JP2019089747A - Water-in-oil emulsion composition - Google Patents

Abstract

To provide a water-in-oil emulsion composition that has a feel of accent to have a sense of change together with a sufficient body, and also achieves smooth and soft spread.SOLUTION: A water-in-oil emulsion composition contains at least one hydrogel forming agent selected from the group consisting of a polymer containing taurine in the structure and an acrylamide polymer, and organic modified clay mineral.SELECTED DRAWING: None

Description

  The present invention relates to a water-in-oil type emulsion composition, and more particularly to a water-in-oil type emulsion composition whose use feeling is improved by blending a specific polymer forming a hydrogel.

  The water-in-oil emulsion has a high blocking effect due to the presence of the oil component in the continuous phase, and has advantages such as high moisture retention. However, in order to stabilize the emulsified particles, there is a limitation in the blending component of the inner water phase. Therefore, when it apply | coated to skin, it became sticky feeling and it was difficult to obtain a favorable feeling of use, for example, elongation spread worsens.

  Therefore, many studies have been made to obtain a good feeling of use. Water-in-oil emulsion cosmetics containing specific silicone compounds, cyclic silicones, methylphenylpolysiloxanes, hydrocarbon oils, organically modified clay minerals, and titanium oxide, for example, are not sticky and have excellent moisturizing properties, It is disclosed that the elongation spread is good and the storage stability is excellent (see, for example, Patent Document 1). Also, due to the water-in-oil type emulsified cosmetic containing an oily component, polyoxyethylene dipolyhydroxystearate, a specific silicone compound, and an aqueous component, it is easy to conform to the skin and not stretchy and so on It is disclosed that the feeling in use is good (see, for example, Patent Document 2).

JP, 2009-143834, A JP 2004-161698 A

While it has been studied to improve the feeling of use by containing a specific silicone compound as described above, there is a demand to produce a feeling of intonation as the feeling of use. The term "tonal feeling" as used herein refers to a change in use feeling having a thickness (rich) at the beginning of application of the composition and a thinness (oil feeling) at the second half of application.
The present inventors tried to add a film-forming agent to impart a thickness to a cosmetic film in order to produce body in order to meet such a demand. However, when the agent broke down, it faced a problem that the growth was heavy and the feeling of intonation was insufficient.
In view of such circumstances, it is an object of the present invention to provide a water-in-oil type emulsion composition which achieves smooth and soft elongation while having a feeling of toning with sufficient body and feeling of change. Do.

  As a result of intensive studies, the present inventors have found that the above problems can be solved by blending a specific polymer compound capable of forming a hydrogel in a water-in-oil emulsion composition, and complete the present invention It came to

That is, the present invention is as follows.
[1] A water-in-oil emulsion composition comprising: at least one hydrogel-forming agent selected from the group consisting of polymers containing taurine in a structure and an acrylamide polymer, and an organically modified clay mineral.
[2] The water-in-oil emulsified composition according to [1], wherein the hydrogel forming agent is a polymer containing acryloyl dimethyl taurine or a salt thereof as a monomer unit.
[3] The water-in-oil emulsified composition according to [1] or [2], which comprises 0.01 to 5% by mass of the hydrogel-forming agent with respect to the whole composition.
[4] The water-in-oil emulsion composition according to any one of [1] to [3], wherein the organically modified clay mineral is organically modified hectorite.
[5] The water-in-oil emulsified composition according to any one of [1] to [4], further containing cyclopentanesiloxane.
[6] The water-in-oil emulsified composition according to any one of [1] to [5], further comprising one or more silicones selected from the group consisting of polyether-modified silicones and polyglycerin-modified silicones.
[7] The water-in-oil emulsified composition according to any one of [1] to [6], which is a skin external preparation.

  According to the present invention, there is provided a water-in-oil emulsion composition which achieves smooth and soft elongation while being rich and giving a change in the agent.

  The water-in-oil emulsion composition of the present invention comprises one or more hydrogel-forming agents selected from the group consisting of a polymer containing taurine in its structure and an acrylamide polymer, and an organically modified clay mineral.

In the water-in-oil type emulsifier type in the present invention, in addition to the form in which the continuous phase represented by W / O is used as the oil phase, the form represented by // W / O, and W / O / The form represented by W is also included.
In the present invention, the water phase component refers to water and a water soluble component, and the water soluble component refers to a component that is usually mixed and dissolved in water at 25 to 65 ° C. Moreover, the oil agent etc. which are mentioned later are contained in an oil phase normally.
The internal phase ratio in the composition of the present invention is not particularly limited, but from the viewpoint of feeling in use and stability, the water phase: oil phase 1: 4 to 4: 1 is preferable.

The hydrogel forming agent in the present invention contains one or more selected from the group consisting of a polymer containing taurine in its structure and an acrylamide polymer. In the present invention, smooth and soft elongation is realized while imparting a richness to the composition. In addition, a hydrogel formation agent means the substance which can form a gel by water absorption or water retention.
The molecular weight (or degree of polymerization) of the polymer preferable as a hydrogel forming agent in the present invention is not particularly limited as long as it is equivalent to that generally used in the field of external skin preparations.

Here, taurine refers to aminoethyl sulfonic acid, and a polymer containing taurine in its structure means one in which the structure of taurine is included in some or all of the monomers constituting the polymer. More specifically, a polymer containing acryloyldimethyl taurine or a salt thereof as a monomer unit is preferable, and such a monomer preferably includes acryloyl dimethyl taurine or a sodium salt thereof. Examples of polymers containing taurine in the structure include acrylic acid-based polymers, (acrylic acid Na / acryloyldimethyltaurine Na) copolymer, (acrylic acid Na / acryloyldimethyltaurine Na / acrylamide) copolymer, (acrylic acid hydroxy) Preferred are ethyl / acryloyldimethyltaurine Na) copolymer and the like.
The proportion of monomer units containing the structure of taurine in the polymer containing these taurine in the structure is not particularly limited, and may be 0.1 to 100 mol%.

As a preferable acrylamide type polymer as a hydrogel formation agent in this invention, a polyacrylamide, a diallyl dimethyl ammonium chloride acrylamide copolymer, etc. are mentioned preferably.

  In the present invention, the content of the hydrogel forming agent is preferably 0.01 to 5% by mass, more preferably 0.01 to 3.5% by mass, and 0.01 to 1.5% by mass with respect to the entire composition. % Is more preferred. If the amount is too small, the composition may be insufficient in body strength, the feeling of intonation may be insufficient, and if it is too large, the elongation may be heavy, and the degree of freedom in formulation design of the composition may be limited.

The composition of the present invention contains the organically modified clay mineral.
The organically modified clay mineral is a clay mineral in which a part of the organic compound is bound to a part of the clay mineral through a covalent bond or an ionic bond. The composition of the present invention contributes to the stabilization of the emulsified particles.
Examples of clay minerals include squamcreite hectorite, bentonite, montrilonite, kaolinite, illite, marine clay mineral (sea mud), desert rose clay mineral, pascalite and the like. As an organic compound, the compound which has a quaternary amino group is mentioned. Specifically, stearyl trimethyl ammonium chloride, dimethyl distearyl ammonium chloride and the like can be mentioned.
In the present invention, it is particularly preferable to use dimethyldistearyl ammonium chloride-modified hectorite (distearyldimonium hectorite) as the organically modified clay mineral.
In the present invention, the content of the organically modified clay mineral is preferably 0.5 to 6.0% by mass, more preferably 1.5 to 4.0% by mass, with respect to the entire composition. If the amount is too small, the stability of the composition may be insufficient. If the amount is too large, the stability may be impaired, and the degree of freedom in formulation design of the composition may be limited.

  In the composition of the present invention, the mass ratio of the content of the hydrogel forming agent to the organically modified clay mineral is preferably 10: 1 to 1: 600, more preferably 1: 1 to 1: 400, and 1: 2 to 1: 100 is more preferable, and 1: 3 to 1:50 is particularly preferable. By blending in such a ratio, it becomes easy to reconcile excellent feeling in use and storage stability of the composition.

The composition of the present invention usually contains an oil, and examples of the oil include silicone oil, polar oil, natural oil, hydrocarbon oil and the like, among which silicone oil is preferred.
Examples of silicone oils include cyclopentane siloxane, dimethylpolysiloxane (dimethicone), decamethylcyclopentasiloxane, caprylyl methicone, (dimethicone / vinyl dimethicone) crosspolymer, and (dimethicone / phenylvinyl dimethicone) crosspolymer.
Among these, cyclopentane siloxane is more preferable, and it is particularly preferable to contain 5 to 50% by mass with respect to the whole composition of the present invention.

As polar oils, as synthetic ester oils, isopropyl myristate, cetyl octanoate, octyldodecyl myristate, isopropyl palmitate, butyl stearate, hexyl laurate, myristyl myristate, decyl oleate, hexyl dimethyl octanoate, lactic acid Cetyl, myristyl lactate, lanolin acetate, isocetyl stearate, isocetyl isostearate, cholesteryl 12-hydroxystearate, ethylene glycol di-2-ethylhexanoate, dipentaerythritol fatty acid ester, N-alkyl glycol monoisostearate, neocaprate neocaprate Pentyl glycol, diisostearyl malate, glycerin di-2-heptylundecanoate, trimethylolpropane tri-2-ethylhexanoate Trimethylolpropane triisostearate, tetra-2-ethylhexanoate pentane erythritol, tri-2-ethylhexanoate glyceryl, trimethylolpropane triisostearate, cetyl 2-ethylhexanoate,
2-ethylhexyl palmitate, glycerin trimyristate, glyceride tri-2-heptylundecanoate, castor oil fatty acid methyl ester, oleic acid oil, cetostearyl alcohol, acetoglyceride, 2-heptylundecyl palmitate, diisobutyl adipate, N -Lauroyl-L-glutamic acid-2-octyldodecyl ester, di-2-heptylundecyl adipate, ethyl laurate, di-2-ethylhexyl sebacate, 2-hexyl decyl myristate, 2-hexyl decyl palmitate, adipine Examples thereof include 2-hexyl decyl acid, diisopropyl sebacate, 2-ethylhexyl succinate, ethyl acetate, butyl acetate, amyl acetate, triethyl citrate, octyl methoxycinnamate and the like.

As natural oils, 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, soybean oil, peanut oil, tea seed oil, kaaya oil, rice bran oil, Japanese oak oil, Japanese tung oil, jojoba oil, germ oil, triglycerin, glycerin trioctanoate, glycerin triisopalmitate etc. Can be mentioned.
Examples of hydrocarbon oils include isododecane, isohexadecane, squalane, vaseline, hydrogenated poly (C6-12 olefin), hydrogenated polyisobutene and the like.

The composition of the present invention usually contains a surfactant but preferably contains a polyether-modified silicone and / or a polyglycerin-modified silicone as a nonionic surfactant.
Examples of polyether-modified silicones include polyethylene glycol-10 dimethicone, polyethylene glycol-12 dimethicone and the like, and examples of polyglycerin-modified silicones include polyglyceryl-3 disiloxane dimethicone, polyglyceryl-3 polydimethylsiloxyethyl Examples thereof include dimethicone, (polyglyceryl-3 / laurylpolydimethylsiloxyethyl dimethicone) cross polymer, etc. By containing one or more of these, the stability of the composition can be further improved.
In the present invention, the total content of the polyether-modified silicone and / or the polyglycerin-modified silicone is preferably 0.1 to 10% by mass, more preferably 1.0 to 8.0% by mass, based on the whole composition. More preferably, it is 3.0-6.0 mass%.

  The cosmetic composition of the present invention may optionally contain other components which are generally used for external skin preparations, as long as the effects of the present invention are not impaired. Such optional components include, for example, powders, alcohols, humectants, other surfactants, sequestering agents, monosaccharides, oligosaccharides, polysaccharides, amino acids, organic amines, polymer emulsions, pH adjusters, vitamins And antioxidants, water-soluble polymers, UV protection agents, preservatives, various active ingredients and the like.

As powder, for example, inorganic powder (for example, talc, kaolin, mica, sericite (sericite), muscovite, phlogopite, synthetic mica, flash mica, biotite, permiculite, magnesium carbonate, calcium carbonate, silicate Aluminum, barium silicate, calcium silicate, magnesium silicate, strontium silicate, metal salt of tungstate, magnesium, silica, alumina, zeolite, barium sulfate, calcined calcium sulfate (sintered gypsum), calcium phosphate, fluoroapatite, hydroxyapatite, Ceramic powder, metal soap (for example, zinc myristate, calcium palmitate, aluminum stearate), organic powder (for example, polyamide resin powder (nylon powder), polyethylene powder, poly (meth) methyl acrylate powder , Powdered styrene powder, copolymer resin powder of styrene and acrylic acid, silicone resin powder, benzoguanamine resin powder, polytetrafluoroethylene powder, cellulose powder, etc .; inorganic white pigment (eg, titanium dioxide, zinc oxide etc.); inorganic red Inorganic brown pigments (eg, γ-iron oxide etc.); Inorganic yellow pigments (eg yellow iron oxide, yellow earth etc); Inorganic black pigments (E.g.
Black iron oxide, low-order titanium oxide, etc .; Inorganic purple pigment (eg, mango violet, cobalt violet etc.); Inorganic green pigment (eg, chromium oxide, chromium hydroxide, cobalt titanate etc.); Inorganic blue pigment Pearl pigments (eg, titanium oxide coated mica, titanium oxide coated bismuth oxychloride, titanium oxide coated talc, colored titanium oxide coated mica, bismuth oxychloride, fish scale foil, etc.) metal powder pigments (eg, ultramarine, bituminous etc.) For example, aluminum powder, kappa powder, etc.); organic pigments such as zirconium, barium or aluminum lake (eg, red 201, red 202, red 204, red 205, red 220, red 220, red 226, red 228) , Red No. 405, Orange No. 203, Orange No. 204, Yellow Organic pigments such as No. 205, Yellow No. 401 and Blue No. 404, Red No. 3, Red No. 104, Red No. 106, Red No. 227, Red No. 230, Red No. 401, Red No. 505, Red No. 205, Orange No. 205, Yellow 4 No., yellow No. 5, yellow No. 202, yellow No. 203, green No. 3 and blue No. 1), natural dyes (eg chlorophyll, β-carotene etc.) and the like.

The polyhydric alcohol is not particularly limited as long as it is divalent or higher, but trivalent or higher is preferable. Specifically, dihydric alcohols (eg, ethylene glycol, propylene glycol, trimethylene glycol, 1,2-butylene glycol, 1,3-butylene glycol, tetramethylene glycol, 2,3-butylene glycol, pentamethylene glycol) 2-butene-1,4-diol, hexylene glycol, octylene glycol etc .; trihydric alcohols (eg glycerin, trimethylolpropane etc.) tetrahydric alcohols (eg 1,2,6-hexanetriol Etc .; pentahydric alcohols (eg, xylitol etc.); hexahydric alcohols (eg, sorbitol, mannitol etc.); polyhydric alcohol polymers (eg, diethylene glycol, dipropylene glycol, triethylene glycol, etc.) Ripropylene glycol, tetraethylene glycol, diglycerin, polyethylene glycol, triglycerin, tetraglycerin, polyglycerin, etc .; dihydric alcohol alkyl ethers (eg, ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monobutyl ether Ethylene glycol monophenyl ether, ethylene glycol monohexyl ether, ethylene glycol mono 2-methylhexyl ether, ethylene glycol isoamyl ether, ethylene glycol benzyl ether, ethylene glycol isopropyl ether, ethylene glycol dimethyl ether, ethylene glycol diethyl ether, ethylene glycol dibutyl ether Etc.); Alkyl ethers (eg, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol monobutyl ether, diethylene glycol dimethyl ether, diethylene glycol diethyl ether, diethylene glycol butyl ether, diethylene glycol methyl ether, triethylene glycol monomethyl ether, triethylene glycol monoethyl ether, propylene Glycol monomethyl ether, propylene glycol monoethyl ether, propylene glycol monobutyl ether, propylene glycol isopropyl ether, dipropylene glycol methyl ether, dipropylene glycol ethyl ether, dipropylene glycol butyl ether, etc. Dihydric alcohol ether esters (eg, ethylene glycol monomethyl ether acetate, ethylene glycol monoethyl ether acetate, ethylene glycol monobutyl ether acetate, ethylene glycol monophenyl ether acetate, ethylene glycol diazide, ethylene glycol disuccinate, diethylene glycol mono) Ethyl ether acetate, diethylene glycol monobutyl ether acetate, propylene glycol monomethyl ether acetate, propylene glycol monoethyl ether acetate, propylene glycol monopropyl ether acetate, propylene glycol monophenyl ether acetate, etc .; Glycerin monoalkyl ether (eg, xyl alcohol) Sugar alcohols (eg sorbitol, maltitol, maltotriose, mannitol, sucrose, erythritol, glucose, fructose, starch-degrading sugar, maltose, xylitose, starch-decomposing sugar reducing alcohol etc.) Glysolids; tetrahydrofurfuryl alcohol; POE-tetrahydrofurfuryl alcohol; POP-butyl ether; POP. POE-butyl ether; tripolyoxypropylene glycerine ether; POP-glycerin ether; POP-glycerin ether phosphoric acid; POP. POE- Examples include pentane erythritol ether, polyglycerin and the like.

  As a moisturizing agent, for example, polyethylene glycol, propylene glycol, glycerin, 1,3-butylene glycol, xylitol, sorbitol, maltitol, chondroitin sulfate, hyaluronic acid, mucotin sulfate, caronic acid, atelocollagen, cholesteryl-12-hydroxystearate Sodium lactate, bile salts, dl-pyrrolidone carboxylate, short chain soluble collagen, diglycerin (EO) PO adduct, extract of Izayoira, extract of Yarrow extract, extract of Meriloto, and the like.

Other surfactants include anionic surfactants, cationic surfactants, amphoteric surfactants, and nonionic surfactants.
As the anionic surfactant, for example, fatty acid soap (eg, sodium laurate, sodium palmitate etc.); higher alkyl sulfate ester salt (eg, sodium lauryl sulfate, potassium lauryl sulfate etc.); alkyl ether sulfate ester salt (eg, POE lauryl sulfate triethanolamine, POE sodium lauryl sulfate, etc.); N-acyl sarcosinic acid (eg, lauroyl sarcosine sodium etc.); higher fatty acid amido sulfonate (eg, N-myristoyl-N-methyl taurine sodium, coconut oil fatty acid Methyl taurid sodium, lauryl methyl taurid sodium etc .; phosphoric acid ester salts (POE oleyl ether sodium phosphate, POE stearyl ether phosphoric acid etc); sulfosuccinates (eg di) Sodium 2-ethylhexyl sulfosuccinate, monolauroyl monoethanolamide polyoxyethylene sodium sulfosuccinate, lauryl polypropylene glycol sodium sulfosuccinate sodium, etc .; alkyl benzene sulfonate (eg, sodium linear dodecyl benzene sulfonate, triethanolamine linear dodecyl benzene sulfonate) , Linear dodecyl benzene sulfonic acid, etc.); higher fatty acid ester sulfuric acid ester salt (eg, hardened coconut oil, fatty acid, glycerin sodium sulfate, etc.); N-acyl glutamate salt (eg, N-lauroyl glutamate monosodium, N-stearoyl glutamate disodium, N-myristoyl-L-glutamic acid monosodium etc.); sulfated oils (eg funnel oil etc.) POE alkyl POE alkyl allyl ether carboxylates; α-olefin sulfonates; higher fatty acid ester sulfonates; secondary alcohol sulfates; higher fatty acid alkylolamide sulfates; sodium lauroyl monoethanolamide succinate; N -Palmitoyl aspartate ditriethanolamine; sodium caseinate and the like.

As a cationic surfactant, for example, alkyl trimethyl ammonium salt (for example, stearyl trimethyl ammonium chloride, lauryl trimethyl ammonium chloride and the like); alkyl pyridinium salt (for example, cetyl pyridinium chloride and the like); distearyl dimethyl ammonium dialkyl dimethyl ammonium salt; Poly chloride (N, N'-dimethyl-3)
5, 5- Methylene piperidinium); alkyl quaternary ammonium salt; alkyl dimethyl benzyl ammonium salt; alkyl isoquinolinium salt; dialkyl morpholinium salt; POE alkyl amine; alkyl amine salt; polyamine fatty acid derivative; amyl alcohol fatty acid derivative Benzalkonium chloride; benzethonium chloride and the like.

Examples of amphoteric surfactants include imidazoline-based amphoteric surfactants (eg, 2-undecyl-N, N, N- (hydroxyethylcarboxymethyl) -2-imidazoline sodium, 2-cocoyl-2-imidazolinium hydroxide). Side-1-carboxyethyloxy 2
Sodium salts etc .; Betaine surfactants (eg 2-heptadecyl-N-carboxymethyl-N-hydroxyethyl imidazolinium betaine, lauryl dimethylaminoacetic acid betaine, alkyl betaine, amido betaine, sulfo betaine etc) etc Be

As the nonionic surfactant, in addition to the above-mentioned polyether modified silicones and polyglycerin modified silicones, for example, sorbitan fatty acid esters (for example, sorbitan monooleate, sorbitan monostearate, sorbitan monoisostearate Sorbitan monolaurate, sorbitan monopalmitate, sorbitan monostearate, sorbitan sesquioleate, sorbitan trioleate, diglycerol sorbitan penta-2-ethylhexanoate, diglycerol sorbitan tetra-2-ethylhexanoate, etc .; glycerin Fatty acid esters (eg, mono cotton seed oil fatty acid glyceryl, glyceryl monoerucate, glyceryl sesquioleate, glyceryl monostearate, α, α'-pyroglutamate oleate glyceride , Glyceryl monostearate, glyceryl malate, etc .; propylene glycol fatty acid esters (eg, propylene glycol monostearate, etc.); POE castor oil, hydrogenated castor oil derivative (POE castor oil, POE hydrogenated castor oil, etc.); And non-hydrophilic nonionic surfactants. Also, polyglycerin fatty acid esters (eg, polyglyceryl monooleate, polyglyceryl monostearate etc.); POE sorbitan fatty acid esters (eg POE sorbitan monooleate, POE sorbitan monostearate, POE sorbitan tetraoleate etc.); POE Sorbit fatty acid esters (eg, POE sorbite monolaurate, POE sorbite monooleate, POE sorbite pentaoleate, POE sorbite monostearate etc.); POE glycerin fatty acid esters (eg, POE glycerin monostearate, POE glycerin mono) Isostearate, POE monooleate such as POE glycerine triisostearate, etc.); POE fatty acid esters (eg POE distearate) POE monodioleate, ethylene glycol distearate etc .; POE alkyl ethers (eg POE lauryl ether, POE oleyl ether, POE stearyl ether, POE-behenyl ether, POE-2-octyldodecyl ether, POE cholestanol ether etc.) POE Alkyl phenyl ethers (for example, POE nonyl phenyl ether etc.); Pluronic types (for example, pluronic etc.) POE · POP alkyl ethers (eg POE · POP cetyl ether, POE · POP 2-decyl tetradecyl ether, POE · POP monobutyl ether, POE · POP hydrogenated lanolin, POE · POP glycerin ether etc); tetra PO
E · Tetra POP ethylene diamine condensates (for example, Tetronic, etc.); POE castor oil hydrogenated castor oil derivatives (for example, POE castor oil, POE hydrogenated castor oil, POE hydrogenated castor oil monoisostearate, POE hydrogenated castor oil triiso Stearate, POE hydrogenated castor oil monopyroglutamic acid monoisostearic acid diester, POE hydrogenated castor oil maleic acid etc .; POE bee wax · lanolin derivatives (eg POE sorbite beeswax etc) alkanolamides (eg coconut oil fatty acid diethanolamide, laurin Acid monoethanolamide, fatty acid isopropanolamide, etc.); POE propylene glycol fatty acid ester; POE alkylamine; POE fatty acid amide; sucrose fatty acid ester; alkyl glucoside; Dimethylamine oxide; hydrophilic nonionic surfactant such as trioleyl phosphate may also be mentioned.

  As a sequestering agent, for example, 1-hydroxyethane-1,1-diphosphonic acid, 1-hydroxyethane-1,1-diphosphonic acid tetrasodium salt, edetate disodium, edetate trisodium, edetate tetrasodium Sodium citrate, sodium polyphosphate, sodium metaphosphate, gluconic acid, phosphoric acid, citric acid, ascorbic acid, succinic acid, edetic acid, trisodium ethylenediaminehydroxyethyl triacetate and the like.

  Examples of monosaccharides include tricarbon sugars (for example, D-glyceryl aldehyde, dihydroxyacetone and the like); tetracarbon sugars (for example, D-erythrose, D-erythrulose, D-treose, erythritol and the like); L-arabinose, D-xylose, L-lyxose, D-arabinose, D-ribose, D-ribulose, D-xylulose, L-xylulose, etc .; 6-carbon sugar (eg, D-glucose, D-talose, D -Bucicose, D-galactose, D-fructose, L-galactose, L-mannose, D-tagatose etc .; heptacarbon sugar (eg aldoheptose, heprose etc); octacarbon sugar (eg octulose etc); deoxy sugar For example, 2-deoxy-D-ribose, 6-deoxy-L-galactose, 6-deoxy-L Mannose, etc .; Amino sugar (eg, D-glucosamine, D-galactosamine, sialic acid, aminouronic acid, muramic acid, etc.); uronic acid (eg, D-glucuronic acid, D-mannuronic acid, L-guluronic acid, D- Galacturonic acid, L-idronic acid etc. etc. are mentioned.

  Examples of oligosaccharides include sucrose, gunthianose, umbelliferoses, lactose, plantothes, isolicinoses, α, α-trehalose, raffinose, lycnoses, umbilicin, stachyose vervascose and the like.

  Examples of polysaccharides include cellulose, quince seed, chondroitin sulfate, starch, galactan, dermatan sulfate, glycogen, gum arabic, heparan sulfate, hyaluronic acid, tragacanth gum, keratan sulfate, chondroitin, xanthan gum, mucotin sulfate, guar gum, dextran, kerato sulfate Locust bean gum, succinoglucan, caronic acid and the like.

Examples of amino acids include neutral amino acids (for example, threonine, cysteine and the like); basic amino acids (for example, hydroxylysine and the like) and the like. Moreover, as an amino acid derivative, for example, acyl sarcosine sodium (lauroyl sarcosine sodium), acyl glutamate, acyl β-alanine sodium, glutathione, pyrrolidone carboxylic acid and the like can be mentioned.

  Examples of organic amines include monoethanolamine, diethanolamine, triethanolamine, morpholine, triisopropanolamine, 2-amino-2-methyl-1,3-propanediol, 2-amino-2-methyl-1-propanol and the like. Can be mentioned.

  Examples of the polymer emulsion include acrylic resin emulsions, ethyl polyacrylate emulsions, acrylic resin solutions, polyacrylic alkyl ester emulsions, polyvinyl acetate resin emulsions, natural rubber latex and the like.

  Examples of pH adjusting agents include buffers such as lactic acid-sodium lactate, citric acid-sodium citrate, and succinic acid-sodium succinate.

Examples of vitamins include vitamin A, B1, B2, B6, C, E and derivatives thereof, pantothenic acid and derivatives thereof, biotin and the like.

Examples of the antioxidant include tocopherols, dibutylhydroxytoluene, butylhydroxyanisole, gallic acid esters and the like.
Examples of the antioxidant aid include phosphoric acid, citric acid, ascorbic acid, maleic acid, malonic acid, succinic acid, fumaric acid, kephalin, hexametaphosphate, phytic acid, ethylenediaminetetraacetic acid and the like.

Examples of water-soluble polymers include plant-based polymers (for example, gum arabic, tragacanth gum, galactan, guar gum, carob gum, karaya gum, carrageenan, pectin, agarten, quince seed (marello), alge colloid (kaso extract), starch (rice) , Corn, potato, wheat), glycyrrhizinic acid); microbial polymers (for example, xanthan gum, dextran, succinoglucan, bullan etc.); natural polymers such as animal polymers (for example, collagen, casein, albumin, gelatin etc.) Water soluble polymer,
Starch-based polymers (eg, carboxymethyl starch, methylhydroxypropyl starch, etc.); Cellulose-based polymers (methylcellulose, ethylcellulose, methylhydroxypropylcellulose, hydroxyethylcellulose, sodium cellulose sulfate, hydroxypropylcellulose, carboxymethylcellulose, carboxymethylcellulose sodium, Crystalline cellulose, cellulose powder, etc .; semi-synthetic water-soluble polymers such as alginic acid-based polymers (eg, sodium alginate, alginic acid propylene glycol ester, etc.),
Vinyl-based polymers (for example, polyvinyl alcohol, polyvinyl methyl ether, polyvinyl pyrrolidone, carboxyvinyl polymer, etc.); polyoxyethylene-based polymers (for example, polyethylene glycol 20,000, 40,000, 60,000, etc.); acrylics Examples thereof include synthetic water-soluble polymers such as polymers (for example, sodium polyacrylate, polyethyl acrylate and the like); polyethyleneimines; cationic polymers and the like.

Examples of UV protective agents include UV absorbers and UV scattering agents.
As a UV absorber, 2-hydroxy-4-methoxybenzophenone, 2- (2'-hydroxy-5'-methylphenyl) benzotriazole, 2-ethylhexyl dimethoxybenzylidene dioxoimidazolidine propionate, bis (leslucinyl) triazine, UV-A absorbers such as methylene bis benzotriazolyl tetramethyl butyl phenol, diethyl aminohydroxy benzoyl benzoate, t-butyl methoxy benzoyl methane, etc .; 2-ethylhexyl paramethoxycinnamate, 2-cyano-3,3-diphenylacrylic acid 2 -Ethylhexyl, dimethic acid diethyl benzalmalonate, 2,4,6-trianilino-p- (carbo-2'-ethylhexyl-1'-oxy) -1,3,5-triazine, 2-hydroxy-4-methoxy Benzophenone, homomenthyl salicylate, and the UV-B absorbers such as octyl salicylate.
Examples of the ultraviolet scattering agent include fine particle metal oxides such as fine particle titanium dioxide, fine particle zinc oxide, fine particle zirconium oxide, and fine particle cerium oxide.

  Examples of the preservative include parabens, phenoxyethanol, 1,2-alkylene diol and the like.

  Various active ingredients include, for example, anti-inflammatory agents (eg, glycyrrhizinic acid derivatives, glycyrrhetinic acid derivatives, salicylic acid derivatives, hinokitiol, zinc oxide, allantoin etc.); whitening agents (eg, placenta extract, yukinochita extract, arbutin etc.); Various extracts (eg, au-bak, auran, sikon-yaku, seburi, birch, sage, loquat, carrot, aloe, zenia oyster, iris, grapes, yokuinin, raccoon, lily, saffron, saffron, ginseng, oonilis, garlic , Pepper, chili pepper, seaweed, etc., activator (eg, royal jelly, photosensitizer, cholesterol derivative, etc.); blood circulation promoter (eg, nonyl acid warenamide, nicotinic acid benzyl ester, nicotinic acid β-butoxyethyl ester) Capsaicin, zingerone, cantalistinqui, ictamol, tannic acid, α-borneol, nicotinic acid tocopherol, inositol hexanicotinate, cichrandelate, cinnarizine, trazoline, acetylcholine, verapamil, cephalantin, γ-oryzanol, etc.); (For example, sulfur, thianthol and the like); anti-inflammatory agents (for example, tranexamic acid, thiotaurine, hypotaurine and the like) and the like.

  The water-in-oil emulsion composition of the present invention is preferably applied as a skin external preparation because it is excellent in feeling of toning, smoothness, and softness. More preferably, the composition can be applied as a cosmetic (including quasi-drugs), and is more preferably applied to a skin care cosmetic or a makeup cosmetic.

  The composition of the present invention can be produced by a conventional method of preparing a water-in-oil emulsion composition.

  Hereinafter, the present invention will be described in more detail by way of examples, but the present invention is not limited to the following examples as long as the gist thereof is not exceeded.

<Preparation of composition>
Based on the formulations shown in Table 1, the water-in-oil emulsion compositions of Examples and Comparative Examples were prepared according to a conventional method.

<Evaluation of composition>
About each prepared composition, evaluation was performed from a viewpoint of following (1)-(2). The results are shown in Table 1.
(1) Feeling The feel (agitation, smoothness, and softness) when 12 skilled evaluators apply 0.5 g of each composition to the back of their hands was evaluated based on the following criteria. The results are shown in Table 1.
:: very good ○: present △: somewhat present ×: not present

(2) Aging Stability The properties of each composition after storage for 1 week at 60 ° C. were visually observed and evaluated based on the following criteria. The results are shown in Table 1.
:: no change at all ○: slightly separated but no problem in use :: slightly separated ×: separated

Claims (7)

At least one hydrogel forming agent selected from the group consisting of polymers containing taurine in their structures and acrylamide polymers;
A water-in-oil emulsion composition comprising an organically modified clay mineral.   The water-in-oil type emulsion composition according to claim 1, wherein the hydrogel forming agent is a polymer containing acryloyl dimethyl taurine or a salt thereof as a monomer unit.   The water-in-oil type emulsion composition according to claim 1 or 2, wherein the hydrogel forming agent is contained in an amount of 0.01 to 5% by mass based on the whole composition.   The water-in-oil type emulsion composition according to any one of claims 1 to 3, wherein the organically modified clay mineral is organically modified hectorite.   The water-in-oil emulsified composition according to any one of claims 1 to 4, further comprising cyclopentane siloxane.   The water-in-oil emulsion composition according to any one of claims 1 to 5, further comprising one or more silicones selected from the group consisting of polyether-modified silicones and polyglycerin-modified silicones.   The water-in-oil emulsion composition according to any one of claims 1 to 6, which is a skin external preparation.