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WO2024142847A1 - Composition cosmétique - Google Patents

Composition cosmétique Download PDF

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Publication number
WO2024142847A1
WO2024142847A1 PCT/JP2023/043986 JP2023043986W WO2024142847A1 WO 2024142847 A1 WO2024142847 A1 WO 2024142847A1 JP 2023043986 W JP2023043986 W JP 2023043986W WO 2024142847 A1 WO2024142847 A1 WO 2024142847A1
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WO
WIPO (PCT)
Prior art keywords
mass
composition
less
polymer
formula
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.)
Ceased
Application number
PCT/JP2023/043986
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English (en)
Japanese (ja)
Inventor
圭太 西田
ちひろ 森▲脇▼
将英 佐野
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.)
Shiseido Co Ltd
Original Assignee
Shiseido Co Ltd
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
Priority claimed from JP2022212623A external-priority patent/JP2024095369A/ja
Priority claimed from JP2022212707A external-priority patent/JP2024095426A/ja
Priority claimed from JP2022212671A external-priority patent/JP2024095398A/ja
Application filed by Shiseido Co Ltd filed Critical Shiseido Co Ltd
Publication of WO2024142847A1 publication Critical patent/WO2024142847A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
    • A61K8/04—Dispersions; Emulsions
    • A61K8/06—Emulsions
    • 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
    • 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
    • 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
    • A61K8/40—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing nitrogen
    • A61K8/45—Derivatives containing from 2 to 10 oxyalkylene groups
    • 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
    • A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
    • A61K8/84—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions otherwise than those involving only carbon-carbon unsaturated bonds
    • A61K8/86—Polyethers
    • 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
    • A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
    • A61K8/84—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions otherwise than those involving only carbon-carbon unsaturated bonds
    • A61K8/89—Polysiloxanes
    • A61K8/891—Polysiloxanes saturated, e.g. dimethicone, phenyl trimethicone, C24-C28 methicone or stearyl dimethicone
    • A61K8/894—Polysiloxanes saturated, e.g. dimethicone, phenyl trimethicone, C24-C28 methicone or stearyl dimethicone modified by a polyoxyalkylene group, e.g. cetyl dimethicone copolyol
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q1/00—Make-up preparations; Body powders; Preparations for removing make-up
    • 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
    • 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
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
    • C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
    • C08G65/04—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers only
    • C08G65/22—Cyclic ethers having at least one atom other than carbon and hydrogen outside the ring

Definitions

  • the third invention relates to an oil-in-water emulsion cosmetic composition.
  • Patent Document 1 discloses a translucent or transparent cosmetic composition that has excellent long-term stability and stability against vibration and shaking, and is stably blended with oil and oil-soluble drugs that have moisturizing and skin-improving effects on the skin. More specifically, the cosmetic composition of Patent Document 1 is a translucent or transparent cosmetic composition that contains an oil that contains branched saturated fatty acids that are liquid at room temperature, and a hydrophilic surfactant.
  • Patent Document 3 discloses a lotion that contains (a) 0.00001-1.0% by mass of ceramides, (b) 0.1-1.0% by mass of a nonionic surfactant, (c) 0.1-5.0% by mass of hexanediol or pentanediol, and (d) 50.0% by mass or more of water, and that (a) stably solubilizes the ceramides and is transparent.
  • amphiphilic substance that forms the vesicles is a silicone surfactant, it is called a "silicone nanodisc.”
  • An oil-in-water emulsion cosmetic composition that contains a surfactant capable of forming such nanodiscs provides a fresh, moist feel after application.
  • the first invention aims to improve the above situation, and its purpose is to provide a novel cosmetic composition that has improved compatibility with the skin during use and improved bouncy feel after use, compared to conventional cosmetic compositions in which oil is micronized, without the need to particularly consider the amount or type of oil.
  • the second invention aims to improve the above situation, and its purpose is to provide a new aqueous cosmetic composition that maintains transparency while improving the bouncy feel.
  • the third invention aims to improve the above situation, and its purpose is to provide a novel oil-in-water emulsion composition that has improved spreadability and freshness during application, and improved moisturizing effect after application, compared to conventional compositions.
  • a cosmetic composition comprising:
  • the present invention relates to an oil composition comprising an oil component containing a branched saturated fatty acid that is liquid at room temperature, a hydrophilic surfactant, a polymer having a structure represented by the following formula (1), and water,
  • R 1 , R 2 and R 3 each independently represent a hydrogen atom or an alkyl group having 1 to 4 carbon atoms
  • A represents an alkylene group having 2 to 4 carbon atoms
  • m and n each independently represent an integer of 1.0 to 50.
  • the number average molecular weight of the polymer is 10,000 or less, and the IOB value of the polymer is 0.4 to 1.8.
  • A is represented by the following formula (2):
  • R 4 is an alkyl group having 1 or 2 carbon atoms.
  • ⁇ Aspect 1-3> The composition according to any one of aspects 1-1 to 1-2, wherein the polymer is a random copolymer.
  • ⁇ Aspect 1-4> The composition according to any one of Aspects 1-1 to 1-3, wherein, in formula (1), m is 2 or more, and at least a part of R 1 is a methyl group.
  • ⁇ Aspect 2-6> The composition of any one of aspects 2-1 to 2-5, which is transparent.
  • ⁇ Aspect 2-7> Aspects 2-1 to 2-6, wherein the thickener content is 0.01% by mass or less.
  • ⁇ Aspect 2-8> The composition according to any one of aspects 2-1 to 2-7, wherein the oil content is 0.5% by mass or less.
  • ⁇ Aspect 2-9> The composition according to any one of Aspects 2-1 to 2-8, which is used as a lotion.
  • An oil-in-water emulsion cosmetic composition comprising (A) an aqueous phase, (B) an oil phase, and (C) a polyoxyalkylene-modified silicone, (A) The total amount of monohydric alcohol and dihydric glycol blended in the aqueous phase is 1 to 35% by mass, with the monohydric alcohol alone being in the range of 1 to 15% by mass and the dihydric glycol alone being in the range of 1 to 20% by mass; (B) oil phase 1 to 50% by mass, (C) is 0.2 to 5% by mass based on the entire composition, and further comprising, as the component (P), a polymer having a structure represented by the following formula (1):
  • R 1 , R 2 and R 3 each independently represent a hydrogen atom or an alkyl group having 1 to 4 carbon atoms
  • A represents an alkylene group having 2 to 4 carbon atoms
  • m and n each independently represent an integer of 1.0 to 50.
  • ionic surfactant comprises one or more selected from sulfosuccinic acid diester salts, alkyl allyl sulfonate salts, alkyl ether sulfonate salts, sulfosuccinic acid ester salts, acyl methyl taurine salts, acyltaurine salts, and the like.
  • Aspect 3-12 The composition according to any one of aspects 3-1 to 3-11, wherein lamellar nanodisks are adsorbed to the oil-water interface.
  • the third invention it is possible to provide a novel oil-in-water emulsion composition which has improved spreadability and freshness during application and improved moisturizing effect after application, as compared with conventional compositions.
  • the cosmetic composition of the first invention (hereinafter, also simply referred to as the "composition of the first invention”) comprises:
  • the present invention relates to an oil composition comprising an oil component containing a branched saturated fatty acid that is liquid at room temperature, a hydrophilic surfactant, a polymer having a structure represented by the following formula (1), and water,
  • R 1 , R 2 and R 3 each independently represent a hydrogen atom or an alkyl group having 1 to 4 carbon atoms
  • A represents an alkylene group having 2 to 4 carbon atoms
  • m and n each independently represent an integer from 1.0 to 50.
  • the number average molecular weight of the polymer is 10,000 or less, and the IOB value of the polymer is 0.4 to 1.8. It is a composition.
  • the first composition of the present invention uses an oil containing branched saturated fatty acid that is liquid at room temperature, a hydrophilic surfactant, and the polymer of the first invention represented by formula (1) in combination, which not only makes it possible to microparticulate the oil, but also improves skin compatibility during use and the soft, supple feel after use compared to conventional compositions.
  • the first polymer of the present invention which has a specific structure, is amphiphilic and tends to dissolve in an aqueous phase, but also has hydrophobic properties, so it is believed that the first composition of the present invention containing this polymer can promote compatibility between the microparticulated oil and the skin when it comes into contact with lipophilic skin, and can also improve the soft, supple feel after use.
  • composition of the first invention contains an oil.
  • the content of the oil is not particularly limited, and may be, for example, 0.01% by mass or more, 0.05% by mass or more, 0.1% by mass or more, 0.2% by mass or more, 0.3% by mass or more, 0.4% by mass or more, or 0.5% by mass or more, or 20% by mass or less, 18% by mass or less, 16% by mass or less, 14% by mass or less, 12% by mass or less, 10% by mass or less, 8.0% by mass or less, 6.0% by mass or less, 4.0% by mass or less, 2.0% by mass or less, 1.0% by mass or less, 0.9% by mass or less, 0.8% by mass or less, 0.7% by mass or less, 0.6% by mass or less, or 0.5% by mass or less, based on the entire composition.
  • the oil content is preferably 20% by mass or less.
  • examples of branched saturated fatty acids that are liquid at room temperature include 2-methylundecanoic acid, 2-methyldocosanoic acid, 3-methyldocosanoic acid, 2,2-dimethyldodecanoic acid, 3-methyltetradecanoic acid, 4-methyltetradecanoic acid, 5-methyltetradecanoic acid, 6-methyltetradecanoic acid, 7-methyltetradecanoic acid, 8-methyltetradecanoic acid, 9-methyltetradecanoic acid, 10-methyltetradecanoic acid, 11-methyltetradecanoic acid, 12-methyl
  • Examples of branched saturated fatty acids that are liquid at room temperature include, but are not limited to, tetradecanoic acid, 13-methyltetradecanoic acid, 2-ethyltetradecanoic acid, 2-propyltridecanoic acid, 2-butyldodecanoic acid, 2-pentylundecanoic acid, 2-methylundecanoic
  • the branched saturated fatty acid that is liquid at room temperature contains, in particular, isostearic acid.
  • the oil may further contain other oils in addition to the branched saturated fatty acids that are liquid at room temperature described above.
  • oils are not particularly limited as long as they can be incorporated into cosmetics, and may be natural or synthetic, and may be liquid or solid.
  • avocado oil camellia oil, turtle oil, macadamia nut oil, corn oil, mink oil, olive oil, rapeseed oil, egg yolk oil, sesame oil, persic oil, wheat germ oil, sasanqua oil, castor oil, linseed oil, safflower oil, cottonseed oil, perilla oil, soybean oil, peanut oil, tea seed oil, kaya oil, rice bran oil, Chinese giri oil, Japanese kiri oil, jojoba oil, germ oil, glycerin triisooctanoate, glycerin triisopalmitate, octyl isopalmitate, isopropyl isostearate, isostearyl isostearate, isocetyl isostearate, hexyl isostearate, myristyl isostearate,
  • the oil can further contain an oil-soluble drug and/or a fragrance, which can enhance the cosmetic effect by allowing the drug to penetrate the skin, or can provide an aromachological effect by the fragrance.
  • the hydrophilic surfactant may be any of nonionic, anionic, cationic, and amphoteric types, and examples thereof include polyoxyethylene (hereinafter abbreviated as "POE”) sorbitan fatty acid esters, POE glycerin fatty acid esters, POE fatty acid esters, POE alkyl ethers, POE alkylphenyl ethers, POE-polyoxypropylene (hereinafter abbreviated as "POP”) alkyl ethers, POE castor oil or hydrogenated castor oil derivatives, POE phytosterol ethers, POE beeswax-lanolin derivatives, alkanolamides, and POE propylene.
  • POE polyoxyethylene
  • POP polyoxypropylene
  • surfactants include, but are not limited to, glycol fatty acid esters, POE alkylamines, POE fatty acid amides, sucrose fatty acid esters, polyether modified silicones, fatty acid soaps, higher alkyl sulfates, alkyl ether sulfates, N-acylsarcosinates, higher fatty acid amide sulfonates, phosphates, sulfosuccinates, alkylbenzenesulfonates, N-acylglutamates, alkyltrimethylammonium salts, dialkyldimethylammonium salts, imidazoline surfactants, and betaine surfactants. These surfactants can be used alone or in combination of two or more.
  • the content of the hydrophilic surfactant is not particularly limited, and may be, for example, 0.01 mass% or more, 0.05 mass% or more, 0.08 mass% or more, 0.10 mass% or more, 0.12 mass% or more, 0.15 mass% or more, or 0.18 mass% or more, and may be 3.0 mass% or less, 2.0 mass% or less, 1.0 mass% or less, 0.50 mass% or less, 0.30 mass% or less, 0.20 mass% or less, 0.18 mass% or less, or 0.14 mass% or less, relative to the entire composition.
  • R2 may be in a state where hydrogen atoms and alkyl groups having 1 to 4 carbon atoms are mixed. That is, a part of R2 may be a hydrogen atom, and another part may be an alkyl group having 1 to 4 carbon atoms. Preferably, a part of R2 is a hydrogen atom, and another part is a methyl group.
  • R 3 is preferably a hydrogen atom, a methyl group, or an ethyl group, and more preferably a methyl group.
  • At least one of R2 and R3 is preferably a methyl group.
  • m is preferably 1.0 or more and 14 or less, and more preferably 2.0 or more and 5.0 or less.
  • n is preferably 2.0 or more and 34 or less, and more preferably 6.0 or more and 12 or less.
  • m+n may be 4.0 or more, 4.5 or more, 5.0 or more, 6.0 or more, 7.0 or more, 8.0 or more, 9.0 or more, 10 or more, 11 or more, 12 or more, 13 or more, 14 or more, or 15 or more, and may be 50 or less, 45 or less, 40 or less, 35 or less, 30 or less, 25 or less, 20 or less, 15 or less, or 12 or less.
  • m:n may be 1:10 to 10:1.
  • the IOB value of the first polymer of the present invention is 0.4 to 1.8. More specifically, the IOB value of the first polymer of the present invention may be, for example, 0.4 or more, 0.5 or more, 0.6 or more, or 0.7 or more, and may be 1.8 or less, 1.6 or less, 1.4 or less, or 1.2 or less. The IOB value of the first polymer of the present invention is preferably 0.7 or more and 1.2 or less.
  • the content of the first polymer of the present invention is not particularly limited, and may be, for example, 0.01 mass% or more, 0.02 mass% or more, 0.03 mass% or more, 0.04 mass% or more, 0.05 mass% or more, 0.06 mass% or more, 0.07 mass% or more, 0.08 mass% or more, 0.09 mass% or more, 0.1 mass% or more, 0.2 mass% or more, 0.3 mass% or more, 0.4 mass% or more, 0.5 mass% or more, 0.6 mass% or more, or It may be 0.7% by mass or more, 0.8% by mass or more, 0.9% by mass or more, 1.0% by mass or more, 2.0% by mass or more, 3.0% by mass or more, 4.0% by mass or more, or 5.0% by mass or more, and may be 15% by mass or less, 10% by mass or less, 9.0% by mass or less, 8.0% by mass or less, 7.0% by mass or less, 6.0% by mass or less, 5.0% by mass or less, 4.0% by mass or less,
  • the dosage form of the first composition of the present invention can be adjusted arbitrarily according to the purpose.
  • the first composition of the present invention may be an aqueous system (including an aqueous dispersion system), a solubilized system, a microemulsion, an emulsion system, a powder dispersion system, a water-oil two-layer system, a water-oil-powder three-layer system, a gel, a mist, a spray, a mousse, a roll-on, or a stick, or may be a preparation impregnated or applied to a sheet such as a nonwoven fabric.
  • the emulsion system may be, for example, an oil-in-water emulsion composition or a water-in-oil emulsion composition, but is preferably an oil-in-water emulsion composition.
  • the polyethylene glycol having a degree of polymerization of 20 or more is preferably in a solid or semi-solid form (i.e., paste-like) at room temperature (25°C), and more preferably in a solid form.
  • the composition may contain one type of polyethylene glycol having a degree of polymerization of 20 or more, or may contain two or more types of polyethylene glycol having a degree of polymerization of 20 or more, and in the latter case, may contain a combination of solid and semi-solid polyethylene glycols.
  • the content of the polyethylene glycol having a degree of polymerization of 20 or more it is preferable to set the content to be higher in the case of a substance having a small molecular weight.
  • the content is preferably 0.5% by mass or more.
  • the upper limit of the content of polyethylene glycol having a degree of polymerization of 20 or more is not particularly limited, and may be, for example, 10% by mass or less, 9.0% by mass or less, 8.0% by mass or less, 7.0% by mass or less, 6.0% by mass or less, 5.0% by mass or less, 4.0% by mass or less, 3.0% by mass or less, 2.0% by mass or less, or 1.0% by mass or less, relative to the entire composition.
  • Hydrophilic amphiphilic substances may be those conventionally used in cosmetics etc., and are not particularly limited, for example, polyoxyethylene fatty acid ethers, polyoxyethylene fatty acid esters, polyoxyethylene alkyl ethers, polyoxyethylene polyoxypropylene alkyl ethers, polyoxyethylene alkylphenyl ethers, polyoxyethylene cholesteryl ethers, polyoxyethylene phytosterol ethers, polyoxyethylene polyoxypropylene phytosterol ethers, polyoxyethylene hydrogenated castor oil, polyoxyethylene sorbitan fatty acid esters, polyoxyethylene sorbit fatty acid esters, polyoxyethylene sorbit fatty acid esters, polyoxyethylene fatty acid glycerin, polyglycerin fatty acid esters, sucrose fatty acid esters, fatty acid soaps, N-acyl glutamates, acyltaurate salts, acyl alkyl taurate salts, higher alkyl sulfate salts, alkyl ether sulf
  • the third polymer of the present invention having a specific structure as component (P) is amphiphilic and tends to dissolve in an aqueous phase, but also has hydrophobic properties, and therefore has good affinity with, for example, surfactants capable of forming nanodisks, and also with the skin.
  • a composition containing the third polymer of the present invention having a specific structure comes into contact with lipophilic skin, it promotes compatibility between the emulsified particles (silicone nanodisks) formed by the surfactant capable of forming nanodisks and the skin, improving the spreadability when applied.
  • some interaction between the third polymer of the present invention having a specific structure and the surfactant capable of forming nanodisks can improve the overall freshness of the cosmetic composition and the moistness after application.
  • nanodisks may be formed.
  • the nanodisks of the third invention become vesicles, which are the precursors of nanodisks. These vesicles are not spontaneous vesicles.
  • Spontaneous vesicles refer to the equilibrium state of a solution, that is, a solution stored at a constant temperature and pressure for an extremely long period of time in a vesicle-dispersed state.
  • the equilibrium state of the vesicles of the third invention is a two-phase coexistence solution of flat lamellar liquid crystals and water. When this state is dispersed by applying a strong stirring force, it becomes a vesicle.
  • the composition of the third invention may have an aspect in which lamellar nanodisks are adsorbed to the oil-water interface.
  • the long diameter of the nanodisks formed may be in the range of, for example, 20 nm to 1000 nm.
  • whether or not nanodisks have been formed can be determined by observation, for example, with a frozen replica transmission electron microscope (FF-TEM), and the long diameter of the nanodisks can be confirmed from the results.
  • FF-TEM frozen replica transmission electron microscope
  • composition of the third invention has an aqueous phase, in which the total amount of the monohydric alcohol and the dihydric glycol in the aqueous phase may be 1 to 45% by mass, preferably 1 to 35% by mass, and preferably 1 to 15% by mass for the monohydric alcohol alone and 1 to 20% by mass for the dihydric glycol alone.
  • the vesicle membrane may become too flexible or the vesicles may transition to micelles, and the stabilizing effect may not be obtained.
  • composition of the third invention has an oil phase.
  • PEG-12 dimethicone products include, but are not limited to, DOWSIL ES-5373 (Dow Toray), SH3772M, SH3773M, SH3775M (all manufactured by Dow Corning Silicones), and IM-22 (manufactured by Wacker Chemical).
  • the third composition of the present invention may contain nanodiscs made of a surfactant (C).
  • vesicles which are precursors of nanodiscs, may be carried out by known methods.
  • the aqueous phase (A) and the component (C) are mixed and stirred to form vesicles made of the component (C) in the aqueous phase.
  • the average particle size of the vesicles is about 30 nm to 150 nm.
  • composition of the third invention contains the polymer of the third invention.
  • the polymer of the third invention is similar to the "polymer of the first invention” described above, and therefore a detailed description thereof will be omitted here.
  • the content of the polymer of the third invention is not particularly limited, and may be, for example, 0.01 mass% or more, 0.02 mass% or more, 0.03 mass% or more, 0.04 mass% or more, 0.05 mass% or more, 0.06 mass% or more, 0.07 mass% or more, 0.08 mass% or more, 0.09 mass% or more, 0.1 mass% or more, 0.2 mass% or more, 0.3 mass% or more, 0.4 mass% or more, 0.5 mass% or more, 0.6 mass% or more, or It may be 0.7% by mass or more, 0.8% by mass or more, 0.9% by mass or more, 1.0% by mass or more, 2.0% by mass or more, 3.0% by mass or more, 4.0% by mass or more, or 5.0% by mass or more, and may be 15% by mass or less, 10% by mass or less, 9.0% by mass or less, 8.0% by mass or less, 7.0% by mass or less, 6.0% by mass or less, 5.0% by mass or less, 4.0% by mass or less, 3.0%
  • composition of the third invention may further contain other components in addition to the above-mentioned components.
  • the third invention is not limited by these components.
  • composition of the third invention may further contain an ionic surfactant (D).
  • an ionic surfactant When an ionic surfactant is added, the stability of the nanodisk-containing composition made of the polyoxyalkylene-modified silicone (C) is improved.
  • the ionic surfactant used in the third aspect of the present invention is not limited to the silicone surfactant (C) described above, and may be any surfactant that exhibits ionic properties.
  • the blend ratio of (C) polyoxyalkylene-modified silicone to ionic surfactant is 1:0.01 to 1:0.1.
  • composition of the third invention may further comprise (E) a polymeric thickener.
  • silicone elastomer is a silicone elastomer (organopolysiloxane).
  • Silicone elastomers include, for example, cross-linked silicones (cross-linked organopolysiloxanes) in which silicone polymers are cross-linked three-dimensionally. The use of silicone elastomers can reduce stickiness and provide a smooth (silky) feel when applied to the skin.
  • Glycerin can also be added to impart the "smoothness when applied" that is desired by consumers as a cosmetic product. Normally, when glycerin is added in large amounts, the product feels sticky and does not have good usability. In the third invention, even when glycerin is added in large amounts, the product does not feel sticky and has a smooth feel.
  • the IOB value of the obtained polymer 1 was determined as follows and was found to be 1.1.
  • Examples 1-1 to 1-8 and Comparative Examples 1-1 to 1-3 Compositions (semi-transparent microemulsion lotions) of Examples 1-1 to 1-8 and Comparative Examples 1-1 to 1-3 were prepared based on the formulations shown in Table 2 below. Usability was evaluated based on the following evaluation method, and the results are shown in Table 2.
  • compositions of Comparative Examples 2-7 to 2-9 which did not contain the second inventive polymer, were all transparent, but had a chewy feel that was unsatisfactory.
  • Synthesis Examples 1 and 2 The following Synthesis Examples 1 and 2 were synthesized in the same manner as in “Synthesis Examples 1 and 2" in the experimental section of the above-mentioned "First Invention". Various physical property values of the obtained Polymer 1 and Polymer 2 were as shown in the above-mentioned Table 1 and Table 1-2.
  • Examples 3-1 to 3-14 Based on the formulations shown in Tables 3-2 and 3-3 below, oil-in-water emulsion cosmetic compositions of Examples 3-1 to 3-14 were prepared, respectively, and their usability was evaluated based on the evaluation methods described below, with the results shown in Tables 3-2 and 3-3. Unless otherwise specified, the numerical values in Tables 3-2, 3-3, and 3-4 represent blend amounts, and the unit is % by mass.
  • compositions were applied to the skin by a panel of 10 experts and evaluated for its effect as follows.
  • the number of panelists who answered that the composition "feel[ed] fresh on the skin” was classified as follows: “A”: More than 8 out of 10 people feel it; “B”: 5 to 7 out of 10 people feel it; “C”: 3 to 4 out of 10 people feel it; “D”: Fewer than 2 in 10 people feel this.

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  • Organic Chemistry (AREA)
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  • Chemical Kinetics & Catalysis (AREA)
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Abstract

L'invention concerne une nouvelle composition cosmétique dans laquelle la compatibilité avec la peau pendant l'utilisation est améliorée et la sensation de fermeté après utilisation est améliorée, par comparaison avec des produits cosmétiques classiques dans lesquels de l'huile est microparticulaire.　Cette composition cosmétique contient un composant huileux contenant un acide gras saturé ramifié sous forme liquide à température ambiante, un tensioactif hydrophile, un polymère ayant une structure représentée par la formule (1), et de l'eau. Dans la formule (1), R1, R2 et R3 représentent chacun indépendamment un atome d'hydrogène ou un groupe alkyle en C1-4, A est un groupe alkylène en C2-4, et m et n représentent chacun indépendamment 1,0-50. Le polymère a un poids moléculaire moyen en nombre de 10 000 ou moins et une valeur IOB de 0,4 à 1,8.
PCT/JP2023/043986 2022-12-28 2023-12-08 Composition cosmétique Ceased WO2024142847A1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP2022-212623 2022-12-28
JP2022-212707 2022-12-28
JP2022212623A JP2024095369A (ja) 2022-12-28 2022-12-28 化粧料組成物
JP2022212707A JP2024095426A (ja) 2022-12-28 2022-12-28 水中油型乳化化粧料組成物
JP2022-212671 2022-12-28
JP2022212671A JP2024095398A (ja) 2022-12-28 2022-12-28 水性化粧料組成物

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002080416A (ja) * 2000-09-07 2002-03-19 Asahi Denka Kogyo Kk （ポリ）グリセリルエーテルの製造方法
JP2005220112A (ja) * 2004-02-09 2005-08-18 Shiseido Co Ltd 液体洗浄料組成物及び透明液体洗浄料組成物
JP2005343940A (ja) * 2004-06-01 2005-12-15 Kao Corp 保湿剤
JP2017088517A (ja) * 2015-11-05 2017-05-25 株式会社ダイセル ポリグリセリン誘導体、及びこれを含有する皮膚外用剤

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002080416A (ja) * 2000-09-07 2002-03-19 Asahi Denka Kogyo Kk （ポリ）グリセリルエーテルの製造方法
JP2005220112A (ja) * 2004-02-09 2005-08-18 Shiseido Co Ltd 液体洗浄料組成物及び透明液体洗浄料組成物
JP2005343940A (ja) * 2004-06-01 2005-12-15 Kao Corp 保湿剤
JP2017088517A (ja) * 2015-11-05 2017-05-25 株式会社ダイセル ポリグリセリン誘導体、及びこれを含有する皮膚外用剤

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