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WO2025099148A1 - Composition d'hygiène personnelle liquide transparente - Google Patents

Composition d'hygiène personnelle liquide transparente Download PDF

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Publication number
WO2025099148A1
WO2025099148A1 PCT/EP2024/081490 EP2024081490W WO2025099148A1 WO 2025099148 A1 WO2025099148 A1 WO 2025099148A1 EP 2024081490 W EP2024081490 W EP 2024081490W WO 2025099148 A1 WO2025099148 A1 WO 2025099148A1
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WO
WIPO (PCT)
Prior art keywords
soap
composition
surfactant
cleansing composition
present
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/EP2024/081490
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English (en)
Inventor
Manisha Prashant KHARKAR
Shivangi KAUL
Keerthi PRASAD
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.)
Unilever Global IP Ltd
Unilever IP Holdings BV
Conopco Inc
Original Assignee
Unilever Global IP Ltd
Unilever IP Holdings BV
Conopco Inc
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Filing date
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Publication of WO2025099148A1 publication Critical patent/WO2025099148A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
    • A61K8/34—Alcohols
    • A61K8/345—Alcohols containing more than one hydroxy group
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
    • A61K8/36—Carboxylic acids; Salts or anhydrides thereof
    • A61K8/361—Carboxylic acids having more than seven carbon atoms in an unbroken chain; Salts or anhydrides thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q19/00—Preparations for care of the skin
    • A61Q19/10—Washing or bathing preparations
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D9/00—Compositions of detergents based essentially on soap
    • C11D9/04—Compositions of detergents based essentially on soap containing compounding ingredients other than soaps
    • C11D9/22—Organic compounds, e.g. vitamins
    • C11D9/26—Organic compounds, e.g. vitamins containing oxygen
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
    • A61K2800/20—Chemical, physico-chemical or functional or structural properties of the composition as a whole
    • A61K2800/26—Optical properties
    • A61K2800/262—Transparent; Translucent

Definitions

  • the present invention relates to aqueous skin cleansing compositions suitable for topical application for cleansing the human body, such as the skin and hair.
  • aqueous skin cleansing compositions suitable for topical application for cleansing the human body, such as the skin and hair.
  • transparent liquid compositions that retain their transparency at low temperatures.
  • Liquid soap compositions particularly transparent soaps, have aesthetic appeal. These are often used for specialised applications like hand wash and face wash, and are particularly preferred for out-of-home applications such as during travel, at hotels and restaurants, where people are very conscious of hygiene, and where there is possibility of contamination at the wash place due to the large number of people using the soap.
  • Liquid soaps are usually alkali metal salts of fatty acids which, are saturated. Among the alkali metals, potassium is preferred over sodium, as potassium fatty acid soaps are more soluble in water, thereby maintaining the liquid state in the formulation. However potassium salts are more expensive.
  • Non- soap detergents (NSD) are also incorporated in such compositions that provide improved solubility in water.
  • a clear and transparent appearance of personal care products has advantages in the market since it can be attributed pureness, mildness, cleanliness, freshness or lightness to consumers. Another benefit of a clear appearance, in combination with a transparent packaging, is that the consumer is readily able to view and inspect the product.
  • US4310432 (Lever Brothers Company, 1982) claims an aqueous liquid soap solution containing from 20 percent to 45 percent by weight of a sodium soap consisting essentially of a mixture of (A) at least one sodium soap of C8 to C14 saturated fatty acid, and (B) at least one sodium soap of fatty acids selected from the group consisting essentially of C16 to C22 mono and di unsaturated fatty acids and mixtures thereof.
  • Synthetic surfactant based cleansing products can provide clear appearance products, but have been known to have relatively weak cleansing performance and coarse lathering compared to soap-based products. While inclusion of soap in cleansing products can improve cleansing performance and/or lather properties to deliver a rich and creamy-feel lathering of synthetic surfactant based cleansing products, such inclusion of soap tends to make product appearance translucent or opaque. Inclusion of soap also leads to another problem of the composition turning turbid at low temperatures. It is seen that in cooler climate regions and during winters such compositions no longer remain transparent and their appearance tends to change with the temperature.
  • present invention discloses a transparent liquid personal cleansing composition
  • a transparent liquid personal cleansing composition comprising: a. 5 to 30 wt% soap; b. 0.5 to 10wt% non-soap surfactant; c. 1 to 20 wt% polyol comprising polyhydric glycol; d. 60 to 90 wt% water; and wherein the free fatty acid content is less than 0.1 wt%; and wherein the soap comprises soap of long chain fatty acids (C14 to C30) and soap of short chain fatty acids (C8 toC12) in a weight ratio of 1 :1.5 to 1 :10.
  • Second aspect of the present invention provides a method of preparing a transparent liquid personal cleansing composition according to the first aspect, the method comprising steps of: a. dispersing thickening polymer in water to obtain aqueous mixture, b. adding fatty acid to the aqueous mixture and neutralising with alkali for obtain a liquid soap; c. adding non-soap surfactants to the liquid soap of step ‘b’. wherein chelating agents and polyol is added at step ‘a’ or step ‘b’.
  • Third aspect of the present invention provides a use of the personal cleansing composition according to the first aspect in manufacture of a transparent personal cleansing composition.
  • Fourth aspect of the present invention provides use of polyol comprising propylene glycol in manufacture of transparent cleansing compositions that are transparent at temperatures of up to 4 deg C.
  • Another aspect of the present invention provides a packaged personal care/personal wash product comprising: a container or bottle comprising a label or advertising intended for sale or distribution to consumers; and a soap composition according to the first aspect of this invention.
  • the present invention relates to aqueous skin cleansing compositions suitable for topical application for cleansing the human body, such as the skin and hair.
  • aqueous skin cleansing compositions suitable for topical application for cleansing the human body, such as the skin and hair.
  • transparent liquid compositions that retain their transparency at low temperatures.
  • the present invention provides a transparent liquid personal cleansing composition
  • a transparent liquid personal cleansing composition comprising: 5 to 30 wt% soap; 0.5 to 10wt% non-soap surfactant; 1 to 20 wt% polyol comprising polyhydric glycol; 60 to 90 wt% water; and wherein the free fatty acid content is less than 0.1 wt%; and wherein the soap comprises soap of long chain fatty acids (C14 to C30) and soap of short chain fatty acids (C8 to C12) in a weight ratio of 1 :1.5 to 1 :10.
  • the present inventors were faced with the problem of transparent liquid soap compositions remaining transparent at low temperatures with change of season or when required to be marketed in cooler regions of the world.
  • Polyols have been considered in past for transparency, but mere inclusion of polyols did not ensure transparency at low temperatures.
  • soap compositions particularly are more difficult to make transparent.
  • raising the levels of polyols also does not help with transparency and may not be acceptable by the consumers for sensory reasons.
  • the present inventors were also faced with a proposition to prepare a cost effective composition. The present inventors worked around a lot of different formulations and propylene glycol was found to be useful, however higher levels of polypropylene glycols would increase the costs tremendously.
  • the problem to be solved was many fold: to prepare a soap based cleansing composition which is transparent, cost effective and which remains transparent even at low temperatures. It was a surprising finding that in the present invention, that when the composition was formulated in a way so as to have critical ratio and proportions of ingredients according to the first aspect of the present invention, the inventors were able to have a composition within a window of ranges of different ingredients when the liquid transparent composition was transparent at low temperatures of 4 deg C while keeping the level of propylene glycol low.
  • Transparent liquid personal cleansing composition comprising: 5 to 30 wt% soap; 0.5 to 10wt% non-soap surfactant; 1 to 20 wt% polyol comprising polyhydric glycol; 60 to 90 wt% water; and wherein the free fatty acid content is less than 0.1 wt%; and wherein the soap comprises soap of long chain fatty acids (C14 to C30) and soap of short chain fatty acids (C8 to C12) in a weight ratio of 1 :1.5 to 1 :10.
  • composition of the present invention is substantially transparent. Transparency of liquid compositions may be characterized by transmittance measurement.
  • the cleansing composition has about 5 to 30 wt% of soap, more preferably 7 to 25 wt% and most preferably about 10 to 23wt% of soap by weight of the cleansing composition; wherein at least 95wt% soap of the fatty acid of the total soap is neutralized. It is preferable that the cleansing composition has 0.1 to 27 wt% of total fatty matter (TFM).
  • soap means salts of fatty acids in which the accompanying cation may be an alkali metal, alkaline earth metal or ammonium ion, preferably an alkali metal.
  • the cation is sodium or potassium.
  • the soap may be saturated or unsaturated and it depends on the nature of the corresponding fatty acid and/or oil used for saponification.
  • the cleansing composition comprises 0.1 to 8 wt%, more preferably 2 to 7 wt% and most preferably about 3 to 6 wt% of salt of long (C14 to C30) chain fatty acids by weight of the cleansing composition.
  • the soap comprises 10 to 50 wt%, more preferably 20 to 40 wt% and most preferably about 25 to 35 wt% of soap of long (C14 to C30) chain fatty acids by weight of the total soap.
  • the soap comprises 50 to 90 wt%, more preferably 60 to 80 wt% and most preferably about 65 to 75 wt% of soap of short (C8 to C12) chain length fatty acids by weight of the total soap.
  • the cleansing composition comprises 6 to 16 wt%, more preferably 8 to 14 wt% and most preferably about 9 to 12 wt% of salt of short (C8 to C12) chain length fatty acids by weight of the cleansing composition. It is preferred that the weight ratio of salt of long (C14 to C30) chain fatty acids to salt of short (C8 to C12) chain length fatty acids is in the range of 1 :1.5 to 1 :10; more preferably 1 :2 to 1 :8 and most preferably 1 :2.1 to 1 :6.
  • the composition of the present invention comprises polyols in the range of 1 to 20 wt%, more preferably in the range of 2 to 18wt% and most preferably in the range of 3 to 15wt%. It is most preferred that the polyols comprise polyhydric glycols. It is preferred that the polyhydric alcohols are present in the range of 0.5 to 10wt%, more preferably 1 to 10wt% and most preferably in the range of 2 to 10 wt%. It is preferred that the polyhydric glycols are selected from the group of C3 to C6 hydric glycols and mixtures thereof.
  • Typical polyhydric alcohols include polyalkylene glycols and more preferably alkylene polyols and their derivatives.
  • Illustrative are propylene glycol, dipropylene glycol, polypropylene glycol, glycerin, polyethylene glycol, sorbitol, hydroxypropyl sorbitol, hexylene glycol, 1 ,3-butylene glycol, 1 ,2,6-hexanetriol, ethoxylated glycerin, propoxylated glycerin and mixtures thereof.
  • composition of the present invention comprises of a mixture of glycerine and other polyhydric alcohols and it is further preferred that the composition of the present invention comprises of a mixture of glycerine and propylene glycol.
  • the present invention comprises glycerine in the range of 1 to 10 wt% glycerin, more preferably 2 to 9 wt% and most preferably 2.5 to 8.5 wt% by weight of the cleansing composition.
  • the present invention comprises propylene glycol in the range of 0.5 to 10 wt% , more preferably 1 to 9 wt% and most preferably 1 .5 to 8.5 wt% by weight of the cleansing composition.
  • the soap to polyol weight ratio in the cleansing composition ranges from 1.1 :1 to 3:1 , more preferably 1.5:1 to 2.3:1 and most preferably 1.64:1 to 2.2:1.
  • the cleansing composition comprises 0.5 to 10 wt%, more preferably in the range of 1 to 8 wt%, further, more preferably in the range of 2 to 7wt% and most preferably in the range of 2 to 6wt% of non-soap surfactant by weight of the cleansing composition.
  • the compositions of the present invention may contain anionic surfactants, non-ionic surfactants, cationic surfactants or amphoteric surfactants.
  • the synthetic anionic detergent active which may be used in the invention may be aliphatic sulfonates, such as a primary alkane (e.g., C8-C22) sulfonate, primary alkane (e.g., C8-C22) disulfonate, C8-C22 alkene sulfonate, C8-C22 hydroxyalkane sulfonate or alkyl glyceryl ether sulfonate (AGS); or aromatic sulfonates such as alkyl benzene sulfonate.
  • a primary alkane e.g., C8-C22
  • primary alkane e.g., C8-C22
  • disulfonate C8-C22 alkene sulfonate
  • C8-C22 hydroxyalkane sulfonate C8-C22 hydroxyalkane sulfonate
  • the anionic may also be an alkyl sulfate (e.g., C12-C18 alkyl sulfate) or alkyl ether sulfate (including alkyl glyceryl ether sulfates).
  • alkyl ether sulfates are those having the formula:
  • RO(CH 2 CH 2 O) n SO 3 M wherein R is an alkyl or alkenyl having 8 to 18 carbons, preferably 12 to 18 carbons, n has an average value of greater than 1.0, preferably lesser than 3; and M is a solubilizing cation such as sodium, potassium, ammonium or substituted ammonium. Ammonium and sodium lauryl ether sulfates are preferred.
  • the anionic may also be alkyl sulfosuccinates (including mono- and dialkyl, e.g., C6-C22 sulfosuccinates); alkyl and acyl taurates, alkyl and acyl sarcosinates, sulfoacetates, C8-C22 alkyl phosphates and phosphates, alkyl phosphate esters and alkoxyl alkyl phosphate esters, acyl lactates, C8-C22 monoalkyl succinates and maleates, sulphoacetates, alkyl glucosides and acyl isethionates, and the like.
  • alkyl sulfosuccinates including mono- and dialkyl, e.g., C6-C22 sulfosuccinates
  • alkyl and acyl taurates alkyl and acyl sarcosinates
  • Sulfosuccinates may be monoalkyl sulfosuccinates having the formula: R 4 O2CCH 2 CH(SO3M)CO2l ⁇ /l; and amide-MEA sulfosuccinates of the formula;
  • R 4 CONHCH2CH2O2CCH 2 CH(SO 3 M)CO2l ⁇ /l wherein R 4 ranges from C8-C22 alkyl and M is a solubilizing cation.
  • R 1 CON(CH 3 )CH 2 CO 2 M, wherein R 1 ranges from C8-C20 alkyl and M is a solubilizing cation.
  • Taurates are generally identified by formula:
  • the inventive cleansing composition may contain Cs-Cis acyl isethionates. These esters are prepared by reaction between alkali metal isethionate with mixed aliphatic carboxylic acids having from 6 to 18 carbon atoms and an iodine value of less than 20. At least 75% of the mixed carboxylic acids have from 12 to 18 carbon atoms and up to 25% have from 6 to 10 carbon atoms.
  • the acyl isethionate may be an alkoxylated isethionate such as is described in llardi et al., U.S. Patent No. 5,393,466, titled “Fatty Acid Esters of Polyalkoxylated isethonic acid; issued February 28, 1995; hereby incorporated by reference.
  • This compound has the general formula:
  • R C-O(O)-C(X)H-C(Y)H2-(OCH-CH 2 )m-SO 3 M + wherein R is an alkyl group having 8 to 18 carbons, m is an integer from 1 to 4, X and Y are hydrogen or an alkyl group having 1 to 4 carbons and M + is a monovalent cation such as, for example, sodium, potassium or ammonium.
  • anionic surfactants for the compositions of the present invention are selected from the group of sulfonic acids, their salts; alkyl ether sulfates; mixtures and combinations thereof.
  • Most preferable anionic surfactants may include sodium lauryl ether sulfate, its derivatives such as ethylene oxide derivatives and the likes.
  • the cleansing composition comprises anionic surfactant in the range of 0.01 to 10 wt%, more preferably in the range of 0.1 to 8 wt%, further, more preferably in the range of 1 to 7wt% and most preferably in the range of 2 to 6wt% by weight of the composition.
  • the cationic surfactants for the purposes of the present invention are, for example, quarternary surfactants, these include, but are not limited to: benzalkonium chloride, alkyl betaine, alkylamidopropyl betaine, alkyl-amidopropylhydroxysultaine alkylamines, alkylimidazoles and ethoxylated amines. It is preferred that the cleansing composition comprises cationic surfactant in the range of-0.01 to 10 wt%, more preferably in the range of 0.1 to 8 wt%, further, more preferably in the range of 1 to 7wt% and most preferably in the range of 2 to 6wt% by weight of the composition.
  • amphoteric surfactants for the purposes of the present invention are, for example, acyl I dialkylethylene diamines, for example sodium acylamphoacetate, Cocamidopropyl betaine (CAPB), disodium acyl amphodipropionate, disodium alkylamphodiacetate, sodium acrylamphohydroxypropyl sulfonate, disodium acrylamphodiacetate and sodium acrylamphopropionate, N-alkylamino acids, for example aminopropyl alkylglutamide, alkylaminopropionic acid, sodium alkylimidodipropionate and lauroamphocarboxyglycinate.
  • acyl I dialkylethylene diamines for example sodium acylamphoacetate
  • Cocamidopropyl betaine (CAPB) disodium acyl amphodipropionate
  • disodium alkylamphodiacetate sodium acrylamphohydroxypropyl sulfonate
  • the cleansing composition comprises amphoteric surfactant in the range of 0.01 to 10 wt%, more preferably in the range of 0.1 to 8 wt%, further, more preferably in the range of 1 to 7wt% and most preferably in the range of 2 to 6wt% by weight of the composition.
  • compositions will comprise a combination of anionic synthetic and amphoteric Surfactant (e.g., betaine), especially when anionic comprises 50% or greater of such mixture of synthetics.
  • anionic synthetic and amphoteric Surfactant e.g., betaine
  • Nonionic surfactant(s) may be used in the cleansing composition of the present invention as a co-surfactant.
  • Nonionic surfactants are preferably used at levels as low as 5, 7.5 or 10% by wt. and at levels as high as 20, 25 or 30% by wt.
  • the nonionic surfactants which may be used include in particular the reaction products of compounds having a hydrophobic group and a reactive hydrogen atom, for example aliphatic alcohols, acids, amides or alkylphenols with alkylene oxides, especially ethylene oxide either alone or with propylene oxide.
  • nonionic detergent compounds are alkyl (C6-C22) phenols ethylene oxide condensates, the condensation products of aliphatic (Cs-Cis) primary or secondary linear or branched alcohols with ethylene oxide, and products made by condensation of ethylene oxide with the reaction products of propylene oxide and ethylenediamine.
  • Other so-called nonionic detergent compounds include long chain tertiary amine oxides, long chain tertiary phosphine oxides and dialkyl sulphoxide, and the like.
  • the nonionic may also include a sugar amide, such as a polysaccharide amide.
  • the surfactant may be one of the lactobionamides described in U.S. Patent No. 5,389,279 to Au et al. titled “Compositions Comprising Nonionic Glycolipid Surfactants issued February 14, 1995; which is hereby incorporated by reference or it may be one of the sugar amides described in Patent No. 5,009,814 to Kelkenberg, titled “Use of N-Poly Hydroxyalkyl Fatty Acid Amides as Thickening Agents for Liquid Aqueous Surfactant Systems” issued April 23, 1991 ; hereby incorporated into the subject application by reference.
  • non-ionic surfactants for the purposes of the present invention are, for example, Alkanolamides, such as Cocamide MEA DEA/ MIPA, esters produced by the esterification of carboxylic acids with ethylene oxide, glycerol, sorbitan or other alcohols, ethers, for example ethoxylated alcohols, ethoxylated lanolin, ethoxylated poly-siloxanes, propoxylated POE ethers and alkyl polyglycosides such as lauryl glucoside, decyl glucoside and cocoglucoside.
  • Alkanolamides such as Cocamide MEA DEA/ MIPA
  • ethers for example ethoxylated alcohols, ethoxylated lanolin, ethoxylated poly-siloxanes
  • the cleansing composition comprises non-ionic surfactant in the range of 0.01 to 10 wt%, more preferably in the range of 0.1 to 8 wt%, further, more preferably in the range of 1 to 7wt% and most preferably in the range of 2 to 6wt%.
  • Suitable surfactants that may be used in the formulations disclosed herein may comprise one or more of sodium cocoyl isethionate, Sodium Lauryl Sulfate, disodium lauryl sulfosuccinate, lauryl glucoside, myristyl glucoside, decyl glucoside, sodium sulfate, sodium silicate, Cocamidopropyl betaine, sodium coco sulfate, sodium lauryl sulfate.
  • the surfactant may comprise sodium cocoyl isethionate.
  • the surfactant may comprise disodium lauryl sulfosuccinate
  • the surfactant may comprise a mixture of lauryl glucoside, myristyl glucoside, sodium sulfate, sodium silicate, and sodium coco sulfate).
  • the surfactant may comprise sodium lauryl sulfate. Suitable surfactants are not limited to the ones enumerated herein and may include other surfactants that are in powder form prior to their incorporation into the formulation and are water-soluble to maximize the cleansing potential of the formulation.
  • alkoxylated nonionic surfactants which are a class of nonionic surfactants, are defined specifically as co-surfactants.
  • alkoxylated nonionic surfactants, which are co-surfactants are differentiated from the other nonionic surfactants defined previously, in that alkoxylated nonionic surfactants, which are co-surfactants, contain at least 2 or more alkylene oxide groups.
  • nonionic surfactants with EO less than 2 are considered to be surfactants as described in the paragraphs above.
  • alkoxylated nonionic surfactants include, but are not limited to, condensation products of linear or branched fatty chain alcohols, acids, phenols, esters, glycerides, amines and amides.
  • the preferred co-surfactants are ethoxylated nonionic surfactants with ethylene oxide (EO) groups in the range of 2 -12 and most preferably from 2 to 6.
  • Especially preferred nonionic surfactants are ethoxylated fatty amides with the (EO) groups in the range of 2-12, most preferably 2 to 6.
  • the present composition comprises co-surfactants in the range of 0 to 10wt%, more preferably 2 to 8 wt% and most preferably 3 to 7 wt%.
  • the cleansing composition of the present invention may comprise an electrolyte.
  • the electrolyte for the purposes of the present invention may include inorganic salts (e.g., sodium chloride, potassium chloride) as well as organic salts (e.g., sodium citrate).
  • inorganic salts e.g., sodium chloride, potassium chloride
  • organic salts e.g., sodium citrate
  • other salts include phosphates, sulfates and other halogen ion salts.
  • the counter ions of such salts can be sodium or other monovalent cations as well as di- and trivalent cations.
  • the cleansing composition of the present invention is substantially free of electrolytes and more preferably ‘essentially free’ of electrolytes, and most preferably ‘completely free’ of electrolytes.
  • the term ‘substantially free’ means that less than 1 wt% of the of electrolytes in the composition.
  • ‘essentially free’ means that less than 0.01 wt% and ‘completely free’ means less than 2.0x1 O' 6 wt% of the of electrolytes in the cleansing composition of the present invention. It is most preferred that the composition comprises electrolyte less than 0.5 wt%.
  • the cleansing composition of the present invention comprises a chelating agent. It is preferred that the chelating agent in the cleansing composition is present in the range of 0.1 to 3 wt% by weight of the cleansing composition, more preferably in the range of 0.2 to 2.5 wt% by weight of the cleansing composition, and most preferably in the range of 0.2 to 1 .5 wt% by weight of the cleansing composition.
  • the chelating agent in the cleansing composition is present at least 0.1 wt%, more preferably at least 0.8 wt%, and most preferably at least 1 wt% by weight of the cleansing composition. It is preferred that the chelating agent in the cleansing composition is present at most 3 wt%, more preferably at most 2.5 wt%, further preferably at most 2 wt% and most preferably at most 1 .5 wt% by weight of the cleansing composition.
  • the preferred chelating agents are as follows (names followed by their abbreviation in parenthesis):
  • Ethylene Diamine Tetra Acetic acid EDTA
  • Disodium ethylenediaminetetraacetic acid Diethylene Triamine Penta Acetic acid (DTPA), Ethane-1 -hydroxy-1 ,1 -diphosphonate (EHDP), Ethylene Diamine-N,N'-Disuccinate (EDDS), Nitrilo Triacetic Acid (NTA), Sodium Imino Disuccinate (IDS), Ethylene Glycol-bis-(2-aminoethyl)-N,N,N', N'-Tetra Acetic acid (EGTA), Methyl Glycine Diacetic Acid (MGDA), N-(2-hydroxyethyl) Ethylene Diamine N,N',N'- Thacetic acid) (HEDTA), Ethylene Diamine Tetra Methylene Phosphonic acid (EDTMP), Diethylene Thamine-Penta-Methylene Phosphonic acid (DTPMP), Glutamic acid-N,N-Diacetic
  • Trisodium Ethylene Diamine Disuccinate Trisodium Ethylene Diamine Disuccinate, Tetra-sodium- Imino disuccinate, Glutamic acid-N,N diacetic acid tetra sodium salt, 2-hydroxyethyl iminodiacetic acid, Sodium salt (disodium ethanol diglycinate), Tetrasodium 3-hydroxy-2,2 imino disuccinate, Trisodium methylglycine diacetic acid, L- Aspartate-N,N-diacetic acid tetrasodium salt.
  • the more preferred chelating agents are salt of Ethylene Diamine Tetra Acetic acid (EDTA) and salt of Diethylene Thamine Penta Acetic acid (DTPA).
  • Preferred salts of EDTA are disodium Ethylene Diamine Tetra Acetic acid and tetrasodium Ethylene Diamine Tetra Acetic acid.
  • Preferred salt of DTPA is the pentasodium Diethylene Thamine Penta Acetic acid.
  • the chelating agent suitable for the compositions of the present invention are selected from the group of Ethylene Diamine Tetra Acetic acid (EDTA), or Diethylene Triamine Penta Acetic acid (DTPA), their derivatives and combinations, mixtures thereof.
  • EDTA Ethylene Diamine Tetra Acetic acid
  • DTPA Diethylene Triamine Penta Acetic acid
  • the EDTA derivative is selected from tetrasodium EDTA, trisodium EDTA, disodium EDTA, and combinations thereof.
  • the DTPA derivative is selected from tetrasodium DTPA, trisodium DTPA, disodium DTPA, and combinations thereof.
  • composition of the cleansing composition of the present invention comprises a preservative. It is preferred that the preservative in the cleansing composition is present in the range of 0.1 to 3wt% by weight of the cleansing composition, more preferably in the range of 0.1 to 2wt-by weight of the cleansing composition, and most preferably in the range of 0.1 to 1 w% by weight of the cleansing composition.
  • compositions of the present inventions are not limited to, chlorite components, sorbic acid components and mixtures thereof.
  • Suitable preservatives include but not limited to commonly used in cosmetics, such as dibromdicyanobutane (2-bromo-2-bromomethylglutarodinitrile), phenoxyethanol, 3-lod-2- propinylbutylcarbamate, 2-bromo-2-nitro-propane-1 , 3-diol, imidazolidinyl hamstoff, 5-chloro- 2-methyl-4-isothiazolin-3-one, 2-chloroacetamide, benzalkonium chloride, benzyl alcohol.
  • cosmetics such as dibromdicyanobutane (2-bromo-2-bromomethylglutarodinitrile), phenoxyethanol, 3-lod-2- propinylbutylcarbamate, 2-bromo-2-nitro-propane-1 , 3-diol, imidazolidinyl hamstoff, 5-chloro- 2-methyl-4-isothiazolin-3-one, 2-chloroacetamide
  • the preservative is selected from Methylisothiazolinone, Methylchloroisothiazolinone, 3-iodo-2-propynl butyl carbamate (IPBC), DMDM hydantoin and benzyl alcohol and) or mixtures or combinations thereof.
  • the cleansing composition of the present invention is substantially free of free fatty acids and more preferably ‘essentially free’ of free fatty acids, and most preferably ‘completely free’ of free fatty acids.
  • substantially free means that less than 1 wt% of the of free fatty acids in the composition.
  • essentially free means that less than 0.01 wt% and ‘completely free’ means less than 2.0x1 O' 6 wt% of the of free fatty acids in the cleansing composition of the present invention.
  • composition of the present invention have free fatty acids less than 1 wt% by weight of the cleansing composition and more preferably less than 0.1 wt% of the weight of cleansing composition.
  • the cleansing composition of the present invention comprises water in the range of 60 to 90 wt% water, more preferably 65 to 85 wt% and and most preferably from 68 to 80 wt% by weight of the composition.
  • the composition of the present invention is primarily an aqueous composition. Thickening Polymer
  • the composition of the present invention comprises water soluble/dispersible polymers.
  • These polymers can be cationic, anionic, amphoteric or nonionic types with molecular weights higher than 100,000 Dalton. They are known to increase the viscosity and stability of liquid cleanser compositions, to enhance in-use and after-use skin sensory feels, and to enhance lather creaminess and lather stability.
  • Amount of the polymers, when present, may range from 0.1 to 10% by weight of the composition. It is preferred that the thickening polymers are present in the range of 0.01 to 2 wt% in the present composition.
  • water soluble/or dispersible polymers and rheology modifiers include the carbohydrate gums such as cellulose gum, microcrystalline cellulose, cellulose gel, hydroxyethyl cellulose, hydroxypropyl cellulose, sodium carboxymethylcellulose, methyl cellulose, ethyl cellulose, guar gum, gum karaya, gum tragacanth, gum arabic, gum acacia, gum agar, xanthan gum and mixtures thereof; modified and non-modified starch granules and pregelatinized cold water soluble starch; emulsion polymers such as Aculyn® 28, cationic polymer such as modified polysaccharides including cationic guar such as Jaguar® C13S, Jaguar® C17, or Jaguar® C16; cationic modified cellulose such as LICARE® Polymer JR 30 or JR 40; N-Hance® 3000, N-Hance® 3196, N-Hance® GPX 215 or N-Hance® GPX
  • cationic cellulose derivatives are cationic starch derivatives, and cationic guar gum derivatives.
  • the pH of the compositions of the present invention ranges from 9.0 to 11 more preferably 9.5 to 11 .
  • the pH of a solution is expressed as the negative logarithm of the hydrogen ion activity which is related to a millivolt potential of the pH indicating electrode.
  • This electrode is calibrated with standard buffer mixtures whose pH values lie on either side (acidic & basic) of that of the solution which is being measured.
  • About 1 gm of the cleansing composition is weighed in a beaker & made up to 100 grams by adding distilled water. 25°C and pH is measured.
  • emollient is defined as a substance which softens or improves the elasticity, appearance, and youthfulness of the skin (stratum corneum) by either increasing its water content, adding, or replacing lipids and other skin nutrients; or both, and keeps it soft by retarding the decrease of its water content.
  • Moisturizers that also are Humectants such as polyhydric alcohols, e.g. glycerin and propylene glycol, and the like; and polyols such as the polyethylene glycols such as Polyox WSR N-60K (PEG-45M) and the like are used in a preferred embodiment of the invention.
  • Humectants are preferably used at a minimum of 0.5, 2.5 or 5 % by wt. and a maximum of 15, 20 or 25% by wt.
  • Hydrophobic emollients are used in a preferred embodiment of the invention. Preferred are hydrophobic emollient(s) with weight average particle sizes below either 1000 or 500 microns in diameter and are defined herein as “finely dispersed oils”. These emollients are preferably used at a minimum of 0.5, 2.5 or 5 % by wt. and a maximum of 15, 20 or 25% by wt.
  • Suitable hydrophobic emollients include but are not limited to the following:
  • silicone oils and modifications thereof such as linear and cyclic polydimethylsiloxanes; amino, alkyl, alkylaryl, and aryl silicone oils;
  • fats and oils including natural fats and oils (triglycerides) such as jojoba, soybean, sunflower, rice bran, avocado, almond, olive, sesame, persic, castor, coconut, mink oils; cacao fat; beef tallow, lard; hardened oils obtained by hydrogenating the aforementioned oils; and synthetic mono, di and triglycerides such as myristic acid glyceride and 2- ethylhexanoic acid glyceride;
  • natural fats and oils triglycerides
  • jojoba such as jojoba, soybean, sunflower, rice bran, avocado, almond, olive, sesame, persic, castor, coconut, mink oils; cacao fat; beef tallow, lard; hardened oils obtained by hydrogenating the aforementioned oils
  • synthetic mono, di and triglycerides such as myristic acid glyceride and 2- ethylhexanoic acid glyceride
  • waxes such as carnauba, spermaceti, beeswax, lanolin, and derivatives thereof;
  • hydrocarbons such as petrolatum, polybutene, liquid paraffins, microcrystalline wax, ceresin, squalene, pristan and mineral oil;
  • esters such as cetyl octanoate, myristyl lactate, cetyl lactate, isopropyl myristate, myristyl myristate, isopropyl palmitate, isopropyl adipate, butyl stearate, decyl oleate, cholesterol isostearate, glycerol monostearate, glycerol distearate, glycerol tristearate, alkyl lactate, alkyl citrate and alkyl tartrate;
  • essential oils and extracts thereof such as mentha, jasmine, camphor, white cedar, bitter orange peel, ryu, turpentine, cinnamon, bergamot, citrus unshiu, calamus, pine, lavender, bay, clove, hiba, eucalyptus, lemon, starflower, thyme, peppermint, rose, sage, sesame, ginger, basil, juniper, lemon grass, rosemary, rosewood, avocado, grape, grapeseed, myrrh, cucumber, watercress, calendula, elder flower, geranium, linden blossom, amaranth, seaweed, ginko, ginseng, carrot, guarana, tea tree, jojoba, comfrey, oatmeal, cocoa, neroli, vanilla, green tea, penny royal, aloe vera, menthol, cineole, eugenol, citral, Citronelle, borneol, linalool, geraniol,
  • preferred embodiments of the cleansing compositions may also include other optional and preferred ingredients for their known benefits.
  • the type and content will largely depend on the nature and type of cleansing composition as well as general principles of formulation science.
  • compositions include one or more skin benefit agents.
  • skin benefit agent is defined as a substance which softens or improves the elasticity, appearance, and youthfulness of the skin (stratum corneum) by either increasing its water content, adding, or replacing lipids and other skin nutrients; or both, and keeps it soft by retarding the decrease of its water content.
  • suitable skin benefit agents include emollients, including, for example, hydrophobic emollients, hydrophilic emollients, or blends thereof.
  • Water-soluble skin benefit agents may optionally be formulated into the liquid compositions of the invention. A variety of water-soluble skin benefit agents can be used and the level can be from 0 to 50% but preferably from 1 to 30% by weight of the composition. These materials include, but are not limited to, polyhydroxy alcohols.
  • Preferred water soluble skin benefit agents are glycerin, sorbitol and polyethylene glycol.
  • Water-insoluble skin benefit agents may also be formulated into the compositions as conditioners and moisturizers.
  • conditioners and moisturizers examples include silicone oils; hydrocarbons such as liquid paraffins, petrolatum, microcrystalline wax, and mineral oil; and vegetable triglycerides such as sunflower seed and cottonseed oils.
  • Preservatives can also be added into the compositions to protect against the growth of potentially harmful microorganisms. Suitable traditional preservatives for compositions of this invention are alkyl esters of para-hydroxybenzoic acid. Other preservatives which have more recently come into use include hydantoin derivatives, propionate salts, and a variety of quaternary ammonium compounds.
  • preservatives are phenoxyethanol, methyl paraben, propyl paraben, imidazolidinyl urea, sodium dehydroacetate and benzyl alcohol.
  • the preservatives should be selected having regard for the use of the composition and possible incompatibility between the preservatives and other ingredients.
  • Preservatives are preferably employed in amounts ranging from 0.01% to 2% by weight of the composition.
  • compositions may include: antimicrobials; scrub and exfoliating particles such as polyethylene and silica or alumina; cooling agents such as menthol; skin calming agents such as aloe vera; and colorants.
  • shower gel or Body wash may contain particles that are greater than 50 pm in average diameter that help remove dry skin.
  • the degree of exfoliation depends on the size and morphology of the particles. Large and rough particles are usually very harsh and irritating. Very small particles may not serve as effective exfoliants.
  • exfoliants used in the art include natural minerals such as silica, talc, calcite, pumice, tricalcium phosphate; seeds such as rice, apricot seeds, etc; crushed shells such as almond and walnut shells; oatmeal; polymers such as polyethylene and polypropylene beads, flower petals and leaves; microcrystalline wax beads; jojoba ester beads, and the like.
  • exfoliants come in a variety of particle sizes and morphology ranging from micron sized to a few mm. They also have a range of hardness. Some examples are talc, calcite, pumice, walnut shells, dolomite and polyethylene.
  • active agents other than skin conditioning agents defined above may be added to the composition.
  • active ingredients may be advantageously selected from bactericides, vitamins, anti-acne actives; anti-wrinkle, anti-skin atrophy and skin repair actives; skin barrier repair actives; non-steroidal cosmetic soothing actives; artificial tanning agents and accelerators; skin lightening actives; sunscreen actives; sebum stimulators; sebum inhibitors; anti-oxidants; protease inhibitors; skin tightening agents; anti-itch ingredients; hair growth inhibitors; 5-alpha reductase inhibitors; desquamating enzyme enhancers; anti-glycation agents; or mixtures thereof; and the like.
  • active agents may be selected from water-soluble active agents, oil soluble active agents, pharmaceutically acceptable salts and mixtures thereof.
  • active agent means personal care actives which can be used to deliver a benefit to the skin and/or hair and which generally are not used to confer a skin conditioning benefit, such are delivered by emollients as defined above.
  • safe and effective amount means an amount of active agent high enough to modify the condition to be treated or to deliver the desired skin care benefit, but low enough to avoid serious side effects.
  • fit as used herein, means the therapeutic, prophylactic, and/or chronic benefits associated with treating a particular condition with one or more of the active agents described herein. What is a safe and effective amount of the active agent(s) will vary with the specific active agent, the ability of the active to penetrate through the skin, the age, health condition, and skin condition of the user, and other like factors.
  • active agent ingredients are useful for the compositions of the present inventions and include those selected from anti-acne actives, anti-wrinkle and anti-skin atrophy actives, skin barrier repair aids, cosmetic soothing aids, topical anesthetics, artificial tanning agents and accelerators, skin lightening actives, antimicrobial and antifungal actives, sunscreen actives, sebum stimulators, sebum inhibitors, anti-glycation actives and mixtures thereof and the like.
  • Anti-acne actives can be effective in treating acne vulgaris, a chronic disorder of the pilosebaceous follicles.
  • useful anti-acne actives include the keratolytics such as salicylic acid (o-hydroxybenzoic acid), derivatives of salicylic acid such as 5-octanoyl salicylic acid and 4 methoxysalicylic acid, and resorcinol; retinoids such as retinoic acid and its derivatives (e.g., cis and trans); sulfur-containing D and L amino acids and their derivatives and salts, particularly their N-acetyl derivatives, mixtures thereof and the like.
  • Skin barrier repair actives are those skin care actives which can help repair and replenish the natural moisture barrier function of the epidermis.
  • Non limiting examples of skin barrier repair actives include lipids such as cholesterol, ceramides, sucrose esters and pseudo-ceramides as described in European Patent Specification No. 556,957; ascorbic acid; biotin; biotin esters; phospholipids, mixtures thereof, and the like.
  • Artificial tanning actives can help in simulating a natural sun tan by increasing melanin in the skin or by producing the appearance of increased melanin in the skin.
  • Non limiting examples of artificial tanning agents and accelerators include dihydroxyacetaone; tyrosine; tyrosine esters such as ethyl tyrosinate and glucose tyrosinate; mixtures thereof, and the like.
  • Skin lightening actives can actually decrease the amount of melanin in the skin or provide such an effect by other mechanisms.
  • Non limiting examples of skin lightening actives useful herein include aloe extract, alpha-glyceryl-L-ascorbic acid, aminotyrosine, ammonium lactate, glycolic acid, hydroquinone, 4 hydroxyanisole, mixtures thereof, and the like.
  • sunscreen actives are those selected from the group consisting of octyl methoxyl cinnamate (Parsol MCX) and butyl methoxy benzoylmethane (Parsol 1789), 2- ethylhexyl p-methoxycinnamate, 2-ethylhexyl N,N-dimethyl-p-aminobenzoate, p- aminobenzoic acid, 2-phenylbenzimidazole-5sulfonic acid, oxybenzone, mixtures thereof, and the like.
  • sunscreens which are useful in the compositions of the present invention are those selected from the group consisting of octyl methoxyl cinnamate (Parsol MCX) and butyl methoxy benzoylmethane (Parsol 1789), 2- ethylhexyl p-methoxycinnamate, 2-ethylhexyl N,N-dimethyl-p-aminobenzoate, p
  • protease inhibitors can be divided into two general classes: the proteinases and the peptidases. Proteinases act on specific interior peptide bonds of proteins and peptidases act on peptide bonds adjacent to a free amino or carboxyl group on the end of a protein and thus cleave the protein from the outside.
  • the protease inhibitors suitable for use in the inventive personal toilet bar compositions include, but are not limited to, proteinases such as serine proteases, metalloproteases, cysteine proteases, and aspartyl protease, and peptidases, such as carboxypepidases, dipeptidases and aminopepidases, mixtures thereof and the like.
  • skin tightening agents include monomers which can bind a polymer to the skin such as (meth)acrylic acid and a hydrophobic monomer comprised of long chain alkyl (meth)acrylates, mixtures thereof, and the like.
  • Active ingredients in the inventive personal toilet bar compositions may also include anti-itch ingredients.
  • Suitable examples of anti-itch ingredients which are useful in the compositions of the present invention include hydrocortisone, methdilizine and trimeprazine, mixtures thereof, and the like.
  • Non limiting examples of hair growth inhibitors which are useful in the inventive personal toilet bar compositions include 17 beta estradiol, anti angiogenic steroids, curcuma extract, cycloxygenase inhibitors, evening primrose oil, linoleic acid and the like.
  • Suitable 5-alpha reductase inhibitors such as ethynylestradiol and, genistine mixtures thereof, and the like.
  • Advantageously cationic skin feel agent(s) or polymer(s) are used from about 0.01 , 0.1 or 0.2% by wt. to about 1 , 1 .5 or 2.0% by wt.
  • Cationic cellulose is available from Amerchol Corp. (Edison, N.J., USA) in their Polymer JR® and LR® series of polymers, as salts of hydroxyethyl cellulose reacted with trimethyl ammonium substituted epoxide, referred to in the industry (CTFA) as Polyquaternium® 10.
  • CTFA trimethyl ammonium substituted epoxide
  • Another type of cationic cellulose includes the polymeric quaternary ammonium salts of hydroxyethyl cellulose reacted with lauryl dimethyl ammonium-substituted epoxide, referred to in the industry (CTFA) as Polyquaternium® 24. These materials are available from Amerchol Corp. (Edison, N.J., USA) under the tradename Polymer LM-200®, and quaternary ammonium compounds such as alkyldimethylammonium halogenides.
  • a particularly suitable type of cationic polysaccharide polymer that can be used is a cationic guar gum derivative, such as guar hydroxypropyltrimonium chloride (Commercially available from Rhone-Poulenc in their JAGUAR® trademark series).
  • Examples are JAGUAR® C13S, which has a low degree of substitution of the cationic groups and high viscosity, JAGUAR® C15, having a moderate degree of substitution and a low viscosity, JAGUAR® C17 (high degree of substitution, high viscosity), JAGUAR® C16, which is a hydroxypropylated cationic guar derivative containing a low level of substituent groups as well as cationic quaternary ammonium groups, and JAGUAR® 162 which is a high transparency, medium viscosity guar having a low degree of substitution.
  • Particularly preferred cationic polymers are JAGUAR® C13S, JAGUAR® C15, JAGUAR® C17 and JAGUAR® C16 and JAGUAR® C162, especially JAGUAR® C13S.
  • Other cationic skin feel agents known in the art may be used provided that they are compatible with the inventive formulation.
  • amido quaternary ammonium compounds such as quaternary ammonium propionate and lactate salts, and quaternary ammonium hydrolyzates of silk or wheat protein, and the like. Many of these compounds can be obtained as the Mackine® Amido Functional Amines, Mackalene® Amido functional Tertiary Amine Salts, and Mackpro® cationic protein hydrolysates from the McIntyre Group Ltd. (University Park, III.).
  • the average molecular weight of the hydrolyzed protein is preferably about 2500.
  • 90% of the hydrolyzed protein is between a molecular weight of about 1500 to about 3500.
  • MACKPRO® WWP i.e. wheat germ amido dimethylamine hydrolyzed wheat protein
  • the present invention also provides a use of the personal cleansing composition according to the first aspect in manufacture of a transparent personal cleansing composition.
  • the present invention provides use of polyol comprising propylene glycol in manufacture of transparent cleansing compositions that are transparent at temperatures of up to 4 deg C.
  • the present invention also provides a packaged personal care/personal wash product comprising: a container or bottle comprising a label or advertising intended for sale or distribution to consumers; and a soap composition according to the first aspect of this invention.
  • the cleansing composition of the present invention is prepared using the process comprising steps of: a. dispersing thickening polymer in water to obtain aqueous mixture, b. adding fatty acid to the aqueous mixture and neutralising with alkali for obtain a liquid soap; c. adding non-soap surfactants to the liquid soap of step ‘b’. wherein chelating agents and polyol is added at step ‘a’ or step ‘b’.
  • the soap to polyol weight ratio in the cleansing composition ranges from 1.1 :1 to 3:1.
  • the polyhydric glycols are selected from the group of C3 to C6 hydric glycol and mixtures thereof. It is preferred that in the method of the present invention that the polyhydric glycol comprises 0.5 to 10wt% of propylene glycol by weight of the cleansing composition.
  • the polyhydric glycol comprises 1 to 10 wt% glycerin by weight of the cleansing composition.
  • the composition has a transmittance of 90-99% at 650 nm.
  • the composition comprises 0.1 to 3 wt% chelating agent.
  • the composition comprises 0.01 to 2 wt% of a thickening polymer.
  • the thickening polymer is selected from the group of cellulose-based polymers, gum-based polymers, acrylate polymers and mixtures and combinations thereof .
  • non-soap surfactant is selected from the group of anionic surfactant, amphoteric surfactant, zwitterionic surfactant or non-ionic surfactant.
  • the composition comprises electrolyte less than 0.5 wt%.
  • compositions P8 - P10 made according to the present invention were transparent even at the completion of 19 weeks, whereas the compositions P1 to P7 were either opaque or had crystal formation. It was seen that even despite having high soap concentration of 18 wt% in the composition, the compositions of P10 were transparent and stable at low temperatures. It is clearly evident from the data presented that when the total polyol was less than 7wt% by weight of the composition of the present invention, as in P7 it is 4wt% and in P6 it is 6wt%, the resultant composition is opaque within 24 hours.
  • the resultant composition is opaque within 24 hours. Therefore, it can be concluded that when the ingredients or their respective concentration is varied such that it is out of the scope of the first aspect of the present invention, the composition is not stable and transparent at 4°C.

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Abstract

La présente invention concerne une composition d'hygiène personnelle liquide transparente comprenant de 5 à 30 % en poids de savon ; de 0,5 à 10 % en poids de tensioactif non-savon ; de 1 à 20 % en poids de polyol comprenant des glycols polyhydriques ; de 60 à 90 % en poids d'eau ; et la teneur en acides gras libres étant inférieure à 0,1 % en poids ; et la composition comprenant du savon d'acides gras à longue chaîne (C14 à C30) et du savon d'acides gras à chaîne courte (C8 à C12) dans un rapport de poids compris entre 1:1,5 et 1:10.
PCT/EP2024/081490 2023-11-09 2024-11-07 Composition d'hygiène personnelle liquide transparente Pending WO2025099148A1 (fr)

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Citations (11)

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Publication number Priority date Publication date Assignee Title
US4310432A (en) 1973-03-15 1982-01-12 Lever Brothers Company Liquid soap composition
US5009814A (en) 1987-04-08 1991-04-23 Huls Aktiengesellschaft Use of n-polyhydroxyalkyl fatty acid amides as thickening agents for liquid aqueous surfactant systems
EP0556957A1 (fr) 1992-01-23 1993-08-25 Unilever Plc Composition cosmétique pour le traitement de dessèchement cutané
US5389279A (en) 1991-12-31 1995-02-14 Lever Brothers Company, Division Of Conopco, Inc. Compositions comprising nonionic glycolipid surfactants
US5393466A (en) 1991-11-25 1995-02-28 Lever Brothers Company, Division Of Conopco, Inc. Fatty acid esters of polyalkoxylated isethionic acid
JP2009292752A (ja) * 2008-06-04 2009-12-17 Kracie Home Products Ltd シャンプー組成物
JP2016180066A (ja) * 2015-03-24 2016-10-13 株式会社シャンソン化粧品 ゲル状の組成物
CN108066164A (zh) * 2017-12-28 2018-05-25 上海家化联合股份有限公司 一种透明的复合型清洁组合物及其制备方法
WO2019097950A1 (fr) * 2017-11-16 2019-05-23 ライオン株式会社 Composition nettoyante liquide pour la peau
CN111454796A (zh) * 2020-04-03 2020-07-28 广州立白企业集团有限公司 一种透明皂基抑菌清洁组合物
JP2021187744A (ja) * 2020-05-26 2021-12-13 株式会社エス・ピー・エイチ 透明な液状脂肪酸石鹸組成物の製造方法

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4310432A (en) 1973-03-15 1982-01-12 Lever Brothers Company Liquid soap composition
US5009814A (en) 1987-04-08 1991-04-23 Huls Aktiengesellschaft Use of n-polyhydroxyalkyl fatty acid amides as thickening agents for liquid aqueous surfactant systems
US5393466A (en) 1991-11-25 1995-02-28 Lever Brothers Company, Division Of Conopco, Inc. Fatty acid esters of polyalkoxylated isethionic acid
US5389279A (en) 1991-12-31 1995-02-14 Lever Brothers Company, Division Of Conopco, Inc. Compositions comprising nonionic glycolipid surfactants
EP0556957A1 (fr) 1992-01-23 1993-08-25 Unilever Plc Composition cosmétique pour le traitement de dessèchement cutané
JP2009292752A (ja) * 2008-06-04 2009-12-17 Kracie Home Products Ltd シャンプー組成物
JP2016180066A (ja) * 2015-03-24 2016-10-13 株式会社シャンソン化粧品 ゲル状の組成物
WO2019097950A1 (fr) * 2017-11-16 2019-05-23 ライオン株式会社 Composition nettoyante liquide pour la peau
CN108066164A (zh) * 2017-12-28 2018-05-25 上海家化联合股份有限公司 一种透明的复合型清洁组合物及其制备方法
CN111454796A (zh) * 2020-04-03 2020-07-28 广州立白企业集团有限公司 一种透明皂基抑菌清洁组合物
JP2021187744A (ja) * 2020-05-26 2021-12-13 株式会社エス・ピー・エイチ 透明な液状脂肪酸石鹸組成物の製造方法

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