Dispersion, production method for same, and cosmetic

Abstract

A dispersion according to the present invention contains components (A)–(D) and has not only favorable dispersion properties immediately after production but also favorable viscosity stability (dispersion stability). (A) A nonvolatile oil that has a kinematic viscosity of 1–100 mm2 / s at 25°C: 15–65 mass%. (B) A powder: 30–70 mass%. (C) A dispersant that is soluble in component (A): 1–15 mass%. (D) A volatile component selected from among lower alcohols and volatile oils that have a boiling point of no more than 250°C: 100 ppm–10 mass%.

Description

Dispersion, manufacturing method thereof, and cosmetic

[0001] The present invention relates to a dispersion, a method for producing the same, and a cosmetic preparation containing the same. In the present invention, a composition for a cosmetic preparation is referred to as a cosmetic preparation.

[0002] Conventionally, when a cosmetic contains a powder, a technique has been known in which a dispersant is used to improve the wettability and dispersibility of the powder, thereby improving the feel when used and the storage stability (Patent Document 1), and it is known that dispersibility can be improved by studying the structural design of the dispersant.

[0003] On the other hand, since these dispersants are significantly affected by the dispersant, the selection of the dispersant and the dispersant is important, and for example, when a highly polar oil or the like is incompatible with a silicone dispersant, a technique is known in which a silicone dispersant having an alkyl branch is selected to obtain a composition with good dispersibility (Patent Document 2). However, no research has been conducted on the adsorption properties of dispersants.

[0004] International Publication No. WO 2016 / 178380 International Publication No. WO 2017 / 199732

[0005] The present invention has been made in view of the above circumstances, and aims to provide a dispersion that not only has good dispersibility immediately after production but also good viscosity stability (dispersion stability), and a cosmetic that can be blended into a cosmetic without impairing the good properties of the cosmetic when blended therein and that has excellent stability over time.

[0006] As a result of extensive research into achieving the above object, the present inventors have discovered that: (A) a kinematic viscosity at 25°C of 1 to 100 mm 2 The present inventors have discovered that a dispersion containing a volatile component selected from the group consisting of (A) component (A), (B) powder, (C) a dispersant that dissolves in the component (A), (D) a lower alcohol, and a volatile oil having a boiling point of 250°C or less, exhibits good adsorption of the dispersant to the powder and can solve the above-mentioned problems, leading to the creation of the present invention.

[0007] Accordingly, the present invention provides the following invention: 1. A dispersion containing the following components (A), (B), (C), and (D): (A) a dispersion having a kinematic viscosity of 1 to 100 mm at 25°C; 2 / s non-volatile oil: 15 to 65 mass% (B) powder: 30 to 70 mass% (C) dispersant soluble in component (A): 1 to 15 mass% (D) volatile component selected from lower alcohols and volatile oils having a boiling point of 250°C or less: 100 ppm to 10 mass% 2. The dispersion according to 1, wherein component (B) dispersed with components (C) and (D) is further dispersed with component (A). 3. The dispersion according to 1 or 2, wherein the rate of change in viscosity after 2 weeks at 25°C relative to the viscosity immediately after preparation is less than 250%. 4. The dispersion according to any one of 1 to 3, wherein component (A) is one or more selected from ester oil, phenyl silicone, and alkyl silicone. 5. The dispersion according to any one of 1 to 4, wherein component (B) has an average primary particle size of 8 to 200 nm. 6. The dispersion according to any one of 1 to 5, wherein component (B) is hydrophobized titanium dioxide fine particles. 7. The dispersion according to any one of 1 to 6, wherein the component (C) is a silicone surfactant. 8. The dispersion according to any one of 1 to 7, wherein the component (D) comprises one or more selected from isododecane, undecane, tridecane, cyclopentasiloxane, disiloxane, trisiloxane, dimethicone, and methyl trimethicone. 9. A method for producing the dispersion according to any one of 1 to 8, comprising the steps of: dispersing component (B) with components (C) and (D) to obtain a preliminary dispersion; and mixing the preliminary dispersion obtained above with component (A). 10. A cosmetic preparation comprising the dispersion according to any one of 1 to 8. 11. The cosmetic preparation according to 10, wherein the cosmetic preparation is an oil-in-water cosmetic preparation. 12. The cosmetic preparation according to 10 or 11, further comprising (E) an organic UV absorber.

[0008] According to the present invention, a dispersion having excellent powder dispersibility and viscosity stability (dispersion stability) can be provided, and this dispersion can be incorporated into cosmetics without impairing the good properties of the cosmetics when blended therewith, and the cosmetics have excellent stability over time.

[0009] The present invention will be described in detail below, but is not limited thereto. In the present invention, ingredient names may be written as cosmetic names or International Nomenclature of Cosmetic Ingredients (INCI). When the cosmetic name corresponds to the INCI, the cosmetic name or English name may be omitted.

[0010] [Component (A)] The component (A) of the present invention is a viscoelastic polymer having a kinematic viscosity of 1 to 100 mm at 25°C. 2 The kinematic viscosity is a non-volatile oil having a viscosity of 1 to 100 mm / s, and can be used alone or in appropriate combination of two or more. In the present invention, the kinematic viscosity is a value measured at 25°C using a Cannon-Fenske viscometer according to the method described in JIS Z 8803:2011. 2 / s (cSt; sometimes written as cs), 1 to 50 mm 2 / s is preferred, and 1 to 30 mm 2 / s is more preferred.

[0011] In the present invention, the non-volatile oil refers to an oil having a boiling point higher than 250° C. Specific examples include silicone oil, hydrocarbon oil, ester oil, higher fatty acid, natural oil, and fluorine-based oil. Among these, one or more selected from ester oil, phenyl silicone, and alkyl silicone are preferred from the viewpoint of excellent compatibility when an organic UV absorber is blended into the cosmetic.

[0012] Silicone Oils Examples of silicone oils include phenyl silicones such as phenyl trimethicone (display name (INCI: Phenyl Trimethicone)), diphenyl dimethicone (display name (INCI: Diphenyl Dimethicone)), and diphenylsiloxy phenyl trimethicone (display name (INCI: Diphenylsiloxy Phenyl Trimethicone)), alkyl silicones such as caprylyl methicone (display name (INCI: Caprylyl Methicone)), low-viscosity dimethicone (display name (INCI: Dimethicone)), and hydrogen dimethicone (display name (INCI: Hydrogen Dimethicone)), and the like, which have a kinematic viscosity of 1 to 100 mm 2 Examples of silicone oils that can be used include linear or branched dimethicone, amodimethicone (labeled as Amodimethicone by INCI), and aminopropyl dimethicone (labeled as Aminopropyl Dimethicone by INCI). Among these, examples of commercially available silicone oils include KF-4418, KF-96A-6cs, KF-56A, and KF-50-100cs manufactured by Shin-Etsu Chemical Co., Ltd. Other examples include amino acid-modified silicones and fluorine-modified silicones.

[0013] Ester oils are liquid oils formed by condensation of fatty acids having 1 to 20 carbon atoms with alcohols having 1 to 20 carbon atoms, and include compositions derived from animals and plants, and include polyesters such as monoesters, diesters, and triesters. Specifically, n-alkyl glycol monoisostearates such as diisobutyl adipate (display name (INCI: Diisobutyl Adipate)), dihexyldecyl adipate (display name (INCI: Diheptylundecyl Adipate)), and isostearyl isostearate (display name (INCI: Isostearyl Isostearate)), isocetyl isostearate (display name (INCI: Isocetyl Isostearate)), glycol diethylhexanoate (display name (INCI: Glycol Diethylhexanoate)), and cetyl ethylhexanoate (display name (INCI: Cetyl Ethylhexanoate), Triethylhexanoin (InCI: Triethylhexanoin), Trimethylolpropane triethylhexanoate (InCI: Trimethylolpropane Triethylhexanoate), Oleyl oleate (InCI: Oleyl Oleate), Octyldodecyl oleate (InCI: Octyldodecyl Oleate), Decyl oleate (InCI: Decyl Oleate), Neopentyl glycol diethylhexanoate (InCI: Neopentyl Glycol Diethylhexanoate), neopentyl glycol dicaprate (InCI: Neopentyl Glycol Dicaprate), triethyl citrate (InCI: Triethyl Citrate), diethylhexyl succinate (InCI: Diethylhexyl Succinate), amyl acetate (InCI: Amyl Acetate), ethyl acetate (InCI: Ethyl Acetate), butyl acetate (InCI: Butyl Acetate),Isocetyl stearate (InCI: Isocetyl Stearate), Butyl stearate (InCI: Butyl Stearate), Diisopropyl sebacate (InCI: Diisopropyl Sebacate), Diethylhexyl sebacate (InCI: Diethylhexyl Sebacate), Isononyl isononanoate (InCI: Isononyl Isononanoate), Isotridecyl isononanoate (InCI: Isotridecyl Coco-Caprylate / Caprate (INCI: Coco-Caprylate / Caprate)), Caprylic / Capric Triglyceride (INCI: Caprylic / Capric Triglyceride), Isopropyl Palmitate (INCI: Isopropyl Palmitate)), Ethylhexyl Palmitate (INCI: Ethylhexyl Isopalmitate)), Hexyldecyl Palmitate (INCI: Isocetyl Palmitate, Hexyldecyl palmitate esters such as isopropyl myristate (label name (INCI: Isopropyl Myristate)) and octyldodecyl myristate (label name (INCI: Octyldodecyl Myristate)); ethylhexyl laurate (label name (INCI: Ethylhexyl Laurate)), hexyl laurate (label name (INCI: Hexyl Laurate)), and isopropyl lauroyl sarcosinate (label name (INCI: Isopropyl Lauroyl Sarcosinate)).

[0014] Hydrocarbon Oils Examples of hydrocarbon oils include linear or branched non-volatile hydrocarbon oils, such as hydrogenated polyisobutene (labeled as INCI: Hydrogenated Polyisobutene), squalane (INCI), and mineral oil (INCI).

[0015] Among these, one or more selected from ester oil, phenyl silicone and alkyl silicone are preferred.

[0016] The blending amount of component (A) in the dispersion is 15 to 65% by mass, preferably 20 to 55% by mass, and more preferably 40 to 50% by mass. If it is less than 15% by mass, the dispersion will have a high viscosity and will be difficult to handle. If it exceeds 65% by mass, a stable dispersion may not be obtained, or the desired effects, such as UV shielding, may not be achieved.

[0017] [Component (B)] Component (B) of the present invention is a powder. Component (B) is not particularly limited as long as it is a raw material that can be typically incorporated into cosmetics, but examples include fine particle metal oxide powders, color pigments, inorganic powders, metal powders, organic powders, and inorganic-organic composite powders. These can be used alone or in appropriate combinations of two or more. Each is described in detail below. A fine particle powder having an average primary particle size of 8 to 200 nm is preferred, and 120 nm or less is more preferred. Particle sizes larger than this reduce the UV protection function and leave white residue. The average primary particle size can be measured using a transmission electron microscope photograph and is the average value of 200 particles. The shape of the powder may be any shape, such as spherical, approximately spherical, rod-shaped, spindle-shaped, petal-shaped, strip-shaped, or irregular.

[0018] Fine particle metal oxide powder The fine particle metal oxide used in the present invention is one or more selected from titanium oxide, for example, fine particle titanium oxide (display name (INCI: Titanium Dioxide)), iron-containing titanium oxide, zinc oxide (display name (INCI: Zinc Oxide)), cerium oxide (display name (INCI: Cerium Oxide)), and composites thereof. These metal oxides may be composite powders with other powders. This fine particle metal oxide powder is blended in the dispersion of the present invention or cosmetics containing the dispersion for the purpose of imparting ultraviolet protection function. The average primary particle diameter is preferably 8 to 200 nm, more preferably 120 nm or less. Particle diameters larger than this reduce the ultraviolet protection function and leave white residue.

[0019] The above-mentioned fine particle metal oxide may be untreated or may be surface-treated with a known method commonly used in cosmetics, without any particular limitation. For example, inorganic treatments include silica (display name (INCI: Silica)) coating, alumina (display name (INCI: Alumina)) coating, and aluminum hydroxide (display name (INCI: Aluminum Hydroxide)) coating. Organic treatments include silanes or silylating agents such as triethoxycaprylylsilane (display name (INCI: Triethoxycaprylylsilane)), dimethicone (display name (INCI: Dimethicone)), hydrogen dimethicone (display name (INCI: Hydrogen Dimethicone)), triethoxysilylethyl polydimethylsiloxyethylhexyl dimethicone (display name (INCI: Triethoxysilylethyl Examples of the additive include silicone oils such as Polydimethylsiloxyethyl Hexyl Dimethicone, waxes, paraffins, organic fluorine compounds such as perfluoroalkyl phosphates, surfactants, amino acids such as N-acylglutamic acid, and metal soaps such as aluminum stearate (display name (INCI: Aluminum Stearate)) and magnesium myristate (display name (INCI: Magnesium Myristate)). In particular, triethoxysilylethyl polydimethylsiloxyethyl hexyl dimethicone (labeled as Triethoxysilylethyl Polydimethylsiloxyethyl Hexyl Dimethicone by INCI) is highly dispersible in both silicones and oils, and is therefore used in sunscreens and foundations, while triethoxycaprylylsilane (labeled as Triethoxycaprylylsilane by INCI) and metal soap treatments are preferred in terms of compatibility with components (A), (C), and (D). These surface treatments may be used alone or in combination of two or more depending on the purpose.

[0020] These surface-treated fine particle metal oxides are also available as commercially available products. For example, fine particle titanium dioxide is commercially available under the trade names 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-N1, MT-01, MT-05, MT-100Z, MT-100TV, MT-100AQ, MT-100WP, MTY-100SAS, MT-150EX, MT-500B, MT-505SAS, MT-700B, MT-700Z, MT-014Z, SMT-500SAS (manufactured by Teika Co., Ltd.), ST-455, ST-455WS, ST-457ECS, ST-495M (manufactured by Titanium Industries Co., Ltd.), and the like. Fine particle zinc oxide products include 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, and FINEX-30S-LPT (manufactured by Sakai Chemical Industry Co., Ltd.). ), MZ-150, MZ-200, MZ-300, MZ-306X, MZX-303S, MZX-303M, MZX-304OTS, MZ-500HP, MZ-505T, MZX-505HPS, MZY-505M, MZ-506X, MZY-203S, MZX-203OTS, MZY-210M3S, TMZ-HA1, MZX-5080TS (manufactured by Teika), and the like.

[0021] Coloring Pigments The coloring pigments are not particularly limited as long as they are pigments that are normally used for coloring cosmetics, and examples thereof include red iron oxide (display name (INCI: Iron Oxides)), yellow iron oxide (display name (INCI: Iron Oxides)), white titanium oxide (display name (INCI: Titanium Dioxide)), black iron oxide (display name (INCI: Iron Oxides)), ultramarines (display name (INCI: Ultramarines)), ferric ferrocyanide (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 (labeled as INCI: Chromium Hydroxide Green), chromium oxide (labeled as INCI: Chromium Oxide Greens), aluminum / cobalt oxide (labeled as INCI: Cobalt Aluminum Oxide), titanium / titanium oxide sintered product (labeled as INCI: Titanium / Titanium Dioxide), lithium / cobalt titanate (labeled as INCI: Lithium Cobalt Titanate), iron oxide / titanium oxide sintered product (labeled as IRON OXIDE / TITANIUM DIOXIDE) Any of the following can be used: composites doped with different metals, such as titanium nitride (display name (INCI: Titanium Nitride)), iron oxide-doped titanium oxide (display name (INCI: Iron Oxides, Titanium Dioxide)), inorganic brown pigments, such as titanium nitride (display name (INCI: Titanium Nitride)), ferrous hydroxide (display name (INCI: Iron Hydroxide)), γ-iron oxide, inorganic yellow pigments, such as ochre, and colored pigments, such as lakes of tar-based pigments and lakes of natural pigments. These colored pigments may be surface-treated, and hydrophobically treated colored pigments are preferred in terms of dispersibility.

[0022] Furthermore, the shape of the color pigment is not particularly limited in terms of its geometric form, as long as it is capable of imparting color to the cosmetic. From the viewpoint of hiding power, a pigment having a particle size, i.e., a volume average particle size, in the range of 150 to 600 nm is preferable. The volume average particle size can be measured using a TEM or the like. If the particle size is less than 150 nm, the hiding power is low, which may result in a low coloring efficiency of the cosmetic, and if the particle size is greater than 600 nm, the feeling during use may be poor.

[0023] Furthermore, the pigment according to the present invention may be partially or completely 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)), or hydrated silica (display name (INCI: Hydrated Silica)).

[0024] The hydrophobization of the hydrophobized color pigment refers to subjecting the color pigment to a surface treatment with a hydrophobizing agent. The surface hydrophobizing agent for the color pigment of the present invention is not particularly limited as long as it can impart hydrophobicity, and examples thereof include silicone treatment agents, waxes, paraffins, organic fluorine compounds such as perfluoroalkyl phosphates, surfactants, amino acids such as N-acyl glutamic acid, and metal soaps such as aluminum stearate (labeled as Aluminum Stearate (INCI)) and magnesium myristate (labeled as Magnesium Myristate (INCI)).

[0025] Among these, silicone treatment agents are preferably used, and examples thereof include silanes or silylating agents such as triethoxycaprylylsilane (labeled as "Triethoxycaprylylsilane" by INCI) or trimethoxysilyl dimethicone (labeled as "Trimethoxysilyl Dimethicone" by INCI), dimethicone (labeled as "Dimethicone" by INCI), hydrogen dimethicone (labeled as "Hydrogen Dimethicone" by INCI), triethoxysilylethyl polydimethylsiloxyethyl hexyl dimethicone (labeled as "Triethoxysilylethyl Polydimethylsiloxyethyl Hexyl ... and silicone compounds such as (Acrylates / Tridecyl Acrylate / Triethoxysilylpropyl Methacrylate / Dimethicone Methacrylate Copolymer (Display name (INCI: Acrylates / Tridecyl Acrylate / Triethoxysilylpropyl Methacrylate / Dimethicone Methacrylate Copolymer)) and (Acrylates / Dimethicone) Copolymer (Display name (INCI: Acrylates / Dimethicone Copolymer)). As the silicone treatment agent, the silicone powder treatment agent described in Japanese Patent No. 3912961 is preferably used, and in particular, triethoxysilylethyl polydimethylsiloxyethyl hexyl dimethicone (displayed as INCI: Triethoxysilylethyl Polydimethylsiloxyethyl Hexyl Dimethicone), which is a dimethylpolysiloxane having triethoxysilyl groups, polydimethylsiloxyethyl groups, and hexyl groups in its side chains, is effectively used because it exhibits high affinity even when the dispersion medium for dispersing the highly hydrophobic treated color pigment is a mixed composition of silicone, hydrocarbon, etc. Note that the above surface hydrophobic treatment agents can be used alone or in combination of two or more.

[0026] In the present invention, the production method for surface-treating a color pigment using a hydrophobic treatment agent is not particularly limited and can be carried out by any known method. Surface treatment methods can be broadly divided into dry methods and wet methods. In the dry method, for example, any stirrer, grinder, mixer, disperser, or the like, such as a Henschel mixer, ball mill, jet mill, kneader, planetary mixer, sand mill, attritor, ribbon blender, disperser mixer, or homomixer, can be used to mix / contact the color pigment used in the present invention with the hydrophobic treatment agent. During this process, energy such as heat, mechanochemical mechanical force, or superheated steam may be applied to the color pigment and the hydrophobic treatment agent. Alternatively, after thoroughly mixing / contacting the color pigment and the hydrophobic treatment agent, energy such as heat, mechanochemical mechanical force, or superheated steam may be applied to the color pigment and the hydrophobic treatment agent. Furthermore, when mixing / contacting the hydrophobic treatment agent with the color pigment, for the purpose of improving the dispersion efficiency of the hydrophobic treatment agent, a means may be used in which the hydrophobic treatment agent is previously dissolved or dispersed in an arbitrary amount of water, solvent, or supercritical fluid, and then this is sprayed onto the color pigment. As a wet method, the color pigment and the hydrophobic treatment agent are dispersed in water, solvent, or supercritical fluid, mixed / contacted, and then the solvent is evaporated, and further, energy such as heating, mechanochemical mechanical force, or superheated steam is separately applied to carry out the treatment.

[0027] Specific examples of color pigments that have been subjected to hydrophobic surface treatment include the KTP-09 series, particularly KTP-09W, KTP-09R, KTP-09Y, and KTP-09B (manufactured by Shin-Etsu Chemical Co., Ltd.).

[0028] Inorganic Powders Examples of inorganic powders include zirconium oxide (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 (display name (INCI: Magnesium Sulfate)), calcium carbonate (display name (INCI: Calcium Carbonate)), magnesium carbonate (display name (INCI: Magnesium Sulfate)), calcium carbonate (display name (INCI: Calcium Carbonate)), magnesium carbonate (display name (INCI: Magnesium Oxide)), magnesium sulfate ... Carbonate), Talc (InCI: Talc), Cleaved Talc (InCI: Talc), Mica (InCI: Mica), Kaolin (InCI: Kaolin), Sericite (InCI: Mica), Synthetic Fluorphlogopite (InCI: Synthetic Fluorphlogopite), Biotite (InCI: Biotite), Potassium Silicate (InCI: Potassium Silicate), Silica (InCI: Silica), Fumed Silica, Aluminum Silicate (InCI: Aluminum Silicate), Magnesium Silicate (InCI: Magnesium Silicate) Silicate (Al / Mg) (Indication name (INCI: Magnesium Aluminum Silicate)), Calcium silicate (Indication name (INCI: Calcium Silicate)), Silicate (Al / Ca / Na) (Indication name (INCI: Aluminum Calcium Sodium Silicate)), Silicate (Li / Mg / Na) (Indication name (INCI: Lithium Magnesium Sodium Silicate)), Silicate (Na / Mg) (Indication name (INCI: Sodium Magnesium Silicate)), Borosilicate (Ca / Al) (Indication name (INCI: Calcium Aluminum Borosilicate)),Examples of the fine particles include fine particles made of borosilicate (Ca / Na) (display name (INCI: Calcium Sodium Borosilicate)), hydroxyapatite (display name (INCI: Hydroxyapatite)), bentonite (display name (INCI: Bentonite)), montmorillonite (display name (INCI: Montmorillonite)), hectorite (display name (INCI: Hectorite)), zeolite (display name (INCI: Zeolite)), alumina (display name (INCI: Alumina)), aluminum hydroxide (display name (INCI: Aluminum Hydroxide)), boron nitride (display name (INCI: Boron Nitride)), glass (display name (INCI: Glass)), and the like. Examples of inorganic colored pearl pigments include pearl agents such as titanium oxide-coated mica, bismuth oxychloride (display name (INCI: Bismuth Oxychloride)), bismuth oxychloride (display name (INCI: Bismuth Oxychloride)) coated with titanium oxide (display name (INCI: Titanium Dioxide)), talc (display name (INCI: Talc)) coated with titanium oxide (display name (INCI: Titanium Dioxide)), fish scale foil, and colored mica coated with titanium oxide (display name (INCI: Titanium Dioxide)), and are not particularly limited.

[0029] Metal Powder Examples of the metal powder include fine metal particles made of aluminum (display name (INCI: Aluminum Powder)), copper (display name (INCI: Copper Powder)), silver (display name (INCI: Silver Powder)), etc.

[0030] Organic Powders Examples of organic powders include powders made 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), cellulose, silk, nylon, phenolic resin, epoxy resin, polycarbonate, and the like. In particular, examples of silicones include silicone resin particles (specific examples include polymethylsilsesquioxane (labeled as INCI: Polymethylsilsesquioxane)) and silicone resin-coated silicone rubber powder (specific examples include vinyl dimethicone / methicone silsesquioxane crosspolymer (labeled as INCI: Vinyl Dimethicone / Methicone Silsesquioxane Crosspolymer)) and diphenyl dimethicone / vinyl diphenyl dimethicone / silsesquioxane crosspolymer (labeled as INCI: Diphenyl Dimethicone / Vinyl Diphenyl Dimethicone / Silsesquioxane)). Examples of the stearate include polysilicone-1 crosspolymer (label name (INCI: Polysilicone-1 Crosspolymer)), polysilicone-22 (label name (INCI: Polysilicone-22)), and the like. Metal soaps are also included, and specific examples thereof include zinc stearate (label name (INCI: Zinc Stearate)), aluminum stearate (label name (INCI: Aluminum Stearate)), calcium stearate (label name (INCI: Calcium Stearate)), magnesium stearate (label name (INCI: Magnesium Stearate)), zinc myristate (label name (INCI: Zinc Myristate)), magnesium myristate (label name (INCI: Magnesium Stearate)). Myristate)),Examples also include powders made of cetyl phosphate (zinc / Na) (display name (INCI: Sodium Zinc Cetyl Phosphate)), cetyl phosphate potassium (display name (INCI: Potassium Cetyl Phosphate)), and the like. Further, organic dyes and the like can also be mentioned, and specific examples thereof 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 Yellow 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)), cochineal (labeled name (INCI: Cochineal)), laccaic acid (labeled name (INCI: Laccaic Acid)),Examples of natural pigments include safflower red (labeled as INCI: Carthamus Tinctorius (Safflower) Flower Extract), purple root extract (labeled as INCI: Lithospermum Officinale Root Extract), gardenia yellow, and gardenia blue (labeled as INCI: Hydrolyzed Gardenia Florida Extract).

[0031] Inorganic-organic composite powders Examples of inorganic-organic composite powders include composite powders in which the surface of an inorganic powder is coated with an organic powder by a known or commonly used method.

[0032] Among the components (B), fine particle metal oxide powders that require dispersibility and hydrophobized color pigments are preferred, and hydrophobized fine particle titanium oxide such as metal soap-treated fine particle titanium oxide is more preferred.

[0033] The blending amount of component (B) in the dispersion is 30 to 70% by mass, preferably 40 to 70% by mass, and more preferably 40 to 60% by mass. If it is less than 30% by mass, the desired effects such as sufficient UV shielding effect and coloring effect cannot be obtained, and if it is blended in more than 70% by mass, the spreadability during use may be poor, and the cosmetic film may become white or powdery.

[0034] [Component (C)] The component (C) of the present invention is a dispersant that dissolves in the component (A). Component (C) is not limited as long as it is a dispersant that is generally used in cosmetics and dissolves in the component (A). The component (C) can be used alone or in appropriate combination of two or more types.

[0035] In the present invention, "dissolving in component (A)" means that when component (C) is mixed with component (A) at a concentration of 20% by mass and then allowed to stand at 25°C for 1 hour, a transparent to semitransparent state with no boundary is considered "dissolving," and a cloudy state or separation into two layers is considered "not dissolving." Regarding transparency, a product filled into a 1 cm thick cell and having a total light transmittance of 50% or more, as measured in accordance with the method described in JIS K7361-1:1997, is considered to be transparent to semitransparent.

[0036] Silicone surfactants are preferred in terms of their dispersibility in component (A), such as ester oils and silicone oils. For example, one or more silicone compounds selected from the group consisting of modified silicones and reactive silicones can be used. Among these, polyether-modified silicones, polyglycerin-modified silicones, acrylic silicones, and amino-modified silicones are preferred in terms of dispersing effect. Of these, acrylic silicones and polyglycerin-modified silicones are more preferred in terms of even higher dispersing effect. In terms of chemical structure, polyglycerin-modified silicones may be used, and the silicone chain serving as the main chain may be block-modified or branched-modified. From the viewpoint of maintaining uniform dispersibility of component (B) in the dispersion, branched-chain types are more preferred. The silicone main chain may have a branched chain such as a silicone chain. Specific examples include polyglyceryl-3 polydimethylsiloxyethyl dimethicone (INCI), lauryl polyglyceryl-3 polydimethylsiloxyethyl dimethicone (INCI), and bisbutyl dimethicone polyglyceryl-3 (INCI). Commercially available examples of polyglycerin-modified silicones include KF-6105, KF-6104, KF-6106, and KF-6115 manufactured by Shin-Etsu Chemical Co., Ltd. Commercially available examples of acrylic silicones include KP-578 manufactured by Shin-Etsu Chemical Co., Ltd. Commercially available examples of polyether-modified silicones include KF-6017, KF-6028, KF-6038, and KF-6048 manufactured by Shin-Etsu Chemical Co., Ltd.

[0037] The blending amount of component (C) in the dispersion is 1 to 15% by mass, preferably 3 to 15% by mass, more preferably 3 to 12% by mass, and even more preferably 5 to 10% by mass. If it is less than 1% by mass, dispersion stability may be impaired. If it exceeds 15% by mass, another component (C) may be oriented on the component (B) to which the component (C) is oriented, or a component (C) oriented on the component (B) may be easily peeled off by another component (C). This may increase the viscosity of the dispersion and affect dispersibility and dispersion stability.

[0038] [Component (D)] The component (D) of the present invention is a volatile component selected from lower alcohols and volatile oils having a boiling point of 250°C or less, and can be used alone or in combination of two or more.

[0039] The lower alcohol includes alcohols having 1 to 4 carbon atoms, such as ethanol, propanol, isopropanol, butyl alcohol, and isobutyl alcohol.

[0040] In the present invention, the volatile oil refers to an oil having a boiling point of 250° C. or lower. Specific examples of the volatile oil include linear (poly)siloxanes, such as disiloxane, trisiloxane (KF-96L-1cs, manufactured by Shin-Etsu Chemical Co., Ltd.), and dimethylpolysiloxane (KF-96L-1.5cs, KF-96L-2cs, manufactured by Shin-Etsu Chemical Co., Ltd.), cyclic polysiloxanes, such as cyclotetrasiloxane (D4), cyclopentasiloxane (D5) (KF-995, manufactured by Shin-Etsu Chemical Co., Ltd.), and cyclohexasiloxane (D6), branched polysiloxanes, such as methyltrimethicone (TMF-1.5, manufactured by Shin-Etsu Chemical Co., Ltd.), and hydrocarbon solvents, such as undecane, isododecane, C13-15 alkanes, and C9-12 alkanes, all of which have a boiling point of 250° C. or lower.

[0041] From the viewpoint of dispersibility, component (D) is preferably non-polar or low-polar. Among these, from the viewpoint of stability over time and feel when incorporated into a cosmetic, volatile components selected from isododecane, undecane, tridecane, cyclopentasiloxane, disiloxane, trisiloxane, dimethicone (KF-96L-1.5cs, KF-96L-2cs, manufactured by Shin-Etsu Chemical Co., Ltd.), and methyl trimethicone are preferred, and compositions containing these are also preferred. These can be used alone or in appropriate combinations of two or more.

[0042] The blending amount of component (D) in the dispersion is 100 ppm (by mass) to 10% by mass, preferably 100 ppm to 8.5% by mass, more preferably 100 ppm to 5% by mass, and even more preferably 100 ppm to 1.5% by mass. By using this amount, a dispersion having excellent powder dispersibility and viscosity stability (dispersion stability) can be obtained.

[0043] [Dispersion] The present invention relates to a dispersion containing the aforementioned components (A), (B), (C), and (D), in which powder (B) is dispersed. The total amount of components (A) to (D) in the dispersion is preferably 98 to 100% by mass, more preferably 99 to 100% by mass, and preferably 100% by mass, in which no optional components are substantially blended. Examples of optional components include antioxidants and water. From the viewpoints of stability over time and properties when incorporated into cosmetics, a dispersion in which component (B) dispersed with components (C) and (D) is further dispersed with component (A) is preferred.

[0044] The dispersion may be in a liquid or paste form. The initial viscosity at 25°C immediately after production is not particularly limited. However, when produced using a media-agitating mill such as a bead mill, it is preferably less than 1,000 mPa·s from the viewpoints of ease of bead filtration and ease of incorporation into cosmetics. Furthermore, from the viewpoint of usability, it is more preferably less than 750 mPa·s, and even more preferably less than 500 mPa·s. The lower limit is not particularly limited, but by setting it to 100 mPa·s or more, concentration separation of the dispersion is easily suppressed. The viscosity is measured using a Brookfield viscometer, for example, a spindle LV-2, and indicates the viscosity after 60 seconds at 30 revolutions. The hardness of the paste-like dispersion is also not particularly limited, but when produced using a three-roll mill, it is preferably 100 or less from the viewpoint of ease of processing. Furthermore, from the viewpoint of ease of incorporation into cosmetics, it is more preferably less than 80, and even more preferably less than 50. The lower limit is not particularly limited, but by setting it to 5 or more, concentration separation of the dispersion is easily suppressed. The hardness is a value measured using a rheometer, for example, a Rheometer RT-2002D.D (manufactured by Rheotec Corporation, measuring probe: 10 mmφ, penetration depth: 10 mm, sample stage rising speed: 5 cm / min, temperature: 25°C, range: 200) (the same applies hereinafter).

[0045] In order to maintain the stability of a cosmetic preparation containing the dispersion, it is preferable that the rate of change in viscosity of the dispersion after two weeks at 25°C relative to the viscosity immediately after preparation be less than 250%. This viscosity conversion rate is the method described in the Examples. The rate of change in viscosity at 25°C after two weeks at 25°C is more preferably less than 200%, even more preferably 160% or less, and particularly preferably 140%. The lower limit of the rate of change is not particularly limited, but can be 40% or more, 80% or more, or 90% or more. The viscosity of the dispersion at 25°C after two weeks at 25°C is preferably 40 mPa·s or more but less than 2,500 mPa·s, more preferably 80 to 2,000 mPa·s.

[0046] <Method for Producing Dispersion> The dispersion of the present invention can be produced by a known method. In particular, from the viewpoint of the adsorption of component (C) to component (B), a production method including a step of dispersing component (B) with components (C) and (D) to obtain a preliminary dispersion, and a step of mixing the preliminary dispersion obtained above with component (A) is preferred. Examples of the step of mixing the preliminary dispersion obtained above with component (A) include the following steps (I), (II), and (III). (I) a production method comprising a step of adding component (A) or a mixed solvent of components (A) and (D) to a preliminary dispersion to further disperse the components, thereby adjusting the blending ratio to the above-mentioned range; (II) a production method comprising a step of mixing the preliminary dispersion with component (A), reducing pressure and heating, and volatilizing component (D), thereby adjusting the blending ratio to the above-mentioned range; (III) a production method comprising adding a mixed solvent of components (A) and (C), or components (A), (C), and (D), to a preliminary dispersion to further disperse the components, thereby adjusting the blending ratio to the above-mentioned range. Note that component (D) can also be mixed with component (A) after volatilization, but the above-mentioned method is preferred in order to obtain a dispersion with better dispersibility.

[0047] As a dispersion method, for example, any stirrer, grinder, mixer, medium stirrer, rotation-revolution stirrer, disperser, etc., such as a Henschel mixer, ball mill, kneader, planetary mixer, ribbon blender, disperser mixer, homomixer, jet mill, roll mill, bead mill, high-pressure disperser, etc., can be used. In particular, from the viewpoint of mixing efficiency, it is preferable to use a bead mill or high-pressure disperser for dispersion.

[0048] [Cosmetics] The present invention provides cosmetics containing the above-mentioned dispersion. The amount of the dispersion in the cosmetics is appropriately selected from 0.5 to 60% by mass, and preferably from 5 to 31% by mass.

[0049] The present invention is applicable to various types of cosmetics, but preferred are cosmetics applied to the skin, such as skin care cosmetics, makeup cosmetics, antiperspirant cosmetics, and UV protection cosmetics, cosmetics applied to the hair, such as hair cosmetics, and nail cosmetics. Examples of skin care cosmetics include lotions, emulsions, creams, cleansers, packs, oil liquids, massage products, beauty serums, beauty oils, detergents, deodorants, hand creams, lip balms, and wrinkle concealers. Examples of makeup cosmetics include makeup bases, foundations, concealers, face powders, blushers, eye colors, eye shadows, mascaras, eyeliners, eyebrow pencils, and lipsticks. Examples of antiperspirant cosmetics include antiperspirant cosmetics in roll-on, cream, solution, and stick types. Examples of UV protection cosmetics include sunscreen oils, sunscreen emulsions, and sunscreen creams, as well as preparations in which the above-mentioned makeup cosmetics have been imparted with sunscreen effects. Examples of hair cosmetics include shampoos, rinses, treatments, setting agents, hair dyes, and hair fragrances.

[0050] The cosmetic preparation of the present invention may be in any form, for example, a powder, an oily liquid, a non-aqueous emulsion such as a water-in-oil or oil-in-water emulsion, or a multiple emulsion such as a W / O / W or O / W / O emulsion. The cosmetic preparation of the present invention may be in any form, including a liquid, emulsion, cream, solid, paste, gel, powder, pressed, multi-layered, mousse, spray, stick, or pencil. In particular, the effectiveness of the present invention can be more effectively achieved in oil-in-water cosmetics, since it is generally difficult to disperse powder in such cosmetics.

[0051] [Component (E)] The cosmetic of the present invention may contain component (E): an organic UV absorber. Examples of component (E) are given below, but there is no limitation as long as they are generally used in cosmetics. These may be used alone or in appropriate combinations of two or more.

[0052] Specifically, oxybenzone-1 (display name (INCI: Benzophenone-1)), oxybenzone-2 (display name (INCI: Benzophenone-2)), oxybenzone-3 (display name (INCI: Benzophenone-3)), oxybenzone-4 (display name (INCI: Benzophenone-4)), oxybenzone-5 (display name (INCI: Benzophenone-5)), oxybenzone-6 (display name (INCI: Benzophenone-6)), oxybenzone-9 (display name (INCI: Benzophenone-9)), homosalate (INCI), octocrylene (INCI), t-butyl methoxydibenzoylmethane (display name (INCI: Butyl (Inc. Isopropyl alcohol)), ethylhexyl salicylate (Inc. Isopropyl alcohol), diethylamino hydroxybenzoyl hexyl benzoate (Inc. Isopropyl alcohol), polysilicone-15 (Inc. Isopropyl alcohol), dimethoxybenzylidene dioxoimidazolidine octyl propionate (Inc. Isopropyl alcohol), terephthalylidene dicamphorsulfonic acid (Inc. Isopropyl alcohol), Dicamphor Sulfonic Acid), Ethylhexyl Triazone (INCI), Methyl Bis(trimethylsiloxy)silylisopentyl Trimethoxycinnamate (InCI: Isopentyl Trimethoxycinnamate Trisiloxane), Drometrizole Trisiloxane (INCI), Ethylhexyl Dimethyl PABA (InCI: Ethylhexyl Dimethyl PABA), Isopropyl Paramethoxycinnamate (InCI: Isopropyl Methoxycinnamate), Ethylhexyl Methoxycinnamate (InCI: Ethylhexyl Methoxycinnamate),Bis-ethylhexyloxyphenol methoxyphenyl triazine (INCI), phenylbenzimidazole sulfonic acid (label name (INCI: Phenylbenzimidazole Sulfonic Acid)), methylene bisbenzotriazolyl tetramethylbutylphenol (INCI), glyceryl dimethoxycinnamate ethyl hexanoate (label name (INCI: Glyceryl Ethylhexanoate Dimethoxycinnamate)), glyceryl PABA (INCI), methyl diisopropylcinnamate (label name (INCI: Diisopropyl Methyl Cinnamate)), cinoxate (INCI), ethylhexyl dimethoxybenzylidene dioxoimidazolidinepropionate (label name (INCI: Ethylhexyl Dimethoxybenzylidine Dioxoimidazolidine Propionate). It is also possible to use a UVA absorber (e.g., diethylaminohydroxybenzoyl hexyl benzoate) and a UVB absorber (e.g., ethylhexyl methoxycinnamate) in combination, and these can also be combined in any desired manner.

[0053] When an organic UV absorber is contained, its amount is not particularly limited, but is preferably 0.5 to 30% by mass, more preferably 3 to 25% by mass, and even more preferably 5 to 20% by mass of the total cosmetic. If it exceeds 30% by mass, the cosmetic may feel heavy or may be highly irritating. Furthermore, since the dispersion of the present invention has excellent compatibility with organic UV absorbers, the effects of the present invention are more pronounced at a concentration of 0.5% by mass or more. Cosmetics containing the dispersion of the present invention can be produced with high stability, particularly when the concentration of the organic UV absorber in the oil phase is high, for example, even when the concentration is 8% by mass or more, 10% by mass or more, or 15% by mass or more of the total cosmetic.

[0054] The cosmetic of the present invention may contain various components commonly used in cosmetics to the extent that the effects of the present invention are not impaired. For example, it may contain (1) an oil, (2) an aqueous component, (3) a surfactant, (4) a powder, (5) a composition consisting of a crosslinked organopolysiloxane and an oil that is liquid at room temperature, (6) a film-forming agent, (7) an ultraviolet absorbing / scattering agent, and (8) other additives. These may be used alone or in appropriate combinations of two or more. Components contained in the dispersions described above may also be incorporated. However, even if components (A) to (D) of the present invention are incorporated without the dispersion of the present invention, the significant effects intended by the present invention cannot be achieved. The dispersion of the present invention can easily disperse powders that are difficult to disperse in cosmetics, such as color pigments and fine powders. Therefore, the amount of component (C) in the cosmetic, excluding component (C) in the dispersion, may be 0 to 8% by mass, 0.1 to 5% by mass, or 0.1 to 3% by mass.

[0055] (1) Oils The cosmetic preparation of the present invention may contain other oils that are not classified as component (A) or component (D). These oils may be volatile or non-volatile and may be solid, semi-solid, or liquid at room temperature (25°C). Examples of such oils include silicone oils, silicone waxes, natural animal and vegetable oils and semi-synthetic oils and fats, hydrocarbon oils, higher alcohols, fatty acids, ester oils, and fluorine-based oils.

[0056] Silicone Oils Examples of silicone oils include alkyl-modified silicones such as dimethicone (INCI), trisiloxane (INCI), methyl trimethicone (INCI), ethyl trisiloxane (INCI), ethyl methicone (INCI), and hexyl dimethicone (INCI), long-chain alkyl-modified silicones such as caprylyl methicone (INCI), medium- to high-viscosity linear or branched organopolysiloxanes such as phenyl trimethicone (INCI), diphenyl dimethicone (INCI), diphenylsiloxy phenyl trimethicone (INCI), tetraphenyldimethyldisiloxane (INCI), and methylhydrogen polysiloxane, cyclotetrasiloxane (INCI), cyclopentasiloxane (INCI), and methyl methyl methyl dimethicone (INCI). Examples of the organic organosiloxane include cyclic organopolysiloxanes such as cyclohexasiloxane (INCI) and cyclohexasiloxane (INCI), amino-modified organopolysiloxanes such as amodimethicone (INCI) and aminopropyldimethicone (INCI), pyrrolidone-modified organopolysiloxanes such as PCA dimethicone (INCI), pyrrolidonecarboxylic acid-modified organopolysiloxanes, silicone rubbers such as gummy dimethylpolysiloxanes with a high degree of polymerization, gummy amino-modified organopolysiloxanes, and gummy dimethylsiloxane-methylphenylsiloxane copolymers, as well as low-viscosity organopolysiloxane solutions of silicone gums and rubbers, amino acid-modified silicones, fluorine-modified silicones, silicone resins, and silicone resin solutions. Examples of commercially available silicone oils include KF-96L-1cs, KF-96L-1.5cs, KF-96L-2cs, KF-96A-6cs, TMF-1.5, KF-4422, KF-4418, KF-56A, KF-995, KF-54, and KF-54HV manufactured by Shin-Etsu Chemical Co., Ltd.

[0057] In the present invention, when it is desired to solidify the cosmetic, it is preferable to blend an oily component that is solid at 25°C. The oily component that is solid at 25°C preferably has a melting point of 40°C or higher, more preferably 60 to 110°C, and examples thereof include waxes, hydrocarbons, esters, higher alcohols, and higher fatty acids, and is not particularly limited as long as it is a raw material that can be blended into ordinary cosmetic compositions. Specific examples of such waxes include carnauba wax (INCI: Copernicia Cerifera (Carnauba) Wax), sugarcane wax, candelilla wax (INCI: Euphorbia Cerifera (Candelilla) Wax), refined candelilla wax, rice wax, Japan wax, jojoba wax, kapok wax, rice bran wax, white bayberry fruit wax, shea butter, cacao butter, Japan wax (INCI: Rhus Succedanea Fruit Wax), montan wax (INCI: Montan Wax), vegetable waxes such as hydrogenated castor oil isostearate, beeswax, beef tallow, beef bone fat, lard (INCI: Lard), and horse fat (INCI: Horse Fat). Fat), sheep tallow, lanolin (INCI: Lanolin), animal waxes such as butterbur, shellac wax, and spermaceti; semi-synthetic waxes such as lanolin esters, lanolin fatty acid esters, and beeswax acid esters; hydrogenated oils such as hydrogenated castor oil and hydrogenated coconut oil; hydrocarbon waxes such as solid paraffin, polyethylene, ceresin, ozokerite, and microcrystalline wax; wax esters such as synthetic beeswax; amino acid stearyl alcohols such as dioctyldodecyl lauroyl glutamate, dioctyldodecyl lauroyl glutamate, and dioctyldodecyl lauroyl glutamate; fatty acids such as stearic acid and behenic acid; and silicone waxes such as acrylic silicone resins of acrylic-silicone graft or block copolymers (manufactured by Shin-Etsu Chemical Co., Ltd.: acrylic-silicone graft copolymers: KP-561P, 562P, etc.), or derivatives thereof, and it is preferable to use one or more selected from these.

[0058] Natural animal and vegetable oils and semi-synthetic oils Examples of natural animal and vegetable oils and semi-synthetic oils include avocado oil (labeling name (INCI: Persea Gratissima (Avocado) Oil)), linseed oil (labeling name (INCI: Linum Usitatissimum (Linseed) Seed Oil)), almond oil (labeling name (INCI: Prunus Amygdalus Dulcis (Sweet Almond) Oil)), perilla oil (labeling name), olive oil (labeling name (INCI: Olea Europaea (Olive) Fruit Oil)), and American grass oil (labeling name (INCI: Torreya California (California Nutmeg Oil)), Cymbopogon Nardus (Citronella Oil)), Kaya Seed Oil (InCI: Torreya Nucifera Seed Sesame oil (Indication name: INCI: Triticum Vulgare (Wheat) Germ Oil) Seed Oil)), rice germ oil (display name (INCI: Oryza Sativa (Rice)) Germ Oil)), rice bran oil (indication name (INCI: Oryza Sativa (Rice) Bran Oil)), sasanqua oil (indication name (INCI: Camellia Kissi Seed Oil)), safflower oil (indication name (INCI: Carthamus)) Tinctorius (Saffflower Seed Oil)), soybean oil (indication name (INCI: Glycine Soja (Soybean) Oil)), tea seed oil (indication name (INCI: Camellia Sinensis Seed)) Camellia oil), camellia oil (display name (INCI: Camellia Japonica Seed) Oil)), evening primrose oil (indication name (INCI: Oenothera Biennis (Evening Primrose) Oil)), rapeseed oil (indication name),Germ oils such as corn germ oil (designated name (INCI: Zea Mays (Corn) Germ Oil)), persic oil (designated name), palm oil (designated name (INCI: Elaeis Guineensis (Palm) Oil)), palm kernel oil (designated name (INCI: Elaeis Guineensis (Palm) Kernel Oil)), castor oil (designated name (INCI: Ricinus Communis (Castor) Seed Oil)), sunflower seed oil (designated name (INCI: Helianthus Annuus (Sunflower) Seed Oil)), grape seed oil (designated name (INCI: Vitis Vinifera (Grape) Seed Oil)), jojoba seed oil (designated name (INCI: Simmondsia Chinensis (Jojoba) Seed Oil)), macadamia seed oil (designated name (INCI: Macadamia Ternifolia Seed Oil)), meadowfoam oil (designated name (INCI: Limnanthes Alba (Meadowfoam) Seed Oil)), cottonseed oil (designated name (INCI: Gossypium Herbaceum (Cotton) Seed Oil)), coconut oil (designated name (INCI: Cocos Nucifera (Coconut) Oil)), peanut oil (designated name (INCI: Arachis Hypogaea (Peanut) Oil)) and other natural vegetable oils, shark liver oil (designated name (INCI: Shark Liver Oil)), cod liver oil (designated name (INCI: Cod Liver Oil)), fish liver oil (designated name (INCI: Fish Liver Oil)), turtle oil (designated name (INCI: Turtle Oil)), mink oil (designated name (INCI: Mink Oil)), egg oil (designated name (INCI: Egg Oil)) and other natural animal oils, hydrogenated coconut oil (designated name (INCI: Hydrogenated Coconut Oil)), liquid lanolin (designated name (INCI: Lanolin Oil)) and other semi-synthetic oils and fats, etc.

[0059] Hydrocarbon Oils Examples of hydrocarbon oils include linear or branched non-volatile hydrocarbon oils. Specific examples include isoparaffins such as olefin oligomers (INCI) and (C13,14) isoparaffin (INCI), and alkanes such as isododecane (INCI), undecane (INCI), dodecane (INCI), isohexadecane (INCI), hydrogenated polyisobutene (display name (INCI: Hydrogenated Polyisobutene)), squalane (INCI), mineral oil (INCI), palm alkanes (INCI), and (C13-15) alkanes (INCI).

[0060] Higher Alcohols Examples of higher alcohols include linear saturated alcohols having 6 or more carbon atoms, such as lauryl alcohol (INCI), hexyldecanol (INCI), oleyl alcohol (INCI), isostearyl alcohol (INCI), octyldodecanol (INCI), decyltetradecanol (INCI), myristyl alcohol (INCI), cetyl alcohol (INCI), stearyl alcohol (INCI), and behenyl alcohol (INCI), as well as batyl alcohol (INCI). Further examples include sterols, such as cholesterol (INCI), sitosterol (labeled name (INCI: Beta-Sitosterol)), phytosterols (INCI), and lanosterol (INCI).

[0061] Ester Oils Examples of ester oils include alkyl glycol monoisostearates such as diisobutyl adipate (label name (INCI: Diisobutyl Adipate)), dihexyldecyl adipate (label name (INCI: Diheptylundecyl Adipate)), and isostearyl isostearate (label name (INCI: Isostearyl Isostearate)), isocetyl isostearate (label name (INCI: Isocetyl Isostearate)), trimethylolpropane triisostearate (label name (INCI: Trimethylolpropane Triisostearate)), and glycol diethylhexanoate (label name (INCI: Glycol octyldodecyl esters such as cetyl ethylhexanoate (label name (INCI: Cetyl Ethylhexanoate)), trimethylolpropane triethylhexanoate (label name (INCI: Trimethylolpropane Triethylhexanoate)), pentaerythrityl tetraethylhexanoate (label name (INCI: Pentaerythrityl Tetraethylhexanoate)), and octyldodecyl stearoyloxystearate (label name (INCI: Octyldodecyl Stearoyl Stearate)); oleyl oleate (label name (INCI: Oleyl Stearate)); Oleate), Octyldodecyl oleate (InCI: Octyldodecyl Oleate), Decyl oleate (InCI: Decyl Oleate), Neopentyl glycol diethylhexanoate (InCI: Neopentyl Glycol Diethylhexanoate), Neopentyl glycol dicaprate (InCI: Neopentyl Glycol Dicaprate), Diisostearyl malate (InCI: Diisostearyl Malate), Triethyl citrate (InCI: Triethyl Citrate),Diethylhexyl succinate (InCI: Diethylhexyl Succinate), Amyl acetate (InCI: Amyl Acetate), Ethyl acetate (InCI: Ethyl Acetate), Butyl acetate (InCI: Butyl Acetate), Isocetyl stearate (InCI: Isocetyl Stearate), Butyl stearate (InCI: Butyl Stearate), Diisopropyl sebacate (InCI: Diisopropyl Sebacate), Diethylhexyl sebacate (InCI: Diethylhexyl Sebacate), cetyl lactate (label name (INCI: Cetyl Lactate)), myristyl lactate (label name (INCI: Myristyl Lactate)), isononyl isononanoate (label name (INCI: Isononyl Isononanoate)), isotridecyl isononanoate (label name (INCI: Isotridecyl Isononanoate)), isopropyl palmitate (label name (INCI: Isopropyl Palmitate)), ethylhexyl palmitate (label name (INCI: Ethylhexyl Isopalmitate)), hexyldecyl palmitate (label name (INCI: Isocetyl Palmitate, Hexyldecyl palmitate esters such as cholesteryl (label name (INCI: Cholesteryl Hydroxystearate)), isopropyl myristate (label name (INCI: Isopropyl Myristate)), octyldodecyl myristate (label name (INCI: Octyldodecyl Myristate)), and myristyl myristate (label name (INCI: Myristyl Myristate)); ethylhexyl laurate (label name (INCI: Ethylhexyl Laurate)), hexyl laurate (label name (INCI: Hexyl Laurate), dioctyldodecyl lauroyl glutamate (display name (INCI: Dioctyldodecyl Lauroyl Glutamate)),Examples of suitable esters include isopropyl lauroyl sarcosinate (label name (INCI: Isopropyl Lauroyl Sarcosinate)), coconut caprylate / caprate (label name (INCI: Coco-Caprylate / Caprate)), diisostearyl malate (label name (INCI: Diisostearyl Malate)), phytosteryl isostearate (label name (INCI: Phytosteryl Isostearate)), phytosteryl / octyldodecyl lauroyl glutamate (label name (INCI: Phytosteryl / Octyldodecyl Lauroyl Glutamate)), and diesters of dilinoleic acid, phytosterols, and higher alcohols.

[0062] Furthermore, among the ester oils, examples of glyceride oils include triethylhexanoin (INCI), tri(caprylic / capric)glyceryl (labeled name (INCI: Caprylic / Capric Triglyceride)), cocoglyceryl (INCI), (caprylic / capric / succinic) triglyceryl (labeled name (INCI: Caprylic / Capric / Succinic Triglyceride)), and (caprylic / capric) glycerides (labeled name (INCI: Caprylic / Capric Glycerides)).

[0063] Fluorine-based oils Examples of fluorine-based oils include perfluorodecalin (INCI), perfluorononyl dimethicone (INCI), and perfluoromethylcyclopentane (INCI).

[0064] (2) Aqueous Component The aqueous component is not particularly limited as long as it is an aqueous component that can be typically incorporated into cosmetics. Specific examples include water, lower alcohols preferably having 2 to 5 carbon atoms, such as ethanol (labeled as "Alcohol" in C1C) and isopropanol (labeled as "Isopropyl Alcohol" in C1C), and sugar alcohols, such as sorbitol (C1C), maltose (C1C), and xylitol (C1C). Further, polyhydric alcohols such as BG (display name (INCI: Butylene Glycol)), PG (display name (INCI: Propylene Glycol)), DPG (display name (INCI: Dipropylene Glycol)), pentylene glycol (INCI), 1,10-decanediol (INCI), octanediol (INCI), 1,2-hexanediol (INCI), erythritol (INCI), glycerin (INCI), diglycerin (INCI), and polyethylene glycol; glucose (INCI), glyceryl glucoside (INCI), betaine (INCI), sodium chondroitin sulfate (display name (INCI: Sodium Chondroitin Sulfate)), PCA-Na (display name (INCI: Sodium Examples of moisturizing agents include PCA), methyl gluceth-10 (INCI), methyl gluceth-20 (INCI), hyaluronic acid, egg yolk lecithin, soybean lecithin, phosphatidylcholine, phosphatidylethanolamine, phosphatidylserine, phosphatidylglycerol, phosphatidylinositol, and sphingophospholipids.

[0065] (3) Surfactants Surfactants include nonionic, anionic, cationic, and amphoteric surfactants, but are not particularly limited, and any surfactants commonly used in cosmetics can be used. Among these surfactants, one or more selected from non-crosslinked silicone surfactants or crosslinked silicone surfactants are preferred, as they can produce stable cosmetics. In either case, the amount of surfactant blended is preferably 0.1 to 20% by mass of the total cosmetic. A content of 0.1% or more allows for sufficient dispersion and emulsification functions, while a content of 20% by mass or less is preferred because it prevents the cosmetic from feeling sticky after use. The HLB of the surfactant is not limited, but is preferably 2 to 14.5 in order to maintain the water resistance of the cosmetic.

[0066] The non-crosslinked silicone surfactant is one in which some of the methyl groups in a linear or branched silicone main chain have been substituted with hydrophilic groups such as polyethylene glycol or polyglycerin, and specifically, preferred are linear or branched polyoxyethylene-modified organopolysiloxanes, linear or branched polyoxyethylene-polyoxypropylene-modified organopolysiloxanes, linear or branched polyoxyethylene-alkyl-co-modified organopolysiloxanes, linear or branched polyoxyethylene-polyoxypropylene-alkyl-co-modified organopolysiloxanes, linear or branched polyglycerin-modified organopolysiloxanes, linear or branched polyglycerin-alkyl-co-modified organopolysiloxanes, and linear or branched pyrrolidone-modified organopolysiloxanes. Examples of suitable dimethicones include PEG-11 methyl ether dimethicone (INCI), PEG / PPG-20 / 22 butyl ether dimethicone (INCI), PEG-3 dimethicone (INCI), PEG-10 dimethicone (INCI), PEG-9 polydimethylsiloxyethyl dimethicone (INCI), lauryl PEG-9 polydimethylsiloxyethyl dimethicone (INCI), cetyl PEG / PPG-10 / 1 dimethicone (INCI), polyglyceryl-3 disiloxane dimethicone (INCI), polyglyceryl-3 polydimethylsiloxyethyl dimethicone (INCI), lauryl polyglyceryl-3 polydimethylsiloxyethyl dimethicone (INCI), and bis-butyl dimethicone polyglyceryl-3 (INCI).

[0067] Commercially available examples include KF-6011, KF-6011P, KF-6012, KF-6015, KF-6017, KF-6043, KF-6028, KF-6038, KF-6048, KF-6100, KF-6104, KF-6106, KF-6105, KF-6115, and KF-6180 manufactured by Shin-Etsu Chemical Co., Ltd.

[0068] Examples of crosslinked silicone surfactants include crosslinked polyether-modified silicones such as (dimethicone / (PEG-10 / 15)) crosspolymer (INCI), (PEG-15 / lauryl dimethicone) crosspolymer (INCI), (PEG-10 / lauryl dimethicone) crosspolymer (INCI), and (PEG-15 / lauryl polydimethylsiloxyethyl dimethicone) crosspolymer (INCI); and crosslinked polyglycerin-modified silicones such as (dimethicone / polyglycerin-3) crosspolymer (INCI), (lauryl dimethicone / polyglycerin-3) crosspolymer (INCI), and (polyglycerin-3 / lauryl polydimethylsiloxyethyl dimethicone) crosspolymer (INCI).

[0069] Furthermore, when a crosslinked silicone surfactant is used, in a composition comprising the crosslinked silicone surfactant and an oil that is liquid at room temperature, the crosslinked silicone surfactant preferably swells with the liquid oil by absorbing more than its own weight of the liquid oil. The liquid oil can be a liquid silicone oil, hydrocarbon oil, ester oil, natural animal or vegetable oil, semi-synthetic oil, or fluorine-based oil, as contained in the optional component (1) oil, and examples thereof include cyclopentasiloxane (INCI), dimethicone (INCI), mineral oil (INCI), isododecane (INCI), isohexadecane (INCI), triethylhexanoin (INCI), isotridecyl isononanoate (display name (INCI: Isotridecyl Isononanoate)), squalane (INCI), etc. Examples of commercially available cross-linked silicone surfactants that swell when exposed to a liquid oil include KSG-210, KSG-240, KSG-270, KSG-310, KSG-320, KSG-330, KSG-340, KSG-320Z, KSG-350Z, KSG-710, KSG-790, KSG-810, KSG-820, KSG-830, KSG-840, KSG-820Z, and KSG-850Z, manufactured by Shin-Etsu Chemical Co., Ltd.

[0070] (4) Powder Powders can be used as the dispersion described above or separately. Alternatively, they can be incorporated into cosmetics as other dispersions. Specific examples of dispersions in which particles that absorb and scatter ultraviolet light are dispersed in an oil agent include the SPD series (product names) manufactured by Shin-Etsu Chemical Co., Ltd., in particular SPD-T5, T5L, Z5, Z5L, T6, Z6, T7, and Z7L.

[0071] The amount of powders other than those blended as dispersions in the cosmetic is preferably 0.5 to 90% by mass, more preferably 1 to 30% by mass, and even more preferably 5 to 20% by mass.

[0072] (5) Composition Comprising a Crosslinked Organopolysiloxane and an Oil That Is Liquid at Room Temperature In a composition comprising a crosslinked organopolysiloxane and an oil that is liquid at room temperature, the crosslinked organopolysiloxane preferably swells with the liquid oil in an amount equal to or greater than its own weight. The liquid oil may be a liquid silicone oil, hydrocarbon oil, ester oil, natural animal or vegetable oil, semi-synthetic oil, or fluorine-containing oil, as included in the optional component (1) oil. Examples of the liquid oil include cyclopentasiloxane (INCI), dimethicone (INCI), mineral oil (INCI), isododecane (INCI), isohexadecane (INCI), triethylhexanoin (INCI), isotridecyl isononanoate (labeled name: INCI: Isotridecyl Isononanoate), and squalane (INCI).

[0073] Unlike the crosslinked silicone surfactant of component (3) described above, component (5) is a compound that does not have a polyether or polyglycerin structure in its molecular structure, and specific examples include (dimethicone / vinyl dimethicone) crosspolymer (INCI), (dimethicone / phenyl vinyl dimethicone) crosspolymer (INCI), (vinyl dimethicone / lauryl dimethicone) crosspolymer (INCI), (lauryl polydimethylsiloxyethyl dimethicone / bis vinyl dimethicone) crosspolymer (INCI), etc. Examples of commercially available compositions comprising a crosslinked organopolysiloxane and an oil that is liquid at room temperature include KSG-15, KSG-1510, KSG-16, KSG-1610, KSG-19, KSG-016F, KSG-18A, KSG-41A, KSG-42A, KSG-43, KSG-44, KSG-45, KSG-042Z, KSG-045Z, and KSG-048Z, all manufactured by Shin-Etsu Chemical Co., Ltd.

[0074] (6) Film-Forming Agent The film-forming agent is blended mainly for the purpose of further maintaining the durability of the cosmetic effect. There are no particular limitations, but a silicone-based composition is preferable from the viewpoint of imparting water repellency. Specifically, trimethylsiloxysilicate, acrylic-silicone film-forming agent, silicone-modified norbornene, silicone-modified pullulan, silicone-modified polyvinyl alcohol, etc. can be used.

[0075] Examples of film-forming agents for silicone-based compositions include trimethylsiloxysilicate (labeled as (INCI: Trimethylsiloxysilicate), (Acrylates / Dimethicone) Copolymer (INCI), (Norbornene / Tris(trimethylsiloxy)silylnorbornene) Copolymer (INCI), and tri(trimethylsiloxy)silylpropylcarbamate pullulan (labeled as (INCI: Trimethylsiloxysilylcarbamoyl Pullulan)). The film-forming agent may be dissolved in a liquid oil at room temperature before blending into the cosmetic. As the liquid oil, liquid silicone oil, hydrocarbon oil, ester oil, natural animal and vegetable oil, semi-synthetic oil, or fluorine-based oil, may be used, as the optional component (1) in the oil. Specific examples of commercially available silicone film-forming agents include KF-7312J, KP-545, KP-549, KP-543, NBN-30-ID, TSPL-30-ID, and TSPL-30-D5, all manufactured by Shin-Etsu Chemical Co., Ltd.

[0076] (7) Ultraviolet-Absorbing / Scattering Agents Examples of ultraviolet-absorbing / scattering agents include particles that absorb and scatter ultraviolet light, such as titanium oxide microparticles, iron-containing titanium oxide microparticles, zinc oxide microparticles, cerium oxide microparticles, and composites thereof. Dispersions in which these ultraviolet-absorbing / scattering particles are pre-dispersed in an oil agent can also be used. Examples of the oil agent include liquid silicone oils, hydrocarbon oils, ester oils, natural animal and vegetable oils, semi-synthetic oils, and fluorine-based oils, which are optional components in (1) the oil agent. Specific examples of dispersions in which ultraviolet-absorbing / scattering particles are pre-dispersed in an oil agent include the SPD series (trade name) manufactured by Shin-Etsu Chemical Co., Ltd., particularly SPD-T5, T5L, Z5, Z5L, T6, Z6, T7, and Z7L.

[0077] (8) Other additives Examples of other additives include oil-soluble gelling agents, preservatives / disinfectants, antiperspirants, fragrances, salts, antioxidants, pH adjusters, chelating agents, cooling agents, anti-inflammatory agents, skin-beautifying ingredients (skin-whitening agents, cell activators, skin roughness improving agents, blood circulation promoters, skin astringents, antiseborrheic agents, etc.), vitamins, amino acids, nucleic acids, hormones, and inclusion compounds.

[0078] Oil-soluble gelling agents include metal soaps such as aluminum stearate, magnesium stearate, and zinc myristate; amino acid derivatives such as lauroyl glutamic acid (labeled as "Lauroyl Glutamic Acid" by INCI) and α,γ-di-n-butylamine; dextrin palmitate (labeled as "Dextrin Palmitate" by INCI), dextrin isostearate (labeled as "Dextrin Isostearate" by INCI), dextrin myristate (labeled as "Dextrin Myristate" by INCI), inulin stearate (labeled as "Stearoyl Inulin" by INCI), and dextrin (palmitate / ethylhexanoate) (labeled as "Dextrin" by INCI). dextrin fatty acid esters such as dextrin palmitate / ethylhexanoate); sucrose fatty acid esters such as sucrose palmitate and sucrose stearate; fructooligosaccharide fatty acid esters such as fructooligosaccharide stearate and fructooligosaccharide 2-ethylhexanoate; benzylidene derivatives of sorbitol such as monobenzylidene sorbitol and dibenzylidene sorbitol; disteardimonium hectorite (INCI), stearalkonium hectorite (INCI), organically modified clay minerals of hectorite; and stearalkonium bentonite (INCI).

[0079] - Preservatives and disinfectants Examples of preservatives and disinfectants include alkyl parahydroxybenzoate, benzoic acid, sodium benzoate, sorbic acid, potassium sorbate, phenoxyethanol, imidazolidinyl urea, salicylic acid, isopropylmethylphenol, carbolic acid, parachlormetacresol, hexachlorophene, benzalkonium chloride, chlorhexidine chloride, trichlorocarbanilide, iodopropynyl butylcarbamate, polylysine, photosensitizers, silver, plant extracts, etc.

[0080] Antiperspirants include aluminum hydroxyhalides such as chlorohydroxy AL, aluminum halides such as aluminum chloride, aluminum allantoin, tannic acid, persimmon tannin, sulfuric acid (AL / K), zinc oxide, zinc paraphenolsulfonate, burnt alum, tetrachloro(Al / zirconium) hydrate, trichlorohydrex glycine (Al / zirconium), etc. Particularly preferred components that exhibit high effectiveness are aluminum hydroxyhalides, aluminum halides, and complexes or mixtures thereof with zirconyl oxyhalides and zirconyl hydroxyhalides (for example, tetrachloro(Al / zirconium) hydrate, trichlorohydrex glycine (Al / zirconium)).

[0081] Fragrances Fragrances include natural fragrances and synthetic fragrances. Natural fragrances include plant-based fragrances isolated from flowers, leaves, wood, peels, etc.; and animal-based fragrances such as musk and civet. Synthetic fragrances include 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, and acetals.

[0082] Salts 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, and zinc salts of inorganic acids such as hydrochloric acid, sulfuric acid, carbonic acid, and nitric acid; examples of organic acid salts include salts of organic acids such as acetic acid, dehydroacetic acid, citric acid, malic acid, succinic acid, ascorbic acid, and stearic acid; examples of amine salts and amino acid salts include salts of amines such as triethanolamine, and salts of amino acids such as glutamic acid. In addition, salts of hyaluronic acid, chondroitin sulfate, aluminum zirconium glycine complexes, and even acid-alkali neutral salts used in cosmetic formulations can also be used.

[0083] Antioxidants Examples of antioxidants include, but are not limited to, carotenoids, ascorbic acid and its salts, ascorbyl stearate, tocopherol, tocopherol 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, campherol, myricetin, quercetin, etc. One type of antioxidant may be used alone, or two or more types may be used in combination.

[0084] pH Adjusting Agents Examples of pH adjusting agents include lactic acid, citric acid, glycolic acid, succinic acid, tartaric acid, dl-malic acid, potassium carbonate, sodium bicarbonate, and ammonium bicarbonate.

[0085] Chelating Agents Examples of chelating agents include alanine, edetate sodium salt, sodium polyphosphate, sodium metaphosphate, phosphoric acid, and the like.

[0086] Cooling agents include L-menthol, camphor, menthyl lactate, and the like.

[0087] Anti-inflammatory Agents Examples of anti-inflammatory agents include allantoin, glycyrrhizinic acid and its salts, glycyrrhetinic acid and stearyl glycyrrhetinate, tranexamic acid, and azulene.

[0088] Skin-beautifying ingredients Examples of skin-beautifying ingredients include whitening agents such as placenta extract, arbutin, glutathione, and saxifrage extract; wrinkle improvement agents such as retinol and niacinamide; cell activators such as royal jelly, photosensitizers, cholesterol derivatives, and calf blood extract; rough skin improvement agents; blood circulation promoters such as nonylic acid valenylamide, nicotinic acid benzyl ester, nicotinic acid β-butoxyethyl ester, capsaicin, zingerone, cantharides tincture, ichthammol, caffeine, tannic acid, α-borneol, tocopherol nicotinate, inositol hexanicotinate, cyclandelate, cinnarizine, tolazoline, acetylcholine, verapamil, cepharanthine, and γ-oryzanol; skin astringents such as zinc oxide and tannic acid; and antiseborrheic agents such as sulfur and thianthrol.

[0089] Vitamins: Vitamins include vitamin A oil, retinol, retinol acetate, retinol palmitate, and other vitamin A derivatives, riboflavin, riboflavin butyrate, flavin adenine nucleotide, and other vitamin B2 derivatives, pyridoxine hydrochloride, pyridoxine dioctanoate, pyridoxine tripalmitate, and other vitamin B6 derivatives, vitamin B12 and its derivatives, vitamin B15 and its derivatives, L-ascorbic acid, L-ascorbic acid dipalmitate, sodium L-ascorbic acid-2-sulfate, and dipotassium L-ascorbic acid phosphate diester. vitamin C such as ergocalciferol and cholecalciferol; vitamin D such as α-tocopherol, β-tocopherol, γ-tocopherol, dl-α-tocopherol acetate, dl-α-tocopherol nicotinate, and dl-α-tocopherol succinate; nicotinic acids such as nicotinic acid, benzyl nicotinate, and nicotinamide; vitamin H, vitamin P, pantothenic acids such as calcium pantothenate, D-pantothenyl alcohol, pantothenyl ethyl ether, and acetylpantothenyl ethyl ether; and biotin.

[0090] Amino acids include glycine, valine, leucine, isoleucine, serine, threonine, phenylalanine, arginine, lysine, aspartic acid, glutamic acid, cystine, cysteine, methionine, and tryptophan.

[0091] Nucleic Acids Examples of nucleic acids include deoxyribonucleic acid.

[0092] Hormones include estradiol and ethenylestradiol.

[0093] Inclusion Compounds Examples of inclusion compounds include cyclodextrin.

[0094] The present invention will be specifically explained below with reference to production examples, comparative production examples, dispersion and cosmetic examples, and comparative examples, but the present invention is not limited to the following examples. Unless otherwise specified, "%" in the compositions described below means "% by mass," and the mass of each component is expressed as % by mass, with the total mass of each example being 100% by mass, and the blending amount (content) is the blending amount of the blended product described.

[0095] [Production Example 1: Preliminary Dispersion] A preliminary dispersion was prepared according to the formulation shown in Table 1. (Production Method) A: Component (1) was mixed. B: Component (2) was added to the mixture obtained in A, and the mixture was dispersed using a bead mill.

[0096] (Note 1) Shin-Etsu Chemical Co., Ltd.: Lauryl polyglyceryl-3 polydimethylsiloxyethyl dimethicone

[0097] [Examples 1 to 8, Comparative Examples 1 to 4: Dispersions] The dispersions obtained below were evaluated as follows. <Viscosity Stability> The viscosity immediately after preparation of the dispersion and the viscosity after 2 weeks at 25°C were measured, and the rate of change was calculated. The viscosity for this evaluation was measured using a Brookfield viscometer (TVB-10 model, manufactured by Toki Sangyo Co., Ltd.) at 25°C with spindle No. 3 at 30 revolutions per minute for a measurement time of 30 seconds. Viscosity values ​​exceeding the upper limit of measurement were marked with "-" and deemed unsuccessful. The rate of change (%) of viscosity was calculated as follows: Rate of change (%) = (viscosity after 2 weeks at 25°C [mPa s]) / (viscosity immediately after preparation [mPa s]) × 100. Viscosity values ​​exceeding the upper limit of measurement after 2 weeks at 25°C were marked with "-".

[0098] [Example 1] In a recovery flask, 150 g of the pre-dispersion of Production Example 1, (A) ethylhexyl palmitate (kinematic viscosity at 25°C 15 mm 2 72 g of the dispersion (15 nm / s) was weighed out, attached to an evaporator, and gradually heated using an oil bath under reduced pressure to distill off component (D). The composition of the resulting dispersion was confirmed to be (C) lauryl polyglyceryl-3 polydimethylsiloxyethyl dimethicone: 6.9% by mass, (B) metal soap-treated titanium oxide fine particle (15 nm): 44.4% by mass, (D) cyclopentasiloxane: 1.4% by mass, and (A) ethylhexyl palmitate: 47.3% by mass. The resulting dispersion had an initial viscosity of 445 mPa s, and the viscosity change rate after 2 weeks at 25°C was 157%.

[0099] [Example 2] In a recovery flask, 150 g of the pre-dispersion of Production Example 1, (A) KF-56A (diphenylsiloxyphenyl trimethicone manufactured by Shin-Etsu Chemical Co., Ltd.; kinematic viscosity at 25°C: 15 mm 2 / s): 70 g was weighed, attached to an evaporator, and gradually heated using an oil bath under reduced pressure to distill off component (D). The composition of the resulting dispersion was confirmed to be (C) lauryl polyglyceryl-3 polydimethylsiloxyethyl dimethicone: 6.5 mass%, (B) metal soap-treated titanium dioxide fine particle (15 nm): 41.9 mass%, (D) cyclopentasiloxane: 8.2 mass%, and (A) KF-56A: 43.4 mass%. The resulting dispersion had an initial viscosity of 550 mPa s, and the viscosity change rate after 2 weeks at 25°C was 136%.

[0100] [Example 3] The dispersion of Example 1 was added to a recovery flask, which was then attached to an evaporator. The flask was gradually heated using an oil bath under reduced pressure to further distill off component (D). The composition of the resulting dispersion was confirmed to be: (C) lauryl polyglyceryl-3 polydimethylsiloxyethyl dimethicone: 7% by mass; (B) metal soap-treated titanium dioxide fine particle (15 nm): 45% by mass; (A) ethylhexyl palmitate (kinematic viscosity at 25°C: 15 mm); 2 The initial viscosity of the dispersion obtained was 990 mPa·s, and the viscosity change rate after 2 weeks at 25°C was 182%.

[0101] Example 4 A sample mill was charged with 10% by mass of (D) cyclopentasiloxane and 7% by mass of (C) lauryl polyglyceryl-3 polydimethylsiloxyethyl dimethicone, and after stirring, 45% by mass of (B) metal soap-treated titanium dioxide fine particles (15 nm) was added, and further stirring was carried out to disperse component (B). Into this dispersion, (A) coconut alkyl (caprylate / caprate) (kinematic viscosity at 25°C 5 mm 2 The resulting dispersion had an initial viscosity of 400 mPa·s and a viscosity change rate of 195% after 2 weeks at 25°C.

[0102] [Example 5] A sample mill was charged with 7% by mass of (D) isododecane and 7% by mass of (C) lauryl polyglyceryl-3 polydimethylsiloxyethyl dimethicone, and after stirring, 45% by mass of (B) metal soap-treated titanium dioxide fine particles (15 nm) was added, and further stirring was performed to disperse component (B). Into this dispersion, (A) isononyl isononanoate (kinematic viscosity at 25°C 7 mm 2 The resulting dispersion had an initial viscosity of 580 mPa·s and a viscosity change rate of 190% after 2 weeks at 25°C.

[0103] [Example 6] A beaker was charged with (D) C13-15 alkane: 5% by mass and (C) lauryl polyglyceryl-3 polydimethylsiloxyethyl dimethicone: 7% by mass, and after stirring, (A) squalane (kinematic viscosity at 25°C: 30 mm 2 A mixed solution was prepared by adding 43% by mass of (B) metal soap-treated titanium dioxide fine particles (15 nm): 45% by mass to this mixed solution, mixing, and dispersing using a paint shaker. The resulting dispersion had an initial viscosity of 378 mPa s, and the viscosity change rate after 2 weeks at 25°C was 165%.

[0104] [Example 7] A beaker was charged with 8.2% by mass of (D) cyclopentasiloxane and 6.5% by mass of (C) lauryl polyglyceryl-3 polydimethylsiloxyethyl dimethicone, and after stirring, (A) ethylhexyl palmitate (kinematic viscosity at 25°C: 15 mm 2 A mixed solution was prepared by adding 43.4% by mass of (B) metal soap-treated titanium dioxide fine particles (15 nm): 41.9% by mass to this mixed solution, mixing, and dispersing using a bead mill. The resulting dispersion had an initial viscosity of 449 mPa s, and the viscosity change rate after 2 weeks at 25°C was 212%.

[0105] [Example 8] A beaker was charged with 1.4% by mass of (D) cyclopentasiloxane and 6.9% by mass of (C) lauryl polyglyceryl-3 polydimethylsiloxyethyl dimethicone, and after stirring, (A) diphenylsiloxyphenyl trimethicone: kinematic viscosity at 25°C 15 mm 2A mixed solution was prepared by adding 47.3% by mass of (B) metal soap-treated titanium dioxide fine particles (15 nm): 44.4% by mass to this mixed solution, mixing, and dispersing using a bead mill. The resulting dispersion had an initial viscosity of 589 mPa·s, and a viscosity change rate of 244% after 2 weeks at 25°C. In the above examples, component (C) was dissolved in component (A).

[0106] [Comparative Examples 1 to 4: Dispersions] Dispersions of Comparative Examples 1 to 4 were prepared according to the formulations shown in Table 2. (Production Method) A: Component (1) was mixed. B: Component (2) was added to the mixture obtained in A and dispersed using a bead mill.

[0107] (Note 1) Shin-Etsu Chemical Co., Ltd.: Lauryl polyglyceryl-3 polydimethylsiloxyethyl dimethicone (soluble in component (A)) (Note 2) Shin-Etsu Chemical Co., Ltd.: Polyglyceryl-3 disiloxane dimethicone (insoluble in component (A)) (Note 3) (soluble in component (A))

[0108] In all of Examples 1 to 8, dispersions with low initial viscosities were obtained. In particular, the viscosity change rate after two weeks for the dispersions of Examples 1 to 6 was less than 200%, demonstrating that they maintained good dispersion stability. On the other hand, Comparative Examples 1 and 3, which did not contain component (D), Comparative Example 4, which did not contain component (A), and Comparative Example 2, which did not contain component (D) and used a dispersant that was insoluble in component (A), had high initial viscosities and poor dispersibility.

[0109] [Examples 9 to 14, Comparative Examples 5 to 8] (Cosmetics) Oil-in-water (O / W) cosmetics were prepared according to the formulations shown in Table 3. The obtained oil-in-water (O / W) cosmetics were evaluated as follows. (Production method) A: Component (1) was mixed. B: Component (2) was mixed. C: The mixture obtained in B was added to the mixture obtained in A and emulsified to obtain an oil-in-water (O / W) cosmetic.

[0110] [Properties of Cosmetics] The properties of the obtained cosmetics were evaluated by placing the cosmetics between glass slides. Those with good properties and continuity in the bulk were rated as "good" (pass), and those with poor emulsification and loss of continuity in the bulk were rated as "poor" (fail).

[0111] [Temporal stability of cosmetics] The obtained cosmetics were filled into 30 mL vials and left to stand at 50°C. Cosmetics that remained in good condition one month after the initial state were rated as "good" (passed), those that were in good condition one week but became poor one month later were rated as "fairly good" (passed), and those that were poor in condition one week later were rated as "poor" (failed). Note that the temporal stability test was not conducted on cosmetics that became poor initially.

[0112]

[0113] (Note 1) SEPPIC: SIMULGEL EG

[0114] As is clear from the results in Tables 3 and 4, the dispersions of the present invention have good adsorption of dispersants, and therefore, even in harsh formulations such as those containing organic UV absorbers, dispersibility and dispersion stability are maintained, making it possible to obtain cosmetics with good properties.

[0115] [Production Examples 2 to 4: Preliminary Dispersions] Preliminary dispersions were prepared according to the formulations shown in Table 5. (Production Method) A: Component (1) was mixed. B: Component (2) was added to A and dispersed using a bead mill.

[0116] (Note 1) Shin-Etsu Chemical Co., Ltd.: (Acrylates / Ethylhexyl Acrylate / Dimethicone Methacrylate) Copolymer (Note 2) Shin-Etsu Chemical Co., Ltd.: Lauryl Polyglyceryl-3 Polydimethylsiloxyethyl Dimethicone (Note 3) Shin-Etsu Chemical Co., Ltd.: Polyglyceryl-3 Polydimethylsiloxyethyl Dimethicone

[0117] [Production Examples 5 to 7: Preliminary Dispersions] Preliminary dispersions were prepared according to the formulations shown in Table 6. (Production Method) A: Component (1) was mixed. B: Component (2) was added to the mixture obtained in A and dispersed using a high-pressure disperser.

[0118] (Note 1) Shin-Etsu Chemical Co., Ltd.: (Acrylates / Ethylhexyl Acrylate / Dimethicone Methacrylate) Copolymer (Note 2) Shin-Etsu Chemical Co., Ltd.: Lauryl Polyglyceryl-3 Polydimethylsiloxyethyl Dimethicone (Note 3) Shin-Etsu Chemical Co., Ltd.: Polyglyceryl-3 Polydimethylsiloxyethyl Dimethicone

[0119] [Production Examples 8 to 10: Preliminary Dispersions] Preliminary dispersions were prepared according to the formulations shown in Table 7. (Production Method) A: Component (1) was mixed. B: Component (2) was added to the mixture obtained in A, and the mixture was dispersed using a high-pressure disperser.

[0120] (Note 1) Shin-Etsu Chemical Co., Ltd.: PEG-9 polydimethylsiloxyethyl dimethicone (Note 2) Shin-Etsu Chemical Co., Ltd.: Lauryl PEG-9 polydimethylsiloxyethyl dimethicone (Note 3) Shin-Etsu Chemical Co., Ltd.: Lauryl polyglyceryl-3 polydimethylsiloxyethyl dimethicone (Note 4) Shin-Etsu Chemical Co., Ltd.: KTP-09W (Note 5) Shin-Etsu Chemical Co., Ltd.: KTP-09R, Y, B

[0121] [Examples 15 to 23: Dispersions] Dispersions were prepared in the same manner as in Example 1, except that the component (A) and the preliminary dispersion were changed as shown in the table below and the content of the component (D) was adjusted to 5% by mass. The viscosity change rate of the resulting dispersions after 2 weeks at 25°C was less than 200%. In the above examples, the component (C) was soluble in the component (A).

[0122]

[0123] Example 24 Oil-in-Water Sunscreen Cream Composition % 1. Dispersion of Example 15 11 2. Ethylhexyl methoxycinnamate 5 3. KF-56A (Note 1) 3 4. Cetyl alcohol 0.5 5. Polyoxyethylene sorbitan monooleate 2.5 6. Glyceryl stearate (SE) 0.5 7. KF-6011P (Note 2) 1 8. Dipropylene glycol 6 9. 1,3-butylene glycol 6 10. Carboxyvinyl polymer 0.3 11. Acrylic polymer compound 0.3 12. Methylparaben 0.2 13. Phenoxyethanol 0.3 14. Disodium edetate appropriate amount 15. Water balance 16. 10% aqueous solution of sodium hydroxide Appropriate amount Total 100.0 (Note 1) Shin-Etsu Chemical Co., Ltd.: Diphenylsiloxyphenyl trimethicone (Note 2) Shin-Etsu Chemical Co., Ltd.: PEG-11 methyl ether dimethicone

[0124] (Production Method) A: Components 1 to 4 were mixed uniformly at 90°C. B: Components 5 to 15 were mixed uniformly at 85°C. C: The mixture obtained in A was added to the mixture obtained in B and emulsified, and component 16 was added and mixed uniformly to obtain an O / W sunscreen. The obtained O / W sunscreen had high transparency, little stickiness, and a good feel when used.

[0125] Example 25 Oil-in-Water Sunscreen Composition % 1. KSG-15 (Note 1) 8.0 2. KSG-16 (Note 2) 24.0 3. Cyclopentasiloxane 8.0 4. Ethylhexyl methoxycinnamate 2.0 5. BG 3.0 6. KF-6100 (Note 3) 0.6 7. KF-6104 (Note 4) 0.3 8. (Ammonium acryloyldimethyltaurate / VP) copolymer aqueous solution (Note 5) 13.0 9. (Acrylamide / Na acryloyldimethyltaurate) copolymer / isohexadecane / Polysorbate 80 aqueous solution (Note 6) 0.6 10. 1% sodium chloride aqueous solution 8.0 11. Water 12.5 12. Dispersion of Example 1 10.0 13. Dispersion of Example 17 10.0 Total 100.0 (Note 1) Shin-Etsu Chemical Co., Ltd.: Mixture of 90-96% cyclopentasiloxane + 4-10% (dimethicone / vinyl dimethicone) crosspolymer (Note 2) Shin-Etsu Chemical Co., Ltd.: Mixture of 70-80% dimethicone + 20-30% (dimethicone / vinyl dimethicone) crosspolymer (Note 3) Shin-Etsu Chemical Co., Ltd.: Polyglyceryl-3 disiloxane dimethicone (Note 4) Shin-Etsu Chemical Co., Ltd.: Polyglyceryl-3 polydimethylsiloxyethyl dimethicone (Note 5) Clariant: Aristoflex AVC (Note 6) Seppic: Simulgel 600 (Note 7) Shin-Etsu Chemical Co., Ltd.: Treated with KF-9901 (Hydrogen Dimethicone) (Note 8) Shin-Etsu Chemical Co., Ltd.: Treated with AES-3083 (Triethoxycaprylylsilane)

[0126] (Production method) A: Components 1 to 4 were mixed uniformly. B: Components 5 to 11 were mixed uniformly. C: The mixture obtained in A was added to the mixture obtained in B and emulsified, and then components 12 and 13 were added and dispersed uniformly. The oil-in-water sunscreen obtained in this manner had high stability, high transparency, a good non-sticky feel when used, and excellent water resistance.

[0127] Example 26 Aqueous Gel Composition % 1. Dispersion of Example 18 5.0 2. Ethanol 3.5 3. BG 4.0 4. Glycerin 2.0 5. (Acryloyldimethyltaurate ammonium / VP) copolymer 0.2 6. Xanthan gum 0.2 7. Arginine 0.5 8. Phenoxyethanol 0.3 9. Water Balance Total 100.0

[0128] (Production method) A: Components 1 and 2 are mixed uniformly. B: Components 3 to 9 are mixed uniformly. C: The mixture obtained in step A above is added to the mixture obtained in step B above, and the mixture is mixed uniformly. D: The mixture obtained in step C above is degassed and then filled into a container to obtain an aqueous gel. The aqueous gel obtained in this manner had an excellent fresh feeling when applied, high stability, high transparency, a good non-sticky feel when used, and excellent water resistance.

[0129] [Example 27] Oil-in-water base cream Composition % 1. Water Rest 2. Glycerin 3.0 3. Microcrystalline wax 3.0 4. Xanthan gum 0.2 5. Pentylene glycol 2.0 6. Butylene glycol 5.0 7. Dispersion of Example 2 10.0 8. Sucrose cocoate 0.2 9. Sorbitan stearate 3.0 10. PEG-60 glyceryl isostearate 0.5 11. Behenyl alcohol 0.5 12. Ethylhexyl palmitate 3.0 13. KSP-101 (Note 1) 3.0 14. Dispersion of Example 23 10.0 15. Polysorbate 60 0.3 16. (Hydroxyethyl acrylate / Sodium acryloyldimethyltaurate) copolymer (Note 2) 0.6 Total 100.0 (Note 1) Shin-Etsu Chemical Co., Ltd.: (Vinyl dimethicone / methicone silsesquioxane) crosspolymer (Note 2) SEPPIC: SIMULGEL EG

[0130] (Production Method) A: Components 1 to 6 were mixed uniformly, and then component 7 was mixed and homogenized. B: Components 8 to 12 were heated and dissolved, and then component 13 was mixed and homogenized. C: Component 14 was added to the mixture obtained in step B above, and the mixture was homogenized. D: The heated mixture obtained in step C above was added to the heated mixture obtained in step A above, and the mixture was homogenized. E: The emulsion obtained in step D above was cooled to room temperature, and then components 24 and 25 were added and the mixture was homogenized. F: The mixture obtained in step E above was degassed and filled into a container to obtain an oil-in-water base cream. The oil-in-water base cream obtained in this manner was highly stable, highly transparent, had a good non-sticky feel when used, and had excellent water resistance.

[0131] [Example 28] Oil-in-water sunscreen emulsion Composition % 1. Dispersion of Example 3 15.2 2. Ethanol 9.5 3. BG 5.0 4. Methylparaben 0.1 5. Sodium acrylate-sodium acryloyldimethyltaurate copolymer composition (Note 1) 2.5 6. Water Balance 7. KF-7312J (Note 2) 1.0 8. KF-56A (Note 3) 3.0 9. KSG-016F (Note 4) 1.0 10. Cetyl alcohol 2.0 11. Ethylhexyl methoxycinnamate 5.0 12. Diethylamino hydroxybenzoyl hexyl benzoate 1.0 13. Polyoxyethylene (60) hydrogenated castor oil 1.0 14. KF-6011 (Note 5) 0.515. Tocopherol 0.05 Total 100.0 (Note 1) SEPPIC: SIMULGEL EG (Note 2) Shin-Etsu Chemical Co., Ltd.: 50% trimethylsiloxysilicate dissolved in cyclopentasiloxane (Note 3) Shin-Etsu Chemical Co., Ltd.: Diphenylsiloxyphenyl trimethicone (Note 4) Shin-Etsu Chemical Co., Ltd.: Mixture of 70-80% dimethicone + 20-30% (dimethicone / vinyl dimethicone) crosspolymer (Note 5) Shin-Etsu Chemical Co., Ltd.: PEG-11 methyl ether dimethicone

[0132] (Production Method) A: Components 2 to 6 were heated to 85°C, and component 1 was added and mixed uniformly. B: Components 7 to 15 were heated to 85°C and mixed uniformly. C: The mixture obtained in B was added to the mixture obtained in A and emulsified at 85°C, followed by gradual cooling with stirring to obtain an oil-in-water sunscreen emulsion. The oil-in-water sunscreen emulsion obtained in this manner was highly stable, highly transparent, had a good non-sticky feel when used, and was excellent in water resistance.

[0133] [Example 29] Oil-in-water primer Composition % 1. KP-545 (Note 1) 3 2. KSG-19 (Note 2) 5 3. KF-56A (Note 3) 5 4. Cyclopentasiloxane 10 5. Dispersion of Example 3 30.6 6. BG 10 7. Betaine 1 8. KF-6043 (Note 4) 1.5 9. Sodium acrylate / sodium acryloyldimethyltaurate copolymer composition (Note 5) 1 10. (Acrylates / alkyl acrylate (C10-30)) crosspolymer (2% aqueous solution) 20 11. Arginine (10% aqueous solution) appropriate amount 12. Bisabolol 0.1 13. Ethylhexylglycerin 0.1 14. EDTA-2Na (10% aqueous solution) 0.115. Water Rest Total 100.0 (Note 1) Shin-Etsu Chemical Co., Ltd.: (Acrylates / Dimethicone) Copolymer 30% Cyclopentasiloxane Solution (Note 2) Shin-Etsu Chemical Co., Ltd.: Dimethicone 80-90% + (Dimethicone / Vinyl Dimethicone) Crosspolymer 10-20% Mixture (Note 3) Shin-Etsu Chemical Co., Ltd.: Diphenylsiloxyphenyl Trimethicone (Note 4) Shin-Etsu Chemical Co., Ltd.: PEG-10 Dimethicone (Note 5) SEPPIC: SIMULGEL EG

[0134] (Production method) A: Components 1 to 4 were mixed uniformly. B: Components 6 to 15 and component 5 were mixed uniformly. C: The mixture obtained in A was added to the mixture obtained in B and emulsified to obtain an O / W base. The oil-in-water base obtained in this manner was highly stable, highly transparent, non-sticky, had a good feel when used, and was excellent in water resistance.

[0135] [Example 30] Oil-in-water liquid foundation Composition % 1. Stearic acid 1.0 2. Behenyl alcohol 0.4 3. Glyceryl stearate 0.3 4. Mineral oil 10.0 5. Glyceryl trioctanoate 5.0 6. KP-561P (Note 1) 3.0 7. Sorbitan sesquioleate 0.5 8. Sorbitan monooleate 1.0 9. Acrylates copolymer 2.2 10. Triethanolamine 1.0 11. KF-6106 (Note 2) 1.0 12. KP-545 (Note 3) 0.5 13. Isotridecyl isononanoate 4.0 14. Silicone-treated titanium dioxide (Note 4) 8.5 15. 1. Silicone-treated red iron oxide (Note 4) 0.4 16. Silicone-treated yellow iron oxide (Note 4) 1.0 17. Silicone-treated black iron oxide (Note 4) 0.1 18. Dispersion of Example 16 12.0 22. BG 7.0 23. Preservative Appropriate amount 24. Fragrance Appropriate amount 25. Water Balance Total 100.0 (Note 1) Shin-Etsu Chemical Co., Ltd.: (Acrylates / Stearyl Acrylate / Dimethicone Methacrylate) Copolymer (Note 2) Shin-Etsu Chemical Co., Ltd.: Polyglyceryl-3 Polydimethylsiloxyethyl Dimethicone (Note 3) Shin-Etsu Chemical Co., Ltd.: (Acrylates / Dimethicone) Copolymer 30% Cyclopentasiloxane Dissolved(Note 4) Shin-Etsu Chemical Co., Ltd.: Triethoxycaprylylsilane treatment

[0136] (Production method) A: Components 11 to 13 were mixed, and then components 14 to 17 were added and rolled. B: Components 1 to 8 were mixed and heated to dissolve uniformly. C: Components 9 to 10 and 22, 23, and 25 were mixed and heated. D: While stirring, the mixture obtained in B was added to the mixture obtained in C and emulsified, and then the mixture obtained in A was added, followed by the addition of components 18 and 24, to obtain an oil-in-water liquid foundation. The oil-in-water liquid foundation obtained in this manner was highly stable and transparent, had a good non-sticky feel when used, and had excellent water resistance.

[0137] Example 31 Water-in-oil Sunscreen Emulsion Composition % 1. KSG-210 (Note 1) 3.0 2. KSG-15 (Note 2) 2.0 3. KF-6028 (Note 3) 1.0 4. Dimethicone 6CS 5.0 5. Cyclopentasiloxane 5.0 6. Isotridecyl isononanoate 4.0 7. Dispersion of Example 3 25.0 8. Dispersion of Example 20 35.0 9. Sodium citrate 0.2 10. Sodium chloride 0.5 11. Preservative appropriate amount 12. Fragrance appropriate amount 13. Water Remaining Total 100.0 (Note 1) Shin-Etsu Chemical Co., Ltd.: Mixture of 70-80% dimethicone + 20-30% (dimethicone / (PEG-10 / 15)) crosspolymer (Note 2) Shin-Etsu Chemical Co., Ltd.: Mixture of 90-96% cyclopentasiloxane + 4-10% (dimethicone / vinyl dimethicone) crosspolymer (Note 3) Shin-Etsu Chemical Co., Ltd.: PEG-9 polydimethylsiloxyethyl dimethicone

[0138] (Production method) A: Components 1 to 6 were mixed uniformly. B: Components 9 to 13 were mixed uniformly. C: While stirring, C was added to the mixture obtained in B and emulsified, and components 7 and 8 were added to obtain a water-in-oil sunscreen emulsion. The sunscreen emulsion obtained in this manner was highly stable and transparent, had a good non-sticky feel when used, and was excellent in water resistance.

[0139] Example 32 Sunscreen Emulsion (Shaking) Composition % 1. Dimethylpolysiloxane (1.5 cs) 22.5 2. Dimethylpolysiloxane (6 cs) 2 3. Cyclopentasiloxane 7 4. KSG-18A (Note 1) 3 5. KF-6038 (Note 2) 2 6. Ethylhexyl methoxycinnamate 7.5 7. Diethylaminohydroxybenzoylhexyl benzoate 1 8. Octocrylene 2.5 9. Disteardimonium hectorite 1 10. KP-545 (Note 3) 2 11. KSP-105 (Note 4) 0.5 12. Dispersion of Example 6 5 13. Dispersion of Example 17 10 14. BG 3 15. Sodium citrate 0.2 16. Sodium chloride 0.5 17. Ethanol 5 18. Water 25.3 Total 100.0 (Note 1) Shin-Etsu Chemical Co., Ltd.: Mixture of 80-90% diphenylsiloxyphenyl trimethicone + 10-20% (dimethicone / phenyl vinyl dimethicone) crosspolymer (Note 2) Shin-Etsu Chemical Co., Ltd.: Lauryl PEG-9 polydimethylsiloxyethyl dimethicone (Note 3) Shin-Etsu Chemical Co., Ltd.: Dissolved product of 70% cyclopentasiloxane + 30% (acrylates / dimethicone) copolymer (Note 4) Shin-Etsu Chemical Co., Ltd.: (vinyl dimethicone / methicone silsesquioxane) crosspolymer (Note 5) Shin-Etsu Chemical Co., Ltd.: Dispersion of 40% fine titanium dioxide particles in cyclopentasiloxane (Note 6) Shin-Etsu Chemical Co., Ltd.: Dispersion of 60% fine zinc oxide particles in cyclopentasiloxane

[0140] (Production Method) A: Components 1 to 10 were mixed uniformly. B: Component 11 was added to the mixture obtained in A and dispersed uniformly. C: Components 14 to 17 were added to component 18 and dissolved. D: The mixture obtained in C was gradually added to the mixture obtained in B and emulsified, after which components 12 and 13 were added to obtain a sunscreen emulsion. The sunscreen emulsion obtained in this manner spread easily, was light and non-sticky, did not change with temperature or over time, and was found to have excellent usability and stability.

[0141] Example 33 A dispersion was prepared in the same manner as in Example 1, except that component (A) was changed to KF-4418 (caprylyl methicone) manufactured by Shin-Etsu Chemical Co., Ltd., the preliminary dispersion of Production Example 1 was changed to the preliminary dispersion of Production Example 2, and the concentration of component (D) was adjusted to 1,000 ppm. The viscosity change rate of the resulting dispersion after 2 weeks at 25°C was less than 200%.

[0142] Example 34 Sun Care Stick Composition % 1. Dispersion of Example 33 6 2. KF-56A (Note 1) Rest 3. KMP-592 (Note 2) 0.5 4. Diisopropyl sebacate 10 5. Ethylhexyl methoxycinnamate 7.5 6. Octocrylene 2.5 7. Diethylamino hydroxybenzoyl hexyl benzoate 5 8. Ethylhexyl salicylate 5 9. Bis-ethylhexyloxyphenol methoxyphenyl triazine 3 10. Polysilicone-15 2 11. Homosalate 10 12. Dibutyl lauroyl glutamide 3.5 13. Octyldodecanol 10 14. Mineral oil 2 Total 100 (Note 1) Shin-Etsu Chemical Co., Ltd.: Diphenylsiloxyphenyl dimethicone (Note 2) Shin-Etsu Chemical Co., Ltd.: (Methyl / phenyl) polysilsesquioxane

[0143] (Production Method) A: Components 1 to 14 were mixed uniformly at 110°C and filled into a stick container to obtain a sun care stick. The resulting sun care stick spread easily, was smooth and non-sticky, and showed no change with temperature or over time, demonstrating excellent usability and stability.

[0144] [Example 35] W / O Stick Primer Composition % 1. KSG-830 (Note 1) 5 2. KSG-45 (Note 2) 5 3. KF-6105 (Note 2) 0.5 4. Meadowfoam oil 2 5. KF-56A (Note 3) 6 6. Ceresin 9 7. BG 7 8. PCA-Na 2 9. Diglycerin 3 10. Sodium citrate 0.2 11. Magnesium sulfate 1 12. Water Balance 13. Dispersion of Example 17 5 14. Dispersion of Example 19 5 15. Dispersion of Example 23 5 16. KSP-300 0.5 Total 100 (Note 1) Shin-Etsu Chemical Co., Ltd.: A mixture of 20% (lauryl dimethicone / polyglycerin-3) crosspolymer and 80% triethylhexanoin (Note 2) Shin-Etsu Chemical Co., Ltd.: A mixture of 35% (vinyl dimethicone / lauryl dimethicone) crosspolymer and 65% (coconut alkyl caprylate / caprate) (Note 3) Shin-Etsu Chemical Co., Ltd.: Lauryl PEG-9 polydimethylsiloxyethyl dimethicone (Note 4) Shin-Etsu Chemical Co., Ltd.: Diphenylsiloxyphenyl trimethicone

[0145] (Production method) A: Components 1 to 6 were mixed uniformly at 90°C. B: Components 7 to 12 were mixed uniformly at 85°C. C: The mixture obtained in B was added to the mixture obtained in A and emulsified, and then components 13 to 16 were added and mixed, and the mixture was filled into a stick container to obtain a W / O stick base. The obtained W / O stick base spread easily, was smooth and non-sticky, and showed no change with temperature or over time, demonstrating excellent usability and stability.

Claims

1. A dispersion containing the following components (A), (B), (C) and (D): (A) a kinetic viscosity of 1 to 100 mm at 25°C; 2 (B) Non-volatile oil agent: 15 to 65 mass% (B) Powder: 30 to 70 mass% (C) Dispersant soluble in component (A): 1 to 15 mass% (D) Volatile component selected from lower alcohols and volatile oil agents having a boiling point of 250°C or less: 100 ppm to 10 mass% 2. The dispersion according to claim 1, wherein component (B) dispersed in components (C) and (D) is further dispersed in component (A).

3. The dispersion according to claim 1, in which the change in viscosity after 2 weeks at 25° C. is less than 250% compared to the viscosity immediately after preparation.

4. The dispersion according to claim 1, wherein the component (A) is at least one selected from the group consisting of ester oil, phenyl silicone and alkyl silicone.

5. The dispersion according to claim 1, wherein the average primary particle size of said component (B) is 8 to 200 nm.

6. The dispersion according to claim 1, wherein said component (B) is finely divided titanium oxide particles treated for hydrophobization.

7. The dispersion according to claim 1, wherein said component (C) is a silicone surfactant.

8. The dispersion according to claim 1, wherein said component (D) comprises one or more members selected from the group consisting of isododecane, undecane, tridecane, cyclopentasiloxane, disiloxane, trisiloxane, dimethicone and methyltrimethicone.

9. A method for producing the dispersion according to any one of claims 1 to 8, comprising the steps of: dispersing component (B) with components (C) and (D) to obtain a preliminary dispersion; and mixing the preliminary dispersion thus obtained with component (A).

10. A cosmetic preparation containing the dispersion according to any one of claims 1 to 8.

11. The cosmetic according to claim 10, which is an oil-in-water cosmetic.

12. The cosmetic material according to claim 10, further comprising (E) an organic ultraviolet absorber.

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