WO2023100683A1 - 水中油型乳化化粧料 - Google Patents
水中油型乳化化粧料 Download PDFInfo
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- WO2023100683A1 WO2023100683A1 PCT/JP2022/042809 JP2022042809W WO2023100683A1 WO 2023100683 A1 WO2023100683 A1 WO 2023100683A1 JP 2022042809 W JP2022042809 W JP 2022042809W WO 2023100683 A1 WO2023100683 A1 WO 2023100683A1
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- 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
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- 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
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- 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
- A61K8/37—Esters of carboxylic acids
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- 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
- A61K8/44—Aminocarboxylic acids or derivatives thereof, e.g. aminocarboxylic acids containing sulfur; Salts; Esters or N-acylated derivatives thereof
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- 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
- A61K8/49—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing heterocyclic compounds
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- 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
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- 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
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- 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
- A61Q1/14—Preparations for removing make-up
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q17/00—Barrier 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
- A61Q17/04—Topical preparations for affording protection against sunlight or other radiation; Topical sun tanning preparations
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- 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
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- 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
Definitions
- the present invention relates to an oil-in-water emulsified cosmetic.
- An emulsification method is known in which emulsified particles are made finer by a high-pressure emulsification method.
- a high-pressure emulsification method For example, an oil-in-water emulsified composition containing an N-long-chain acyl acidic amino acid monosalt as an emulsifier and capable of stably blending a salt-type drug has been proposed (eg, Patent Document 1). Users are demanding that such a composition have a better feeling during use, and there is room for further improvement in the feeling during use.
- cyclic carboxamide derivatives tend to be sticky when used in cosmetics.
- the present inventors have found that by using an oil-in-water cosmetic containing emulsified particles having an average particle size of 700 nm or less and a specific cyclic carboxamide derivative, an excellent feel during use can be achieved. rice field.
- the present invention is based on these findings.
- a cyclic carboxamide derivative represented by formula (1) or a salt thereof (In the formula, R 1 is a hydrocarbon group having 1 to 6 carbon atoms which may be substituted with a hydroxyl group, or a hydrogen atom, X is —CH 2 — or —N(R 2 )—, wherein R 2 is a hydrocarbon group having 1 to 6 carbon atoms which may be substituted with a hydroxyl group, or a hydrogen atom, and n is an integer from 1 to 3), (B) N-long chain acyl acidic amino acid monosalt, (C) a higher alcohol, (D) oil, and (E) an oil-in-water emulsified cosmetic comprising water, An oil-in-water emulsified cosmetic, wherein the average particle size of emulsified particles is 700 nm or less.
- R 1 is a hydroxyalkyl group having 1 to 3 carbon atoms
- [5] The cosmetic according to any one of [1] to [4], wherein the emulsified particles are formed by high-pressure emulsification.
- component (B) is selected from the group consisting of sodium stearoyl glutamate, sodium lauroyl glutamate, potassium myristoyl glutamate, and sodium myristoyl glutamate.
- component (C) is selected from the group consisting of cetyl alcohol, stearyl alcohol, behenyl alcohol, myristyl alcohol, oleyl alcohol, cetostearyl alcohol, and isostearyl alcohol.
- an oil-in-water emulsified cosmetic with an excellent feeling of use.
- it quickly adapts to the skin during application, moisturizes the skin after application, and suppresses stickiness after application.
- the present invention includes (A) a cyclic carboxamide derivative having a specific structure or a salt thereof, (B) an N-long-chain acyl acidic amino acid monosalt, (C) a higher alcohol, (D) oil, and (E) water. It relates to an oil-in-water emulsified cosmetic (hereinafter sometimes referred to as a cosmetic) consisting of.
- a cosmetic oil-in-water emulsified cosmetic
- the average particle size of emulsified particles contained in the cosmetic is 700 nm or less, preferably 50 to 500 nm, more preferably 100 to 300 nm.
- the emulsified particle size can be optically measured by a dynamic light scattering method or the like.
- Emulsified particles are preferably formed by high pressure emulsification.
- the viscosity of the cosmetic according to the present invention is not particularly limited, but is preferably 5 to 50 mPa ⁇ s. Viscosity can be measured using a Brookfield visc
- the cosmetic according to the present invention is a cyclic carboxamide derivative represented by formula (1) or a salt thereof (hereinafter sometimes referred to as component (A). The same applies to other components). There is.).
- component (A) Cyclic carboxamide derivative or salt thereof
- R 1 is a hydrocarbon group having 1 to 6 carbon atoms which may be substituted with a hydroxyl group, or a hydrogen atom
- X is —CH 2 — or —N(R 2 )—
- R 2 is a hydrocarbon group having 1 to 6 carbon atoms which may be substituted with a hydroxyl group, or a hydrogen atom
- n is an integer of 1-3.
- the above hydrocarbon group is not particularly limited, and may be, for example, an alkyl group, a cycloalkyl group, an alkenyl group, an alkynyl group, a cycloalkylalkyl group, a haloalkyl group, an alkoxyalkyl group, or an alkoxycarbonylalkyl group, preferably is an alkyl group.
- R 1 is a hydroxyalkyl group having 1 to 3 carbon atoms
- X is —CH 2 — or —NH—
- n is 1.
- Specific examples of the cyclic carboxamide derivative represented by formula (1) include the following.
- Component (A) is most preferably 1-(2-hydroxyethyl)-2-imidazolidinone.
- the (A) component may be a salt of the cyclic carboxamide derivative represented by formula (1).
- the type of salt is not particularly limited as long as it is a pharmacologically acceptable salt, and may be an inorganic salt or an organic salt.
- inorganic salts include hydrochlorides, sulfates, phosphates, hydrobromides, sodium salts, potassium salts, magnesium salts, calcium salts, magnesium salts, ammonium salts and the like.
- organic salts include acetates, lactates, maleates, fumarates, tartrates, methanesulfonates, p-toluenesulfonates, triethanolamine salts, amino acid salts and the like.
- component (A) component can be blended one or two or more.
- the blending amount of component (A) is preferably 0.1 to 5% by mass, more preferably 0.3 to 4% by mass, and still more preferably 1 to 3.5% by mass, relative to the total amount of the cosmetic. % by mass.
- the cosmetic according to the present invention comprises (B) an N-long-chain acyl acidic amino acid monosalt.
- (B) component acts as an emulsifier.
- the N-long-chain acyl acidic amino acid of the N-long-chain acyl acidic amino acid mono salt is an amino acid in which a long-chain acyl group is covalently bonded to the nitrogen atom of an acidic amino acid.
- a long-chain acyl group is covalently bonded to the nitrogen atom of an acidic amino acid.
- a long-chain acyl group attached to an acidic amino acid may be linear or branched, saturated or unsaturated.
- the number of carbon atoms in the long-chain acyl group is preferably 12 or more, more preferably 16 or more.
- Component (B) includes, for example, N-stearoylglutamic acid monosalt, N-palmitoylglutamic acid monosalt, N-myristoylglutamic acid monosalt, N-lauroylglutamic acid monosalt, N-coconut oil glutamic acid monosalt, and N-stearoylaspartic acid. monosalts, N-palmitoylaspartic acid monosalt, N-myristoylaspartic acid monosalt, N-lauroylaspartic acid monosalt, N-coconut oil aspartic acid monosalt and the like.
- the counter ion of the N-long-chain acyl acidic amino acid is not particularly limited, but is preferably sodium, potassium, triethanolamine, or the like. More preferably, component (B) is selected from the group consisting of sodium stearoyl glutamate, sodium lauroyl glutamate, potassium myristoyl glutamate, and sodium myristoyl glutamate.
- the component (B) can be blended either alone or in combination of two or more.
- the blending amount of component (B) is preferably 0.1 to 5% by mass, more preferably 0.1 to 1% by mass, based on the total amount of the cosmetic.
- Component (C) Higher Alcohol The cosmetic according to the present invention comprises (C) a higher alcohol.
- Component (C) includes, for example, straight-chain alcohols (e.g., lauryl alcohol, cetyl alcohol, stearyl alcohol, behenyl alcohol, myristyl alcohol, oleyl alcohol, cetostearyl alcohol, etc.), branched-chain alcohols (e.g., lanolin alcohol, cholesterol, phytosterol, hexyldodecanol, isostearyl alcohol, octyldodecanol, etc.).
- component (C) is selected from the group consisting of cetyl alcohol, stearyl alcohol, behenyl alcohol, myristyl alcohol, oleyl alcohol, cetostearyl alcohol, and isostearyl alcohol.
- component (C) component can be blended one or two or more.
- the blending amount of component (C) is preferably 0.1 to 5% by mass, more preferably 0.3 to 3% by mass, based on the total amount of the cosmetic.
- composition (D) Oil The cosmetic according to the present invention comprises (D) oil.
- Component (D) includes, for example, hydrocarbon oils, silicone oils, ester oils, higher fatty acids, liquid oils, solid oils, and semi-solid oils, preferably hydrocarbon oils, silicone oils, and ester oils. selected from the group.
- hydrocarbon oils examples include isododecane, isohexadecane, isoparaffin, mineral oil (liquid paraffin), ozokerite, squalane, pristane, paraffin, ceresin, squalene, petrolatum, microcrystalline wax, and hydrogenated polydecene.
- silicone oils include linear polysiloxanes (e.g., dimethicone, diphenylsiloxyphenyl trimethicone, diphenylpolysiloxane, etc.), cyclic polysiloxanes (e.g., octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, siloxane, etc.), silicone resins that form a three-dimensional network structure, silicone rubber, various modified polysiloxanes (amino-modified polysiloxane, polyether-modified polysiloxane, alkyl-modified polysiloxane, fluorine-modified polysiloxane, etc.), acrylic silicones etc., preferably chain polysiloxane.
- linear polysiloxanes e.g., dimethicone, diphenylsiloxyphenyl trimethicone, diphen
- ester oils include octyl octanoate, nonyl nonanoate, cetyl octanoate, isopropyl myristate, octyldodecyl myristate, isopropyl palmitate, ethylhexyl palmitate, butyl stearate, hexyl laurate, myristyl myristate, and oleic acid.
- higher fatty acids examples include lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, oleic acid, undecylenic acid, toric acid, isostearic acid, linoleic acid, linoleic acid, eicosapentaenoic acid (EPA), docosahexaenoic acid ( DHA) and the like.
- Liquid oils include, for example, avocado oil, camellia oil, macadamia nut oil, corn oil, olive oil, rapeseed oil, sesame oil, persic oil, wheat germ oil, sasanqua oil, castor oil, linseed oil, safflower oil, cottonseed oil, and eno oil. , soybean oil, peanut oil, tea seed oil, kaya oil, rice bran oil, sinagiri oil, Japanese pear oil, jojoba oil, germ oil, triglycerin and the like.
- solid oils include cacao butter, coconut oil, hydrogenated coconut oil, palm oil, palm kernel oil, hydrogenated palm oil, Japanese wax kernel oil, hydrogenated oil, Japanese wax, and hydrogenated castor oil.
- Semi-solid oils include, for example, shea butter, partially hydrogenated coconut oil, partially hydrogenated jojoba oil, and the like.
- component (D) component can be blended one or two or more.
- the blending amount of component (D) is preferably 0.1 to 10% by mass, more preferably 0.5 to 5% by mass, based on the total amount of the cosmetic.
- the cosmetic according to the present invention comprises (E) water.
- water water used in cosmetics, quasi-drugs, etc. can be used, and for example, purified water, ion-exchanged water, tap water, etc. can be used.
- the amount of water to be blended is preferably 50-90% by mass, more preferably 60-85% by mass, based on the total amount of the cosmetic composition according to the present invention.
- the cosmetics according to the present invention can contain optional ingredients that are usually used in cosmetics and pharmaceuticals.
- Optional ingredients include, for example, thickeners, moisturizers, lower alcohols, sequestering agents, neutralizers, pH adjusters, antioxidants, preservatives, drugs, and other ingredients commonly used in cosmetics. As long as it is possible and the effects of the present invention are exhibited, one or more of them can be blended.
- Thickeners include, for example, gum arabic, carrageenan, karaya gum, tragacanth gum, carob gum, quince seed (quince), casein, dextrin, gelatin, sodium pectate, sodium araginate, methylcellulose, ethylcellulose, CMC, hydroxyethylcellulose, hydroxypropyl Cellulose, PVA, PVM, PVP, sodium polyacrylate, carboxyvinyl polymer (carbomer), (dimethylacrylamide/acryloyldimethyltaurate Na) crosspolymer, (acryloyldimethyltaurate ammonium/VP) copolymer, (acryloyldimethyltaurate ammonium methacrylate) Henneth-25) Crosspolymer, (Na acrylate/Na acryloyldimethyltaurate) copolymer, locust bean gum, guar gum, tamarind gum, dialkyldimethylammonium cellulose sulfate
- moisturizing agents examples include polyethylene glycol, propylene glycol, dipropylene glycol (DPG), glycerin, 1,3-butylene glycol (BG), erythritol, xylitol, sorbitol, maltitol, chondroitin sulfate, hyaluronic acid, mucoitin sulfate, caroninic acid, atelocollagen, cholesteryl-12-hydroxystearate, sodium lactate, bile salts, dl-pyrrolidone carboxylate, short-chain soluble collagen, rose rose extract, yarrow extract, melilot extract and the like.
- lower alcohols examples include ethanol, 1-propanol, 2-propanol, isobutyl alcohol, t-butyl alcohol and the like.
- sequestering agents include 1-hydroxyethane-1,1-diphosphonic acid, tetrasodium 1-hydroxyethane-1,1-diphosphonic acid, disodium edetate (EDTA-2Na), and trisodium edetate.
- EDTA-2Na disodium edetate
- trisodium edetate tetrasodium edetate, sodium citrate, sodium polyphosphate, sodium metaphosphate, gluconic acid, phosphoric acid, citric acid, succinic acid, edetic acid, trisodium ethylenediaminehydroxyethyl triacetate, and the like.
- neutralizing agents examples include 2-amino-2-methyl-1-propanol, 2-amino-2-methyl-1,3-propanediol, potassium hydroxide, sodium hydroxide, triethanolamine, sodium carbonate, and the like. are mentioned.
- pH adjusters include buffers such as lactic acid-sodium lactate, citric acid-sodium citrate, and succinic acid-sodium succinate.
- antioxidants include dibutylhydroxytoluene, butylhydroxyanisole, sodium pyrosulfite, and gallic acid esters.
- antiseptics include paraoxybenzoic acid esters such as methylparaben, ethylparaben, and butylparaben, benzoic acid, salicylic acid, sorbic acid, parachlorometacresol, hexachlorophene, benzalkonium chloride, chlorhexidine chloride, and trichlorocarbanilide. , a photosensitive element, phenoxyethanol, and the like.
- drugs include ascorbic acid (vitamin C), tranexamic acid, kojic acid, ellagic acid, arbutin, alkoxysalicylic acid, glycyrrhizic acid, tocopherol, retinol, and salts or derivatives thereof (e.g., sodium L-ascorbate, L -ascorbic acid ester magnesium salt, L-ascorbic acid glucoside, 2-O-ethyl-L-ascorbic acid, 3-O-ethyl-L-ascorbic acid, 4-methoxysalicylic acid sodium salt, 4-methoxysalicylic acid potassium salt, glycyrrhizin dipotassium acid, stearyl glycyrrhizinate, tocopherol acetate, retinol acetate, retinol palmitate, etc.), nicotinic acid and its derivatives (e.g.
- nicotinamide caffeine, tannins, verapamil and its derivatives, licorice extract, glabridin, fire thorns fruit hot water extract, various crude drugs, hydrolyzed silk, hydrolyzed conchiolin, tea extract, tormentilla root extract, Angelica keiskei leaf/stem extract, aloe vera leaf extract, cherry leaf extract, angelica root extract, shiikuwasha pericarp extract, iris root extract , Soarthorn/Hijirimen/Mitsui kelp/Usuva green laver/Wakame extract, Cattail extract, Toad leaf/stem extract, Camellia seed extract, Honey kelp/Wakame extract, Mishima radish root extract, Dutch mustard leaf/stem extract, Cassia bark extract, Rosemary Leaf oil, lavender oil, glutamic acid, trimethylglycine, chlorphenesin, menthoxypropanediol and the like.
- UV absorbers powder ingredients, fragrances, etc. can be added as appropriate.
- the method for emulsifying the cosmetic of the present invention is not particularly limited, it is preferably produced by a conventional method of high-pressure emulsification.
- the cosmetic according to the present invention is prepared by dispersing a mixed dispersion containing the above-described essential ingredients with a high-pressure homogenizer such as a Manton gourin, French press, or microfluidizer at a pressure of 30 MPa or higher, more preferably 50 MPa or higher, and still more preferably 80 MPa or higher. can be produced by high-pressure emulsification under the pressure of
- Cosmetics according to the present invention include, for example, skin care cosmetics (e.g. lotions, milky lotions, creams, serums, packs, masks, etc.), makeup cosmetics (e.g., foundations, makeup bases, etc.), skin cleansers (e.g. , face wash, makeup remover, etc.), sunscreen cosmetics, ointments, and the like. In a preferred embodiment, it is used by impregnating a sheet-like substrate. These forms are merely examples, and the cosmetic according to the present invention is not limited to these forms.
- Examples 1 to 4 and Comparative Example 1 Cosmetics of Examples 1 to 4 and Comparative Example 1 were prepared with the formulations shown in Table 1. The numerical value of each component in the table indicates % by mass. The cosmetics of Examples 1 to 4 were produced by high-pressure emulsification by a conventional method using a high-pressure homogenizer under a pressure of 100 MPa. The cosmetic of Comparative Example 1 was not produced by high-pressure emulsification.
- Average particle size The average particle size of the emulsified particles was measured using a particle size measuring device, Zetasizer Nano S90 (manufactured by Malvern), for the cosmetics immediately after being prepared as described above. The obtained results are shown in Table 1.
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Abstract
Description
[1](A)式(1)で表される環状カルボキサミド誘導体またはその塩
R1は、水酸基で置換されていてもよい炭素数1~6の炭化水素基、または水素原子であり、
Xは、-CH2-または-N(R2)-であり、ここで、R2は、水酸基で置換されていてもよい炭素数1~6の炭化水素基、または水素原子であり、かつ
nは、1~3の整数である)、
(B)N-長鎖アシル酸性アミノ酸モノ塩、
(C)高級アルコール、
(D)油分、および
(E)水
を含んでなる水中油型乳化化粧料であって、
乳化粒子の平均粒子径が700nm以下である、水中油型乳化化粧料。
[2](A)成分の式(1)において、
R1が、炭素数1~3のヒドロキシアルキル基であり、
Xが、-CH2-または-NH-であり、かつ
nが、1である、[1]に記載の化粧料。
[3](A)成分が、1-(2-ヒドロキシエチル)-2-イミダゾリジノンである、[1]または[2]に記載の化粧料。
[4](A)成分の配合量が、化粧料の総量に対して、0.1~5質量%である、請求項[1]~[3]のいずれかに記載の化粧料。
[5]前記乳化粒子が、高圧乳化により形成されたものである、[1]~[4]のいずれかに記載の化粧料。
[6](B)成分が、ステアロイルグルタミン酸ナトリウム、ラウロイルグルタミン酸ナトリウム、ミリストイルグルタミン酸カリウム、およびミリストイルグルタミン酸ナトリウムからなる群から選ばれる、[1]~[5]のいずれかに記載の化粧料。
[7](B)成分の配合量が、化粧料の総量に対して、0.1~5質量%である、[1]~[6]のいずれかに記載の化粧料。
[8](C)成分が、セチルアルコール、ステアリルアルコール、ベヘニルアルコール、ミリスチルアルコール、オレイルアルコール、セトステアリルアルコール、およびイソステアリルアルコールからなる群から選ばれる、[1]~[7]のいずれかに記載の化粧料。
[9](C)成分の配合量が、化粧料の総量に対して、0.1~5質量%である、[1]~[8]のいずれかに記載の化粧料。
[10](D)成分の配合量が、化粧料の総量に対して、0.1~10質量%である、[1]~[9]のいずれかに記載の化粧料。
化粧料中に含まれる乳化粒子の平均粒子径は700nm以下であり、好ましくは50~500nmであり、より好ましくは100~300nmである。乳化粒子径は、動的光散乱法等により光学的に測定することができる。
乳化粒子は、好ましくは高圧乳化により形成される。
本発明による化粧料の粘度は特に限定されるものではないが、好ましくは5~50mPa・sが好ましい。粘度はB型粘度計(60rpm、1分、30℃)を用いて測定することができる。
本発明による化粧料は、式(1)で表される環状カルボキサミド誘導体またはその塩(以下、(A)成分と称することがある。他の成分についても同様である。)を含んでなる。
R1は、水酸基で置換されていてもよい炭素数1~6の炭化水素基、または水素原子であり、
Xは、-CH2-または-N(R2)-であり、ここで、R2は、水酸基で置換されていてもよい炭素数1~6の炭化水素基、または水素原子であり、かつ
nは、1~3の整数である。
上記の炭化水素基は、特に限定されず、例えば、アルキル基、シクロアルキル基、アルケニル基、アルキニル基、シクロアルキルアルキル基、ハロアルキル基、アルコキシアルキル基、アルコキシカルボニルアルキル基であってよく、好ましくはアルキル基である。
R1が、炭素数1~3のヒドロキシアルキル基であり、
Xが、-CH2-または-NH-であり、かつ
nが、1である。
式(1)で表される環状カルボキサミド誘導体の具体例としては、例えば、以下が挙げられる。
本発明による化粧料は、(B)N-長鎖アシル酸性アミノ酸モノ塩を含んでなる。(B)成分は乳化剤として作用する。N-長鎖アシル酸性アミノ酸モノ塩のN-長鎖アシル酸性アミノ酸とは、酸性アミノ酸の窒素原子に長鎖アシル基が共有結合したアミノ酸であり、N-長鎖アシル酸性アミノ酸モノ塩とはN-長鎖アシル酸性アミノ酸の複数のカルボキシ基のうち、一つのカルボキシ基が中和されて塩となったものを意味する。酸性アミノ酸に結合している長鎖アシル基は、直鎖状または分岐状の何れでもよく、飽和、不飽和を問わない。長鎖アシル基の炭素数は12以上であることが好ましく、より好ましくは16以上である。
本発明による化粧料は、(C)高級アルコールを含んでなる。(C)成分としては、例えば、直鎖アルコール(例えば、ラウリルアルコール、セチルアルコール、ステアリルアルコール、ベヘニルアルコール、ミリスチルアルコール、オレイルアルコール、セトステアリルアルコール等)、分枝鎖アルコール(例えば、ラノリンアルコール、コレステロール、フィトステロール、ヘキシルドデカノール、イソステアリルアルコール、オクチルドデカノール等)等が挙げられる。好ましくは、(C)成分は、セチルアルコール、ステアリルアルコール、ベヘニルアルコール、ミリスチルアルコール、オレイルアルコール、セトステアリルアルコール、およびイソステアリルアルコールからなる群から選ばれる。
本発明による化粧料は、(D)油分を含んでなる。(D)成分としては、例えば、炭化水素油、シリコーン油、エステル油、高級脂肪酸、液体油、固体油、半固形油等が挙げられ、好ましくは炭化水素油、シリコーン油、およびエステル油からなる群から選ばれる。
本発明による化粧料は、(E)水を含んでなる。水としては、化粧品、医薬部外品等に使用される水を使用することができ、例えば、精製水、イオン交換水、水道水等を使用することができる。
水の配合量は、本発明による化粧料の総量に対して、好ましくは50~90質量%であり、より好ましくは60~85質量%である。
酸化防止剤としては、例えば、ジブチルヒドロキシトルエン、ブチルヒドロキシアニソール、ピロ亜硫酸ナトリウム、没食子酸エステル類等が挙げられる。
防腐剤としては、例えば、メチルパラベン、エチルパラベン、ブチルパラベン等のパラオキシ安息香酸エステル類、安息香酸、サリチル酸、ソルビン酸、パラクロルメタクレゾール、ヘキサクロロフェン、塩化ベンザルコニウム、塩化クロルヘキシジン、トリクロロカルバニリド、感光素、フェノキシエタノール等が挙げられる。
表1に示される配合で、実施例1~4および比較例1の化粧料を調製した。表中の各成分の数値は質量%を示す。実施例1~4の化粧料は、100MPaの圧力下で、高圧ホモジナイザーを用いて、常法により高圧乳化して製造した。比較例1の化粧料は、高圧乳化により製造されていない。
上記で調製した直後の化粧料をサンプル管に充填し、外観の状態を目視により観察し、以下の基準で安定性を評価した。得られた結果は表1のとおりである。
○:外観に変化はなく、安定性が極めて優れている。
×:凝集やクリーミングが観察される。
[しっとりさ]
AA:パネル10名全員が肌のしっとりさを感じると回答した。
A:パネル10名中7名以上9名以下が肌のしっとりさを感じると回答した。
B:パネル10名中4名以上6名以下が肌のしっとりさを感じると回答した。
C:パネル10名中1名以上3名以下が肌のしっとりさを感じると回答した。
D:パネル10中全員がしっとりさに欠けると回答した。
[べたつきのなさ]
A:パネル10名中7名以上がべたつきがないと回答した。
B:パネル10名中4名以上6名以下がべたつきがないと回答した。
C:パネル10名中1名以上3名以下がべたつきがないと回答した。
D:パネル10名全員がべたつきがあると回答した。
[なじみの早さ]
A:パネル10名中7名以上が肌へのなじみが早いと回答した。
B:パネル10名中4名以上6名以下が肌へのなじみが早いと回答した。
C:パネル10名中1名以上3名以下が肌へのなじみが早いと回答した。
D:パネル10名全員が肌へのなじみが早くないと回答した。
上記で調製された直後の化粧料について、粒子径測定装置ゼータサイザーナノS90(マルバーン社製)を用いて、乳化粒子の平均粒子径を測定した。得られた結果は、表1のとおりである。
Claims (10)
- (A)成分の式(1)において、
R1が、炭素数1~3のヒドロキシアルキル基であり、
Xが、-CH2-または-NH-であり、かつ
nが、1である、請求項1に記載の化粧料。 - (A)成分が、1-(2-ヒドロキシエチル)-2-イミダゾリジノンである、請求項1または2に記載の化粧料。
- (A)成分の配合量が、化粧料の総量に対して、0.1~5質量%である、請求項1または2に記載の化粧料。
- 前記乳化粒子が、高圧乳化により形成されたものである、請求項1または2に記載の化粧料。
- (B)成分が、ステアロイルグルタミン酸ナトリウム、ラウロイルグルタミン酸ナトリウム、ミリストイルグルタミン酸カリウム、およびミリストイルグルタミン酸ナトリウムからなる群から選ばれる、請求項1または2に記載の化粧料。
- (B)成分の配合量が、化粧料の総量に対して、0.1~5質量%である、請求項1または2に記載の化粧料。
- (C)成分が、セチルアルコール、ステアリルアルコール、ベヘニルアルコール、ミリスチルアルコール、オレイルアルコール、セトステアリルアルコール、およびイソステアリルアルコールからなる群から選ばれる、請求項1または2に記載の化粧料。
- (C)成分の配合量が、化粧料の総量に対して、0.1~5質量%である、請求項1または2に記載の化粧料。
- (D)成分の配合量が、化粧料の総量に対して、0.1~10質量%である、請求項1または2に記載の化粧料。
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10259114A (ja) * | 1997-03-14 | 1998-09-29 | Shiseido Co Ltd | 水中油型乳化組成物 |
| JP2006045133A (ja) * | 2004-08-05 | 2006-02-16 | Shiseido Co Ltd | 水中油型乳化組成物 |
| JP2012082152A (ja) * | 2010-10-07 | 2012-04-26 | Kao Corp | 水中油型乳化組成物 |
| JP2012126705A (ja) * | 2010-11-26 | 2012-07-05 | Shiseido Co Ltd | 水中油型乳化組成物 |
| JP2013139395A (ja) * | 2011-12-28 | 2013-07-18 | Kao Corp | 水中油型乳化組成物 |
| JP2020176085A (ja) * | 2019-04-17 | 2020-10-29 | ポーラ化成工業株式会社 | シワ改善用組成物 |
-
2022
- 2022-11-18 CN CN202280073326.XA patent/CN118175985A/zh active Pending
- 2022-11-18 JP JP2023564882A patent/JPWO2023100683A1/ja active Pending
- 2022-11-18 WO PCT/JP2022/042809 patent/WO2023100683A1/ja not_active Ceased
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10259114A (ja) * | 1997-03-14 | 1998-09-29 | Shiseido Co Ltd | 水中油型乳化組成物 |
| JP2006045133A (ja) * | 2004-08-05 | 2006-02-16 | Shiseido Co Ltd | 水中油型乳化組成物 |
| JP2012082152A (ja) * | 2010-10-07 | 2012-04-26 | Kao Corp | 水中油型乳化組成物 |
| JP2012126705A (ja) * | 2010-11-26 | 2012-07-05 | Shiseido Co Ltd | 水中油型乳化組成物 |
| JP2013139395A (ja) * | 2011-12-28 | 2013-07-18 | Kao Corp | 水中油型乳化組成物 |
| JP2020176085A (ja) * | 2019-04-17 | 2020-10-29 | ポーラ化成工業株式会社 | シワ改善用組成物 |
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| JPWO2023100683A1 (ja) | 2023-06-08 |
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