JP2022099546A - Water-in-oil emulsion cosmetic - Google Patents

Abstract

To provide a water-in-oil emulsion cosmetic having a suitable firmness without being greasy, and providing a feeling of richness and fitting.SOLUTION: A water-in-oil emulsion cosmetic contains: (A) an alkoxysalicylic acid represented by general formula (I) in the figure or a salt thereof (in formula (I), R represents a C1-6 lower alkyl group); (B) an organically modified clay mineral; (C) a silicone surfactant having an HLB less than 8; and (D) a silicone oil of at least 1000 mPa S.SELECTED DRAWING: None

Description

The present invention relates to a water-in-oil emulsified cosmetic containing alkoxysalicylic acid.

Alkoxysalicylic acid or a salt thereof is known as an active ingredient having an excellent whitening effect for improving or preventing abnormal deposition of melanin on the skin. However, in general, when alkoxysalicylic acid or a salt thereof is blended in a water-in-oil emulsified composition, there are problems such as poor stability over time and in some cases phase separation between the oil phase and the aqueous phase.

In order to improve such problems of stability and usability, Patent Document 1 describes a water-in-oil emulsified skin external preparation containing alkoxysalicylic acid or a salt thereof, salts as a buffer, and a weight average molecular weight 1,. It has been proposed to add 000 to 200,000 polyethylene glycols in a predetermined amount.

Further, Patent Document 2 describes any material such as glass, metal, resin, and pottery by blending a liquid fatty acid with a water-in-oil emulsified composition containing alkoxysalicylic acid or a salt thereof and an organically modified clay mineral. It is described that the emulsion stability over time is good even when it is contained in the container, it is not sticky, and it has a moist feel.

Japanese Patent No. 4073389 International Publication 2013/024653

It is common practice to add organically modified clay minerals to water-in-oil emulsified cosmetics as a viscosity modifier, an emulsion stabilizer, and for the purpose of imparting a moist feel. When alkoxysalicylic acid or a salt thereof is added to a water-in-oil emulsified cosmetic containing an organically modified clay mineral, there is a problem that the hardness is lowered. Further, since the richness and fit of the conventional water-in-oil emulsified cosmetic containing alkoxysalicylic acid or a salt thereof are not always at a satisfactory level, further improvement is desired. When trying to increase the hardness, a method of blending a large amount of wax is generally taken, but if a high blend of wax is used, stickiness occurs.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a water-in-oil emulsified cosmetic having an appropriate hardness, no stickiness, and a good richness and fit.

（式（Ｉ）中、Ｒは炭素原子数１～６の低級アルキル基を示す）
（Ｂ）有機変性粘土鉱物と、
（Ｃ）ＨＬＢが８未満のシリコーン界面活性剤と、
（Ｄ）１０００ｍＰａ・Ｓ以上のシリコーン油と、
を含むものである。 The water-in-oil emulsified cosmetic of the present invention
(A) Alkoxysalicylic acid represented by the following general formula (I) or a salt thereof, and

(In formula (I), R represents a lower alkyl group having 1 to 6 carbon atoms)
(B) Organic modified clay minerals and
(C) A silicone surfactant having an HLB of less than 8 and
(D) Silicone oil of 1000 mPa · S or more and
Is included.

The water-in-oil emulsified cosmetic of the present invention preferably further contains (E) a silicone elastomer.

The water-in-oil emulsified cosmetic of the present invention preferably further contains (F) a silicone film agent.

(D) Silicone oil is preferably 0.5 to 2.5% by mass with respect to the total amount of cosmetics.

(A) The alkoxysalicylic acid or a salt thereof is preferably a 4-methoxysalicylic acid potassium salt.

(B) The organically modified clay mineral is preferably 1.5 to 3% by mass with respect to the total amount of cosmetics.

(B) The organically modified clay mineral is preferably distearylammonium hectorite.

The water-in-oil emulsified cosmetic of the present invention
(A) Alkoxysalicylic acid represented by the above general formula (I) or a salt thereof, and
(B) Organic modified clay minerals and
(C) A silicone surfactant having an HLB of less than 8 and
(D) Silicone oil of 1000 mPa · S or more and
Since it contains the above, it can be made to have an appropriate hardness but not stickiness, and have a good richness and fit.

The water-in-oil emulsified cosmetic of the present invention
(A) Alkoxysalicylic acid represented by the above general formula (I) or a salt thereof, and
(B) Organic modified clay minerals and
(C) A silicone surfactant having an HLB of less than 8 and
(D) Silicone oil of 1000 mPa · S or more and
Is included.
Each component will be described in detail below. In the present specification, PEG is an abbreviation for polyethylene glycol and PPG is an abbreviation for polypropylene glycol.

(A) alkoxysalicylic acid represented by the general formula (I) or a salt thereof (A) Aalkoxysalicylic acid represented by the general formula (I) or a salt thereof (A) contained in the water-in-oil emulsified cosmetic of the present invention (A) Hereinafter, (A) alkoxysalicylic acid or a salt thereof) is not particularly limited as long as it is used in the fields of cosmetics, pharmaceuticals, non-pharmaceutical products, etc., but in the present invention, the above general formula (I) ), That is, a salicylic acid-based compound in which the hydrogen atom at any of the 3-position, 4-position or 5-position of salicylic acid is replaced with an alkoxy group (-OR), or a salt thereof is used.

In the above general formula (I), the alkyl group (R) constituting the alkoxy group (—OR) is a lower alkyl group having 1 to 6 carbon atoms, and may be either a straight chain or a branched chain. Specifically, a methyl group (corresponding alkoxy group-OR: methoxy group), an ethyl group (same: ethoxy group), a propyl group (same: propoxy group), an isopropyl group (same: isopropoxy group), a butyl group (same: isopropoxy group) The same: butoxy group), isobutyl group (same: isobutoxy group) and the like can be mentioned, but the present invention is not limited thereto.

Specific examples of the alkoxysalicylic acid represented by the general formula (I) include 3-methoxysalicylic acid (2-hydroxy-3-methoxybenzoic acid) and 3-ethoxysalicylic acid (2-hydroxy-3-ethoxybenzoic acid). 4-methoxysalicylic acid (2-hydroxy-4-methoxybenzoic acid), 4-ethoxysalicylic acid (2-hydroxy-4-ethoxybenzoic acid), 4-propoxysalicylic acid (2-hydroxy-4-propoxybenzoic acid), 4-isopropoxysalicylic acid (2-hydroxy-4-isopropoxybenzoic acid), 4-butoxysalicylic acid (2-hydroxy-4-buthoxybenzoic acid), 5-methoxysalicylic acid (2-hydroxy-5-methoxybenzoic acid), 5-ethoxysalicylic acid (2-hydroxy- 5-ethoxybenzoic acid), 5-propoxysalicylic acid (2-hydroxy-5-propoxybenzoic acid) and the like can be mentioned.

Alkoxysalicylic acid is a known substance, and for example, 5-methoxysalicylic acid can be easily synthesized in "Beil 10227" and 4-methoxysalicylic acid can be easily synthesized in "Beil 10379". Further, it is commercially available as a reagent from Aldrich (Germany) and the like, and it is also possible to use this.

The alkoxysalicylic acid also includes a salt thereof, and the type of the salt is not particularly limited as long as it is a pharmaceutically acceptable salt, and for example, an alkali metal salt such as a sodium salt or a potassium salt, a calcium salt or the like, etc. In addition to alkaline earth metal salts, salts such as ammonium salts and amino acid salts can be mentioned. In particular, 4-methoxysalicylic acid potassium salt can be preferably used from the viewpoint of whitening effect and availability.

(A) Alkoxysalicylic acid or a salt thereof may be used alone or in combination of two or more. (A) The blending amount of alkoxysalicylic acid or a salt thereof is preferably 0.001 to 20% by mass, more preferably 0.01 to 10% by mass, and further 0.5 to 3% with respect to the total amount of cosmetics. It is preferably by mass%. (A) When the blending amount of alkoxysalicylic acid or a salt thereof is 0.001% by mass or more, the whitening effect can be more sufficiently exhibited, and when it is 20% by mass or less, it is less sticky. It can be used as a feeling.

(B) Organically modified clay mineral As the (B) organic modified clay mineral contained in the water-in-oil emulsified cosmetic of the present invention, a quaternary ammonium salt compound is added to a natural or synthetic smectite clay mineral such as bentonite. Those added by an ion exchange reaction are suitable. (B) The organically modified clay mineral is not particularly limited as long as it is pharmaceutically acceptable, and for example, dimethyl distearyl ammonium hectorite, dimethyl ammonium hectorite, benzyl dimethyl stearyl ammonium hectorite, and distearyl dimethyl ammonium chloride. Treatments include ammonium aluminum silicate and the like. Commercially available products include dimethyl distearyl ammonium hectorite sold by Elementis under the name "Benton 38VCG" and benzyl dimethylstearyl ammonium hectorite sold by Elementis under the name "Benton 27VCG". It is preferably exemplified.

(B) The organically modified clay mineral may be used alone or in combination of two or more. (B) The blending amount of the organically modified clay mineral is preferably 1.5 to 3% by mass, more preferably 1.8 to 2.8% by mass, based on the total amount of the cosmetic. (B) When the blending amount of the organically modified clay mineral is 1.5% by mass or more with respect to the total amount of cosmetics, the emulsification stability can be improved, and when it is 3% by mass or less. , It is possible to suppress stickiness and obtain a better usability.

(C) Silicone surfactant having an HLB of less than 8 A silicone surfactant having an HLB (Hydrophile-Lipophile Balance) of less than 8 contained in the water-in-oil emulsified cosmetic of the present invention (hereinafter simply referred to as (C) silicone). Examples of the surfactant) include polyoxyalkylene-modified silicone, polyoxyalkylene-alkyl co-modified silicone, polyglycerin-modified silicone, and / or polyglycerin-alkyl co-modified silicone. (C) The silicone surfactant may be used alone or in combination of two or more.

Commercially available products include KF-6017 (PEG-10 dimethicone, manufactured by Shinetsu Chemical Industry Co., Ltd.), KF-6028 (PEG-9 polydimethylsiloxyethyl dimethicone, manufactured by Shinetsu Chemical Industry Co., Ltd.), ABIL EM90 (cetyl PEG / PPG-10). Preferred examples thereof include 1/1 dimethicone, manufactured by Evonik Goldschmidt), KF-6038 (lauryl PEG-9 polydimethylsiloxyethyl dimethicone, manufactured by Shinetsu Silicone), and bisbutyldimethicone polyglyceryl-3.

(C) The blending amount of the silicone surfactant is preferably 0.1 to 8% by mass, more preferably 0.2 to 7% by mass, and further preferably 0.4 to 5% by mass with respect to the total amount of the cosmetic. Is preferable. (C) When the blending amount of the silicone surfactant is 0.1% by mass or more with respect to the total amount of the cosmetic, the emulsification stability can be improved, and when it is 8% by mass or less. , Stickiness can be suppressed and usability can be improved.

(D) Silicone oil of 1000 mPa · S or more The water-in-oil emulsified cosmetic of the present invention contains (D) silicone oil of 1000 mPa · S or more (hereinafter, also simply referred to as (D) silicone oil). By containing (D) silicone oil having a viscosity of 1000 mPa · S or more, it is possible to impart appropriate hardness, and it is possible to make the water-in-oil emulsified cosmetics non-sticky, and further, a rich feeling. It is also possible to improve. In addition, in this specification, "richness" means that after the cosmetic is applied to the skin, there is a residual feeling that the cosmetic covers the skin. Since the water-in-oil emulsified cosmetic of the present invention contains (D) a silicone oil of 1000 mPa · S or more, it is possible to impart appropriate hardness to the water-in-oil emulsified cosmetic even if it does not substantially contain wax. can. Here, substantially free of wax means that the blending amount of wax is less than 1% by mass.

(D) As the silicone oil, methylpolysiloxane, dimethylpolysiloxane (dimethicone), methylphenylpolysiloxane, silicone resin, highly polymerizable gum-like dimethylpolysiloxane, methylhydrogenpolysiloxane, dimethylsiloxane-methyl (polyoxy). It can be used by selecting a silicone oil having a viscosity range as described above from silicone oils such as an ethylene) siloxane copolymer, a methylpolysiloxane emulsion, an alkyl-modified silicone, an amino-modified silicone, and a polyether-modified silicone. Examples of commercially available products include KF-96A-5000cs and KF-96H-10,000cs (manufactured by Shin-Etsu Chemical Co., Ltd.), which are dimethylpolysiloxanes. These (D) silicone oils can be used alone or in combination of two or more.

The viscosity of the silicone oil is preferably 1000 to 15000 mPa · S, more preferably 2000 to 12000 mPa · S, and even more preferably 4000 to 11000 mPa · S. When the viscosity of the silicone oil is 1000 mPa · S or more, an appropriate hardness can be imparted, and when it is 15000 mPa · S or less, the emulsification stability can be further improved.
Here, the viscosity is the viscosity measured by a B-type viscometer at 30 ° C.

The blending amount of the silicone oil (D) is preferably 0.5 to 2.5% by mass, more preferably 0.8 to 2.3% by mass, based on the total amount of the cosmetic. (D) When the blending amount of silicone oil is 0.5% by mass or more with respect to the total amount of cosmetics, more appropriate hardness can be imparted, and when it is 2.5% by mass or less, emulsification is stable. The sex can be made better.

(E) Silicone Elastomer The water-in-oil emulsified cosmetic of the present invention preferably further contains (D) a silicone elastomer. By blending (E) a silicone elastomer, the fit can be further improved. In addition, in this specification, "fitness" means that when a cosmetic is applied, the cosmetic does not continue to grow and does not easily finish, and the cosmetic has a good stop on the skin.

Examples of the silicone elastomer include dimethicone crosspolymer, (dimethicone / phenylvinyldimethicone) crosspolymer, (dimethicone / vinyldimethicone / methicone) crosspolymer, dimethicone / vinyldimethicone) crosspolymer, and (diphenyldimethicone / vinyldiphenyldimethicone). / Silsesquioxane) Cross-linked silicone resin powder such as cross polymer can be mentioned. From the viewpoint of obtaining a better fit, a (dimethicone / phenylvinyl dimethicone) crosspolymer is preferred.
These silicone elastomers may be used alone or in combination of two or more.

(E) The silicone elastomer may be blended in the form of a silicone gel composed of a crosslinked silicone resin powder and a solvent. Commercially available products can be used for such silicone gels, and examples thereof include KSG-15, KSG-18A, and KSG-16 (all manufactured by Shin-Etsu Chemical Co., Ltd.).

(E) The blending amount of the silicone elastomer is preferably 0.1 to 5% by mass, more preferably 0.1 to 4% by mass, still 0.15 to 3% by mass, particularly, with respect to the total amount of the cosmetic. Is preferably 0.15 to 2% by mass. (E) When the blending amount of the silicone elastomer is 0.1% by mass or more with respect to the total amount of the cosmetic, the stickiness can be further suppressed, and when it is 5% by mass or less, the emulsification is improved. be able to.

(F) Silicone film agent The water-in-oil emulsified cosmetic of the present invention preferably further contains (F) a silicone film agent. (F) By containing a silicone film agent, a water-in-oil emulsified cosmetic having a better fit can be obtained. As the (F) silicone film agent, trimethylsiloxysilicic acid, siliconeized pullulan, (Acrylate / dimethicone) copolymer, silsesquinonsan-based, etc. can be preferably mentioned, and a better fit can be obtained. Is preferably trimethylsiloxysilicic acid or siliconeized pullulan.
These silicone-based coating agents may be used alone or in combination of two or more.

Examples of commercially available products include X-21-5250 (manufactured by Shin-Etsu Chemical Co., Ltd., 50% decamethylcyclopentasiloxane solution), X-21-5250L (manufactured by Shin-Etsu Chemical Co., Ltd., 50% dimethicone solution), and X. -21-5616 (Shin-Etsu Chemical Co., Ltd., 60% isododecane solution), X-21-5249 (Shin-Etsu Chemical Co., Ltd., 50% decamethylcyclopentasiloxane solution), X-21-5249L (Shin-Etsu Chemical Co., Ltd.) , 50% dimethicone solution), KF-7312 (Shin-Etsu Chemical Co., Ltd., 50% decamethylcyclopentasiloxane solution), KF-7312K (Shin-Etsu Chemical Co., Ltd., 60% dimethicone solution), KF-7312L (Shin-Etsu Chemical Co., Ltd.) KF-7312T (Shin-Etsu Chemical Co., Ltd., 60% methyltrimethicone solution), X-21-5595 (Shin-Etsu Chemical Co., Ltd., 60% isododecane solution), KF-9821 (Shin-Etsu Chemical Co., Ltd.) Chemical Industry Co., Ltd., 50% decamethylcyclopentasiloxane solution), KF-9021L (Shin-Etsu Chemical Co., Ltd., 50% dimethicone solution), MQ-1600 Solid Resin (Toredau Silicone Co., Ltd., 100% pure content), Wacker -Belsil TMS803 (manufactured by Asahi Kasei Wacker Silicone Co., Ltd., 100% pure content) and the like can be preferably mentioned.

In silicone-ized pullulan, the binding ratio of the silicone compound to the reactive functional group of pullulan varies depending on the type, but usually, the average number of bonds (substitution degree) of the silicone compound per unit of the constituent sugar of the polysaccharide compound is 0.5 to. It is preferably 3.0. In the present invention, the degree of substitution is converted from the Si content (mass%) in the compound.
In addition, when blending silicone-ized pullulan, it is possible to improve the ease of blending and the usability by dissolving it in low molecular weight silicone oil or light isoparaffin.

The siliconeized pullulan is preferably tri (trimethylsiloxy) silylpropylcarbamide pullulan.
As the silicone-ized pullulan, those manufactured by a known production method can be used (for example, Japanese Patent Application Laid-Open No. 10-29910).
As commercially available products, for example, TSPL-30-ID (tri (trimethylsiloxy) silylpropylcarbamide pullulan, manufactured by Shinetsu Chemical Industry Co., Ltd., 30% isododecane solution), TSPL-30-D5 (tri (trimethylsiloxy) silyl). Pullulan propylcarbamide, manufactured by Shin-Etsu Chemical Industry Co., Ltd., 30% decamethylcyclopentasiloxane solution) can be mentioned.

(F) The blending amount of the silicone film agent is preferably 0.05 to 5% by mass, more preferably 0.1 to 3% by mass, and further preferably 0.5 to 2% by mass with respect to the total amount of the cosmetic. It is preferable to have. (F) When the blending amount of the silicone film agent is 0.05% by mass or more with respect to the total amount of cosmetics, a better fit can be obtained, and when it is 5% by mass or less, stickiness is suppressed. It is possible to obtain a better usability.

The water-in-oil emulsified cosmetic of the present invention has a hardness of 11 or more measured with a leometer (manufactured by Fudo Kogyo Co., Ltd .: NRM-3002D; diameter 8.0 mm, 10 mm needle included) in an atmosphere of 25 ° C. It is preferably 11.5 or more, and more preferably 12 or more. By having such an appropriate hardness, it is possible to maintain an appropriate hardness without flowing even if it is filled in a jar, for example. Further, by having an appropriate hardness, it is possible to improve the rich feeling when the cosmetic is applied. Here, the "rich feeling" means a feeling of being thick and chewy and moderately responsive during application of cosmetics.

In addition to the above essential ingredients, the water-in-oil emulsified cosmetic of the present invention includes ingredients usually used for external skin preparations such as cosmetics and pharmaceuticals, for example, other whitening agents, as long as the effects of the present invention are not impaired. In addition to moisturizers and antioxidants, oily components other than (D) silicone oil, ultraviolet absorbers, surfactants other than (C) silicone surfactants, moisturizers, thickeners, alcohols, and powder components , Coloring material, aqueous component, water, various skin nutrients and the like can be appropriately blended as needed.

Examples of oily components include camellia oil, macadamia nut oil, olive oil, paraffin oil, safflower oil, soybean oil, tea seed oil, cacao butter, palm oil, hardened palm oil, palm oil, mokurou, hardened sunflower oil, and beeswax. Natural fats and oils such as candelilla wax, carnauba wax, lanolin, liquid lanolin, jojobaro, hard lanolin, polyoxyethylene lanolin alcohol ether, polyoxyethylene cholesterol ether, liquid paraffin, ozokelite, squalane, paraffin, ceresin, vaseline, microcrystallin wax, etc. Hydrocarbon oils and fats, isopropyl myristate, octyldodecyl myristate, isopropyl palmitate, cholesteryl 12-hydroxystearate, ethylene glycol di-2-ethylhexylate, dipentaerythritol fatty acid ester, pentaerythritol tetra-2-ethylhexylate. , Tri-2-ethylhexyl glycerin, trimethylolpropane triisostearate, cetyl-2-ethylhexanoate, synthetic oily components such as paraffin oil fatty acid methyl ester, dimethylpolysiloxane, methylphenylpolysiloxane, methylhydrogenpolysiloxane Such as chain polysiloxane, decamethylpolysiloxane, dodecamethylpolysiloxane, tetramethyltetrahydrogenpolysiloxane and other cyclic polysiloxanes and the like can be mentioned.

Examples of the ultraviolet absorber include benzoic acid-based ultraviolet absorbers such as paraaminobenzoic acid, paraaminobenzoic acid monoglycerin ester, N, N-dipropoxyparaaminobenzoic acid ethyl ester, and N, N-dimethylparaaminobenzoic acid ethyl ester. Anthranilic acid-based UV absorbers such as homomentyl-N-acetylanthranilate, salicylic acid-based UV absorbers such as amilsalicylate, homomentyl salicylate, octyl salicylate, phenyl salicylate, benzyl salicylate, p-isopropanol phenyl salicylate, octyl cinnamate, Ethyl-4-isopropyl cinnamate, methyl-2,5-diisopropyl cinnamate, ethyl-2,4-diisopropyl cinnamate, propyl-p-methoxy cinnamate, isoamyl-p-methoxy cinnamate, octyl-p-methoxy cinnamate Methyl (2-ethylhexyl-p-methoxysinamate), 2-ethoxyethyl-p-methoxysinamate, 2-ethylhexyl-α-cyano-β-phenylsinamate, glycerylmono-2-ethylhexanoyl-di-p -Ceramic acid-based ultraviolet absorbers such as methoxycinnamate, 2,4-dihydroxybenzophenone, 2,2'-dihydroxy-4-methoxybenzophenone, 2,2', 4,4'-tetrahydroxybenzophenone, 2-hydroxy- Benzophenone-based ultraviolet absorbers such as 4-methoxybenzophenone, 2-hydroxy-4-methoxybenzophenone-5-sulfonate, 4-phenylbenzophenone, 2-ethylhexyl-4'-phenylbenzophenone-2-carboxylate, 3-( 4'-Methylbenziliden) -d, l-camper, 3-benziliden-d, l-camper, urocanic acid, urocanic acid ethyl ester, 2,2'-hydroxy-5-methylphenylbenzotriazole, 2- (2' -Hydroxy-5'-t-octylphenyl) benzotriazole, dibenzalazine, dianisoylmethane, 4-methoxy-4'-t-butyldibenzoylmethane, 5- (3,3-dimethyl-2-norbornylidene) -3- Pentan-2-on and the like can be mentioned.

The water-in-oil emulsified cosmetic of the present invention may contain a surfactant other than (C) a silicone surfactant, but the surfactant containing (C) a silicone surfactant contained in the cosmetic (C) It is preferable to mix all the surfactants contained in the cosmetics so that the weighted average HLB is less than 8.

Examples of the lipophilic nonionic surfactant include sorbitan monooleate, sorbitan monoisostearate, sorbitan monolaurate, sorbitan monopalmitate, sorbitan monostearate, sorbitan sesquioleate, and penta-2-ethylhexylate. Sorbitane fatty acid esters such as diglycerol sorbitan, glycerin monostearate, glycerin α, α'-pyroglutamate oleate, glycerin monostearic acid ester, glycerin or polyglycerin esters, polyethylene glycol fatty acid ester, monosteare Examples thereof include propylene glycol fatty acid esters such as propylene glycol acid, cured castor oil derivatives, and glycerin alkyl ethers. Of these, PEG-8 diisostearate, which is a polyethylene glycol fatty acid ester, is preferable.

Examples of the hydrophilic nonionic surfactant include polyoxyethylene sorbitan fatty acid esters such as polyoxyethylene sorbitan monooleate and polyoxyethylene sorbitan monostearate, polyoxyethylene sorbit monolaurate, and polyoxyethylene sorbit. Polyoxyethylene sorbit fatty acid esters such as monooleate and polyoxyethylene sorbit monostearate, polyoxyethylene glycerin monostearate, polyoxyethylene glycerin monoisostearate, polyoxyethylene glycerin triisostearate, etc. Polyoxyethylene fatty acid esters such as oxyethylene glycerin fatty acid ester, polyoxyethylene monooleate, polyoxyethylene distearate, polyoxyethylene lauryl ether, polyoxyethylene oleyl ether, polyoxyethylene stearyl ether, polyoxyethylene -2-Polyoxyethylene alkyl ethers such as octyldodecyl ether and polyoxyethylene cholestanol ether, polyoxyethylene alkyl such as polyoxyethylene octylphenyl ether, polyoxyethylene nonylphenyl ether and polyoxyethylene dinonylphenyl ether. Pluronic type surfactants such as phenyl ethers and pluronic, polyoxyethylene polyoxypropylene cetyl ether, polyoxyethylene polyoxypropylene-2-decyltetradecyl ether, polyoxyethylene polyoxypropylene monobutyl ether, polyoxyethylene polyoxy Polyoxyethylene polyoxypropylene alkyl ethers such as propylene, hydrogenated lanolin, polyoxyethylene polyoxypropylene glycerin ether, tetrapolyoxyethylene / tetrapolyoxypropylene ethylenediamine condensates such as Tetronic, polyoxyethylene castor oil, Polyoxyethylene hydrogenated castor oil, polyoxyethylene cured castor oil monoisostearate, polyoxyethylene cured castor oil triisostearate, polyoxyethylene cured castor oil monopyroglutamic acid monoisostearic acid diester, polyoxyethylene cured castor oil maleine Polyoxyethylene castor oil derivative such as acid ester or polyoxyethylene cured castor oil derivative, palm oil fatty acid diethanolamide, lauric acid mono Alkanolamides such as ethanolamides and fatty acid isopropanolamides, polyoxyethylene propylene glycol fatty acid esters, polyoxyethylene alkylamines, polyoxyethylene fatty acid amides, sucrose fatty acid esters, polyoxyethylene nonylphenylformaldehyde condensates, alkylethoxydimethyl Examples thereof include amine oxide and trioleyl phosphate.

Examples of the anionic surfactant include fatty acid soaps such as sodium laurate and sodium palmitate, higher alkyl sulfate ester salts such as sodium lauryl sulfate and potassium lauryl sulfate, triethanolamine polyoxyethylene lauryl sulfate, and polyoxyethylene lauryl. Alkyl ether sulfate ester salts such as sodium sulfate, N-acylsarcosic acid such as lauroyl sarcosin sodium, N-myristoyl-N-methyl taurine sodium, coconut oil fatty acid methyl taurid sodium, lauryl methyl taurid sodium and other higher fatty acid amide sulfone. Acids, phosphate ester salts such as polyoxyethylene oleyl ether sodium phosphate, polyoxyethylene stearyl ether sodium phosphate, di-2-ethylhexyl sulfosuccinate sodium, monolauroyl monoethanolamide polyoxyethylene sulfosuccinate sodium, lauryl polypropylene Sulfosuccinates such as sodium glycol sulfosuccinate, alkylbenzene sulfonates such as sodium linear dodecylbenzene sulfonate, triethanolamine linear dodecylbenzene sulfonate, monosodium N-lauroyl glutamate, disodium N-stearoyl glutamate and the like. Higher fatty acid ester sulfate ester salts such as acylglutamic acid, hardened coconut oil fatty acid sodium glycerin sulfate, polyoxyethylene alkyl ether carboxylate, α-olefin sulfonate, higher fatty acid ester sulfonate, secondary alcohol sulfate ester salt, higher grade Examples thereof include fatty acid alkyrolamide sulfate ester salt, lauroyl monoethanolamide sodium succinate, N-palmitoyl aspartic acid, ditriethanolamine, coconut oil fatty acid collagen hydrolyzed alkali salt and the like.

Examples of the cationic surfactant include an alkyltrimethylammonium salt such as stearyltrimethylammonium chloride and lauryltrimethylammonium chloride, a dialkyldimethylammonium salt such as distearyldimethylammonium chloride, and poly (N, N'-dimethyl-3,5). , -Methylenepiperidinium), alkylpyridinium salts such as cetylpyridinium chloride, alkylquaternary ammonium salts, alkyldimethylbenzylammonium salts, alkylisoquinolinium salts, dialkylmoriphonium salts, polyoxyethylenealkylamines, alkylamines Examples thereof include salts, polyamine fatty acid derivatives, amylalkol fatty acid derivatives, benzalconium chloride, benzethonium chloride, cationic polymers, β-NN-dimethyl-N-ethylammonioethyl vinylpyrrolidone chloride copolymers and the like.

Examples of the amphoteric surfactant include 2-undecyl-N, N, N,-(hydroxyethylcarboxymethyl) -2-imidazolin sodium, 2-cocoyl-2-imidazolinium hydroxyside-1-carboxyethyroxy 2. Imidazoline-based amphoteric surfactant such as sodium salt, 2-heptadecyl-N-carboxymethyl-N-hydroxyethyl imidazolinium betaine, lauryldimethylaminoacetic acid betaine, alkylbetaine, amide betaine, sulfobetaine and other betaine-based amphoteric surfactants Agents and the like can be mentioned.

Examples of the moisturizer include cholesteryl-12-hydroxystearate, sodium lactate, dl-pyrrolidone carboxylate, urea, diglycerin ethylene oxide / propylene oxide adduct, and the like, and in particular, acidity such as chondroitin sulfate and hyaluronic acid. When a mucopolysaccharide is added, it has an enhancing effect on the whitening effect of alkoxysalicylic acid and / or a salt thereof.

Examples of the thickener include Arabic gum, carrageenan, tragant gum, quince seed (malmero), casein, sodium caseinate, dextrin, gelatin, sodium alginate, methylcellulose, ethylcellulose, carboxymethylcellulose, hydroxyethylcellulose, hydroxypropylcellulose, polyvinyl alcohol, etc. Examples thereof include sodium polyacrylate, carboxyvinyl polymer, guar gum, and xanthan gum.

Examples of the polyhydric alcohol include ethylene glycol, propylene glycol, dipropylene glycol, 1,3-butylene glycol, glycerin, erythritol, trimethylolpropane, pentaerythritol, sorbitol, maltitol, diglycerin, polyethylene glycol and the like. ..

Examples of higher alcohols include lauryl alcohol, stearyl alcohol, behenyl alcohol, myristyl alcohol, oleyl alcohol, cetostearyl alcohol, monostearyl glycerin ether (batyl alcohol), lanolin alcohol, cholesterol, phytosterol, isostearyl alcohol, octyldodecanol and the like. Can be mentioned.

Examples of the powder component include talc, kaolin, mica, silk mica (serisite), gold mica, synthetic mica, magnesium carbonate, calcium carbonate, aluminum silicate, silica, zeolite, barium sulfate, calcined calcium sulfate (baked sekko). , Calcium phosphate, fluoroapatite, hydroxyapatite, ceramic powder, metal soap (zinc myristate, calcium palmitate, aluminum stearate, etc.), inorganic powder such as boron nitride, polyamide resin powder (nylon powder), polyethylene powder, polymethacrylic acid Methyl powder, polystyrene powder, styrene and acrylic acid copolymer resin powder, polymethicylsesquioxane powder, organic powder such as cellulose powder, titanium dioxide, zinc oxide, iron oxide (Bengala), iron titanate, yellow oxidation Iron, black iron oxide, carbon black, low-order titanium oxide, mango violet, cobalt violet, chromium oxide, ultramarine, dark blue and other inorganic pigments, titanium oxide coated mica, titanium oxide coated bismuth oxychloride, colored titanium oxide coated Mica, bismuth oxychloride, pearl pigments such as fish scale foil, metal powder pigments such as aluminum powder, organic pigments such as red 201, red 202, orange 203, yellow 205, yellow 401, blue 404, red Examples thereof include organic pigments such as zirconium, barium and aluminum lake such as No. 3, yellow No. 4, green No. 3 and blue No. 1, and natural pigments such as chlorophyll and β-carotene. Examples of the synthetic resin emulsion include an acrylic resin emulsion and a polyvinyl acetate resin emulsion.

Examples of amino acids include glycine, leucine, phenylalanine, tyrosine, aspartic acid, glutamic acid, sodium glutamate, arginine, histidine, lysine, cystine, cysteine, acylsarcosin sodium (lauroylsarcosin sodium), acylglutamate, glutathione, pyrrolidonecarboxylic acid and the like. Can be mentioned.

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. Can be mentioned.

Other metal sequestering agents such as disodium edetate, trisodium edetate, sodium citrate, sodium polyphosphate, sodium metaphosphate, gluconic acid, caffeine, tannin, verapamil, tranexamic acid and its derivatives, licorice extract, glabridin , Hot water extract of fire spine fruit, various crude drugs, tocopherol acetate, glycyrrhizinic acid and drugs such as glycyrrhizinic acid and its derivatives or salts thereof, vitamin C, magnesium ascorbic acid phosphate, ascorbic acid glucoside, arbutin, kodiic acid and the like. Whitening agents, glucose, fructose, mannose, sucrose, trehalose and other sugars can also be added as appropriate, and especially when vitamin E esters such as tocopherol acetate are added, alkoxysalicylic acid and / or its salts are whitened. Has an effect enhancing effect.

The water-in-oil emulsified cosmetic of the present invention can be provided as various dosage forms such as liquid, milky liquid, cream, gel, and bavarois.
Further, the water-in-oil emulsified cosmetic of the present invention shall be provided as a milky lotion, a skin care cream, a sunscreen cosmetic, a cosmetic containing a coloring agent, various foundations such as liquids and creams, a makeup base, and a BB cream. Can be done.

Hereinafter, the present invention will be described in more detail by way of examples, but the present invention is not limited to these examples. In addition, the blending amount in the following examples and the like indicates mass% unless otherwise specified.
A water-in-oil emulsified cosmetic having the composition shown in Table 1 below was prepared by a conventional method and evaluated according to the following criteria.

(hardness)
The hardness of the prepared water-in-oil emulsified cosmetic was measured with a leometer (manufactured by Fudo Kogyo Co., Ltd .: NRM-3002D; diameter 8.0 mm, 10 mm needle included) in an atmosphere of 25 ° C, and the following criteria were used. Evaluated in.
A: 12 or more B: 10 or more and less than 12 C: 9 or more and less than 10 D: less than 9

(Rich feeling)
The prepared water-in-oil emulsified cosmetic was used by 10 specialized panelists, and the richness after application was evaluated according to the following criteria.
<Evaluation criteria>
A: 9 or more people evaluated it as rich B: 6-8 people evaluated it as rich C: 5 or less evaluated it as rich

(Fitness)
The prepared water-in-oil emulsified cosmetic was used by 10 specialized panelists, and the fit when applied was evaluated according to the following criteria.
<Evaluation criteria>
A +: 9 or more people evaluated that there was a fit A: 6 to 8 people evaluated that there was a fit B: 4 to 5 people or less evaluated that there was a fit C: 3 or less people evaluated that there was a fit Evaluated that there is

(Emulsification stability)
The prepared water-in-oil emulsified cosmetic was filled in a 50 mL jar container (made of resin), left at room temperature at 50 ° C. for 4 weeks, and then the emulsified state was examined with the naked eye and a microscope based on the following evaluation criteria. Evaluated.
<Evaluation criteria>
A: Not separated at all and the emulsified particles are stable B: Not separated but the emulsified particles are partially broken C: Not separated but the emulsified particles are broken D: Separated The emulsified particles are also broken

As shown in Table 1, the water-in-oil emulsified cosmetics of Examples 1 to 6 containing silicone oil of 1000 mPa · S or higher have higher hardness than Comparative Example 1 containing only silicone oil having a low viscosity. The richness was good. Further, in Examples 5 and 6 containing (E) a silicone elastomer and (F) a silicone film agent, the fit was better.

Claims (7)

(A) Alkoxysalicylic acid represented by the following general formula (I) or a salt thereof, and

(In formula (I), R represents a lower alkyl group having 1 to 6 carbon atoms)
(B) Organic modified clay minerals and
(C) A silicone surfactant having an HLB of less than 8 and
(D) Silicone oil of 1000 mPa · S or more and
Water-in-oil emulsified cosmetics containing. (E) The water-in-oil emulsified cosmetic according to claim 1, further comprising (E) a silicone elastomer. The water-in-oil emulsified cosmetic according to claim 1 or 2, further comprising (F) a silicone film agent. The water-in-oil emulsified cosmetic according to claim 1, 2 or 3, wherein the silicone oil (D) is 0.5 to 2.5% by mass based on the total amount of the cosmetic. The water-in-oil emulsified cosmetic according to any one of claims 1 to 4, wherein the (A) alkoxysalicylic acid or a salt thereof is a 4-methoxysalicylic acid potassium salt. The water-in-oil emulsified cosmetic according to any one of claims 1 to 5, wherein the organically modified clay mineral (B) is 1.5 to 3% by mass with respect to the total amount of the cosmetic. The water-in-oil emulsified cosmetic according to any one of claims 1 to 6, wherein the (B) organically modified clay mineral is dimethyl distearyl ammonium hectorite.