Organopolysiloxanes having (poly)glycerin groups and polyoxyalkylene groups, treated hydrophobic powders, and dispersions and cosmetics

Abstract

Provided are: an organopolysiloxane that, when used to treat a hydrophobic powder, imparts excellent dispersibility in water to the treated hydrophobic powder; a treated hydrophobic powder; a dispersion; and a cosmetic.　The organopolysiloxane contains a (poly)glycerin group and a polyoxyalkylene group.

Description

Technical Field

[0001] The present invention relates to an organopolysiloxane having a (poly)glycerin group and a polyoxyalkylene group, a treated hydrophobic powder treated with this organopolysiloxane, and a dispersion and a cosmetic containing the same.

Background Art

[0002] Oil-in-water emulsified cosmetics have a tendency to be preferred in recent years because the continuous phase is water, so they can give a fresh and refreshing feeling of use. In general, various powders are blended in cosmetics for the purpose of improving the feeling of use and the ultraviolet scattering effect. However, since the powder blended in the aqueous phase of oil-in-water emulsified cosmetics is hydrophilic, the cosmetic film of this cosmetic is weak against moisture such as sweat and has a problem with water resistance.

[0003] As a countermeasure, consideration has been given to blending an oil-treated hydrophobic powder in the aqueous phase. This is because not only the water resistance of the cosmetic film is improved, but also the moisture in the continuous phase is likely to volatilize, so there is an advantage that the adhesion to the skin is improved compared to the case where the hydrophobic powder is blended in the oil phase. For example, a technique of blending a hydrophobic powder in an aqueous phase by using a polyoxyalkylene-modified silicone as a powder dispersant has been reported (Patent Document 1: Japanese Patent Application Laid-Open No. 2018-024881). However, it is difficult to disperse hydrophobic powder in water, and the powder in the aqueous phase aggregates over time, resulting in problems with usability and the feeling of use. In addition, techniques for ensuring dispersion stability by blending a water-swellable substance or a water-soluble polymer compound have been reported (Patent Document 2: International Publication No. 2016 / 056589, Patent Document 3: Japanese Patent Application Laid-Open No. 2017-137252). However, when a sufficient amount of a water-swellable substance or a water-soluble polymer compound is blended to ensure stability, there is a problem that the stickiness on the skin increases and the feeling of use deteriorates. In addition, when the content of the hydrophobic powder is high, there is also a problem that the viscosity of the dispersion is high and the usability is poor.

[0004] Furthermore, a technique of using a carboxylic acid-modified silicone as a dispersant has also been reported (Patent Document 4: Japanese Patent Application Laid-Open No. 2018-115211). However, it cannot suppress thickening over time, and since it is necessary to keep the pH of the dispersion neutral to alkaline, there are limitations in the formulation of cosmetics.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Patent Document 2

Patent Document 3

Patent Document 4

Summary of the Invention

Problems to be Solved by the Invention

[0006] The present invention has been made in view of the above circumstances, and an object thereof is to provide an organopolysiloxane in which the treated hydrophobic powder is well dispersed in water, a treated hydrophobic powder, a dispersion, and a cosmetic by treating a hydrophobic powder.

[0007] As a result of intensive studies to achieve the above object, the present inventors have found that by using a treated hydrophobic powder obtained by treating a hydrophobic powder with an organopolysiloxane having a (poly)glycerin group excellent in adsorptivity to powder and a polyoxyalkylene group excellent in compatibility with an aqueous phase, the hydrophobic powder is well dispersed in water, and the dispersion containing the same has low viscosity and excellent stability over time. Furthermore, since the hydrophobic powder is well dispersed, the dispersion, the treated hydrophobic powder, and the cosmetic containing the dispersion are fresh and excellent in usability, and the film (cosmetic film) formed on the skin is excellent in uniformity because the hydrophobic powder is well dispersed, and excellent in water resistance because the hydrophobic powder is contained, leading to the completion of the present invention.

[0008] Accordingly, the present invention provides an organopolysiloxane having the following (poly)glycerin group and polyoxyalkylene group, a treated hydrophobic powder, as well as a dispersion and a cosmetic. 1. The following compositional formula (1)

Chemical formula

Chemical formula

Chemical formula

Chemical formula

Advantages of the Invention

[0009] By using the treated hydrophobic powder treated with the organopolysiloxane having a (poly)glycerin group and a polyoxyalkylene group of the present invention, the hydrophobic powder can be well dispersed and blended in water. Further, the dispersion containing this is low in viscosity and excellent in stability over time, and the dispersion, the treated hydrophobic powder, and the cosmetic containing the dispersion are fresh and excellent in usability, and a film (cosmetic film) excellent in water resistance can be formed on the skin.

Mode for Carrying Out the Invention

[0010] Hereinafter, the present invention will be described in detail. [Component (A)] Component (A) has the following compositional formula (1)

Chem.

Chem.

Chem.

Chem.

[0011] R 1 is independently a monovalent hydrocarbon group selected from an alkyl group having 1 to 5 carbon atoms, an aryl group having 6 to 15 carbon atoms, and an aralkyl group having 7 to 15 carbon atoms. Specifically, alkyl groups such as methyl group, ethyl group, propyl group, butyl group, pentyl group, cycloalkyl groups such as cyclopentyl group, aryl groups such as phenyl group, tolyl group, and aralkyl groups such as benzyl group, phenethyl group, etc. may be mentioned. Different ones may be contained in one molecule respectively. R 1 is preferably a methyl group.)

[0012] R 2 is an alkyl group having 6 to 20 carbon atoms, which may be linear or branched, and different ones may be contained in one molecule respectively. Specifically, hexyl group, heptyl group, octyl group, nonyl group, decyl group, dodecyl group, tetradecyl group, hexadecyl group, etc. may be mentioned. R 2 can be appropriately selected according to the type of the surface treatment agent for the hydrophobic powder described later. Among them, from the viewpoint of compatibility with the surface of the hydrophobic powder, dodecyl group and hexadecyl group are preferable, and dodecyl group which is an alkyl group having 12 carbon atoms is more preferable. When the organopolysiloxane has R 2 when having, R 2is preferably 5 to 40% by mass, more preferably 10 to 30% by mass, based on the total mass of the organopolysiloxane.

[0013] R 3 is a (poly)glycerin group represented by the following general formula (2)

Chemical formula

[0014]

Chemical formula

[0015] R 4 is the following general formula (3)

Chemical formula

[0016] R 6 is a hydrogen atom or a hydrocarbon group having 1 to 30 carbon atoms. Specifically, -(CH2)2-, -(CH2)3-, -CH2CH(CH3)CH2-, -(CH2)4-, -(CH2)5-, -(CH2)6-, -(CH2)7-, -(CH2)8-, -(CH2)2-CH(CH2CH2CH3)-, -CH2-CH(CH2CH3)-, etc. can be exemplified. j is an integer satisfying 0 ≦ j ≦ 20, and 1 ≦ j ≦ 5 is preferable. k1 satisfies 2 ≦ k1 ≦ 100, 2 ≦ k1 ≦ 50 is preferable, and 2 ≦ k1 ≦ 15 is more preferable. k2 satisfies 0 ≦ k2 ≦ 100, 0 ≦ k2 ≦ 50 is preferable, and 0 ≦ k2 ≦ 5 is more preferable. When the organopolysiloxane of the present invention is used as a dispersant for dispersing hydrophobic powder in an aqueous phase, R 4 is preferably 20 to 70% by mass, and more preferably 40 to 60% by mass, based on the total mass of the organopolysiloxane.)

[0017] R 5 is represented by the following general formula (4), (5), (6) or (7)

Chemical formula

[0018] When using the component (A) as a dispersant, in the above compositional formula (1), the ratio represented by (c / d) is preferably 0.1 ≦ (c / d) ≦ 1.5, and more preferably 0.2 ≦ (c / d) ≦ 0.8. By setting the ratio c / d to 0.1 or more, the adsorption of the organopolysiloxane onto the surface of the hydrophobic powder is further improved. By setting the ratio c / d to 1.5 or less, an increase in the viscosity of the organopolysiloxane is suppressed, and the usability and dispersibility are further improved.

[0019] The organopolysiloxane (A) of the present invention is synthesized by a hydrosilylation reaction between a rhodium hydropolysiloxane having a hydrosilyl group as a reactive active point and a compound having an alkenyl group (carbon-carbon unsaturated bond) shown below at the terminal. A known method can be adopted for the hydrosilylation reaction. The composition of (A) can be adjusted and manufactured according to the raw materials used and their blending amounts.

Chemical formula

[0020] [Treated hydrophobic powder treated with organopolysiloxane (A)] The treated hydrophobic powder of the present invention is a treated hydrophobic powder treated with the above organopolysiloxane (A), and the above component (A) can be used as a dispersant for the component (B). Examples of the treatment method include a method of mixing the organopolysiloxane (A) and the hydrophobic powder (B), and a method of preparing the following dispersion. The mixing is not particularly limited, and the temperature, mixing time, mixing method, etc. can be appropriately selected. When mixing, a polyhydric alcohol (D) such as 1,3-butylene glycol may be used, or other surfactants may be used.

[0021] (B) The treatment amount of (A) organopolysiloxane with respect to the hydrophobic powder is preferably such that the (A) / (B) mass ratio is 0.01 to 1, more preferably 0.02 to 0.5.

[0022] [Component (B)] Component (B) of the present invention is a hydrophobic powder. As the (B) hydrophobic powder of the present invention, any shape such as spherical, spindle-shaped, needle-shaped, and plate-shaped, particle diameter such as aerosol, fine particles, and pigment grade, and particle structure such as porous and non-porous may be used as long as it is used in ordinary cosmetics. The hydrophobic powder can be used alone or in combination of two or more.

[0023] (B) The hydrophobic powder is obtained by surface-treating the surface of the raw material powder serving as the base particles with a hydrophobizing agent. However, when the surface of the untreated raw material powder is hydrophobic, it may be used without hydrophobizing treatment. In the present invention, the "hydrophobicity" of the (B) hydrophobic powder means that it does not disperse in water.

[0024] Examples of the raw material powder serving as the base particles of the hydrophobic powder include fine particle metal oxide powder, coloring pigment, inorganic powder, metal powder, organic powder, inorganic-organic composite powder, and the like.

[0025] Examples of the fine particle metal oxide include one or more selected from fine particle titanium dioxide (display name (INCI: Titanium Dioxide)), iron-containing titanium dioxide, zinc oxide (display name (INCI: Zinc Oxide)), cerium oxide (display name (INCI: Cerium Oxide)), and composites thereof. These metal oxides may also be composite powders with other powders.

[0026] The coloring pigment is not particularly limited as long as it is a pigment usually used for coloring cosmetics, and includes red iron oxide (display name (INCI: Iron Oxides)), yellow iron oxide (display name (INCI: Iron Oxides)), white titanium dioxide (display name (INCI: Titanium Dioxide)), black iron oxide (display name (INCI: Iron Oxides)), ultramarine (display name (INCI: Ultramarines)), Prussian blue (display name (INCI: Ferric Ferrocyanide, Ferric Ammonium Ferrocyanide)), manganese violet (display name (INCI: Manganese Violet)), cobalt titanate (display name (INCI: Cobalt Titanium Oxide)), chromium hydroxide green (display name (INCI: Chromium Hydroxide Green)), chromium oxide green (display name (INCI: Chromium Oxide Greens)), oxidation (Al / cobalt) (display name (INCI: Cobalt Aluminum Oxide)), cobalt titanate (display name (INCI: Cobalt Titanium Oxide)), (titanium / titanium dioxide) fired product (display name (INCI: Titanium / Titanium Dioxide)), lithium cobalt titanate (display name (INCI: Lithium Cobalt Titanate)), cobalt titanate (display name (INCI: Cobalt Titanium Oxide)), (iron oxide / titanium dioxide) sintered product (display name (IRON OXIDE / TITANIUM DIOXIDO SINTER)), composite doped with different metals such as iron oxide doped titanium dioxide (display name (INCI: Iron Oxides, Titanium Dioxide)), titanium nitride (display name (INCI: Titanium Nitride)), ferrous hydroxide (display name (INCI: Iron Hydroxide)), inorganic brown pigments such as γ-iron oxide, inorganic yellow pigments such as loess, lake pigments obtained by lakeifying tar pigments, lake pigments obtained by lakeifying natural pigments, and other colored pigments, and any of them can be used.

[0027] As for the coloring pigment, from the viewpoint of hiding power, a pigment having a particle diameter, that is, a volume average particle diameter in the range of 150 to 600 nm is preferable. The volume average particle diameter can be measured by TEM or the like. If it is less than 150 nm, the hiding power is low, so the coloring efficiency of the cosmetic may be reduced. If it is larger than 600 nm, the usability may deteriorate. Further, the pigment according to the present invention may be partially or entirely surface-treated with an inorganic compound such as alumina (display name (INCI: Alumina)), aluminum hydroxide (display name (INCI: Aluminum Hydroxide)), silica (display name (INCI: Silica)), hydrated silica (display name (INCI: Hydrated Silica)).

[0028] Examples of the inorganic powder include zirconium dioxide (display name (INCI: Zirconium Dioxide)), zinc oxide (display name (INCI: Zinc Oxide)), cerium oxide (display name (INCI: Cerium Oxide)), magnesium oxide (display name (INCI: Magnesium Oxide)), barium sulfate (display name (INCI: Barium Sulfate)), calcium sulfate (display name (INCI: Calcium Sulfate)) Magnesium Sulfate (INCI name: Magnesium Sulfate), Calcium Carbonate (INCI name: Calcium Carbonate), Magnesium Carbonate (INCI name: Magnesium Carbonate), Talc (INCI name: Talc), Cleaved Talc (INCI name: Talc), Mica (INCI name: Mica), Kaolin (INCI name: Kaolin), Sericite (INCI name: Mica), Synthetic Fluorphlogopite (INCI name: Synthetic Fluorphlogopite), Biotite (INCI name: Biotite), Potassium Silicate (INCI name: Potassium Silicate), Silica (INCI name: Silica), Fumed Silica, Aluminum Silicate (INCI name: Aluminum Silicate), Magnesium Silicate (INCI name: Magnesium Silicate), Magnesium Aluminum Silicate (INCI name: Magnesium Aluminum Silicate), Calcium Silicate (INCI name: Calcium Silicate), Aluminum Calcium Sodium Silicate (INCI name: Aluminum Calcium Sodium Silicate), Lithium Magnesium Sodium Silicate (INCI name: Lithium Magnesium Sodium Silicate), Sodium Magnesium Silicate (INCI name: Sodium Magnesium Silicate), Calcium Aluminum Borosilicate (INCI name: Calcium Aluminum Borosilicate), Calcium SodiumParticles composed of, for example, borosilicate (designated name (INCI: Borosilicate)), hydroxyapatite (designated name (INCI: Hydroxyapatite)), bentonite (designated name (INCI: Bentonite)), montmorillonite (designated name (INCI: Montmorillonite)), hectorite (designated name (INCI: Hectorite)), zeolite (designated name (INCI: Zeolite)), alumina (designated name (INCI: Alumina)), aluminum hydroxide (designated name (INCI: Aluminum Hydroxide)), boron nitride (designated name (INCI: Boron Nitride)), glass (designated name (INCI: Glass)), etc. can be mentioned. Further, as inorganic colored pearl pigments, pearl agents such as mica coated with titanium dioxide, bismuth oxychloride (designated name (INCI: Bismuth Oxychloride)), bismuth oxychloride (designated name (INCI: Bismuth Oxychloride)) coated with titanium dioxide (designated name (INCI: Titanium Dioxide)), talc (designated name (INCI: Talc)) coated with titanium dioxide (designated name (INCI: Titanium Dioxide)), fish scale foil, pearl pigments such as colored mica coated with titanium dioxide (designated name (INCI: Titanium Dioxide)) can be mentioned.

[0029] Examples of the metal powder include metal fine particles composed of, for example, aluminum (designated name (INCI: Aluminum Powder)), copper (designated name (INCI: Copper Powder)), silver (designated name (INCI: Silver Powder)), etc.

[0030] Examples of the organic powder include powders composed of silicone, polyamide, polyacrylic acid·acrylic acid ester, polyester, polyethylene, polypropylene, polystyrene, styrene·acrylic acid copolymer, divinylbenzene·styrene copolymer, polyurethane, vinyl resin, urea resin, melamine resin, benzoguanamine, polymethylbenzoguanamine, tetrafluoroethylene, polymethyl methacrylate (e.g., polymethyl methacrylate, etc.), cellulose, silk, nylon, phenol resin, epoxy resin, polycarbonate, etc. In particular, examples of silicone include silicone resin particles (specific examples include polymethylsilsesquioxane (display name (INCI: Polymethylsilsesquioxane)), etc.) and silicone resin-coated silicone rubber powder (specific examples include (vinyldimethylsilicone / methylsilsesquioxane) crosspolymer (display name (INCI: Vinyl Dimethicone / Methicone Silsesquioxane Crosspolymer)), (diphenyldimethylsilicone / vinyldiphenyldimethylsilicone / silsesquioxane) crosspolymer (display name (INCI: Diphenyl Dimethicone / Vinyl Diphenyl Dimethicone / Silsesquioxane Crosspolymer)), polysilicone-1 crosspolymer (display name (INCI: Polysilicone-1 Crosspolymer)), polysilicone-22 (display name (INCI: Polysilicone-22)), etc.). Also, metal soaps, etc. can be mentioned, and specific examples include zinc stearate (display name (INCI: Zinc Stearate)), aluminum stearate (display name (INCI: Aluminum Stearate)), calcium stearate (display name (INCI: Calcium Stearate)), magnesium stearate (display name (INCI: Magnesium Stearate)), zinc myristate (display name (INCI: Zinc Myristate)), magnesium myristate (display name (INCI: Magnesium Myristate)), cetyl phosphate (zinc / Na) (display name (INCI: Sodium Zinc CetylPowders composed of, for example, potassium cetyl phosphate (display name (INCI: Potassium Cetyl Phosphate)) can also be mentioned. Furthermore, organic dyes and the like can also be mentioned. Specific examples include Red 3, Red 104(1) (display name (INCI: Red 28, Red 28 Lake)), Red 106, Red 201 (display name (INCI: Red 6)), Red 202 (display name (INCI: Red 7)), Red 204, Red 205, Red 220 (display name (INCI: Red 34)), Red 226 (display name (INCI: Red 30)), Red 227 (display name (INCI: Red 33, RED 33 Lake)), Red 228 (display name (INCI: Red 36)), Red 230(1) (display name (INCI: Red 22, Red 22 Lake)), Red 230(2), Red 401, Red 505, Yellow 4 (display name (INCI: Yellow 5)), Yellow 5 (display name (INCI: Yellow 6, Yellow 6 Lake)), Yellow 202(1) (display name (INCI: Yellow 8)), Yellow 203 (display name (INCI: Yellow 10, Yellow 10 Lake)), Yellow 204 (display name (INCI: Yellow 11)), Yellow 401 (display name (INCI:)), Blue 1 (display name (INCI: Blue 1, Blue 1 Lake)), Blue 2, Blue 201, Blue 205 (display name (INCI: Blue 4)), Blue 404, Green 3 (display name (INCI: Green 3, Green 3 Lake)), Green 201 (display name (INCI: Green 5)), Green 202 (display name (INCI: Green 6)), Green 204 (display name (INCI: Green 8)), Green 205, Orange 201 (display name (INCI: Orange 5)), Orange 203 (display name (INCI: Pigment Orange 5)), Orange 204, Orange 205 (display name (INCI: Orange 4, Orange 4 Lake)), Orange 206 (display name (INCI: Orange 10)), Orange 207 (display name (INCI: Orange 11)), etc. of tar dyes, cochineal (display name (INCI: Cochineal)), laccaic acid (display name (INCI: Laccaic Acid)), safflower red (display name (INCI: Carthamus TinctoriusNatural pigments such as (Safflower) Flower Extract, purple gromwell root extract (display name (INCI: Lithospermum Officinale Root Extract)), gardenia yellow, and gardenia blue (display name (INCI: Hydrolyzed Gardenia Florida Extract)) can be mentioned.

[0031] Examples of the inorganic-organic composite powder include a composite powder in which the surface of the inorganic powder is coated with an organic powder by a publicly known and commonly used method. The hydrophobizing agent for surface-treating the raw material powder is not particularly limited as long as it can impart hydrophobicity. Specifically, silicone treating agents, waxes, paraffins, organic fluorine compounds such as perfluoroalkyl and phosphates, surfactants, amino acids such as N-acylglutamic acid, and hydrophobizing agents such as metal soaps such as aluminum stearate (display name (INCI: Aluminum Stearate)) and magnesium myristate (display name (INCI: Magnesium Myristate)) can be mentioned.

[0032] Among them, silicone treatment agents are preferably used, such as silanes or silylating agents like triethoxycaprylylsilane (INCI name: Triethoxycaprylylsilane), or trimethoxysilyl dimethicone (INCI name: Trimethoxysilyl Dimethicone), silicone oils such as dimethicone (INCI name: Dimethicone), hydrogen dimethicone (INCI name: Hydrogen Dimethicone), triethoxysilylethyl polydimethylsiloxyethyl hexyl dimethicone (INCI name: Triethoxysilylethyl Polydimethylsiloxyethyl Hexyl Dimethicone), silicone compounds such as (acrylates / tridecyl acrylate / triethoxysilylpropyl methacrylate / dimethicone methacrylate) copolymer (INCI name: Acrylates / Tridecyl Acrylate / Triethoxysilylpropyl Methacrylate / Dimethicone Methacrylate Copolymer), (acrylates / dimethicone) copolymer (INCI name: Acrylates / Dimethicone Copolymer), etc. The above surface hydrophobization treatment agents can be used alone or in combination of two or more.

[0033] In the present invention, the method for surface-treating the raw material powder with a hydrophobizing agent is not particularly limited and can be carried out by known methods. The surface treatment method can be roughly classified into a dry method and a wet method. As the dry method, for example, any stirrer, grinder, mixer, disperser, etc., such as a Henschel mixer, ball mill, jet mill, kneader, planetary mixer, sand mill, attritor, ribbon blender, disperser mixer, homomixer, etc. can be used, and the treatment can be carried out by mixing / contacting the raw material powder used in the present invention with the hydrophobizing agent. At this time, the treatment may be carried out while applying energy such as heating, mechanochemical mechanical force, superheated steam, etc. Further, after sufficiently mixing / contacting the raw material powder and the hydrophobizing agent, energy such as heating, mechanochemical mechanical force, superheated steam, etc. may be separately applied for treatment. Alternatively, when mixing / contacting the hydrophobizing agent with the raw material powder, for the purpose of improving the dispersion efficiency of the hydrophobizing agent, the hydrophobizing agent may be preliminarily dissolved or dispersed in an arbitrary amount of water, solvent, or supercritical fluid, and means such as spraying this on the raw material powder may be used. As the wet method, it is possible to disperse the raw material powder and the hydrophobizing agent in water, solvent, or supercritical fluid, mix / contact them, then evaporate the solvent, and further apply energy such as heating, mechanochemical mechanical force, superheated steam, etc. for treatment. Specific examples of the hydrophobic powder are shown below, but the present invention is not limited thereto.

[0034] Commercially available products can also be used as the hydrophobized fine particle metal oxides. For example, as fine particle titanium oxides, there are products commercially available under the trade names such as STR-100C-LP, STR-100A-LP, STR-100W, STR-100W-LP, STR-100C-LF, STR-40-LP (manufactured by Sakai Chemical Industry Co., Ltd.), MT-01, MT-05, MT-100Z, MT-100TV, MT-100AQ, MT-150EX, MT-500B, MT-505SAS, MT-700B, MT-014Z, SMT-500SAS (manufactured by Teika), ST-455, ST-455WS, ST-457ECS, ST-495M (manufactured by Titanium Industry Co., Ltd.), etc. As fine particle zinc oxides, there are products commercially available under the trade names such as FINEX-50S-LP2, FINEX-30S-LP2, FINEX-50W, FINEX-30W, FINEX-50W-LP2, FINEX-52W-LP2, FINEX-30W-LP2, FINEX-33W-LP2, FINEX-50-LPT, FINEX-25-LPT, FINEX-50S-LPT, FINEX-30S-LPT (manufactured by Sakai Chemical Industry Co., Ltd.), MZ-150, MZ-200, MZ-300, MZ-306X, MZ-500HP, MZ-505T, MZ-506X, MZY-203S, MZY-210M3S, TMZ-HA1, MZX-5080TS (manufactured by Teika), etc. 。

[0035] Specific examples of the hydrophobized coloring pigments include the KTP-09 series, particularly KTP-09W, KTP-09R, KTP-09Y, KTP-09B, etc. (manufactured by Shin-Etsu Chemical Co., Ltd.).

[0036] [Dispersion] The dispersion of the present invention contains (A) a treated hydrophobic powder treated with an organopolysiloxane. The organopolysiloxane having a (poly)glycerin group and a polyoxyalkylene group, which is the component (A) of the present invention, acts as a dispersant for stably dispersing (B) the hydrophobic powder in (C) water.

[0037] In the dispersion, (A) a treated hydrophobic powder treated with an organopolysiloxane is blended, and as the component (A) Organopolysiloxane polysiloxane, (B) Hydrophobic powder, and (C) Water A dispersion containing them is preferred.

[0038] The organopolysiloxane of component (A) can be used alone or in combination of two or more. The blending amount of the organopolysiloxane of component (A) is not particularly limited, but is preferably 1 to 30% by mass, more preferably 5 to 11% by mass in the whole dispersion.

[0039] The blending amount of the hydrophobic powder of component (B) is not particularly limited, but is preferably 1 to 70% by mass, more preferably 10 to 60% by mass, and even more preferably 30 to 60% by mass in the whole dispersion.

[0040] [(Component (C))] In the present invention, water forms the aqueous phase of the dispersion, and the above-mentioned (B) hydrophobic powder is uniformly dispersed therein. Examples of water include purified water generally used in cosmetics, distilled water of fruits and plants, seawater (INCI: Sea Water), onsen water (Onsen-Sui), peat water (INCI: Peat Water), etc. defined by the display name.

[0041] (C) The blending amount of water is not particularly limited, but is preferably 5 to 95% by mass, more preferably 10 to 50% by mass in the whole dispersion.

[0042] [(Component (D))] The dispersion of the present invention can further contain one or more polyhydric alcohols in addition to the above-mentioned components (A) to (C). By blending polyhydric alcohol, (A) organopolysiloxane can be uniformly oriented on the surface of (B) hydrophobic powder, and aggregation of the powder is less likely to occur, so the stability of the dispersion over time is further improved.

[0043] Examples of the polyhydric alcohol include ethylene glycol, propylene glycol, dipropylene glycol, 1,3-butylene glycol, pentylene glycol, glycerin, diglycerin, triglycerin, polyglycerin, and the like. Among them, 1,3-butylene glycol, propylene glycol, diglycerin, glycerin, and combinations thereof are preferable.

[0044] When the component (D) is blended, the blending amount is not particularly limited, but is preferably 1 to 50% by mass, more preferably 1 to 25% by mass in the whole dispersion.

[0045] In the dispersion, optional components of the cosmetic described below can be blended as long as the effects of the present invention are not impaired. However, the blending amount of components other than the components (A) to (D) is preferably 50% by mass or less, more preferably 30% by mass or less in the whole dispersion. Further, the effects of the present invention can be obtained without blending a water-swellable substance or a water-soluble polymer compound.

[0046] The viscosity of the dispersion is preferably 100 to 10,000 mPa·s, more preferably 500 to 4,000 mPa·s in terms of the measured value of the viscosity at 25°C measured with a rotational viscometer described in JIS K 7117-1:1999. The dispersion of the present invention has low viscosity and excellent viscosity stability over time.

[0047] The method for producing the dispersion of the present invention is not particularly limited and can be produced by mixing the above-described components. Among them, a method having a step of mixing (A) an organopolysiloxane and (B) a hydrophobic powder, and a step of dispersing this mixture in the component (C) is preferable. The mixing method is not particularly limited, and a known technique capable of uniformly mixing can be adopted. For example, any stirrer, grinder, mixer, disperser, etc. such as a Henschel mixer, ball mill, kneader, planetary mixer, ribbon blender, disperser mixer, homomixer, roll mill, bead mill, etc. can be used.

[0048] The dispersion of the present invention disperses hydrophobic powder well in the aqueous phase. Therefore, even when the blending amount of the hydrophobic powder is large, the dispersion has a low viscosity, the hydrophobic powder is less likely to aggregate, and the dispersion does not thicken over time. In addition, the dispersion of the present invention can be used as a cosmetic itself. Since the continuous phase is water, it gives a refreshing and moist feeling when applied to the skin. The cosmetic film formed on the skin contains the hydrophobic powder and thus has excellent water resistance. Furthermore, since the hydrophobic powder is well dispersed, the uniformity of the cosmetic film is excellent, giving a good feeling of use. Moreover, the dispersion can be used as various raw materials, and is particularly useful as a cosmetic raw material, a paint raw material, and an ink raw material.

[0049] [Cosmetics] Hereinafter, the cosmetics of the present invention will be described in more detail. (A) The organopolysiloxane may be directly blended into the cosmetics, but it is preferably blended as the treated hydrophobic powder treated with the above (A) organopolysiloxane. Furthermore, it may be blended as the above dispersion. The blending amount in the whole cosmetics of the present invention is not particularly limited, but the blending amount when blended is as follows. (A) The blending amount of the organopolysiloxane as the component is not particularly limited, but is preferably 0.1 to 10% by mass, more preferably 0.1 to 5% by mass in the whole cosmetics. (B) The blending amount of the hydrophobic powder is not particularly limited, but is preferably 1 to 70% by mass, more preferably 10 to 60% by mass, and even more preferably 30 to 60% by mass in the whole cosmetics. (C) The blending amount of water is not particularly limited, but is preferably 5 to 95% by mass, more preferably 10 to 50% by mass in the whole cosmetics. (D) When the component is blended, the blending amount is not particularly limited, but is preferably 1 to 50% by mass, more preferably 1 to 25% by mass in the whole cosmetics. (D) The blending amount as a dispersant is not particularly limited, but is preferably 0.1 to 70% by mass, more preferably 1 to 50% by mass in the whole cosmetics.

[0050] [Oil agent] The cosmetic of the present invention may further contain an (E) oil agent. The oil agent may be in any form of liquid, solid, or semi-solid. Examples include hydrocarbon oils, higher fatty acids, higher alcohols, esters, silicone oils, and fluorine-based oil agents. These can be used alone or in combination of two or more.

[0051] Examples of the hydrocarbon oil include linear or branched hydrocarbon oils, which may be volatile or non-volatile hydrocarbon oils. Specifically, olefin oligomers, isododecane (INCI name: Isododecane), dodecane (INCI name: Dodecane), isohexadecane (INCI name: Isohexadecane), undecane (INCI name: Undecane), squalane (INCI name: Squalane), squalene (INCI name: Squalene), mineral oil (INCI name: Mineral Oil), liquid isoparaffin, polyisobutylene (trade name), hydrogenated polyisobutene (INCI name: Hydrogenated Polyisobutene), (C13-15) alkane (INCI name: C13-15 Alkane), etc.

[0052] Examples of the higher fatty acid include oleic acid (INCI name: Oleic Acid), linoleic acid (INCI name: Linoleic Acid), linolenic acid (INCI name: Linolenic Acid), arachidonic acid (INCI name: Arachidonic Acid), eicosapentaenoic acid (EPA) (INCI name: Eicosapentaenoic Acid), docosahexaenoic acid (DHA) (INCI name: Docosahexaenoic Acid), isostearic acid (INCI name: Isostearic Acid), hydroxystearic acid (INCI name: Hydroxystearic Acid), etc.

[0053] As natural animal and plant oils and semi-synthetic oils, there are avocado oil (display name (INCI: Persea Gratissima (Avocado) Oil)), linseed oil (display name (INCI: Linum Usitatissimum (Linseed) Seed Oil)), almond oil (display name (INCI: Prunus Amygdalus Dulcis (Sweet Almond) Oil)), olive oil (display name (INCI: Olea Europaea (Olive) Fruit Oil)), California torreya oil (display name (INCI: Torreya Californica (California Nutmeg) Oil)), citronella oil (display name (INCI: Cymbopogon Nardus (Citronella) Oil)), shark liver oil (display name (INCI: Shark Liver Oil)), cod liver oil (display name (INCI: Cod Liver Oil)), fish liver oil (display name (INCI: Fish Liver Oil)), kyounin oil (display name (INCI: Kyounin Yu)), sesame oil (display name (INCI: Sesamum Indicum (Sesame) Seed Oil)), rice germ oil (display name (INCI: Oryza Sativa (Rice) Germ Oil)), rice bran oil (display name (INCI: Oryza Sativa (Rice) Bran Oil)), camellia kissi seed oil (display name (INCI: Camellia Kissi Seed Oil)), safflower oil (display name (INCI: Carthamus Tinctorius (Safflower) Seed Oil)), turtle oil (display name (INCI: Turtle Oil)), camellia japonica seed oil (display name (INCI: Camellia Japonica Seed Oil)), evening primrose oil (display name (INCI: Oenothera Biennis (Evening Primrose) Oil)), corn germ oil (display name (INCI: Zea Mays (Corn) Germ Oil)), rapeseed oil (display name (INCI: RAPE SHUSHI YU)), wheat germ oil (display name (INCI: Triticum Vulgare (Wheat) GermOil), Persic oil (common name (INCI:)), Palm oil (common name (INCI: Elaeis Guineensis (Palm) Oil)), Palm kernel oil (common name (INCI: Elaeis Guineensis (Palm) Kernel Oil)), Castor oil (common name (INCI: Ricinus Communis (Castor) Seed Oil)), Hydrogenated castor oil (common name), Sunflower oil (common name (INCI: Helianthus Annuus (Sunflower) Seed Oil)), Grape seed oil (common name (INCI: Vitis Vinifera (Grape) Seed Oil)), Jojoba oil (common name (INCI: Simmondsia Chinensis (Jojoba) Seed Oil)), Macadamia nut oil (common name (INCI: Macadamia Ternifolia Seed Oil)), Mink oil (common name (INCI: Mink Oil)), Meadowfoam oil (common name (INCI: Limnanthes Alba (Meadowfoam) Seed Oil)), Cottonseed oil (common name (INCI: Gossypium Herbaceum (Cotton) Seed Oil)), Coconut oil (common name (INCI: Cocos Nucifera (Coconut) Oil)), Hydrogenated coconut oil (common name (INCI: Hydrogenated Coconut Oil)), Egg yolk oil (common name (INCI: Egg Oil)), etc. can be mentioned.

[0054] As esters, there are liquid oils having a form in which a fatty acid having 1 to 20 carbon atoms and an alcohol having 1 to 20 carbon atoms are condensed, and examples include monoesters or polyesters such as diesters and triesters. Specifically, diisobutyl adipate (designation name (INCI: Diisobutyl Adipate)), dihexyldecyl adipate (designation name), diheptylundecyl adipate (designation name (INCI: Diheptylundecyl Adipate)), n-alkyl glycol monoisostearate such as isostearyl isostearate (designation name (INCI: Isostearyl Isostearate)), isocetyl isostearate (designation name (INCI: Isocetyl Isostearate)), trimethylolpropane triisostearate (designation name (INCI: Trimethylolpropane Triisostearate)), glycol diethylhexanoate (designation name (INCI: Glycol Diethylhexanoate)), cetyl ethylhexanoate (designation name (INCI: Cetyl Ethylhexanoate)), triethylhexanoin (designation name (INCI: Triethylhexanoin)), trimethylolpropane triethylhexanoate (designation name (INCI: Trimethylolpropane Triethylhexanoate)), pentaerythrityl tetraethylhexanoate (designation name (INCI: Pentaerythrityl Tetraethylhexanoate)), octyldodecyl esters such as cetyl octanoate (designation name (INCI: Cetyl Ethylhexanoate)), octyldodecyl stearoyl stearate (designation name (INCI: Octyldodecyl Stearoyl Stearate)), oleyl oleate (designation name (INCI: Oleyl Oleate)), octyldodecyl oleate (designation name (INCI: Octyldodecyl Oleate)), decyl oleate (designation name (INCI: Decyl Oleate)), neopentyl glycol dioctanoate (designation name (INCI: Neopentyl GlycolDiethylhexanoate, Neopentyl Glycol Dicaprate (INCI name: Neopentyl Glycol Dicaprate), Triethyl Citrate (INCI name: Triethyl Citrate), Diethylhexyl Succinate (INCI name: Diethylhexyl Succinate), Amyl Acetate (INCI name: Amyl Acetate), Ethyl Acetate (INCI name: Etyl Acetate), Butyl Acetate (INCI name: Butyl Aceetate), Isocetyl Stearate (INCI name: Isocetyl Stearate), Butyl Stearate (INCI name: Butyl Stearate), Diisopropyl Sebacate (INCI name: Diisopropyl Sebacate), Diethylhexyl Sebacate (INCI name: Diethylhexyl Sebacate), Cetyl Lactate (INCI name: Cetyl Lactate), Myristyl Lactate (INCI name: Myristyl Lactate), Isononyl Isononanoate (INCI name: Isononyl Isononanoate), Isotridecyl Isononanoate (INCI name: Isotridecyl Isononanoate), Isopropyl Palmitate (INCI name: Isopropyl Palmitate), Ethylhexyl Isopalmitate (INCI name: Ethylhexyl Isopalmitate), Palmitic acid esters such as Isocetyl Palmitate, Hexyldecyl Palmitate (INCI name: Isocetyl Palmitate, Hexyldecyl Palmitate), Cholesteryl Hydroxystearate (INCI name: Cholesteryl Hydroxystearate), Isopropyl Myristate (INCI name: Isopropyl Myristate), Octyldodecyl Myristate (INCI name: Octyldodecyl Myristate), Myristyl Myristate (INCI name: MyristylMyristic acid esters such as Myristate)), Ethylhexyl Laurate (display name (INCI: Ethylhexyl Laurate)), Hexyl Laurate (display name (INCI: Hexyl Laurate)), Dioctyldodecyl Lauroyl Glutamate (display name (INCI: Dioctyldodecyl Lauroyl Glutamate)), Isopropyl Lauroyl Sarcosinate (display name (INCI: Isopropyl Lauroyl Sarcosinate)), Diisostearyl Malate (display name (INCI: Diisostearyl Malate)), Glyceryl Acetate (display name (INCI: Glyceryl Acetate)), Glyceryl Stearate (display name (INCI: Glyceryl Stearate)), and glyceride oils such as Caprylic / Capric Triglyceride (display name (INCI: Caprylic / Capric Triglyceride)) can be mentioned.

[0055] Examples of silicone oils include linear or branched dimethicones with low to high viscosities such as trisiloxane (INCI name: Trisiloxane), volatile dimethicone (INCI name: Dimethicone), low-viscosity dimethicone (INCI name: Dimethicone), cyclotetrasiloxane (INCI name: Cyclotetrasiloxane), cyclopentasiloxane (INCI name: Cyclopentasiloxane), cyclohexasiloxane (INCI name: Cyclohexasiloxane), methyl trimethicone (INCI name: Methyl Trimethicone), caprylyl methicone (INCI name: Caprylyl Methicone), phenyl trimethicone (INCI name: Phenyl Trimethicone), methylphenyl polysiloxane (INCI name: Diphenyl Dimethicone), diphenylsiloxy phenyl trimethicone (INCI name: Diphenylsiloxy Phenyl Trimethicone), ethyl methicone (INCI name: Ethyl Methicone), ethyl trisiloxane (INCI name: Ethyl Trisiloxane), hydrogen dimethicone (INCI name: Hydrogen Dimethicone), amodimethicone (INCI name: Amodimethicone), aminopropyl dimethicone (INCI name: Aminopropyl Dimethicone), high-polymerization gum-like dimethicone (INCI name: Dimethicone), gum-like amodimethicone (INCI name: Amodimethicone), silicone rubbers such as gum-like dimethylsiloxane-methylphenylsiloxane copolymer, and solutions of cyclic organopolysiloxanes of silicone rubbers and gums, amino acid-modified silicones, fluorine-modified silicones, silicone resins, and dissolved products of silicone resins.

[0056] Examples of the fluorine-based oil agents include perfluoropolyethers such as polyperfluoromethylisopropyl ether (designated name (INCI: Polyperfluoromethylisopropyl Ether)), and perfluorocarbons such as perfluorodecalin (designated name (INCI: Perfluorodecalin)) and perfluorohexane (designated name (INCI: Perfluorohexane)).

[0057] (E) When the component is blended, its blending amount is not particularly limited, but is preferably 1 to 50% by mass, more preferably 1 to 25% by mass in the whole cosmetic.

[0058] [Optional Component] The cosmetic of the present invention may further contain other optional components commonly used in the cosmetic field in combination. Examples of the optional components include, for example, ultraviolet absorbers, surfactants other than the component (A), film-forming agents, antiperspirants, antibacterial agents, preservatives, fragrances, salts, antioxidants, moisturizers, pH adjusters, chelating agents, cooling agents, anti-inflammatory agents, beauty components (whitening agents, cell activators, roughness improvers, blood circulation promoters, skin astringents, anti-seborrheic agents, etc.), vitamins, amino acids, nucleic acids, hormones, inclusion compounds, powders other than the component (B), organic resins, thickeners, etc. These can be used in appropriate amounts alone or in combination of two or more.

[0059] As the ultraviolet absorber, there is no particular limitation as long as it is a raw material that can be formulated in cosmetics, and it can be used alone or in combination of two or more. Specifically, as the oil-soluble ultraviolet absorber, homosalate (display name (INCI: Homosalate)), octocrylene (display name (INCI: Octocrylene)), t-butyl methoxydibenzoylmethane (display name (INCI: Butyl Methoxydibenzoylmethane)), ethylhexyl salicylate (display name (INCI: Ethylhexyl Salicylate)), diethylamino hydroxybenzoyl hexyl benzoate (display name (INCI: Diethylamino Hydroxybenzoyl Hexyl Benzoate)), oxybenzone-6 (display name (INCI: Benzophenone-6)), oxybenzone-9 (display name (INCI: Benzophenone-9)), oxybenzone-1 (display name (INCI: Benzophenone-1)), polysilicone-15 (display name (INCI: Polysilicone-15)), octyl dimethoxybenzylidene dioxoimidazolidine propionate (display name (INCI: Ethylhexyl Dimethoxybenzylidene Dioxoimidazolidine Propionate)), oxybenzone-2 (display name (INCI: Benzophenone-2)), terephthalylidene dicamphor sulfonic acid (display name (INCI: Terephthalylidene Dicamphor Sulfonic Acid)), ethylhexyl triazone (display name (INCI: Ethylhexyl Triazone)), methyl bis(trimethylsiloxy) silyl isopentyl trimethoxycinnamate (display name (INCI: Isopentyl Trimethoxycinnamate Trisiloxane)), drometrizole trisiloxane (display name (INCI: Drometrizole Trisiloxane)), ethylhexyl dimethyl PABA (display name (INCI: Ethylhexyl Dimethyl PABA)), isopropylMethoxycinnamate), Ethylhexyl Methoxycinnamate (INCI name: Ethylhexyl Methoxycinnamate), Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine (INCI name: Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine), Benzophenone-3 (INCI name: Benzophenone-3), Benzophenone-4 (INCI name: Benzophenone-4), Benzophenone-5 (INCI name: Benzophenone-5), Phenylbenzimidazole Sulfonic Acid (INCI name: Phenylbenzimidazole Sulfonic Acid), Methylene Bis-Benzotriazolyl Tetramethylbutylphenol (INCI name: Methylene Bis-Benzotriazolyl Tetramethylbutylphenol), Glyceryl Ethylhexanoate Dimethoxycinnamate (INCI name: Glyceryl Ethylhexanoate Dimethoxycinnamate), Glyceryl PABA (INCI name: Glyceryl PABA), Diisopropyl Methyl Cinnamate (INCI name: Diisopropyl Methyl Cinnamate), Cinoxate (INCI name: Cinoxate), Ethylhexyl Dimethoxybenzylidene Dioxoimidazolidine Propionate (INCI name: Ethylhexyl Dimethoxybenzylidene Dioxoimidazolidine Propionate), etc. Also, it is possible to use a UVA absorber (e.g., Diethylamino Hydroxybenzoyl Hexyl Benzoate (INCI name: Diethylamino Hydroxybenzoyl Hexyl Benzoate), etc.) and a UVB absorber (e.g., Ethylhexyl Methoxycinnamate (INCI name: Ethylhexyl Methoxycinnamate), etc.) in combination, and it is also possible to arbitrarily combine them.

[0060] Among them, one or more oil-soluble ultraviolet absorbers selected from ethylhexyl methoxycinnamate (display name (INCI: Ethylhexyl Methoxycinnamate)), diethylamino hydroxybenzoyl hexyl benzoate (display name (INCI: Diethylamino Hydroxybenzoyl Hexyl Benzoate)), octyl salicylate (display name (INCI: Ethylhexyl Salicylate)), polysilicone-15 (display name (INCI: Polysilicone-15)), t-butyl methoxydibenzoylmethane (display name (INCI: Butyl Methoxydibenzoylmethane)), oxybenzone (display name (INCI: Benzophenone-6)), methylene bis-benzotriazolyl tetramethylbutylphenol (display name (INCI: Methylene Bis-Benzotriazolyl Tetramethylbutylphenol)), bis-ethylhexyloxyphenol methoxyphenyl triazine (display name (INCI: Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine)), homosalate (display name (INCI: Homosalate)) and octocrylene (display name (INCI: Octocrylene)) are preferred.

[0061] As surfactants other than component (A), there are nonionic, anionic, cationic, and amphoteric surfactants, but there is no particular limitation, and any surfactant can be used as long as it is used in ordinary cosmetics. Among these surfactants, partial cross-linked polyether-modified silicone, partial cross-linked polyglycerin-modified silicone, linear or branched polyoxyethylene-modified organopolysiloxane, linear or branched polyoxyethylene polyoxypropylene-modified organopolysiloxane, linear or branched polyoxyethylene-alkyl co-modified organopolysiloxane, linear or branched polyoxyethylene polyoxypropylene-alkyl co-modified organopolysiloxane, linear or branched polyglycerin-modified organopolysiloxane, linear or branched polyglycerin-alkyl co-modified organopolysiloxane pyrrolidone-modified organopolysiloxane are preferred. In these surfactants, the blending amount of the hydrophilic polyoxyethylene group, polyoxyethylene polyoxypropylene group, or polyglycerin residue preferably accounts for 10 to 70% by mass in the molecule. Further, when using partial cross-linked polyether-modified silicone or partial cross-linked polyglycerin-modified silicone, in a composition composed of the cross-linked organopolysiloxane and an oil agent that is liquid at 25°C, the cross-linked organopolysiloxane preferably swells containing the liquid oil agent of its own weight or more with respect to the liquid oil. As the liquid oil agent, liquid silicone, hydrocarbon oil, ester oil, natural animal and vegetable oil, semi-synthetic oil, etc. in the optional component oil agent, fluorine-based oil can be used. For example, the kinematic viscosity at 25°C is 0.65 to 100 mm 2Low-viscosity silicone of / s, hydrocarbon oils such as liquid paraffin, squalane, isododecane, and isohexadecane, glyceride oils such as trioctanoin, ester oils such as isotridecyl isononanoate, N-acylglutamic acid ester, and lauroyl sarcosine ester, and natural animal and vegetable oils such as macadamia nut oil can be mentioned. Specific examples include those manufactured by Shin-Etsu Chemical Co., Ltd.: KSG-210, KSG-240, KSG-310, KSG-320, KSG-330, KSG-340, KSG-320Z, KSG-350Z, KSG-710, KSG-810, KSG-820, KSG-830, KSG-840, KSG-820Z, KSG-850Z, etc. Specific examples of surfactants that are not cross-linked organopolysiloxanes include those manufactured by Shin-Etsu Chemical Co., Ltd.: KF-6011, KF-6013, KF-6043, KF-6017, KF-6028, KF-6038, KF-6048, KF-6100, KF-6104, KF-6105, KF-6106, etc. In any case, the blending amount of the surfactant is preferably 0.1 to 20% by mass in the whole cosmetic. If it is 0.1% by mass or more, the functions of dispersion and emulsification can be sufficiently achieved, and if it is 20% by mass or less, it is preferable because there is no risk of the cosmetic having a sticky feeling. The HLB of the surfactant is not limited, but is preferably 2 to 14.5 for the purpose of maintaining the water resistance of the cosmetic.

[0062] The film-forming agent is mainly blended for the purpose of further maintaining the effect persistence of the cosmetic. Although not particularly limited, it is preferably a silicone-based composition from the viewpoint of imparting water repellency. Specifically, trimethylsiloxysilicic acid (display name (trimethylsiloxysilicate (INCI)), acrylic-silicone film-forming agent, silicone-modified norbornene, silicone-modified pullulan, etc. can be used. The film-forming agent may be dissolved in a liquid oil agent at room temperature in advance and then blended into the cosmetic. As the liquid oil agent, liquid silicone, hydrocarbon oil, ester oil, natural animal and vegetable oil, semi-synthetic oil, etc. in the oil agent of optional components, and fluorine-based oil can be used. For example, the kinematic viscosity at 25°C is 0.65 to 100 mm 2Low-viscosity silicone, hydrocarbon oils such as liquid paraffin, squalane, isododecane, and isohexadecane, glyceride oils such as trioctanoin, ester oils such as isotridecyl isononanoate, N-acylglutamic acid ester, and lauroyl sarcosine ester, and natural animal and vegetable oils such as macadamia nut oil can be mentioned. Specific examples thereof include: KF-7312J, which is a silicone-dissolved product of trimethylsiloxysilicic acid manufactured by Shin-Etsu Chemical Co., Ltd.; KP-545 and KP-549, which are silicone-dissolved products of acrylic-silicone film formers; NBN-30-ID, which is an isododecane-dissolved product of silicone-modified norbornene; TSPL-30-ID, which is an isododecane-dissolved product of silicone-modified pullulan; TSPL-30-D5, which is a silicone-dissolved product, etc.

[0063] When the cosmetic according to the present invention is a deodorant, an antiperspirant can be optionally blended. The antiperspirant is not particularly limited as long as it is a component that suppresses the generation of sweat by astringing the skin, and general-purpose components can be widely used. For example, chlorhydroxyaluminum, aluminum chloride, allantoin chlorhydroxyaluminum, allantoin aluminum salt, tannic acid, potassium aluminum sulfate, zinc oxide, zinc paraphenolsulfonate, burnt alum, tetrachloro(Al / zirconium) hydrate, trichlorohydrex glycine(Al / zirconium), etc. may be mentioned. In particular, as a component that exhibits a high effect, preferably, it is an antiperspirant active ingredient selected from the group consisting of aluminum halides, hydroxyaluminum halides, and complexes or mixtures thereof with zirconyl oxyhalide and zirconyl hydroxyhalide. These antiperspirants can be used by dissolving them in water and blending them, or by blending the powder as it is into the formulation. Commercially available products can also be used as the antiperspirant. The commercially available products used may be in the form of a mixed raw material with other components. The blending amount of the antiperspirant is not particularly limited and can be appropriately changed according to the blending amounts of other components. For the purpose of obtaining a deodorant with excellent antiperspirant effect and for the purpose of obtaining a deodorant with reduced irritation to the skin, the blending amount in the case of blending is preferably 0.001 to 30% by mass, more preferably 0.01 to 20% by mass in the whole cosmetic.

[0064] As long as the antibacterial agent can obtain an anti-odor effect by suppressing the growth of the resident bacteria on the skin that produce the causative substances of body odor, there is no particular limitation. For example, antibacterial agents such as triclosan, benzalkonium chloride, benzethonium chloride, chlorhexidine hydrochloride, chlorhexidine gluconate, halocarban, isomethylphenol, etc. are generally used. Also, essential oils and extracts derived from herbal medicines such as green tea dry distillation extract, etc. having antibacterial properties may be blended. As antibacterial agents having an anti-odor effect of essential oils and extracts derived from herbal medicines, for example, green tea extract, lavender extract, saffron extract, turmeric extract, plantain leaf extract, sea wormwood extract, aloe vera extract, kudzu root extract, miscanthus leaf extract, garlic extract, witch hazel extract, black tea extract, sage leaf extract, sansho extract, ginger root extract, arrowhead root extract, ivy extract, houttuynia cordata extract, peach fruit extract, peach leaf extract, peppermint leaf extract, cnidium officinale extract, eucalyptus leaf extract, castor bean seed coat extract, jujube extract, valerian extract, etc. can be used.

[0065] As preservatives, there are alkyl p-hydroxybenzoates, benzoic acid, sodium benzoate, sorbic acid, potassium sorbate, phenoxyethanol, etc. As antibacterial agents, there are benzoic acid, salicylic acid, phenol, sorbic acid, alkyl p-hydroxybenzoates, parachlorometacresol, hexachlorophene, trichlorocarbanilide, photosensitizers, etc.

[0066] As fragrances, there are natural fragrances and synthetic fragrances. As natural fragrances, there are plant-derived fragrances separated from flowers, leaves, woods, fruit peels, etc.; animal-derived fragrances such as musk and civet. As synthetic fragrances, there are hydrocarbons such as monoterpenes, alcohols such as aliphatic alcohols and aromatic alcohols; aldehydes such as terpene aldehydes and aromatic aldehydes; ketones such as alicyclic ketones; esters such as terpene esters; lactones; phenols; oxides; nitrogen-containing compounds; acetals, etc.

[0067] Examples of salts include inorganic salts, organic acid salts, amine salts, and amino acid salts. Examples of inorganic salts include sodium salts, potassium salts, magnesium salts, calcium salts, aluminum salts, zirconium salts, zinc salts, etc. of inorganic acids such as hydrochloric acid, sulfuric acid, carbonic acid, nitric acid, etc.; examples of organic acid salts include salts of organic acids such as acetic acid, dehydroacetic acid, citric acid, malic acid, succinic acid, ascorbic acid, stearic acid, etc.; examples of amine salts and amino acid salts include salts of amines such as triethanolamine, salts of amino acids such as glutamic acid, etc. In addition, other salts such as hyaluronic acid, chondroitin sulfate, aluminum zirconium glycine complex, etc., and furthermore, acid-alkali neutralization salts used in cosmetic formulations can also be used.

[0068] The antioxidants are not particularly limited, and examples thereof include carotenoids, ascorbic acid and its salts, ascorbyl stearate, tocopheryl acetate, tocopherol, p-t-butylphenol, butylhydroxyanisole, dibutylhydroxytoluene, phytic acid, ferulic acid, thiotaurine, hypotaurine, sulfites, erythorbic acid and its salts, chlorogenic acid, epicatechin, epigallocatechin, epigallocatechin gallate, apigenin, kaempferol, myricetin, quercetin, etc.

[0069] Examples of the humectants include glucose, xylitol, maltitol, polyethylene glycol, hyaluronic acid, chondroitin sulfate, pyrrolidone carboxylate, polyoxyethylene methyl glucoside, polyoxypropylene methyl glucoside, egg yolk lecithin, soybean lecithin, phosphatidylcholine, phosphatidylethanolamine, phosphatidylserine, phosphatidylglycerol, phosphatidylinositol, sphingomyelin lipids, etc.

[0070] Examples of the pH adjusters include lactic acid, citric acid, glycolic acid, succinic acid, tartaric acid, dl-malic acid, potassium carbonate, sodium bicarbonate, ammonium bicarbonate, etc. Examples of chelating agents include alanine, sodium edetate, sodium polyphosphate, sodium metaphosphate, phosphoric acid, aspartic acid diacetic acid, ethylenediamine disuccinic acid, and the like.

[0071] Examples of cooling agents include L-menthol, camphor, and the like. Examples of anti-inflammatory agents include allantoin, glycyrrhizic acid and its salts, glycyrrhetinic acid and stearyl glycyrrhetinate, tranexamic acid, azulene, and the like. Examples of skin beautifying ingredients include whitening agents such as vitamin C derivatives, hydroquinone, tranexamic acid, arbutin, phenyl ethyl resorcinol, kojic acid, and plant extracts; cell activators such as royal jelly, photosensitins, cholesterol derivatives, and calf blood extract; skin roughness improvers, nonyl acid valeryl amide, benzyl nicotinate, β-butoxyethyl nicotinate, capsaicin, gingerol, cantharis tincture, ichthyol, caffeine, tannic acid, α-borneol, tocopherol nicotinate, inositol hexanicotinate, cyclandelate, cinarizine, tazoline, acetylcholine, verapamil, cephalanthin, γ-oryzanol, and other blood circulation promoters; skin astringents such as zinc oxide and tannic acid; and anti-seborrheic agents such as sulfur and tiopronin.

[0072] Examples of vitamins include vitamin A oils, retinols, retinol acetates, retinyl palmitates, and other vitamin A compounds; riboflavins, riboflavin butyrates, flavin adenine nucleotides, and other vitamin B2 compounds; pyridoxine hydrochlorides, pyridoxine dioctanoates, pyridoxine tripalmitates, and other vitamin B6 compounds; vitamin B 12 and its derivatives, vitamin B 15Vitamins B such as the vitamin itself and its derivatives, vitamin C such as L-ascorbic acid, L-ascorbic acid dipalmitate, sodium L-ascorbate-2-sulfate, dipotassium L-ascorbic acid phosphate diester, vitamin D such as ergocalciferol, cholecalciferol, vitamin E such as α-tocopherol, β-tocopherol, γ-tocopherol, dl-α-tocopherol acetate, dl-α-tocopherol nicotinate, dl-α-tocopherol succinate; nicotinic acid such as nicotinic acid, benzyl nicotinate, nicotinamide, vitamin H, vitamin P, calcium pantothenate, D-pantothenyl alcohol, pantothenyl ethyl ether, acetyl pantothenyl ethyl ether and other pantothenic acids, biotin and the like.

[0073] Examples of amino acids include glycine, valine, leucine, isoleucine, serine, threonine, phenylalanine, arginine, lysine, aspartic acid, glutamic acid, cystine, cysteine, methionine, tryptophan and the like. Examples of nucleic acids include deoxyribonucleic acid and the like. Examples of hormones include estradiol, ethinyl estradiol and the like. Examples of the clathrate compound include cyclodextrin and the like.

[0074] When the organopolysiloxane (A) of the present invention is used as an emulsifier, an emulsified composition excellent in the excellent emulsification stability derived from the polyoxyalkylene group and the moisturizing feeling derived from the (poly)glycerin group can be obtained.

[0075] (A) The organopolysiloxane can be blended regardless of the shape and form of the cosmetic. Among them, it is particularly preferably used as a dispersant for dispersing hydrophobic powder into the aqueous phase. A method of blending the treated hydrophobic powder treated with the above (A) organopolysiloxane into the cosmetic (including blending in the form of a dispersion) is preferred. The cosmetic containing these gives a refreshing and juicy feeling when applied to the skin, and furthermore, the cosmetic film formed on the skin is excellent in water resistance because it contains hydrophobic powder. In addition, since the organopolysiloxane (A) of the present invention can disperse the (B) hydrophobic powder well in water, the resulting cosmetic film is excellent in uniformity and gives a smooth and good feeling of use.

[0076] The manufacturing method of the cosmetic of the present invention is not particularly limited, and it can be manufactured by blending a dispersion or the (A) component and cosmetic raw materials, and can follow the manufacturing method of ordinary cosmetics. Among them, it is preferable to have a treatment step of mixing the (A) component and the (B) component in advance. Specifically, the following methods can be mentioned. (I) A manufacturing method having a step of mixing the (A) component and the (B) component in advance and a step of blending the obtained mixture into the aqueous phase. (II) It preferably includes a step of mixing the (A) to (C) components and, if necessary, the (D) optional component in advance to prepare a dispersion, and a step of blending the dispersion.

[0077] The step of mixing the (A) component and the (B) component in advance in the above (I) is the same as the method for manufacturing the treated hydrophobic powder treated with the above (A) organopolysiloxane in terms of the suitable range and the like. The step of mixing the (A) to (C) components and, if necessary, the (D) optional component in advance to prepare a dispersion in the above (II) is the same as the method for manufacturing the above dispersion in terms of the suitable range and the like.

[0078] The shape of the cosmetic of the present invention is not particularly limited, and examples thereof include liquid, cream, paste, solid, mousse, spray, gel, emulsion, etc. Further, the use is not particularly limited, and for example, it can be used as a skin care cosmetic, a makeup cosmetic, a hair cosmetic, a sunscreen cosmetic, etc. Specific cosmetics include skin care, hair care, cleansing agents, makeup bases, concealers, liquid foundations, cream foundations, solid foundations, blushes, eyeshadows, mascaras, eyeliners, eyebrows, lipsticks, etc. formulated with the above cosmetic ingredients, and sunscreen cosmetics such as sunscreen emulsions and sunscreen creams.

[0079] In addition, the form of the cosmetic of the present invention is not particularly limited, and for example, it can be applied to any of oil-based cosmetics, water-based cosmetics, water-in-oil type cosmetics, and oil-in-water type cosmetics, but the form of water-in-oil type cosmetics is preferred. By taking the form of water-in-oil, the outer-phase water gives a fresher and more refreshing feeling, and further, as the water volatilizes, the adhesion of the hydrophobic powder to the skin is improved, and a uniform cosmetic film with high water resistance is formed. Thereby, the makeup retention and the usability are improved.

Examples

[0080] Hereinafter, examples and comparative examples will be shown to specifically explain the present invention, but the present invention is not limited to the following examples. The viscosity is the measured value of the viscosity at 25°C measured with a rotational viscometer described in JIS K 7117-1:1999. In addition, the blending amounts in the examples are the blending amounts of the described blended products. In addition, the bonding order of each siloxane unit is not limited to the following.

[0081] [Synthesis Example 1] The reactor was charged with (H) methylhydrogenpolysiloxane, (ii) alkene, and (v) organopolysiloxane in the molar ratios shown in Table 1 below, and a platinum catalyst was further added, followed by reaction at 80 °C. Thereafter, (iii) (poly)glycerin monoallyl ether and (iv) polyoxyalkylene monoallyl ether were charged in the molar ratios described in the table below, and isopropyl alcohol and a platinum catalyst were further added, followed by reaction at 80 °C. After that, isopropyl alcohol was removed under heating under reduced pressure to obtain organopolysiloxane (A-1) having a polyglycerin group and a polyoxyalkylene group of Synthesis Example 1. R 2 The blending amount is 15% by mass in the total mass of the organopolysiloxane (A-1).

[0082] (H-1) [Chemical formula] (ii-1) [Chemical formula] (iii-1) [Chemical formula] (iv-1) [Chemical formula] (A-1) [Chemical formula]

[0083] [Synthesis Example 2] By following the same procedure as in Synthesis Example 1 and charging and reacting each component in the molar ratios shown in Table 1 below, organopolysiloxane (A-2) was obtained. R in formula (1) 2 The blending amount is 14% by mass in the total mass of the organopolysiloxane (A-2).

[0084] (H-2) [Chemical formula] (ii-2)

Chem.

Chem.

Chem.

Chem.

[0085] [Synthesis Example 3] In the same procedure as in Synthesis Example 1, each component was charged in the molar ratio shown in Table 1 below and reacted to obtain organopolysiloxane (A-3). The amount of R in Formula (1) 2 is 14% by mass in the total mass of organopolysiloxane (A-3).

[0086] (H-3)

Chem.

Chem.

Chem.

Chem.

Chem.

Chem.

[0087] [Synthesis Example 4] Using the same procedure as in Synthesis Example 1, each component was charged in the molar ratio shown in Table 1 below and reacted to obtain organopolysiloxane (A-4).

[0088] (H-4) [Chemical formula] (iii-3) [Chemical formula] (iv-1) [Chemical formula] (v-2) [Chemical formula] (A-4) [Chemical formula]

[0089] [Synthesis Example 5] Using the same procedure as in Synthesis Example 1, each component was charged in the molar ratio shown in Table 1 below and reacted to obtain organopolysiloxane (A-5). The content of R in formula (1) 2 is 19% by mass in the total mass of organopolysiloxane (A-5). (H-5) [Chemical formula] (ii-1) [Chemical formula] (iii-1) [Chemical formula] (iv-2) [Chemical formula] (A-5) [Chemical formula]

[0090] [Synthesis Example 6] Using the same procedure as in Synthesis Example 1, each component was charged in the molar ratio shown in Table 1 below and reacted to obtain organopolysiloxane (A-6). (H-6) [Chemical formula] (iii-1) [Chemical formula] (iv-1) [Chemical formula] (A-6) [Chemical formula]

[0091] [Table 1]

[0092] a etc. in the compositional formula (1) are shown in Table 2 below. [Table 2]

[0093] [Examples 1 to 6, Comparative Examples 1 to 7] Aqueous dispersions of various powders were obtained by mixing the components in the amounts shown in Tables 3 and 4 by the following production method. In the tables, for example, those described as "Synthesis Example 1" refer to "organopolysiloxane (A-1) obtained in Synthesis Example 1".

[0094] [Table 3]

[0095]

Table 4

Chemical formula

Chemical formula

[0096] (Manufacturing method) Component (A), 1,3-butylene glycol, and (B) were mixed to obtain a paste-like composition. Next, water was mixed while stirring with a disperser to obtain an aqueous dispersion. It was confirmed that the same aqueous dispersion could also be obtained by stirring with a disperser after mixing component (A), 1,3-butylene glycol, water, and (B) all at once.

[0097] Regarding the aqueous dispersions of Examples 1 to 6 and Comparative Examples 1 to 7, the dispersion viscosity, viscosity stability over time, usability (freshness, smoothness), and water resistance were evaluated according to the following evaluation methods. The results are shown in Tables 3 and 4.

[0098] [Dispersion viscosity and viscosity stability over time] The obtained dispersion was stored in a 100 g glass bottle at 25 °C for 3 months. The viscosity of the slurry was measured at 25 °C immediately after preparation and after 1 month using a B-type viscometer (TVB-10 type, manufactured by Toki Sangyo Co., Ltd.) according to the method described in JIS K 7117-1:1999. [Feeling of use · Water resistance] The dispersion was applied to the back of the right hand, and the feeling of use (moisture, smoothness) and water resistance were evaluated by 10 professional panelists according to the following evaluation criteria. The results were judged according to the following judgment criteria based on the average value of 10 people. (Evaluation criteria)

[0099]

Table 5

[0100] From the results in the table, it was found that the aqueous dispersions of Examples 1 to 6 containing organopolysiloxanes having (poly)glycerin groups and polyoxyalkylene groups are excellent in the dispersibility of hydrophobic powders, usability, and water resistance. On the other hand, the aqueous dispersions obtained by blending polyglycerin-modified or polyether-modified organopolysiloxanes of Comparative Examples 1 to 3 were inferior in usability and water resistance, had high dispersion viscosities, and lacked usability. In Comparative Example 4, an aqueous dispersion was prepared by using a combination of polyglycerin-modified silicone and polyether-modified silicone, but it was found to be inferior in usability and water resistance, and the dispersion viscosity increased with time. In Comparative Example 5, an aqueous dispersion was prepared by blending a polyglycerin-modified silicone in which polyglycerin and the main-chain silicone were linked with a polyether, but it was found to be inferior in usability, water resistance, and dispersibility. The aqueous dispersion obtained in Comparative Example 6 using a hydrophilic powder had a low dispersion viscosity and showed good dispersibility, but it was found to lack water resistance. In Comparative Example 7, a dispersion was obtained by blending a polyether-modified silicone having an alkyl group, which was excellent in water resistance and had a certain degree of usability, but it was found to be inferior in usability compared to Examples 1 to 6 containing organopolysiloxanes having (poly)glycerin groups and polyoxyalkylene groups.

[0101] [Examples 7 to 8, Comparative Examples 8 to 10] Oil-in-water liquid foundation (cosmetic containing hydrophobic powder in the aqueous phase) An oil-in-water liquid foundation was obtained by mixing the components in the amounts (parts by mass) shown in Table 6 by the following production method.

[0102]

Table 6

[0103] (Manufacturing Method) Step 1: Component (A), the mixture of (17) - (18) as part of component (23), with components (19) - (22) added and dispersed, and then heated. Step 2: Components (1) - (8) were mixed, heated, and made into a solution. Step 3: Components (9) - (10), the remaining part of (23), (24), and (26) were mixed and heated. Step 4: Components (11) - (12) were mixed. Step 5:

[0104] With stirring, the solution obtained in Step 2 was added to the mixture obtained in Step 3 to form an emulsion, then the mixture obtained in Step 1 was added, and further the mixture obtained in Step 4 and component (25) were added to obtain an oil-in-water type liquid foundation.

[0105] Regarding the oil-in-water type liquid foundations of Examples 7 - 8 and Comparative Examples 8 - 10, in accordance with the same evaluation method as in Examples 1 - 6, the usability (freshness, smoothness) and water resistance were evaluated. The results are also shown in Table 6.

[0106] From the results in the table, it was found that the oil-in-water type liquid foundations of Examples 7 to 8 containing organopolysiloxanes having (poly)glycerin groups and polyoxyalkylene groups were excellent in terms of usability and water resistance. Also, they had fine texture, excellent stability over time, good spreadability on the skin, and a refreshing usability. The cosmetic films obtained from the oil-in-water type liquid foundations of Examples 7 to 8 were excellent in uniformity, had good water resistance and cold resistance, and good makeup retention. On the other hand, the oil-in-water type liquid foundations obtained by blending polyglycerin-modified or polyoxyalkylene-modified organopolysiloxanes of Comparative Examples 8 to 9 were found to have insufficient dispersion of hydrophobic powders and be inferior in terms of usability and water resistance. In Comparative Example 10, an oil-in-water type liquid foundation was prepared without adding a dispersant for hydrophobic powders, but significant aggregation of hydrophobic powders was observed, and it was inferior in terms of usability and water resistance.

[0107] [Example 9] Oil-in-water type cream foundation (cosmetic containing a dispersion) An oil-in-water type cream foundation was obtained by mixing the components in the amounts shown in Table 7 by the following production method. 。

[0108]

Table 7

[0109] (Production method) Step 1: A part of component (4), components (5) to (6) were mixed with component (11), components (7) to (10) were added and mixed, and the mixture was dispersed in a part of component (17). Step 2: Components (1) to (3) were mixed. Step 3: The remaining part of component (4), components (12) to (15), and the remaining part of component (17) were mixed. Step 4: With stirring, the mixture obtained in Step 2 was added to the emulsion obtained by adding the mixture obtained in Step 3, and the dispersion obtained in Step 1 and component (16) were added to obtain an oil-in-water type cream foundation.

[0110] Regarding the oil-in-water type cream foundation of Example 9, in accordance with the same evaluation methods as in Examples 1 to 6, the usability (freshness, smoothness), water resistance were evaluated. The results are also shown in Table 7. The oil-in-water type cream foundation obtained in Example 9 had a fine texture and excellent stability over time. Also, it had good spreadability on the skin, a smooth finish, no stickiness, was moist and fresh, had a beautiful makeup film, good water resistance, water repellency, sweat resistance, good makeup retention, was not easily smeared, and was found to be excellent in stability with no change due to temperature change or over time.

[0111] [Example 10] Water-in-oil type cream foundation (cosmetic containing a dispersion) An oil-in-water type cream foundation was obtained by mixing each component in the amounts shown in Table 8 according to the following production method.

[0112]

Table 8

[0113] (Manufacturing method) Step 1: Components (7) to (8) were mixed with component (14), components (9) to (13) were added and mixed, and it was dispersed in a part of component (19). Step 2: Components (1) to (6) were uniformly mixed. Step 3: Components (15) to (17) and the remainder of component (19) were mixed. Step 4: With stirring, the mixture obtained in Step 3 was added to the mixture obtained in Step 2 and emulsified, and then the dispersion obtained in Step 1 and component (18) were added to obtain a water-in-oil cream foundation.

[0114] For the water-in-oil cream foundation of Example 10, in accordance with the same evaluation method as in Examples 1 to 6, the usability (freshness, smoothness) and water resistance were evaluated. The results are also shown in Table 8. The water-in-oil cream foundation obtained in Example 10 had fine texture and excellent stability over time. Also, it had good spreadability on the skin and gave a smooth usability. The obtained cosmetic film was beautiful, had good water resistance, cold resistance, and good makeup retention.

[0115] [Example 11] Water-in-oil stick foundation (cosmetic containing a dispersion) By mixing each component in the amounts shown in Table 9 according to the following manufacturing method, a water-in-oil stick foundation was obtained.

[0116] [Table 9] (※1) Inulin stearate; Leopal ISK (manufactured by Chiba Flour Milling Co., Ltd.) (※2) Dimethylpolysiloxane; KF-96A-6cs (manufactured by Shin-Etsu Chemical Co., Ltd.) (※3) Crosslinked polyglycerin-modified silicone; KSG-710 (manufactured by Shin-Etsu Chemical Co., Ltd.) (※4) Alkyl-polyglycerin co-modified branched silicone; KF-6105 (manufactured by Shin-Etsu Chemical Co., Ltd.) (※5) Spherical polymethylsilsesquioxane powder; KMP-590 (manufactured by Shin-Etsu Chemical Co., Ltd.) (※6) Hydrophobically treated titanium oxide; ST-455FA (manufactured by Titanium Industry Co., Ltd.) (※7) Hydrophobically treated iron oxide powder; KF-9909 2% treated product (manufactured by Shin-Etsu Chemical Co., Ltd.)

[0117] (Manufacturing method) Step 1: To the mixture of components (9) to (10) and component (15), components (11) to (14) were added and mixed, and this was dispersed in a part of component (20) and heated. Step 2: Components (1) to (8) were mixed and heated. Step 3: Components (16) to (18) and the remainder of component (20) were mixed. Step 4: With stirring, the mixture obtained in Step 3 was added to the mixture obtained in Step 2 and emulsified, then the dispersion obtained in Step 1 was added, and then component (19) was further added and mixed, and this was poured into a container to obtain a water-in-oil type stick foundation.

[0118] Regarding the water-in-oil type stick foundation of Example 11, in accordance with the same evaluation method as in Examples 1 to 6, the usability (smoothness) and water resistance were evaluated. The results are also shown in Table 9. The water-in-oil type Stick foundation obtained in Example 11 was excellent in stability over time, had good spreadability on the skin, and gave a moist and smooth usability. The resulting cosmetic film was beautiful, had good water resistance and cold resistance, and had good makeup retention.

[0119] [Example 12] Oil-in-water type sun cut agent (cosmetic containing a dispersion) An oil-in-water type cutting fluid was obtained by mixing each component in the amounts shown in Table 10 by the following production method.

[0120]

Table 10

Chemical formula

[0121] (H-7)

Chemical formula

Chemical formula

Chemical formula

[0122] (Production method) Step 1: Component (1), a part of component (2), component (3), and a part of component (4) were mixed. Step 2: A part of component (2), components (6) to (7) were mixed, and it was dispersed in a part of component (10). Step 3: With stirring, the remainder of component (2) and the remainder of component (4) were added to the mixture obtained in Step 1 and mixed, and then the remainder of components (5), (8) and component (10) were added thereto to obtain a mixture. Step 4: With stirring, after adding the dispersion obtained in Step 2 to the mixture obtained in Step 3, component (9) was further added and mixed to obtain an oil-in-water sunscreen agent.

[0123] For the oil-in-water sunscreen agent of Example 12, the usability (smoothness) and water resistance were evaluated according to the same evaluation method as in Examples 1 to 6. The results are also shown in Table 10. The oil-in-water sunscreen agent obtained in Example 12 was excellent in stability over time, had good spreadability on the skin, and gave a moist and smooth usability. The obtained cosmetic film was beautiful, had good water resistance and cold resistance, and had good makeup retention.

[0124] [Example 13] Oil-in-water sunscreen agent (cosmetic containing a dispersion) An oil-in-water sunscreen agent was obtained by mixing the components in the amounts shown in Table 11 according to the following production method.

[0125] [Table 11] (※1) The alkyl-polyether copolymerized silicone (A-9) used above (※2) Acryloyldimethyltaurine ammonium / VP copolymer; Aristoflex AVC (manufactured by Clariant) (※3) Hydrophobically treated titanium oxide; STR-100W-OTS (manufactured by Sakai Chemical Industry) (※4) Hydrophobically treated zinc oxide; FINEX-30-OTS (manufactured by Sakai Chemical Industry) (Production method) Step 1: A part of component (2) and components (9) to (11) were mixed and dispersed in a part of component (14). Step 2: Component (7) and a part of component (14) were mixed. Step 3: With stirring, the remaining portions of components (1) and (2) were mixed, components (3) to (6) were added thereto, and then the remaining portions of components (8) and (14) were added to obtain a mixture. Step 4: With stirring, after adding the mixture obtained in Step 3, the mixture obtained in Step 2, and the dispersion obtained in Step 1 to the mixture, components (12) and (13) were further added and mixed to obtain an oil-in-water type sun cut agent.

[0126] Regarding the oil-in-water type sun cut agent of Example 13, in accordance with the same evaluation method as in Examples 1 to 6, the usability (smoothness) and water resistance were evaluated. The results are also shown in Table 11. The oil-in-water type sun cut agent obtained in Example 13 was excellent in stability over time, had good spreading on the skin, and gave a moist and smooth usability. The obtained cosmetic film was beautiful, had good water resistance and cold resistance, and had good makeup retention.

Claims

1. The following compositional formula (1): 【Chemical Formula 1】 [wherein, R 1 is independently a monovalent hydrocarbon group selected from an alkyl group having 1 to 5 carbon atoms, an aryl group having 6 to 15 carbon atoms, and an aralkyl group having 7 to 15 carbon atoms, R 2 is an alkyl group having 6 to 20 carbon atoms, R 3 is represented by the following general formula (2) 【Chemical 2】 (where h is an integer satisfying 0 ≦ h ≦ 20, and i satisfies 1 ≦ i ≦ 10.) represents a (poly)glycerin group, R 4 is represented by the following general formula (3) 【Chemical Formula 3】 (In the formula, R 6 is a hydrogen atom or a hydrocarbon group having 1 to 30 carbon atoms, j is an integer satisfying 0 ≦ j ≦ 20, and k1 and k2 each satisfy 2 ≦ k1 ≦ 100 and 0 ≦ k2 ≦ 100.) represents a polyoxyalkylene group, R 5 is represented by the following general formula (4), (5), (6) or (7) [Chemical Formula 4] (In the formula, R 1 is the same as described above, m and n are integers satisfying 0 ≤ m ≤ 5 and 0 ≤ n ≤ 100 respectively, and n1 to n3 are integers satisfying 0 ≤ n1 ≤ 2, 0 ≤ n2 ≤ 2, and 0 ≤ n3 ≤ 2.) represents a group, and a, b, c, d, e, f, g are respectively 0 ≦ a ≦ 50, 0 ≦ b ≦ 20, 1 ≦ c ≦ 10, 1 ≦ d ≦ 10, 0 ≦ e ≦ 10, f ≧ 0, g ≧ 0.) An organopolysiloxane having a (poly)glycerin group and a polyoxyalkylene group represented by the formula.

2. The organopolysiloxane according to Claim 1, wherein the ratio represented by (c / d) in the above compositional formula (1) is 0.1 ≦ (c / d) ≦ 1.

5.

3. (B) A hydrophobic powder is a treated hydrophobic powder treated with the (A) organopolysiloxane according to Claim 1.

4. A dispersion containing the treated hydrophobic powder according to Claim 3.

5. A cosmetic containing the treated hydrophobic powder according to Claim 3 or the dispersion according to Claim 4.

6. The cosmetic according to Claim 5, further containing (D) a polyhydric alcohol.

7. The cosmetic according to Claim 5, further containing (E) an oil agent.

Images