JP2000086484A - Cosmetic - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a water-in-oil emulsified type cosmetic containing a silicone-based surfactant, a silicone oil, a polyhydric alcohol and salts in a specific amount. SOLUTION: This invention relates to a cosmetic extremely improving stability and a use feeling of a water-in-oil emulsion by including a silicone-based surfactant, a silicone oil and a polyhydric alcohol, and combinedly using 5-20 wt.% of salts such as sodium citrate or sodium chloride.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to cosmetics.

[0002]

2. Description of the Related Art In cosmetics, water-in-oil emulsions have high water repellency, water resistance, and sweat resistance, and are superior to oil-in-water emulsions in protecting the skin and maintaining flexibility. It is widely used in creams, makeup cosmetics, sunscreen cosmetics, hair cosmetics and the like.

On the other hand, cosmetics utilizing water-in-oil type emulsification are:
It is often insufficient in terms of functionality, and has recently been improved by using silicone oil and a silicone-based surfactant necessary for emulsification thereof.

However, when a silicone oil is blended, it is very difficult to obtain a stable water-in-oil emulsion, and there is a problem not only in the stability at high temperatures but also at low temperatures.
Despite strong demand from consumers, cosmetics using water-in-oil emulsions containing silicone oil and having excellent storage stability and usability that can withstand commercial use have not been obtained. That was the current situation.

[0005]

In view of such circumstances, the present inventors have conducted intensive studies on water-in-oil emulsification, and have found that silicone oil, silicone surfactant,
By combining a polyhydric alcohol and a specific amount of salts, the present inventors have found a cosmetic composition that has extremely excellent temperature stability and is sufficiently functionally satisfactory. The present inventors have completed the present invention based on the above findings.

[0006]

That is, the present invention provides a water-in-oil emulsification type cosmetic comprising a silicone surfactant, silicone oil, a polyhydric alcohol and a specific amount of salts. Offer a fee.

The silicone surfactant used in the present invention includes polyether-modified silicone, amino-modified silicone, alcohol-modified silicone, alkylaralkyl polyether-modified silicone, epoxy polyether-modified silicone, mercapto-modified silicone, epoxy-modified silicone, and sulfone. Examples thereof include acid-modified silicone, carboxyl-modified silicone, phosphoric acid-modified silicone, ammonium salt-modified silicone, and sulfobetaine-modified silicone, with polyether-modified silicone being preferred. Examples of the polyether-modified silicone include polyoxyethylene / methylpolysiloxane copolymer, polyoxypropylene / methylpolysiloxane copolymer, poly (oxyethylene / oxypropylene) methylpolysiloxane copolymer, methylpolysiloxane Cetyl methyl polysiloxane / poly (oxyethylene / oxypropylene) methyl polysiloxane copolymer is exemplified. These silicone surfactants may be used alone or in combination of two or more.

The silicone oil used in the present invention includes dimethyl silicone oil, methylphenyl silicone oil, methyl hydrogen silicone oil, cyclic dimethyl silicone oil and the like, and preferably dimethyl silicone oil and cyclic dimethyl silicone oil are preferred. . More preferably, cyclic dimethyl silicone oil is desirable. These silicone oils may be used alone or as a mixture of two or more.

The polyhydric alcohol used in the present invention includes:
For example, 1,3-butylene glycol, propylene glycol, diglycerin, glycerin, triglycerin,
Examples include tetraglycerin, pentaglycerin, hexaglycerin, octaglycerin, nonaglycerin, decaglycerin, trimethylolethane, trimethylolethane, pentaerythritol, sorbitan, sorbitol, dipropylene glycol, and the like. Preferably, 1,3-butylene glycol, glycerin, diglycerin, and dipropylene glycol are good. These polyhydric alcohols
They may be used alone or in combination of two or more.

The salts used in the present invention may be any salts that are easily dissolved in water at room temperature. For example, sodium chloride, magnesium chloride, sodium sulfate, magnesium sulfate, inorganic salts such as potassium nitrate, sodium citrate, potassium acetate, sodium succinate, organic acid salts such as sodium aspartate, ethanolamine hydrochloride, ammonium nitrate, arginine hydrochloride and the like Organic base salts and the like. Preferably, sodium chloride,
Magnesium chloride, sodium sulfate, sodium citrate, potassium acetate, and sodium succinate are preferred, and sodium chloride and sodium citrate are more preferred. These salts may be used alone or in combination of two or more.

The amount of the silicone surfactant in the cosmetic of the present invention is not particularly limited, but is preferably 0.1 to 20%, more preferably 1 to 10%.
It is.

The amount of silicone oil in the cosmetic of the present invention is not particularly limited, but is preferably 5%.
To 90%, more preferably 15 to 60%.

The amount of the polyhydric alcohol in the cosmetic of the present invention is not particularly limited, but is preferably
It is 5 to 80%, more preferably 10 to 50%.

The amount of salts in the cosmetic of the present invention is 5 to 20%, preferably 7 to 15%.

The production method is not particularly limited, but emulsification is preferably carried out by slowly adding the aqueous phase component to the oil phase component while stirring at a low temperature of about 20 ° C. It is better to homogenize using a homogenizer or the like.

The cosmetics of the present invention may optionally contain, if necessary, components generally used in cosmetics as long as the effects of the present invention are not impaired.

The surfactant used in the cosmetic of the present invention is a substance having a hydrophobic part and a hydrophilic part in one molecule,
Specific examples include nonionic surfactants, anionic surfactants, cationic surfactants, amphoteric surfactants, amphiphilic substances, and the like, which are commonly used in emulsified cosmetics.

Examples of the nonionic surfactant include sorbitan monooleate, sorbitan monoisostearate, sorbitan monolaurate, sorbitan monopalmitate, sorbitan monostearate, sorbitan sesquioleate, sorbitan trioleate, and penta-
Sorbitan fatty acid esters such as diglycerol sorbitan 2-ethylhexylate and diglycerol sorbitan tetra-2-ethylhexylate; glycerin fatty acid esters such as glyceryl monostearate and coconut oil glyceryl; glyceryl oleate and glyceryl distearate; monooleic acid Polyglycerin fatty acid esters such as diglyceryl, diglyceryl monoisostearate, decaglyceryl monostearate, decaglyceryl monooleate, hexaglyceryl monostearate;
Propylene glycol fatty acid esters such as propylene glycol monostearate; fatty acid alkyl glucosides such as methyl glucoside stearate, ethyl glucoside stearate, propyl glucoside stearate, methyl glucoside oleate; hydrogenated castor oil derivatives; glycerin alkyl ether; POE-sorbitan Monooleate, POE-sorbitan monostearate, PO
POE-sorbitan fatty acid esters such as E-sorbitan monooleate and POE-sorbitan tetraoleate; POE-sorbit monolaurate, POE-sorbit monooleate, POE-sorbit pentaoleate, POE-sorbit monostearate, etc. POE-Sorbit fatty acid esters; POE-glycerin monostearate, POE-glycerin monoisostearate, POE-glycerin triisostearate, etc. POE-glycerin fatty acid esters; POE-
POE-fatty acid esters such as monooleate, POE-distearate, POE-monodioleate, ethylene glycol distearate; POE-lauryl ether, POE-oleyl ether, POE-stearyl ether, POE-behenyl ether, POE-2-octyldodecyl ether, POE-alkyl ethers such as POE-cholestanol ether;
POE-alkyl phenyl ethers such as POE-octyl phenyl ether, POE-nonyl phenyl ether, POE-dinonyl phenyl ether; Pluronic types such as block polymerization of POE / POP; POE / POP-cetyl ether, POE
POE / POP-alkyl ethers such as POP-2-decyltetradecyl ether, POE / POP-monobutyl ether, POE / POP-hydrogenated lanolin, POE / POP-glycerin ether;
Tetronic and other tetra-POE / tetra-POP-ethylenediamine condensates; POE-castor oil, POE-hardened castor oil,
POE-castor oil-hardened castor oil derivatives such as POE-hardened castor oil monoisostearate, POE-hardened castor oil triisostearate, POE-hardened castor oil monopyroglutamic acid monoisostearate diester, POE-hardened castor oil maleic acid, etc. POE- bee wax lanolin derivatives such as sorbitol beeswax; alkanolamides such as coconut oil fatty acid diethanolamide, lauric acid monoethanolamide, fatty acid isopropanolamide; POE-propylene glycol fatty acid ester; POE-alkylamine;
Fatty acid amides; sucrose fatty acid esters such as sucrose monostearate, sucrose distearate, and sucrose tristearate; POE-nonylphenylformaldehyde condensate; alkylethoxydimethylamine oxide; trioleyl phosphate; polyether-modified silicone and alcohol Examples include silicone-based surfactants such as modified silicone and amino-modified silicone.

Examples of the anionic surfactant include soap base materials, fatty acid soaps such as sodium laurate, sodium palmitate, potassium laurate, potassium myristate, potassium palmitate and potassium stearate; sodium lauryl sulfate, lauryl sulfate Higher alkyl sulfates such as potassium; bile salts such as sodium cholate and sodium deoxycholate; acyl lactates such as sodium stearoyl lactate and sodium isostearoyl lactate; alkyl POE-lauryl sulfate triethanolamine; POE-lauryl sulfate Alkyl ether sulfates such as sodium; N-acyl sarcosine acids such as sodium lauroyl sarcosine; N-myristoyl-N-methyltaurine sodium; coconut oil fatty acid methyltauri Higher fatty acid amide sulfonates such as sodium dodecyl and sodium lauryl methyl tauride; phosphate salts such as POE-sodium oleyl ether phosphate and POE-stearyl ether phosphoric acid; sodium di-2-ethylhexyl sulfosuccinate; monolauroyl mono Sulfosuccinates such as ethanolamide sodium polyoxyethylene sulfosuccinate and sodium lauryl polypropylene glycol sodium sulfosuccinate; alkylbenzene sulfonates such as sodium linear dodecylbenzenesulfonate, triethanolamine linear dodecylbenzenesulfonate, and linear dodecylbenzenesulfonic acid; N Monosodium lauroyl glutamate, disodium N-stearoyl glutamate, mononatri N-myristoyl-1-glutamate N-acyl glutamates such as sodium sulfate; higher fatty acid ester sulfates such as hydrogenated coconut oil fatty acid sodium glycerin sulfate; sulfated oils such as funnel oil; POE-
Alkyl ether carboxylic acid; POE-alkyl allyl ether carboxylate; α-olefin sulfonate; higher fatty acid ester sulfonate; secondary alcohol sulfate salt; higher fatty acid alkylolamide sulfate salt; lauroyl monoethanolamide succinic acid Sodium; N-palmitoyl aspartate ditriethanolamine; sodium caseinate; silicone surfactants such as sulfonic acid-modified silicone;

Examples of the cationic surfactant include alkyltrimethylammonium salts such as stearyltrimethylammonium chloride and lauryltrimethylammonium chloride; dialkyldimethylammonium salts such as distearyldimethylammonium chloride; poly (N,
N'-dimethyl-3,5-methylenepiperidinium),
Alkylpyridinium salts such as cetylpyridinium chloride;
Alkyl quaternary ammonium salts; alkyl dimethyl benzyl ammonium salts; alkyl isoquinolinium salts; dialkyl morphonium salts; POE-alkyl amines; alkyl amine salts;
Amyl alcohol fatty acid derivatives; benzalkonium chloride; benzethonium chloride and the like.

Examples of the amphoteric surfactant include alkyl glycine salts; carboxymethyl glycine salts;
Acylaminoethyl-N-2-hydroxyethylglycine salt; alkylpolyaminopolycarboxyglycine salt;
Alkylaminopropionate; alkyliminodipropionate; N-acylaminoethyl-N-2-
N-alkyl-N, N-dimethylammonium-N-propylsulfonate; N-alkyl-hydroxyethyl pyropionate; alkyldimethylaminoacetate betaine; fatty acid amidopropyldimethylaminoacetate betaine; alkyldihydroxyethylaminoacetate betaine; N, N-dimethylammonium-N- (2-hydroxypropyl) sulfonic acid salt; N-fatty acid amidopropyl-N, N-dimethylammonium-N- (2-hydroxypropyl) sulfonic acid salt;

The amphiphilic substance refers to a substance having a nonpolar group and a polar group in one molecule, and is classified separately from general nonionic surfactants and ionic surfactants. Lauric acid, myristic acid, palmitic acid, stearic acid, behenic (behenic) acid, oleic acid, 12-hydroxystearic acid, undecylenic acid,
Higher fatty acids such as tollic acid, isostearic acid, linoleic acid, linoleic acid, eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA); lauryl alcohol, cetyl alcohol, stearyl alcohol, behenyl alcohol, myristyl alcohol, oleyl alcohol, cetostearyl alcohol, etc. A straight chain alcohol;
Monoglycerides, glycerol; branched fatty alcohols such as monostearyl glycerin ether (bacyl alcohol), 2-decyltetradecinol, lanolin alcohol, cholesterol, phytosterol, hexyldecanol, isostearyl alcohol, octyldodecanol; Compounds having a monoalkyl ether, a monoalkylamine, and a sterol skeleton (cholesterol, phytosterol); diacyl ester-type glycerophospholipids (phosphatidylcholine, phosphatidylethanolamine, phosphatidylinositol, phosphatidylserine, phosphatidic acid, phosphatidylglycerol, phosphatidylserine, and the like) Hydrogenated products and hydroxides; monoacyl ester type glycerol Lipids (lysophosphatidylcholine, lysophosphatidylethanolamine, lysophosphatidylinositol and the like) and hydrogenated products thereof;
Plasmalogen; sphingomyelin; glycolipids (galactosylceramide, glucosylceramide, sulfatide, ganglioside and the like); saponins and the like.

The oily substance used in the cosmetic of the present invention includes oils and fats, waxes, hydrocarbon oils, esters, silicone oil, fluorosilicone oil, perfluoropolyether oil and the like. Examples of liquid oils and fats include 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, eno oil,
Examples include soybean oil, peanut oil, teaseed oil, kaya oil, rice bran oil, sinagiri oil, Japanese kiri oil, jojoba oil, germ oil, triglycerin, glycerin trioctanoate, glycerin triisopalmitate, and the like. As solid fats and oils, for example, cacao butter, coconut oil, horse fat, hardened coconut oil, palm oil, tallow, sheep butter, hardened tallow, palm kernel oil, lard, beef bone oil, mokuro kernel oil, hardened oil, cow There are leg fat, mokuro, hardened castor oil and the like. Examples of waxes include beeswax, candelilla wax, cotton wax, carnauba wax, bayberry wax, ibota wax, whale wax, montan wax, nuka wax, lanolin, kapok wax, lanolin acetate, liquid lanolin, sugar cane wax, lanolin fatty acid isopropyl, hexyl laurate, reduced lanolin , Jojoba wax, hard lanolin, shellac wax and the like. Examples of the hydrocarbon oil include liquid paraffin, ozokerite, squalane, pristane, paraffin, ceresin, squalene, petrolatum, microcrystalline wax and the like. As synthetic ester oils, for example, isopropyl myristate, cetyl octoate, octyl dodecyl myristate, isopropyl palmitate, butyl stearate, hexyl laurate, myristyl myristate, decyl oleate,
Hexyldecyl dimethyloctanoate, cetyl lactate, myristyl lactate, lanolin acetate, isocetyl stearate,
Isocetyl isostearate, cholesteryl hydroxystearate, ethylene glycol di-2-ethylhexylate, dipentaerythritol fatty acid ester, N-alkyl glycol monoisostearate, neopentyl glycol dicaprate, diisostearyl malate, di-2-heptyl Glycerin undecanoate, tri-
Trimethylolpropane 2-ethylhexanoate, trimethylolpropane triisostearate, tetra-2-
Pentane erythritol ethylhexanoate, tri-2-
Glyceryl ethylhexanoate, trimethylolpropane triisostearate, cetyl-2-ethylhexanoate, 2-ethylhexyl palmitate, glycerin trimyristate, glyceride tri-2-heptylundecanoate, methyl ester of castor oil fatty acid, oleic oil , Cetostearyl alcohol, acetoglyceride, 2-heptylundecyl palmitate, diisobutyl adipate, N-lauroyl-1-glutamic acid-
2-octyldodecyl ester, di-2-heptylundecyl adipate, ethyl laurate, di-sebacate
2-ethylhexyl, 2-hexyldecyl myristate, 2-hexyldecyl palmitate, adipic acid-
2-hexyldecyl, diisopropyl sebacate, 2-ethylhexyl succinate, ethyl acetate, butyl acetate,
Examples include amyl acetate and triethyl citrate. Examples of the silicone oil include chain polysiloxanes such as dimethylpolysiloxane, methylphenylpolysiloxane, and methylhydrogenpolysiloxane; cyclic polysiloxanes such as decamethylpolysiloxane, dodecamethylpolysiloxane, and tetramethyltetrahydrogenpolysiloxane A silicone resin, a silicone rubber or the like forming a three-dimensional network structure may be used as the oil.

The aqueous substance used in the cosmetic of the present invention includes lower alcohols, polyhydric alcohols, sugars, water-soluble polymers, vitamins, amino acids and the like. Examples of the lower alcohol include ethanol, propanol, and isopropanol. Examples of the polyhydric alcohol include polyethylene glycol, propylene glycol,
Examples include dipropylene glycol, 1,3-butylene glycol, hexylene glycol, glycerin, diglycerin and the like. Examples of the saccharide include sorbitol, xylitol, maltitol, maltose, d-mannitol, erythritol, trehalose, water syrup, glucose, fructose, lactose and the like. Examples of the water-soluble polymer include gum arabic, tragacanth, galactan, carob gum, guar gum, karaya gum, carrageenan, pectin, agar, quince seed (quince), starch (rice, corn, potato, wheat), alge colloid (brown alga extract) ), Plant-based polymers such as locust bean gum; microbial polymers such as xanthan gum, gellan gum, dextran, succinoglucan, and pullulan; animal-based polymers such as collagen, casein, albumin, and gelatin; carboxymethyl starch, methylhydroxyl Starch-based polymers such as propyl starch; methylcellulose, nitrocellulose, ethylcellulose, methylhydroxypropylcellulose, hydroxyethylcellulose, cellulose sodium sulfate, Mud carboxymethyl cellulose, sodium carboxymethyl cellulose, crystalline cellulose, cellulose polymers cellulose powder and the like; sodium alginate, alginic acid polymers such as propylene glycol alginate;
Vinyl polymers such as polyvinyl methyl ether and carboxyvinyl polymer; polyoxyethylene polymers; polyoxyethylene polyoxypropylene copolymer polymers; acrylic polymers such as sodium polyacrylate, polyethyl acrylate and polyacrylamide Polyethylenimine; cationic polymer; inorganic water-soluble polymers such as bentonite, aluminum magnesium silicate, laponite, hectorite, and silicic anhydride. As vitamins, for example, vitamin A
Oil, retinol, retinol palmitate, retinol acetate, inosit, pyridoxine hydrochloride, benzyl nicotinate, nicotinamide, nicotinic acid-dl-α-tocopherol, magnesium ascorbate phosphate, vitamin D ₂ (ergocasiferol), vitamin D ₃ , d
l-α-tocopherol, dl-α-tocopherol acetate, pantothenic acid, biotin and the like. As amino acids, for example, arginine, aspartic acid, cystine, cysteine, methionine, serine, leucine,
Tryptophan and the like.

In addition, humectants, anti-inflammatory agents, whitening agents, astringents, cooling agents, extracts, preservatives, antioxidants, chelating agents, ultraviolet absorbers, pH adjusters, extenders, coloring pigments,
Bright pigments, organic powders, hydrophobized powders, hydrophilized powders, tar pigments, oily gelling agents, fragrances, bactericides and the like can be used. These may be used alone or in combination of two or more. Examples of the humectant include sorbitol, xylitol, maltitol, maltose, d-mannitol, erythritol, trehalose, water syrup, glucose, fructose, lactose, chondroitin sulfate, sodium hyaluronate, sodium adenosine phosphate, sodium lactate, Pyrrolidone carboxylate, glucosamine, cyclodextrin and the like can be mentioned. Examples of the anti-inflammatory agent include allantoin, glycyrrhetinic acid, azulene and the like. Examples of the whitening agent include arbutin, magnesium ascorbate, sodium ascorbate and the like. Astringents include, for example, zinc oxide, tannic acid, alum and the like. Examples of the cooling agent include l-menthol, camphor and the like. As the extract, for example, dokudami extract, oak extract, melilot extract, bonito extract, licorice extract, peonies extract, sabonso extract, loofah extract, kina extract, saxifrage extract, Clara extract, kohone extract, fennel extract, primrose extract, rose extract , Jiao extract, lemon extract, sicon extract, aloe extract, shobu root extract, eucalyptus extract, horsetail extract, sage extract, thyme extract, tea extract, seaweed extract, cucumber extract, clove extract, raspberry extract, melissa extract, carrot extract, carrot extract , Marronnier extract, peach extract, peach leaf extract, mulberry extract, cornflower extract, hamamelis extract, placenta extract, chest line extract, silk extract, etc. It is. Examples of preservatives include benzoate, paraoxybenzoate, salicylic acid, phenoxyethanol and the like. Examples of the antioxidant include α-tocopherol, dibutylhydroxytoluene, and the like. Examples of the chelating agent include alanine, sodium edetate, sodium polyphosphate, sodium metaphosphate, phosphoric acid, and the like. Examples of the ultraviolet absorber include a benzoic acid ultraviolet absorber, an anthranilic acid ultraviolet absorber, a salicylic acid ultraviolet absorber, a cinnamic acid ultraviolet absorber, a benzophenone ultraviolet absorber, urocanic acid, ethyl urocanate, and 2-phenyl. −5-
Methylbenzoxazole, 2- (2'-hydroxy-
5'-methylphenyl) benzotriazole, 4-te
rt-butyl-4'-methoxydibenzoylmethane and the like.

The form of the cosmetic of the present invention is not limited as long as it can be used as a cosmetic. For example, basic cosmetics (lotion, cream, milky lotion, sunscreen, etc.), hair cosmetics (pomade, hair styling, etc.), makeup cosmetics (foundation, lipstick, etc.) and the like can be mentioned.

[0027]

EXAMPLES Next, the present invention will be described in detail with reference to Examples, but the present invention is not limited thereto. The following Examples-1 to 7 are all stable over time,
There was no discoloration, no odor, no separation, and there was no problem as a product.

Example-1: Lotion Formulation Formulation Amount 1.5.0 parts of dimethylpolysiloxane 2. Polyoxyethylene / methylpolysiloxane copolymer 2.0 Appropriate amount of fragrance 4. Glycerin 5.0 5.1 1,3-butylene glycol 15.0 6. Sodium chloride 7.0 7. Adjust the total amount to 100 with purified water.

Production method: Components 1 to 3 are mixed, and components 4 to 7 are added with stirring, and the mixture is stirred until it becomes uniform.
It is better to use a high shear homogenizer.

Example 2 Cream 1 Formulation Amount 1. 1. methylphenylpolysiloxane 20.0 parts Squalane 3.5 3. Olive oil 2.0 4. Stearic acid 0.55. 5. Octyldodecyl myristate 1.0 6. poly (oxyethylene / oxypropylene) 3.0 dimethylpolysiloxane copolymer Appropriate amount of flavor 8. Diglycerin 35.0 9. Magnesium sulfate 20.0 10. Adjust the total amount to 100 with purified water.

Production method: Components 1 to 7 are mixed and, while stirring, components 8 to 10 are added and stirred until uniform. It is better to use a high shear homogenizer.

Example-3: Cream 2 Formulation Formulation Amount 1. 28.0 parts of dimethylpolysiloxane 2. Octyldodecyl myristate 1.0 3. poly (oxyethylene / oxypropylene) 3.0 dimethylpolysiloxane copolymer Appropriate amount of fragrance 5. Diglycerin 35.0 6. Sodium citrate 20.0 7. Adjust the total amount to 100 with purified water.

Production method: Components 1 to 4 are mixed and, while stirring, components 5 to 7 are added and stirred until uniform.
It is better to use a high shear homogenizer.

Example-4: Emulsion 1 Formulation Formulation Amount 1. Decamethylcyclopentasiloxane 40.0 parts Squalane 5.0 3. 3. Polyoxypropylene / methylpolysiloxane copolymer 7.0 Appropriate amount of fragrance 5. Dipropylene glycol 1.0 6. Glycerin 2.0 7. 7. Potassium acetate 15.0 Adjust the total amount to 100 with purified water.

Production method: Components 1 to 4 are mixed and, with stirring, components 5 to 8 are added and stirred until uniform.
It is better to use a high shear homogenizer.

Example-5: Emulsion 2 Formulation Formulation Amount Hexamethylcyclopentasiloxane 50.0 parts 2. Liquid paraffin 5.0 3. 3. Polyoxypropylene / methylpolysiloxane copolymer 6.0 Appropriate amount of fragrance 5. Dipropylene glycol 1.0 6. Glycerin 2.0 7. Sodium citrate 10.0 8. Adjust the total amount to 100 with purified water.

Manufacturing method: Components 1 to 4 are mixed and, while stirring, components 5 to 8 are added and stirred until uniform.
It is better to use a high shear homogenizer.

Example-6: Sunscreen cream Formulation Amount 1. 1. 2 parts of dimethylpolysiloxane 2. methylphenylpolysiloxane 15.0 3. Polyoxypropylene / methylpolysiloxane copolymer 6.0 4-Ethylhexyl paramethoxycinnamate 6.0 5.0. 5. Fine particle titanium oxide 5.0 6. Appropriate amount of fragrance 7. Glycerin 25.0 8. Sodium succinate 10.0 9. Adjust the total amount to 100 with purified water.

Production method: Components 1 to 4 and 6 are mixed and, while stirring, Component 5 is uniformly dispersed therein using a homomixer. Next, add components 7 to 9 and stir until uniform. It is better to use a high shear homogenizer.

Example-7: Liquid Foundation Formulation Formulation Amount 1. 2 parts of dimethylpolysiloxane 2. methylphenylpolysiloxane 15.0 3. Methylpolysiloxane / cetylmethylpolysiloxane / 10.0 Poly (oxyethylene / oxypropylene) methylsiloxane copolymer Titanium dioxide 7.0 5. Talc 2.0 6. Bengara 4.0 7. Appropriate amount of flavor 8. Propylene glycol 25.0 9. Sodium citrate 5.0 10. Adjust the total amount to 100 with purified water.

Production method: Components 1 to 3 and 7 are mixed and, while stirring, components 4 to 6 are uniformly dispersed therein using a homomixer. Next, add components 8 to 10 and stir until uniform. It is better to use a high shear homogenizer.

[0042]

In order to demonstrate the effect of the present invention, the following experiment was conducted.

EXPERIMENTAL EXAMPLE The following cream was prepared from a cosmetic containing a silicone surfactant, silicone oil, polyhydric alcohol and a specific amount of salts. The temperature stability and usability were compared. The formulations used in the test are shown in Tables 1 and 3, and the results are shown in Tables 2 and 4.

[0044]

[Table 1]

Production method: Components 1 to 3 are mixed, and components 4 to 9 are added while stirring, and the mixture is stirred until uniform.
It is better to use a high shear homogenizer.

[0046]

[Table 2]

[0047]

[Table 3]

Production method: Components 1 to 3 are mixed, and components 4 to 9 are added with stirring, and the mixture is stirred until it becomes uniform.
It is better to use a high shear homogenizer.

[0049]

[Table 4]

As apparent from Tables 2 and 4, Comparative Examples 1 to
In No. 8, none of the stability and usability was excellent,
In Formulation Examples 1 to 8, both stability and feeling of use were excellent.

From the results shown in Tables 2 and 4, the water-in-oil emulsified cosmetic containing the silicone surfactant, silicone oil, and polyhydric alcohol and containing a specific amount of salts shows the stability and feeling of use. The effect of improvement was recognized. Further, when the polyhydric alcohol was blended at a specific ratio, further improvement in stability and feeling in use was recognized.

Continued on the front page (51) Int.Cl. ⁷ Identification FI FI Theme Court II (Reference) // A61K 7/035 A61K 7/035 7/42 7/42 (72) Inventor Jiro Kitahara Tomi, Nishi-ku, Nagoya City, Aichi Prefecture 2-7 Japan Menard Cosmetics Co., Ltd. (72) Inventor Satoru Satoru 2-7 Tomicho, Nishi-ku, Nagoya City, Aichi Prefecture Japan Menard Cosmetics Co., Ltd. F-term (reference) 4C083 AA122 AB232 AB242 AB331 AB332 AB362 AB432 AC022 AC121 AC122 AC242 AC292 AC301 AC302 AC342 AC352 AD042 AD111 AD112 AD151 AD152 AD172 BB01 CC01 CC04 CC05 CC12 CC19 DD23 DD32 EE01 EE06 EE17

Claims (4)

[Claims] 1. A silicone surfactant, silicone oil,
A water-in-oil emulsion type cosmetic containing a polyhydric alcohol and containing 5 to 20% by weight of a salt (hereinafter, simply referred to as%). 2. The compounding amount of the polyhydric alcohol is 10 to 50%.
The cosmetic according to claim 1, which is: 3. The cosmetic according to claim 1, wherein the salt is sodium citrate or sodium chloride. 4. The polyhydric alcohol is glycerin, diglycerin or 1,3-butylene glycol.
Or the cosmetic according to claim 3.