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WO2025176895A1 - Liquid uv filter concentrate - Google Patents

Liquid uv filter concentrate

Info

Publication number
WO2025176895A1
WO2025176895A1 PCT/EP2025/054824 EP2025054824W WO2025176895A1 WO 2025176895 A1 WO2025176895 A1 WO 2025176895A1 EP 2025054824 W EP2025054824 W EP 2025054824W WO 2025176895 A1 WO2025176895 A1 WO 2025176895A1
Authority
WO
WIPO (PCT)
Prior art keywords
filter
range
dimethicone
oil
oil soluble
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/EP2025/054824
Other languages
French (fr)
Inventor
Marc-Kevin ANGERMANN
Juergen Claus
Ev Suess
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Symrise AG
Original Assignee
Symrise AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Symrise AG filed Critical Symrise AG
Publication of WO2025176895A1 publication Critical patent/WO2025176895A1/en
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00Cosmetics or similar toiletry preparations
    • A61K8/18Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/33Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
    • A61K8/37Esters of carboxylic acids
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00Cosmetics or similar toiletry preparations
    • A61K8/18Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/40Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing nitrogen
    • A61K8/41Amines
    • A61K8/415Aminophenols
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00Cosmetics or similar toiletry preparations
    • A61K8/18Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/49Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing heterocyclic compounds
    • A61K8/494Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing heterocyclic compounds with more than one nitrogen as the only hetero atom
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00Cosmetics or similar toiletry preparations
    • A61K8/18Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/49Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing heterocyclic compounds
    • A61K8/494Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing heterocyclic compounds with more than one nitrogen as the only hetero atom
    • A61K8/4966Triazines or their condensed derivatives
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61QSPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q17/00Barrier preparations; Preparations brought into direct contact with the skin for affording protection against external influences, e.g. sunlight, X-rays or other harmful rays, corrosive materials, bacteria or insect stings
    • A61Q17/04Topical preparations for affording protection against sunlight or other radiation; Topical sun tanning preparations
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16Organic compounds
    • C11D3/20Organic compounds containing oxygen
    • C11D3/2072Aldehydes-ketones
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16Organic compounds
    • C11D3/20Organic compounds containing oxygen
    • C11D3/2093Esters; Carbonates
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16Organic compounds
    • C11D3/26Organic compounds containing nitrogen
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16Organic compounds
    • C11D3/26Organic compounds containing nitrogen
    • C11D3/30Amines; Substituted amines ; Quaternized amines
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16Organic compounds
    • C11D3/37Polymers
    • C11D3/3746Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C11D3/3769(Co)polymerised monomers containing nitrogen, e.g. carbonamides, nitriles or amines
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2800/00Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
    • A61K2800/80Process related aspects concerning the preparation of the cosmetic composition or the storage or application thereof
    • A61K2800/805Corresponding aspects not provided for by any of codes A61K2800/81 - A61K2800/95
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61QSPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q15/00Anti-perspirants or body deodorants
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61QSPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q17/00Barrier preparations; Preparations brought into direct contact with the skin for affording protection against external influences, e.g. sunlight, X-rays or other harmful rays, corrosive materials, bacteria or insect stings
    • A61Q17/005Antimicrobial preparations
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61QSPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q19/00Preparations for care of the skin
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61QSPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q19/00Preparations for care of the skin
    • A61Q19/002Aftershave preparations
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61QSPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q19/00Preparations for care of the skin
    • A61Q19/06Preparations for care of the skin for countering cellulitis
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61QSPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q19/00Preparations for care of the skin
    • A61Q19/08Anti-ageing preparations
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61QSPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q19/00Preparations for care of the skin
    • A61Q19/10Washing or bathing preparations

Definitions

  • UV light also contributes to aging by causing free radicals to form in the skin.
  • Free radicals include, for example, singlet oxygen, hydroxyl radical, the superoxide anion, nitric oxide and hydrogen radicals. Free radicals attack DNA, membrane lipids and proteins, generating carbon radicals. These in turn react with oxygen to produce a peroxyl radical that can attack adjacent fatty acids to generate new carbon radicals. This cascade leads to a chain reaction producing lipid peroxidation products. Damage to the cell membrane results in loss of cell permeability, increased intercellular ionic concentration, and decreased ability to excrete or detoxify waste products. The result is a loss of skin elasticity and the appearance of wrinkles. This process is commonly referred to as photo-aging.
  • UV rays are classified according to their wavelength as UVA rays (320 to 400 nm) or UVB rays (280 to 320 nm).
  • anti-sun/sunscreen compositions comprising screening agents that are active in the UVA-range and in the UVB-range, i.e. within the full range of 280 nm to 400 nm, are generally used.
  • UV filter in powder form for manufacturing sunscreen compositions can be more energy-intensive compared to the use of liquid ones.
  • UV filters in powder form require additional steps for safe and effective handling, such as protective equipment and specialized mixing processes to ensure homogeneity.
  • liquid UV filter mixtures simplify the manufacturing process, leading to reduces labor, time, and energy expenditures. This efficiency translates to cost savings and potentially safer, more streamlined production workflows.
  • the liquid UV filter concentrates of the presently claimed invention can be processed into a sunscreen composition with a broad spectrum of SPF, in particular offering the potential of enhancing the sun protection factor by increasing the concentration of active ingredient.
  • the liquid UV filters mix more evenly within formulations and thereby ensure uniform distribution of UV filters in the final product and consistent protection.
  • the primary application of the liquid UV filter concentrates of the presently claimed invention lies in their incorporation into sunscreen compositions. However, their advantageous properties in the manufacturing process also render them suitable for use in other cosmetic, personal care, and homecare products that require lower UV filter concentrations. In these applications as well, the liquid UV filter concentrates of the presently claimed invention enhance manufacturing efficiency, ensure a safer production process, minimize material costs, and further reduce handling and exposure risks for production personnel.
  • the term “at least one ... compound” means that the sunscreen composition or cosmetic composition or cosmetic composition according to the presently claimed invention can comprise either one of said subsequently described individual compound or a mixture of two, three, four, five, six or even more different of said subsequently compounds.
  • a “sunscreen composition” in the context of the presently claimed invention is a photoprotective topical composition for the skin including UV filter compounds that absorbs or reflects some of the sun’s ultraviolet (UV) radiation and thus helps protect against sunburn and most importantly prevent skin cancer.
  • Sunscreens come as lotions, sprays, gels, foams (such as an expanded foam lotion or whipped lotion), sticks, powders and other topical compositions.
  • UV-absorbing compounds are used not only in sunscreen, but also in other personal care compositions, such as lipstick, shampoo, hair spray, body wash, toilet soap, and insect repellent.
  • Personal care products in the context of the presently claimed invention are consumer products intended for cleansing, protecting, or enhancing the appearance of the body, including skin, hair, oral cavity, and intimate areas. These products are generally used for hygiene, grooming, and body care, and may provide functional or aesthetic benefits.
  • step (C) keeping the heated mixture of step (B) at a temperature T3 to obtain a UV filter concentrate; wherein the temperature T3 is lower than the highest melting point of the at least two different oil soluble organic UV filters UV2 and UV3 by a range between > 20 to ⁇ 70 °C.
  • the temperature T3 is lower than the highest melting point of the at least two different oil soluble organic UV filters UV2 and UV3 by a value in a range between > 20 to ⁇ 70 °C. It is thus advantageous and surprisingly possible to keep the heated mixture of step (B) in step (C) at a temperature T3 which is significantly lower than the melting points of the at least two different oil soluble organic UV filters.
  • the temperature T3 is lower than the highest melting point of the at least two different oil soluble organic UV filters UV2 and UV3 by a range between > 20 to ⁇ 50 °C, more preferably by a range between > 20 to ⁇ 40 °C.
  • the temperature T3 is lower than the highest melting point of the at least two different oil soluble organic UV filters UV2 and UV3 by at least 30 °C, more preferably by at least 40 °C, even more preferably by at least 50 °C.
  • the step (B) is carried out within a time period in the range of > 5 min to ⁇ 24 hours, more preferably within a time period in the range of > 10 min to ⁇ 12 hours, even more preferably within a time period in the range of > 30 min to ⁇ 6 hours, yet more preferably within a time period in the range of > 2 to 3 ⁇ hours.
  • the at least two different oil soluble organic UV filters UV2 and UV3 are selected from the group consisting of diethylhexyl butamido triazone, benzophenone-3, drometrizole trisiloxane, 4-methylbenzylidene camphor, diethylamino hydroxy benzoyl hexyl benzoate, benzophenone-8, butyl methoxydibenzoylmethane, bis-ethylhexyloxyphenol methoxyphenyl triazine, methoxypropylamino cyclohexenylidene ethoxyethylcyanoacetate and ethylhexyl triazone.
  • the organic oil soluble UV filter UV2 comprises at least one organic UV filter UV2a and at least one organic UV filter UV2b, wherein the organic oil soluble UV filter UV2a has a melting point MP2a in the range of > 30 to ⁇ 70 °C and the organic oil soluble UV filter UV2b has a melting point MP2b in the range of > 71 to ⁇ 100 °C.
  • the at least one organic UV filter UV2b is selected from the group consisting of butyl methoxydibenzoylmethane, diethylhexyl butamido triazone, bis-ethylhexyloxyphenol methoxyphenyl triazine, drometrizole trisiloxane and methoxypropylamino cyclohexenylidene ethoxyethylcyanoacetate, more preferably the at least one organic UV filter UV2b is bis- ethylhexyloxyphenol methoxyphenyl triazine.
  • step (B1) mixing the heated solution of step (A) with at least one oil soluble organic UV filter UV2a which has a melting point MP2a in the range of > 30 to ⁇ 70 °C to obtain a heated mixture 1
  • step (B2) mixing the heated mixture 1 of step (B1) with at least one oil soluble organic UV filter UV2b which has a melting point MP2b in the range of > 71 to ⁇ 100 °C to obtain a heated mixture 2
  • step (B3) mixing the heated mixture 2 of step (B2) with at least one oil soluble organic UV filter UV3 which has a melting point MP3 in the range of > 101 to ⁇ 130 °C at a temperature T23 in the range of > 80 to ⁇ 130 °C to obtain a heated mixture 3.
  • the process further comprises the step of: (D) allowing the UV filter concentrate of step (C) to cool to room temperature within a time period in the range of > 30 min to ⁇ 48 hours, preferably in the range of > 30 min to ⁇ 24 hours, more preferably in the range of > 30 min to ⁇ 12 hours, even more preferably in the range of > 30 min to ⁇ 6 hours.
  • the UV filter concentrate of the presently claimed invention does not contain any oil soluble organic UV filters in its crystalline form.
  • the UV filter concentrate of the presently claimed invention remains liquid and does not show any crystals at room temperature for a period of at least 3 months, more preferably at least 6 months, even more preferably at least 12 months, preferably when the UV filter concentrate is stored in a closed container.
  • Alkyl cellulose and in particular ethyl cellulose, is a derivative of cellulose in which one or more of the hydroxyl groups on the glucose monomers comprising the cellulose backbone are etherified with alkyl groups.
  • Ethyl cellulose is characterized by its degree of substitution (DS), which refers to the average number of hydroxyl groups replaced by ethyl groups per glucose unit.
  • the DS for ethyl cellulose used in this application preferably ranges from 1.0 to 3.0, indicating that each glucose monomer can be substituted with one to three ethyl groups.
  • the ethyl cellulose has a weight average molecular weight in the range from > 10,000 to ⁇ 300,000 g/mol.
  • ethyl cellulose can be sourced from both natural and fossil-based origins.
  • the ethyl cellulose is sourced from natural sources.
  • Natural sources include purified cellulose obtained from cotton or wood pulp, which is then chemically modified to introduce ethyl groups.
  • Suppliers of ethyl cellulose for industrial use include, but are not limited to, companies such as Dow Chemical Company, Sigma-Aldrich, and Ashland Inc. (AntaronTM Eco).
  • the at least one alkyl cellulose preferably ethyl cellulose
  • the ratio of the sum of weight percentages of at least two different oil soluble organic UV filters UV2 and UV3 to the weight percentage of the at least one oil soluble organic UV filter UV1 is in the range of > 3.0:1.0 to ⁇ 20.0:1.0, more preferably in the range of > 4.0:1.0 to ⁇ 7.0:1.0, wherein the weight percentages are based on the total weight of the UV filter concentrate.
  • the presently claimed invention is directed to a UV filter concentrate which is liquid at room temperature comprising
  • the presently claimed invention is directed to a UV filter concentrate which is liquid at room temperature comprising
  • (b2) at least one organic oil soluble UV filter UV2b which has a melting point MP2b in the range of > 71 to ⁇ 100 °C,
  • (b2) > 20 to ⁇ 45 wt.% of at least one organic oil soluble UV filter UV2b which has a melting point MP2b in the range of > 71 to ⁇ 100 °C,
  • the component (a) is 2-ethylhexyl salicylate
  • the component (b1) is diethylamino hydroxy benzoyl hexyl benzoate
  • the component (b2) is bisethylhexyloxyphenol methoxyphenyl triazine
  • the component (c) is ethylhexyl triazone.
  • the presently claimed invention is directed to a sunscreen composition or cosmetic composition or homecare composition
  • a sunscreen composition or cosmetic composition or homecare composition comprising at least one UV filter concentrate as described above or the at least one UV filter concentrate obtained by the process as described above and at least one filter selected from the group consisting of 2-ethylhexyl salicylate, ethylhexyl triazone, butyl methoxydibenzoylmethane, terephthalylidene dibornanesulphonic acid and salts, hexyl 2-(4-diethylamino-2-hydroxybenzoyl)benzoate, menthyl anthranilate, 2,2'-(1 ,4-phenylene)bis-[1 H-benzimidazole-4,5-disulfonic acid] disodium salt, methoxy propylamino cyclohexenylidene ethoxyethyl cyanoacetate, octocrylene, homosalate,
  • the at least one oil (d) is selected from the group consisting of esters of linear or branched C2-C10 diols with linear or branched Ce-C22-fatty acids, esters of Cis-Css-alkylhydroxy carboxylic acids with linear or branched Ce-C22-fatty alcohols and/or C2-C5 alcohols, esters of C2- Ci2-dicarboxylic acids with linear or branched alcohols having 1 to 22 carbon atoms or polyols having 2 to 10 carbon atoms and 2 to 6 hydroxyl groups, esters of benzoic acid with linear and/or branched C6-C22-alcohols, fatty acid esters with polyols, aliphatic or naphthenic hydrocarbons, glycerol mono-, di- and triesters and partial esters based on linear, branched, unsaturated or saturated C6/22 fatty acids, ricinoleic acid and 12-hydroxystearic acid and glycerol,
  • the at least one oil (d) is selected from the group consisting of ethylhexyl acetoxystearate, propanediol dicaprylate, propanediol caprylate, diethylhexyl 2,6-naphthalate, diisopropyl adipate and caprylic/capric triglyceride.
  • the at least one oil (d) is selected from the group consisting of ether-based emollients, preferably from the group consisting of Dicaprylyl Ether, Decyl Ether, C12-15 Alkyl Ether, Dimethicone Copolyol Ether, and Cetearyl Ethylhexanoate.
  • ether-based emollients preferably from the group consisting of Dicaprylyl Ether, Decyl Ether, C12-15 Alkyl Ether, Dimethicone Copolyol Ether, and Cetearyl Ethylhexanoate.
  • the at least one oil (d) is present in an amount in the range of > 10.0 to ⁇ 50 wt.%, more preferably in the range of > 20 to ⁇ 45 wt.%, based on the total weight of the UV filter concentrate.
  • the oil (d) is Decyl Cocoate. In another preferred embodiment, the oil (d) is Decyl Oleate. In another preferred embodiment, the oil (d) is Dicaprylyl Carbonate. In another preferred embodiment, the oil (d) is Diethyl Succinate. In another preferred embodiment, the oil (d) is Diethylhexyl 2,6-Naphthalate. In another preferred embodiment, the oil (d) is Diethylhexyl Carbonate. In another preferred embodiment, the oil (d) is Dibutyl Adipate. In another preferred embodiment, the oil (d) is Diisopropyl Adipate. In another preferred embodiment, the oil (d) is Dipropylheptyl Carbonate.
  • the oil (d) is Myristyl Myristate. In another preferred embodiment, the oil (d) is Oleic/Linoleic Triglyceride. In another preferred embodiment, the oil (d) is Oleic/Palmitic Triglyceride. In another preferred embodiment, the oil (d) is Oleic/Palmitic/Lauric/Myristic/Linoleic Triglyceride. In another preferred embodiment, the oil (d) is Propanediol Caprylate. In another preferred embodiment, the oil (d) is Ricinoleic/Caproic/Caprylic/Capric Triglyceride. In another preferred embodiment, the oil (d) is Oleostearine.
  • UV filters are well known in the art for their use in stopping radiation.
  • a UV filter is a compound or a mixture of compounds that block or absorb ultraviolet (UV) light.
  • UV classifications include UVA (320 to 400 nm), UVB (290 to 320 nm) and UVC (200 to 280 nm).
  • UV-absorbing compounds are used not only in sunscreen, but also in other personal care products, such as lipstick, shampoo, hair spray, body wash, toilet soap, and insect repellent.
  • Chemical filters protect against UV-radiation by absorbing, reflecting, or scattering. Reflection and scattering are accomplished by inorganic physical UV filters, such as titanium dioxide (TiC>2) and zinc oxide (ZnO). Absorption, mainly of UVB, is done by organic UV filters, which are known as chemical UV filters.
  • the inorganic UV filters also encompass nano pigments (mean size of the primary particles: generally from 1 nm to 100 nm, preferably from 3 nm to 90 nm, more preferred from 5 nm to 80 nm and most preferred from 10 to 70 nm) of untreated or treated metal oxides such as, for example, nano pigments of titanium dioxide (TiCh) (amorphous or crystallized in rutile and/or anatase form), zinc oxide (ZnO), iron oxide (Fe2Os), zirconium oxide (ZrO2), silicon (SiO2), manganese (e.g. MnO), aluminium (AI2O3), cerium oxide (66203), barium carbonate (BaOOs), calcium carbonate (OaOOs), or mixtures thereof.
  • nano pigments mean size of the primary particles: generally from 1 nm to 100 nm, preferably from 3 nm to 90 nm, more preferred from 5 nm to 80 nm and most preferred from 10
  • the treated nano pigments and non-nano pigments may more particularly be titanium oxides treated with silica and alumina, alumina and aluminum stearate, alumina and aluminium laurate, iron oxides and iron stearate, silica, alumina and silicone, sodium hexametaphosphate, octyltrimethoxysilane, alumina and stearic acid, alumina and glycerol, or alumina and silicone or polyhydroxy stearic acid, hydrated silica, jojoba esters, glutamic acid and derivates.
  • titanium oxide nano pigments treated with a silicone are preferably TiO2 treated with octyltrimethylsilane, preferably for which the mean size of the elementary particles is from 25 to 40 nm; TiC>2 treated with a polydimethylsiloxane, preferably for which the mean size of the elementary particles is 21 nm; or TiC>2 treated with a polydimethylhydrogenosiloxane, preferably for which the mean size of the elementary particles is 25 nm.
  • the sunscreen composition or cosmetic composition or homecare composition preferably comprises at least one water soluble UV filter such as phenyl benzimidazole sulfonic acid (PBSA), sulisobenzone-sodium salt, benzylidene camphor sulfonic acid, camphor Benzalkonium methosulfate, cinoxate, disodium phenyl dibenzylmidazole tetrasulfonate, terephthalylidene dicamphor sulfonic Acid, PABA, and PEG-25 PAB; and any mixture thereof.
  • PBSA phenyl benzimidazole sulfonic acid
  • sulisobenzone-sodium salt benzylidene camphor sulfonic acid
  • camphor Benzalkonium methosulfate cinoxate
  • disodium phenyl dibenzylmidazole tetrasulfonate terephthalylidene dicamphor
  • the sunscreen composition or cosmetic composition or cosmetic composition according to the presently claimed invention comprises at least three, preferably at least four or even more different organic and/or inorganic UV filters, i.e. in particular organic UV filters and/or inorganic pigments (UV filtering pigments).
  • organic UV filters and/or inorganic pigments UV filtering pigments
  • the sunscreen composition or cosmetic composition or cosmetic composition according to the presently claimed invention comprises at least one UVA filter and at least one UVB filter.
  • Such sunscreen compositions or cosmetic compositions according to the presently claimed invention provide broad spectrum photo protection, i.e. protection from both UVA and UVB.
  • the sunscreen composition or cosmetic composition or cosmetic composition according to the presently claimed invention comprises a combination with one, two, three or more broadband filters which are selected from the group consisting of 2- ethylhexyl-2-cyano-3,3-diphenyl acrylate, ethyl-2-cyano-3,3'-diphenyl acrylate, dihydroxy-4- methoxybenzophenone, 2,4-dihydroxybenzophenone, tetrahydroxy benzophenone, 2,2'- dihydroxy-4,4'-dimethoxybenzophenone, 2-hydroxy-4-n-octoxybenzophenone, 2-hydroxy-4- methoxy-4'-methylbenzophenone, sodium hydroxymethoxy benzophenone sulfonate, disodium- 2,2'-dihydroxy-4,4'-dimethoxy-5,5'-disulfobenzophenone, phenol, 2-(2H-benzotriazol-2-yl)-4- methyl
  • Standard film forming agents are chitosan, microcrystalline chitosan, quaternized chitosan, polyvinyl pyrrolidone, vinyl pyrrolidone/vinyl acetate copolymers, polymers of the acrylic acid series, quaternary cellulose derivatives, collagen, hyaluronic acid and salts thereof and similar compounds.
  • the film forming agents are selected from the group consisting of Trimethylpentanediol/Adipic Acid/Glycerin Crosspolymer (such as WetFilm), Octyldodecyl Citrate Crosspolymer (such as CosmoSurf CE 100), Polyglyceryl-3 Methyl Glucose Distearate (such as TegoCare 450), C28-52 Olefin/Undecylenic Acid Copolymer (such as Performa V6112), Hydrolyzed Jojoba esters, Jojoba Esters, Aqua (such as Floraester Jojoba K100), Cyclopentasiloxane Acrylates/Dimethicone copolymer (such as KP545), Styrene/Acrylates Copolymer (such as Dermacryl E Polymer), Acrylates/Octylacrylamide Copolymer (such as Dermacryl 2.0 Polymer), Beeswax (Cera Alba)
  • the film forming agents are selected from the group consisting of Hydrolyzed Jojoba esters, Jojoba Esters, Aqua (such as Floraester Jojoba K100), Cyclopentasiloxane Acrylates/Dimethicone copolymer (such as KP545), Styrene/Acrylates Copolymer (such as Dermacryl E Polymer), Acrylates/Octylacrylamide Copolymer (such as Dermacryl 2.0 Polymer), Beeswax (Cera Alba) (and) Sodium Stearoyl Lactylate (such as SymEffect Sun), Pullulan, Xanthan Gum, Microcrystalline cellulose (and) Sphingomonas ferment extract (and) Cellulose gum (such as PemuPurTM START Polymer), Microcrystalline Cellulose (and) Cellulose Gum (such as Natpure Cellgum Plus), Hydrogenated Polycyclopentadiene (and) Caprylic/Capric Trigly
  • the group of secondary sun protection ingredients also encompasses plant-based extract(s).
  • Said plant-based extracts have antioxidative and in general photoprotective properties and interrupt the photochemical reaction chain which is initiated when UV rays penetrate into the skin, thus, are effective in preventing skin aging.
  • UV filters are incorporated either in the aqueous or in the lipophilic part of the sunscreen composition or cosmetic composition, depending if they are water or oil (fat) soluble/miscible UV filters or may even be added to the final product by standard methods known to a person skilled in the art.
  • sunscreen compositions or cosmetic compositions as defined herein are intended for topical application, such as in the form of ointments, pastes, creams and gels, etc. they are preferably based on a carrier.
  • a carrier Most common acceptable carrier is water.
  • Acceptable carries other than water include glycerin, C1-4 alcohols, organic solvents, fatty alcohols, fatty ethers, fatty esters, polyols, glycols, vegetable oils, mineral oils, liposomes, laminar lipid materials, water, or a mixture thereof.
  • compositions of the presently claimed invention may include at least one solubilizing agent.
  • Solubilizing agents are compounds that help solubilize the UV filter(s) and/or other components in the compositions.
  • a particularly useful but non limiting example of a solubilizing agent is a hydrotrope.
  • Hydrotropes (or hydrotropic agents) are a diverse class of typically water- soluble compounds that may be characterized by an amphiphilic molecular structure and an ability to dramatically increase the solubility of poorly soluble organic molecules in water.
  • Non-limiting examples of hydrotopes include sodium 1 ,3-benzenedisulfonate, sodium benzoate, sodium 4- pyridinecarboxylate, sodium salicylate, sodium benzene sulfonate, caffeine, sodium p-toluene sulfonate, sodium butyl monoglycolsulfate, 4- aminobenzoic acid HCI, sodium cumene sulfonate, N,N-diethylnicotinamide, N-picolylnicotinamide, N-allylnicotinamide, 2-methacryloyloxyethyl phosphorylcholine, resorcinol, butylurea, pyrogallol, N-picolylacetamide 3.5, procaine HCI, proline HCI, nicotinamide, pyridine, 3-picolylamine, sodium ibuprofen, sodium xylenesulfonate, ethyl carbamate, pyridoxal
  • the sunscreen composition or cosmetic composition may include at least one oil phase or at least one oil component, waxes, starch, tragacanth, cellulose derivatives, polyethylene glycols, silicones, bentonites, silica, talc and zinc oxide or any mixture thereof.
  • Powders include carriers such as lactose, talc, silica, aluminium hydroxide, calcium silicate and polyamide powder or any mixture thereof.
  • Solutions and emulsions include carriers such as solvents such as water, ethanol, isopropanol, ethyl carbonate, ethyl acetate, benzyl alcohol, propylene glycol, etc. or any mixture thereof. However, preparations solely based on water are also possible. Oils, oil-in-water and water-in-oil emulsions, etc. are preferred.
  • the oil phase or the oil component in the sunscreen composition or cosmetic composition or cosmetic composition according to the presently claimed invention which may be suitable are for example plant oils, hydrocarbons, fatty alcohols, fatty acid esters, or mixtures of two or more of the aforesaid oil components.
  • plant oils also includes unsaturated plant oils. Unsaturated oils or vegetable oils can be transformed through partial or complete “hydrogenation” into oils of higher melting point.
  • the hydrogenation process involves “sparging” the oil at high temperature and pressure with hydrogen in the presence of a catalyst, typically a powdered nickel compound. As each carbon-carbon double-bond is chemically reduced to a single bond, two hydrogen atoms each form single bonds with the two carbon atoms. The elimination of double bonds by adding hydrogen atoms is called saturation; as the degree of saturation increases, the oil progresses toward being fully hydrogenated.
  • An oil may be hydrogenated to increase resistance to rancidity (oxidation) or to change its physical characteristics.
  • the plant oil is selected from the group consisting of Persea Gratissima (Avocado Oil), Abies Alba Seed Oil, Acacia Victoriae Seed Oil, Actinidia Chinensis (Kiwi) Seed Oil, Amaranthus Hypochondriacus Seed Oil, Arachis Hypogaea (Peanut) Oil, Astrocaryum Murumuru Seed Butter, Astrocaryum Tucuma Seed Butter, Astrocaryum Tucuma Seed Oil, Astrocaryum Vulgare Fruit Oil, Astrocaryum Vulgare Kernel Oil, Avena Sativa (Oat) Kernel Oil, Brassica Alba Seed Oil, Brassica Campestris (Rapeseed) Seed Oil, Butyrospermum Parkii (Shea) Butter, Butyrospermum Parkii (Shea) Oil, Calendula Officinalis Seed Oil, Calophy
  • Hydrocarbons are in general organic compounds consisting entirely of hydrogen and carbon. As defined by IUPAC nomenclature or organic chemistry, the classifications for hydrocarbons are:
  • Saturated hydrocarbons are the simplest of the hydrocarbon species. They are composed entirely of single bonds and are saturated with hydrogen.
  • the formula for acyclic saturated hydrocarbons i.e., alkanes
  • the most general form of saturated hydrocarbons is C n H2n+2(i-o, where r is the number of rings. Those with exactly one ring are the cycloalkanes.
  • Saturated hydrocarbons are the basis of petroleum fuels and are found as either linear or branched species.
  • Unsaturated hydrocarbons have one or more double or triple bonds between carbon atoms. Those with double bond are called alkenes. Those with one double bond have the formula C n H2n (assuming non-cyclic structures). Those containing triple bonds are called alkynes. Those with one triple bond have the formula C n H2n-2.
  • Aromatic hydrocarbons also known as arenes, are hydrocarbons that have at least one aromatic ring.
  • Hydrocarbons can be inter alia liquids (e.g. hexane and benzene), waxes or low melting solids (e.g. paraffin wax and naphthalene).
  • the term 'aliphatic' refers to non-aromatic hydrocarbons. Saturated aliphatic hydrocarbons are sometimes referred to as “paraffins”.
  • Mineral oils and waxes are mixtures of predominantly saturated hydrocarbons consisting of straight-chain, branched and ring structures with carbon chain lengths greater than C14.
  • Mineral oils and waxes are chemical substances prepared from naturally occurring crude petroleum oil. They mainly consist of mineral oil saturated hydrocarbons (MOSH) and mineral oil aromatic hydrocarbons (MOAH).
  • a fatty alcohol (or long-chain alcohol) is usually a high-molecular-weight, straight-chain primary alcohol, but can also range from as few as 4 to 6 carbons to as many as 22 to 26, derived from natural fats and oils. The precise chain length varies with the source.
  • Some commercially important fatty alcohols are lauryl, stearyl and oleyl alcohols. They are colorless oily liquids (for smaller carbon numbers) or waxy solids, although impure samples may appear yellow.
  • Fatty alcohols usually have an even number of carbon atoms and a single alcohol group (-OH) attached to the terminal carbon. Some are unsaturated and some are branched.
  • ethylene can be oligomerized to give mixtures of alkenes, which are subjected to hydroformylation, this process affording odd-numbered aldehyde, which is subsequently hydrogenated.
  • Fatty alcohols are mainly used in the production of detergents and surfactants. They are components also of cosmetic solvents. They find use as co-emulsifiers, emollients and thickeners in cosmetics.
  • Finsolv® TN linear or branched, symmetrical or asymmetrical dialkyl ethers having 6 to 22 carbon atoms per alkyl group, such as, for example, dicaprylyl ether (Cetiol® OE), ring-opening products of epoxidized fatty acid esters with polyols, silicone oils (cyclomethicones, silicone methicone grades, etc.) and/or aliphatic or naphthenic hydrocarbons, such as, for example, squalane, squalene or dialkylcyclohexanes.
  • dicaprylyl ether such as, for example, dicaprylyl ether (Cetiol® OE), ring-opening products of epoxidized fatty acid esters with polyols, silicone oils (cyclomethicones, silicone methicone grades, etc.) and/or aliphatic or naphthenic hydrocarbons, such as, for example, squalane, squalen
  • cosmetical excipients and/or active substances and/or additives and/or auxiliaries such as emollients, rheology additives, silicones, dry-feel modifiers, skin moisturizing and/or moisture-retaining substances, lenitive substances, physiological cooling agents, antioxidants, emulsifiers, anti-microbial agents, preservatives, fragrances or perfume oils, and any mixture of two or more of the afore-mentioned substances are particularly preferred in the preparation of sunscreen compositions or cosmetic compositions.
  • esters of linear Ce-C22-fatty acids with branched alcohols in particular 2- ethylhexanol
  • esters of C18-C38- alkylhydroxy carboxylic acids with linear or branched Ce-C 22-fatty alcohols in particular Dioctyl Malate
  • esters of linear and/or branched fatty acids with polyhydric alcohols such as, for example, propylene glycol, dimerdiol or trimertriol
  • Guerbet alcohols triglycerides based on Ce -Cw-fatty acids, liquid mono-/di-/triglyceride mixtures based on Ce-Cis- fatty acids
  • esters of Ce- C22-fatty alcohols and/or Guerbet alcohols with aromatic carboxylic acids in particular benzoic acid
  • Rheology modifiers The sunscreen composition or cosmetic composition or cosmetic composition according to the presently claimed invention advantageously includes one or more thickening agents and/or rheology modifier.
  • the rheology modifier is present in an amount that prevents significant dripping or pooling of the composition after application to the skin.
  • the rheology modifier is a carbomer.
  • rheology modifiers include thickener or gelling agents, including substances which can increase the viscosity of a composition.
  • Thickening agents include those that can increase the viscosity of a composition without substantially modifying the efficacy of the active ingredient within the formulation. Thickening agents can also increase the stability of the formulations of the present application.
  • thickening agents include hydrogenated polyisobutene or trihydroxy stearin, or a mixture of both.
  • Additional non-limiting examples of additional thickening agents that can be used in the context of the present application include carboxylic acid polymers, crosslinked polyacrylate polymers, polyacrylamide polymers, polysaccharides, and gums.
  • alkyl substituted cellulose where the hydroxy groups of the cellulose polymer are hydroxyalkylated (preferably hydroxy ethylated or hydroxypropylated) to form a hydroxyalkylated cellulose which is then further modified with a C10-C30 straight chain or branched chain alkyl group through an ether linkage.
  • these polymers are ethers of C10- 030 straight or branched chain alcohols with hydroxyalkylcelluloses.
  • Other useful polysaccharides include scleroglucans comprising a linear chain of (1-3) linked glucose units with a (1-6) linked glucose every three unit.
  • Silicones In order to impart a silky, spreadable, and luxurious texture and to make skin look and feel smoother, and additionally to improve processability (antifoaming) the sunscreen product or cosmetic or pharmaceutical preparation according to the presently claimed invention preferably includes one or more silicones or silicone derivatives.
  • Suitable silicones can be chosen from the group consisting of Acefylline Methylsilanol Mannuronate, Acetylmethionyl Methylsilanol Elastinate Acrylates/Behenyl, Acrylate/Dimethicone Methacrylate Copolymer, Acrylates/Behenyl Methacrylate/Dimethicone Methacrylate Copolymer, Acrylates/Bis-Hydroxypropyl Dimethicone Crosspolymer, Acrylates/Dimethicone Copolymer, Acrylates/Dimethicone Methacrylate/Ethylhexyl Acrylate Copolymer, Acrylates/Dimethiconol Acrylate Copolymer, Acrylates/Ethylhexyl Acrylate/Dimethicone Methacrylate Copolymer, Acrylates/Octyl- acrylamide/Diphenyl Amodimethicone Copolymer,
  • Trisiloxane Perfluorocaprylyl riethoxysilylethyl Methicone, Perfluorononyl Dimethicone, Perfluorononyl Dimethicone/Methicone/Amodimethicone Crosspolymer, Perfluorononylethyl Carboxydecyl Behenyl Dimethicone, Perfluorononylethyl Carboxydecyl HexacoSY-l Dimethicone, Perfluorononylethyl Carboxydecyl Lauryl/Behenyl Dimethicone, Perfluorononylethyl Carboxydecyl Lauryl Dimethicone, Perfluorononylethyl Carboxydecyl PEG-8 Dimethicone, Perfluorononylethyl Carboxydecyl PEG-10 Dimethicone, Perfluorononylethyl Dimethicone/Meth
  • the skin moisturizing agents are selected from the group consisting of glycerol, 1 ,2-propylene glycol, 1 ,2-butylene glycol, 1 ,3-butylene glycol, 1 ,2- pentanediol, 1 ,2-hexanediol, 1 ,2-octanediol and 1 ,2-decanediol.
  • Further skin moisturizing and/or moisture-retaining substances include sodium lactate, urea, urea derivatives, alcohols, glycerol, diols such as propylene glycol, hexylene glycol, collagen, elastin or hyaluronic acid, diacyl adipates, petrolatum, urocanic acid, lecithin, panthenol, phytantriol, lycopene, (pseudo- )ceramides, glycosphingolipids, cholesterol, phytosterols, chitosan, chondroitin sulphate, lanolin, lanolin esters, amino acids, alpha-hydroxy acids (such as citric acid, lactic acid, malic acid) and their derivatives, mono-, di- and oligosaccharides such as glucose, galactose, fructose, mannose, fructose and lactose, polysugars such as R-glucans, in particular 1 ,3-1
  • cooling agents listed can also be used in combination with one another: which are preferably selected here from the following list: menthol and menthol derivatives (for example L- menthol, D-menthol, racemic menthol, isomenthol, neoisomenthol, neomenthol) menthylethers (for example (l-menthoxy)-1 ,2-propanediol, (l-menthoxy)-2-methyl-1 ,2-propanediol, l-menthyl- methylether), menthone glyceryl acetal, menthone glyceryl ketal or mixtures of both, menthylesters (for example menthylformiate, menthylacetate, menthylisobutyrate, menthyhydroxyisobutyrat, menthyllactates, L-menthyl-L-lactate, L-menthyl-D-lactate,
  • antioxidants encompass amino acids (preferably glycine, histidine, tyrosine, tryptophan) and derivatives thereof, imidazoles (preferably urocanic acid) and derivatives thereof, peptides, preferably D,L-carnosine, D-carnosine, L-carnosine and derivatives thereof (preferably anserine), carnitine, creatine, matrikine peptides (preferably lysyl-threonyl-threonyl-lysyl-serine) and palmitoylated pentapeptides, carotenoids, carotenes (preferably alpha-carotene, betacarotene, lycopene) and derivatives thereof, lipoic acid and derivatives thereof (preferably dihydrolipoic acid), aurothioglucose, propyl thiouracil and other thi
  • chelators preferably alpha-hydroxy fatty acids, palmitic acid, phytic acid, lactoferrin, alpha-hydroxy acids (preferably citric acid, lactic acid, malic acid), humic acid, bile acid, bile extracts, tannins, bilirubin, biliverdin, EDTA, EGTA and derivatives thereof), unsaturated fatty acids and derivatives thereof (preferably gamma-linolenic acid, linoleic acid, oleic acid), folic acid and derivatives thereof, ubiquinone and derivatives thereof, ubiquinol and derivatives thereof, vitamin C and derivatives (preferably ascorbyl palmitate, Mg ascorbyl phosphate, ascorbyl acetate, ascorbyl glucoside), tocopherols and derivatives (preferably vitamin E acetate), vitamin A and derivatives (vitamin A palmitate) and coniferyl benzoate of benzoic resin,
  • metal chelators preferably alpha-hydroxy fatty
  • Emulsifiers In addition, the sunscreen composition or cosmetic composition or cosmetic composition according to the presently claimed invention can also advantageously contain one or more emulsifiers in order to keep the sunscreen composition or cosmetic composition or cosmetic composition stable.
  • Emulsifiers include amphoteric, anionic, cationic or nonionic emulsifiers, used alone or as a mixture.
  • the emulsifiers are chosen in an appropriate manner according to the emulsion to be obtained. Preferred examples include: products of the addition of 2 to 30 mol ethylene oxide and/or 0 to 5 mol propylene oxide onto linear Cs-22 fatty alcohols, onto C12-22 fatty acids and onto alkyl phenols containing 8 to 15 carbon atoms in the alkyl group;
  • Mixtures of compounds from several of these classes are also suitable; addition products of 2 to 15 mol ethylene oxide onto castor oil and/or hydrogenated castor oil; partial esters based on linear, branched, unsaturated or saturated C6/22 fatty acids, ricinoleic acid and 12- hydroxy stearic acid and glycerol, polyglycerol, pentaerythritol, - dipentaerythritol, sugar alcohols (for example sorbitol), alkyl glucosides (for example methyl glucoside, butyl glucoside, lauryl glucoside) and polyglucosides (for example cellulose); mono-, di and trialkyl phosphates and mono-, di- and/or tri-PEG-alkyl phosphates and salts thereof; wool wax alcohols; polysiloxane/polyalkyl polyether copolymers and corresponding derivatives; mixed esters of pentaerythritol, fatty
  • the addition products of ethylene oxide and/or propylene oxide onto fatty alcohols, fatty acids, alkylphenols, glycerol mono- and diesters and sorbitan mono- and diesters of fatty acids or onto castor oil are known commercially available products. They are homologue mixtures of which the average degree of alkoxylation corresponds to the ratio between the quantities of ethylene oxide and/or propylene oxide and substrate with which the addition reaction is carried out. C12/18 fatty acid monoesters and diesters of addition products of ethylene oxide onto glycerol are known as lipid layer enhancers for cosmetic formulations.
  • Sorbitan esters are sorbitan monoisostearate, sorbitan sesqui- isostearate, sorbitan diisostearate, sorbitan tri isostea rate, sorbitan monooleate, sorbitan sesquioleate, sorbitan dioleate, sorbitan trioleate, sorbitan monoerucate, sorbitan sesquierucate, sorbitan dierucate, sorbitan trierucate, sorbitan monoricinoleate, sorbitan sesquiricinoleate, sorbitan diricinoleate, sorbitan triricinoleate, sorbitan monohydroxystearate, sorbitan sesqui- hydroxy stea rate, sorbitan dihydroxystearate, sorbitan trihydroxystearate, sorbitan monotartrate, sorbitan sesquitartrate, sorbitan ditartrate, sorbitan trit
  • Polyglycerol esters Typical examples of suitable polyglycerol esters are Polyglyceryl-2 Dipolyhydroxystearate (Dehymuls® PGPH), Polyglycerin-3-Diisostearate (Lameform® TGI), Polyglyceryl-4 Isostearate (Isolan® Gl 34), Polyglyceryl-3 Oleate, Diisostearoyl Polyglyceryl-3 Diisostearate (Isolan® PDI), Polyglyceryl-3 Methylglucose Distearate (Tego Care® 450), Polyglyceryl-3 Beeswax (Cera Beilina®), Polyglyceryl-4 Caprate (Polyglycerol Caprate T2010/90), Polyglyceryl-3 Cetyl Ether (Chimexane® NL), Polyglyceryl-3 Distearate (Cremophor® GS 32) and Polyglyceryl Polyricinoleate (Admul® WOL 140
  • Amphoteric emulsifiers Other suitable emulsifiers are amphoteric or zwitterionic surfactants. Zwitterionic surfactants are surface-active compounds which contain at least one quaternary ammonium group and at least one carboxylate and one sulfonate group in the molecule.
  • ampholytic surfactants are N-alkyl glycines, N-alkyl propionic acids, N-alkylaminobutyric acids, N- alkyliminodipropionic acids, N-hydroxyethyl-N-alkylamidopropyl glycines, N-alkyl taurines, N-alkyl sarcosines, 2-alkylaminopropionic acids and alkylaminoacetic acids containing around 8 to 18 carbon atoms in the alkyl group.
  • Particularly preferred ampholytic surfactants are N-coco- alkylaminopropionate, cocoacylaminoethyl aminopropionate and C12/18 acyl sarcosine.
  • Suitable emulsifiers are, for example, Cetyl Dimethicone Copolyol (e.g. Abil EM-90), Polyglyceryl-2 Dipolyhydroxystearate (e.g. Dehymuls PGPH), Polyglyceryl-3 Diisostearate (e.g. Lameform TGI), Polyglyceryl-4 Isostearate (e.g. Isolan Gl 34), Polyglyceryl-3 Oleate (e.g. Isolan GO 33), Diisostearoyl Polyglyceryl-3 Diisostearate (e.g. Isolan PDI), Polyglyceryl-3 Methylglucose Distearate (e.g.
  • fatty acids e.g. Eumulgin B2, B2, B3, L, HRE 40, HRE 60, RO 40, Cremophor HRE 40, HRE 60, L, WO 7, Dehymuls HRE 7, Arlacel 989
  • the at least one emollient is selected from mixtures of C16- 18 mono-, di-, and triglycerides, more preferably from Glyceryl Oleate Citrate, Caprylic/Capric Triglyceride (such as Dracorin® GOC), and Glyceryl Stearate Citrate (such as Dracorin® CE).
  • Further preferred C16-18 mono-, di-, and triglycerides include Glyceryl Stearate, Glyceryl Palmitate, Glyceryl Oleate, Glyceryl Linoleate, Glyceryl Dioleate, Glyceryl Dipalmitate, Glyceryl Distearate, and Glyceryl Trioleate.
  • Antimicrobial agents The sunscreen composition or cosmetic composition or cosmetic composition according to the presently claimed invention can advantageously combined with an anti-microbial agent which act primarily against microorganisms, in particular bacteria, yeast and/or fungi and includes one or more anti-microbial agents such as 1 ,2-decanediol (decylene glycol), 1 ,2-heptanediol, 1 ,2-hexanediol, 1 ,2-nonanediol, 1 ,2-octanediol, 1 ,2-pentanediol, 1 ,2- propanediol, 1 ,3-propanediol, 2,3-decanediol, 2,3-heptanediol, 2,3-hexanediol, 2,3-nonanediol, 2,3-octanediol, 2,3-pentanediol, 2-benzylh
  • the sunscreen composition or cosmetic composition or cosmetic composition as defined herein is advantageously combined with at least one further antimicrobial agent which is different from the anti-microbial agents specified above.
  • the combination with a further antimicrobial agent provides reliable protection against microbial degradation and deterioration of the preparation, in particular during storage.
  • the further different antimicrobial agent provides reliable protection against other microorganisms as described above, for example Corynebacterium, Anaerococcus, Finegoldia, Moraxella, Porphyromonas, Fusobacterium, Malassezia, Peptoniphilus, Streptococcus, Lactobacillus, Gardnerella, Fannyhessea, Epidermophyton, Trichophyton, Cutibacterium.
  • the combination with a further different antimicrobial agent allows antimicrobial protection against different groups of microorganisms, and, thus, a broader spectrum of microorganism.
  • the further different antimicrobial agent in the context of the presently claimed invention is preferably selected from the group consisting of 2-benzylheptanol, alkyl (C 12-22) trimethyl ammonium bromide and chloride, ascorbic acid and salts thereof, benzalkonium bromide, benzalkonium chloride, benzalkonium saccharinate, benzethonium chloride, Benzoic Acid, camphor, cetylpyridinium chloride, chlorhexidine diacetate, chlorhexidine dihydrochloride, chlorocresol, chloroxylenol, Cyclohexylglycerin, Dimethyl phenylbutanol, Dimethyl phenylpropanol, ethanol, ethyl lauroyl arginate HCI, Ethyl Lauroyl Arginate Laurate, eucalyptol, gluconic acid and salts thereof, glycerin, hexamidine, hexamidine diisethionat
  • the aforesaid antimicrobial agents are used in the sunscreen composition or cosmetic composition or cosmetic composition either as a single component or preferably in a mixture with two or more further of said antimicrobial agents as specified above.
  • the antimicrobial agent is present in the sunscreen composition or cosmetic composition or cosmetic composition in an amount of 0.01 to 25.0 % by weight, preferably 0.02 to 15.0 % by weight, most preferred in an amount of 0.05 to 6.0 % by weight, based on the total weight of the final formulation.
  • Preservatives For preservative purposes, the sunscreen composition or cosmetic composition or cosmetic composition according to the presently claimed invention preferably includes one or more preservatives which are suitable or customary in sunscreen compositions or cosmetic compositions.
  • Drugs The sunscreen composition or cosmetic composition or cosmetic composition according to the presently claimed invention is preferably combined with one or more drugs.
  • the pharmaceutically active agent is selected from anti-acne agents, agents used to treat rosacea, analgesics, anesthetics, anorectals, antihistamines, antiinflammatory agents including non-steroidal anti-inflammatory drugs, antibiotics, antifungals, antivirals, antimicrobials, anti-cancer actives, scabicides, pediculicides, antineoplastics, antiperspirants, antipruritics, antipsoriatic agents, antiseborrheic agents, biologically active proteins and peptides, burn treatment agents, cauterizing agents, depigmenting agents, depilatories, diaper rash treatment agents, enzymes, hair growth stimulants, hair growth retardants including eflornithine and its salts and analogs, hemostatics, kerotolytics, canker sore treatment agents, cold sore
  • the cosmetic is either a rinse off or a leave on preparation.
  • the sunscreen products according to the presently claimed invention may be in the form of an aqueous solution, dispersions, a hydro alcoholic vehicle, a stick, an ointment, a gel, an aerosol (foams, sprays, propellant pump) and the like.
  • the sunscreen composition or cosmetic composition or cosmetic composition according to the presently claimed invention can be present in different forms, e.g. in the form of a dispersion, in the form of a water free formulation, or in the form of an aqueous, aqueous/alcoholic, in particular aqueous/ethanolic, aqueous/glycolic or alcoholic/glycolic, in particular ethanolic/glycolic, based solution.
  • the sunscreen composition or cosmetic composition or cosmetic composition according to the invention is a dispersion.
  • the term “dispersion” in the context of the presently claimed invention means, that the sunscreen composition or cosmetic composition or cosmetic composition is a disperse two-phase system consisting of colloidal particles (disperse phase) and a medium in which they are suspended (disperse medium). Both phases are not miscible with each other, only with an emulsifier.
  • Such dispersions for example emulsions, comprise the at least one oil component (without UV filters) preferably in an amount of > 1 % by weight, more preferably in an amount of > 3 % by weight.
  • the sunscreen composition or cosmetic composition or cosmetic composition according to the presently claimed invention takes various forms such as an emulsion, in particular a O/W emulsion, a W/O emulsion, a multiple emulsion, a hydrodispersion gel, a balm, a multiple emulsion of the water-in-oil type (W/O/WO) or of the oil-in-water type (O/W/O), PIT emulsion, Pickering emulsion, a micro-emulsion, a liquid, a lotion, a suspension, a milk, an ointment, a paste, a gel, a cream based, an oil based or a liposome-based formulation or a an aerosol such as foams and sprays, including all types of silicon based emulsions.
  • an emulsion in particular a O/W emulsion, a W/O emulsion, a multiple emulsion, a hydrodispersion gel,
  • the sunscreen composition or cosmetic composition or cosmetic composition according to the presently claimed invention is in the form of an emulsion as defined herein, advantageously in the form of an oil-in-water (O/W) emulsion comprising an oily phase dispersed in an aqueous phase in the presence of an O/W or polymeric emulsifier.
  • O/W oil-in-water
  • the sunscreen composition or cosmetic composition or cosmetic composition according to the presently claimed invention is a dispersion, preferably an emulsion
  • the oil component (without UV filters) is present in the cosmetic or pharmaceutical preparation in an amount of 0.01 to 50.0 % by weight, based on the total weight of the composition.
  • the cosmetic or pharmaceutical preparation comprises the oil component in an amount of 0.1 to 45.0 % by weight, based on the total weight of the composition.
  • the oil component is advantageously used in the cosmetic or pharmaceutical preparation in an amount of at 1.0 to 40 % by weight, based on the total weight of the composition.
  • the sunscreen product or cosmetic product according to the presently claimed invention is a water free formulation, i.e. an oil formulation.
  • the sunscreen composition or cosmetic composition or cosmetic composition according to the presently claimed invention is a water free formulation, i.e. an oil formulation
  • the oil component is present in the cosmetic or pharmaceutical preparation in an amount of > 60 % by weight, preferably in an amount of > 75 % by weight, more preferably in an amount of > 90 % by weight, based on the total weight of the composition.
  • water free formulations include e.g. oils, skin butters, powders, lip stick, antiperspirant/deo sticks, and decorative cosmetics.
  • the aqueous/alcoholic or aqueous/glycolic or alcoholic/glycolic based solution comprises an aliphatic alcohol or a glycol in an amount of 0.1 to 70.0 % by weight, preferably in an amount of 0.5 to 60.0 % by weight, more preferably in an amount of 1.0 to 50.0 % by weight, based on the total weight of the solution.
  • the aliphatic alcohol is preferably selected from the group consisting of ethanol, isopropanol, n-propanol.
  • the glycol is preferably selected from the group consisting of glycerin, propylene glycol, 1 ,3-Propanediol, 1 ,2-Propanediol, 1 ,2-C5 to C10-alkanediols, butylene glycol or dipropylene glycol.
  • the products and preparations according to the presently claimed invention are for cosmetic and/or non-therapeutic use for personal care, skin protection, skin care, sun care, scalp protection, scalp care, hair care, nail care, in particular for the prevention and treatment of skin conditions, intolerant or sensitive skin, skin irritation, skin reddening, wheals, pruritis (itching), skin aging, wrinkle formation, loss of skin volume, loss of skin elasticity, piment spots, pigment abnormalities, skin dryness, flaking, greasiness, hypopigmentation and/or hyperpigmentation of the skin; or a preparation for animal care.
  • cosmetic compositions are preferably anti-ageing preparations, skin care emulsions, body oils, body lotions, cleansing lotions, face or body balms, after shave balms, after sun balms, deo emulsions, cationic emulsions, body gels, treatment creams, skin protection ointments, moisturizing gels, face and/or body moisturizers, light protective preparations (sunscreens), micellar water, hair sprays, color protection hair care products, skin lightning products, anti-dark-spot reparation, etc.
  • the cosmetic compositions include also make-ups, eye-care preparation, eye shadows, mascara, eyeliner, lip care preparation such as lip stick, lip gloss, mail care preparations, such as nail varnish, nail varnish removers.
  • compositions include BB creams (Blemish Balm creams or Beauty Balm creams), CC creams (Color Correcting creams), tinted moisturizers, primers, setting sprays, foundation powders, highlighters, bronzers, lip balms, after-sun gels, cooling sprays, scalp protection sprays, scalp serums, hair oils, leave-in hair treatments, body mists, and cleansing oils.
  • the sunscreen composition or cosmetic composition or cosmetic composition according to the presently claimed invention is applied to the skin, hair, scalp and/or nails in an adequate amount in such manner as is customary with sunscreen compositions or cosmetic compositions.
  • the liquid UV filter concentrates of the presently claimed invention or the UV filter concentrates obtained by the process of the presently claimed invention can also be incorporated into homecare products to prevent sun-induced degradation, fading, and material damage.
  • the UV filter concentrates impart UV protection to surfaces, helping to maintain the appearance, structural integrity, and longevity of treated surfaces. Such protection is especially valuable in products intended for cleaning, treating, or coating surfaces exposed to sunlight, including wood, furniture, textiles, automotive interiors, glass, and outdoor equipment.
  • UV filters By integrating UV filters into homecare formulations, these products offer an additional protective benefit beyond cleaning and conditioning, thereby enhancing product performance and preserving the quality of treated materials over time.
  • Examples of homecare products are surface cleaners, disinfectant wipes, kitchen cleaners, bathroom cleaners, glass cleaners, stainless steel polish, liquid detergents, powder detergents, fabric softeners, laundry boosters, stain removers, antibacterial laundry treatments, hand dishwashing liquids, automatic dishwasher detergents, rinse aids, dishwashing boosters, room fresheners, fabric refreshers, odor neutralizers, reed diffusers, air fresheners, wood polish and protectants, leather conditioners, carpet and upholstery cleaners, floor cleaners, protective coatings for furniture, UV-protective window treatments, antifog glass treatments, self-cleaning glass coatings, car wash and wax solutions, tire and trim protectants, UV-protective dashboard treatments, outdoor furniture protectants, patio and deck cleaners, shoe and leather protectants, anti-static treatments, textile treatments with UV protection, insect-repellent fabric treatments, pet-safe UV protection treatments, he liquid UV filter concentrates of the presently claimed invention or the UV filter concentrates obtained by the process of the presently claimed invention can also be incorporated into
  • liquid UV filter concentrates of the presently claimed invention or the UV filter concentrates obtained by the process of the presently claimed invention, are incorporated into cosmetic compositions in an amount of > 0.001% to ⁇ 2.0% by weight, preferably > 0.01% to ⁇ 0.75% by weight, and more preferably > 0.1% to ⁇ 0.5% by weight, based on the total weight of the cosmetic composition.
  • the liquid UV filter concentrates of the presently claimed invention, or the UV filter concentrates obtained by the process of the presently claimed invention are incorporated into personal care products in an amount of > 0.001% to ⁇ 2.0% by weight, preferably > 0.01% to ⁇ 0.75% by weight, and more preferably > 0.1% to ⁇ 0.5% by weight, based on the total weight of the personal care product.
  • the liquid UV filter concentrates of the presently claimed invention, or the UV filter concentrates obtained by the process of the presently claimed invention are incorporated into homecare products in an amount of > 0.001% to ⁇ 2.0% by weight, preferably > 0.01% to ⁇ 0.75% by weight, and more preferably > 0.1% to ⁇ 0.5% by weight, based on the total weight of the homecare product.
  • a process for preparing a UV filter concentrate which is liquid at room temperature comprising at least the steps of:
  • step (B) mixing the heated solution of step (A) with at least two different oil soluble organic UV filters UV2 and UV3, wherein the organic oil soluble UV filter UV2 has a melting point MP2 in the range of > 30 to ⁇ 130 °C and the organic oil soluble UV filter UV3 has a melting point MP3 in the range of > 30 to ⁇ 130 °C, at a temperature T2 in the range of > 50 to ⁇ 130 °C to obtain a heated mixture,
  • step (C) keeping the heated mixture of step (B) at a temperature T3 to obtain a UV filter concentrate; wherein the temperature T3 is lower than the highest melting point of the at least two different oil soluble organic UV filters UV2 and UV3 by a range between > 20 to ⁇ 70 °C.
  • the organic oil soluble UV filter UV2 comprises at least one organic UV filter UV2a and at least one organic UV filter UV2b, wherein the organic oil soluble UV filter UV2a has a melting point MP2a in the range of > 30 to ⁇ 70 °C and the organic oil soluble UV filter UV2b has a melting point MP2b in the range of > 71 to ⁇ 100 °C.
  • the at least one organic UV filter UV2a is selected from the group consisting of benzophenone-3, 4-methylbenzylidene camphor, diethylamino hydroxy benzoyl hexyl benzoate and benzophenone-8.
  • step (B) comprises the steps of
  • step (B1) mixing takes place at a temperature T21 in the range of > 50 to ⁇ 95 °C.
  • step (B3) mixing takes place at a temperature T23 in the range of > 100 to ⁇ 135 °C.
  • step (C) is carried out within a time period in the range of > 1 .0 to ⁇ 24 hours, preferably in the range of > 1.0 to ⁇ 5.0 hours.
  • step (D) allowing the UV filter concentrate of step (C) to cool to room temperature within a time period in the range of > 30 min to ⁇ 48 hours, preferably in the range of > 30 min to
  • a UV filter concentrate which is obtained by the process according to any one of embodiments 1 to 19.
  • a UV filter concentrate which is liquid at room temperature comprising
  • UV filter concentrate according to embodiment 21 , wherein the UV filter concentrate comprises the at least two different oil soluble organic UV filters UV2 and UV3 in an amount in the range of > 50 to ⁇ 90 wt.%, preferably in an amount in the range of > 60 to
  • the organic oil soluble UV filter UV2 comprises at least one organic UV filter UV2a and at least one organic UV filter UV2b, wherein the organic oil soluble UV filter UV2a has a melting point MP2a in the range of > 30 to ⁇ 70 °C and the organic oil soluble UV filter UV2b has a melting point MP2b in the range of > 71 to ⁇ 100 °C.
  • UV filter concentrate according to any one of embodiments 21 to 29, wherein the UV filter concentrate has a viscosity in the range of > 2500 to ⁇ 30000 mPa.s at 30 °C determined according to Brookfield DV-III with spindle CP51 at 2.0 rpm.
  • UV filter concentrate according to any one of embodiments 21 to 31 , wherein the UV filter concentrate further comprises at least one oil (d).
  • the at least one oil (d) is selected from the group consisting of Guerbet alcohols based on fatty alcohols having 6 to 18 carbon atoms, esters of linear Ce-C22-fatty acids with linear or branched Ce-C22-fatty alcohols or esters of branched Ce-Cis-carboxylic acids with linear or branched Ce-C22-fatty alcohols, esters of linear Ce-022-fatty acids with branched alcohols, esters of linear or branched C2-C10 diols with linear or branched Ce-022-fatty acids, esters of C18-C38- alkylhydroxy carboxylic acids with linear or branched Ce-C 22-fatty alcohols and/or C2-C5 alcohols, esters of linear and/or branched fatty acids with polyhydric alcohols and/or Guerbet alcohols, triglycerides based on Ge -Cw-fatty acids, liquid mono-/di-/triglyceride
  • the at least one oil (d) is selected from the group consisting of esters of linear or branched C2-C10 diols with linear or branched Ce-C22-fatty acids, esters of Cis-Css-alkylhydroxy carboxylic acids with linear or branched Ce-C 22-fatty alcohols and/or C2-C5 alcohols, esters of C2- Ci2-dicarboxylic acids with linear or branched alcohols having 1 to 22 carbon atoms or polyols having 2 to 10 carbon atoms and 2 to 6 hydroxyl groups, esters of benzoic acid with linear and/or branched C6-C22-alcohols, fatty acid esters with polyols, aliphatic or naphthenic hydrocarbons, glycerol mono-, di- and triesters and partial esters based on linear, branched, unsaturated or saturated C6/22 fatty acids, ricinoleic acid and 12-hydroxystearic
  • Caprylic/Capric/Palmitic/Stearic Triglyceride Caprylic/Capric/Stearic Triglyceride
  • the UV filter concentrate according to any one of embodiments 32 to 38, wherein the UV filter concentrate has viscosity is in the range of > 200 to ⁇ 1000 mPa.s at 20 °C determined according to Brookfield DV-III with spindle CP51 at 2.0 rpm.
  • the sunscreen composition or cosmetic composition or homecare composition according to embodiment 40 or 41 further comprising at least one antimicrobial agent.
  • Ethylhexyl salicylate was heated to 60 °C while stirring. Diethylamino hydroxy benzoyl hexyl benzoate was added, and the resulting mixture was heated under stirring to 80 °C. The mixture was kept at this temperature until it was clear. Bis-ethylhexyloxyphenol methoxyphenyl triazine was added, and the resulting mixture was heated under stirring to 95 °C. The mixture was kept at this temperature until it was clear. Ethylhexyl triazone was added, and the resulting mixture was heated under stirring to 120 °C. The mixture was kept at 120 °C for 30 minutes. When the mixture was clear, it was allowed to cool down to 100 °C and stirred at this temperature for 240 minutes. The resulting mixture was allowed to cool for 24 hours.
  • a clear liquid was obtained that had a slight yellowish tone.
  • the mixture did not contain any crystals.
  • the mixture had a viscosity of 6793 mPa.s at 30 °C determined according to Brookfield DV-III with spindle CP51 at 2.0 rpm.
  • the UV filter concentrate FC1a of the presently claimed invention was effectively incorporated in a wide array of different amounts into a homogeneous sunscreen composition by a conventional hot-in-hot manufacturing process.
  • Example 4 Cold-in-Cold manufacturing of sunscreen composition
  • composition of perfume oil 3 (PO3; amounts in %o by weight)
  • composition of perfume oil 5 (PO5; amounts in %o by weight)
  • Example 7 Antibacterial body lotion, sprayable, SPF 30
  • Example 8 Daily face cream; SPF 20
  • Example 17 Detergent liquid light duty
  • Example 18 Dishwash liquid manual
  • Example 20 Fabric softener concentrate, encapsulated
  • Example 21 Fabric softener concentrate, encapsulated
  • Example 22 Hand soap, liquid
  • Example 24 Cleaner, liquid, lactic acid
  • Example 25 Cleaner, liquid, citric acid
  • Example 26 ADW (Auto Dish Washing) gel
  • Example 30 Deodorant stick
  • Example 41 Sprayable Anti Cellulite Gel
  • Example 44 Hot-in-Cold manufacturing of sunscreen composition
  • the UV filter concentrate FC1a of the presently claimed invention was effectively incorporated in a wide array of different amounts into a homogeneous sunscreen composition by a conventional hot-in-cold manufacturing process.
  • Example 45 Preparation process of a UV filter concentrate containing at least one oil
  • Ethylhexyl salicylate and the oil were heated to 80 °C while stirring. Diethylamino hydroxy benzoyl hexyl benzoate, Bis-ethylhexyloxyphenol methoxyphenyl triazine and Ethylhexyl triazone were added, and the resulting mixture was heated under stirring to 100 °C. The mixture was kept at 100 °C. When the mixture was clear, it was stirred at 100 °C for 240 minutes. The resulting mixture was allowed to cool for 24 hours.
  • a clear liquid was obtained that had a slight yellowish tone.
  • the mixture did not contain any crystals.
  • the mixture had a viscosity of 585 mPa.s at 20 °C determined according to Brookfield DV-III with spindle CP51 at 2.0 rpm.

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Abstract

The presently claimed invention relates to a process for preparing a UV filter concentrate which is liquid. The UV filter concentrate comprises at least one oil soluble organic UV filter UV1 which is liquid at room temperature, and at least two different oil soluble organic UV filters UV2 and UV3 which are crystalline at room temperature. The UV filter concentrate is processed into a sunscreen composition or cosmetic composition or homecare composition.

Description

Liquid UV filter concentrate
Technical field
[0001] The presently claimed invention relates to a process for preparing a UV filter concentrate which is liquid. The UV filter concentrate comprises at least one oil soluble organic UV filter UV1 which is liquid at room temperature, and at least two different oil soluble organic UV filters UV2 and UV3 which are crystalline at room temperature. The UV filter concentrate is processed into a sunscreen composition or cosmetic composition or homecare composition.
Background Art
[0002] The negative effects of exposure of UV light are well-known. Prolonged exposure to sunlight causes damage such as sunburn to the skin and dries out hair making it brittle. When skin is exposed to UV light having a wavelength of from 290 nm to 400 nm, long term damage can lead to serious conditions such as skin cancer, the type of damage depending on the wavelength of the radiation.
[0003] UV light also contributes to aging by causing free radicals to form in the skin. Free radicals include, for example, singlet oxygen, hydroxyl radical, the superoxide anion, nitric oxide and hydrogen radicals. Free radicals attack DNA, membrane lipids and proteins, generating carbon radicals. These in turn react with oxygen to produce a peroxyl radical that can attack adjacent fatty acids to generate new carbon radicals. This cascade leads to a chain reaction producing lipid peroxidation products. Damage to the cell membrane results in loss of cell permeability, increased intercellular ionic concentration, and decreased ability to excrete or detoxify waste products. The result is a loss of skin elasticity and the appearance of wrinkles. This process is commonly referred to as photo-aging.
[0004] Moreover, UVA-radiation can trigger phototoxic or photo allergic skin reactions.
[0005] UV rays are classified according to their wavelength as UVA rays (320 to 400 nm) or UVB rays (280 to 320 nm).
[0006] To attenuate these negative effects of UV-radiation, i.e. for the purpose of protecting the skin and keratin materials against UV-radiation, anti-sun/sunscreen compositions comprising screening agents that are active in the UVA-range and in the UVB-range, i.e. within the full range of 280 nm to 400 nm, are generally used.
[0007] UV filters are compounds which have a pronounced absorption capacity for ultraviolet radiation. They are used especially in sunscreen compositions, cosmetic, dermatological and pharmacological compositions or sunscreen compositions, but also to improve the light fastness of industrial compositions, such as paints, varnishes, plastics, textiles, polymers such as, for example, polymers and copolymers of mono- and di-olefins, polystyrenes, polyurethanes, polyamides, polyesters, polyureas and polycarbonates, packaging materials and rubbers. [0008] The organic and inorganic UV filters are classified as UVA and UVB filters depending on the location of their absorption maxima; if a UV filter absorbs both UVA and UVB, it is referred to as a UVA/B broadband absorber or UVA/UVB broadband filter.
[0009] In order to achieve the desired maximum protection from UV-radiation sunscreen compositions or cosmetic, especially dermatological, and pharmacological compositions are formulated to contain a mixture of UV filters with varying concentrations and the choice of UV filters used is determined by the legislation within the country or economic area. For example, UV filters which can be used for the protection of skin are regulated in the USA by the America FDA via their OTC monograph system and are regulated in the European Union by the Cosmetic Regulation. Regulations covering the use of UV filters exist in other countries and regions as well. These regulations not only stipulate the filters which can be used but also fix a maximum usage level for each UV filter. Thus, there are limited UV filters available to achieve high efficacy with respect to both SPF and UVA protection.
[0010] The production of sunscreen composition typically involves either a cold-in-cold manufacturing process or a hot-in-cold manufacturing process or a hot-in-hot manufacturing process.
[0011] In the cold-in-cold manufacturing process, all ingredients are mixed at room temperature which is energy-efficient, but may limit the use of certain components, such as crystalline components. The hot-in-cold manufacturing process involves heating some ingredients to enhance their solubility and the cooling them before incorporation into the cold phase. This method can improve the stability and homogeneity of the sunscreen composition, but requires more energy due to the heating step. The hot-in-hot manufacturing process involves heating a water phase and an oil phase separately. When both phases reach the desired temperature, the phases are combined which is the “hot-in-hot” step. The step is critical and the mixing needs to be thorough in order to ensure proper homogenization.
[0012] Specifically, in the hot-in-cold manufacturing process or hot-in-hot manufacturing process, specific ingredients such as waxes, certain UV filters, or lipid components having higher melting points are heated. This heating enhances their solubility and allows for more uniform distribution in the final sunscreen composition. After heating, these components are cooled to integrate seamlessly into the cold phase, which typically contains water-based ingredients and other components that are stable at room temperature. This process ensures a stable emulsion, optimizing the efficacy and consistency of sunscreen compositions.
[0013] To achieve the desired SPF and UVA protection a combination of minimum two UV filters (one UVB and one UVA filter) is necessary. Especially for high SPF with the appropriate UVA protection the combination of several UV filters is needed of which a part is in powder form. Firstly, UV filters in powder form could pose safety risks due to their potential for inhalation or eye contact, leading to health hazards. Secondly, the powder form can create handling difficulties, such as issues with uniform mixing and dissolving which may affect the consistency and efficacy of the sunscreen composition. Additionally, powders can be messy and less convenient to work with, complicating the manufacturing process.
[0014] Moreover, the use of UV filter in powder form for manufacturing sunscreen compositions can be more energy-intensive compared to the use of liquid ones. UV filters in powder form require additional steps for safe and effective handling, such as protective equipment and specialized mixing processes to ensure homogeneity. In contrast, liquid UV filter mixtures simplify the manufacturing process, leading to reduces labor, time, and energy expenditures. This efficiency translates to cost savings and potentially safer, more streamlined production workflows.
[0015] Processing UV filters in powder form is less energy efficient due to several factors. Firstly, it often requires additional mechanical process to ensure proper mixing and heating for proper dissolution, which consume more energy. Furthermore, the required safety measures, such as ventilation systems to prevent inhalation risks, add to the overall energy usage. In contrast, liquid mixtures are generally simpler to handle and integrated into sunscreen compositions, leading to lower energy consumption in the manufacturing process.
[0016] Thus, there is a need to provide liquid UV filter compositions which provides UVB and UVA protection and can be easily and safely incorporated into a sunscreen composition.
[0017] It is therefore one object of the presently claimed invention to remedy the disadvantages of the prior art and to provide a process for preparing a liquid UV filter mixture which can be easily and safely incorporated into sunscreen compositions to obtain sunscreen compositions with a broad spectrum of sun protection factors by a cold-in-cold manufacturing process or a hot-in-cold manufacturing process or a hot-in-hot manufacturing process.
[0018] Surprisingly, it has been found that a liquid UV filter composition which can be easily and safely incorporated into sunscreen compositions to obtain sunscreen compositions with a broad spectrum of sun protection factors by a cold-in-cold manufacturing process or a hot-in-cold manufacturing process or a hot-in-hot manufacturing process can be obtained by a process, wherein at least one UV filter which is liquid at room temperature is mixed with at least two different oil soluble organic UV filters which are crystalline at room temperature according to a specific temperature control regime, wherein the temperature is lower than the highest melting point of the at least two different oil soluble organic UV filters UV2 and UV3 by a range between > 20 to < 70 °C. Thus, the temperature is lower by at least 20 °C.
[0019] The problem is solved by the subject matter of the independent patent claims. Further aspects of the presently claimed invention are however also apparent from the wording of the dependent patent claims, the following detailed description in conjunction with the accompanying examples and figures.
Summary of the invention [0020] Hence, the presently claimed invention is in a first aspect related to a process for preparing a UV filter concentrate which is liquid at room temperature comprising at least the steps of:
(A) heating at least one oil soluble organic UV filter UV1 which is liquid at room temperature to a temperature T1 in the range of > 40 to < 75 °C to obtain a heated solution,
(B) mixing the heated solution of step (A) with at least two different oil soluble organic UV filters UV2 and UV3, wherein the organic oil soluble UV filter UV2 has a melting point MP2 in the range of > 30 to < 130 °C and the organic oil soluble UV filter UV3 has a melting point MP3 in the range of > 30 to < 135 °C, preferably 130 °C, at a temperature T2 in the range of > 50 to < 135 °C, preferably 130 °C, to obtain a heated mixture,
(C) keeping the heated mixture of step (B) at a temperature T3 to obtain a UV filter concentrate; wherein the temperature T3 is lower than the highest melting point of the at least two different oil soluble organic UV filters UV2 and UV3 by a range between > 20 to < 70 °C.
[0021] In a second aspect, the presently claimed invention is directed to a UV filter concentrate which is obtained by the process according to the presently claimed invention and a UV filter concentrate which is liquid at room temperature comprising (a) at least one oil soluble organic UV filter UV1 which is liquid at room temperature, and (b) at least two different oil soluble organic UV filters UV2 and UV3, wherein the organic oil soluble UV filter UV2 has a melting point MP2 in the range of > 30 to < 130 °C and the organic oil soluble UV filter UV3 has a melting point MP3 in the range of > 30 to < 135 °C, preferably 130 °C; wherein the UV filter concentrate comprises the at least two different oil soluble organic UV filters UV2 and UV3 in an amount in the range of > 40 to < 94 wt.%, based on the total weight of the UV filter concentrate.
[0022] In yet another aspect, the presently claimed invention is directed to a sunscreen composition or cosmetic composition or homecare composition comprising at least one UV filter concentrate according to the presently claimed invention.
[0023] The presently claimed invention is associated with at least one of the following advantages:
• The use of the liquid UV filter concentrates of the presently claimed invention in the process of preparing a sunscreen composition reduces safety risks.
• The use of the liquid UV filter concentrates of the presently claimed invention in the process of preparing a sunscreen composition improves handling by minimizing additional steps for safe and effective handling, such as protective equipment and specialized mixing processes to ensure homogeneity.
• The process of the presently claimed invention translates to cost savings and a potentially safer, more streamlined production workflow.
• The liquid UV filter concentrates of the presently claimed invention can be processed into a sunscreen composition with a broad spectrum of SPF, in particular offering the potential of enhancing the sun protection factor by increasing the concentration of active ingredient.
• The liquid UV filters mix more evenly within formulations and thereby ensure uniform distribution of UV filters in the final product and consistent protection. The primary application of the liquid UV filter concentrates of the presently claimed invention lies in their incorporation into sunscreen compositions. However, their advantageous properties in the manufacturing process also render them suitable for use in other cosmetic, personal care, and homecare products that require lower UV filter concentrations. In these applications as well, the liquid UV filter concentrates of the presently claimed invention enhance manufacturing efficiency, ensure a safer production process, minimize material costs, and further reduce handling and exposure risks for production personnel.
Detailed description of the invention
[0024] In the context of the presently claimed invention, the following general meanings apply:
[0025] The terms “comprising”, “including”, and “containing” are to be understood as open- ended terms and mean that the named components following said term are essential but not “limited to”, and other components may be added and are still embraced by the presently claimed invention.
[0026] The term “consisting of” as used according to the presently claimed invention means that the total amount of components (a) and (b) adds up to 100 % by weight, based on the total weight of the sunscreen composition or cosmetic composition or cosmetic composition, and signifies that the subject matter is closed-ended and can only include the limitations that are expressly recited.
[0027] Whenever reference is made to “comprising” it is intended to cover both meanings as alternatives, that is the meaning can be either “comprising” or “consisting of’ unless the context dictates otherwise.
[0028] The term “at least one ... compound” means that the sunscreen composition or cosmetic composition or cosmetic composition according to the presently claimed invention can comprise either one of said subsequently described individual compound or a mixture of two, three, four, five, six or even more different of said subsequently compounds.
[0029] The term “optionally” means that the subsequently described compound may but need not to be present in the composition, and that the description includes embodiments, where the compound is included or embodiments, where the compound is absent.
[0030] A “sunscreen composition” in the context of the presently claimed invention, also known as sunblock, sun cream or suntan lotion, is a photoprotective topical composition for the skin including UV filter compounds that absorbs or reflects some of the sun’s ultraviolet (UV) radiation and thus helps protect against sunburn and most importantly prevent skin cancer. Sunscreens come as lotions, sprays, gels, foams (such as an expanded foam lotion or whipped lotion), sticks, powders and other topical compositions. UV-absorbing compounds are used not only in sunscreen, but also in other personal care compositions, such as lipstick, shampoo, hair spray, body wash, toilet soap, and insect repellent. “Personal care products” in the context of the presently claimed invention are consumer products intended for cleansing, protecting, or enhancing the appearance of the body, including skin, hair, oral cavity, and intimate areas. These products are generally used for hygiene, grooming, and body care, and may provide functional or aesthetic benefits.
[0031] The term “cosmetic compositions” in the context of the presently claimed invention are compositions for cosmetic purposes which contain a UV absorber in order to protect skin or hair against UV-radiation. In addition to providing photo-protection, the cosmetic compositions according to the presently claimed invention are useful for providing anti-aging benefits to skin, whitening or preventing darkening of skin, improving appearance of skin, diminishing the visible signs of skin aging and improving skin’s radiance and firmness.
[0032] The term “homecare compositions” in the context of the present invention are the essentials for daily care and cleaning purpose in households. They are used for maintaining hygiene and a good aura of the homes. The home care products generally include laundry detergents (powder, liquid and tablet), fabric conditioners, dishwashing detergents (liquid and tablet), hard floor and surface cleaners, glass cleaners, carpet cleaners, oven cleaners, air fresheners, disinfectants, stain removers, car wash products. These products are usually manufactured in the form of a liquid, powder, spray, granules and others. Such sunscreen containing formulations prevent premature photodamage and photobleaching to surfaces and the homecare formulation itself.
[0033] The term "or" or "and/or" is used as a function word to indicate that two words or phrases are to be taken together or separately.
[0034] The endpoints of all ranges directed to the same component or property are inclusive and independently combinable.
[0035] In one aspect, the presently claimed invention is directed to a process for preparing a UV filter concentrate which is liquid at room temperature comprising at least the steps of:
(A) heating at least one oil soluble organic UV filter UV1 which is liquid at room temperature to a temperature T1 in the range of > 40 to < 75 °C to obtain a heated solution,
(B) mixing the heated solution of step (A) with at least two different oil soluble organic UV filters UV2 and UV3, wherein the organic oil soluble UV filter UV2 has a melting point MP2 in the range of > 30 to < 130 °C and the organic oil soluble UV filter UV3 has a melting point MP3 in the range of > 30 to < 135 °C, preferably 130 °C, at a temperature T2 in the range of > 50 to < 135 °C, more preferably at a temperature T2 in the range of > 50 to < 130 °C, even more preferably at a temperature T2 in the range of > 50 to < 130 °C, to obtain a heated mixture,
(C) keeping the heated mixture of step (B) at a temperature T3 to obtain a UV filter concentrate; wherein the temperature T3 is lower than the highest melting point of the at least two different oil soluble organic UV filters UV2 and UV3 by a range between > 20 to < 70 °C. Thus, the temperature T3 is lower than the highest melting point of the at least two different oil soluble organic UV filters UV2 and UV3 by a value in a range between > 20 to < 70 °C. It is thus advantageous and surprisingly possible to keep the heated mixture of step (B) in step (C) at a temperature T3 which is significantly lower than the melting points of the at least two different oil soluble organic UV filters.
[0036] Preferably, the temperature T3 is lower than the highest melting point of the at least two different oil soluble organic UV filters UV2 and UV3 by a range between > 20 to < 50 °C, more preferably by a range between > 20 to < 40 °C. Preferably, the temperature T3 is lower than the highest melting point of the at least two different oil soluble organic UV filters UV2 and UV3 by at least 30 °C, more preferably by at least 40 °C, even more preferably by at least 50 °C.
[0037] Preferably, the temperature T3 is in the range of > 60 to < 110 °C, preferably the temperature T3 is in the range of > 80 to < 105 °C.
[0038] Preferably, the UV filter concentrate of the presently claimed invention has a viscosity in the range of > 2500 to < 30000 mPa.s at 30 °C, more preferably in the range of > 3500 to < 25000 mPa.s at 30 °C, even more preferably in the range of > 4500 to < 21000 mPa.s at 30 °C, most preferably in the range of > 4500 to < 20000 mPa.s at 30 °C determined according to Brookfield DV-III with spindle CP51 at 2.0 rpm.
[0039] The viscosity of liquids is crucial in industrial and manufacturing processes, when these liquids are transported through pipes. When the viscosity is too high, i.e., the liquid is too thick, energy is required to pump the liquid through the pipes which results in higher operational costs. Moreover, strain is put on the pump systems and associated infrastructure which increases the wear and tear of the pipe system. The viscosity of the UV filter concentrate of the presently claimed invention allows for easy flow through pipes without causing undue strain on the pumping system.
[0040] Preferably the step (B) is carried out within a time period in the range of > 5 min to < 24 hours, more preferably within a time period in the range of > 10 min to < 12 hours, even more preferably within a time period in the range of > 30 min to < 6 hours, yet more preferably within a time period in the range of > 2 to 3 < hours.
[0041] Preferably the at least one oil soluble organic UV filter UV1 which is liquid at room temperature is selected from the group consisting of homosalate, octocrylene, 2-ethylhexyl methoxycinnamate, 2-ethylhexyl salicylate, polyacrylamidomethyl benzylidene camphor, menthyl anthranilate, 2-ethylhexyl dimethyl PABA, TEA-salicylate, polysilicone- 15, and isoamyl p- methoxycinnamate, more preferably the at least one oil soluble organic UV filter UV1 which is liquid at room temperature is selected from the group consisting of 2-ethylhexyl methoxycinnamate, 2-ethylhexyl salicylate, and isoamyl p-methoxycinnamate.
[0042] Preferably the at least two different oil soluble organic UV filters UV2 and UV3 are selected from the group consisting of diethylhexyl butamido triazone, benzophenone-3, drometrizole trisiloxane, 4-methylbenzylidene camphor, diethylamino hydroxy benzoyl hexyl benzoate, benzophenone-8, butyl methoxydibenzoylmethane, bis-ethylhexyloxyphenol methoxyphenyl triazine, methoxypropylamino cyclohexenylidene ethoxyethylcyanoacetate and ethylhexyl triazone.
[0043] Preferably, the organic oil soluble UV filter UV2 comprises at least one organic UV filter UV2a and at least one organic UV filter UV2b, wherein the organic oil soluble UV filter UV2a has a melting point MP2a in the range of > 30 to < 70 °C and the organic oil soluble UV filter UV2b has a melting point MP2b in the range of > 71 to < 100 °C.
[0044] Preferably, the at least one organic UV filter UV2a is selected from the group consisting of benzophenone-3, 4-methylbenzylidene camphor, diethylamino hydroxy benzoyl hexyl benzoate and benzophenone-8, more preferably the at least one organic UV filter UV2a is diethylamino hydroxy benzoyl hexyl benzoate.
[0045] Preferably, the at least one organic UV filter UV2b is selected from the group consisting of butyl methoxydibenzoylmethane, diethylhexyl butamido triazone, bis-ethylhexyloxyphenol methoxyphenyl triazine, drometrizole trisiloxane and methoxypropylamino cyclohexenylidene ethoxyethylcyanoacetate, more preferably the at least one organic UV filter UV2b is bis- ethylhexyloxyphenol methoxyphenyl triazine.
[0046] Preferably, the organic oil soluble UV filter UV3 has a melting point MP3 in the range of > 101 to < 135 °C, preferably 130 °C.
[0047] Preferably, the organic oil soluble UV filter UV3 is ethylhexyl triazone.
[0048] Preferably, the step (B) comprises the steps of
(B1) mixing the heated solution of step (A) with at least one oil soluble organic UV filter UV2a which has a melting point MP2a in the range of > 30 to < 70 °C to obtain a heated mixture 1 , (B2) mixing the heated mixture 1 of step (B1) with at least one oil soluble organic UV filter UV2b which has a melting point MP2b in the range of > 71 to < 100 °C to obtain a heated mixture 2, (B3) mixing the heated mixture 2 of step (B2) with at least one oil soluble organic UV filter UV3 which has a melting point MP3 in the range of > 101 to < 130 °C at a temperature T23 in the range of > 80 to < 130 °C to obtain a heated mixture 3.
[0049] Preferably, in step (B1) mixing takes place at a temperature T21 in the range of > 50 to < 95 °C. Preferably, in step (B2) mixing takes place at a temperature T22 in the range of > 80 to < 100 °C. Preferably, in step (B3) mixing takes place at a temperature T23 in the range of > 100 to < 135 °C.
[0050] Preferably, steps (A), (B) and (C) are performed in a mixer such as a vessel that is equipped with a stirrer in order to obtain uniform mixing of all components. The vessel is preferably a container that holds the components and can be in various shapes and sizes. The stirrer can be an agitator or mixing blade which is engineered to create a homogeneous mixture by moving the components in the vessel in a controlled manner. The design of the stirrer can vary significantly and can be simple paddle-like or a more complex structure featuring multiple blades or specialized shapes to enhance mixing efficiency. The vessel is preferably equipped with an integrated heating system, which can be an external jacket or internal coils, allowing for precise temperature control.
[0051] Preferably step (C) is carried out within a time period in the range of > 1 to < 24 hours, more preferably in the range of > 1 to < 5 hours, even more preferably within a time period in the range of > 1 to < 3 hours.
[0052] Preferably the process further comprises the step of: (D) allowing the UV filter concentrate of step (C) to cool to room temperature within a time period in the range of > 30 min to < 48 hours, preferably in the range of > 30 min to < 24 hours, more preferably in the range of > 30 min to < 12 hours, even more preferably in the range of > 30 min to < 6 hours.
[0053] Preferably, the UV filter concentrate of the presently claimed invention does not contain any oil soluble organic UV filters in its crystalline form. Preferably, the UV filter concentrate of the presently claimed invention remains liquid and does not show any crystals at room temperature for a period of at least 3 months, more preferably at least 6 months, even more preferably at least 12 months, preferably when the UV filter concentrate is stored in a closed container.
[0054] In a preferred embodiment, the UV filter concentrate of the presently claimed invention contains at least one alkyl cellulose, preferably ethyl cellulose, in an amount in the range of > 0.01 wt.-% to < 1.0 wt.-%, more preferably in the range of > 0.02 wt.-% to < 0.5 wt.-%, even more preferably in the range of > 0.02 wt.-% to < 0.3 wt.-%, based on the total weight of the UV filter concentrate. It was found that the at least one alkyl cellulose effectively prevents crystallization of the UV filters so that the UV filter concentrate that contains the at least one alkyl cellulose can be stored for even longer periods of time that exceed 12 months.
[0055] Alkyl cellulose, and in particular ethyl cellulose, is a derivative of cellulose in which one or more of the hydroxyl groups on the glucose monomers comprising the cellulose backbone are etherified with alkyl groups. Ethyl cellulose is characterized by its degree of substitution (DS), which refers to the average number of hydroxyl groups replaced by ethyl groups per glucose unit. The DS for ethyl cellulose used in this application preferably ranges from 1.0 to 3.0, indicating that each glucose monomer can be substituted with one to three ethyl groups. In a preferred embodiment, the ethyl cellulose has a weight average molecular weight in the range from > 10,000 to < 300,000 g/mol. In a preferred embodiment, ethyl cellulose can be sourced from both natural and fossil-based origins. Preferably, the ethyl cellulose is sourced from natural sources. Natural sources include purified cellulose obtained from cotton or wood pulp, which is then chemically modified to introduce ethyl groups. Suppliers of ethyl cellulose for industrial use include, but are not limited to, companies such as Dow Chemical Company, Sigma-Aldrich, and Ashland Inc. (Antaron™ Eco).
[0056] In a preferred embodiment, the at least one alkyl cellulose, preferably ethyl cellulose, is added in step (A). [0057] Preferably, the ratio of the sum of weight percentages of at least two different oil soluble organic UV filters UV2 and UV3 to the weight percentage of the at least one oil soluble organic UV filter UV1 is in the range of > 3.0:1.0 to < 20.0:1.0, more preferably in the range of > 4.0:1.0 to < 7.0:1.0, wherein the weight percentages are based on the total weight of the UV filter concentrate.
[0058] In another aspect the presently claimed invention is directed to a UV filter concentrate which is liquid at room temperature comprising
(a) at least one oil soluble organic UV filter UV1 which is liquid at room temperature, and
(b) at least two different oil soluble organic UV filters UV2 and UV3, wherein the organic oil soluble UV filter UV2 has a melting point MP2 in the range of > 30 to < 130 °C and the organic oil soluble UV filter UV3 has a melting point MP3 in the range of > 30 to < 130 °C; wherein the UV filter concentrate comprises the at least two different oil soluble organic UV filters UV2 and UV3 in an amount in the range of > 40 to < 94 wt.%, based on the total weight of the UV filter concentrate.
[0059] In another aspect the presently claimed invention is directed to a UV filter concentrate which is liquid at room temperature comprising
(a) > 10 to < 50 wt.% of at least one oil soluble organic UV filter UV1 which is liquid at room temperature, and
(b) at least two different oil soluble organic UV filters UV2 and UV3, wherein the organic oil soluble UV filter UV2 has a melting point MP2 in the range of > 30 to < 130 °C and the organic oil soluble UV filter UV3 has a melting point MP3 in the range of > 30 to < 130 °C; wherein the UV filter concentrate comprises the at least two different oil soluble organic UV filters UV2 and UV3 in an amount in the range of > 40 to < 94 wt.%, preferably > 50 to < 90 wt.%, based on the total weight of the UV filter concentrate.
[0060] In another aspect the presently claimed invention is directed to a UV filter concentrate which is liquid at room temperature consisting of
(a) > 10 to < 50 wt.% of at least one oil soluble organic UV filter UV1 which is liquid at room temperature, and
(b) at least two different oil soluble organic UV filters UV2 and UV3, wherein the organic oil soluble UV filter UV2 has a melting point MP2 in the range of > 30 to < 130 °C and the organic oil soluble UV filter UV3 has a melting point MP3 in the range of > 30 to < 130 °C; wherein the UV filter concentrate comprises the at least two different oil soluble organic UV filters UV2 and UV3 in an amount in the range of > 40 to < 94 wt.%, preferably > 50 to < 90 wt.%, based on the total weight of the UV filter concentrate.
[0061] In another aspect the presently claimed invention is directed to a UV filter concentrate which is liquid at room temperature consisting of
(a) > 15 to < 40 wt.% of at least one oil soluble organic UV filter UV1 which is liquid at room temperature, and (b) at least two different oil soluble organic UV filters UV2 and UV3, wherein the organic oil soluble UV filter UV2 has a melting point MP2 in the range of > 30 to < 130 °C and the organic oil soluble UV filter UV3 has a melting point MP3 in the range of > 30 to < 130 °C; wherein the UV filter concentrate comprises the at least two different oil soluble organic UV filters UV2 and UV3 in an amount in the range of > 60 to < 85 wt.%, based on the total weight of the UV filter concentrate.
[0062] The term “UV filter concentrate” in the context of the presently claimed invention refers to a highly concentrated formulation of UV filters that is designed to be incorporated into sunscreen compositions. The UV filter concentrate of the presently claimed invention can be seamlessly incorporated into a wide variety of different sunscreen compositions with a broad spectrum of SPF and other properties like water resistance, pleasant skin feel and compatibility with other beneficial skincare ingredients.
[0063] Preferably, the UV filter concentrate of the presently claimed invention comprises the at least two different oil soluble organic UV filters UV2 and UV3 in an amount in the range of > 50 to < 90 wt.%, preferably in an amount in the range of > 60 to < 85 wt.%, based on the total weight of the UV filter concentrate.
[0064] Preferably, the UV filter concentrate of the presently claimed invention further comprises at least one additional UV filter selected from the group consisting of 2-ethylhexyl salicylate, ethylhexyl triazone, butyl methoxydibenzoylmethane, terephthalylidene dibornanesulphonic acid and salts, hexyl 2-(4-diethylamino-2-hydroxybenzoyl)benzoate, menthyl anthranilate, 2,2'-(1 ,4- phenylene)bis-[1 H-benzimidazole-4,5-disulfonic acid] disodium salt, methoxy propylamino cyclohexenylidene ethoxyethyl cyanoacetate, octocrylene, homosalate, octisalate, 2-ethylhexyl p-dimethylaminobenzoate, triethanolamine salicylate, 2-ethylhexyl p-methoxycinnamate, isoamyl p-methoxycinnamate, 2-phenylbenzimidazole sulfonic acid and its salts, 3-(4'- methylbenzylidene)-d,l-camphor, 4,4'-[(6-[4-(1 ,1-dimethyl)aminocarbonyl)phenylamino]-1 ,3,5- triazine-2,4-diyl)diimino]bis(benzoic acid 2-ethylhexyl ester), benzylidenemalonate-polysiloxane, tris(2-ethylhexyl)4,4',4"-(1 ,3,5-triazine-2,4,6-triyltriimino)tribenzoate, bis-ethylhexyloxyphenol methoxyphenyl triazine, 2-hydroxy-4-methoxybenzophenone-5-sulfonic acid and its salts, 2- hydroxy-4-methoxybenzophenone, phenol, -(2H-benzotriazol-2-yl-4-methyl-6-(2-methyl-3- (1 ,3,3,3-tetramethyl-1-(trimethylsilyl)oxy)disiloxanyl)propyl), 2,2'-methylene-bis(6-(2H- benztriazol-2-yl)-4-1 ,1 ,3,3-tetramethylbutyl)-phenol, tris-biphenyl triazine, and 5, 6, 5', 6'- tetraphenyl-3,3'-(1 ,4-phenylene)bis(1 ,2,4-triazine). After the manufacturing of the liquid UV filter concentrate of the presently claimed invention, an additional UV filter is incorporated into the UV filter concentrate. This step allows for greater formulation flexibility, enabling the adjustment of UV protection levels as needed while maintaining the superior processing and handling benefits of the concentrate.
[0065] Preferably, the component (a) is present in an amount in the range of > 15 to < 40 wt.%, even more preferably in the range of > 12 or 15 to < 40 wt.%, yet even more preferably in an amount in the range of > 12 or 15 to < 30 wt.%, based on the total weight of the UV filter concentrate. [0066] The at least one oil-soluble organic UV filter UV1 can be partially replaced by at least one oil (d), provided that the overall sun protection activity of the formulation is maintained. This allows for greater formulation flexibility while preserving the efficacy of the UV protection. The at least one oil (d) can contribute to improved spreadability, sensory properties, and emolliency without compromising the stability or photoprotective function of the composition. The selection and concentration of the at least one oil (d) should be carefully optimized to ensure that the sun protection factor (SPF) and UVA absorption characteristics remain within the desired range, thereby maintaining the high-performance attributes of the liquid UV filter concentrate of the presently claimed invention.
[0067] In a preferred embodiment, the UV filter concentrate of the presently claimed invention comprises
(a) at least one oil soluble organic UV filter UV1 which is liquid at room temperature,
(b1) at least one organic oil soluble UV filter UV2a which has a melting point MP2a in the range of > 30 to < 70 °C,
(b2) at least one organic oil soluble UV filter UV2b which has a melting point MP2b in the range of > 71 to < 100 °C,
(c) at least one organic oil soluble UV filter UV3 which has a melting point MP3 in the range of > 101 to < 130 °C.
[0068] In a preferred embodiment, the UV filter concentrate of the presently claimed invention comprises or consists of
(a) > 10.0 to < 30 wt.% of at least one oil soluble organic UV filter UV1 which is liquid at room temperature,
(b1) > 20 to < 45 wt.% of at least one organic oil soluble UV filter UV2a which has a melting point MP2a in the range of > 30 to < 70 °C,
(b2) > 20 to < 45 wt.% of at least one organic oil soluble UV filter UV2b which has a melting point MP2b in the range of > 71 to < 100 °C,
(c) > 10.0 to < 30 wt.% of at least one organic oil soluble UV filter UV3 which has a melting point MP3 in the range of > 101 to < 130 °C, and at least one alkyl cellulose, preferably ethyl cellulose, in an amount in the range of > 0.00 wt.-% to < 1.0 wt.-%, more preferably in the range of > 0.005 wt.-% to < 0.5 wt.-%, even more preferably in the range of > 0.01 wt.-% to < 0.3 wt.-%.
[0069] In a preferred embodiment, the component (a) is 2-ethylhexyl salicylate, the component (b1) is diethylamino hydroxy benzoyl hexyl benzoate, the component (b2) is bisethylhexyloxyphenol methoxyphenyl triazine and the component (c) is ethylhexyl triazone.
[0070] Preferably, the component (a) is present in an amount in the range of > 10.0 to < 30 wt.%, preferably in an amount in the range of > 10.0 to < 20 wt.%, the component (b1) is present in an amount in the range of > 20 to < 45 wt.%, preferably in an amount in the range of > 20.0 to < 35 wt.%, the component (b2) is present in an amount in the range of > 20 to < 45 wt.%, preferably in an amount in the range of > 20.0 to < 35 wt.%, and the component (c) is present in an amount in the range of > 10.0 to < 30 wt.%, preferably in an amount in the range of > 10.0 to < 20 wt.%.
[0071] In one embodiment, the presently claimed invention is directed to a sunscreen composition or cosmetic composition or homecare composition comprising at least one UV filter concentrate as described above or the at least one UV filter concentrate obtained by the process as described above and at least one filter selected from the group consisting of 2-ethylhexyl salicylate, ethylhexyl triazone, butyl methoxydibenzoylmethane, terephthalylidene dibornanesulphonic acid and salts, hexyl 2-(4-diethylamino-2-hydroxybenzoyl)benzoate, menthyl anthranilate, 2,2'-(1 ,4-phenylene)bis-[1 H-benzimidazole-4,5-disulfonic acid] disodium salt, methoxy propylamino cyclohexenylidene ethoxyethyl cyanoacetate, octocrylene, homosalate, octisalate, 2-ethylhexyl p-dimethylaminobenzoate, triethanolamine salicylate, 2-ethylhexyl p- methoxycinnamate, isoamyl p-methoxycinnamate, 2-phenylbenzimidazole sulfonic acid and its salts, 3-(4'-methylbenzylidene)-d,l-camphor, 4,4'-[(6-[4-(1 , 1- dimethyl)aminocarbonyl)phenylamino]-1 ,3,5-triazine-2,4-diyl)diimino]bis(benzoic acid 2- ethylhexyl ester), benzylidenemalonate-polysiloxane, tris(2-ethylhexyl)4,4',4"-(1 ,3,5-triazine- 2,4,6-triyltriimino)tribenzoate, bis-ethylhexyloxyphenol methoxyphenyl triazine, 2-hydroxy-4- methoxybenzophenone-5-sulfonic acid and its salts, 2-hydroxy-4-methoxybenzophenone, phenol, -(2H-benzotriazol-2-yl-4-methyl-6-(2-methyl-3-(1 , 3,3, 3-tetramethyl-1-
(trimethylsilyl)oxy)disiloxanyl)propyl), 2,2'-methylene-bis(6-(2H-benztriazol-2-yl)-4-1 ,1 ,3,3- tetramethylbutyl)-phenol, tris-biphenyl triazine, and 5,6,5',6'-tetraphenyl-3,3'-(1 ,4- phenylene)bis(1 ,2,4-triazine).
[0072] Preferably, the at least one UV filter concentrate as described above or the at least one UV filter concentrate obtained by the process as described above comprises at least one oil (d). More preferably the at least one oil (d) is selected from the group consisting of Guerbet alcohols based on fatty alcohols having 6 to 18 carbon atoms, esters of linear Ce-C22-fatty acids with linear or branched Ce-022-fatty alcohols or esters of branched Ce-Cis-carboxylic acids with linear or branched Ce-C 22-fatty alcohols, esters of linear Ce-C22-fatty acids with branched alcohols, esters of linear or branched C2-C10 diols with linear or branched Ce-C22-fatty acids, esters of C18-C38- alkylhydroxy carboxylic acids with linear or branched Ce-022-fatty alcohols and/or C2-C5 alcohols, esters of linear and/or branched fatty acids with polyhydric alcohols and/or Guerbet alcohols, triglycerides based on Ge -Cw-fatty acids, liquid mono-/di-/triglyceride mixtures based on Ce-Cis- fatty acids, esters of Ce- C22-fatty alcohols and/or Guerbet alcohols with aromatic carboxylic acids, esters of C2- Ci2-dicarboxylic acids with linear or branched alcohols having 1 to 22 carbon atoms or polyols having 2 to 10 carbon atoms and 2 to 6 hydroxyl groups, vegetable oils, branched primary alcohols, substituted cyclohexanes, linear and branched Ce-022-fatty alcohol carbonates, Guerbet carbonates based on fatty alcohols having 6 to 18, esters of benzoic acid with linear and/or branched C6-C22-alcohols, linear or branched, symmetrical or a symmetrical dialkyl ethers having 6 to 22 carbon atoms per alkyl group, ring-opening products of epoxidized fatty acid esters with polyols, aliphatic or naphthenic hydrocarbons, fatty acid esters with polyols, aliphatic or naphthenic hydrocarbons, products of the addition of 2 to 30 mol ethylene oxide and/or 0 to 5 mol propylene oxide onto linear C8-22 fatty alcohols, onto C12-22 fatty acids and onto alkyl phenols containing 8 to 15 carbon atoms in the alkyl group, C12/18 fatty acid monoesters and diesters of addition products of 1 to 30 mol ethylene oxide onto glycerol, glycerol mono-, di- and triesters and sorbitan mono- and diesters of saturated and unsaturated fatty acids containing 6 to 22 carbon atoms and ethylene oxide addition products thereof, addition products of 15 to 60 mol ethylene oxide onto castor oil and/or hydrogenated castor oil, addition products of 2 to 15 mol ethylene oxide onto castor oil and/or hydrogenated castor oil, petrolatum, squalane, squalene, isohexadecane, dialkylcyclohexanes, esters of and partial esters based on linear, branched, - unsaturated or saturated C6/22 fatty acids, ricinoleic acid and 12-hydroxystearic acid and glycerol, polyglycerol, pentaerythritol, dipentaerythritol and dialkyl ethers of isosorbide. Even more preferably, the at least one oil (d) is selected from the group consisting of esters of linear or branched C2-C10 diols with linear or branched Ce-C22-fatty acids, esters of Cis-Css-alkylhydroxy carboxylic acids with linear or branched Ce-C22-fatty alcohols and/or C2-C5 alcohols, esters of C2- Ci2-dicarboxylic acids with linear or branched alcohols having 1 to 22 carbon atoms or polyols having 2 to 10 carbon atoms and 2 to 6 hydroxyl groups, esters of benzoic acid with linear and/or branched C6-C22-alcohols, fatty acid esters with polyols, aliphatic or naphthenic hydrocarbons, glycerol mono-, di- and triesters and partial esters based on linear, branched, unsaturated or saturated C6/22 fatty acids, ricinoleic acid and 12-hydroxystearic acid and glycerol, polyglycerol, pentaerythritol, dipentaerythritol. Most preferably, the at least one oil (d) is selected from the group consisting of ethylhexyl acetoxystearate, propanediol dicaprylate, propanediol caprylate, diethylhexyl 2,6-naphthalate, diisopropyl adipate and caprylic/capric triglyceride.
[0073] Preferably the at least one oil (d) is a fatty acid ester which is selected from the group consisting of C12 - C15 Alkyl Benzoate, Caprylic/Capric Triglyceride, Caprylic/Capric/Lauric Triglyceride, Caprylic/Capric/Linoleic Triglyceride, Caprylic/Capric/Myristic/Stearic Triglyceride, Caprylic/Capric/Palmitic/Stearic Triglyceride, Caprylic/Capric/Stearic Triglyceride, Caprylic/Capric/Succinic Triglyceride, Caprylyl Caprylate, Cetearyl Ethylhexanoate, Cetearyl Isononanoate, Cetearyl Nonanoate, Coco-Caprylate, Coco-Caprate, Coco-Caprylate/Caprate, Decyl Cocoate, Decyl Oleate, Dicaprylyl Carbonate, Diethyl Succinate, Diethylhexyl 2,6- Naphthalate, Diethylhexyl Carbonate, Dibutyl Adipate, Diisopropyl Adipate, Dipropylheptyl Carbonate, Ethyl Laurate, Ethylhexyl Isononanoate, Ethylhexyl Palmitate, Ethylhexyl Stearate, Ethylhexyl acetoxystearate, Glyceryl Caprylate Caprate, Glyceryl Caprylate, Glyceryl Laurate, Glyceryl Triacetyl Hydroxystearate, Glyceryl Triacetyl Ricinoleate, Hexyl Laurate, Isoamyl acetate, Isoamyl Cocoate, Isopropyl Palmitate, Isosorbide Dicaprylate, Isopropyl Myristate, Myristyl Myristate, Oleic/Linoleic Triglyceride, Oleic/Palmitic Triglyceride, Oleic/Palmitic/Lauric/Myristic/Linoleic Triglyceride, Propanediol Caprylate, Ricinoleic/Caproic/Caprylic/ Capric Triglyceride, Oleostearine, Oleyl Erucate, Palmitic/Stearic Triglyceride, Propanediol Dicaprylate Caprate, Propylheptyl Caprylate, Stearyl Heptanoate/Stearyl Caprylate, Triheptanoin, Trihydroxystearin, Triisononanoin, Triisopalmitin, Triisostearin, Trilaurin, Trilinolein, Trilinolenin, Trimyristin, Triolein, Tripalmitin, Tripalmitolein, Tripelargonin, Triricinolein, and Tristearin and dimethylisosorbide. Preferably, the at least one oil (d) is selected from the group consisting of ether-based emollients, preferably from the group consisting of Dicaprylyl Ether, Decyl Ether, C12-15 Alkyl Ether, Dimethicone Copolyol Ether, and Cetearyl Ethylhexanoate. Preferably, the at least one oil (d) is selected from the group consisting of hydrocarbon-based emollients, preferably from the group consisting of Undecane, Tridecane, Dodecane, Isohexadecane, Isododecane, Isoeicosane, Squalane, Hydrogenated Polyisobutene, and Polydecene. In a preferred embodiment, the at least one oil (d) is a diester of 1 ,3-propanediol with linear C6-C22 fatty acids, preferably selected from the group consisting of Propanediol Dicaprylate/Caprate, Propanediol Dicaprate, Propanediol Dicaprylate, Propanediol Dilaurate, and Propanediol Distearate, more preferably the at least one oil (d) is Propanediol Dicaprylate/Caprate.
[0074] Preferably, the at least one oil (d) is present in an amount in the range of > 10.0 to < 50 wt.%, more preferably in the range of > 20 to < 45 wt.%, based on the total weight of the UV filter concentrate.
[0075] In a preferred embodiment, the at least one UV filter concentrate as described above or the at least one UV filter concentrate obtained by the process as described above comprises at least one oil (d). In a preferred embodiment, the oil (d) is C12 - C15 Alkyl Benzoate. In another preferred embodiment, the oil (d) is Caprylic/Capric Triglyceride. In another preferred embodiment, the oil (d) is Caprylic/Capric/Lauric Triglyceride. In another preferred embodiment, the oil (d) is Caprylic/Capric/Linoleic Triglyceride. In another preferred embodiment, the oil (d) is Caprylic/Capric/Myristic/Stearic Triglyceride. In another preferred embodiment, the oil (d) is Caprylic/Capric/Palmitic/Stearic Triglyceride. In another preferred embodiment, the oil (d) is Caprylic/Capric/Stearic Triglyceride. In another preferred embodiment, the oil (d) is Caprylic/Capric/Succinic Triglyceride. In another preferred embodiment, the oil (d) is Caprylyl Caprylate. In another preferred embodiment, the oil (d) is Cetearyl Ethylhexanoate. In another preferred embodiment, the oil (d) is Cetearyl Isononanoate. In another preferred embodiment, the oil (d) is Cetearyl Nonanoate. In another preferred embodiment, the oil (d) is Coco-Caprylate. In another preferred embodiment, the oil (d) is Decyl Cocoate. In another preferred embodiment, the oil (d) is Decyl Oleate. In another preferred embodiment, the oil (d) is Dicaprylyl Carbonate. In another preferred embodiment, the oil (d) is Diethyl Succinate. In another preferred embodiment, the oil (d) is Diethylhexyl 2,6-Naphthalate. In another preferred embodiment, the oil (d) is Diethylhexyl Carbonate. In another preferred embodiment, the oil (d) is Dibutyl Adipate. In another preferred embodiment, the oil (d) is Diisopropyl Adipate. In another preferred embodiment, the oil (d) is Dipropylheptyl Carbonate. In another preferred embodiment, the oil (d) is Ethyl Laurate. In another preferred embodiment, the oil (d) is Ethylhexyl Isononanoate. In another preferred embodiment, the oil (d) is Ethylhexyl Palmitate. In another preferred embodiment, the oil (d) is Ethylhexyl Stearate. In another preferred embodiment, the oil (d) is Ethylhexyl Acetoxystearate. In another preferred embodiment, the oil (d) is Glyceryl Caprylate Caprate. In another preferred embodiment, the oil (d) is Glyceryl Oleate Citrate. In another preferred embodiment, the oil (d) is Glyceryl Caprylate. In another preferred embodiment, the oil (d) is Glyceryl Laurate. In another preferred embodiment, the oil (d) is Glyceryl Triacetyl Hydroxystearate. In another preferred embodiment, the oil (d) is Glyceryl Triacetyl Ricinoleate. In another preferred embodiment, the oil (d) is Hexyl Laurate. In another preferred embodiment, the oil (d) is Isoamyl Acetate. In another preferred embodiment, the oil (d) is Isoamyl Cocoate. In another preferred embodiment, the oil (d) is Isopropyl Palmitate. In another preferred embodiment, the oil (d) is Isosorbide Dicaprylate. In another preferred embodiment, the oil (d) is Isopropyl Myristate. In another preferred embodiment, the oil (d) is Myristyl Myristate. In another preferred embodiment, the oil (d) is Oleic/Linoleic Triglyceride. In another preferred embodiment, the oil (d) is Oleic/Palmitic Triglyceride. In another preferred embodiment, the oil (d) is Oleic/Palmitic/Lauric/Myristic/Linoleic Triglyceride. In another preferred embodiment, the oil (d) is Propanediol Caprylate. In another preferred embodiment, the oil (d) is Ricinoleic/Caproic/Caprylic/Capric Triglyceride. In another preferred embodiment, the oil (d) is Oleostearine. In another preferred embodiment, the oil (d) is Oleyl Erucate. In another preferred embodiment, the oil (d) is Palmitic/Stearic Triglyceride. In another preferred embodiment, the oil (d) is Propanediol Dicaprylate Caprate. In another preferred embodiment, the oil (d) is Propylheptyl Caprylate. In another preferred embodiment, the oil (d) is Stearyl Heptanoate/Stearyl Caprylate. In another preferred embodiment, the oil (d) is Triheptanoin. In another preferred embodiment, the oil (d) is Trihydroxystearin. In another preferred embodiment, the oil (d) is Triisononanoin. In another preferred embodiment, the oil (d) is Triisopalmitin. In another preferred embodiment, the oil (d) is Triisostearin. In another preferred embodiment, the oil (d) is Trilaurin. In another preferred embodiment, the oil (d) is Trilinolein. In another preferred embodiment, the oil (d) is Trilinolenin. In another preferred embodiment, the oil (d) is Trimyristin. In another preferred embodiment, the oil (d) is Triolein. In another preferred embodiment, the oil (d) is Tripalmitin. In another preferred embodiment, the oil (d) is Tripalmitolein. In another preferred embodiment, the oil (d) is Tripelargonin. In another preferred embodiment, the oil (d) is Triricinolein. In another preferred embodiment, the oil (d) is Tristearin. In another preferred embodiment, the oil (d) is Dimethyl Isosorbide.
[0076] In one embodiment, the presently claimed invention is directed to a sunscreen composition or cosmetic composition or homecare composition comprising at least one UV filter concentrate as described above or at least one UV filter concentrate obtained by the process as described above. Hence, the sunscreen composition or cosmetic composition or homecare composition of the presently claimed invention does contain at least three UV filters.
[0077] Preferably, the sunscreen composition comprises at least one UV filter concentrate as described above or at least one UV filter concentrate obtained by the process as described above in an amount in the range of > 1 .0 to < 35.0 wt.%, more preferably in the range of > 5.0 to < 30.0 wt.%, even more preferably in the range of > 10.0 to < 25.0 wt.%, based on the total weight of the sunscreen composition or cosmetic composition. Preferably, the cosmetic composition or homecare composition comprises at least one UV filter concentrate as described above or at least one UV filter concentrate obtained by the process as described above in an amount in the range of > 0.001 to < 5.0 wt.%, more preferably in the range of > 0.1 to < 3.0 wt.%, even more preferably in the range of > 0.2 to < 2.0 wt.%, based on the total weight of the sunscreen composition or cosmetic composition
[0078] UV filters are well known in the art for their use in stopping radiation. A UV filter is a compound or a mixture of compounds that block or absorb ultraviolet (UV) light. UV classifications include UVA (320 to 400 nm), UVB (290 to 320 nm) and UVC (200 to 280 nm). UV-absorbing compounds are used not only in sunscreen, but also in other personal care products, such as lipstick, shampoo, hair spray, body wash, toilet soap, and insect repellent. Chemical filters protect against UV-radiation by absorbing, reflecting, or scattering. Reflection and scattering are accomplished by inorganic physical UV filters, such as titanium dioxide (TiC>2) and zinc oxide (ZnO). Absorption, mainly of UVB, is done by organic UV filters, which are known as chemical UV filters.
[0079] In one embodiment, the sunscreen composition or cosmetic composition or homecare composition preferably comprises at least one inorganic UV filter. Preferred inorganic UV filters are titanium oxide and zinc oxide, iron oxide, zirconium oxide and cerium oxide.
[0080] According to the presently claimed invention, the at least one inorganic UV filter is preferably selected from the group of pigments consisting of titanium dioxide (TiC>2) (amorphous or crystallized in rutile and/or anatase form), zinc oxide (ZnO), iron oxide (F62O3), zirconium oxide (ZrO2), silicon (SiO2), manganese (e.g. MnO), aluminium (AI2O3), cerium oxide (66203), barium carbonate (BaCOs), calcium carbonate (CaCOs), and mixtures thereof.
[0081] More preferably, the at least one inorganic UV filter is titanium dioxide, zinc oxide, and mixtures thereof, more preferably the at least one inorganic UV filter is titanium oxide and/or zinc oxide, and most preferably, the at least one inorganic UV filter is zinc oxide. ZnO has a broad UVA/UVB absorption curve, while TiO2 provides better UVB protection.
[0082] According to another embodiment, the at least one inorganic UV filter is in form of particles having a weight medium particle size dso from 1 nm to 1000 nm, preferably from 3 nm to 800 nm, more preferably from 5 nm to 600 nm, and most preferably from 10 nm to 400 nm.
[0083] The inorganic UV filters also encompass nano pigments (mean size of the primary particles: generally from 1 nm to 100 nm, preferably from 3 nm to 90 nm, more preferred from 5 nm to 80 nm and most preferred from 10 to 70 nm) of untreated or treated metal oxides such as, for example, nano pigments of titanium dioxide (TiCh) (amorphous or crystallized in rutile and/or anatase form), zinc oxide (ZnO), iron oxide (Fe2Os), zirconium oxide (ZrO2), silicon (SiO2), manganese (e.g. MnO), aluminium (AI2O3), cerium oxide (66203), barium carbonate (BaOOs), calcium carbonate (OaOOs), or mixtures thereof.
[0084] The treated nano pigments and non-nano pigments are pigments that have undergone one or more surface treatments of chemical, electronic, mechanochemical and/or mechanical nature with compounds, such as amino acids, beeswax, fatty acids, fatty acid esters, fatty alcohols, anionic surfactants, lecithins, sodium, potassium, zinc, iron or aluminium salts of fatty acids, metal (titanium or aluminium) alkoxides, polyethylene, silicones, proteins (collagen or elastin), alkanolamines, silicon oxides, metal oxides, sodium hexametaphosphate, alumina or glycerol, hydrated silica, stearic acid, jojoba esters, or glutamic acid derivates,
[0085] The treated nano pigments and non-nano pigments may more particularly be titanium oxides treated with silica and alumina, alumina and aluminum stearate, alumina and aluminium laurate, iron oxides and iron stearate, silica, alumina and silicone, sodium hexametaphosphate, octyltrimethoxysilane, alumina and stearic acid, alumina and glycerol, or alumina and silicone or polyhydroxy stearic acid, hydrated silica, jojoba esters, glutamic acid and derivates. Other titanium oxide nano pigments treated with a silicone are preferably TiO2 treated with octyltrimethylsilane, preferably for which the mean size of the elementary particles is from 25 to 40 nm; TiC>2 treated with a polydimethylsiloxane, preferably for which the mean size of the elementary particles is 21 nm; or TiC>2 treated with a polydimethylhydrogenosiloxane, preferably for which the mean size of the elementary particles is 25 nm.
[0086] The coated zinc oxide nano pigments and zinc oxide non-nano pigments are for example ZnO coated with polymethylhydrogenosiloxane; ZnO dispersions in cyclopolymethylsiloxane/ oxyethylenated polydimethylsiloxane, containing 30 % or 80 % of nano or non-nano zinc oxides coated with silica and polymethylhydrogenosiloxane; ZnO coated with perfluoroalkyl phosphate and copolymer based on perfluoroalkylethyl as a dispersion in cyclopentasiloxane; ZnO coated with silicone-grafted acrylic polymer, dispersed in cyclodimethylsiloxane; ZnO coated with triethoxycaprylylsilane; ZnO coated with polyhydroxystearic acid; alumina-treated ZnO dispersed in an ethylhexyl methoxycinnamate/PVP-hexadecene/methicone copolymer mixture; ZnO coated with silica and polymethylsilsesquioxane; ZnO dispersed in hydroxy stearic acid polycondensate; or ZnO coated with a mixture of steaoryl glutamic acid, jojoba esters, polyhydroxystearic acid, isopropyl titanium triisostearate, hydrogenated olive oil stearyl esters, cetearyl nonanoate, cera alba, and sodium stearoyl lactylate.
[0087] Also preferred are particulate UV filters or inorganic pigments, which can optionally be hydrophobized, such as the oxides of iron (Fe2Oa), zirconium (ZrCh), silicon (SiC>2), manganese (e.g. MnO), aluminium (AI2O3), cerium (e.g. Ce2Oa), barium carbonate (BaCCh), calcium carbonate (CaCCh), or mixtures thereof.
[0088] In one embodiment, the sunscreen composition or cosmetic composition or homecare composition preferably comprises at least one water soluble UV filter such as phenyl benzimidazole sulfonic acid (PBSA), sulisobenzone-sodium salt, benzylidene camphor sulfonic acid, camphor Benzalkonium methosulfate, cinoxate, disodium phenyl dibenzylmidazole tetrasulfonate, terephthalylidene dicamphor sulfonic Acid, PABA, and PEG-25 PAB; and any mixture thereof.
[0089] In order to optimize the SPF, i.e. to obtain a high SPF in a range of 6 to 100, preferably in a range of 6 to 70, and to cover a broad UVA and UVB range, the sunscreen composition or cosmetic composition or cosmetic composition according to the presently claimed invention comprises at least three, preferably at least four or even more different organic and/or inorganic UV filters, i.e. in particular organic UV filters and/or inorganic pigments (UV filtering pigments). Such compositions according to the invention are particularly suitable for protecting the skin and hair.
[0090] The SPF is determined by the "COLIPA International Sun Protection Factor Test Method" (COLIPA, May 2006), the increase in the skin reddening threshold (minimal erythema dose, MED) after standardized application of light protection preparations being determined as a function of the irradiation time. [0091] Advantageously, the sunscreen composition or cosmetic composition or cosmetic composition according to the presently claimed invention comprises at least one UVA filter and at least one UVB filter. Such sunscreen compositions or cosmetic compositions according to the presently claimed invention provide broad spectrum photo protection, i.e. protection from both UVA and UVB.
[0092] The combination of effective sun protection UV filters of different categories such as UVA filter, UVB, broadband filter, inorganic pigments provide reliable protection against the different UV rays in the wavelength range of 290 to 400 nm.
[0093] In a further preferred embodiment the sunscreen composition or cosmetic composition or cosmetic composition according to the presently claimed invention comprises a combination with one, two, three or more broadband filters which are selected from the group consisting of 2- ethylhexyl-2-cyano-3,3-diphenyl acrylate, ethyl-2-cyano-3,3'-diphenyl acrylate, dihydroxy-4- methoxybenzophenone, 2,4-dihydroxybenzophenone, tetrahydroxy benzophenone, 2,2'- dihydroxy-4,4'-dimethoxybenzophenone, 2-hydroxy-4-n-octoxybenzophenone, 2-hydroxy-4- methoxy-4'-methylbenzophenone, sodium hydroxymethoxy benzophenone sulfonate, disodium- 2,2'-dihydroxy-4,4'-dimethoxy-5,5'-disulfobenzophenone, phenol, 2-(2H-benzotriazol-2-yl)-4- methyl-6-(2-methyl-3(1 ,3,3,3-tetramethyl-1-(trimethylsilyl)oxy)disiloxyanyl) propyl), 2,2'- methylene-bis-(6-(2H-benzotriazol-2-yl)-4-1 ,1 ,3,3-tetramethylbutyl)phenol) (methylene-bis- benzotriazolyl tetramethylbutylphenol), 2,4-bis-[4-(2-ethylhexyloxy)-2-hydroxyphenyl]-1 ,3,5- triazine, 2,4-bis-[{(4-(2-ethylhexyloxy)-2-hydroxy}phenyl]-6-(4-methoxyphenyl)-1 ,3,5-triazine (INCI: Aniso Triazin), 2,4-bis-[{(4-(3-sulfonato)-2-hydroxypropyloxy)-2-hydroxy}phenyl]-6-(4- methoxyphenyl)-1 ,3,5-triazine sodium salt, 2,4-bis-[{(3-(2-propyloxy)-2-hydroxypropyloxy)-2- hydroxy}phenyl]-6-(4-methoxyphenyl)-1 ,3,5-triazine, 2,4-bis-[{4-(2-ethylhexyloxy)-2- hydroxy}phenyl]-6-[4-(2-methoxyethylcarbonyl) phenylamino]-1 ,3,5-triazine, 2,4-bis-[{4-(3-(2- propyloxy)-2-hydroxypropyloxy)-2-hydroxy}phenyl]-6-[4-(2-ethylcarboxyl) phenylamino]-1 ,3,5- triazine, 2,4-bis-[{4-(2-ethylhexyloxy)-2-hydroxy}phenyl]-6-(1-methylpyrrol-2-yl)-1 ,3,5-triazine,
2.4-bis-[{4-tris-(trimethylsiloxysilylpropyloxy)-2-hydroxy}phenyl]-6-(4-methoxyphenyl)-1 ,3,5- triazine, 2,4-bis-[{4-(2"-methylpropenyloxy)-2-hydroxy}phenyl]-6-(4-methoxyphenyl)-1 ,3,5- triazine, 2,4-bis-[{4-(T,T,T,3',5',5',5'-heptamethylsiloxy-2"-methylpropyloxy)-2-hydroxy}phenyl]- 6-(4-methoxyphenyl)-1 ,3,5-triazine, dioctylbutylamidotriazone (INCI: Dioctylbutamidotriazone),
2.4-bis-[5-1(dimethylpropyl)benzoxazol-2-yl-(4-phenyl)-imino]-6-(2-ethylhexyl)-imino-1 ,3,5- triazine, 4,4',4"-(1 ,3,5-triazine-2,4,6-triyltriimino)tris-benzoic acid-tris(2-ethyl-hexylester) (also: 2,4,6-tris[anilino(p-carbo-2'-ethyl-1'-hexyloxy)]-1 ,3,5-triazine (INCI: Octyl Triazone), 2,4,6- tribiphenyl-4-yl-1 ,3,5-triazine, 2-ethylhexyl 4-methoxycinnamate (ethylhexyl methoxycinnamate), benzoic acid, 2-hydroxy-, 3,3,5-trimethylcyclohexyl ester (Homosalate), 2-ethylhexyl salicylate (Ethylhexyl Salicylate), 2-ethylhexyl 4-(dimethylamino)benzoate (Ethylhexyl Dimethyl PABA), N,N,N-Trimethyl-4-(2-oxoborn-3-ylidenemethyl) anilinium methyl sulfate (Camphor Benzalkonium Methosulfate), dimethicodiethylbenzalmalonate (Polysilicone-15), and any mixtures thereof.
[0094] The sunscreen composition or cosmetic composition or cosmetic composition according to the presently claimed invention optionally contains at least one film forming agent. Optionally means that a film forming agent is not mandatory in the sunscreen composition or cosmetic composition or cosmetic composition according to the presently claimed invention but can be advantageously incorporated. Film forming agents are well known in the art from their use as agents for improving the water resistance of sunscreen products.
[0095] A film forming agent is a hydrophobic material that imparts water resistance and film forming characteristics to the sunscreen compositions or cosmetic compositions. Typical suitable film forming agents include copolymers derived from polymerization of octadecene- 1 and maleic anhydride. A preferred film forming agent is a polyanhydride resin. Another preferred film forming agent is a copolymer of vinyl pyrrolidone and eicosene monomers.
[0096] Standard film forming agents are chitosan, microcrystalline chitosan, quaternized chitosan, polyvinyl pyrrolidone, vinyl pyrrolidone/vinyl acetate copolymers, polymers of the acrylic acid series, quaternary cellulose derivatives, collagen, hyaluronic acid and salts thereof and similar compounds.
[0097] According to the presently claimed invention, the film forming agents are preferably selected from the group consisting of Polyamide-8 (such as Oleocraft LP 20 PA (MV)), Polyamide- 3 (such as Oleocraft MP 32 PA (MV)), Trimethylpentanediol/Adipic Acid/Glycerin Crosspolymer (such as WetFilm), Octyldodecyl Citrate Crosspolymer (such as CosmoSurf CE 100), Polyglyceryl-3 Methyl Glucose Distearate (such as TegoCare 450), C28-52 Olefin/Undecylenic Acid Copolymer (such as Performa V6112), Hydrolyzed Jojoba esters, Jojoba Esters, Aqua (such as Floraester Jojoba K100), Cyclopentasiloxane Acrylates/Dimethicone copolymer (such as KP545), Acrylates/Beheneth-25 Methacylate Copolymer (such as Volarest), Styrene/Acrylates Copolymer (such as Dermacryl E Polymer), Polyurethane (such as Baycusan C1001), Polyurethane-2 and Polymethyl Methacrylate (such as Hybridur 875 Polymer), Acrylates/Octylacrylamide Copolymer (such as Dermacryl 2.0 Polymer), Beeswax (Cera Alba) (and) Sodium Stearoyl Lactylate (such as SymEffekt Sun), Pullulan, Xanthan Gum, Microcrystalline cellulose (and) Sphingomonas ferment extract (and) Cellulose gum (such as PemuPur™ START Polymer), Acacia Senegal Gum and Xanthan Gum (such as SOLAGUM™ AX), Microcrystalline Cellulose (and) Cellulose Gum (such as Natpure Cellgum Plus), Sodium Stearoyl Glutamate (such as AMISOFT® HS-11 P), Hydrogenated Polycyclopentadiene (and) Caprylic/Capric Triglyceride (such as Koboguard® 5400 CCT), Glyceryl Hydrogenated Rosinate (and) Caprylic/Capric Triglyceride (and) Tocopherol (such as KOBOGUARD® NATURAL 2063- CCT), Galactoarabinan (such as LaraCare® A 200), C26-28 Alkyl Dimethicone (such as Wacker BELSIL® CDM 3526 VP), Caprylyl Methicone (such as Silsoft 034), Stearyl Dimethicone (and) Octadecene (such as Dowsil 2503 Cosmetic Wax), VP/Hexadecene Copolymer (such as Antaron™ V 216), Triacontanyl PVP (such as Antaron™ WP-660), Capryloyl Glycerin/Sebacic Acid Copolymer (such as LexFilm™ Sun Natural MB), Poly C10-30 Alkyl Acrylate (such as Tego SP 13 Sun Up), Microcrystalline Cellulose (such as Sunspheres™ BIO SPF Booster), Hydrogenated Palm Oil, Saccharum Officinarum Extract , and Beeswax (Cera Alba), Sodium Stearoyl Lactylat, and any mixture thereof.
[0098] More preferred, the film forming agents are selected from the group consisting of Trimethylpentanediol/Adipic Acid/Glycerin Crosspolymer (such as WetFilm), Octyldodecyl Citrate Crosspolymer (such as CosmoSurf CE 100), Polyglyceryl-3 Methyl Glucose Distearate (such as TegoCare 450), C28-52 Olefin/Undecylenic Acid Copolymer (such as Performa V6112), Hydrolyzed Jojoba esters, Jojoba Esters, Aqua (such as Floraester Jojoba K100), Cyclopentasiloxane Acrylates/Dimethicone copolymer (such as KP545), Styrene/Acrylates Copolymer (such as Dermacryl E Polymer), Acrylates/Octylacrylamide Copolymer (such as Dermacryl 2.0 Polymer), Beeswax (Cera Alba) (and) Sodium Stearoyl Lactylate (such as SymEffect Sun), Pullulan, Xanthan Gum, Microcrystalline cellulose (and) Sphingomonas ferment extract (and) Cellulose gum (such as PemuPur™ START Polymer), Acacia Senegal Gum and Xanthan Gum (such as SOLAGUM™ AX), Microcrystalline Cellulose (and) Cellulose Gum (such as Natpure Cellgum Plus), Sodium Stearoyl Glutamate (such as AMISOFT® HS-11 P), Hydrogenated Polycyclopentadiene (and) Caprylic/Capric Triglyceride (such as Koboguard® 5400 CCT), Glyceryl Hydrogenated Rosinate (and) Caprylic/Capric Triglyceride (And) Tocopherol (such as KOBOGUARD® NATURAL 2063-CCT), Galactoarabinan (such as LaraCare® A 200), C26-28 Alkyl Dimethicone (such as Wacker BELSIL® CDM 3526 VP), Caprylyl Methicone (such as Silsoft 034), Stearyl Dimethicone (and) Octadecene (such as Dowsil 2503 Cosmetic Wax), VP/Hexadecene Copolymer (such as Antaron™ V 216), Triacontanyl PVP (such as Antaron™ WP-660), Capryloyl Glycerin/Sebacic Acid Copolymer (such as LexFilm™ Sun Natural MB), Poly C10-30 Alkyl Acrylate (such as Tego SP 13 Sun Up), Microcrystalline Cellulose (such as Sunspheres™ BIO SPF Booster), and any mixture thereof.
[0099] Most preferred, the film forming agents are selected from the group consisting of Hydrolyzed Jojoba esters, Jojoba Esters, Aqua (such as Floraester Jojoba K100), Cyclopentasiloxane Acrylates/Dimethicone copolymer (such as KP545), Styrene/Acrylates Copolymer (such as Dermacryl E Polymer), Acrylates/Octylacrylamide Copolymer (such as Dermacryl 2.0 Polymer), Beeswax (Cera Alba) (and) Sodium Stearoyl Lactylate (such as SymEffect Sun), Pullulan, Xanthan Gum, Microcrystalline cellulose (and) Sphingomonas ferment extract (and) Cellulose gum (such as PemuPur™ START Polymer), Microcrystalline Cellulose (and) Cellulose Gum (such as Natpure Cellgum Plus), Hydrogenated Polycyclopentadiene (and) Caprylic/Capric Triglyceride (such as Koboguard® 5400 CCT), Glyceryl Hydrogenated Rosinate (And) Caprylic/Capric Triglyceride (And) Tocopherol (such as KOBOGUARD® NATURAL 2063- CCT), Galactoarabinan (such as LaraCare® A 200), C26-28 Alkyl Dimethicone (such as Wacker BELSIL® CDM 3526 VP), Stearyl Dimethicone (and) Octadecene (such as Dowsil 2503 Cosmetic Wax), VP/Hexadecene Copolymer (such as Antaron™ V 216), Triacontanyl PVP (such as Antaron™ WP-660), Capryloyl Glycerin/Sebacic Acid Copolymer (such as LexFilm™ Sun Natural MB), Poly C10-30 Alkyl Acrylate (such as Tego SP 13 Sun Up), Microcrystalline Cellulose (such as Sunspheres™ BIO SPF Booster), and any mixture thereof.
[0100] The aforesaid film forming agents are used in the sunscreen composition or cosmetic composition either as a single component or preferably in a mixture with two or more further of said film forming agents as specified above.
[0101] Besides the group of organic and/or inorganic sun protection UV filters mentioned above, secondary sun protection ingredients of the antioxidant type may also be advantageously used in the sunscreen composition or cosmetic composition or cosmetic composition according to the presently claimed invention in order to further optimize UV protection.
[0102] Secondary sun protection ingredients of the antioxidant type interrupt the photochemical reaction chain which is initiated when UV rays penetrate into the skin.
[0103] Typical examples of secondary sun protection ingredients are amino acids (for example arginine, lysine, glycine, histidine, tyrosine, tryptophane) and derivatives thereof, imidazoles (for example urocanic acid) and derivatives thereof, peptides, such as D,L-carnosine, D-carnosine, L- carnosine and derivatives thereof (for example anserine), carotenoids, carotenes (for example alpha-carotene, beta-carotene, lycopene) and derivatives thereof, chlorogenic acid and derivatives thereof, liponic acid and derivatives thereof (for example dihydroliponic acid), aurothioglucose, propylthiouracil and other thiols (for example thioredoxine, glutathione, cysteine, cystine, cystamine and glycosyl, N-acetyl, methyl, ethyl, propyl, amyl, butyl and lauryl, palmitoyl, oleyl, alpha-linoleyl, cholesteryl and glyceryl esters thereof) and their salts, dilaurylthiodipropionate, distearylthiodipropionate, thiodipropionic acid and derivatives thereof (esters, ethers, peptides, lipids, nucleotides, nucleosides and salts) and sulfoximine compounds (for example butionine sulfoximines, homocysteine sulfoximine, butionine sulfones, penta-, hexa- and hepta-thionine sulfoximine) in very small compatible dosages, also (metal) chelators (for example alpha-hydroxy fatty acids, palmitic acid, phytic acid, lactoferrine), alpha-hydroxy acids (for example citric acid, lactic acid, malic acid), humic acid, bile acid, bile extracts, bilirubin, biliverdin, EDTA, EGTA and derivatives thereof, unsaturated fatty acids and derivatives thereof (for example linoleic acid, oleic acid), folic acid and derivatives thereof, ubiquinone and ubiquinol and derivatives thereof, vitamin C and derivatives thereof (for example ascorbyl palmitate, Mg ascorbyl phosphate, ascorbyl acetate), tocopherols and derivatives (for example vitamin E acetate), vitamin A and derivatives (vitamin A palmitate) and coniferyl benzoate of benzoin resin, rutinic acid and derivatives thereof, glycosyl rutin, ferulic acid, furfurylidene glucitol, carnosine, butyl hydroxytoluene, butyl hydroxyanisole, nordihydroguaiac resin acid, nordihydroguaiaretic acid, trihydroxybutyrophenone, uric acid and derivatives thereof, mannose and derivatives thereof, superoxide dismutase, sinapic acid, sinapoyl malate, sinapate ester derivatives, titanium dioxide (for example dispersions in ethanol), zinc and derivatives thereof (for example ZnO, ZnSC>4), selenium and derivatives thereof (for example selenium methionine), stilbenes and derivatives thereof (for example stilbene oxide, trans-stilbene oxide), methoxyphenylimino dimethylcyclohexenyl ethyl glycinate, and derivatives of these active substances suitable for the purposes of the invention (salts, esters, ethers, sugars, nucleotides, nucleosides, peptides and lipids).
[0104] The group of secondary sun protection ingredients also encompasses plant-based extract(s). Said plant-based extracts have antioxidative and in general photoprotective properties and interrupt the photochemical reaction chain which is initiated when UV rays penetrate into the skin, thus, are effective in preventing skin aging. The plant extracts with UV protection properties are selected from the group consisting of Lignin/Cellulose, Lignin, Lignin Hydrolyzed, Propolis and green propolis, Galanga Extract, macro and micro algae (Porphyra, red algae (Porphyra Umbilicalis), Palmaria palmata, Saccharina latissimi, Corallina pilulifera, Eckloina cava, Sargassum sagamianum, Porphyra rosengurttii, Sargassum siliquastrum, Thalassiosira weissflogii, Green Microalgae (e.g. Interfilum and Klebsormidium), Seaweed (e.g. Padina australis, Euchema, cottonii), Pongamia Glabra Seed Oil, Karanja oil (Millettia pinnata), Rhatania Extrakt (Krameria lappacea), Lichens, Soybean, Caper (Capparis spinosa), Bamboo, Green Coffee oil, Buriti Oil (Mauritia flexuosa), Black Sea Cucumber (Holothuria atra), Cyanobacteria, Fernblock (Polypodium leucotomos), Green Tee, Black Tea (Camellia sinensis), Aloe vera, Walnut, Borage oil, Evening primrose oil, Avocado oil, Tea tree oil, Red Clover (Trifolium pratense L.), Soybean (Glycine max L.), Caper (Capparis spinosa), Almonds, Flame of the forest (Spathodea campanulata), Milk thistle (Silybum marianum L.), Cashew nut shell, Grape, Red Orange, Pomegranate (Punica granatu), Bilberry (Vaccinium myrtillus L.), Bog blueberry (Vaccinium uliginosum L.), Strawberry (Fragaria ananassa), Foti (Polygonum multiflorum Thunb), Turmeric (Curcuma longa L.), Ginseng (Panax ginseng), English ivy (Hedera helix), Broccoli (Brassica oleracea var italica), Tamarind (Tamarindus indica), Opuntia ficus-indica, Coffee, Basil (Ocimum basilicum, Linn.), pomegranate seed oil(Punica granatum), wheat germ oil (Triticum vulgare), blackcurrant seed oil (Ribes nigrum), sesameoil (Sesamum indicum), carrot root (Daucuscarota sativa), raspberry seed oil (Rubus idaeus), traditional medicinal plants from Sri Lanka (Aporosa lindleyana (Euphorbiaceae), Atalantia ceylanica (Rutaceae), Hibiscus furcatus (Malvaceae), Olaxzeylanica (Olacaceae), Ophiorrhiza mungos (Rubiaceae), Argyreia populifolia (Convolvulaceae), Ipomoea mauritiana (Convolvulaceae), Lasia spinosa (Araceae), Leucas zeylanica (Lamiaceae), Plectranthus zeylanicus (Lamiaceae) and Brazil (D. gardneriana seeds, L. microphylla leafs, Amburana cearensis, Aspidosperma cuspa, Aspidosperma pyrifolium, Croton sonderianus, Curatella americana, Dimophandra gardneriana, Lippia microphylla, Luehea paniculata, Sida galheirensis and any mixture thereof.
[0105] Preferably, the plant extracts with UV protection properties are selected from the group consisting of Lignin/Cellulose, Lignin, Lignin Hydrolyzed, Galanga Extract, Porphyra, red algae (Porphyra Umbilicalis), Green Microalgae (e.g. Interfilum and Klebsormidium), Seaweed (e.g. Padina australis, Euchema, cottonii), Pongamia Glabra Seed Oil, Karanja oil (Millettia pinnata), Rhatania Extrakt (Krameria lappacea), Soybean, Bamboo, Buriti Oil (Mauritia flexuosa), Cyanobacteria, Fernblock (Polypodium leucotomos), Green Tee, Black Tea (Camellia sinensis), Evening primrose oil, Cashew nut shell, Pomegranate (Punica granatu), and any mixture thereof.
[0106] The amount of secondary sun protection substances in the sunscreen composition or cosmetic composition or cosmetic composition according to the presently claimed invention is advantageously from 0.005 to 5.0 % by weight, preferably from 0.01 to 4.0 % by weight, most preferred from 0.05 to 3.0 % by weight, based on the total weight of the ready-to-use formulation.
[0107] The UV filters are incorporated either in the aqueous or in the lipophilic part of the sunscreen composition or cosmetic composition, depending if they are water or oil (fat) soluble/miscible UV filters or may even be added to the final product by standard methods known to a person skilled in the art.
[0108] The at least one organic and/or inorganic UV filter according to the presently claimed invention is present in the sunscreen composition or cosmetic composition in an amount of 0.01 to 80.0 % by weight, based on the total weight of the final formulation. In a preferred embodiment, the sunscreen composition or cosmetic composition comprises the organic and/or inorganic UV filter in an amount of 0.1 to 75.0 % by weight, based on the total weight of the final formulation. In a more preferred embodiment, the UV filter is advantageously used in the sunscreen composition or cosmetic composition in an amount of 0.5 to 70.0 % by weight, based on the total weight of the final formulation. In a most preferred embodiment, the UV filter is advantageously used in the sunscreen composition or cosmetic composition in an amount of 1.0 to 60.0 % by weight, based on the total weight of the final formulation.
[0109] For a mixture of organic and/or inorganic UV filters, the above amounts relate to the total content of the UV filters in the mixture, i.e. the amount is the sum of the content of all primary UV filters in the mixture.
[0110] The organic and/or inorganic UV filter and further UV-protection components, such as secondary sun protection ingredients or secondary sun protection UV filters, as defined herein, i.e. the total amount of UV filters, are present in the sunscreen composition or cosmetic composition or cosmetic composition according to the presently claimed invention, in an amount of 0.1 to 85.0 % by weight, based on the total weight of the final formulation. In a preferred embodiment, the sunscreen product, cosmetic or pharmaceutical preparation comprises the organic and/or inorganic UV filter and the further UV-protection components as defined herein in an amount of 0.3 to 80.0 % by weight, based on the total weight of the final formulation. In a more preferred embodiment, the UV filter and the further UV-protection components as defined herein are advantageously used in the sunscreen composition or cosmetic composition in an amount of 0.5 to 75.0 % by weight, based on the total weight of the final formulation. Thus, the above amounts relate to the sum of the content of all UV f i Iters/U V protection components present in the sunscreen or cosmetic or pharmaceutical preparation.
[0111] The sunscreen compositions or cosmetic compositions according to the presently claimed invention provide broad spectrum photo-protection und therefore provide protection from both UVA and UVB radiation. Sun protection factor (SPF) is a measure of UVB protection. Typically, the compositions of the presently claimed invention have an SPF of at least 6. The SPF however, can vary as needed. The type and amount of UVA and UVB filters can be varied to obtain a desired level of SPF. Preferably, the SPF of the sunscreen composition or cosmetic composition or cosmetic composition according to the presently claimed invention is at least 6, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80 or even more.
[0112] The sunscreen composition or cosmetic composition or homecare composition of the presently claimed invention further comprises at least one excipient and/or cosmetically or pharmaceutically active substance selected from the group consisting of carriers, oil components, rheology additives, hydrotropes, solubilizing agents, powders, film formers, water resistance improving agents, skin moisturizing and/or moisture-retaining substances, lenitive substances, physiological cooling agents, antioxidants, agents against ageing of the skin, matrixmetalloproteinase inhibitors (MM PI), anti-inflammatory agents, TRPV1 antagonists, emulsifiers, preservatives, antibacterial or antimycotic active substances, chelating agents, surfactants, fragrances/aroma or perfume oils, and any mixture of two or more of the afore-mentioned substances.
[0113] As the sunscreen compositions or cosmetic compositions as defined herein are intended for topical application, such as in the form of ointments, pastes, creams and gels, etc. they are preferably based on a carrier. Most common acceptable carrier is water. Acceptable carries other than water include glycerin, C1-4 alcohols, organic solvents, fatty alcohols, fatty ethers, fatty esters, polyols, glycols, vegetable oils, mineral oils, liposomes, laminar lipid materials, water, or a mixture thereof. Non-limiting examples of organic solvents include mono alcohols and polyols such as ethyl alcohol, isopropyl alcohol, propyl alcohol, benzyl alcohol, and phenylethyl alcohol, or glycols or glycol ethers such as, for example, monomethyl, monoethyl and monobutyl ethers of ethylene glycol, propylene glycol or ethers thereof such as, for example, monomethyl ether of propylene glycol, butylene glycol, hexylene glycol, dipropylene glycol as well as alkyl ethers of diethylene glycol, for example monoethyl ether or monobutyl ether of diethylene glycol. Other suitable examples of organic solvents are ethylene glycol, propylene glycol, butylene glycol, hexylene glycol, propane diol, and glycerin. The organic solvents can be volatile or non-volatile compounds. The total amount of carrier in the compositions can vary but is typically 40 to 90 % by weight, based on the total weight of the composition.
[0114] The sunscreen composition or cosmetic composition or cosmetic composition according to the presently claimed invention may include at least one UV filter stabilizing agent that stabilizes UV filters and thereby boosts their efficacy selected from the group consisting of 2-[(5,5-dimethyl- 3-phenylimino-cyclohexen-1-yl)amino]acetic acid, 2-[(3-phenyliminocyclohexen-1- yl)amino]acetic acid, 2,5,5-trimethyl-3-(phenylimino)cyclohex-1-en-1-yl-glycine, 2-[(2-methyl-3- phenylimino-cyclohexen-1-yl)amino]acetic acid, 3-((3,4-dimethoxyphenyl)imino)-5,5- dimethylcyclohex-1-en-1-yl-glycine, 3-((3,4-dimethoxyphenyl)imino)cyclohex-1-en-1-yl-glycine, 3-((3,4-dimethoxyphenyl)imino)-2,5,5-trimethylcyclohex-1-en-1-yl-glycine, 2-[(3-(3,4- dimethoxyphenyl)imino-2-methyl-cyclohexen-1-yl)amino]acetic acid, 2-[(5,5-dimethyl-3-(4- sulfophenyl)imino-cyclohexen-1-yl)amino]acetic acid, 2-[(3-(4-sulfophenyl)iminocyclohexen-1- yl)amino]acetic acid, 2,5,5-trimethyl-3-((4-sulfophenyl)imino)cyclohex-1-en-1-yl-glycine, 2- methyl-3-((4-sulfophenyl)imino)cyclohex-1-en-1-yl-glycine, 2-[(5,5-dimethyl-3-phenylimino- cyclohexen-1-yl)amino]acetamide, 2-[(3-phenyliminocyclohexen-1-yl)amino]acetamide, 2- ((2,5,5-trimethyl-3-(phenylimino)cyclohex-1-en-1-yl)amino)acetamide, 2-((2-methyl-3-
(phenylimino)cyclohex-1-en-1-yl)amino)acetamide, 2-((3-((3,4-dimethoxyphenyl)imino)-5,5- dimethylcyclohex-1-en-1-yl)amino)acetamide, 2-[(3-(3,4-dimethoxyphenyl)iminocyclohexen-1- yl)amino]acetamide, 2-((3-((3,4-dimethoxyphenyl)imino)-2,5,5-trimethylcyclohex-1-en-1- yl)amino)acetamide, and 2-((3-((3,4-dimethoxyphenyl)imino)-2-methylcyclohex-1-en-1- yl)amino)acetamide.
[0115] The compositions of the presently claimed invention may include at least one water- soluble or organic solvent. Non-limiting examples of organic solvents include monoalcohols and polyols such as ethyl alcohol, isopropyl alcohol, propyl alcohol, benzyl alcohol, and phenylethyl alcohol, or glycols or glycol ethers such as, for example, monomethyl, monoethyl and monobutyl ethers of ethylene glycol, propylene glycol or ethers thereof such as, for example, monomethyl ether of propylene glycol, butylene glycol, hexylene glycol, dipropylene glycol as well as alkyl ethers of diethylene glycol, for example monoethyl ether or monobutyl ether of diethylene glycol. Other suitable examples of organic solvents are ethylene glycol, propylene glycol, butylene glycol, hexylene glycol, propane diol, and glycerin. The organic solvents can be volatile or non-volatile compounds.
[0116] Further non-limiting examples of water-soluble solvents include alkanols (polyhydric alcohols such as glycols and polyols) such as glycerin, 1 ,2,6-hexanetriol, trimethylolpropane, ethylene glycol, propylene glycol, diethylene glycol, butylene glycol, hexylene glycol, triethylene glycol, tetraethylene glycol, pentaethylene glycol, dipropylene glycol, 1 ,3-butanediol, 2,3- butanediol, 1 ,4-butanediol, 3-methyl-1 ,3- butanediol, 1 ,5-pentanediol, tetraethylene glycol, 1 ,6- hexanediol, 2-methyl-2,4- pentanediol, polyethylene glycol, 1 ,2,4-butanetriol, 1 ,2,6-hexanetriol, 2-butene-1 ,4- diol, 2-ethyl-1 ,3-hexanediol, 2-methyl-2,4-pentanediol, 1 ,2-pentanediol, 1 ,2- hexanediol, 1 ,2-heptanediol, 1 ,2-octanediol, 1 ,2-decanediol, and 4-methyl-1 ,2-pentanediol; alkyl alcohols having 1 to 4 carbon atoms such as ethanol, methanol, butanol, propanol, and isopropanol; glycol ethers such as ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monobutyl ether, ethylene glycol monomethyl ether acetate, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol mono-n-propyl ether, ethylene glycol mono-iso-propyl ether, diethylene glycol mono-iso-propyl ether, ethylene glycol mono-n-butyl ether, ethylene glycol mono-t- butyl ether, diethylene glycol mono-t-butyl ether, 1-methyl-1-methoxybutanol, propylene glycol monomethyl ether, propylene glycol monoethyl ether, propylene glycol mono-t-butyl ether, propylene glycol mono-n-propyl ether, propylene glycol mono-iso-propyl ether, dipropylene glycol monomethyl ether, dipropylene glycol monoethyl ether, dipropylene glycol mono-n-propyl ether, and dipropylene glycol mono-iso-propyl ether; 2-pyrrolidone, N-methyl-2-pyrrolidone, 1 ,3-dimethyl-2- imidazolidinone, formamide, acetamide, dimethyl sulfoxide, sorbit, sorbitan, acetine, diacetine, triacetine, sulfolane, and any mixture thereof. The total amount water-soluble or organic solvent(s) in the composition according to the presently claimed invention may vary but is typically 0.1 to 50 % by weight, based on the total weight of the composition.
[0117] The compositions of the presently claimed invention may include at least one solubilizing agent. Solubilizing agents are compounds that help solubilize the UV filter(s) and/or other components in the compositions. A particularly useful but non limiting example of a solubilizing agent is a hydrotrope. Hydrotropes (or hydrotropic agents) are a diverse class of typically water- soluble compounds that may be characterized by an amphiphilic molecular structure and an ability to dramatically increase the solubility of poorly soluble organic molecules in water. Non-limiting examples of hydrotopes include sodium 1 ,3-benzenedisulfonate, sodium benzoate, sodium 4- pyridinecarboxylate, sodium salicylate, sodium benzene sulfonate, caffeine, sodium p-toluene sulfonate, sodium butyl monoglycolsulfate, 4- aminobenzoic acid HCI, sodium cumene sulfonate, N,N-diethylnicotinamide, N-picolylnicotinamide, N-allylnicotinamide, 2-methacryloyloxyethyl phosphorylcholine, resorcinol, butylurea, pyrogallol, N-picolylacetamide 3.5, procaine HCI, proline HCI, nicotinamide, pyridine, 3-picolylamine, sodium ibuprofen, sodium xylenesulfonate, ethyl carbamate, pyridoxal hydrochloride, sodium benzoate, 2-pyrrolidone, ethylurea, N,N- dimethylacetamide, N-methylacetamide, and isoniazid and any mixture thereof. In some cases, particularly useful hydrotropes include nicotinamide (niacinamide), caffeine, sodium PCA, sodium salicylate, urea, and dhydroxyethyl urea, in particular, nicotinamide (niacinamide) and/or caffeine. A combination of two or more, three or more, or four or more hydrotopes may also be used in the compositions according to the presently claimed invention. The total amount of solubilizing agent(s) in the compositions of the presently claimed invention may vary but are typically in an amount of 0.01 to 20 % by weight, based on the total weight of the composition.
[0118] The sunscreen composition or cosmetic composition may include at least one oil phase or at least one oil component, waxes, starch, tragacanth, cellulose derivatives, polyethylene glycols, silicones, bentonites, silica, talc and zinc oxide or any mixture thereof. Powders include carriers such as lactose, talc, silica, aluminium hydroxide, calcium silicate and polyamide powder or any mixture thereof. Solutions and emulsions include carriers such as solvents such as water, ethanol, isopropanol, ethyl carbonate, ethyl acetate, benzyl alcohol, propylene glycol, etc. or any mixture thereof. However, preparations solely based on water are also possible. Oils, oil-in-water and water-in-oil emulsions, etc. are preferred.
[0119] The oil phase or the oil component in the sunscreen composition or cosmetic composition or cosmetic composition according to the presently claimed invention which may be suitable are for example plant oils, hydrocarbons, fatty alcohols, fatty acid esters, or mixtures of two or more of the aforesaid oil components.
[0120] The oil phase or oil component in the sunscreen composition or cosmetic composition is preferably a plant oil and even more preferably a liquid plant oil. It can also advantageously be a mixture of two or more plant oils components, especially liquid plant oil mixtures.
[0121] Plant oils or vegetable oils are oils extracted from seeds, or less often, from other parts of fruits. Like animal fats, plant oils are mixtures of triglycerides. Soybean oil, rapeseed oil and cocoa butter are examples of plant oils from seeds. Olive oil, palm oil and rice bran oil are examples of oils from other parts of fruits. In common usage, plant oil or vegetable oil may refer exclusively to vegetable fats which are liquid at room temperature or at 35 to 37 °C skin temperature. Vegetable oils are usually edible.
[0122] The term “plant oils” also includes unsaturated plant oils. Unsaturated oils or vegetable oils can be transformed through partial or complete “hydrogenation” into oils of higher melting point. The hydrogenation process involves “sparging” the oil at high temperature and pressure with hydrogen in the presence of a catalyst, typically a powdered nickel compound. As each carbon-carbon double-bond is chemically reduced to a single bond, two hydrogen atoms each form single bonds with the two carbon atoms. The elimination of double bonds by adding hydrogen atoms is called saturation; as the degree of saturation increases, the oil progresses toward being fully hydrogenated. An oil may be hydrogenated to increase resistance to rancidity (oxidation) or to change its physical characteristics. As the degree of saturation increases, the oil's viscosity and melting point increase. [0123] In a preferred embodiment, the plant oil is selected from the group consisting of Persea Gratissima (Avocado Oil), Abies Alba Seed Oil, Acacia Victoriae Seed Oil, Actinidia Chinensis (Kiwi) Seed Oil, Amaranthus Hypochondriacus Seed Oil, Arachis Hypogaea (Peanut) Oil, Astrocaryum Murumuru Seed Butter, Astrocaryum Tucuma Seed Butter, Astrocaryum Tucuma Seed Oil, Astrocaryum Vulgare Fruit Oil, Astrocaryum Vulgare Kernel Oil, Avena Sativa (Oat) Kernel Oil, Brassica Alba Seed Oil, Brassica Campestris (Rapeseed) Seed Oil, Butyrospermum Parkii (Shea) Butter, Butyrospermum Parkii (Shea) Oil, Calendula Officinalis Seed Oil, Calophyllum Inophyllum Seed Oil, Calophyllum Tacamahaca Seed Oil, Camellia Oleifera Seed Oil, Camellia Reticulata Seed Oil, Camellia Sinensis Seed Oil, Cannabis Sativa Seed Oil, Cannabis Sativa Seed/Stem Oil, Canola Oil, Carthamus Tinctorius (Safflower) Seed Oil, Chlorella Vulgaris Oil, Citrullus Lanatus (Watermelon) Seed Oil, Citrus Aurantifolia (Lime) Seed Oil, Citrus Aurantium Dulcis (Orange) Seed Oil, Citrus Grandis (Grapefruit) Seed Oil, Cocos Nucifera (Coconut) Oil, Cocos Nucifera (Coconut) Seed Butter, Coffea Arabica (Coffee) Seed Oil, Chlorella Oil (biotech), Corylus Americana (Hazelnut) Seed Oil, Corylus Avellana (Hazelnut) Seed Oil, Cucumis Melo (Melon) Seed Oil, Cucumis Sativus (Cucumber) Seed Oil, Cucurbita Pepo (Pumpkin) Seed Oil, Elaeis Guineensis (Palm) Oil, Elaeis (Palm) Fruit Oil, Glycine Soja (Soybean) Oil, GosSY-pium Herbaceum (Cotton) Seed Oil, GosSY-pium Hirsutum (Cotton) Seed Oil, Helianthus Annuus (Sunflower) Seed Oil, Macadamia Integrifolia Seed Oil, Macadamia Ternifolia Seed Oil, Mangifera Indica (Mango) Seed Butter, Mangifera Indica (Mango) Seed Oil, Melissa Officinalis Seed Oil, Microalgae Oil, Moringa Oleifera Seed Oil, Moringa Peregrina Seed Oil, Oenothera Biennis (Evening Primrose) Oil, Olea Europaea (Olive) Fruit Oil, Olus Oil, Orbignya Oleifera Seed Oil, Orbignya Speciosa Kernel Oil, Oryza Sativa (Rice) Bran/Germ Oil, Oryza Sativa (Rice) Bran Oil, Oryza Sativa (Rice) Germ Oil, Oryza Sativa (Rice) Lipids, Oryza Sativa (Rice) Seed Oil, Papaver Somniferum Seed Oil, Passiflora Edulis Seed Oil, Persea Gratissima (Avocado) Butter, Persea Gratissima (Avocado) Oil, Prunus Amygdalus Dulcis (Sweet Almond) Oil, Prunus Armeniaca (Apricot) Kernel Oil, Prunus Persica (Peach) Kernel Oil, Punica Granatum Seed Oil, Pyrus Malus (Apple) Seed Oil, Ricinoleic/Caproic/Caprylic/Capric Triglyceride(s), Ricinus Communis (Castor) Seed Oil, Rosa Canina Fruit Oil, Rosa Moschata Seed Oil, Rubus Idaeus (Raspberry) Seed Oil, Sesamum Indicum (Sesame) Seed Butter, Soybean Glycerides, Theobroma Cacao (Cocoa) Seed Butter, Theobroma Grandiflorum Seed Butter, Triticum Vulgare (Wheat) Bran Lipids, Triticum Vulgare (Wheat) Germ Oil, Vitis Vinifera (Grape) Seed Oil, Zea Mays (Corn) Germ Oil, and Zea Mays (Corn) Oil.
[0124] The above specified plant oils are the most common natural lipid components used as basic substances for the manufacture of cosmetics or pharmaceutical formulations.
[0125] Hydrocarbons (mineral oils) are in general organic compounds consisting entirely of hydrogen and carbon. As defined by IUPAC nomenclature or organic chemistry, the classifications for hydrocarbons are:
1. Saturated hydrocarbons are the simplest of the hydrocarbon species. They are composed entirely of single bonds and are saturated with hydrogen. The formula for acyclic saturated hydrocarbons (i.e., alkanes) is CnH2n+2.The most general form of saturated hydrocarbons is CnH2n+2(i-o, where r is the number of rings. Those with exactly one ring are the cycloalkanes. Saturated hydrocarbons are the basis of petroleum fuels and are found as either linear or branched species.
2. Unsaturated hydrocarbons have one or more double or triple bonds between carbon atoms. Those with double bond are called alkenes. Those with one double bond have the formula CnH2n (assuming non-cyclic structures). Those containing triple bonds are called alkynes. Those with one triple bond have the formula CnH2n-2.
3. Aromatic hydrocarbons, also known as arenes, are hydrocarbons that have at least one aromatic ring.
[0126] Hydrocarbons can be inter alia liquids (e.g. hexane and benzene), waxes or low melting solids (e.g. paraffin wax and naphthalene). The term 'aliphatic' refers to non-aromatic hydrocarbons. Saturated aliphatic hydrocarbons are sometimes referred to as “paraffins”. Mineral oils and waxes are mixtures of predominantly saturated hydrocarbons consisting of straight-chain, branched and ring structures with carbon chain lengths greater than C14. Mineral oils and waxes are chemical substances prepared from naturally occurring crude petroleum oil. They mainly consist of mineral oil saturated hydrocarbons (MOSH) and mineral oil aromatic hydrocarbons (MOAH). Hydrocarbons have been used for many decades in skin and lip care cosmetic products due to their excellent skin tolerance as well as their high protecting and cleansing performance and broad viscosity options. In contrast to vegetable oils, mineral oils are non-allergenic since they are highly stable and not susceptible to oxidation or rancidity.
[0127] A fatty alcohol (or long-chain alcohol) is usually a high-molecular-weight, straight-chain primary alcohol, but can also range from as few as 4 to 6 carbons to as many as 22 to 26, derived from natural fats and oils. The precise chain length varies with the source. Some commercially important fatty alcohols are lauryl, stearyl and oleyl alcohols. They are colorless oily liquids (for smaller carbon numbers) or waxy solids, although impure samples may appear yellow. Fatty alcohols usually have an even number of carbon atoms and a single alcohol group (-OH) attached to the terminal carbon. Some are unsaturated and some are branched. Most fatty alcohols in nature are found as waxes which are esters with fatty acids and fatty alcohols. The traditional sources of fatty alcohols have largely been various vegetable oils and these remain a large-scale feedstock. The alcohols are obtained from the triglycerides (fatty acid triesters), which form the bulk of the oil. The process involves the transesterification of the triglycerides to give methyl esters which are then hydrogenated to give the fatty alcohols. Fatty alcohols are also prepared from petrochemical sources. In the Ziegler process, ethylene is oligomerized using triethylaluminium followed by air oxidation. Alternatively, ethylene can be oligomerized to give mixtures of alkenes, which are subjected to hydroformylation, this process affording odd-numbered aldehyde, which is subsequently hydrogenated. Fatty alcohols are mainly used in the production of detergents and surfactants. They are components also of cosmetic solvents. They find use as co-emulsifiers, emollients and thickeners in cosmetics.
[0128] In a preferred embodiment, the fatty alcohol is selected from the group consisting of phenyl propanol, dimethyl phenylbutanol, hexyldecanol, octyldodecanol, octyldecanol, tridecylalcohol, isostearyl alcohol, phenylisohexanol, phenylpropanol, trimethylbenzenepropanol, isoamylalcohol, isostearyl alcohol, and isotridecyl alcohol. In a more preferred embodiment, the fatty alcohol is selected from the group consisting of hexyldecanol, octyldodecanol, phenylpropanol, isoamylalcohol, and mixtures of two or more of the aforesaid fatty alcohols. The fatty alcohol can be used either as a single component or in a mixture with one or more further different fatty alcohol(s) as specified above.
[0129] A fatty acid ester is a type of ester that results from the combination of a fatty acid with an alcohol. When the alcohol component is glycerol, the fatty acid esters produced can be monoglycerides, diglycerides or triglycerides. Fatty acid esters have a conditioning effect of softening the skin to create a smoothing sensation. They are also added to cosmetics to dissolve high-polarity active ingredients and UV absorbers. Esters of straight-chain fatty acids and lower alcohols are effective for dissolving slightly soluble ingredients for oils with a light touch during application. Isostearic acids and other liquid oils with branched fatty acids and unsaturated fatty acids are commonly used as emollients. Higher fatty acid esters and esters of higher alcohols with relatively high melting points are added to skin creams to adjust the application touch.
[0130] In addition to the oil phase or oil component as defined above, the sunscreen composition or cosmetic composition or cosmetic composition according to the presently claimed invention preferably includes one or more oil bodies. Suitable oil bodies, which form constituents of the O/W emulsions, are, for example, Guerbet alcohols based on fatty alcohols having 6 to 18, preferably 8 to 10, carbon atoms, esters of linear C5 - C22 fatty acids with linear or branched 05
- 022 fatty alcohols or esters of branched 01 - 013 carboxylic acids with linear or branched 06
- 022 fatty alcohols, such as, for example, myristyl myristate, myristyl palmitate, myristyl stearate, myristyl isostearate, myristyl oleate, myristyl behenate, myristyl erucate, cetyl myristate, cetyl palmitate, cetyl stearate, cetyl isostearate, cetyl oleate, cetyl behenate, cetyl erucate, stearyl myristate, stearyl palmitate, stearyl stearate, stearyl isostearate, stearyl oleate, stearyl behenate, stearyl erucate, isostearyl myristate, isostearyl palmitate, isostearyl stearate, isostearyl isostearate, isostearyl oleate, isostearyl behenate, isostearyl oleate, oleyl myristate, oleyl palmitate, oleyl stearate, oleyl isostearate, oleyl oleate, oleyl behenate, oleyl erucate, behenyl myristate, behenyl palmitate, behenyl stearate, behenyl isostearate, behenyl oleate, behenyl behenate, behenyl erucate, erucyl myristate, erucyl palmitate, erucyl stearate, erucyl isostearate, erucyl oleate, erucyl behenate and erucyl erucate. Also suitable are esters of linear 06 - C22 fatty acids with branched alcohols, in particular 2-ethylhexanol, esters of C18 - 038 alkylhydroxy carboxylic acids with linear or branched 06 - 022 fatty alcohols, in particular Dioctyl Malate, esters of linear and/or branched fatty acids with polyhydric alcohols (such as, for example, propylene glycol, dimerdiol or trimertriol) and/or Guerbet alcohols, triglycerides based on 06 - 010 fatty acids, liquid mono-/di-/triglyceride mixtures based on 06 - 018 fatty acids, esters of 06
- 022 fatty alcohols and/or Guerbet alcohols with aromatic carboxylic acids, in particular benzoic acid, esters of 02 - 012 dicarboxylic acids with linear or branched alcohols having 1 to 22 carbon atoms or polyols having 2 to 10 carbon atoms and 2 to 6 hydroxyl groups, vegetable oils, branched primary alcohols, substituted cyclohexanes, linear and branched CO - 022 fatty alcohol carbonates, such as, for example, Dicaprylyl Carbonate (Cetiol® CO), Guerbet carbonates, based on fatty alcohols having 6 to 18, preferably 8 to 10, carbon atoms, esters of benzoic acid with linear and/or branched C6-C22-alcohols (e.g. Finsolv® TN), linear or branched, symmetrical or asymmetrical dialkyl ethers having 6 to 22 carbon atoms per alkyl group, such as, for example, dicaprylyl ether (Cetiol® OE), ring-opening products of epoxidized fatty acid esters with polyols, silicone oils (cyclomethicones, silicone methicone grades, etc.) and/or aliphatic or naphthenic hydrocarbons, such as, for example, squalane, squalene or dialkylcyclohexanes.
[0131] The sunscreen composition or cosmetic composition or cosmetic composition according to the presently claimed invention may advantageously combined with further standard cosmetic excipients and/or active substances and/or additives and/or auxiliaries, such as are customarily used in such compositions, such as for example abrasives, anti-acne agents, agents against ageing of the skin, anti-cellulitis agents, anti-dandruff agents, anti-inflammatory agents, antimicrobial agents, irritation-preventing agents, irritation-inhibiting agents, antioxidants, astringents, odor absorbers, perspiration-inhibiting agents, antiseptic agents, anti-statics, binders, buffers, carrier materials, chelating agents, cell stimulants, cleansing agents, depilatory agents, surfaceactive substances, deodorizing agents, antiperspirants, softeners, emulsifiers, enzymes, enzyme inhibitors, essential oils, fibers, film-forming agents, fixatives, foam-forming agents, foam stabilizers, substances for preventing foaming, foam boosters, gelling agents, gel-forming agents, hair care agents, hair-setting agents, hair-straightening agents, moisture-donating agents, moisturizing substances, moisture-retaining substances, bleaching agents, strengthening agents, stain-removing agents, optically brightening agents, impregnating agents, dirt-repellent agents, dyes, friction-reducing agents, lubricants, moisturizing creams, ointments, opacifying agents, plasticizing agents, covering agents, polish, preservatives, gloss agents, green and synthetic polymers, powders, proteins, re-oiling agents, abrading agents, silicones, skin-soothing agents, skin-cleansing agents, skin care agents, skin-healing agents, skin-lightening agents, skinprotecting agents, skin-softening agents, hair promotion agents, cooling agents, skin-cooling agents, warming agents, skin-warming agents, stabilizers, surfactants, detergents, fabric conditioning agents, suspending agents, skin-tanning agents, actives modulating skin or hair pigmentation, matrix-metalloproteinase inhibitors, skin moisturizing agents, glycosaminoglycan stimulators, TRPV1 antagonists, desquamating agents, anti-cellulite agents or fat enhancing agents, hair growth activators or inhibitors, thickeners, rheology additives, vitamins, oils, waxes, pearlizing waxes, fats, phospholipids, saturated fatty acids, mono- or polyunsaturated fatty acids, a-hydroxy acids, polyhydroxyfatty acids, liquefiers, dyestuffs, colour-protecting agents, pigments, anti-corrosives, fragrances or perfume oils, aromas, flavouring substances, odoriferous substances, polyols, electrolytes, organic solvents, and mixtures of two or more of the aforesaid substances, as further described below.
[0132] Of the above cosmetical excipients and/or active substances and/or additives and/or auxiliaries such as emollients, rheology additives, silicones, dry-feel modifiers, skin moisturizing and/or moisture-retaining substances, lenitive substances, physiological cooling agents, antioxidants, emulsifiers, anti-microbial agents, preservatives, fragrances or perfume oils, and any mixture of two or more of the afore-mentioned substances are particularly preferred in the preparation of sunscreen compositions or cosmetic compositions.
[0133] Oil bodies and emollients: The sunscreen composition or cosmetic composition or cosmetic composition according to the presently claimed invention advantageously includes one or more oil bodies or emollients. An emollient is an oleaginous or oily substance which helps to smooth and soften the skin, and may also reduce its roughness, cracking or irritation. Especially, in sunscreen products emollients counteract the known stickiness of some UV filters and keep the crystalline and oil-soluble organic and inorganic UV filters solubilized and prevent them from recrystallisation. In addition, emollients serve as wetting agents for inorganic UV filters for a homogeneous dispersion in the formulations. Suitable oil bodies are, for example, Guerbet alcohols based on fatty alcohols having 6 to 18, preferably 8 to 10, carbon atoms, esters of linear Ce-C22-fatty acids with linear or branched Ce-022-fatty alcohols or esters of branched Ce-C 13- carboxylic acids with linear or branched Ce-C 22-fatty alcohols, such as, for example, myristyl myristate, myristyl palmitate, myristyl stearate, myristyl isostearate, myristyl oleate, myristyl behenate, myristyl erucate, cetyl myristate, cetyl palmitate, cetyl stearate, cetyl isostearate, cetyl oleate, cetyl behenate, cetyl erucate, stearyl myristate, stearyl palmitate, stearyl stearate, stearyl isostearate, stearyl oleate, stearyl behenate, stearyl erucate, isostearyl myristate, isostearyl palmitate, isostearyl stearate, isostearyl isostearate, isostearyl oleate, isostearyl behenate, isostearyl oleate, oleyl myristate, oleyl palmitate, oleyl stearate, oleyl isostearate, oleyl oleate, oleyl behenate, oleyl erucate, behenyl myristate, behenyl palmitate, behenyl stearate, behenyl isostearate, behenyl oleate, behenyl behenate, behenyl erucate, erucyl myristate, erucyl palmitate, erucyl stearate, erucyl isostearate, erucyl oleate, erucyl behenate and erucyl erucate. Also suitable are esters of linear Ce-C22-fatty acids with branched alcohols, in particular 2- ethylhexanol, esters of C18-C38- alkylhydroxy carboxylic acids with linear or branched Ce-C 22-fatty alcohols, in particular Dioctyl Malate, esters of linear and/or branched fatty acids with polyhydric alcohols (such as, for example, propylene glycol, dimerdiol or trimertriol) and/or Guerbet alcohols, triglycerides based on Ce -Cw-fatty acids, liquid mono-/di-/triglyceride mixtures based on Ce-Cis- fatty acids, esters of Ce- C22-fatty alcohols and/or Guerbet alcohols with aromatic carboxylic acids, in particular benzoic acid, esters of C2- Ci2-dicarboxylic acids with linear or branched alcohols having 1 to 22 carbon atoms or polyols having 2 to 10 carbon atoms and 2 to 6 hydroxyl groups, vegetable oils, branched primary alcohols, substituted cyclohexanes, linear and branched C6-C22- fatty alcohol carbonates, such as, for example, Dicaprylyl Carbonate (Cetiol® CC), Guerbet carbonates, based on fatty alcohols having 6 to 18, preferably 8 to 10, carbon atoms, esters of benzoic acid with linear and/or branched Ce-C22-alcohols (e.g. Finsolv® TN), linear or branched, symmetrical or a symmetrical dialkyl ethers having 6 to 22 carbon atoms per alkyl group, such as, for example, dicaprylyl ether (Cetiol® OE), ring-opening products of epoxidized fatty acid esters with polyols, silicone oils (cyclomethicones, silicone methicone grades, etc.) and/or aliphatic or naphthenic hydrocarbons, such as, for example, squalane, squalene or dialkylcyclohexanes and any mixture thereof.
[0134] In a preferred embodiment, the sunscreen composition or cosmetic composition or cosmetic composition according to the presently claimed invention comprises a blend comprising ethylhexyl acetoxystearate; diethylhexyl-2,6-napthalate and/or dimethyl isosorbide, and propanediol dicaprylate/caprate (SymSol® PROSUN) as described in PCT/EP2022/081701.
[0135] Rheology modifiers: The sunscreen composition or cosmetic composition or cosmetic composition according to the presently claimed invention advantageously includes one or more thickening agents and/or rheology modifier. The rheology modifier is present in an amount that prevents significant dripping or pooling of the composition after application to the skin. Preferably, the rheology modifier is a carbomer. In some embodiments, the rheology modifier is selected from stearic acid, palmitic acid, stearyl alcohol, cetyl alcohol, behenyl alcohol, stearic acid, palmitic acid, the polyethylene glycol ether of stearyl alcohol having an average of about 1 to about 21 ethylene oxide units, the polyethylene glycol ether of cetyl alcohol having an average of about 1 to about 5 ethylene oxide units, and mixtures thereof.
[0136] Additional example of rheology modifiers include thickener or gelling agents, including substances which can increase the viscosity of a composition. Thickening agents include those that can increase the viscosity of a composition without substantially modifying the efficacy of the active ingredient within the formulation. Thickening agents can also increase the stability of the formulations of the present application. In certain aspects of the present application, thickening agents include hydrogenated polyisobutene or trihydroxy stearin, or a mixture of both. Additional non-limiting examples of additional thickening agents that can be used in the context of the present application include carboxylic acid polymers, crosslinked polyacrylate polymers, polyacrylamide polymers, polysaccharides, and gums. Examples of carboxylic acid polymers include crosslinked compounds containing one or more monomers derived from acrylic acid, substituted acrylic acids, and salts and esters of these acrylic acids and the substituted acrylic acids, wherein the crosslinking agent contains two or more carbon-carbon double bonds and is derived from a polyhydric alcohol (see CTFA International Cosmetic Ingredient Dictionary, Fourth Edition, 1991 , pp. 12 and 80). Examples of commercially available carboxylic acid polymers include carbomers, which are homopolymers of acrylic acid crosslinked with allyl ethers of sucrose or pentaerythritol (e.g., Carbopol™ 900 series from B. F. Goodrich). Non-limiting examples of crosslinked polyacrylate polymers include cationic and nonionic polymers.
[0137] Non-limiting examples of polyacrylamide polymers (including nonionic polyacrylamide polymers including substituted branched or unbranched polymers) include polyacrylamide, isoparaffins and Laureth-7, multi-block copolymers of acrylamides and substituted acrylamides with acrylic acids and substituted acrylic acids.
[0138] Non-limiting examples of polysaccharides include cellulose, carboxymethyl hydroxyethylcellulose, cellulose acetate propionate carboxylate, hydroxyethylcellulose, hydroxyethyl ethylcellulose, hydroxypropyl cellulose, hydroxypropyl methylcellulose, methyl hydroxyethylcellulose, microcrystalline cellulose, sodium cellulose sulfate, and mixtures thereof. Another example is an alkyl substituted cellulose where the hydroxy groups of the cellulose polymer are hydroxyalkylated (preferably hydroxy ethylated or hydroxypropylated) to form a hydroxyalkylated cellulose which is then further modified with a C10-C30 straight chain or branched chain alkyl group through an ether linkage. Typically, these polymers are ethers of C10- 030 straight or branched chain alcohols with hydroxyalkylcelluloses. Other useful polysaccharides include scleroglucans comprising a linear chain of (1-3) linked glucose units with a (1-6) linked glucose every three unit.
[0139] Non-limiting examples of gums that can be used with the present compositions include acacia, agar, algin, alginic acid, ammonium alginate, amylopectin, calcium alginate, calcium carrageenan, carnitine, carrageenan, dextrin, gelatin, gellan gum, guar gum, guar hydroxypropyltrimonium chloride, hectorite, hyaluronic acid, hydrated silica, hydroxypropyl chitosan, hydroxypropyl guar, karaya gum, kelp, locust bean gum, natto gum, potassium alginate, potassium carrageenan, propylene glycol alginate, sclerotium gum, sodium carboxymethyl dextran, sodium carrageenan, tragacanth gum, xanthan gum, and mixtures thereof. In one embodiment, the thickening agent is Chondrus crispus (carrageenan) extract.
[0140] Water resistance improving agents: The sunscreen composition or cosmetic composition or cosmetic composition according to the presently claimed invention may advantageously include one or more agents for improving water resistance. An agent for improving water resistance is a hydrophobic material that imparts film forming and water resistance characteristics to an emulsion. Typical suitable water resistance improving agents include copolymers derived from polymerization of octadecene- 1 and maleic anhydride. A preferred water resistance improving agent is a polyanhydride resin. Another preferred water resistance improving agent is a copolymer of vinyl pyrrolidone and eicosene monomers. The water resistance improving agent(s) is/are used in amounts effective to allow the final formulation to remain on the skin or surface after exposure to circulating water for at least 40 minutes, preferably 80 minutes. One or more water resistance improving agents can optionally be included in the final formulation in an amount ranging from 0.01 to 10.0 % by weight, preferably 0.05 to 8.0 % by weight, more preferably 0.1 to 5.0 % by weight, based on the total weight of the final formulation.
[0141] Silicones: In order to impart a silky, spreadable, and luxurious texture and to make skin look and feel smoother, and additionally to improve processability (antifoaming) the sunscreen product or cosmetic or pharmaceutical preparation according to the presently claimed invention preferably includes one or more silicones or silicone derivatives. Suitable silicones can be chosen from the group consisting of Acefylline Methylsilanol Mannuronate, Acetylmethionyl Methylsilanol Elastinate Acrylates/Behenyl, Acrylate/Dimethicone Methacrylate Copolymer, Acrylates/Behenyl Methacrylate/Dimethicone Methacrylate Copolymer, Acrylates/Bis-Hydroxypropyl Dimethicone Crosspolymer, Acrylates/Dimethicone Copolymer, Acrylates/Dimethicone Methacrylate/Ethylhexyl Acrylate Copolymer, Acrylates/Dimethiconol Acrylate Copolymer, Acrylates/Ethylhexyl Acrylate/Dimethicone Methacrylate Copolymer, Acrylates/Octyl- acrylamide/Diphenyl Amodimethicone Copolymer, Acrylates/Polytrimethylsiloxymethacrylate Copolymer, Acrylates/Propyl Trimethicone Methacrylate Copolymer, Acrylates/Stearyl Acrylate/Dimethicone Methacrylate Copolymer, Acrylates/Tridecyl Acrylate/Triethoxysilylpropyl Methacrylate/Dimethicone Methacrylate Copolymer,
Acrylates/Trifluoropropylmethacrylate/Polytrimethyl Siloxymethacrylate Copolymer, Amino Bispropyl Dimethicone, Aminoethylaminopropyl Dimethicone, Aminopropyl Dimethicone, Aminopropyl Phenyl Trimethicone, Aminopropyl Triethoxysilane, Ammonium Dimethicone PEG- 7 Sulfate, Amodimethicone, Amodimethicone Hydroxystearate, Amodimethicone/Silsesquioxane Copolymer, Ascorbyl Carboxydecyl Trisiloxane, Ascorbyl Methylsilanol Pectinate, Behenoxy Dimethicone, Behentrimonium Dimethicone PEG-8 Phthalate, Behenyl Dimethicone, Bisamino PEG/PPG-41/3 Aminoethyl PG-Propyl Dimethicone, Bis-Aminopropyl/Ethoxy Aminopropyl Dimethicone, Bis(Butylbenzoate) Diaminotriazine Aminopropyltrisiloxane, Bis-Butyldimethicone Polyglyceryl-3, Bis-Butyloxyamodimethicone/PEG-60 Copolymer, Bis(C13-15 Alkoxy) Hydroxybutamidoamodimethicone, Bis(C13-15 Alkoxy) PG- Amodimethicone, Bis-(C1-8 Alkyl Lauroyl Lysine Decylcarboxamide) Dimethicone, Bis-Cetyl Cetyl Dimethicone, Bis-Cetyl/PEG-8 Cetyl PEG-8 Dimethicone, Bis-Diphenylethyl Disiloxane, Bis-Ethyl Ethyl Methicone, Bis- Gluconamidoethylaminopropyl Dimethicone, Bis-Hydrogen Dimethicone, Bis- Hydroxyethoxypropyl Dimethicone Bis-Hydroxylauryl, Dimethicone/IPDI Copolymer, Bis- Hydroxy/Methoxy Amodimethicone, Bis-Hydroxypropyl Dimethicone Behenate, Bis- Hydroxypropyl Dimethicone/SMDI Copolymer, Bis-lsobutyl PEG-14/Amodimethicone Copolymer, Bis-lsobutyl PEG- 15/Amodimethicone Copolymer, Bis-lsobutyl PEG/PPG- 20/35/Amodimethicone Copolymer, Bis- Isobutyl PEG/PPG-10/7/Dimethicone Copolymer, Bis- lsobutyl PEG-24/PPG-7/Dimethicone Copolymer, Bis-PEG-1 Dimethicone, Bis-PEG-4 Dimethicone, Bis-PEG-8 Dimethicone, Bis-PEG-12 Dimethicone, Bis-PEG-20 Dimethicone, Bis- PEG-12 Dimethicone Beeswax, Bis-PEG-12 Dimethicone Candelillate, Bis-PEG-15 Dimethicone/IPDI Copolymer, Bis-PEG-15 Methyl Ether Dimethicone, Bis- PEG-18 Methyl Ether Dimethyl Silane, Bis-PEG/PPG-14/14 Dimethicone, Bis-PEG/PPG-15/5 Dimethicone, Bis- PEG/PPG-18/6 Dimethicone, Bis-PEG/PPG-20/20 Dimethicone, Bis-PEG/PPG- 16/16 PEG/PPG-16/16 Dimethicone, Bis-PEG/PPG-20/5 PEG/PPG-20/5 Dimethicone, Bisphenylhexamethicone, Bis-Phenylpropyl Dimethicone, Bispolyethylene Dimethicone, Bis- (Polyglyceryl-3 Oxyphenylpropyl) Dimethicone, Bis-(Polyglyceryl-7 Oxyphenylpropyl) Dimethicone, Bis-PPG-15 Dimethicone/IPDI Copolymer, Bis(PPG-7 Undeceneth-21) Dimethicone, Bis-Stearyl Dimethicone, Bis-Trimethoxysilylethyl Tetramethyldisiloxyethyl Dimethicone, Bis-Vinyldimethicone, Bis-Vinyl Dimethicone/Dimethicone Copolymer, Borage Seed Oil PEG-7 Dimethicone Esters, Butyl Acrylate/C6-14 Perfluoroalkylethyl Acrylate/Mercaptopropyl Dimethicone Copolymer, Butyl Acrylate/Hydroxypropyl Dimethicone Acrylate Copolymer, Butyl Dimethicone Acrylate/Cyclohexylmethacrylate/Ethylhexyl Acrylate Copolymer, Butyldimethicone Methacrylate/Methyl Methacrylate Crosspolymer, t-Butyl Dimethyl Silyl Grape Seed Extract, Butyl Polydimethylsiloxyl Ethylene/Propylene/Vinylnorbornene Copolymer, C6-8 Alkyl C3-6 Alkyl Glucoside Dimethicone, C20-24 Alkyl Dimethicone, C24-28 Alkyl Dimethicone, C26-28 Alkyl Dimethicone, C30-45 Alkyl Dimethicone, C30-60 Alkyl Dimethicone, C32 Alkyl Dimethicone, C30-45 Alkyl Dimethicone/Polycyclohexene Oxide Crosspolymer, C26-28 Alkyldimethylsilyl Polypropylsilsesquioxane, C30-45 Alkyldimethylsilyl Polypropylsilsesquioxane, C20-24 Alkyl Methicone, C24-28 Alkyl Methicone, C26-28 Alkyl Methicone, C30-45 Alkyl Methicone, C20-28 Alkyl Perfluorodecylethoxy Dimethicone, C26-54 Alkyl Tetradecyl Dimethicone, Capryl Dimethicone, Caprylyl Dimethicone Ethoxy Glucoside, Caprylyl Methicone, Caprylyl Trimethicone, Carboxydecyl Trisiloxane, Castor Oil Bis- Hydroxypropyl Dimethicone Esters Cerotyl Dimethicone, Cetearyl Dimethicone Crosspolymer, Cetearyl Dimethicone/Vinyl Dimethicone Crosspolymer, Cetearyl Methicone, Cetrimonium Carboxydecyl PEG-8 Dimethicone, Cetrimonium Dimethicone PEG-7 Phthalate, Cetyl Behenyl Dimethicone, Cetyl Dimethicone, Cetyl Dimethicone/Bis-Vinyldimethicone Crosspolymer, Cetyl HexacoSY-l Dimethicone, Cetyloxy Dimethicone, Cetyl PEG-8 Dimethicone, Cetyl PEG/PPG- 15/15 Butyl Ether Dimethicone, Cetyl PEG/PPG-7/3 Dimethicone, Cetyl PEG/PPG-10/1 Dimethicone, Cetyl Triethylmonium Dimethicone PEG-8 Phthalate, Cetyl Triethylmonium Dimethicone PEG-8 Succinate, Copper Acetyl Tyrosinate Methylsilanol, Copper PCA Methylsilanol, C4-14 Perfluoroalkylethoxy Dimethicone, Cycloethoxymethicone, Cycloheptasiloxane, Cyclohexasiloxane, Cyclomethicone, Cyclopentasiloxane, Cyclophenylmethicone, Cyclotetrasiloxane, mCyclovinylmethicone, Cystine Bis-PG-Propyl Silanetriol, DEA PG-Propyl PEG/PPG-18/21 Dimethicone, Diisostearoyl Trimethylolpropane Siloxy Silicate, Dilauroyl Trimethylolpropane Siloxy Silicate, Dilinoleamidopropyl Dimethylamine Dimethicone PEG-7 Phosphate, Dimethicone, Dimethicone Crosspolymer, Dimethicone Crosspolymer-3, Dimethicone/Divinyldimethicone/Silsesquioxane Crosspolymer, Dimethicone Ethoxy Glucoside, Dimethicone Hydroxypropyl Trimonium Chloride, Dimethicone/Mercaptopropyl Methicone Copolymer, Dimethicone PEG-15 Acetate Dimethicone PEG-8 Adipate, Dimethicone PEG-7 Avocadoate, Dimethicone PEG-8 Avocadoate, Dimethicone PEG-8 Beeswax, Dimethicone PEG-8 Benzoate, Dimethicone PEG-8 Borageate, Dimethicone PEG-7 Cocoate, Dimethicone/PEG-10 Crosspolymer, Dimethicone/PEG-10/15 Crosspolymer, Dimethicone/PEG- 15 Crosspolymer, Dimethicone PEG-7 Isostearate, Dimethicone PEG-8 Isostearate, Dimethicone PEG-7 Lactate, Dimethicone PEG-8 Lanolate, Dimethicone PEG-8 Laurate, Dimethicone PEG-8 Meadowfoamate, Dimethicone PEG-7 Octyldodecyl Citrate, Dimethicone PEG-7 Olivate, Dimethicone PEG-8 Olivate, Dimethicone PEG-7 Phosphate, Dimethicone PEG-8 Phosphate, Dimethicone PEG-10 Phosphate, Dimethicone PEG-7 Phthalate, Dimethicone PEG-8 Phthalate, Dimethicone PEG-8 Polyacrylate, Dimethicone PEG/PPG- 20/23 Benzoate, Dimethicone PEG/PPG-7/4 Phosphate, Dimethicone PEG/PPG- 12/4 Phosphate, Dimethicone PEG-7 Succinate, Dimethicone PEG-8 Succinate, Dimethicone PEG-7 Sulfate, Dimethicone PEG-7 Undecylenate, Dimethicone PG-Diethylmonium Chloride, Dimethicone/Phenyl Vinyl Dimethicone Crosspolymer, Dimethicone/Polyglycerin-3 Crosspolymer, Dimethicone/PPG-20 Crosspolymer, Dimethicone Propylethylenediamine Behenate, Dimethicone Propyl PG-Betaine, Dimethicone/Silsesquioxane Copolymer, Dimethicone Silylate, Dimethicone/Vinyl Dimethicone Crosspolymer, Dimethicone/Vinyltrimethylsiloxysilicate Crosspolymer, Dimethiconol, Dimethiconol Arginine, Dimethiconol Beeswax, Dimethiconol Behenate, Dimethiconol Borageate, Dimethiconol Candelillate, Dimethiconol Carnaubate, Dimethiconol Cysteine, Dimethiconol Dhupa Butterate, Dimethiconol Fluoroalcohol Dilinoleic Acid, Dimethiconol Hydroxystearate, Dimethiconol lllipe Butterate, Dimethiconol/IPDI Copolymer, Dimethiconol Isostearate, Dimethiconol Kokum Butterate, Dimethiconol Lactate, Dimethiconol Meadowfoamate, Dimethiconol Methionine, Dimethiconol/Methylsilanol/Silicate Crosspolymer, Dimethiconol Mohwa Butterate, Dimethiconol Panthenol, Dimethiconol Sal Butterate, Dimethiconol/Silica Crosspolymer, Dimethiconol/Silsesquioxane Copolymer, Dimethiconol Stearate, Dimethiconol/Stearyl, Methicone/Phenyl Trimethicone Copolymer, Dimethoxysilyl Ethylenediaminopropyl Dimethicone, Dimethylaminopropylamido PCA Dimethicone, Dimethyl Oxobenzo Dioxasilane, Dimethylsilanol Hyaluronate, Dioleyl Tocopheryl Methylsilanol, Diphenyl Amodimethicone, Diphenyl Dimethicone, Diphenyl Dimethicone Crosspolymer, Diphenyl Dimethicone/Silsesquioxane Crosspolymer, Diphenylethyl Benzyloxy Dilsiloxane, Diphenylisopropyl Dimethicone, Diphenylsiloxy Phenyl/Propyl Trimethicone, Diphenylsiloxy Phenyl Trimethicone Disiloxane, Disodium Amodimethicone Disuccinamide, Disodium PEG-12 Dimethicone Sulfosuccinate, Disodium PEG-8 Lauryl Dimethicone Sulfosuccinate, Divinyldimethicone/Dimethicone Copolymer, Divinyldimethicone/Dimethicone Crosspolymer, Drometrizole Trisiloxane, Ethylhexyl Acrylate/VP/Dimethicone Methacrylate Copolymer, Ethyl Methicone, Ethyl Trisiloxane, Fluoro C2-8 Alkyldimethicone, Gluconamidopropyl Aminopropyl Dimethicone, 4-(2-Beta-Glucopyranosiloxy) Propoxy-2-Hydroxybenzophenone, Glyceryl Undecyl Dimethicone, Glycidoxy Dimethicone, Hexadecyl Methicone, Hexyl Dimethicone, Hexyl Methicone, Hexyltrimethoxysilane, Hydrogen Dimethicone, Hydrogen Dimethicone/Octyl Silsesquioxane Copolymer, Hydrolyzed Collagen PG-Propyl Dimethiconol, Hydrolyzed Collagen PG-Propyl Methylsilanediol, Hydrolyzed Collagen PG-Propyl Silanetriol, Hydrolyzed Keratin PG- Propyl Methylsilanediol, Hydrolyzed Sesame Protein PG-Propyl Methylsilanediol, Hydrolyzed Silk PG-Propyl Methylsilanediol, Hydrolyzed Silk PG-Propyl Methylsilanediol Crosspolymer, Hydrolyzed Soy Protein/Dimethicone PEG-7 Acetate, Hydrolyzed Soy Protein PG-Propyl Methylsilanediol, Hydrolyzed Vegetable Protein PG-Propyl Silanetriol, Hydrolyzed Wheat Protein/Cystine Bis-PG-Propyl Silanetriol Copolymer, Hydrolyzed Wheat Protein/Dimethicone PEG-7 Acetate, Hydrolyzed Wheat Protein/Dimethicone PEG-7 Phosphate Copolymer, Hydrolyzed Wheat Protein PG-Propyl Methylsilanediol, Hydrolyzed Wheat Protein PG-Propyl Silanetriol, Hydroxyethyl Acetomonium PG-Dimethicone, Hydroxypropyldimethicone, Hydroxypropyl Dimethicone Behenate, Hydroxypropyl Dimethicone Isostearate, Hydroxypropyl Dimethicone Stearate, Isobutylmethacrylate/Bis-Hydroxypropyl Dimethicone Acrylate Copolymer, Isobutylmethacrylate/T rifluoroethylmethacrylate/Bis-Hydroxypropyl Dimethicone Acrylate Copolymer, Isopentyl Trimethoxycinnamate Trisiloxane, lsopolyglyceryl-3 Dimethicone, lsopolyglyceryl-3 Dimethiconol, Isopropyl Titanium Triisostearate/Triethoxysilylethyl, Polydimethylsiloxyethyl Dimethicone Crosspolymer, Isostearyl Carboxydecyl PEG-8 Dimethicone, Lactoyl Methylsilanol Elastinate, Lauryl Dimethicone, Lauryl Dimethicone PEG-15 Crosspolymer, Lauryl Dimethicone PEG- 10 Phosphate, Lauryl Dimethicone/Polyglycerin-3 Crosspolymer, Lauryl Methicone, Lauryl PEG-8 Dimethicone, Lauryl PEG-10 Methyl Ether Dimethicone, Lauryl PEG-9 Polydimethylsiloxyethyl Dimethicone, Lauryl PEG/PPG-18/18 Methicone, Lauryl Phenylisopropyl Methicone, Lauryl Phenylpropyl Methicone, Lauryl Polydimethylsiloxyethyl Dimethicone/Bis-Vinyldimethicone Crosspolymer, Lauryl Polyglyceryl-3 Polydimethylsiloxyethyl Dimethicone, Lauryl Trimethicone, Linoleamidopropyl PG-Dimonium Chloride Phosphate Dimethicone, Methacryloyl Propyltrimethoxysilane, Methicone, Methoxy Amodimethicone/Silsesquioxane Copolymer, Methoxycinnamidopropyl Polysilsesquioxane, Methoxycinnamoylpropyl Silsesquioxane Silicate, Methoxy PEG-13 Ethyl Polysilsesquioxane, Methoxy PEG/PPG-7/3 Aminopropyl Dimethicone, Methoxy PEG/PPG-25/4 Dimethicone, Methoxy PEG-10 Propyltrimethoxysilane, Methyleugenyl PEG- 8 Dimethicone, Methylpolysiloxane Emulsion, Methylsilanol Acetylmethionate, Methylsilanol Acetyltyrosine, Methylsilanol Ascorbate, Methylsilanol Carboxymethyl Theophylline, Methylsilanol Carboxymethyl Theophylline Alginate, Methylsilanol Elastinate, Methylsilanol Glycyrrhizinate, Methylsilanol Hydroxyproline, Methylsilanol Hydroxyproline Aspartate, Methylsilanol Mannuronate, Methylsilanol PCA, Methylsilanol PEG-7 Glyceryl Cocoate, Methylsilanol/Silicate Crosspolymer, Methylsilanol Spirulinate, Methylsilanol Tri-PEG-8 Glyceryl Cocoate, Methyl Trimethicone, Methyltrimethoxysilane, Myristylamidopropyl Dimethylamine Dimethicone PEG-7 Phosphate, Myristyl Methicone, Myristyl Trisiloxane, Nylon-611/Dimethicone Copolymer, PCA Dimethicone, PEG-7 Amodimethicone, PEG-8 Amodimethicone, PEG-8 Cetyl Dimethicone, PEG- 3 Dimethicone, PEG-6 Dimethicone, PEG-7 Dimethicone, PEG-8 Dimethicone, PEG-9 Dimethicone, PEG-10 Dimethicone, PEG-12 Dimethicone, PEG-14 Dimethicone, PEG-17 Dimethicone, PEG-10 Dimethicone Crosspolymer, PEG-12 Dimethicone Crosspolymer, PEG-8 Dimethicone Dimer Dilinoleate, PEG-8 Dimethicone/Dimer Dilinoleic Acid Copolymer, PEG-10 Dimethicone/Vinyl Dimethicone Crosspolymer, PEG-8 Distearmonium Chloride PG-Dimethicone, PEG-10/Lauryl Dimethicone Crosspolymer, PEG- 15/Lauryl Dimethicone Crosspolymer, PEG- 15/Lauryl Polydimethylsiloxyethyl Dimethicone Crosspolymer, PEG-8 Methicone, PEG-6 Methicone Acetate, PEG-6 Methyl Ether Dimethicone, PEG- 7 Methyl Ether Dimethicone, PEG-8 Methyl Ether Dimethicone, PEG-9 Methyl Ether Dimethicone, PEG-10 Methyl Ether Dimethicone, PEG-11 Methyl Ether Dimethicone, PEG-32 Methyl Ether Dimethicone, PEG-8 Methyl Ether Triethoxysilane, PEG-10 Nonafluorohexyl Dimethicone Copolymer, PEG-4 PEG-12 Dimethicone, PEG-8 PG-Coco-Glucoside Dimethicone, PEG-9 Polydimethylsiloxyethyl Dimethicone, PEG/PPG-20/22 Butyl Ether Dimethicone, PEG/PPG-22/22 Butyl Ether Dimethicone, PEG/PPG- 23/23 Butyl Ether Dimethicone, PEG/PPG-24/18 Butyl Ether Dimethicone, PEG/PPG-27/9 Butyl Ether Dimethicone, PEG/PPG-3/10 Dimethicone, PEG/PPG-4/12 Dimethicone, PEG/PPG-6/4 Dimethicone, PEG/PPG-6/11 Dimethicone, PEG/PPG-8/14 Dimethicone, PEG/PPG-8/26 Dimethicone, PEG/PPG-10/2 Dimethicone, PEG/PPG-12/16 Dimethicone, PEG/PPG- 12/18
Dimethicone, PEG/PPG-14/4 Dimethicone, PEG/PPG-15/5 Dimethicone, PEG/PPG- 15/15 Dimethicone, PEG/PPG-16/2 Dimethicone, PEG/PPG-16/8 Dimethicone, PEG/PPG-17/18 Dimethicone, PEG/PPG-18/6 Dimethicone, PEG/PPG-18/12 Dimethicone, PEG/PPG-18/18 Dimethicone, PEG/PPG-19/19 Dimethicone, PEG/PPG-20/6 Dimethicone, PEG/PPG-20/15 Dimethicone, PEG/PPG-20/20 Dimethicone, PEG/PPG-20/23 Dimethicone, PEG/PPG-20/29 Dimethicone, PEG/PPG-22/23 Dimethicone, PEG/PPG-22/24 Dimethicone, PEG/PPG-23/6 Dimethicone, PEG/PPG-25/25 Dimethicone, PEG/PPG-27/27 Dimethicone, PEG/PPG-30/10 Dimethicone, PEG/PPG-25/25 Dimethicone/Acrylates Copolymer, PEG/PPG-20/22 Methyl Ether Dimethicone, PEG/PPG-24/24 Methyl Ether Glycidoxy Dimethicone, PEG/PPG-10/3 Oleyl Ether
Dimethicone, PEG/PPG-5/3 Trisiloxane, PEG-4 Trifluoropropyl Dimethicone Copolymer, PEG-8
Trifluoropropyl Dimethicone Copolymer, PEG-10 Trifluoropropyl Dimethicone Copolymer, PEG-8
Trisiloxane, Perfluorocaprylyl riethoxysilylethyl Methicone, Perfluorononyl Dimethicone, Perfluorononyl Dimethicone/Methicone/Amodimethicone Crosspolymer, Perfluorononylethyl Carboxydecyl Behenyl Dimethicone, Perfluorononylethyl Carboxydecyl HexacoSY-l Dimethicone, Perfluorononylethyl Carboxydecyl Lauryl/Behenyl Dimethicone, Perfluorononylethyl Carboxydecyl Lauryl Dimethicone, Perfluorononylethyl Carboxydecyl PEG-8 Dimethicone, Perfluorononylethyl Carboxydecyl PEG-10 Dimethicone, Perfluorononylethyl Dimethicone/Methicone Copolymer, Perfluorononylethyl PEG-8 Dimethicone, Perfluorononylethyl Stearyl Dimethicone, Perfluorooctylethyl/Diphenyl Dimethicone Copolymer, Perfluorooctylethyl Triethoxysilane, Perfluorooctylethyl Trimethoxysilane, Perfluorooctylethyl Trisiloxane, Perfluorooctyl Triethoxysilane, PG-Amodimethicone, Phenethyl Dimethicone, Phenethyl Disiloxane, Phenyl Dimethicone, Phenylisopropyl Dimethicone, Phenyl Methicone, Phenyl Methiconol, Phenylpropyldimethylsiloxysilicate, Phenylpropyl Ethyl Methicone, Phenyl Propyl Trimethicone, Phenyl Propyl Trimethicone/Diphenylmethicone, Phenyl Trimethicone, Platinum Divinyldisiloxane, Polyacrylate-6, Polydiethylsiloxane, Polydimethylsiloxyethyl Dimethicone/Bis-Vinyldimethicone Crosspolymer, Polydimethylsiloxyethyl
Dimethicone/Methicone Copolymer, Polydimethylsiloxy PEG/PPG-24/19 Butyl Ether Silsesquioxane, Polydimethylsiloxy PPG- 13 Butyl Ether Silsesquioxane, Polyglyceryl-3 Disiloxane Dimethicone, Polyglyceryl-3/Lauryl Polydimethylsiloxyethyl Dimethicone Crosspolymer, Polyglyceryl-3 Polydimethylsiloxyethyl Dimethicone, Poly(Glycol Adipate)/Bis- Hydroxyethoxypropyl Dimethicone Copolymer, Polymethylsilsesquioxane, Polymethylsilsesquioxane/Trimethylsiloxysilicate, Polyphenylsilsesquioxane,
Polypropylsilsesquioxane, Polysilicone-1 , Polysilicone-2, Polysilicone-3, Polysilicone-4, Polysilicone-5, Polysilicone-6, Polysilicone-7, Polysilicone-8, Polysilicone-9, Polysilicone-10, Polysilicone-11 , Polysilicone-12, Polysilicone-13, Polysilicone-14, Polysilicone-15, Polysilicone- 16, Polysilicone-17, Polysilicone-18, Polysilicone-19, Polysilicone-20, Polysilicone-21 , Polysilicone-18 Cetyl Phosphate, Polysilicone-1 Crosspolymer, Polysilicone-18 Stearate, Polyurethane-10, Potassium Dimethicone PEG-7 Panthenyl Phosphate, Potassium Dimethicone PEG- 7 Phosphate, PPG-12 Butyl Ether Dimethicone, PPG-2 Dimethicone, PPG-12 Dimethicone, PPG-27 Dimethicone, PPG-4 Oleth-10 Dimethicone, Propoxytetramethyl Piperidinyl Dimethicone, Propyl Trimethicone, Quaternium-80, Retinoxytrimethylsilane, Silanediol Salicylate, Silanetriol, Silanetriol Arginate, Silanetriol Glutamate, Silanetriol Lysinate, Silanetriol Melaninate, Silanetriol Trehalose Ether, Silica, Silica Dimethicone Silylate, Silica Dimethyl Silylate, Silica Silylate, Silicon Carbide, Silicone Quaternium-1 , Silicone Quaternium-2, Silicone Quaternium-2 Panthenol Succinate, Silicone Quaternium-3, Silicone Quaternium-4, Silicone Quaternium-5, Silicone Quaternium-6, Silicone Quaternium-7, Silicone Quaternium-8, Silicone Quaternium-9, Silicone Quaternium-10, Silicone Quaternium-11 , Silicone Quaternium-12, Silicone Quaternium- 15, SiliconeQuaternium-16, Silicone Quaternium-16/Glycidoxy Dimethicone Crosspolymer, Silicone Quaternium-17, Silicone Quaternium- 18, Silicone Quaternium-19, Silicone Quaternium- 20, Silicone Quaternium-21 , Silicone Quaternium- 22, Silicone Quaternium-24, Silicone Quaternium-25, Siloxanetriol Alginate, Siloxanetriol Phytate, Simethicone, Sodium Carboxydecyl PEG-8 Dimethicone, Sodium Dimethicone PEG-7 Acetyl Methyltaurate, Sodium Hyaluronate Dimethylsilanol, Sodium Lactate Methylsilanol, Sodium Mannuronate Methylsilanol, Sodium PCA Methylsilanol, Sodium PG-Propyldimethicone Thiosulfate Copolymer, Sodium PG-Propyl Thiosulfate Dimethicone, Sodium Propoxyhydroxypropyl Thiosulfate Silica, Sorbityl Silanediol, Soy Triethoxysilylpropyldimonium Chloride, Stearalkonium Dimethicone PEG-8 Phthalate, Stearamidopropyl Dimethicone, Steardimonium Hydroxypropyl Panthenyl PEG-7 Dimethicone Phosphate Chloride, Steardimonium Hydroxypropyl PEG-7 Dimethicone Phosphate Chloride, Stearoxy Dimethicone, Stearoxymethicone/Dimethicone Copolymer, Stearoxytrimethylsilane, Stearyl Aminopropyl Methicone, Stearyl Dimethicone, Stearyl/Lauryl Methacrylate Crosspolymer, Stearyl Methicone, Stearyl Triethoxysilanek, Stearyl Trimethicone, Styrene/Acrylates/Dimethicone Acrylate Crosspolymer, Styrene/Acrylates/Dimethicone Copolymer, TEA-Dimethicone PEG-7 Phosphate, Tetrabutoxypropyl Trisiloxane, Tetramethyl
Hexaphenyl Tetrasiloxane, Tetramethyl Tetraphenyl Trisiloxane, Tocopheryloxypropyl Trisiloxane, Trideceth-9 PG-Amodimethicone, Triethoxycaprylylsilane, Triethoxysilylethyl Dimethicone/Methicone Copolymer, Triethoxysilylethyl Polydimethylsiloxyethyl Dimethicone, Triethoxysilylethyl Polydimethylsiloxyethyl Hexyl Dimethicone, Triethoxysilylpropylcarbamoyl Ethoxypropyl Butyl Dimethicone, Trifluoromethyl C1-4 Alkyl Dimethicone, Trifluoropropyl Cyclopentasiloxane, Trifluoropropyl Cyclotetrasiloxane, Trifluoropropyl Dimethicone, Trifluoropropyl Dimethicone/PEG-10 Crosspolymer, Trifluoropropyl Dimethicone/Trifluoropropyl Divinyldimethicone Crosspolymer, Trifluoropropyl Dimethicone/Vinyl Trifluoropropyl, Dimethicone/Silsesquioxane Crosspolymer, Trifluoropropyl Dimethiconol, T rifluoropropyldimethyl/trimethylsiloxysilicate, T rifluoropropyl Methicone,
Trimethoxycaprylylsilane, Trimethoxysilyl Dimethicone, Trimethyl Pentaphenyl Trisiloxane, Trimethylsiloxyamodimethicone, Trimethylsiloxyphenyl Dimethicone, Trimethylsiloxysilicate, T rimethylsiloxysilicate/Dimethicone Crosspolymer, T rimethylsiloxysilicate/Dimethiconol
Crosspolymer, Trimethylsiloxysilylcarbamoyl Pullulan, Trimethylsilyl Hydrolyzed Conchiolin Protein PG-Propyl Methylsilanediol Crosspolymer, Trimethylsilyl Hydrolyzed Silk PG-Propyl Methylsilanediol Crosspolymer, Trimethylsilyl Hydrolyzed Wheat Protein PG-Propyl Methylsilanediol Crosspolymer, Trimethylsilyl Pullulan, Trimethylsilyl Trimethylsiloxy Glycolate, Trimethylsilyl Trimethylsiloxy Lactate, Trimethylsilyl Trimethylsiloxy Salicylate, Triphenyl Trimethicone, Trisiloxane, Tris-Tributoxysiloxymethylsilane, Undecylcrylene Dimethicone, Vinyl Dimethicone, Vinyl Dimethicone/Lauryl Dimethicone Crosspolymer, Vinyl Dimethicone/Methicone Silsesquioxane Crosspolymer, Vinyldimethyl/Trimethylsiloxysilicate Stearyl Dimethicone Crosspolymer, VP/Dimethiconylacrylate/Polycarbamyl/Polyglycol Ester, Zinc Carboxydecyl Trisiloxane, Zinc Dimethicone PEG-8 Succinate, and mixtures thereof. More preferably, the silicones to be contained in the sunscreen composition or cosmetic composition or cosmetic composition according to the invention are Dimethicone, Cyclomethicone, Cyclopentasiloxane, Cyclotetrasiloxane, Phenyl Trimethicone, and Cyclohexasiloxane. The total amount of silicone compound(s) in the compositions according to the presently claimed invention can vary but is typically 0.1 to 20 % by weight, based on the total weight of the composition.
[0142] Dry-feel modifiers: The sunscreen product or cosmetic or pharmaceutical preparation according to the presently claimed invention is preferably combined with dry-feel modifiers. A dryfeel modifier is an agent which, when incorporated in an emulsion, imparts a "dry feel" to the skin when the emulsion dries. Dry-feel modifiers may also reduce sunscreen migration on the skin. Dry feel modifiers can include starches, talc, kaolin, chalk, zinc oxide, silicone fluids, inorganic salts such as barium sulfate and sodium chloride, 06 to C12 alcohols such as octanol; sulfonated oils; surface treated silica, precipitated silica, fumed silica such as Aerosil® available from the Degussa Inc. of New York, N.Y. U.S.A, or mixtures thereof; dimethicone, a mixture of mixture of methylated linear siloxane polymers, available as DC200 fluid, tradename of Dow Corning, Midland, Mich. U.S.A. One or more dry-feel modifiers can optionally be included in the sunscreen in amounts ranging from 0.01 to 20 % by weight, more preferably from 0.1 to 10.0 % by weight.
[0143] Skin moisturizing and/or moisture-retaining substances: The sunscreen product or cosmetic or pharmaceutical preparation according to the presently claimed invention comprises advantageously one or more skin-moisturizing and/or moisture-retaining substances. Preferred skin moisturizing and/or moisture-retaining substances are selected from the group consisting of alkane diols or alkane triols comprising 3 to 12 carbon atoms, preferably Cs-Cw-alkane diols and Cs-C -alkane triols. More preferably the skin moisturizing agents are selected from the group consisting of glycerol, 1 ,2-propylene glycol, 1 ,2-butylene glycol, 1 ,3-butylene glycol, 1 ,2- pentanediol, 1 ,2-hexanediol, 1 ,2-octanediol and 1 ,2-decanediol. Further skin moisturizing and/or moisture-retaining substances include sodium lactate, urea, urea derivatives, alcohols, glycerol, diols such as propylene glycol, hexylene glycol, collagen, elastin or hyaluronic acid, diacyl adipates, petrolatum, urocanic acid, lecithin, panthenol, phytantriol, lycopene, (pseudo- )ceramides, glycosphingolipids, cholesterol, phytosterols, chitosan, chondroitin sulphate, lanolin, lanolin esters, amino acids, alpha-hydroxy acids (such as citric acid, lactic acid, malic acid) and their derivatives, mono-, di- and oligosaccharides such as glucose, galactose, fructose, mannose, fructose and lactose, polysugars such as R-glucans, in particular 1 ,3-1 ,4-p-glucan from oats, alpha-hydroxy fatty acids, triterpene acids such as betulinic acid or ursolic acid, and algae extracts. [0144] Lenitive substances: The sunscreen product or cosmetic or pharmaceutical preparation according to the presently claimed invention can also contain advantageously one or more lenitive substances, wherein any lenitive substances can be used which are suitable or customary in cosmetic or pharmaceutical applications such as alpha-bisabolol, azulene, guaiazulene, 18-beta-glycyrrhetinic acid, allantoin, Aloe vera juice or gel, extracts of Hamamelis virginiana (witch hazel), Echinacea species, Centella asiatica, chamomile, Arnica montana, Glycyrrhiza species, algae, seaweed and Calendula officinalis, and vegetable oils such as sweet almond oil, baobab oil, olive oil and panthenol, Laureth-9, Trideceth-9 and 4-t-butylcyclohexanol.
[0145] Physiological cooling agents: The sunscreen product or cosmetic or pharmaceutical preparation according to the presently claimed invention can be particularly advantageously combined with one or more physiological cooling agent(s). The use of cooling agents can alleviate itching. Preferred individual cooling agents for use within the framework of the presently claimed invention are listed below. The person skilled in the art can add many other cooling agents to this list; the cooling agents listed can also be used in combination with one another: which are preferably selected here from the following list: menthol and menthol derivatives (for example L- menthol, D-menthol, racemic menthol, isomenthol, neoisomenthol, neomenthol) menthylethers (for example (l-menthoxy)-1 ,2-propanediol, (l-menthoxy)-2-methyl-1 ,2-propanediol, l-menthyl- methylether), menthone glyceryl acetal, menthone glyceryl ketal or mixtures of both, menthylesters (for example menthylformiate, menthylacetate, menthylisobutyrate, menthyhydroxyisobutyrat, menthyllactates, L-menthyl-L-lactate, L-menthyl-D-lactate, menthyl-(2- methoxy)acetate, menthyl-(2-methoxyethoxy)acetate, menthylpyroglutamate), menthylcarbonates (for example menthylpropyleneglycolcarbonate, menthylethyleneglycolcarbonate, menthylglycerolcarbonate or mixtures thereof), the semi-esters of menthols with a dicarboxylic acid or derivatives thereof (for example mono-menthylsuccinate, mono-menthylglutarate, mono-menthylmalonate, O-menthyl succinic acid ester-N,N- (dimethyl)amide, O-menthyl succinic acid ester amide), menthanecarboxylic acid amides (in this case preferably menthanecarboxylic acid-N-ethylamide [WS3] or Na- (menthanecarbonyl)glycinethylester [WS5], menthanecarboxylic acid-N-(4-cyanophenyl)amide or menthanecarboxylic acid-N-(4-cyanomethylphenyl)amide, menthanecarboxylic acid-N- (alkoxyalkyl)amides), menthone and menthone derivatives (for example L-menthone glycerol ketal), 2,3-dimethyl-2-(2-propyl)-butyric acid derivatives (for example 2,3-dimethyl-2-(2-propyl)- butyric acid-N-methylamide [WS23]), isopulegol or its esters (l-(-)-isopulegol, l-(-)- isopulegolacetate), menthane derivatives (for example p-menthane-3,8-diol), cubebol or synthetic or natural mixtures, containing cubebol, pyrrolidone derivatives of cycloalkyldione derivatives (for example 3-methyl-2(1-pyrrolidinyl)-2-cyclopentene-1-one) or tetrahydropyrimidine-2-one (for example icilin or related compounds), further carboxamides (for example N-(2-(pyridin-2-yl)ethyl)- 3-p-menthanecarboxamide or related compounds), (1 R,2S,5R)-N-(4-Methoxyphenyl)-5-methyl- 2-(1-isopropyl)cyclohexane-carboxamide [WS12], oxamates and [(1 R,2S,5R)-2-isopropyl-5- methyl-cyclohexyl] 2-(ethylamino)-2-oxo-acetate (X Cool). Cooling agents which are preferred due to their particular synergistic effect are l-menthol, d-menthol, racemic menthol, menthone glycerol acetal (trade name: Frescolat® MGA), menthyl lactate (preferably l-menthyl lactate, in particular l-menthyl l-lactate (trade name: Frescolat® ML)), substituted menthyl-3-carboxamides (such as menthyl-3-carboxylic acid N-ethyl amide), 2-isopropyl-N-2,3-trimethyl butanamide, substituted cyclohexane carboxamides, 3-menthoxypropane-1 ,2-diol, 2-hydroxyethyl menthyl carbonate, 2-hydroxypropyl menthyl carbonate and isopulegol. Particularly preferred cooling agents are l-menthol, racemic menthol, menthone glycerol acetal (trade name: Frescolat® MGA), menthyl lactate (preferably l-menthyl lactate, in particular l-menthyl l-lactate (trade name: Frescolat® ML)), 3-menthoxypropane-1 ,2-diol, 2-hydroxyethyl menthyl carbonate and 2- hydroxypropyl menthyl carbonate. Very particularly preferred cooling agents are l-menthol, menthone glycerol acetal (trade name: Frescolat® MGA) and menthyl lactate (preferably l-menthyl lactate, in particular l-menthyl l-lactate (trade name: Frescolat® ML).
[0146] Antioxidants: The sunscreen composition or cosmetic composition or cosmetic composition according to the presently claimed invention comprises advantageously one or more antioxidants. Suitable antioxidants encompass amino acids (preferably glycine, histidine, tyrosine, tryptophan) and derivatives thereof, imidazoles (preferably urocanic acid) and derivatives thereof, peptides, preferably D,L-carnosine, D-carnosine, L-carnosine and derivatives thereof (preferably anserine), carnitine, creatine, matrikine peptides (preferably lysyl-threonyl-threonyl-lysyl-serine) and palmitoylated pentapeptides, carotenoids, carotenes (preferably alpha-carotene, betacarotene, lycopene) and derivatives thereof, lipoic acid and derivatives thereof (preferably dihydrolipoic acid), aurothioglucose, propyl thiouracil and other thiols (preferably thioredoxine, glutathione, cysteine, cystine, cystamine and glycosyl, N-acetyl, methyl, ethyl, propyl, amyl, butyl and lauryl, palmitoyl, oleyl, gamma-linoleyl, cholesteryl, glyceryl and oligoglyceryl esters thereof) and salts thereof, dilauryl thiodipropionate, distearyl thiodipropionate, thiodipropionic acid and derivatives thereof (preferably esters, ethers, peptides, lipids, nucleotides, nucleosides and salts) and sulfoximine compounds (preferably buthionine sulfoximines, homocysteine sulfoximine, buthionine sulfones, penta-, hexa-, heptathionine sulfoximine) in very small tolerated doses (e.g. pmol to pmol/kg), also (metal) chelators (preferably alpha-hydroxy fatty acids, palmitic acid, phytic acid, lactoferrin, alpha-hydroxy acids (preferably citric acid, lactic acid, malic acid), humic acid, bile acid, bile extracts, tannins, bilirubin, biliverdin, EDTA, EGTA and derivatives thereof), unsaturated fatty acids and derivatives thereof (preferably gamma-linolenic acid, linoleic acid, oleic acid), folic acid and derivatives thereof, ubiquinone and derivatives thereof, ubiquinol and derivatives thereof, vitamin C and derivatives (preferably ascorbyl palmitate, Mg ascorbyl phosphate, ascorbyl acetate, ascorbyl glucoside), tocopherols and derivatives (preferably vitamin E acetate), vitamin A and derivatives (vitamin A palmitate) and coniferyl benzoate of benzoic resin, rutinic acid and derivatives thereof, flavonoids and glycosylated precursors thereof, in particular quercetin and derivatives thereof, preferably alpha-glucosyl rutin, rosmarinic acid, carnosol, carnosolic acid, resveratrol, caffeic acid and derivatives thereof, sinapic acid and derivatives thereof, ferulic acid and derivatives thereof, curcuminoids, chlorogenic acid and derivatives thereof, retinoids, preferably retinyl palmitate, retinol or tretinoin, ursolic acid, levulinic acid, butyl hydroxytoluene, butyl hydroxyanisole, nordihydroguaiac acid, nordihydroguaiaretic acid, trihydroxybutyrophenone, uric acid and derivatives thereof, mannose and derivatives thereof, zinc and derivatives thereof (preferably ZnO, ZnSO4), selenium and derivatives thereof (preferably selenium methionine), superoxide dismutase, stilbenes and derivatives thereof (preferably stilbene oxide, trans-stilbene oxide) and the derivatives (salts, esters, ethers, sugars, nucleotides, nucleosides, peptides and lipids) of these cited active ingredients which are suitable according to the invention or extracts or fractions of plants having an antioxidant effect, preferably green tea, rooibos, honeybush, grape, rosemary, sage, melissa, thyme, lavender, olive, oats, cocoa, ginkgo, ginseng, liquorice, honeysuckle, sophora, pueraria, pinus, citrus, Phyllanthus emblica or St. John's wort, grape seeds, wheat germ, Phyllanthus emblica, coenzymes, preferably coenzyme Q10, plastoquinone, menaquinone and caprylyloxyphenylamino dimethyltetrahydro benzothiazine carboxylic acid. Preferred antioxidants are selected from the group consisting of vitamin A and derivatives, vitamin C and derivatives, tocopherol and derivatives, preferably tocopheryl acetate, and ubiquinone.
[0147] Emulsifiers: In addition, the sunscreen composition or cosmetic composition or cosmetic composition according to the presently claimed invention can also advantageously contain one or more emulsifiers in order to keep the sunscreen composition or cosmetic composition or cosmetic composition stable. Emulsifiers include amphoteric, anionic, cationic or nonionic emulsifiers, used alone or as a mixture. The emulsifiers are chosen in an appropriate manner according to the emulsion to be obtained. Preferred examples include: products of the addition of 2 to 30 mol ethylene oxide and/or 0 to 5 mol propylene oxide onto linear Cs-22 fatty alcohols, onto C12-22 fatty acids and onto alkyl phenols containing 8 to 15 carbon atoms in the alkyl group;
C12/18 fatty acid monoesters and diesters of addition products of 1 to 30 mol ethylene oxide onto glycerol; glycerol mono- and diesters and sorbitan mono- and diesters of saturated and unsaturated fatty acids containing 6 to 22 carbon atoms and ethylene oxide addition products thereof; addition products of 15 to 60 mol ethylene oxide onto castor oil and/or hydrogenated castor oil; polyol esters and, in particular, polyglycerol esters such as, for example, polyglycerol polyricinoleate, polyglycerol poly-12-hydroxystearate or polyglycerol dimerate isostearate. Mixtures of compounds from several of these classes are also suitable; addition products of 2 to 15 mol ethylene oxide onto castor oil and/or hydrogenated castor oil; partial esters based on linear, branched, unsaturated or saturated C6/22 fatty acids, ricinoleic acid and 12- hydroxy stearic acid and glycerol, polyglycerol, pentaerythritol, - dipentaerythritol, sugar alcohols (for example sorbitol), alkyl glucosides (for example methyl glucoside, butyl glucoside, lauryl glucoside) and polyglucosides (for example cellulose); mono-, di and trialkyl phosphates and mono-, di- and/or tri-PEG-alkyl phosphates and salts thereof; wool wax alcohols; polysiloxane/polyalkyl polyether copolymers and corresponding derivatives; mixed esters of pentaerythritol, fatty acids, citric acid and fatty alcohol and/or mixed esters of C6-22 fatty acids, methyl glucose and polyols, preferably glycerol or polyglycerol, polyalkylene glycols, glycerol carbonate, glyceryl oleate citrate, caprylic/capric triglyceride, hydrogenated palm glycerides.
[0148] The addition products of ethylene oxide and/or propylene oxide onto fatty alcohols, fatty acids, alkylphenols, glycerol mono- and diesters and sorbitan mono- and diesters of fatty acids or onto castor oil are known commercially available products. They are homologue mixtures of which the average degree of alkoxylation corresponds to the ratio between the quantities of ethylene oxide and/or propylene oxide and substrate with which the addition reaction is carried out. C12/18 fatty acid monoesters and diesters of addition products of ethylene oxide onto glycerol are known as lipid layer enhancers for cosmetic formulations.
[0149] The preferred emulsifiers are described in more detail as follows:
[0150] Partial glycerides: Typical examples of suitable partial glycerides are hydroxystearic acid monoglyceride, hydroxy stearic acid diglyceride, isostearic acid monoglyceride, isostearic acid diglyceride, oleic acid monoglyceride, oleic acid diglyceride, ricinoleic acid monoglyceride, ricinoleic acid diglyceride, linoleic acid monoglyceride, linoleic acid diglyceride, linolenic acid monoglyceride, linolenic acid diglyceride, erucic acid monoglyceride, erucic acid diglyceride, tartaric acid monoglyceride, tartaric acid diglyceride, citric acid monoglyceride, citric acid diglyceride, malic acid monoglyceride, malic acid diglyceride and technical mixtures thereof which may still contain small quantities of triglyceride from the production process. Addition products of 1 to 30 and preferably 5 to 10 mol ethylene oxide onto the partial glycerides mentioned are also suitable.
[0151] Sorbitan esters: Suitable sorbitan esters are sorbitan monoisostearate, sorbitan sesqui- isostearate, sorbitan diisostearate, sorbitan tri isostea rate, sorbitan monooleate, sorbitan sesquioleate, sorbitan dioleate, sorbitan trioleate, sorbitan monoerucate, sorbitan sesquierucate, sorbitan dierucate, sorbitan trierucate, sorbitan monoricinoleate, sorbitan sesquiricinoleate, sorbitan diricinoleate, sorbitan triricinoleate, sorbitan monohydroxystearate, sorbitan sesqui- hydroxy stea rate, sorbitan dihydroxystearate, sorbitan trihydroxystearate, sorbitan monotartrate, sorbitan sesquitartrate, sorbitan ditartrate, sorbitan tritartrate, sorbitan monocitrate, sorbitan sesquicitrate, sorbitan dicitrate, sorbitan tricitrate, sorbitan monomaleate, sorbitan sesquimaleate, sorbitan dimaleate, sorbitan trimaleate and technical mixtures thereof. Addition products of 1 to 30 and preferably 5 to 10 mol ethylene oxide onto the sorbitan esters mentioned are also suitable.
[0152] Polyglycerol esters: Typical examples of suitable polyglycerol esters are Polyglyceryl-2 Dipolyhydroxystearate (Dehymuls® PGPH), Polyglycerin-3-Diisostearate (Lameform® TGI), Polyglyceryl-4 Isostearate (Isolan® Gl 34), Polyglyceryl-3 Oleate, Diisostearoyl Polyglyceryl-3 Diisostearate (Isolan® PDI), Polyglyceryl-3 Methylglucose Distearate (Tego Care® 450), Polyglyceryl-3 Beeswax (Cera Beilina®), Polyglyceryl-4 Caprate (Polyglycerol Caprate T2010/90), Polyglyceryl-3 Cetyl Ether (Chimexane® NL), Polyglyceryl-3 Distearate (Cremophor® GS 32) and Polyglyceryl Polyricinoleate (Admul® WOL 1403), Polyglyceryl Dimerate Isostearate and mixtures thereof. Examples of other suitable polyolesters are the mono-, di- and triesters of trimethylol propane or pentaerythritol with lauric acid, cocofatty acid, tallow fatty acid, palmitic acid, stearic acid, oleic acid, behenic acid and the like optionally reacted with 1 to 30 mol ethylene oxide. [0153] Anionic emulsifiers: Typical anionic emulsifiers are aliphatic C12 to C 22 fatty acids, such as palmitic acid, stearic acid or behenic acid for example, and C12 to C22 dicarboxylic acids, such as azelaic acid or sebacic acid for example.
[0154] Amphoteric emulsifiers: Other suitable emulsifiers are amphoteric or zwitterionic surfactants. Zwitterionic surfactants are surface-active compounds which contain at least one quaternary ammonium group and at least one carboxylate and one sulfonate group in the molecule. Particularly suitable zwitterionic surfactants are the so-called betaines, such as the N- alkyl-N,N-dimethyl ammonium glycinates, for example cocoalkyl dimethyl ammonium glycinate, N-acylaminopropyl-N,N-dimethyl ammonium glycinates, for example cocoacylaminopropyl dimethyl ammonium glycinate, and 2-alkyl-3-carboxymethyl-3-hydroxyethyl imidazolines containing 8 to 18 carbon atoms in the alkyl or acyl group and cocoacylaminoethyl hydroxyethyl carboxymethyl glycinate. The fatty acid amide derivative known under the CTFA name of Coc- amidopropyl Betaine is particularly preferred. Ampholytic surfactants are also suitable emulsifiers. Ampholytic surfactants are surface-active compounds which, in addition to a Cs/is alkyl or acyl group, contain at least one free amino group and at least one -COOH- or -SO3H- group in the molecule and which are capable of forming inner salts. Examples of suitable ampholytic surfactants are N-alkyl glycines, N-alkyl propionic acids, N-alkylaminobutyric acids, N- alkyliminodipropionic acids, N-hydroxyethyl-N-alkylamidopropyl glycines, N-alkyl taurines, N-alkyl sarcosines, 2-alkylaminopropionic acids and alkylaminoacetic acids containing around 8 to 18 carbon atoms in the alkyl group. Particularly preferred ampholytic surfactants are N-coco- alkylaminopropionate, cocoacylaminoethyl aminopropionate and C12/18 acyl sarcosine.
[0155] Suitable emulsifiers are, for example, Cetyl Dimethicone Copolyol (e.g. Abil EM-90), Polyglyceryl-2 Dipolyhydroxystearate (e.g. Dehymuls PGPH), Polyglyceryl-3 Diisostearate (e.g. Lameform TGI), Polyglyceryl-4 Isostearate (e.g. Isolan Gl 34), Polyglyceryl-3 Oleate (e.g. Isolan GO 33), Diisostearoyl Polyglyceryl-3 Diisostearate (e.g. Isolan PDI), Polyglyceryl-3 Methylglucose Distearate (e.g. Tego Care 450), Polyglyceryl-3 Beeswax (e.g. Cera Beilina), Polyglyceryl-4 Caprate (e.g. Polyglycerol Caprate T2010/90), Polyglyceryl-3 Cetyl Ether (e.g. Chimexane NL), Polyglyceryl-3 Distearate (e.g. Cremophor GS 32) and Polyglyceryl Polyricinoleate (e.g. Admul WOL 1403), Glyceryl Oleate (e.g. Monomuls 90-0 18), Alkyl Glucoside (e.g. Plantacare 1200, Emulgade PL 68/50, Montanov 68, Tego Care CG 90, Tego Glucosid L 55), Methyl Glucose Isostearate (e.g. Tego Care IS), Methyl Glucose Sesquistearate (Tego Care PS), Sodium Cocoyl Hydrolyzed Wheat Protein (e.g. Gluadin WK), Potassium Cetyl Phosphate (e.g. Amphisol K, Crodafos CKP, Emulsiphos F), Sodium Alkylsulfate (e.g. Lanette E), Sucrose Ester (e.g. Crodesta F-10, F-20, F-50, F-70, F-110, F-160, SL-40, Emulgade® Sucro), ethoxylated and/or propoxylated fatty alcohols, fatty acids, castor oils and hydrogenated castor oils (e.g. Eumulgin B2, B2, B3, L, HRE 40, HRE 60, RO 40, Cremophor HRE 40, HRE 60, L, WO 7, Dehymuls HRE 7, Arlacel 989), PEG-30 Dipolyhydroxystearate (e.g. Arlacel P 135, Dehymuls LE), sorbitan esters, sorbitan esters ethoxylated and/or propoxylated, and mixtures thereof. A particularly effective mixture consists of Polyglyceryl-2 Dipolyhydroxystearate and Lauryl Glucoside and glycerol (e.g. Eumulgin VL 75). Also suitable are Polyglyceryl-4 Diisostearate/Polyhydroxystearate/Sebacate (Isolan® GPS), Diisostearoyl Polyglyceryl-3 Diisostearate (e.g. Isolan PDI), alkali metal salts of acylglutamates (e.g. Eumulgin SG).
[0156] In a preferred embodiment, the at least one emollient is selected from mixtures of C16- 18 mono-, di-, and triglycerides, more preferably from Glyceryl Oleate Citrate, Caprylic/Capric Triglyceride (such as Dracorin® GOC), and Glyceryl Stearate Citrate (such as Dracorin® CE). Further preferred C16-18 mono-, di-, and triglycerides include Glyceryl Stearate, Glyceryl Palmitate, Glyceryl Oleate, Glyceryl Linoleate, Glyceryl Dioleate, Glyceryl Dipalmitate, Glyceryl Distearate, and Glyceryl Trioleate.
[0157] Antimicrobial agents: The sunscreen composition or cosmetic composition or cosmetic composition according to the presently claimed invention can advantageously combined with an anti-microbial agent which act primarily against microorganisms, in particular bacteria, yeast and/or fungi and includes one or more anti-microbial agents such as 1 ,2-decanediol (decylene glycol), 1 ,2-heptanediol, 1 ,2-hexanediol, 1 ,2-nonanediol, 1 ,2-octanediol, 1 ,2-pentanediol, 1 ,2- propanediol, 1 ,3-propanediol, 2,3-decanediol, 2,3-heptanediol, 2,3-hexanediol, 2,3-nonanediol, 2,3-octanediol, 2,3-pentanediol, 2-benzylheptanol, 2-hydroxyacetophenone, 2-methyl 5- cyclohexylpentanol, 3-hydroxypropyldecanoate, 3-hydroxypropyldodecanoate, 3-hydroxypropyl 2-hydroxybenzoate, 4-hydroxyacetophenone, alkyl (C 12-22) trimethyl ammonium bromide and chloride, anisic acid and salts thereof, anisic acid 3-hydroxypropylester, ascorbic acid and salts thereof, ascorbyl palmitate, azelaic acid, azeloyl diglycinate, benzalkonium bromide, benzalkonium chloride, benzalkonium saccharinate, benzethonium chloride, benzoic acid, benzoic acid 3-hydroxypropylester, benzyl alcohol, benzyl salicylate, benzysothiazolinone, bisabolol, bronopol (2-bromo-2-nitropropane-1 ,3-diol), butylene glycol, butylparaben, camphor, caprylhydroxamic acid, capryloyl glycine, capryloyl/caproyl anhydro methyl glucamide, caprylyl glyceryl ether, caprylyl/capric triglyceride, cetylpyridinium chloride, chlorhexidine, chlorhexidine diacetate, chlorhexidine digluconate, chlorhexidine dihydrochloride, chlorocresol, chloroxylenol, chlorphenesin, citronellyl methylcrotonate, climbazole, cyclohexylglycerin, dehydroacetic acid, diazolidinyl urea, dimethyl phenylbutanol, dimethyl phenylpropanol, dipropylene glycol, disodium EDTA, DM DM hydantoin, ethanol, ethyl lauroyl arginate HCI, ethyl lauroyl arginate laurate, ethylhexylglycerin, ethylparaben, eucalyptol, farnesol, garcinia mangostana peel extract, gluconic acid and salts thereof, glycerine, glyceryl caprate, glyceryl caprylate, glyceryl heptanoate, glyceryl laurate, glyceryl undecylenate, glycolipids, heptylglycerin, hexamidine, hexamidine diisethionate, hexylene glycol, hexylglycerin, hydroxyethoxyphenyl butanol, hydroxyethoxyphenyl butanone, imidazolidinyl urea, iodopropynyl butylcarbamate, isoamyl laurate, isobutylparaben, isopropylparaben, itaconic acid and salts thereof, jasmol, lactic acid, lauryl alcohol, levulinic acid, mandelic acid, mannitol, menthol, methyl salicylate, methyl undecylenate, methylbenzyl alcohol, methylchloroisothiazolinone, methylheptylglycerin, methylisothiazolinone, methylparaben and salts thereof, methylpropanediol, morinda citrifolia callus culture lysate, octenidine HCI, octylisothiazolinone, o-cymen-5-ol , panthenol, PCA ethyl cocoyl arginate, phenethyl alcohol, phenoxyethanol, phenylpropanol, piroctone olamine, polyarginine, polyglyceryl- 10 laurate, polyglyceryl-2 caprate, polyglyceryl-3 caprylate, polyglyceryl-4 caprylate/caprate, polyglyceryl-4 laurate/sebacate, polylysine, potassium sorbate, propanediol caprate, propanediol caprylate, propanediol laurate, propanediol undecylenate, propylene glycol, propylene glycol caprylate, propylparaben, raspberry ketone, saccharide isomerate, salicylic acid, salvia officinalis (sage) oil, silver chloride, silver citrate, sodium anisate, sodium benzoate, sodium caproyl lactylate, sodium caproyl/lauroyl lactylate, sodium ethylparaben, sodium lactate, sodium lauroyl lactylate, sodium levulinate, levulinic acid, sodium methylparaben, sodium phytate, phytic acid, sodium propylparaben, sorbic acid, sorbitan caprylate, sorbitol, TEA-salicylate, tetraselmis extract, tetrasodium glutamate diacetate, thymol, triclocarban, triclosan, triethyl citrate, trisodium dicarboxymethyl alaninate, trisodium ethylenediamine disuccinate, tropolone, undecylenic acid, undecylenoyl glycine, xylityl caprylate, xylityl sesquicaprylate, zinc citrate, zinc lactate, zinc neodecanoate, zinc pyrithione, zinc ricinoleate, and capryloyl/caproyl anhydro methyl glucamide and mixtures thereof.
[0158] In order to further enhance antimicrobial efficacy, the sunscreen composition or cosmetic composition or cosmetic composition as defined herein, is advantageously combined with at least one further antimicrobial agent which is different from the anti-microbial agents specified above. The combination with a further antimicrobial agent provides reliable protection against microbial degradation and deterioration of the preparation, in particular during storage. Additionally, the further different antimicrobial agent provides reliable protection against other microorganisms as described above, for example Corynebacterium, Anaerococcus, Finegoldia, Moraxella, Porphyromonas, Fusobacterium, Malassezia, Peptoniphilus, Streptococcus, Lactobacillus, Gardnerella, Fannyhessea, Epidermophyton, Trichophyton, Cutibacterium. Hence, the combination with a further different antimicrobial agent allows antimicrobial protection against different groups of microorganisms, and, thus, a broader spectrum of microorganism. The further different antimicrobial agent in the context of the presently claimed invention is preferably selected from the group consisting of 2-benzylheptanol, alkyl (C 12-22) trimethyl ammonium bromide and chloride, ascorbic acid and salts thereof, benzalkonium bromide, benzalkonium chloride, benzalkonium saccharinate, benzethonium chloride, Benzoic Acid, camphor, cetylpyridinium chloride, chlorhexidine diacetate, chlorhexidine dihydrochloride, chlorocresol, chloroxylenol, Cyclohexylglycerin, Dimethyl phenylbutanol, Dimethyl phenylpropanol, ethanol, ethyl lauroyl arginate HCI, Ethyl Lauroyl Arginate Laurate, eucalyptol, gluconic acid and salts thereof, glycerin, hexamidine, hexamidine diisethionate, Hexylglycerin, lodopropynyl Butylcarbamate, jasmol, lauryl alcohol, Levulinic Acid and esters and/or ketals thereof, mannitol, menthol, methyl salicylate, Octenidine HCI, polyarginine, Polyglyceryl-10 Laurate, polyglyceryl-2 caprate, Polyglyceryl-3 caprylate, polylysine, Salvia Officinalis (Sage) Oil, silver chloride, silver citrate, sodium caproyl lactylate, Sodium Caproyl/Lauroyl Lactylate, sodium lauroyl lactylate, Sorbic Acid, sorbitol, Tetraselmis extract, triclocarban, triclosan, Triethyl citrate, Xylityl Sesquicaprylate, zinc citrate, zinc pyrithione, Zinc ricinoleate, and any mixture thereof.
[0159] The aforesaid antimicrobial agents are used in the sunscreen composition or cosmetic composition or cosmetic composition either as a single component or preferably in a mixture with two or more further of said antimicrobial agents as specified above. The antimicrobial agent is present in the sunscreen composition or cosmetic composition or cosmetic composition in an amount of 0.01 to 25.0 % by weight, preferably 0.02 to 15.0 % by weight, most preferred in an amount of 0.05 to 6.0 % by weight, based on the total weight of the final formulation. [0160] Preservatives: For preservative purposes, the sunscreen composition or cosmetic composition or cosmetic composition according to the presently claimed invention preferably includes one or more preservatives which are suitable or customary in sunscreen compositions or cosmetic compositions. Suitable and advantageously preservatives are, for example, benzoic acid, sodium benzoate, ammonium benzoate, butyl benzoate, hydroxypropyl benzoate, calcium benzoate, ethyl benzoate, isobutyl benzoate, isopropyl benzoate, magnesium benzoate, mea- benzoate, methyl benzoate, phenyl benzoate, potassium benzoate, propyl benzoate, propionic acid, ammonium propionate, calcium propionate, magnesium propionate, potassium propionate, sodium propionate, salicylic acid, calcium salicylate, magnesium salicylate, measalicylate, sodium salicylate, potassium salicylate, teasalicylate, sorbic acid, calcium sorbate, sodium sorbate, potassium sorbate, o-phenylphenol, sodium sulfite, ammonium bisulfite, ammonium sulfite, potassium sulfite, potassium hydrogen sulfite, sodium bisulfite, sodium metabisulfite, potassium metabisulfite, chlorobutanol, 4-hydroxybenzoic acid, methylparaben, potassium ethylparaben, potassium paraben, sodium methylparaben, sodium ethylparaben, ethylparaben, sodium paraben, potassium methylparaben, calcium paraben, butylparaben, propylparaben, sodium propoylparaben, sodium butylparaben, potassium butylparaben, potassium propylparaben, dehydroacetic acid, sodium dehydroacetate, formic acid, sodium formate, dibromohexamidine isethionate, thimerosal, phenyl mercuric acetate, phenyl mercuric benzoate, undecylenic acid, potassium undecylenate, sodium undecylenate, calcium undecylenate, mea- undecylenate, tea-undecylenate, hexetidine, 5-bromo-5-nitro-1,3-dioxane, 2-bromo-2- nitropropane-1 ,3-diol, dichlorobenzyl alcohol, triclocarban, p-chloro-m-cresol, triclosan, chloroxylenol, imidazolidinyl urea, polyaminopropyl; biguanide, phenoxyethanol, methenamine, climbazole, DM DM hydantoin, benzyl alcohol, 1-hydroxy-4-methyl-6-(2,4,4-trimethylpentyl)-2 pyridon, piroctone olamine, bromochlorophene, o-cymen-5-ol, methylchloroisothiazolinone and methylisothiazolinone, chlorhexidine, chlorhexidine diacetate, chlorhexidine digluconate, chlorhexidine dihydrochloride, phenoxyisopropanol, behentrimonium chloride(1), cetrimonium bromide, cetrimonium chloride(2), laurtrimoniumbromide, laurtrimonium chloride, steartrimonium bromide, steartrimonium chloride (2), dimethyl oxazolidine, diazolidinyl urea, hexamidine, hexamidine diisethionate, hexamidine diparaben, hexamidine paraben, glutaral, 7- ethylbicyclooxazolidine, chlorphenesin, sodium hydroxymethylglycinate, silver chloride, benzethonium chloride, benzalkonium chloride, benzalkonium bromide, benzalkonium saccharinate, benzylhemiformal, iodopropynyl butylcarbamate, methylisothiazolinone, citric acid, silver citrate, hydroxyethoxy-phenyl butanone (HEPB) and any mixture thereof.
[0161] Drugs: The sunscreen composition or cosmetic composition or cosmetic composition according to the presently claimed invention is preferably combined with one or more drugs. In certain such embodiments, the pharmaceutically active agent is selected from anti-acne agents, agents used to treat rosacea, analgesics, anesthetics, anorectals, antihistamines, antiinflammatory agents including non-steroidal anti-inflammatory drugs, antibiotics, antifungals, antivirals, antimicrobials, anti-cancer actives, scabicides, pediculicides, antineoplastics, antiperspirants, antipruritics, antipsoriatic agents, antiseborrheic agents, biologically active proteins and peptides, burn treatment agents, cauterizing agents, depigmenting agents, depilatories, diaper rash treatment agents, enzymes, hair growth stimulants, hair growth retardants including eflornithine and its salts and analogs, hemostatics, kerotolytics, canker sore treatment agents, cold sore treatment agents, dental and periodontal treatment agents, photosensitizing actives, skin protectant/barrier agents, steroids including hormones and corticosteroids, sunburn treatment agents, sunscreens, transdermal actives, nasal actives, vaginal actives, wart treatment agents, wound treatment agents, wound healing agents, etc.
[0162] Especially useful are natural or naturally occurring anti-inflammatory mixtures of substances, in particular extracts or fractions from chamomile, Aloe vera, Commiphora species, Rubia species, willow, willow-herb, oats, calendula, arnica, St John’s wort, honeysuckle, rosemary, Passiflora incarnata, witch hazel, ginger or Echinacea; preferably selected from the group consisting of extracts or fractions from chamomile, Aloe vera, oats, calendula, arnica, honeysuckle, rosemary, witch hazel, ginger or Echinacea, and/or pure substances, preferably alpha-bisabolol, apigenin, apigenin-7-glucoside, gingerols, shogaols, gingerdiols, dehydrogingerdiones, paradols, natural or naturally occurring avenanthramides, preferably tranilast, avenanthramide A, avenanthramide B, avenanthramide C, non-natural or non-naturally occurring avenanthramides, preferably dihydroavenanthramide D, dihydroavenanthramide E, avenanthramide D, avenanthramide E, avenanthramide F, boswellic acid, phytosterols, glycyrrhizin, glabridin and licochalcone A; preferably selected from the group consisting of alpha- bisabolol, natural avenanthramides, non-natural avenanthramides, preferably dihydroavenanthramide D (as described in WO 2004 047833 A1), boswellic acid, phytosterols, glycyrrhizin, and licochalcone A, and/or allantoin, panthenol, lanolin, (pseudo-)ceramides [preferably Ceramide 2, hydroxypropyl bispalmitamide MEA, cetyloxypropyl glyceryl methoxypropyl myristamide, N-(1-hexadecanoyl)-4-hydroxy-L-proline (1-hexadecyl) ester, hydroxyethyl palmityl oxyhydroxypropyl palmitamide], glycosphingolipids, phytosterols, chitosan, mannose, lactose and B-glucans, in particular 1 ,3->1 ,4-B-glucan from oats.
[0163] In addition to the above-described substances, further ingredients commonly used in sunscreen compositions or cosmetic compositions, which are suitable or customary in the compositions of the presently claimed invention, can be used.
[0164] The sunscreen composition or cosmetic composition or cosmetic composition according to the presently claimed invention is intended for topical applications. The term “topical” is understood to mean external applications on a mammal’s skin or mucosa, which are in particular for the protection, treatment, care and cleansing of the skin, scalp, eyelashes, eyebrows, nails, mucous membranes and hair. The mammal is preferably a human.
[0165] For topical application, the cosmetic is either a rinse off or a leave on preparation.
[0166] The sunscreen products according to the presently claimed invention may be in the form of an aqueous solution, dispersions, a hydro alcoholic vehicle, a stick, an ointment, a gel, an aerosol (foams, sprays, propellant pump) and the like.
[0167] The sunscreen composition or cosmetic composition or cosmetic composition according to the presently claimed invention can be present in different forms, e.g. in the form of a dispersion, in the form of a water free formulation, or in the form of an aqueous, aqueous/alcoholic, in particular aqueous/ethanolic, aqueous/glycolic or alcoholic/glycolic, in particular ethanolic/glycolic, based solution.
[0168] In a preferred embodiment, the sunscreen composition or cosmetic composition or cosmetic composition according to the invention is a dispersion. The term “dispersion” in the context of the presently claimed invention means, that the sunscreen composition or cosmetic composition or cosmetic composition is a disperse two-phase system consisting of colloidal particles (disperse phase) and a medium in which they are suspended (disperse medium). Both phases are not miscible with each other, only with an emulsifier. Such dispersions, for example emulsions, comprise the at least one oil component (without UV filters) preferably in an amount of > 1 % by weight, more preferably in an amount of > 3 % by weight.
[0169] Preferably, the sunscreen composition or cosmetic composition or cosmetic composition according to the presently claimed invention takes various forms such as an emulsion, in particular a O/W emulsion, a W/O emulsion, a multiple emulsion, a hydrodispersion gel, a balm, a multiple emulsion of the water-in-oil type (W/O/WO) or of the oil-in-water type (O/W/O), PIT emulsion, Pickering emulsion, a micro-emulsion, a liquid, a lotion, a suspension, a milk, an ointment, a paste, a gel, a cream based, an oil based or a liposome-based formulation or a an aerosol such as foams and sprays, including all types of silicon based emulsions.
[0170] In a most preferred embodiment, the sunscreen composition or cosmetic composition or cosmetic composition according to the presently claimed invention is in the form of an emulsion as defined herein, advantageously in the form of an oil-in-water (O/W) emulsion comprising an oily phase dispersed in an aqueous phase in the presence of an O/W or polymeric emulsifier.
[0171] If the sunscreen composition or cosmetic composition or cosmetic composition according to the presently claimed invention is a dispersion, preferably an emulsion, the oil component (without UV filters) is present in the cosmetic or pharmaceutical preparation in an amount of 0.01 to 50.0 % by weight, based on the total weight of the composition. In a preferred embodiment, the cosmetic or pharmaceutical preparation comprises the oil component in an amount of 0.1 to 45.0 % by weight, based on the total weight of the composition. In a particular preferred embodiment, the oil component is advantageously used in the cosmetic or pharmaceutical preparation in an amount of at 1.0 to 40 % by weight, based on the total weight of the composition.
[0172] In a further embodiment, the sunscreen product or cosmetic product according to the presently claimed invention is a water free formulation, i.e. an oil formulation.
[0173] If the sunscreen composition or cosmetic composition or cosmetic composition according to the presently claimed invention is a water free formulation, i.e. an oil formulation, the oil component is present in the cosmetic or pharmaceutical preparation in an amount of > 60 % by weight, preferably in an amount of > 75 % by weight, more preferably in an amount of > 90 % by weight, based on the total weight of the composition. [0174] Such water free formulations include e.g. oils, skin butters, powders, lip stick, antiperspirant/deo sticks, and decorative cosmetics.
[0175] In addition, further water free formulations are likewise formulations on the basis of ethanol/diols/triols/glycols such as sprays or gels.
[0176] Alternatively, the sunscreen composition or cosmetic composition or cosmetic composition as disclosed herein is an aqueous or an aqueous/alcoholic, preferably aqueous/ethanolic, or an aqueous/glycolic, or an alcoholic/glycolic, preferably ethanolic/glycolic, based solution. Typically, this could be glycerin in water or alcohol compositions. Said solutions are homogeneous one phase system of water/alcohol/glycol and additional components. The aqueous/alcoholic or aqueous/glycolic or alcoholic/glycolic based solution comprises an aliphatic alcohol or a glycol in an amount of 0.1 to 70.0 % by weight, preferably in an amount of 0.5 to 60.0 % by weight, more preferably in an amount of 1.0 to 50.0 % by weight, based on the total weight of the solution. The aliphatic alcohol is preferably selected from the group consisting of ethanol, isopropanol, n-propanol. The glycol is preferably selected from the group consisting of glycerin, propylene glycol, 1 ,3-Propanediol, 1 ,2-Propanediol, 1 ,2-C5 to C10-alkanediols, butylene glycol or dipropylene glycol.
[0177] Preferably, the overall water content in the final aqueous based solutions can be > 30 % by weight, more preferably > 40 % by weight, most preferably > 50 % by weight.
[0178] Such aqueous or aqueous/alcoholic or aqueous/glycolic or alcoholic/glycolic based solutions include for example deo/antiperspirant preparations, after shave, cleansing preparations, or anti-acne preparations.
[0179] In a preferred embodiment, the inventive composition is an impregnation solution in the form of an emulsion spray or ethanol/oil spray for wet wipes.
[0180] The above formulations or compositions are prepared according to usual and known methods.
[0181] The products and preparations according to the presently claimed invention are for cosmetic and/or non-therapeutic use for personal care, skin protection, skin care, sun care, scalp protection, scalp care, hair care, nail care, in particular for the prevention and treatment of skin conditions, intolerant or sensitive skin, skin irritation, skin reddening, wheals, pruritis (itching), skin aging, wrinkle formation, loss of skin volume, loss of skin elasticity, piment spots, pigment abnormalities, skin dryness, flaking, greasiness, hypopigmentation and/or hyperpigmentation of the skin; or a preparation for animal care.
[0182] Examples of cosmetic compositions are preferably anti-ageing preparations, skin care emulsions, body oils, body lotions, cleansing lotions, face or body balms, after shave balms, after sun balms, deo emulsions, cationic emulsions, body gels, treatment creams, skin protection ointments, moisturizing gels, face and/or body moisturizers, light protective preparations (sunscreens), micellar water, hair sprays, color protection hair care products, skin lightning products, anti-dark-spot reparation, etc.
[0183] The cosmetic compositions include also make-ups, eye-care preparation, eye shadows, mascara, eyeliner, lip care preparation such as lip stick, lip gloss, mail care preparations, such as nail varnish, nail varnish removers.
[0184] Further examples of cosmetic compositions include BB creams (Blemish Balm creams or Beauty Balm creams), CC creams (Color Correcting creams), tinted moisturizers, primers, setting sprays, foundation powders, highlighters, bronzers, lip balms, after-sun gels, cooling sprays, scalp protection sprays, scalp serums, hair oils, leave-in hair treatments, body mists, and cleansing oils.
[0185] In order to be used, the sunscreen composition or cosmetic composition or cosmetic composition according to the presently claimed invention is applied to the skin, hair, scalp and/or nails in an adequate amount in such manner as is customary with sunscreen compositions or cosmetic compositions.
[0186] The liquid UV filter concentrates of the presently claimed invention or the UV filter concentrates obtained by the process of the presently claimed invention can also be incorporated into homecare products to prevent sun-induced degradation, fading, and material damage. In particular, the UV filter concentrates impart UV protection to surfaces, helping to maintain the appearance, structural integrity, and longevity of treated surfaces. Such protection is especially valuable in products intended for cleaning, treating, or coating surfaces exposed to sunlight, including wood, furniture, textiles, automotive interiors, glass, and outdoor equipment. By integrating UV filters into homecare formulations, these products offer an additional protective benefit beyond cleaning and conditioning, thereby enhancing product performance and preserving the quality of treated materials over time. Examples of homecare products are surface cleaners, disinfectant wipes, kitchen cleaners, bathroom cleaners, glass cleaners, stainless steel polish, liquid detergents, powder detergents, fabric softeners, laundry boosters, stain removers, antibacterial laundry treatments, hand dishwashing liquids, automatic dishwasher detergents, rinse aids, dishwashing boosters, room fresheners, fabric refreshers, odor neutralizers, reed diffusers, air fresheners, wood polish and protectants, leather conditioners, carpet and upholstery cleaners, floor cleaners, protective coatings for furniture, UV-protective window treatments, antifog glass treatments, self-cleaning glass coatings, car wash and wax solutions, tire and trim protectants, UV-protective dashboard treatments, outdoor furniture protectants, patio and deck cleaners, shoe and leather protectants, anti-static treatments, textile treatments with UV protection, insect-repellent fabric treatments, pet-safe UV protection treatments, he liquid UV filter concentrates of the presently claimed invention or the UV filter concentrates obtained by the process of the presently claimed invention can also be incorporated into a personal care product. Examples of personal care products are shampoos, conditioners, hair rinses, dry shampoos, hair tonics, hair strengthening treatments, hair detanglers, shower gels, body washes, soap bars, liquid hand soaps, exfoliating body scrubs, bath oils, bath foams, bath salts, bath bombs, toothpastes, mouthwashes, dental floss, teeth whitening kits, breath freshening sprays, intimate washes, intimate wipes, feminine deodorants, hand soaps, antibacterial hand gels, cuticle oils, foot creams, foot sprays, foot soaks, roll-on deodorants, stick deodorants, spray deodorants, crystal deodorants, shaving foams, shaving gels, pre-shave oils, post-shave cooling gels, beard oils, beard balms, beard washes, baby shampoos, baby washes, baby oils, baby powders, baby wipes, antibacterial body washes, medicated cleansing bars, sulfur soaps, coal tar soaps, and acne body washes.
[0187] The liquid UV filter concentrates of the presently claimed invention, or the UV filter concentrates obtained by the process of the presently claimed invention, are incorporated into cosmetic compositions in an amount of > 0.001% to < 2.0% by weight, preferably > 0.01% to < 0.75% by weight, and more preferably > 0.1% to < 0.5% by weight, based on the total weight of the cosmetic composition. The liquid UV filter concentrates of the presently claimed invention, or the UV filter concentrates obtained by the process of the presently claimed invention, are incorporated into personal care products in an amount of > 0.001% to < 2.0% by weight, preferably > 0.01% to < 0.75% by weight, and more preferably > 0.1% to < 0.5% by weight, based on the total weight of the personal care product. The liquid UV filter concentrates of the presently claimed invention, or the UV filter concentrates obtained by the process of the presently claimed invention, are incorporated into homecare products in an amount of > 0.001% to < 2.0% by weight, preferably > 0.01% to < 0.75% by weight, and more preferably > 0.1% to < 0.5% by weight, based on the total weight of the homecare product.
[0188] In the following, there is provided a least of embodiments to further illustrate the present disclosure without intending to limit the disclosure to the specific embodiments listed below.
Embodiments:
[0189]
1. A process for preparing a UV filter concentrate which is liquid at room temperature comprising at least the steps of:
(A) heating at least one oil soluble organic UV filter UV1 which is liquid at room temperature to a temperature T1 in the range of > 40 to < 75 °C to obtain a heated solution,
(B) mixing the heated solution of step (A) with at least two different oil soluble organic UV filters UV2 and UV3, wherein the organic oil soluble UV filter UV2 has a melting point MP2 in the range of > 30 to < 130 °C and the organic oil soluble UV filter UV3 has a melting point MP3 in the range of > 30 to < 130 °C, at a temperature T2 in the range of > 50 to < 130 °C to obtain a heated mixture,
(C) keeping the heated mixture of step (B) at a temperature T3 to obtain a UV filter concentrate; wherein the temperature T3 is lower than the highest melting point of the at least two different oil soluble organic UV filters UV2 and UV3 by a range between > 20 to < 70 °C.
[0190] 2. The process according to embodiment 1 , wherein the temperature T3 is lower than the highest melting point of the at least two different oil soluble organic UV filters UV2 and UV3 by a range between > 20 to < 50 °C
[0191]
3. The process according to embodiment 1 or 2, wherein the UV filter concentrate has a viscosity in the range of > 2500 to < 30000 mPa.s at 30 °C determined according to Brookfield DV-III with spindle CP51 at 2.0 rpm.
[0192]
4. The process according to any one of embodiments 1 to 3, wherein step (B) is carried out within a time period in the range of > 5 min to < 24 hours, more preferably in the range of > 2.0 to 3.0 < hours.
[0193]
5. The process according to any one of embodiments 1 to 4, wherein the at least one oil soluble organic UV filter UV1 which is liquid at room temperature is selected from the group consisting of homosalate, octocrylene, 2-ethylhexyl methoxycinnamate, 2- ethylhexyl salicylate, polyacrylamidomethyl benzylidene camphor, menthyl anthranilate, 2-ethylhexyl dimethyl PABA, TEA-salicylate, polysilicone-15, and isoamyl p- m eth oxy ci n n am ate .
[0194]
6. The process according to any one of embodiments 1 to 5, wherein the at least two different oil soluble organic UV filters UV2 and UV3 are selected from the group consisting of diethylhexyl butamido triazone, benzophenone-3, drometrizole trisiloxane, 4- methylbenzylidene camphor, diethylamino hydroxy benzoyl hexyl benzoate, benzophenone-8, butyl methoxydibenzoylmethane, bis-ethylhexyloxyphenol methoxyphenyl triazine, methoxypropylamino cyclohexenylidene ethoxyethylcyanoacetate and ethylhexyl triazone.
[0195]
7. The process according to any one of embodiments 1 to 6, wherein the organic oil soluble UV filter UV2 comprises at least one organic UV filter UV2a and at least one organic UV filter UV2b, wherein the organic oil soluble UV filter UV2a has a melting point MP2a in the range of > 30 to < 70 °C and the organic oil soluble UV filter UV2b has a melting point MP2b in the range of > 71 to < 100 °C.
[0196]
8. The process according to embodiment 7, wherein the at least one organic UV filter UV2a is selected from the group consisting of benzophenone-3, 4-methylbenzylidene camphor, diethylamino hydroxy benzoyl hexyl benzoate and benzophenone-8.
[0197] 9. The process according to embodiment 7, wherein the at least one organic UV filter UV2b is selected from the group consisting of butyl methoxydibenzoylmethane, diethylhexyl butamido triazone, bis-ethylhexyloxyphenol methoxyphenyl triazine, drometrizole trisiloxane and methoxypropylamino cyclohexenylidene ethoxyethylcyanoacetate.
[0198]
10. The process according to any one of embodiments 1 to 9, wherein the organic oil soluble UV filter UV3 has a melting point MP3 in the range of > 101 to < 130 °C.
[0199]
11 . The process according to embodiment 10, wherein the organic oil soluble UV filter UV3 is ethylhexyl triazone.
[0200]
12. The process according to any one of embodiments 1 to 11 , wherein step (B) comprises the steps of
(B1) mixing the heated solution of step (A) with at least one oil soluble organic UV filter UV2a which has a melting point MP2a in the range of > 30 to < 70 °C to obtain a heated mixture 1 ,
(B2) mixing the heated mixture 1 of step (B1) with at least one oil soluble organic UV filter UV2b which has a melting point MP2b in the range of > 71 to < 100 °C to obtain a heated mixture 2,
(B3) mixing the heated mixture 2 of step (B2) with at least one oil soluble organic UV filter UV3 which has a melting point MP3 in the range of > 101 to < 130 °C at a temperature T23 in the range of > 80 to < 130 °C to obtain a heated mixture 3.
[0201]
13. The process according to embodiment 12, wherein in step (B1) mixing takes place at a temperature T21 in the range of > 50 to < 95 °C.
[0202]
14. The process according to embodiment 12 or 13, wherein in step (B2) mixing takes place at a temperature T22 in the range of > 80 to < 100 °C.
[0203]
15. The process according to any one of embodiments 12 to 14, wherein in step (B3) mixing takes place at a temperature T23 in the range of > 100 to < 135 °C.
[0204]
16. The process according to any one of embodiments 1 to 15, wherein step (C) is carried out within a time period in the range of > 1 .0 to < 24 hours, preferably in the range of > 1.0 to < 5.0 hours.
[0205] 17. The process according to any one of embodiments 1 to 16, wherein the process further comprises the step of:
(D) allowing the UV filter concentrate of step (C) to cool to room temperature within a time period in the range of > 30 min to < 48 hours, preferably in the range of > 30 min to
< 24 hours.
[0206]
18. The process according to any one of embodiments 1 to 17, wherein the UV filter concentrate does not contain any oil soluble organic UV filters in its crystalline form.
[0207]
19. The process according to any one of embodiments 1 to 18, wherein the ratio of the sum of weight percentages of at least two different oil soluble organic UV filters UV2 and UV3 to the weight percentage of the at least one oil soluble organic UV filter UV1 is in the range of > 3.0:1.0 to < 20.0:1.0, preferably in the range of > 4.0:1.0 to < 7.0:1.0, wherein the weight percentages are based on the total weight of the UV filter concentrate.
[0208]
20. A UV filter concentrate which is obtained by the process according to any one of embodiments 1 to 19.
[0209]
21. A UV filter concentrate which is liquid at room temperature comprising
(a) at least one oil soluble organic UV filter UV1 which is liquid at room temperature, and
(b) at least two different oil soluble organic UV filters UV2 and UV3, wherein the organic oil soluble UV filter UV2 has a melting point MP2 in the range of > 30 to < 130 °C and the organic oil soluble UV filter UV3 has a melting point MP3 in the range of > 30 to < 130 °C; wherein the UV filter concentrate comprises the at least two different oil soluble organic UV filters UV2 and UV3 in an amount in the range of > 40 to < 94 wt.%, based on the total weight of the UV filter concentrate.
[0210]
22. The UV filter concentrate according to embodiment 21 , wherein the UV filter concentrate comprises the at least two different oil soluble organic UV filters UV2 and UV3 in an amount in the range of > 50 to < 90 wt.%, preferably in an amount in the range of > 60 to
< 85 or 88 wt.%, more preferably in an amount in the range of > 70 to < 85 or 88 wt.%, based on the total weight of the UV filter concentrate.
[0211]
23. The UV filter concentrate according to embodiment 21 or 22, wherein the component (a) is present in an amount in the range of > 4.0 to < 60 wt.%, preferably in the range of > 10 to < 50 wt.%, more preferably in the range of > 12 or 15 to < 40 wt.%, even more preferably in an amount in the range of > 12 or 15 to < 30 wt.%, based on the total weight of the UV filter concentrate.
[0212]
24. The UV filter concentrate according to any one of embodiments 21 to 23, wherein the ratio of the sum of weight percentages of at least two different oil soluble organic UV filters UV2 and UV3 to the weight percentage of the at least one oil soluble organic UV filter UV1 is in the range of > 3.0:1.0 to < 20.0:1.0, preferably in the range of > 4.0:1.0 to < 7.0:1.0, wherein the weight percentages are based on the total weight of the UV filter concentrate.
[0213]
25. The UV filter concentrate according to any one of embodiments 21 to 24, wherein the organic oil soluble UV filter UV2 comprises at least one organic UV filter UV2a and at least one organic UV filter UV2b, wherein the organic oil soluble UV filter UV2a has a melting point MP2a in the range of > 30 to < 70 °C and the organic oil soluble UV filter UV2b has a melting point MP2b in the range of > 71 to < 100 °C.
[0214]
26. The UV filter concentrate according to any one of embodiments 21 to 25, wherein the organic oil soluble UV filter UV3 has a melting point MP3 in the range of > 101 to < 130 °C.
[0215]
27. The UV filter concentrate according to any one of embodiments 21 to 26, wherein the UV filter concentrate comprises
(a) at least one oil soluble organic UV filter UV1 which is liquid at room temperature, (b1) at least one organic oil soluble UV filter UV2a which has a melting point MP2a in the range of > 30 to < 70 °C,
(b2) at least one organic oil soluble UV filter UV2b which has a melting point MP2b in the range of > 71 to < 100 °C,
(c) at least one organic oil soluble UV filter UV3 which has a melting point MP3 in the range of > 101 to < 130 °C.
[0216]
28. The UV filter concentrate according to embodiment 27, wherein the component (a) is 2- ethylhexyl salicylate, the component (b1) is diethylamino hydroxybenzoyl hexyl benzoate, the component (b2) is bis-ethylhexyloxyphenol methoxyphenyl triazine and the component (c) is ethylhexyl triazone.
[0217]
29. The UV filter concentrate according to embodiment 27 or 28, wherein the component (a) is present in an amount in the range of > 10.0 to < 30 wt.%, preferably in an amount in the range of > 10.0 to < 20 wt.%, the component (b1) is present in an amount in the range of > 20 to < 45 wt.%, preferably in an amount in the range of > 20.0 to < 35 wt.%, the component (b2) is present in an amount in the range of > 20 to < 45 wt.%, preferably in an amount in the range of > 20.0 to < 35 wt.%, and the component (c) is present in an amount in the range of > 10.0 to < 30 wt.%, preferably in an amount in the range of > 10.0 to < 20 wt.%.
[0218]
30. The UV filter concentrate according to any one of embodiments 21 to 29, wherein the UV filter concentrate has a viscosity in the range of > 2500 to < 30000 mPa.s at 30 °C determined according to Brookfield DV-III with spindle CP51 at 2.0 rpm.
[0219]
31. The UV filter concentrate according to any one of embodiments 21 to 30, wherein the UV filter concentrate does not contain any oil soluble organic UV filters in its crystalline form.
[0220]
32. The UV filter concentrate according to any one of embodiments 21 to 31 , wherein the UV filter concentrate further comprises at least one oil (d).
[0221]
33. The UV filter concentrate according to embodiment 32, wherein the at least one oil (d) is selected from the group consisting of Guerbet alcohols based on fatty alcohols having 6 to 18 carbon atoms, esters of linear Ce-C22-fatty acids with linear or branched Ce-C22-fatty alcohols or esters of branched Ce-Cis-carboxylic acids with linear or branched Ce-C22-fatty alcohols, esters of linear Ce-022-fatty acids with branched alcohols, esters of linear or branched C2-C10 diols with linear or branched Ce-022-fatty acids, esters of C18-C38- alkylhydroxy carboxylic acids with linear or branched Ce-C 22-fatty alcohols and/or C2-C5 alcohols, esters of linear and/or branched fatty acids with polyhydric alcohols and/or Guerbet alcohols, triglycerides based on Ge -Cw-fatty acids, liquid mono-/di-/triglyceride mixtures based on Ce-Cis-fatty acids, esters of Ce- C22-fatty alcohols and/or Guerbet alcohols with aromatic carboxylic acids, esters of C2- Ci2-dicarboxylic acids with linear or branched alcohols having 1 to 22 carbon atoms or polyols having 2 to 10 carbon atoms and 2 to 6 hydroxyl groups, vegetable oils, branched primary alcohols, substituted cyclohexanes, linear and branched Ce-C22-fatty alcohol carbonates, Guerbet carbonates based on fatty alcohols having 6 to 18, esters of benzoic acid with linear and/or branched Ce-C22-alcohols, linear or branched, symmetrical or a symmetrical dialkyl ethers having 6 to 22 carbon atoms per alkyl group, ring-opening products of epoxidized fatty acid esters with polyols, aliphatic or naphthenic hydrocarbons, fatty acid esters with polyols, aliphatic or naphthenic hydrocarbons, products of the addition of 2 to 30 mol ethylene oxide and/or 0 to 5 mol propylene oxide onto linear C8-22 fatty alcohols, onto C12-22 fatty acids and onto alkyl phenols containing 8 to 15 carbon atoms in the alkyl group, C12/18 fatty acid monoesters and diesters of addition products of 1 to 30 mol ethylene oxide onto glycerol, glycerol mono-, di- and triesters and sorbitan mono- and diesters of saturated and unsaturated fatty acids containing 6 to 22 carbon atoms and ethylene oxide addition products thereof, addition products of 15 to 60 mol ethylene oxide onto castor oil and/or hydrogenated castor oil, addition products of 2 to 15 mol ethylene oxide onto castor oil and/or hydrogenated castor oil, petrolatum, squalane, squalene, isohexadecane, dialkylcyclohexanes, esters of and partial esters based on linear, branched, unsaturated or saturated C6/22 fatty acids, ricinoleic acid and 12-hydroxystearic acid and glycerol, polyglycerol, pentaerythritol, dipentaerythritol and dialkyl ethers of isosorbide.
[0222]
34. The UV filter concentrate according to embodiment 33, wherein the at least one oil (d) is selected from the group consisting of esters of linear or branched C2-C10 diols with linear or branched Ce-C22-fatty acids, esters of Cis-Css-alkylhydroxy carboxylic acids with linear or branched Ce-C 22-fatty alcohols and/or C2-C5 alcohols, esters of C2- Ci2-dicarboxylic acids with linear or branched alcohols having 1 to 22 carbon atoms or polyols having 2 to 10 carbon atoms and 2 to 6 hydroxyl groups, esters of benzoic acid with linear and/or branched C6-C22-alcohols, fatty acid esters with polyols, aliphatic or naphthenic hydrocarbons, glycerol mono-, di- and triesters and partial esters based on linear, branched, unsaturated or saturated C6/22 fatty acids, ricinoleic acid and 12-hydroxystearic acid and glycerol, polyglycerol, pentaerythritol, dipentaerythritol and dialkyl ethers of isosorbide.
[0223]
35. The UV filter concentrate according to any one of embodiments 32 to 34, wherein the at least one oil (d) is selected from the group consisting of ethylhexyl acetoxystearate, propanediol dicaprylate, propanediol caprylate, diethylhexyl 2,6-naphthalate, diisopropyl adipate and caprylic/capric triglyceride.
[0224]
36. The UV filter concentrate according to embodiment 35, wherein the at least one oil (d) comprises ethylhexyl acetoxystearate, propanediol dicaprylate, propanediol caprylate and diethylhexyl 2,6-naphthalate.
[0225]
37. The UV filter concentrate according to any one of embodiments 32 to 34, wherein the at least one oil (d) is a fatty acid ester which is selected from the group consisting of C12 - C15 Alkyl Benzoate, Caprylic/Capric Triglyceride, Caprylic/Capric/Lauric Triglyceride, Caprylic/Capric/Linoleic Triglyceride, Caprylic/Capric/Myristic/Stearic Triglyceride,
Caprylic/Capric/Palmitic/Stearic Triglyceride, Caprylic/Capric/Stearic Triglyceride,
Caprylic/Capric/Succinic Triglyceride, Caprylyl Caprylate, Cetearyl Ethylhexanoate, Cetearyl Isononanoate, Cetearyl Nonanoate, Coco-Caprylate, Decyl Cocoate, Decyl Oleate, Dicaprylyl Carbonate, Diethyl Succinate, Diethylhexyl 2,6-Naphthalate, Diethylhexyl Carbonate, Dibutyl Adipate, Diisopropyl Adipate, Dipropylheptyl Carbonate, Ethyl Laurate, Ethylhexyl Isononanoate, Ethylhexyl Palmitate, Ethylhexyl Stearate, Ethylhexyl acetoxystearate, Glyceryl Caprylate Caprate, Glyceryl Oleate Citrate, Glyceryl Caprylate, Glyceryl Laurate, Glyceryl Triacetyl Hydroxystearate, Glyceryl Triacetyl Ricinoleate, Hexyl Laurate, Isoamyl acetate, Isoamyl Cocoate, Isopropyl Palmitate, Isosorbide Dicaprylate, Isopropyl Myristate, Myristyl Myristate, Oleic/Linoleic Triglyceride, Oleic/Palmitic Triglyceride, Oleic/Palmitic/Lauric/Myristic/Linoleic Triglyceride, Propanediol Caprylate, Ricinoleic/Caproic/Caprylic/ Capric Triglyceride, Oleostearine, Oleyl Erucate, Palmitic/Stearic Triglyceride, Propanediol Dicaprylate Caprate, Propylheptyl Caprylate, Stearyl Heptanoate/Stearyl Caprylate, Triheptanoin, Trihydroxystearin, Triisononanoin, Triisopalmitin, Triisostearin, Trilaurin, Trilinolein, Trilinolenin, Trimyristin, Triolein, Tripalmitin, Tripalmitolein, Tripelargonin, Triricinolein, and Tristearin and dimethyl isosorbide.
[0226]
38. The UV filter concentrate according to any one of embodiments 32 to 37, wherein the at least one oil (d) is present in an amount in the range of > 10.0 to < 50 wt.%, preferably in the range of > 20 to < 45 wt.%, more preferably in the range of > 30 to < 42 wt.%, based on the total weight of the UV filter concentrate.
[0227]
39. The UV filter concentrate according to any one of embodiments 32 to 38, wherein the UV filter concentrate has viscosity is in the range of > 200 to < 1000 mPa.s at 20 °C determined according to Brookfield DV-III with spindle CP51 at 2.0 rpm.
[0228]
40. A sunscreen composition or cosmetic composition or homecare composition comprising at least one UV filter concentrate according to any one of embodiments 21 to 39 or at least one UV filter concentrate which is obtained by the process according to any one of embodiments 1 to 19.
[0229]
41 . The sunscreen composition or cosmetic composition or homecare composition according to embodiment 40 further comprising at least one inorganic UV filter.
[0230]
42. The sunscreen composition or cosmetic composition or homecare composition according to embodiment 40 or 41 further comprising at least one antimicrobial agent.
[0231]
43. The sunscreen composition or cosmetic composition or homecare composition according to any one of embodiments 40 to 42 further comprising at least one excipient and/or cosmetically or pharmaceutically active substance selected from the group consisting of carriers, oil components, rheology additives, hydrotropes, solubilizing agents, powders, film formers, water resistance improving agents, skin moisturizing and/or moistureretaining substances, lenitive substances, physiological cooling agents, antioxidants, agents against ageing of the skin, matrix-metalloproteinase inhibitors (MM PI), anti- inflammatory agents, TRPV1 antagonists, emulsifiers, preservatives, antibacterial or antimycotic active substances, chelating agents, surfactants, fragrances/aroma or perfume oils, and any mixture of two or more of the afore-mentioned substances.
[0232]
44. The sunscreen composition or cosmetic composition or homecare compositions according to any one of embodiments 40 to 43 as a cosmetic, for personal care.
Examples
[0233] The presently claimed invention is illustrated in detail by non-restrictive working examples which follow.
[0234] Example 1 : Preparation process of a UV filter concentrate
[0235] A UV filter concentrate FC1a with the following composition in weight percent, based on the total weight of the composition, was prepared by the process as outlined below.
[0236] Ethylhexyl salicylate was heated to 60 °C while stirring. Diethylamino hydroxy benzoyl hexyl benzoate was added, and the resulting mixture was heated under stirring to 80 °C. The mixture was kept at this temperature until it was clear. Bis-ethylhexyloxyphenol methoxyphenyl triazine was added, and the resulting mixture was heated under stirring to 95 °C. The mixture was kept at this temperature until it was clear. Ethylhexyl triazone was added, and the resulting mixture was heated under stirring to 120 °C. The mixture was kept at 120 °C for 30 minutes. When the mixture was clear, it was allowed to cool down to 100 °C and stirred at this temperature for 240 minutes. The resulting mixture was allowed to cool for 24 hours.
[0237] A clear liquid was obtained that had a slight yellowish tone. The mixture did not contain any crystals. The mixture had a viscosity of 6793 mPa.s at 30 °C determined according to Brookfield DV-III with spindle CP51 at 2.0 rpm.
[0238] The mixture was stored for a period of 3 months at room temperature in a closed container and still did not show any crystals.
[0239] The following UV filter concentrate FC1 b which is outside the scope of the presently claimed invention was prepared as well.
[0240] Bis-ethylhexyloxyphenol methoxyphenyl triazine was heated under stirring to 95 °C. The mixture was kept at this temperature until it was clear. Diethylamino hydroxy benzoyl hexyl benzoate and Ethylhexyl triazone were added, and the resulting mixture was heated under stirring to 120 °C. The mixture was kept at 120 °C for 30 minutes. When the mixture was clear, it was allowed to cool down to 100 °C and stirred at this temperature for 240 minutes. The resulting mixture was allowed to cool for 24 hours. A mixture in the form of crystals was obtained. [0241] Example 2:
[0242] The following UV filter concentrates FCIc to FCIh and FCIk and FC1m with the following composition in weight percent, based on the total weight of the composition, were prepared by the process as described under Example 1. In each case the liquid UV filter (ethylhexyl salicylate, homosalate, octocrylene, 2-ethylhexyl methoxycinnamate, isoamyl p-methoxycinnamate) was heated to 60 °C and then the subsequent steps as described under Example 1 were carried out.
[0243] Each UV filter concentrate FC1c to FC1h was present as a clear liquid that had a slight yellowish tone. The mixtures did not contain any crystals. UV filter concentrates FC1k and FC1m did contain crystals. outside the scope of the presently claimed invention
[0244] Example 3: Hot-in-hot manufacturing of sunscreen composition
[0245] The UV filter concentrate FC1a of the presently claimed invention was effectively incorporated in a wide array of different amounts into a homogeneous sunscreen composition by a conventional hot-in-hot manufacturing process.
[0246] Example 4: Cold-in-Cold manufacturing of sunscreen composition
[0247] The UV filter concentrate FC1a of the presently claimed invention was effectively incorporated in a wide array of different amounts into a homogeneous sunscreen composition by a conventional cold-in-cold manufacturing process.
Example 5: Sun Protection Soft Cream W/O; SPF 40
Composition of perfume oil 1 (PO1 ; amounts in %o by weight)
Composition of perfume oil 2 (PO2; amounts in %o by weight)
Composition of perfume oil 3 (PO3; amounts in %o by weight)
Composition of perfume oil 4 (PO4; amounts in %o by weight)
Composition of perfume oil 5 (PO5; amounts in %o by weight)
[0248] Example 6: Sunscreen Lotion (O/W; Broadband Protection)
[0249] Example 7: Antibacterial body lotion, sprayable, SPF 30
[0250] Example 8: Daily face cream; SPF 20
[0251] Example 9: Clear Liquid Hand Soap
[0252] Example 12: Soap Bar
[0253] Example 13: All-purpose cleaner
[0254] Example 14: APC alkaline
[0256] Example 16: Detergent liquid light duty
[0257] Example 17: Detergent liquid light duty
[0258] Example 18: Dishwash liquid manual
[0259] Example 19: Fabric softener
[0260] Example 20: Fabric softener concentrate, encapsulated
[0261] Example 21 : Fabric softener concentrate, encapsulated
[0262] Example 22: Hand soap, liquid
[0263] Example 23: Rim block gel
[0264] Example 24: Cleaner, liquid, lactic acid
[0265] Example 25: Cleaner, liquid, citric acid
[0266] Example 26: ADW (Auto Dish Washing) gel
[0267] Example 27: Deodorant Spray with ACH
[0268] Example 28: Cool Relief Deo Plus
[0269] Example 29: Sport Fit Deo
[0270] Example 30: Deodorant stick
[0271] Example 31 : Antiperspirant stick
[0273] Example 33: Clear deo anti-perspirant roll-on
[0274] Example 34: After Shave Tonic
[0276] Example 36: Frosty Facial Foam
[0277] Example 37: Hydration Face Gel, water clear
[0278] Example 38: Biotic Acne Control Gel
[0279] Example 39: Anti-wrinkle gel
[0281] Example 41 : Sprayable Anti Cellulite Gel
[0282] Example 42: Floor Cleaner with gloss
[0283] Example 43: Simple floor cleaner
[0284] Example 44: Hot-in-Cold manufacturing of sunscreen composition [0285] The UV filter concentrate FC1a of the presently claimed invention was effectively incorporated in a wide array of different amounts into a homogeneous sunscreen composition by a conventional hot-in-cold manufacturing process.
[0286] Example 45: Preparation process of a UV filter concentrate containing at least one oil
[0287] A UV filter concentrate FC6a with the following composition in weight percent, based on the total weight of the composition, was prepared by the process as outlined below.
[0288] Ethylhexyl salicylate and the oil were heated to 80 °C while stirring. Diethylamino hydroxy benzoyl hexyl benzoate, Bis-ethylhexyloxyphenol methoxyphenyl triazine and Ethylhexyl triazone were added, and the resulting mixture was heated under stirring to 100 °C. The mixture was kept at 100 °C. When the mixture was clear, it was stirred at 100 °C for 240 minutes. The resulting mixture was allowed to cool for 24 hours.
[0289] A clear liquid was obtained that had a slight yellowish tone. The mixture did not contain any crystals. The mixture had a viscosity of 585 mPa.s at 20 °C determined according to Brookfield DV-III with spindle CP51 at 2.0 rpm.
[0290] The mixture was stored for a period of 3 months at room temperature in a closed container and still did not show any crystals.

Claims

Claims:
1. A process for preparing a UV filter concentrate which is liquid at room temperature comprising at least the steps of:
(A) heating at least one oil soluble organic UV filter UV1 which is liquid at room temperature to a temperature T1 in the range of > 40 to < 75 °C to obtain a heated solution,
(B) mixing the heated solution of step (A) with at least two different oil soluble organic UV filters UV2 and UV3, wherein the organic oil soluble UV filter UV2 has a melting point MP2 in the range of > 30 to < 130 °C and the organic oil soluble UV filter UV3 has a melting point MP3 in the range of > 30 to < 135 °C, at a temperature T2 in the range of > 50 to < 135 °C to obtain a heated mixture,
(C) keeping the heated mixture of step (B) at a temperature T3 to obtain a UV filter concentrate; wherein the temperature T3 is lower than the highest melting point of the at least two different oil soluble organic UV filters UV2 and UV3 by a range between > 20 to < 70 °C.
2. The process according to claim 1 , wherein the temperature T3 is lower than the highest melting point of the at least two different oil soluble organic UV filters UV2 and UV3 by a range between > 20 to < 50 °C.
3. The process according to claim 1 or 2, wherein the UV filter concentrate has a viscosity in the range of > 2500 to < 30000 mPa.s at 30 °C determined according to Brookfield DV-III with spindle CP51 at 2.0 rpm.
4. The process according to any one of claims 1 to 3, wherein the at least one oil soluble organic UV filter UV1 which is liquid at room temperature is selected from the group consisting of homosalate, octocrylene, 2-ethylhexyl methoxycinnamate, 2-ethylhexyl salicylate, polyacrylamidomethyl benzylidene camphor, menthyl anthranilate, 2-ethylhexyl dimethyl PABA, TEA-salicylate, polysilicone-15, and isoamyl p-methoxycinnamate.
5. The process according to any one of claims 1 to 4, wherein the at least two different oil soluble organic UV filters UV2 and UV3 are selected from the group consisting of diethylhexyl butamido triazone, benzophenone-3, drometrizole trisiloxane, 4- methylbenzylidene camphor, diethylamino hydroxy benzoyl hexyl benzoate, benzophenone-8, butyl methoxydibenzoylmethane, bis-ethylhexyloxyphenol methoxyphenyl triazine, methoxypropylamino cyclohexenylidene ethoxyethylcyanoacetate and ethylhexyl triazone.
6. The process according to any one of claims 1 to 5, wherein the organic oil soluble UV filter UV2 comprises at least one organic UV filter UV2a and at least one organic UV filter UV2b, wherein the organic oil soluble UV filter UV2a has a melting point MP2a in the range of > 30 to < 70 °C and the organic oil soluble UV filter UV2b has a melting point MP2b in the range of > 71 to < 100 °C.
7. The process according to any one of claims 1 to 6, wherein the organic oil soluble UV filter UV3 has a melting point MP3 in the range of > 101 to < 135 °C.
8. The process according to claim 7, wherein the organic oil soluble UV filter UV3 is ethylhexyl triazone.
9. The process according to any one of claims 1 to 8, wherein the UV filter concentrate does not contain any oil soluble organic UV filters in its crystalline form.
10. A UV filter concentrate which is obtained by the process according to any one of claims 1 to 9.
11. A UV filter concentrate which is liquid at room temperature comprising
(a) > 10 to < 50 wt.% of at least one oil soluble organic UV filter UV1 which is liquid at room temperature, and
(b) at least two different oil soluble organic UV filters UV2 and UV3, wherein the organic oil soluble UV filter UV2 has a melting point MP2 in the range of > 30 to < 130 °C and the organic oil soluble UV filter UV3 has a melting point MP3 in the range of > 30 to < 135 °C; wherein the UV filter concentrate comprises the at least two different oil soluble organic UV filters UV2 and UV3 in an amount in the range of > 40 to < 94 wt.%, based on the total weight of the UV filter concentrate.
12. The UV filter concentrate according to claim 11 , wherein the UV filter concentrate comprises the at least two different oil soluble organic UV filters UV2 and UV3 in an amount in the range of > 50 to < 90 wt.%, preferably in an amount in the range of > 60 to < 85 or 88 wt.%, more preferably in an amount in the range of > 70 to < 85 or 88 wt.%, based on the total weight of the UV filter concentrate and the component (a) is present in an amount in the range of > 12 or 15 to < 40 wt.%, even more preferably in the range of > 12 or 15 to < 30 wt.%, based on the total weight of the UV filter concentrate.
13. The UV filter concentrate according to any one of claims 11 to 12, wherein the UV filter concentrate comprises
(a) at least one oil soluble organic UV filter UV1 which is liquid at room temperature,
(b1) at least one organic oil soluble UV filter UV2a which has a melting point MP2a in the range of > 30 to < 70 °C,
(b2) at least one organic oil soluble UV filter UV2b which has a melting point MP2b in the range of > 71 to < 100 °C,
(c) at least one organic oil soluble UV filter UV3 which has a melting point MP3 in the range of > 101 to < 135 °C.
14. The UV filter concentrate according to claim 13, wherein the component (a) is 2-ethylhexyl salicylate, the component (b1) is diethylamino hydroxy benzoyl hexyl benzoate, the component (b2) is bis-ethylhexyloxyphenol methoxyphenyl triazine and the component (c) is ethylhexyl triazone.
15. The UV filter concentrate according to claim 13 or 14, wherein the component (a) is present in an amount in the range of > 10.0 to < 30 wt.%, preferably in an amount in the range of > 10.0 to < 20 wt.%, the component (b1) is present in an amount in the range of > 20 to < 45 wt.%, preferably in an amount in the range of > 20.0 to < 35 wt.%, the component (b2) is present in an amount in the range of > 20 to < 45 wt.%, preferably in an amount in the range of > 20.0 to < 35 wt.%, and the component (c) is present in an amount in the range of > 10.0 to < 30 wt.%.
16. The UV filter concentrate according to any one of claims 11 to 15, wherein the UV filter concentrate has a viscosity in the range of > 2500 to < 30000 mPa.s at 30 °C determined according to Brookfield DV-III with spindle CP51 at 2.0 rpm.
17. A sunscreen composition or cosmetic composition or homecare composition comprising at least one UV filter concentrate according to any one of claims 10 to 16 or at least one UV filter concentrate obtained by the process according to any one of claims 1 to 9.
18. A sunscreen composition or cosmetic composition or homecare composition according to claim 17, wherein the composition further comprises at least one UV filter selected from the group consisting of 2-ethylhexyl salicylate, ethylhexyl triazone, butyl methoxydibenzoylmethane, terephthalylidene dibornanesulphonic acid and salts, hexyl 2- (4-diethylamino-2-hydroxybenzoyl)benzoate, menthyl anthranilate, 2,2'-(1 ,4- phenylene)bis-[1 H-benzimidazole-4,5-disulfonic acid] disodium salt, methoxy propylamino cyclohexenylidene ethoxyethyl cyanoacetate, octocrylene, homosalate, octisalate, 2- ethylhexyl p-dimethylaminobenzoate, triethanolamine salicylate, 2-ethylhexyl p- methoxycinnamate, isoamyl p-methoxycinnamate, 2-phenylbenzimidazole sulfonic acid and its salts, 3-(4'-methylbenzylidene)-d,l-camphor, 4,4'-[(6-[4-(1 , 1- dimethyl)aminocarbonyl)phenylamino]-1 ,3,5-triazine-2,4-diyl)diimino]bis(benzoic acid 2- ethylhexyl ester), benzylidenemalonate-polysiloxane, tris(2-ethylhexyl)4,4',4"-(1 ,3,5- triazine-2,4,6-triyltriimino)tribenzoate, bis-ethylhexyloxyphenol methoxyphenyl triazine, 2- hydroxy-4-methoxybenzophenone-5-sulfonic acid and its salts, 2-hydroxy-4- methoxybenzophenone, phenol, -(2H-benzotriazol-2-yl-4-methyl-6-(2-methyl-3-(1 , 3,3,3- tetramethyl-l-(trimethylsilyl)oxy)disiloxanyl)propyl), 2,2'-methylene-bis(6-(2H-benztriazol- 2-yl)-4-1 ,1 ,3,3-tetramethylbutyl)-phenol, tris-biphenyl triazine, and 5,6,5',6'-tetraphenyl-
3, 3'-( 1 ,4-phenylene)bis(1 ,2,4-triazine).
PCT/EP2025/054824 2024-02-23 2025-02-23 Liquid uv filter concentrate Pending WO2025176895A1 (en)

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PCT/EP2024/054633 WO2025176314A1 (en) 2024-02-23 2024-02-23 Liquid uv filter concentrate
EPPCT/EP2024/054633 2024-02-23

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004047833A2 (en) 2002-11-25 2004-06-10 Symrise Gmbh & Co. Kg Anthranilic acid amides and the derivatives thereof as cosmetic and pharmaceutical agents
WO2014180818A1 (en) * 2013-05-10 2014-11-13 Basf Se Agent containing large quantities of uv stabilizers
WO2023049821A1 (en) * 2021-09-23 2023-03-30 Edgewell Personal Care Brands, Llc Sunscreen composition with crystalline organic sunscreen filters

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004047833A2 (en) 2002-11-25 2004-06-10 Symrise Gmbh & Co. Kg Anthranilic acid amides and the derivatives thereof as cosmetic and pharmaceutical agents
WO2014180818A1 (en) * 2013-05-10 2014-11-13 Basf Se Agent containing large quantities of uv stabilizers
WO2023049821A1 (en) * 2021-09-23 2023-03-30 Edgewell Personal Care Brands, Llc Sunscreen composition with crystalline organic sunscreen filters

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