WO2020116230A1 - Oil-in-water emulsion cosmetic - Google Patents

Abstract

[Problem] To provide an oil-in-water emulsion cosmetic having a moist feeling and richness, while having a fresh feeling of use, without reducing smoothness. [Solution] An oil-in-water emulsion cosmetic containing: (A) a polyacrylamide compound; (B) an alkyl-modified carboxyvinyl polymer; (C) a non-emulsifying elastomer; (D) a UV absorber; and (E) a surfactant which is a liquid at a room temperature of 25°C, at a ratio of 0.05 to less than 0.5% by mass with respect to the total quantity of the cosmetic.

Description

Oil-in-water emulsion cosmetic

The present invention relates to an oil-in-water emulsion cosmetic.

Sunscreen cosmetics are intended to block the ultraviolet rays in the sun's rays and protect the skin from the harmful effects of ultraviolet rays.The bases include emulsion type, lotion type, oil type, etc. Are roughly classified into oil-in-water emulsion cosmetics having an aqueous component as an external phase (continuous phase) and water-in-oil emulsion cosmetics having an oily component as an external phase (continuous phase). From the past, sunscreen cosmetics have been required to have a fresh feeling, and among oil-in-water emulsion cosmetics, a UV-scattering agent that has been hydrophobized, especially an oil-in-water emulsion in which powders of zinc oxide, titanium oxide, etc. are emulsified. Since the emulsified cosmetic composition can suppress stickiness, it can realize a fresh feeling of use (for example, Patent Document 1).

However, the powder component contained in the oil-in-water emulsion cosmetic has a problem that it promotes a fresh feeling of use and a sharp spread of the oil-in-water emulsion cosmetic when it stops. From such a viewpoint, Patent Document 2 discloses a partially crosslinked organopolysiloxane polymer, a (sodium acrylate/acryloyldimethyltaurine sodium) copolymer, an acrylic-silicone graft copolymer, and water. Described is an oil-in-water type emulsified cosmetic compounded with which the rapid spreadability at the end is reduced.

Further, in Patent Document 3, a cationic (meth)acrylic silicone-based graft copolymer using a monomer having a quaternary ammonium salt as a hydrophilic group and a water-soluble polymer, particularly an acrylamide-based thickener or carrageenan are described. The combined oil-in-water emulsion cosmetics containing UV absorbers and UV scatterers can be applied to skins derived from metal oxide powders and polymer compounds by increasing the blending amount of surface treatment agents and polymer compounds. It is described as being able to reduce the feeling of burden and stickiness.

JP, 2014-101335, A JP, 2014-156431, A JP, 2014-73973, A

However, since all of Patent Documents 1 to 3 are oil-in-water type emulsion cosmetics containing an ultraviolet scattering agent, it is unavoidable that dust stains occur, and the fresh feeling of use is lost to some extent. However, in order to achieve a high SPF (Sun Protection Factor) value without adding any ultraviolet scattering agent, it is necessary to add a large amount of ultraviolet absorber, resulting in a heavy feeling of use and stickiness. There is a problem. In general, oil-in-water emulsion cosmetics require a surfactant to be added for emulsification and stability, but when a high amount of a surfactant is added, stickiness occurs and the feeling of use becomes heavy, so it is fresh. There is a problem that the usability is reduced.

The present invention has been made in view of the above problems, and an object thereof is to provide an oil-in-water emulsion cosmetic having no moisturizing stains and having a moist feeling and richness while having a fresh feeling of use. ..

The oil-in-water emulsion cosmetic of the present invention,
(A) a polyacrylamide compound,
(B) an alkyl-modified carboxyvinyl polymer,
(C) a non-emulsifying elastomer,
(D) an ultraviolet absorber,
(E) 0.05 to less than 0.5% by mass of the total amount of the cosmetic, and a liquid surfactant at room temperature of 25° C.,
Is included.

The (B) alkyl-modified carboxyvinyl polymer is preferably a (acrylates/alkyl acrylate (C10-30)) crosspolymer.

The (A) polyacrylamide compound is preferably a (sodium acrylate/acryloyldimethyltaurine sodium) copolymer.

The non-emulsifying elastomer (C) is preferably a partially crosslinked organopolysiloxane polymer.
More preferably, the partially crosslinked organopolysiloxane polymer is a (dimethicone/phenyl vinyl dimethicone) crosspolymer, a (dimethicone/vinyl dimethicone) crosspolymer or a dimethicone crosspolymer.

The (E) surfactant is preferably an amphoteric surfactant.

(D) The content of the ultraviolet absorber is preferably 9 to 25 mass% with respect to the total amount of the cosmetic.

The oil-in-water emulsion cosmetic of the present invention,
(A) a polyacrylamide compound,
(B) an alkyl-modified carboxyvinyl polymer,
(C) a non-emulsifying elastomer,
(D) an ultraviolet absorber,
(E) 0.05 to less than 0.5% by mass of the total amount of the cosmetic, and a liquid surfactant at room temperature of 25° C.,
Since it contains, it is possible to provide a moist feeling and richness while having no dust stain and a fresh feeling of use.

Hereinafter, the present invention will be described in detail.
The oil-in-water emulsion cosmetic of the present invention,
(A) a polyacrylamide compound,
(B) an alkyl-modified carboxyvinyl polymer,
(C) a non-emulsifying elastomer,
(D) an ultraviolet absorber,
(E) 0.05 to less than 0.5% by mass of the total amount of the cosmetic, and a liquid surfactant at room temperature of 25° C.,
Contains.
Each component will be described in detail.

(A) Polyacrylamide compound As the (A) polyacrylamide compound, (sodium acrylate/acryloyl dimethyl taurine sodium) copolymer, (dimethyl acrylamide/acryloyl dimethyl taurine sodium) crosspolymer, vinylpyrrolidone/2-acrylamide-2- Methyl propane sulfonic acid (salt) copolymer, sodium acrylate/2-acrylamido-2-methyl propane sulfonic acid (salt) copolymer, acrylamide/2-acrylamido-2-methyl propane sulfonic acid sodium salt copolymer, Preferred examples include acrylamide/2-acrylamido-2-methylpropanesulfonic acid (salt), homopolymer of 2-acrylamido-2-methylpropanesulfonic acid sodium salt, and dimethylacrylamide/2-acrylamido-2-methylpropanesulfonic acid. You can These polyacrylamide compounds may be used alone or in appropriate combination of two or more kinds.

Among them, the (sodium acrylate/acryloyl dimethyl taurine sodium) copolymer can be preferably used from the viewpoint of having good stability over time and having a smooth and light feeling during use. As the (sodium acrylate/acryloyl dimethyl taurine sodium) copolymer, a commercially available product may be used, and examples thereof include SIMULGEL EG (manufactured by SEPPIC).

The blending amount of the (A) polyacrylamide compound is preferably in the range of 0.005 to 5% by mass, and more preferably 0.015 to 2.5% by mass, based on the total amount of the oil-in-water emulsion cosmetic. It is a range. Stability can be made more favorable by being 0.005 mass% or more. Further, when the content is 5% by mass or less, a fresher and lighter feeling of use can be obtained.

(B) Alkyl-modified carboxyvinyl polymer As the (B) alkyl-modified carboxyvinyl polymer, (Acrylates/alkyl acrylate (C10-C30)) crosspolymer is preferable from the viewpoint of having good emulsion stability and a fresh feeling of use. Can be listed in. As the (acrylates/alkyl acrylate (C10-C30)) crosspolymer, a commercially available product may be used, and examples thereof include Pemulen TR-2 Polymeric Emulsifier (manufactured by Lubrizol Advanced Materials, Inc.).

The content of the (B) alkyl-modified carboxyvinyl polymer is preferably in the range of 0.01 to 10% by mass, more preferably 0.03 to 5% by mass, based on the total amount of the oil-in-water emulsion cosmetic. It is a range. When the content is 0.01% by mass or more, the stability can be improved. Further, when the content is 10% by mass or less, a fresher and lighter feeling of use can be obtained.

(C) Non-emulsifying elastomer (C) The non-emulsifying elastomer is preferably a partially crosslinked organopolysiloxane polymer. Examples of the partially crosslinked organopolysiloxane polymer include a crosspolymer (hereinafter referred to as “dimethicone/phenylvinyldimethicone) crosspolymer” produced by the reaction of methylhydrogenpolysiloxane and phenylvinyldimethicone, methylhydrogenpolysiloxane and methylvinyl. Crosspolymer by reaction with polysiloxane (hereinafter referred to as "dimethicone/vinyl dimethicone crosspolymer"), crosspolymer by reaction between partially long-chain alkylated methylhydrogenpolysiloxane and methylvinylpolysiloxane (hereinafter "vinyldimethicone/ Preferred examples thereof include an alkyl dimethicone crosspolymer") and a crosspolymer obtained by a reaction of methylhydrogenpolysiloxane and an alkene (hereinafter referred to as "dimethicone crosspolymer").
In the partially long-chain alkylated methylhydrogenpolysiloxane that is a raw material of the vinyl dimethicone/alkyl dimethicone crosspolymer, the long-chain alkyl preferably has 10 to 18 carbon atoms.

Among them, from the viewpoint of having a moist feeling and richness while having a fresh feeling, it is possible to achieve both contradictory feelings, (dimethicone/phenylvinyldimethicone) crosspolymer, (dimethicone/vinyldimethicone) crosspolymer or dimethicone cloth Polymers can be preferably used. Dimethicone/phenyl vinyl dimethicone) crosspolymer, (dimethicone/vinyl dimethicone) crosspolymer, and dimethicone crosspolymer may be commercially available products, for example, KSG-18A (manufactured by Shin-Etsu Silicone Co., Ltd.) and KSG-16 (manufactured by Shin-Etsu Silicone Co., Ltd.). , Elastomer blend DC9041 (manufactured by Toray Dow Corning).

The content of the non-emulsifying elastomer (C) is preferably in the range of 0.002 to 2% by mass, and more preferably in the range of 0.006 to 1% by mass, based on the total amount of the oil-in-water emulsion cosmetic. Is. When the content is 0.002% by mass or more, it is possible to provide a richer feeling in use. Further, when the amount is 2% by mass or less, a lighter feeling of use can be obtained.

(D) UV Absorber The (D) UV absorber is not particularly limited, but is preferably selected from water-insoluble and oil-insoluble UV absorbers. Specifically, benzoic acid-based ultraviolet absorbers (for example, paraaminobenzoic acid (hereinafter abbreviated as PABA), PABA monoglycerin ester, N,N-dipropoxy PABA ethyl ester, N,N-diethoxy PABA ethyl ester, N, N-dimethyl PABA ethyl ester, N,N-dimethyl PABA butyl ester, etc.); anthranilic acid-based UV absorbers (eg, homomenthyl-N-acetylanthranilate, etc.); salicylic acid-based UV absorbers (eg, amyl salicylate, menthyl) Salicylate, homomenthyl salicylate, octyl salicylate, phenyl salicylate, benzyl salicylate, p-isopropanol phenyl salicylate, etc.; cinnamic acid-based UV absorbers (eg, octyl methoxycinnamate (ethylhexyl paramethoxycinnamate), ethyl-4-isopropylcinnamate) , Methyl-2,5-diisopropylcinnamate, ethyl-2,4-diisopropylcinnamate, methyl-2,4-diisopropylcinnamate, propyl-p-methoxycinnamate, isopropyl-p-methoxycinnamate, isoamyl-p -Methoxycinnamate, octyl-p-methoxycinnamate (2-ethylhexyl-p-methoxycinnamate), 2-ethoxyethyl-p-methoxycinnamate, cyclohexyl-p-methoxycinnamate, ethyl-α-cyano-β -Phenylcinnamate, 2-ethylhexyl-α-cyano-β-phenylcinnamate, glyceryl mono-2-ethylhexanoyl-diparamethoxycinnamate, etc.; Benzophenone-based UV absorbers (eg 2,4-dihydroxybenzophenone) 2,2'-dihydroxy-4-methoxybenzophenone, 2,2'-dihydroxy-4,4'-dimethoxybenzophenone, 2,2',4,4'-tetrahydroxybenzophenone, 2-hydroxy-4-methoxybenzophenone , 2-hydroxy-4-methoxy-4'-methylbenzophenone, 2-hydroxy-4-methoxybenzophenone-5-sulfonate, 4-phenylbenzophenone, 2-ethylhexyl-4'-phenyl-benzophenone-2-carboxylate , 2-hydroxy-4-n-octoxybenzophenone, 4-hydroxy-3-carboxybenzophenone, etc.); 3-(4′-methylbenzylidene)-d,l-camphor, 3-benzylidene-d,l -Camphor; 2-phenyl-5-methylbenzoxazole; 2,2'-hydroxy-5-methylphenylbenzotriazole;2-(2'-hydroxy-5'-t-octylphenyl)benzotriazole; 2-( 2'-hydroxy-5'-methylphenylbenzotriazole;dibenzalazine;dianisoylmethane;4-methoxy-4'-t-butyldibenzoylmethane; 5-(3,3-dimethyl-2-norbornylidene)-3-pentane Preferred examples thereof include 2--2-one and dimorpholinopyridazinone.

Further, a triazine derivative, specifically, 2,4-bis-{[4-(2-ethylhexyloxy)-2-hydroxy]phenyl}-6-(4-methoxyphenyl)-(1,3,5 )-Triazine (Tinosorb S), 2,4,6-tris[4-(2-ethylhexyloxycarbonyl)anilino]1,3,5-triazine (Ubinal T150) and the like are preferable.
Further, as the dibenzoylmethane derivative, 4-tert-butyl-4′-methoxydibenzoylmethane (for example, “parsol 1789”) and the like are preferably mentioned.
Examples of the benzylidene camphor derivative include 3-benzylidene camphor (eg, “Mexoryl SD”; Simex Co.), 4-methylbenzylidene camphor, benzylidene camphor sulfonic acid (eg, “megizolyl SL”; Simex Inc.), methosulfate camphor. Benzalkonium (eg “Megizolyl SO”; Simex Co.), terephthalylidene dicamphorsulphonic acid (eg “Megizolyl SX”; Simex Co.), polyacrylamidemethylbenzylidene camphor (eg “Megizolyl SW”; Simex Co.) and the like are preferred. Can be mentioned.

The blending amount of the (D) ultraviolet absorber is preferably in the range of 9 to 25% by mass, and more preferably in the range of 9 to 20% by mass, based on the total amount of the oil-in-water emulsion cosmetic. When the content is 9% by mass or more, the ultraviolet protection effect can be more sufficient. Further, when the content is 25% by mass or less, a lighter feeling of use can be obtained.

(E) Surfactant The (E) surfactant is a liquid surfactant at room temperature of 25°C. Here, the liquid state means a state having fluidity in the gradient method.
As the surfactant, any of an amphoteric surfactant, an ionic surfactant, and a nonionic surfactant may be used, but from the viewpoint that the storage stability can be further improved, an amphoteric surfactant is particularly preferable. Is preferred. Amphoteric surfactants are classified into carboxylic acid type, sulfuric acid ester type, sulfonic acid type and phosphoric acid ester type depending on the type of anionic group. The carboxylic acid type is further classified into an amino acid type and a betaine type, and the betaine type is more preferable.

More specific examples include alkylbetaine-type amphoteric surfactants, amidobetaine-type amphoteric surfactants, imidazolinium-betaine-type amphoteric surfactants, and sulfobetaine-type amphoteric surfactants. Examples of particularly suitable amphoteric surfactants include lauryl betaine (Nissan Anon BL-SF: manufactured by NOF CORPORATION), cocamidopropyl betaine (Levon 2000HG: manufactured by Sanyo Kasei Co., Ltd.) and the like.

In addition to the amphoteric surfactant, the following hydrophilic nonionic surfactant may be used. Specifically, POE sorbitan fatty acid esters (POE sorbitan oleate, POE sorbitan isostearate, POE sorbitan stearate, POE sorbitan palmitate, etc.) (POE added mole number is preferably 5 to 40), POE sorbit fatty acid ester (POE sorbite laurate, POE sorbite oleate, etc.) (POE addition mole number is preferably 5 to 40), POE glycerin fatty acid esters (POE glycerin isostearate etc.) (POE addition mole number is preferably 5 to 40) .) and polyoxyethylene polyoxypropylene block copolymers.

The content of the surfactant is 0.05 to less than 0.5% by mass, preferably 0.05 to 0.3% by mass, based on the total amount of the oil-in-water emulsion cosmetic. desirable. Stability can be made favorable because it is 0.05 mass% or more. Further, when the amount is less than 0.5% by mass, it is possible to obtain a fresh and light feeling of use without stickiness.

The oil-in-water emulsion cosmetic of the present invention may usually contain the powder contained in the oil-in-water emulsion cosmetic, but from the viewpoint of stability and dusting, the oil-in-water emulsion cosmetic whole amount Is preferably less than 10% by mass, more preferably less than 5% by mass, even more preferably less than 1% by mass, and may not be contained. When the amount of the powder is less than 10% by mass based on the total amount of the oil-in-water emulsified cosmetic, the content of the surfactant can be further reduced and the fresh feeling can be obtained.

Here, the above "powder" is synonymous with "powder". The powder that may be contained is not particularly limited as long as it can be generally used for cosmetics and the like. As the powder, for example, an inorganic powder (for example, talc, kaolin, mica, sericite), muscovite, phlogopite, synthetic mica, phlogopite, biotite, lithia mica, calcined mica, calcined talc, permiculite, Magnesium carbonate, calcium carbonate, aluminum silicate, barium silicate, calcium silicate, magnesium silicate, strontium silicate, tungstate metal salt, magnesium, silica, zeolite, glass, barium sulfate, calcined calcium sulfate (calculated gypsum), Calcium phosphate, fluoroapatite, hydroxyapatite, ceramic powder, metal soap (for example, zinc myristate, calcium palmitate, aluminum stearate, boron nitride, etc.); organic powder (for example, polyamide resin powder (nylon powder), polyethylene powder, Polymethylmethacrylate powder, polystyrene powder, styrene-acrylic acid copolymer resin powder, benzoguanamine resin powder, polytetrafluoroethylene powder, cellulose powder, silicone resin powder, silk powder, wool powder, urethane powder, etc.); inorganic White pigments (eg, titanium dioxide, zinc oxide, etc.); Inorganic red pigments (eg, iron oxide (red iron oxide), iron titanate, etc.); Inorganic brown pigments (γ-iron oxide, etc.), Inorganic yellow pigments (yellow) Iron oxide, loess, etc.), inorganic black pigments (black iron oxide, carbon black, lower titanium oxide, etc.), inorganic purple pigments (eg, manganese violet, cobalt violet, etc.); inorganic green pigments (eg, chromium oxide) , Chromium hydroxide, cobalt titanate, etc.; inorganic blue pigments (for example, ultramarine blue, navy blue, etc.); pearl pigments (for example, 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 (for example, aluminum powder, copper powder, etc.); organic pigments such as zirconium, barium, or aluminum lake (for example, Red No. 201, Red No. 202, Red No. 204, Organic pigments such as Red No. 205, Red No. 220, Red No. 226, Red No. 228, Red No. 405, Orange No. 203, Orange No. 204, Yellow No. 205, Yellow No. 401, and Blue No. 404, Red No. 3, Red No. No. 104, Red No. 106, Red No. 227, Red No. 230, Red No. 401, Red No. 505, Orange No. 205, Yellow No. 4, Yellow No. 5, Yellow No. 202, Yellow No. 203, Green Color No. 3 and Blue No. 1); natural pigments (eg, chlorophyll, β-carotene, etc.) and the like.

In the oil-in-water emulsion cosmetic of the present invention, other components, for example, an aqueous solvent, a humectant, a water-soluble polymer, an oily component, a film-forming agent, a sequestering agent, in the range that does not impair the effects of the present invention, Amino acids, organic amines, polymer emulsions, pH adjusters, skin nutrients, vitamins, antioxidants, antioxidant aids, fragrances and the like can be appropriately contained as necessary.

Examples of the aqueous solvent include water, alcohol, or a mixture thereof.

As water, water used in cosmetics, quasi-drugs, etc. can be used. For example, purified water, ion-exchanged water, tap water, etc. can be used. The aqueous phase may further contain a water-soluble alcohol depending on the purpose.

Examples of water-soluble alcohols include lower alcohols, polyhydric alcohols, polyhydric alcohol polymers, dihydric alcohol alkyl ethers, dihydric alcohol alkyl ethers, dihydric alcohol ether esters, glycerin monoalkyl ethers, sugar alcohols, At least one selected from monosaccharides, oligosaccharides, polysaccharides and their derivatives can be mentioned.

Examples of the lower alcohol include ethanol, propanol, isopropanol, isobutyl alcohol, t-butyl alcohol and the like.

Examples of the polyhydric alcohol include 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 alcohol (eg, glycerin, trimethylolpropane, etc.); tetrahydric alcohol (eg, 1,2,6) -Pentaerythritol such as hexanetriol); pentavalent alcohol (eg xylitol etc.); hexavalent alcohol (eg sorbitol, mannitol etc.); polyhydric alcohol polymer (eg diethylene glycol, dipropylene glycol, triethylene glycol, etc. Polypropylene glycol, tetraethylene glycol, diglycerin, polyethylene glycol, triglycerin, tetraglycerin, polyglycerin, etc.); divalent alcohol alkyl ethers (for example, 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. ); Dihydric alcohol 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 ethyl ether, triethylene glycol monomethyl ether, triethylene glycol monoethyl ether) 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 Dibutyl alcohol ether ester (for example, ethylene glycol monomethyl ether acetate, ethylene glycol monoethyl ether acetate, ethylene glycol monobutyl ether acetate, ethylene glycol monophenyl ether acetate, ethylene glycol diabate, ethylene glycol disuccinate). , Diethylene glycol monoethyl 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) , Ceracyl alcohol, batyl alcohol, etc.); Sugar alcohol (eg, sorbitol, maltitol, maltotriose, mannitol, sucrose, erythritol, glucose, fructose, starch-decomposing sugar, maltose, xylitolose, starch-decomposing sugar reducing alcohol, etc.) Glysolid; Tetrahydrofurfuryl alcohol; POE-Tetrahydrofurfuryl alcohol; POP-butyl ether; POP.POE-butyl ether; Tripolyoxypropylene glycerin ether; POP-glycerin ether; POP-glycerin ether phosphoric acid; POP.POE- Examples include pentane erythritol ether and polyglycerin.

Examples of monosaccharides include tricarbon sugars (eg, D-glyceryl aldehyde, dihydroxyacetone, etc.), tetracarbon sugars (eg, D-erythrose, D-erythrose, D-trereose, erythritol, etc.), Pentose sugars (eg, L-arabinose, D-xylose, L-lyxose, D-arabinose, D-ribose, D-librose, D-xylrose, L- Xylulose, etc., hexose (eg, D-glucose, D-talose, D-busicose, D-galactose, D-fructose, L-galactose, L-) Mannose, D-tagatoose, etc., 7-carbon sugar (eg, aldoheptose, heprose, etc.), 8-carbon sugar (eg, octulose, etc.), deoxy sugar (eg, 2-deoxy-D, etc.) -Ribose, 6-deoxy-L-galactose, 6-deoxy-L-mannose, etc.), amino sugar (eg, D-glucosamine, D-galactosamine, sialic acid, aminouronic acid, muramic acid, etc.) And uronic acid (eg, D-glucuronic acid, D-mannuronic acid, L-guluronic acid, D-galacturonic acid, L-iduronic acid, etc.) and the like.

As the oligosaccharide, for example, at least one selected from sucrose, guanthianose, umbelliferose, lactose, planteose, isoliknoses, α,α-trehalose, raffinose, licnose, umbilicin, stachyose verbascose, etc. Can be mentioned.

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, mucoitin sulfate, guar gum, dextran, and keratosulfate. , Locust bean gum, succinoglucan, caronic acid, and the like.

Examples of other polyols include at least one selected from polyoxyethylene methyl glucoside (Glucam E-10) and polyoxypropylene methyl glucoside (Glucam P-10).

Examples of moisturizers include polyethylene glycol, propylene glycol, glycerin, 1,3-butylene glycol, xylitol, sorbitol, maltitol, chondroitin sulfate, hyaluronic acid, mucoitin sulfate, caronic acid, atelocollagen, cholesteryl-12-hydroxystearate. , Sodium lactate, bile salt, dl-pyrrolidone carboxylate, alkylene oxide derivative, short-chain soluble collagen, diglycerin (EO)PO adduct, Iza oybara extract, Yarrow millet extract, Merrilot extract and the like.

Examples of natural water-soluble polymers include plant-based polymers (for example, gum arabic, tragacanth, galactan, guar gum, carob gum, karaya gum, carrageenan, pectin, agar, quince seed (quince), arge colloid (cassius extract), starch. (Rice, corn, potato, wheat), glycyrrhizic acid); microbial macromolecules (eg xanthan gum, dextran, succinoglucan, bullan etc.); animal macromolecules (eg collagen, casein, albumin, gelatin etc.) etc. Is mentioned.

Examples of the semi-synthetic water-soluble polymer include starch-based polymers (eg, carboxymethyl starch, methyl hydroxypropyl starch, etc.); cellulose-based polymers (methyl cellulose, ethyl cellulose, methyl hydroxypropyl cellulose, hydroxyethyl cellulose, sodium cellulose sulfate). , Hydroxypropyl cellulose, carboxymethyl cellulose, sodium carboxymethyl cellulose, crystalline cellulose, cellulose powder, etc.); alginic acid-based polymers (eg, sodium alginate, propylene glycol alginate, etc.) and the like.

Examples of the synthetic water-soluble polymer include vinyl-based polymers (eg, polyvinyl alcohol, polyvinyl methyl ether, polyvinylpyrrolidone, carboxyvinyl polymer, etc.); polyoxyethylene-based polymers (eg, polyethylene glycol 20,000, 40). ,000,000, 60,000 polyoxyethylene-polyoxypropylene copolymers, etc.); acrylic polymers (eg, sodium polyacrylate, polyethyl acrylate, polyacrylamide, etc.); polyethyleneimine; cationic polymers and the like.

As the oil component, for example, liquid oil/fat, solid oil/fat, wax, hydrocarbon, higher fatty acid, synthetic ester oil and the like can be used.

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, southern oil, castor oil, linseed oil. , Safflower oil, cottonseed oil, eno oil, soybean oil, peanut oil, tea seed oil, kaya oil, rice bran oil, cinnamon oil, Japanese tung oil, jojoba oil, germ oil, triglycerin and the like.

Examples of the solid fats and oils include cocoa butter, coconut oil, horse fat, hardened coconut oil, palm oil, beef tallow, sheep fat, hardened beef tallow, palm kernel oil, pork fat, beef bone fat, sorghum kernel oil, hardened oil, and beef. Examples include leg oil, sorghum, hydrogenated castor oil, and the like.

Examples of the waxes include beeswax, candelilla wax, cotton wax, carnauba wax, bayberry wax, ivota wax, whale wax, montan wax, nuka wax, lanolin, capock wax, lanolin acetate, liquid lanolin, sugar cane wax, lanolin fatty acid isopropyl, hexyl laurate, Examples thereof include reduced lanolin, jojoba wax, hard lanolin, shellac wax, POE lanolin alcohol acetate, POE lanolin alcohol acetate, POE cholesterol ether, lanolin fatty acid polyethylene glycol, and POE hydrogenated lanolin alcohol ether.

Examples of hydrocarbon oils include liquid paraffin, ozokerite, squalane, pristane, paraffin, ceresin, squalene, petrolatum, and microcrystalline wax.

Examples of the higher fatty acid include lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, oleic acid, undecylenic acid, tall acid, isostearic acid, linoleic acid, linoleic acid, eicosapentaenoic acid (EPA), docosahexaenoic acid ( DHA) and the like.

Synthetic ester oils include isopropyl myristate, cetyl octanoate, octyldodecyl myristate, isopropyl palmitate, butyl stearate, hexyl laurate, myristyl myristate, decyl oleate, hexyldecyl dimethyloctanoate, cetyl lactate, myristyl lactate. , Lanolin acetate, isocetyl stearate, isocetyl isostearate, cholesteryl 12-hydroxystearate, ethylene glycol di-2-ethylhexanoate, dipentaerythritol fatty acid ester, N-alkyl glycol monoisostearate, neopentyl glycol dicaprate, apple Acid diisostearyl, glycerin di-2-heptylundecanoate, trimethylolpropane tri-2-ethylhexanoate, trimethylolpropane triisostearate, pentaerythritol tetra-2-ethylhexanoate, glycerin tri-2-ethylhexanoate , Glyceryl trioctanoate, glyceryl triisopalmitate, trimethylolpropane triisostearate, cetyl 2-ethylhexanoate, 2-ethylhexyl palmitate, glyceryl trimyristate, glyceride tri-2-heptylundecanoate, castor oil fatty acid methyl ester Ester, oleyl oleate, acetoglyceride, 2-heptylundecyl palmitate, diisobutyl adipate, N-lauroyl-L-glutamic acid-2-octyldodecyl ester, di-2-heptylundecyl adipate, ethyl laurate, sebacine Di-2-ethylhexyl acid, 2-hexyldecyl myristate, 2-hexyldecyl palmitate, 2-hexyldecyl adipate, diisopropyl sebacate, 2-ethylhexyl succinate, triethyl citrate and the like.

Examples of the film forming agent include anionic film forming agents (for example, (meth)acrylic acid/(meth)acrylic acid ester copolymers, methyl vinyl ether/maleic anhydride high polymers, etc.), cationic film forming agents (for example, cations). Cellulose, dimethyldiallylammonium chloride polymer, dimethyldiallylammonium chloride/acrylamide copolymer, etc., nonionic film forming agent (for example, polyvinyl alcohol, polyvinylpyrrolidone, polyvinyl acetate, polyacrylic acid ester copolymer, (meth)) Acrylamide, polymeric silicone, silicone resin, trimethylsiloxysilicic acid, etc.).

Examples of sequestering agents include 1-hydroxyethane-1,1-diphosphonic acid, 1-hydroxyethane-1,1-diphosphonic acid tetrasodium salt, edetate disodium, edetate trisodium, and edetate tetrasodium salt. , Sodium citrate, sodium polyphosphate, sodium metaphosphate, gluconic acid, phosphoric acid, citric acid, ascorbic acid, succinic acid, edetic acid, trisodium ethylenediamine hydroxyethyl triacetate and the like.

Examples of amino acids include neutral amino acids (eg, threonine, cysteine, etc.); basic amino acids (eg, hydroxylysine, etc.) and the like. Examples of the amino acid derivative include sodium acylsarcosine (sodium lauroylsarcosine), acylglutamate, sodium β-alanine acyl, glutathione, and pyrrolidonecarboxylic acid.

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

Examples of the polymer emulsion include acrylic resin emulsion, polyethyl acrylate emulsion, acrylic resin solution, polyacrylic alkyl ester emulsion, polyvinyl acetate resin emulsion, natural rubber latex and the like.

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

Examples of vitamins include vitamins 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.

As other compoundable ingredients, for example, antiseptics (ethylparaben, butylparaben, chlorphenesin, phenoxyethanol, etc.); antiphlogistics (eg, glycyrrhizic acid derivative, glycyrrhetinic acid derivative, salicylic acid derivative, hinokitiol, allantoin, etc.); whitening Agents (for example, placenta extract, Yukinoshita extract, arbutin, etc.); Various extracts (for example, pearl oyster, laurel, shikon, peony, assembly, birch, sage, loquat, carrot, aloe, mallow, iris, grape, yochinin, Loofah, lily, saffron, senkyu, ginger, capsicum, ononis, garlic, capsicum, chimpi, touki, seaweed, etc., activator (eg, royal jelly, photosensitizer, cholesterol derivative, etc.); blood circulation promoter (eg, nonyl acid) Wallenamide, nicotinic acid benzyl ester, nicotinic acid β-butoxyethyl ester, capsaicin, zingerone, cantharis tincture, ictamol, tannic acid, α-borneol, nicotinic acid tocopherol, inositol hexanicotinate, cyclanderate, cinnarizine, trazolin, acetylcholine , Verapamil, cepharanthin, γ-oryzanol, etc.); antiseborrheic agents (eg, sulfur, thiantol, etc.); anti-inflammatory agents (eg, tranexamic acid, thiotaurine, hypotaurine, etc.) and the like.

The form of the oil-in-water emulsified cosmetic composition of the present invention is not particularly limited, and it is a basic cosmetic such as lotion, emulsion, cream, face wash, gel, essence (serum), pack, lipstick, eye shadow, eyeliner, mascara. Any form can be widely applied as long as it is used for conventional cosmetics such as makeup cosmetics such as foundations and sunscreens, oral cosmetics, aromatic cosmetics, hair cosmetics, body cosmetics.

Hereinafter, the present invention will be described in more detail with reference to Examples, but the present invention is not limited to these Examples. In addition, the compounding amount in the following examples and the like indicates mass% unless otherwise specified.
Oil-in-water emulsion cosmetics having the compositions shown in Tables 1 and 2 below were prepared by a conventional method, and evaluated according to the following criteria.

(Storage stability)
The prepared oil-in-water emulsion cosmetic was stored in a constant temperature bath at 50° C. for 1 month, and then the state was observed and evaluated according to the following criteria. If no change was observed after storage for 1 month, a rolling test was further conducted. In the rolling test, half of the prepared oil-in-water emulsified cosmetic prepared in a cylindrical container was filled, and a rolling tester (manufactured by Hakugawa Rika Kogyo Co., Ltd.) was used to rotate the sample at 45 rpm for 4 hours at room temperature to make up the makeup. This is an observation of the change in the state of charges.
S: No change was observed, and no change was observed in the rolling test. A: No change was observed, but no change was observed in the rolling test. B: A slight change in viscosity or an increase in emulsified particles was observed. There is no problem in use C: Significant change in viscosity or increase in emulsified particles is observed, which hinders use D: Separated

(Usability)
The prepared oil-in-water emulsion cosmetics were used by 10 professional panelists and evaluated for their fresh usability, rich usability and moist usability. The evaluation criteria are as follows.
<Evaluation points>
5 points: Very good 4 points: Good 3 points: Normal 2 points: Poor 1 point: Very bad <Evaluation criteria>
A: Average point is 4.5 points or more B: Average point is 3.5 points or more and less than 4.5 points C: Average point is 2.5 points or more and less than 3.5 points D: Average point is less than 2.5 points

The formulations and evaluation results are shown in Tables 1 and 2. The following commercial products were used as a part of the raw materials shown in the table.
-(Acrylates/alkyl acrylate (C10-C30)) crosspolymer: PEMULEN TR-2 (manufactured by Lubrizol Advanced Materials, Inc.)-(Na acrylate/acryloyl dimethyl taurine Na) copolymer-containing material (purity 37. 5%): SIMULGEL EG ((made by SEPPIC))
-(Dimethicone/phenyl vinyl dimethicone) crosspolymer-containing material (net content 16%): KSG-18A (manufactured by Shin-Etsu Silicone Co., Ltd.)
・(Dimethicone/vinyl dimethicone) crosspolymer-containing material (net content 24%): KSG-16 (manufactured by Shin-Etsu Silicone Co., Ltd.)
Dimethicone crosspolymer inclusion (net content 16%): Elastomer blend DC9041 (Toray Dow Corning)
・Lauryl dimethylamino acetic acid betaine: Anon BL-SF (NOF Corporation)
-Polyoxyethylene sorbitan monooleate (20EO): Nikkor TO-10V (manufactured by Nippon Surfactant Industry Co., Ltd.)
-Polyoxyethylene glyceryl isostearate (8EO): Emarex GWIS-108 (Nippon Emulsion Co., Ltd.)
-Polyoxyethylene hydrogenated castor oil (60EO): Nikkor HCO-60 (manufactured by Nippon Surfactant Industry Co., Ltd.)

As shown in Table 1, Examples 1 to 8 were found to have good results in terms of storage stability, freshness, richness, and moistness. Particularly, in Examples 1, 2, 7 and 8 in which the amphoteric surfactant was used, the storage stability was extremely good. On the other hand, as shown in Table 2, Comparative Example 1 did not contain the (B) alkyl-modified carboxyvinyl polymer, and therefore was poor in both storage stability and usability. Comparative Example 2 contains no (E) surfactant, Comparative Example 3 contains 0.5% by mass of surfactant, and Comparative Example 4 contains solid surfactant at room temperature of 25°C. However, in these cases, although the usability was good, the storage stability was poor. Comparative Example 5 contains no (A) polyacrylamide compound, Comparative Example 6 contains no (C) non-emulsifying elastomer, and Comparative Example 7 contains (A) polyacrylamide compound and (C) non-emulsifying elastomer. Although neither is included, in these cases, neither storage stability nor usability was good.

An example of the formulation of the oil-in-water emulsion cosmetic is shown below.
Prescription example 1: Oil-in-water sunscreen cream compounding ingredients Water balance Disodium edetate 0.1
Glycerin 1
(Acrylates/alkyl acrylate (C10-C30) crosspolymer) 0.1
Carboxy polymer 0.2
(Na Acrylate/Acryloyl Dimethyl Taurine Na) Copolymer Containing Material 0.5
1,3-butylene glycol 4
Dipropylene glycol 4
Potassium hydroxide 0.2
Lauryl dimethylaminoacetic acid betaine 0.1
2-ethylhexyl cetyl 4
Diphenylsiloxyphenyl trimethicone 4
4-tert-butyl-4'-methoxybenzoylmethane 2.5
Octocrylene 5
Ethylhexyl salicylate 5
Homosalate 5
Cetostearyl alcohol 1
(Dimethicone/Phenylvinyldimethicone) Crosspolymer inclusion 0.5
Behenyl alcohol 0.1
Ethanol 6

Claims (7)

1. (A) a polyacrylamide compound,
   (B) an alkyl-modified carboxyvinyl polymer,
   (C) a non-emulsifying elastomer,
   (D) an ultraviolet absorber,
   (E) 0.05 to less than 0.5% by mass of the total amount of the cosmetic, a liquid surfactant at room temperature of 25° C.,
   An oil-in-water type emulsion cosmetic containing.
2. The oil-in-water emulsion cosmetic according to claim 1, wherein the (B) alkyl-modified carboxyvinyl polymer is a (acrylates/alkyl acrylate (C10-30)) crosspolymer.
3. The oil-in-water emulsion cosmetic according to claim 1 or 2, wherein the polyacrylamide compound (A) is a (sodium acrylate/acryloyldimethyltaurine sodium) copolymer.
4. The oil-in-water emulsion cosmetic according to claim 1, 2 or 3, wherein the non-emulsifying elastomer (C) is a partially crosslinked organopolysiloxane polymer.
5. The oil-in-water emulsion cosmetic according to claim 4, wherein the partially crosslinked organopolysiloxane polymer is a (dimethicone/phenylvinyldimethicone) crosspolymer, a (dimethicone/vinyldimethicone) crosspolymer or a dimethicone crosspolymer.
6. The oil-in-water emulsion cosmetic according to any one of claims 1 to 5, wherein the (E) surfactant is an amphoteric surfactant.
7. The oil-in-water emulsion cosmetic according to any one of claims 1 to 6, wherein the content of the (D) ultraviolet absorber is 9 to 25 mass% with respect to the total amount of the cosmetic.