Aqueous dispersion and cosmetic containing same

Abstract

This aqueous dispersion has excellent dispersibility in aqueous media, exhibits excellent finish and coatability, and contains: (a) 10 to 80 mass% hydrophobic zinc oxide fine particles that have been subjected to hydrophobization treatment with silicone and that have a number-average primary particle diameter of 8 to 200 nm as determined by image analysis of transmission electron microscope images; (b) 1 to 50 mass% aqueous component having at least two alcoholic hydroxyl groups; and (c) 1 to 20 mass% polyglycerin-modified silicone dissolved in the component (b).

Description

Aqueous dispersion and cosmetic containing same

[0001] The present invention relates to an aqueous dispersion containing hydrophobized zinc oxide fine particles, and a cosmetic preparation containing this aqueous dispersion.

[0002] In general, fine inorganic powders such as titanium oxide and zinc oxide are widely used in sunscreen cosmetics to improve transparency and enhance UV-shielding effects (Patent Document 1). However, as the surface area of ​​these inorganic powders increases, the interactions between the particles become stronger, resulting in the powders being prone to aggregation.

[0003] These fine inorganic powders may be subjected to hydrophobic surface treatment for the purpose of blending them into the oil phase of cosmetics or for improving their water resistance. By incorporating such hydrophobically surface-treated powders, it is expected that the UV-shielding effect can be maintained even when wet (Patent Documents 2 to 4). On the other hand, when blending fine inorganic powders into an aqueous phase, powders that have been hydrophilically surface-treated with silica or the like may be used. However, these hydrophilized powders have issues with water resistance and usability. Furthermore, as a method for dispersing hydrophobized powders in water, aqueous dispersions of hydrophobized zinc oxide fine particles using polyether-modified silicone have been investigated. However, these aqueous zinc oxide dispersions have issues with water resistance and finish. Furthermore, aqueous zinc oxide dispersions have not been thoroughly compared and studied (Patent Document 5).

[0004] In addition, dispersions containing nonionic surfactants have been investigated, but sufficient dispersibility has not been achieved (Patent Document 6). For these reasons, there has been a demand for aqueous dispersions that provide a good feel when used in cosmetics.

[0005] Japanese Patent Application Laid-Open No. 2006-1886 Japanese Patent Application Laid-Open No. 2014-201569 International Publication No. 2016 / 178380 Japanese Patent Application Laid-Open No. 2020-002031 International Publication No. 2015 / 125622 Japanese Patent Application Laid-Open No. 7-247119

[0006] The present invention has been made in view of the above circumstances, and aims to provide an aqueous dispersion that has excellent dispersibility in aqueous media and excellent finish and application properties, and also aims to provide a cosmetic that incorporates this aqueous dispersion and has excellent transparency and a feeling of use (non-stickiness).

[0007] As a result of intensive research to achieve the above object, the present inventors have found that an aqueous dispersion can be obtained that has excellent dispersibility in aqueous media and excellent finish and application properties. They have also found that when this dispersion is used in cosmetics, the cosmetics are easy to dispense and have excellent transparency, usability, and water resistance, and have thus completed the present invention.

[0008] Accordingly, the present invention provides an aqueous dispersion and a cosmetic preparation containing the same. 1. An aqueous dispersion comprising: (a) 10 to 80 mass% of hydrophobic zinc oxide microparticles, the zinc oxide particles having a number-average primary particle diameter of 8 to 200 nm as determined by image analysis of transmission electron micrographs using a silicone, and the zinc oxide particles having been hydrophobized with a silicone; (b) 1 to 50 mass% of an aqueous component having two or more alcoholic hydroxyl groups; and (c) 1 to 20 mass% of a polyglycerin-modified silicone soluble in component (b). 2. The aqueous dispersion according to 1, wherein the total content of components (a), (b), and (c) in the aqueous dispersion is 90 mass% or more. 3. The aqueous dispersion according to 1 or 2, wherein component (a) is hydrophobic zinc oxide microparticles obtained by treating hydrated silica-coated zinc oxide particles with a silicone. 4. The aqueous dispersion according to any one of 1 to 3, wherein the silicone in component (a) is triethoxycaprylylsilane. 5. The aqueous dispersion according to any one of 1 to 4, wherein component (b) is an aqueous component having two alcoholic hydroxyl groups. 6. The aqueous dispersion according to any one of 1 to 5, wherein component (c) is a component insoluble in water. 7. The aqueous dispersion according to any one of 1 to 6, wherein component (c) is polyglyceryl-3 disiloxane dimethicone. 8. The aqueous dispersion according to any one of 1 to 7, wherein the mass ratio (c) / (b) of the content of component (c) to the content of component (b) is 0.2 to 0.9. 9. The aqueous dispersion according to 1, further comprising (d) water: 8 to 82 mass%, and wherein the total content of components (a), (b), (c), and (d) in the aqueous dispersion is 90 mass% or more. 10. A cosmetic preparation comprising the aqueous dispersion according to any one of 1 to 9. 11. The cosmetic preparation according to 10, wherein the cosmetic preparation is an emulsion, the aqueous phase contains an aqueous dispersion, and the aqueous phase does not contain (e) hydrophobized titanium oxide microparticles having a number average primary particle diameter of 8 to 200 nm as measured by image analysis of transmission electron micrographs, and which have been hydrophobized. 12. The cosmetic preparation according to 10, wherein the cosmetic preparation is an emulsion, the aqueous phase contains an aqueous dispersion, and the oil phase contains (e) hydrophobized titanium oxide microparticles having a number average primary particle diameter of 8 to 200 nm as measured by image analysis of transmission electron micrographs, and which have been hydrophobized.13. The cosmetic according to claim 10, wherein the cosmetic is an emulsion, the aqueous dispersion is blended in the aqueous phase, and the aqueous phase contains a hydrophobized titanium oxide microparticle dispersion containing: (e) hydrophobized titanium oxide microparticles having a number average primary particle diameter of 8 to 200 nm as measured by image analysis of transmission electron micrographs, and which have been hydrophobized; (b) an aqueous component having two or more alcoholic hydroxyl groups; and (c) a polyglycerin-modified silicone that dissolves in component (b).

[0009] According to the present invention, an aqueous dispersion having excellent dispersibility in an aqueous medium and excellent application properties can be obtained, and when this dispersion is used as a cosmetic dispersion, it is easy to dispense and can provide a cosmetic having excellent transparency, usability, and water resistance.

[0010] The present invention will be described in detail below. 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 the English name may be omitted.

[0011] [Component (a)] Component (a) of the present invention is a hydrophobic zinc oxide microparticle having a number-average primary particle diameter of 8 to 200 nm as determined by image analysis of transmission electron micrographs. The zinc oxide particles are hydrophobized with silicone. The component (a) may be a composite powder with other powders, and may be used singly or in combination of two or more. Ultraviolet rays are classified into long-wavelength ultraviolet rays (UVA) with wavelengths of 320 to 400 nm, medium-wavelength ultraviolet rays (UVB) with wavelengths of 290 to 320 nm, and short-wavelength ultraviolet rays (UVC) with wavelengths of 290 nm or less. Of these, UVA and UVB reach the earth, while UVB is known to cause erythema and the like, and UVA causes immediate skin darkening and the like. Generally, titanium oxide has a high UVB blocking effect but insufficient UVA blocking effect. On the other hand, zinc oxide is known to have a high UVA blocking effect. Therefore, when blending a fine inorganic powder into a cosmetic composition in order to achieve a high UVA blocking effect, zinc oxide is effective. The present invention makes it possible to provide an aqueous dispersion containing zinc oxide and having excellent dispersibility in an aqueous medium.

[0012] The zinc oxide particles may be surface-treated with silica, hydrous silica, alumina, etc. before being hydrophobized in order to reduce agglomeration or suppress the activity of the powder. Among these, hydrous silica-coated zinc oxide particles coated with hydrous silica are preferred.

[0013] Examples of silicones used in the hydrophobic treatment include silanes or silylating agents such as triethoxycaprylylsilane (AES-3083, manufactured by Shin-Etsu Chemical Co., Ltd.), methylhydrogen-type polysiloxanes such as dimethicone (KF-96 series, manufactured by Shin-Etsu Chemical Co., Ltd.), hydrogen dimethicone (KF-99P, KF-9901, etc., manufactured by Shin-Etsu Chemical Co., Ltd.), and branched silicones such as triethoxysilylethyl polydimethylsiloxyethyl dimethicone and triethoxysilylethyl polydimethylsiloxyethyl hexyl dimethicone (KF-9908, KF-9909, etc., manufactured by Shin-Etsu Chemical Co., Ltd.). In particular, components containing one or more selected from triethoxycaprylylsilane, hydrogen dimethicone, and dimethicone are preferred in terms of the hydrophobic treatment and dispersibility with component (c). Among them, triethoxycaprylylsilane and dimethicone are preferred, and triethoxycaprylylsilane is more preferred from the viewpoint of compatibility. The hydrophobic treatment method is not particularly limited, and can be performed by a known method. For example, a wet treatment method, a dry treatment method, a gas phase method, etc. can be mentioned.

[0014] Commercially available surface-treated inorganic fine particles can also be used, such as MZ-306X, 506X, MZY-203S, 210M3S, TMZ-HA1, MZX-203OTS, 304OTS, 5080TS, MZN-A1, ZEC-1, MZX-300M, and 505HPS (manufactured by Teika), FINEX-50W-LP2, 52W-LP2, 30W-LP2, 33W-LP2, 50W-LP2, 25-LPT, 30S-LP2, and 50S-LPT (manufactured by Sakai Chemical Industry Co., Ltd.), and ZNO These are commercially available under trade names such as XZ-11S3L, ZnO-660SS-11S5, ZNO-660-ASGP7, MZO-35-11S5, MZO-35-I3, MZO-35-NOE7, ZnO-750-11SP, ZNO-750-ASG5, ZnO-750-ASGP6, ZnO-750-NJE7, ZNO FSF-11S4, A120-ZNO-11S3, and ZnO-USP1-I2 (manufactured by KOBO).

[0015] The number-average primary particle diameter of component (a) measured by image analysis of a transmission electron microscope photograph is 8 to 200 nm, preferably 10 to 150 nm, and more preferably 20 to 100 nm. If it exceeds 200 nm, the UV protection function will be reduced and white residue will remain. If the particle diameter is less than 8 nm, the product may feel too dry and have a poor feel when used. The average primary particle diameter of component (a) of the present invention is the average diameter of 200 particles measured by image analysis of a transmission electron microscope photograph. If the powder is not spherical, the average value of the minor axis and major axis of the particles is taken as the average primary particle diameter.

[0016] The content of component (a) in the aqueous dispersion is 10 to 80% by mass, and from the viewpoint of usability, it is preferably 20 to 75% by mass, more preferably 25% by mass or more, even more preferably 30% by mass or more, and particularly preferably 50% by mass or more. On the other hand, it is more preferably 70% by mass or less, and even more preferably 65% ​​by mass or less. If the content is less than 10% by mass, a sufficient UV-shielding effect cannot be obtained, and if it is blended in at more than 80% by mass, there is a risk that the spreadability during use will deteriorate, the stability of the dispersion over time will decrease, and the viscosity will increase.

[0017] [Component (b)] The component (b) of the present invention is an aqueous component having two or more alcoholic hydroxyl groups, i.e., a component that dissolves in water at 25° C., and can be used alone or in combination of two or more. Alcohols with one hydroxyl group, such as ethanol and propanol, do not provide sufficient water dispersibility. Specific examples of component (b) include sorbitol (INCI), maltose (INCI), xylitol (INCI), glucose (INCI), glyceryl glucoside (INCI), sodium chondroitin sulfate (display name (INCI: Sodium Chondroitin Sulfate)), methyl gluceth-10 (INCI), methyl gluceth-20 (INCI), hyaluronic acid, sugar alcohols such as phosphatidylglycerol and phosphatidylinositol, BG (display name (INCI: Butylene Glycol)), PG (display name (INCI: Propylene Glycol)), DPG (display name (INCI: Dipropylene Glycol)), and the like. Glycol), pentylene glycol (INCI), 1,10-decanediol (INCI), octanediol (INCI), 1,2-hexanediol (INCI), and other glycols; and polyhydric alcohols such as erythritol (INCI), glycerin (INCI), diglycerin (INCI), and polyethylene glycol. Of these, glycols such as BG (butylene glycol) and DPG (dipropylene glycol), and polyhydric alcohols such as glycerin are preferred because they dissolve in water in any proportion, and furthermore, in terms of usability and versatility as a cosmetic ingredient. In particular, glycols, which are aqueous components having two alcoholic hydroxyl groups in the molecule, are more preferred.

[0018] The content of component (b) in the aqueous dispersion is 1 to 50% by mass, preferably 5 to 25% by mass, and more preferably 7 to 15% by mass from the viewpoint of water resistance. From the viewpoint of stability over time, 15 to 25% by mass is even more preferable, and 15 to 20% by mass is particularly preferable. If the content is less than 1% by mass, the stability of the dispersion deteriorates. If the content exceeds 50% by mass, when the component (b) is incorporated into a cosmetic, the cosmetic may feel sticky in use. Furthermore, component (b) may inhibit the orientation of component (c) (described below) in component (a), which may increase viscosity or impair dispersibility in an aqueous medium. By incorporating component (b), component (c) can be uniformly oriented on the surface of component (a).

[0019] [Component (c)] Component (c) of the present invention is a polyglycerin-modified silicone that dissolves in component (b) and can be used alone or in combination of two or more. By using a polyglycerin-modified silicone that dissolves in component (b), the polyglycerin-modified silicone can be incorporated into water and function as a dispersant for hydrophobic zinc oxide microparticles in water. Note that "soluble in component (b)" refers to a transparent to translucent state without a boundary when component (c) is mixed with component (b) at a concentration of 20% by mass and then allowed to stand at 25°C for 1 hour. Alternatively, "insoluble" refers to a state where the mixture becomes cloudy or separates into two layers. Furthermore, "transparent to translucent" refers to a total light transmittance of 50% or greater when the mixture is filled into a 1 cm thick cell and measured according to the method described in JIS K7361-1:1997. Note that polyglycerin-modified silicones that do not dissolve in component (b) do not qualify as component (c) of the present invention.

[0020] In terms of chemical structure, the polyglycerin-modified silicone may be block-modified or graft-modified with polyglycerin on the silicone main chain. From the viewpoint of maintaining uniform dispersibility of component (a) in the cosmetic, a branched chain type is preferably used, and the silicone main chain may have a branched chain such as a silicone chain. Specific examples include polyglyceryl-3 disiloxane dimethicone (labeled name (INCI: Polyglyceryl-3 Disiloxane Dimethicone)). From the viewpoint of water resistance, component (c) is preferably one that dissolves at 25°C when mixed in butylene glycol (BG) at a concentration of 20% by mass, and does not dissolve when mixed in water at a concentration of 20% by mass using the above method. The polyglycerin-modified silicone of the present invention may be co-modified with hydrophilic groups other than polyglycerin groups, but at least 50% by mass of the hydrophilic groups are polyglycerin groups. From the viewpoint of water resistance, silicones modified only with polyglycerin groups are preferred.

[0021] Furthermore, the polyglycerin-modified silicone used in the present invention preferably has an HLB (Hydrophile-Lipophile Balance) value of 3 or more and less than 17, more preferably 5 or more and less than 15, and even more preferably 8 or more and less than 12. A value of 3 or more further improves dispersibility, and a value less than 17 further improves water resistance. In the present invention, the HLB is calculated by "(sum of formula weights of hydrophilic group moieties / total molecular weight) x 20".

[0022] The content of component (c) in the aqueous dispersion is 1 to 20% by mass, preferably 3 to 15% by mass, more preferably 4 to 10% by mass, and even more preferably 5 to 8% by mass. If the content is less than 1% by mass, the stability of the dispersion may be impaired. If the content exceeds 20% by mass, the component (c) may be further oriented to the component (a) or the component (c) that is not oriented to the component (a) may be easily peeled off. As a result, the viscosity of the dispersion may increase, and the dispersibility in an aqueous medium may be affected.

[0023] Furthermore, the mass ratio (c) / (b) of the content of component (c) to the content of component (b) is preferably 0.2 to 0.9. In terms of dispersibility and water resistance, a ratio of 0.2 to 0.5 is more preferable, and 0.2 to 0.35 is even more preferable. By setting this ratio to 0.2 or more, component (c) is more likely to orient toward component (a), preventing an increase in viscosity and further improving stability. On the other hand, by setting it to 0.9 or less, component (c) is dispersed by the dispersion medium, is more likely to orient toward component (a), preventing an increase in viscosity and further improving stability.

[0024] The total content of components (a), (b), and (c) in the aqueous dispersion is preferably 90% by mass or more, more preferably 95% by mass or more, and even more preferably 99% by mass or more. When component (d), which will be described later, is not blended, the upper limit may be 100% by mass. By making the total content 90% by mass or more, the influence of components other than components (a), (b), and (c) is reduced, and a dispersion with better stability and usability can be obtained.

[0025] [Component (d)] The aqueous dispersion of the present invention may contain water, such as ion-exchanged water, distilled water, deionized water, purified water as defined in the Japanese Pharmacopoeia, hot spring water, deep sea water, or plant extract water.

[0026] When component (d) is blended, the amount is preferably 8 to 82 mass% of the aqueous dispersion, more preferably 18 to 72 mass%, and even more preferably 28 to 40 mass%. Blending component (d) can reduce the viscosity of the aqueous dispersion. From the viewpoint of the stability over time of the aqueous dispersion, an amount of 82 mass% or less is preferred.

[0027] When the component (d) is blended, the total content of the components (a), (b), (c), and (d) in the aqueous dispersion is preferably 90% by mass or more, more preferably 95 to 100% by mass, and even more preferably 99 to 100% by mass. By making the total content of the components (a), (b), (c), and (d) 90% by mass or more, the influence of components other than the components (a), (b), (c), and (d) is reduced, and a dispersion with better stability and usability can be produced.

[0028] An antifoaming agent may be added to the aqueous dispersion for the purpose of improving handleability during preparation, filling, etc. Examples of antifoaming agents include salts such as simethicone (INCI), dimethicone (INCI), sodium chloride (labeled name (INCI: Sodium Chloride)), polyether-modified silicone, etc. Furthermore, oil-based agents such as dimethicone may be used as a pre-emulsified emulsion type, and compound-based agents such as simethicone may be used as a self-emulsifying type pre-mixed with a silicone surfactant, etc. Among these, simethicone and sodium chloride are particularly preferred in terms of foam-breaking and foam-suppressing properties, and simethicone is preferred in terms of affinity with cosmetic ingredients. When an antifoaming agent is incorporated, the amount is preferably 0.0001 to 1% by mass, more preferably 0.0025 to 0.6% by mass, and even more preferably 0.005 to 0.01% by mass in the aqueous dispersion.

[0029] [Aqueous Dispersion] The aqueous dispersion of the present invention can be easily incorporated into an aqueous medium. The "dispersion" in "aqueous dispersion" refers to a composition containing 8 to 99% by mass of water, in which temporary settling is observed in the dispersibility test described in the Examples below, but the dispersion becomes uniform upon continued stirring.

[0030] [Form of aqueous dispersion] The dispersion of the present invention is preferably liquid with a viscosity of 10 mPa·s or more but less than 200,000 mPa·s, more preferably 10 mPa·s or more but less than 10,000 mPa·s, and even more preferably 10 mPa·s or more but less than 5,000 mPa·s. By making the viscosity 10 mPa·s or more, the stability of the dispersion is further improved. On the other hand, from the viewpoint of handleability, a viscosity of 200,000 mPa·s or less is preferable. The viscosity is measured at 25°C using a B-type viscometer (TVB-10 model, manufactured by Toki Sangyo Co., Ltd.) according to the method described in JIS K 7117-1:1999.

[0031] The hardness of the paste-like dispersion is not particularly limited, but when produced using a three-roll mill, a hardness of 100 or less is preferred from the viewpoint of ease of processing. Furthermore, from the viewpoint of ease of incorporation into cosmetics, a hardness of less than 80 is more preferred, and less than 50 is even more preferred. There is no particular limit to the lower limit, but by setting the hardness to 5 or more, it is easy to suppress separation of light and dark in the dispersion. The hardness indicates a value measured using a rheometer, for example, a Rheometer RT-2002D-D (manufactured by Rheotec Corporation, measurement probe: 5 mmφ, penetration depth: 10 mm, sample stage rising speed: 5 cm / min, temperature: 25°C, range: 200).

[0032] [Method for producing aqueous dispersion] When preparing the aqueous dispersion of the present invention, the method and apparatus therefor are not particularly limited, and known methods can be used. For example, any stirrer, grinder, mixer, medium stirrer, planetary mixer, ribbon blender, disperser, homomixer, jet mill, roll mill, bead mill, high-pressure disperser, etc. can be used. From the viewpoint of mixing efficiency, it is preferable to use a bead mill or high-pressure disperser for dispersion.

[0033] [Cosmetics] The aqueous dispersion of the present invention can be used for various purposes, but is particularly applicable as a raw material for all cosmetics that are applied externally to the skin or hair.

[0034] The blending amount of the aqueous dispersion of the present invention in the cosmetic is preferably 0.5 to 60% by mass, more preferably 1.0 to 50% by mass, and even more preferably 5.0 to 40% by mass. By making it 0.5% by mass or more, a sufficient ultraviolet protection effect can be expected, and by making it 60% by mass or less, the feeling in use can be further improved.

[0035] The form of a cosmetic containing the aqueous dispersion of the present invention is not particularly limited, but is preferably, for example, an aqueous cosmetic (a cosmetic whose base is composed of aqueous components (water, water-soluble components, water-dispersible components)) or an emulsion. The emulsion may be any of a W / O (water-in-oil) emulsion cosmetic, an O / W (oil-in-water) emulsion cosmetic, a W / O / W emulsion, an O / W / O emulsion, or other multi-emulsion. A W / O emulsion cosmetic is preferred in terms of water resistance. In particular, when used as a dispersion of an O / W emulsion cosmetic, it is easy to dispense and a stable cosmetic having excellent transparency, usability, and water resistance can be obtained.

[0036] [Component (e)] The cosmetic of the present invention is expected to be able to block light of short wavelengths by incorporating hydrophobized titanium oxide microparticles (e) having a number-average primary particle diameter of 8 to 200 nm as determined by image analysis of transmission electron micrographs, thereby enabling the production of a cosmetic with a stronger UV-blocking effect. The hydrophobization treatment may be carried out using any known treatment agent commonly used in cosmetics, including the silicone treatment of zinc oxide described above. Examples of the hydrophobization treatment include 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 and magnesium myristate. In particular, one or more selected from stearic acid, isostearic acid, and triethoxycaprylylsilane may be used. The hydrophobization treatment method is not particularly limited, and any known treatment method may be used. Examples include wet treatment, dry treatment, and gas-phase treatment.

[0037] Titanium oxide fine particles may be surface-treated with silica, hydrous silica, alumina, aluminum hydroxide, etc. before hydrophobization treatment in order to reduce cohesion or suppress the activity of the powder. Note that alumina and aluminum hydroxide are not preferred as surface treatment agents when blended into cosmetics, as they may inhibit the swelling of the water-soluble polymer compound used in combination or may reduce water resistance. Hydrous silica-coated titanium oxide particles, which have been surface-treated with hydrous silica, are preferred because they suppress the activity of the powder and are less likely to inhibit the swelling of the water-soluble polymer. Note that "coated" refers to covering part or all of the titanium oxide particles.

[0038] Commercially available titanium oxide particles that have undergone these surface treatments can also be used. For example, they are commercially available under the trade names MT-01, 02, 050OTS, 100Z, 100TV, 100SAS, 150EX, 200ST, 500SAM, 505SAS, 700Z, 700BS, N1, and 500CST (manufactured by Teika Co., Ltd.), ST-455, 455WS, 457ECS, 457SA, 495M, and 455FA (manufactured by Titanium Kogyo Co., Ltd.), and STR-100A-LP, 100C-LP, 100W-LP, 100C-LF, and 40-LP (manufactured by Sakai Chemical Industry Co., Ltd.). An example of hydrophobic titanium oxide particles obtained by hydrophobizing hydrous silica-coated titanium oxide particles is STR-100W-LP.

[0039] The number-average primary particle diameter of component (e) measured by image analysis of a transmission electron microscope photograph is 8 to 200 nm, preferably 10 to 150 nm. If the particle diameter exceeds 200 nm, the UV protection function may be reduced and white residue may remain, while if the particle diameter is less than 10 nm, the product may feel too dry and have a poor feel when used. The average primary particle diameter of component (e) of the present invention is the average diameter of 200 particles measured by image analysis of a transmission electron microscope photograph. When the powder is not spherical, the average primary particle diameter is defined as the average value of the minor axis of the particles. Examples of the shape of the fine particle titanium dioxide include spindle-shaped, needle-shaped, straw-like, rectangular, approximately spherical, and rod-shaped.

[0040] When the above-mentioned component (e) is blended, the amount of the component (e) in the cosmetic is preferably 1 to 30% by mass, more preferably 5 to 15% by mass. When the component (e) is blended, it is preferable that the component (e) is dispersed in an oil agent in advance.

[0041] When the aqueous dispersion of the present invention is incorporated into an emulsion, it is preferably incorporated into the aqueous phase. When the aqueous dispersion of the present invention is incorporated into an aqueous cosmetic or emulsion, particularly a water-in-oil (W / O) cosmetic, from the viewpoint of the transparency and usability of the cosmetic, it is preferable not to incorporate the above-mentioned component (e) into the aqueous phase, and it is more preferable to incorporate it into the oil phase. This can prevent hetero-aggregation of (a) titanium oxide and (e) zinc oxide in the aqueous dispersion, which would deteriorate the stability and usability.

[0042] When component (e) is incorporated, it can be incorporated as an aqueous dispersion in which it is pre-dispersed with the above components (b), (c), and (e), or pre-dispersed with the above components (b), (c), (d), and (e), as in the aqueous dispersion of the present invention. Specifically, by incorporating a hydrophobized titanium oxide microparticle dispersion containing: (e) hydrophobized titanium oxide microparticles having a number-average primary particle diameter of 8 to 200 nm as determined by image analysis of transmission electron micrographs; (b) an aqueous component having two or more alcoholic hydroxyl groups; and (c) a polyglycerin-modified silicone that dissolves in component (b), the UV-shielding effect can be further improved, and the cosmetic composition can also achieve transparency, usability, and water resistance. It is preferable that the hydrophobized titanium oxide microparticle dispersion be an aqueous dispersion.

[0043] The content of (e) in the dispersion is preferably 10 to 80% by mass, more preferably 10 to 70% by mass, and from the viewpoint of usability, even more preferably 10 to 65% by mass, particularly preferably 15 to 60% by mass, and most preferably 20 to 55% by mass. From the viewpoint of UV screening effect, 10% by mass or more is preferable. If the content exceeds 80% by mass, there is a risk of poor spreadability during use, a decrease in the stability of the dispersion over time, and an increase in viscosity. The preferred components and amounts of components (b), (c), and (d) are the same as those for the aqueous dispersion described above. In particular, when an aqueous dispersion containing component (e) is prepared, it is preferable that (b) be in the range of 1.0 to 30% by mass and (c) be in the range of 1.0 to 20% by mass.

[0044] The cosmetic of the present invention can be in a variety of forms, including liquid, emulsion, cream, solid, paste, gel, powder, pressed, multi-layered, mousse, spray, stick, and pencil form. Multi-layered cosmetic preparations are those that separate into two or more layers upon standing. They are filled into a container containing a stainless steel ball or the like and are used after shaking. These are called "shaking types," and are easily stabilized, resulting in cosmetic preparations with an excellent feel in use, but require the time and effort of shaking. The aqueous dispersion of the present invention has good dispersibility, making it easy to redisperse even in this formulation. Since the cosmetic of the present invention is preferably stable, it can be used without separating into multiple layers. Sprayed cosmetic preparations are sprayed into dispenser containers, aerosol containers, etc., and used by spraying from a nozzle. The cosmetic filled into the dispenser container is sprayed in the form of a mist from the dispenser nozzle. The aerosol container is filled with the cosmetic and a propellant. The propellant is not particularly limited, and examples thereof include various liquefied petroleum gases (LPG), dimethyl ether, nitrogen gas, carbon dioxide gas, etc. These may be used alone or in appropriate combinations of two or more. Because the aqueous dispersion of the present invention has high dispersibility, it can also be used in such formulations. The pH, viscosity, etc. of the cosmetic preparation are appropriately selected depending on the formulation.

[0045] The aqueous dispersion of the present invention can be applied to various cosmetics, but is particularly preferably used in cosmetics applied to the skin, such as skin care cosmetics, makeup cosmetics, antiperspirant cosmetics, and UV protection cosmetics, and cosmetics applied to the hair, such as hair 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, concealers, face powders, powder foundations, eye color, eye shadow, mascara, eyeliner, eyebrow pencils, and lipsticks. Examples of antiperspirant cosmetics include roll-on, cream, solution, and stick-type antiperspirant cosmetics. Examples of UV protection cosmetics include sunscreen oils, sunscreen emulsions, and sunscreen creams. Examples of hair cosmetics include shampoos, rinses, treatments, and setting agents. Among these, UV protection cosmetics are preferred. The pH, viscosity, etc. of the cosmetic preparation are appropriately selected depending on the formulation.

[0046] 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 other than components (b) and (d), (3) a surfactant other than component (c), (4) a powder other than component (a), (5) a composition comprising a crosslinked organopolysiloxane and an oil that is liquid at room temperature, (6) a film-forming agent, and (7) other additives. These may be used alone or in appropriate combinations of two or more. Components contained in the dispersion described above may also be incorporated. However, blending components (a) to (d) of the present invention without blending the dispersion of the present invention will not achieve the significant effects aimed at by the present invention. The amounts of components (a) to (d) other than the dispersion are not particularly limited as long as they do not impair the effects of the present invention. When blended separately from the dispersion into a cosmetic, the blending amount of component (a) excluding the amount in the dispersion is preferably 0.0 to 20% by mass, more preferably 0.0 to 10% by mass, of the cosmetic. The blending amount of component (b) in the cosmetic is preferably 0.0 to 70% by mass, more preferably 0.0 to 50% by mass, and even more preferably 0.0 to 25% by mass. The blending amount of component (c) in the cosmetic is preferably 0.0 to 3.0% by mass, and more preferably 0.0 to 1.0% by mass. The dispersion of the present invention is highly stable, and when blended in a cosmetic, it does not inhibit the performance of the emulsifier or dispersant in the cosmetic, so that the amount of component (c) other than the dispersion can be reduced.

[0047] (1) Oil Agent The oil agent may be volatile or non-volatile, and may be solid, semi-solid, or liquid at room temperature (25°C). Examples of the oil agent include silicone oil, solid oil components, natural animal and vegetable oils and semi-synthetic oils, hydrocarbon oils, higher alcohols, fatty acids, ester oils, fluorine-based oil agents, and ultraviolet absorbers.

[0048] 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), low- 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 silicone oils. Examples of the organic solvent include cyclic organopolysiloxanes such as cyclohexasiloxane (INCI), amino-modified organopolysiloxanes such as amodimethicone (INCI) and aminopropyl dimethicone (INCI), pyrrolidone-modified organopolysiloxanes such as PCA dimethicone (INCI), antifoaming agents such as simethicone (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.

[0049] Examples of commercially available silicone oils include KF-96L-1cs, KF-96L-1.5cs, KF-96L-2cs, KF-96A-6cs, KF-4422, KF-4418, KF-54, KF-54HV, KF-56A, and KF-995 manufactured by Shin-Etsu Chemical Co., Ltd.

[0050] 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 (Shin-Etsu Chemical Co., Ltd.: acrylic-silicone graft copolymer: KP-561P, etc.), or derivatives thereof, and it is preferable to use one or more selected from these.

[0051] - Natural animal and vegetable oils and semi-synthetic oils As natural animal and vegetable oils and semi-synthetic oils, there are avocado oil (display name (INCI: Persea Gratissima (Avocado) Oil)), linseed oil (display name (INCI: Linum Usitatissimum (Linseed) Seed Oil)), almond oil (display name (INCI: Prunus Amygdalus Dulcis (Sweet Almond) Oil)), egoma oil (display name), olive oil (display name (INCI: Olea Europaea (Olive) Fruit Oil)), California torreya oil (display name (INCI: Torreya Californica (California Nutmeg) Oil)), citronella oil (display name (INCI: Cymbopogon Nardus (Citronella) Oil)), torreya nucifera seed oil (display name (INCI: Torreya Nucifera Seed Oil)), kyounin oil (display name (INCI: Kyounin Yu)), wheat germ oil (display name (INCI: Triticum Vulgare (Wheat) Germ Oil)), sesame oil (display name (INCI: Sesamum Indicum (Sesame) Seed Oil)), rice germ oil (display name (INCI: Oryza Sativa (Rice) Germ Oil)), rice bran oil (display name (INCI: Oryza Sativa (Rice) Bran Oil)), camellia kissi seed oil (display name (INCI: Camellia Kissi Seed Oil)), safflower oil (display name (INCI: Carthamus Tinctorius (Safflower) Seed Oil)), soybean oil (display name (INCI: Glycine Soja (Soybean) Oil)), tea seed oil (display name (INCI: Camellia Sinensis Seed Oil)), camellia japonica seed oil (display name (INCI: Camellia Japonica Seed Oil)), evening primrose oil (display name (INCI: Oenothera Biennis (Evening Primrose) Oil)), rapeseed oil (display 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 yolk oil (designated name (INCI: Egg Oil)) and other natural animal oils, hydrogenated coconut oil (designated name (INCI: Hydrogenated Coconut Oil)), lanolin oil (designated name (INCI: Lanolin Oil)) and other semi-synthetic oils, etc.

[0052] Hydrocarbon Oils Examples of hydrocarbon oils include linear or branched hydrocarbon oils, and may be volatile or non-volatile hydrocarbon oils. Specific examples include isoparaffins such as olefin oligomers (INCI), (C13,14) isoparaffin (INCI), and alkanes such as isododecane (INCI), undecane (INCI), tridecane (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).

[0053] Higher Alcohols Examples of higher alcohols include alcohols having preferably 6 or more carbon atoms, more preferably 10 to 30. Specific examples of higher alcohols include lauryl alcohol (INCI), myristyl alcohol (INCI), palmityl alcohol (INCI), stearyl alcohol (INCI), behenyl alcohol (INCI), oleyl alcohol (INCI), isostearyl alcohol (INCI), octyldodecanol (INCI), cholesterol (INCI), phytosterols (INCI), and batyl alcohol (INCI).

[0054] 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 dioctanoate (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 hydroxystearate (label name (INCI: Cholesteryl Hydroxystearate)), myristate esters such as 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));Examples thereof include dioctyldodecyl lauroyl glutamate (label name (INCI: Dioctyldodecyl Lauroyl Glutamate)), isopropyl lauroyl sarcosine (label name (INCI: Isopropyl Lauroyl Sarcosinate)), and coconut caprylate / caprate (label name (INCI: Coco-Caprylate / Caprate)).

[0055] Furthermore, among the ester oils, examples of glyceride oils include triethylhexanoin (labeled name (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)).

[0056] Fluorine-based oils Examples of fluorine-based oils include perfluorodecalin (INCI), perfluorononyl dimethicone (INCI), and perfluoromethylcyclopentane (INCI).

[0057] Ultraviolet absorbers Ultraviolet absorbers include oxybenzone-1 (label name (INCI: Benzophenone-1)), oxybenzone-2 (label name (INCI: Benzophenone-2)), oxybenzone-3 (label name (INCI: Benzophenone-3)), oxybenzone-4 (label name (INCI: Benzophenone-4)), oxybenzone-5 (label name (INCI: Benzophenone-5)), oxybenzone-6 (label name (INCI: Benzophenone-6)), oxybenzone-9 (label name (INCI: Benzophenone-9)), homosalate (INCI), octocrylene (INCI), t-butyl methoxydibenzoylmethane (label 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), etc.

[0058] (2) Aqueous Components Other Than Components (b) and (d) The aqueous components are not particularly limited as long as they are aqueous components other than the above-mentioned components (b) and (d) that can be typically incorporated into cosmetics. Specific examples include moisturizers such as betaine (INCI), PCA-Na (labeled name (INCI: Sodium PCA)), egg yolk lecithin, soybean lecithin, phosphatidylcholine, phosphatidylethanolamine, phosphatidylserine, and sphingophospholipids. Other examples include water-soluble polymer compounds such as vinyl polymers such as gum arabic, guar gum, carrageenan, agar, quince seed, locust bean gum, xanthan gum, pullulan, sodium carboxymethylcellulose, hydroxyethyl cellulose, and carboxyvinyl polymers, and acrylic polymers such as (ammonium acryloyldimethyltaurate / vinylpyrrolidone) copolymer, (sodium acrylate / sodium acryloyldimethyltaurate) copolymer, (hydroxyethyl acrylate / sodium acryloyldimethyltaurate) copolymer, (acrylamide / sodium acryloyldimethyltaurate) copolymer, and polyacrylamide. Among these, the use of acrylic polymers makes it possible to stabilize oil-in-water cosmetics relatively easily.

[0059] (3) Surfactants Other Than Component (c) Surfactants include nonionic, anionic, cationic, and amphoteric surfactants, but are not particularly limited thereto. Any surfactant other than component (c) that is commonly used in cosmetics can be used. Among these surfactants, one or more selected from non-crosslinked silicone surfactants and crosslinked silicone surfactants are preferred, as they enable the production of stable cosmetics. In either case, the amount of surfactants other than component (c) in the cosmetic is preferably 0.1 to 20% by mass. A content of 0.1% by mass 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 surfactants other than component (c) is not limited, but is preferably 2 to 14.5, in order to maintain the water resistance of the cosmetic.

[0060] 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. Specific examples 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 polydimethylsiloxyethyl dimethicone (INCI), lauryl polyglyceryl-3 polydimethylsiloxyethyl dimethicone (INCI), and isostearyl polyglyceryl-3 dimethicone (INCI).

[0061] Commercially available examples include KF-6011, KF-6011P, KF-6012, KF-6015, KF-6017, KF-6043, KF-6028, KF-6038, KF-6048, KF-6104, KF-6106, KF-6105, KF-6180, and KF-6115 manufactured by Shin-Etsu Chemical Co., Ltd.

[0062] Examples of crosslinked silicone surfactants include (dimethicone / (PEG-10 / 15)) crosspolymer (INCI), (PEG-15 / lauryl dimethicone) crosspolymer (INCI), (PEG-10 / lauryl dimethicone) crosspolymer (INCI), (PEG-15 / lauryl polydimethylsiloxyethyl dimethicone) crosspolymer (INCI), (dimethicone / polyglycerin-3) crosspolymer (INCI), (lauryl dimethicone / polyglycerin-3) crosspolymer (INCI), (polyglycerin-3 / lauryl polydimethylsiloxyethyl dimethicone) crosspolymer (INCI), etc. Furthermore, when a crosslinked silicone surfactant is used, in a composition comprising the crosslinked silicone surfactant and an oily agent that is liquid at room temperature, it is preferable that the crosslinked silicone surfactant swells with the liquid oil in an amount equal to or greater than its own weight. As the liquid oil, liquid silicone oil, hydrocarbon oil, ester oil, natural animal and vegetable oil, semi-synthetic oil, or fluorine-based oil in the optional component (1) oil can be used, and examples thereof include cyclopentasiloxane (INCI), dimethicone (INCI), caprylyl methicone (INCI), mineral oil (INCI), isododecane (INCI), isohexadecane (INCI), triethylhexanoin (INCI), isotridecyl isononanoate (display name (INCI: Isotridecyl Isononanoate)), squalane (INCI), and the like.

[0063] 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.

[0064] (4) Powders other than component (a) Examples of powders other than component (a) include color pigments, inorganic powders, metal powders, organic powders, inorganic-organic composite powders, etc. Specific examples are as follows.

[0065] Coloring Pigments There are no particular limitations on the coloring pigments, 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 iron oxide (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 (label name (INCI: Chromium Hydroxide Green)), chromium oxide (label name (INCI: Chromium Oxide Greens)), aluminum / cobalt oxide (label name (INCI: Cobalt Aluminum Oxide)), titanium / titanium oxide sintered product (label name (INCI: Titanium / Titanium Dioxide)), lithium / cobalt titanate (label name (INCI: Lithium Cobalt Titanate)), iron oxide / titanium oxide sintered product (label name), iron oxide-doped titanium oxide (label name (INCI: Iron Oxides, Titanium Any of the following pigments can be used: composites doped with a different metal such as titanium nitride (display name (INCI: Titanium Nitride)), ferrous hydroxide (display name (INCI: Iron Hydroxide)), inorganic brown pigments such as γ-iron oxide, inorganic yellow pigments such as ochre, colored pigments such as lakes of tar-based pigments and lakes of natural pigments. The shape of the pigment may be spherical, approximately spherical, rod-shaped, spindle-shaped, petal-shaped, strip-shaped, irregular, or the like, and there is no particular limitation on the geometric form as long as it is possible to impart color to the cosmetic.

[0066] 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)), and magnesium carbonate (display name (INCI: Magnesium Oxide)). Carbonate), Talc (INCI), Mica (INCI), Kaolin (INCI), Synthetic Fluorphlogopite (Display name (INCI: Synthetic Fluorphlogopite)), Synthetic Iron Phlogopite (Display name (INCI: Biotite)), Potassium Silicate (Display name (INCI: Potassium Silicate)), Silica (INCI), Aluminum Silicate (Display name (INCI: Aluminum Silicate)), Magnesium Silicate (Display name (INCI: Magnesium Silicate)), Aluminum / Mg Silicate (Display name (INCI: Magnesium Aluminum Silicate)), Calcium Silicate (Display name (INCI: Calcium 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)), Borosilicate (Ca / Na) (Indication name (INCI: Calcium Sodium Borosilicate), hydroxyapatite (INCI), bentonite (INCI), montmorillonite (INCI), hectorite (INCI), zeolite (INCI), alumina (INCI),Examples of the fine particles include fine particles made of 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 mica (INCI) coated with (display name (INCI: Titanium Dioxide)), synthetic fluorophlogopite (display name (INCI: Synthetic Fluorophlogopite)) coated with titanium dioxide (display name (INCI: Titanium Dioxide)), bismuth oxychloride (display name (INCI: Bismuth Oxychloride)), bismuth oxychloride (display name (INCI: Bismuth Oxychloride)) coated with titanium dioxide (display name (INCI: Titanium Dioxide)), and titanium dioxide (display name (INCI: Titanium Dioxide)). Examples of the surface treatment agent include pearl pigments such as talc (INCI) coated with titanium dioxide (INCI: Titanium Dioxide), fish scale foil (display name), and colored mica coated with titanium dioxide (display name (INCI: Titanium Dioxide)), and the like. The surface treatment agent may be untreated or may be a known surface treatment agent generally used in cosmetics, but is not particularly limited thereto.

[0067] Metal Powder Examples of the metal powder include fine metal particles made of Al (display name (INCI: Aluminum, Aluminum Powder)), copper (display name (INCI: Copper Powder)), silver (display name (INCI: Silver Powder)), gold (display name (INCI: Gold)), etc.

[0068] Organic Powders Examples of organic powders include powders made of silicone, polyamide, polyacrylic acid / acrylic acid ester, polyester, polyethylene (INCI), polypropylene (INCI), polystyrene (INCI), styrene / acrylic acid copolymer, divinylbenzene / styrene copolymer, polyurethane, vinyl resin, urea resin, melamine resin, benzoguanamine, polymethylbenzoguanamine, tetrafluoroethylene, polymethyl methacrylate, cellulose (INCI), silk (INCI), nylon (display name), phenolic resin, epoxy resin, polycarbonate, etc. In particular, examples of silicones include silicone resin particles; polymethylsilsesquioxane (INCI), silicone rubber powder, silicone resin-coated silicone rubber powder; (vinyl dimethicone / methicone silsesquioxane) crosspolymer (display name (INCI: vinyl dimethicone / methicone silsesquioxane crosspolymer)), (diphenyl dimethicone / vinyl diphenyl dimethicone / silsesquioxane) crosspolymer (display name (INCI: diphenyl dimethicone / vinyl diphenyl dimethicone / silsesquioxane crosspolymer)), polysilicone-1 crosspolymer (INCI), polysilicone-22 (INCI), and the like.

[0069] Examples of commercially available silicone powders include KMP-590, KMP-591, KMP-592, KMP-597, KMP-598, KSP-100, KSP-101, KSP-102, KSP-105, KSP-100W, KSP-300, KSP-411, KSP-441, KM-9729, and KM-440 manufactured by Shin-Etsu Chemical Co., Ltd.

[0070] 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 Myristate)), zinc / sodium cetyl phosphate (label name (INCI: Sodium Zinc Cetyl Phosphate)), potassium cetyl phosphate (label name (INCI: Potassium Cetyl Phosphate)), and potassium cetyl phosphate (label name (INCI: Potassium Cetyl Phosphate)). Also included are powders made of, for example, ammonium phosphate.

[0071] 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 Lake)), Red 230 (2) (Display name), Red 401 (Display name), Red 505 (Display name), Yellow 4 (Display name (INCI: Yellow 5)), Yellow 5 (Display name (INCI: Yellow 6, Yellow 6) Yellow 202 (1) (Display name (INCI: Yellow 8)), Yellow 203 (Display name (INCI: Yellow 10, Yellow 10 Lake)), Yellow 204 (Display name (INCI: Yellow 8)) 11)), yellow 401, blue 1 (display name (INCI:Blue 1, Blue 1 Lake)), blue 2, blue 201, blue 205 (display name (INCI:Blue 4), Blue 404 (Display name), 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 (Display name), Orange 201 (Display name (INCI: Orange 5)), Orange 203 (Display name (INCI: Pigment Orange 5)), Orange 204 (Display name), 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 (INCI), laccaic acid (INCI: Laccaic Acid), safflower red (INCI: Carthamus Tinctorius (Safflower) Flower Extract),Examples of natural pigments include purple root extract (labeled name (INCI: Lithospermum Officinale Root Extract)), gardenia yellow (labeled name), and gardenia blue (labeled name (INCI: Hydrolyzed Gardenia Florida Extract)).

[0072] 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.

[0073] The above-mentioned powders may also be surface-treated. The surface treatment agent is preferably one that can impart hydrophobicity from the viewpoint of water resistance of the cosmetic. Examples of the surface treatment agent that can impart hydrophobicity include, but are not limited to, 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 and magnesium myristate. More preferred are silicone treatment agents, and examples thereof include silanes or silylating agents such as triethoxycaprylylsilane (INCI), dimethicone (INCI), methicone (INCI), hydrogen dimethicone (INCI), triethoxysilylethyl polydimethylsiloxyethyl dimethicone (INCI), triethoxysilylethyl polydimethylsiloxyethylhexyl dimethicone (INCI), and (acrylates / tridecyl acrylate / triethoxysilylpropyl methacrylate / dimethicone methacrylate) copolymer (labeling name (INCI): Acrylates / Tridecyl Acrylate / Triethoxysilylpropyl Methacrylate / Dimethicone Methacrylate Copolymer). Specific examples of these silicone treating agents include AES-3083, KF-99P, KF-9901, KF-9908, KF-9909, KP-574, and KP-541, all manufactured by Shin-Etsu Chemical Co., Ltd.

[0074] Furthermore, the above-mentioned surface hydrophobic treatment agents may be used alone or in combination of two or more. Specific examples of surface-treated color pigments include the KTP-09 series manufactured by Shin-Etsu Chemical Co., Ltd., particularly KTP-09W, KTP-09R, KTP-09Y, and KTP-09B.

[0075] In addition to the aqueous dispersion of the present invention, a dispersion in which particles that absorb and scatter ultraviolet light, which are components (a) and (e), are pre-dispersed in an oil agent can also be used. The oil agent in question can be a liquid silicone oil, hydrocarbon oil, ester oil, natural animal or vegetable oil, semi-synthetic oil, or fluorine-based oil, which is contained in the optional component (1) oil agent. Specific examples of dispersions in which particles that absorb and scatter ultraviolet light are pre-dispersed in an oil agent include the SPD series (trade name) manufactured by Shin-Etsu Chemical Co., Ltd., in particular SPD-T5, SPD-T5L, SPD-Z5, SPD-T6, SPD-Z6, SPD-T7, and SPD-Z7L.

[0076] Hydrophilic-treated UV-absorbing / scattering agent In addition to the components (a) and (e) of the present invention, hydrophilic-treated titanium oxide fine particle or zinc oxide fine particle can also be used. Specific examples of hydrophilic treatment include treatment with hydrated silica and treatment with a high HLB surfactant. Hydrophilic-treated UV-scattering agents have poor water resistance and are therefore not suitable for cosmetics that require water resistance.

[0077] (5) Composition Comprising a Crosslinked Organopolysiloxane and an Oily Agent That Is Liquid at Room Temperature In a composition comprising a crosslinked organopolysiloxane and an oily agent that is liquid at room temperature, it is preferred that the crosslinked organopolysiloxane swells in the liquid oil by absorbing an amount of the liquid oil that is equal to or greater than its own weight. As the liquid oil agent, liquid silicone oil, hydrocarbon oil, ester oil, natural animal and vegetable oil, semi-synthetic oil, or fluorine-based oil in the optional component (1) oil agent can be used, 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), and coco-caprylate / caprate (display name (INCI: Coco-Caprylate / Caprate)).

[0078] 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 (display name (INCI: Dimethicone / Phenyl Vinyl Dimethicone Crosspolymer)), (vinyl dimethicone / lauryl dimethicone) crosspolymer (INCI), (lauryl polydimethylsiloxyethyl dimethicone / bisvinyl 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, KSG-048Z, and KM-116, all manufactured by Shin-Etsu Chemical Co., Ltd.

[0079] (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.

[0080] 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), tri(trimethylsiloxy)silylpropylcarbamate pullulan (labeled as (INCI): Trimethylsiloxysilylcarbamoyl Pullulan)), and the like.

[0081] The film-forming agent may be dissolved in a liquid oil at room temperature before blending into the cosmetic. Examples of the liquid oil include liquid silicone oils, hydrocarbon oils, ester oils, natural animal and vegetable oils, semi-synthetic oils, and fluorine-based oils, all of which are included in the optional component (1) 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 manufactured by Shin-Etsu Chemical Co., Ltd.

[0082] (7) 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.

[0083] 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).

[0084] 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, bisabolol, ethylhexylglycerin, glyceryl caprylate, caprylhydroxamic acid, hexyl dimethylolpropionate, polyaminopropyl biguanide, photosensitive dyes, silver, plant extracts, etc. One type of preservative may be used alone, or two or more types may be used in combination. In particular, polylysine, bisabolol, ethylhexylglycerin, glyceryl caprylate, caprylhydroxamic acid, hexyl dimethylolpropionate, polyaminopropyl biguanide, ethylhexylglycerin, and phenoxyethanol are preferred because they are easy to incorporate into cosmetics and are expected to have a preservative effect, and ethylhexylglycerin, phenoxyethanol, and glyceryl caprylate are particularly preferred in terms of their compatibility with the dispersion of the present invention. The incorporation of a preservative is expected to inhibit bacterial contamination and improve the shelf life of the dispersion.

[0085] Antiperspirants include aluminum hydroxyhalides such as chlorohydroxy aluminum, aluminum halides such as aluminum chloride, aluminum allantoin, tannic acid, persimmon tannin, sulfate (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 of these with zirconyl oxyhalides and zirconyl hydroxyhalides (for example, tetrachloro(Al / zirconium) hydrate, trichlorohydrex glycine (Al / zirconium)).

[0086] 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.

[0087] Salts Examples of salts include inorganic salts, organic acid salts, amine salts, and amino acid salts. Examples of inorganic salts include sodium, potassium, magnesium, calcium, aluminum, zirconium, 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. Other examples include salts of hyaluronic acid, chondroitin sulfate, aluminum zirconium glycine complexes, and acid-alkali neutral salts used in cosmetic formulations. Sodium chloride is particularly preferred in terms of solubility, feel during use, and foaming suppression. When incorporated in large amounts, it may inhibit the swelling of water-soluble polymer compounds.

[0088] 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.

[0089] 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.

[0090] Chelating Agents Examples of chelating agents include alanine, edetate sodium salt, sodium polyphosphate, sodium metaphosphate, phosphoric acid, and the like.

[0091] Cooling agents include L-menthol, camphor, menthyl lactate, and the like.

[0092] Anti-inflammatory Agents Examples of anti-inflammatory agents include allantoin, glycyrrhizinic acid and its salts, glycyrrhetinic acid and stearyl glycyrrhetinate, tranexamic acid, and azulene.

[0093] Skin-beautifying ingredients Examples of skin-beautifying ingredients include whitening agents such as placenta extract, arbutin, glutathione, and saxifrage extract; cell activators such as royal jelly, photosensitizers, cholesterol derivatives, and calf blood extract; rough skin improving 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 thianthol.

[0094] 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.

[0095] Amino acids include glycine, valine, leucine, isoleucine, serine, threonine, phenylalanine, arginine, lysine, aspartic acid, glutamic acid, cystine, cysteine, methionine, and tryptophan.

[0096] Nucleic Acids Examples of nucleic acids include deoxyribonucleic acid.

[0097] Hormones include estradiol and ethenylestradiol.

[0098] Inclusion Compounds Examples of inclusion compounds include cyclodextrin.

[0099] The present invention will be specifically described below with reference to examples and comparative examples, but the present invention is not limited to the following examples. In the following examples, unless otherwise specified, "%" in the composition indicates mass % and ratio indicates mass ratio, the blending amount indicated by the product name is the blending amount of the blended product, and the mass ratio (c) / (b) is the ratio of pure components.

[0100] [Solubility of Component (C)] When the following components were mixed in water or BG at 20% by mass and then allowed to stand at 25°C for 1 hour, a transparent to semi-transparent state with no boundary was rated as "soluble," and a state where the mixture became cloudy or separated into two layers was rated as "insoluble." A "transparent to semi-transparent state" means that the mixed liquid was filled into a 1 cm thick cell and the total light transmittance measured in accordance with the method described in JIS K7361-1:1997 was 50% or more.

[0101] (Note 1) Polyglyceryl-3 Disiloxane Dimethicone (Indication name (INCI: Polyglyceryl-3 Disiloxane Dimethicone)) (Note 2) Polyglyceryl-3 Polydimethylsiloxyethyl Dimethicone (Indication name (INCI: Polyglyceryl-3 Polydimethylsiloxyethyldimethicone))

[0102] [Examples of Dispersions] Based on the compositions shown in Table 2 below, slurries were prepared using a roll mill to obtain dispersions. The dispersibility of the resulting dispersions was evaluated according to the following evaluation criteria. The results are also shown in the table.

[0103] [Water dispersibility] 0.5 g of the dispersion in the table below was placed in a beaker containing 50 mL of water with a metal spatula, stirred, and evaluated. A: No settling occurred and the dispersion was uniformly dispersed. B: Settling was observed temporarily, but the dispersion was uniformly dispersed with continued stirring. C: No dispersion. A rating of "B" or higher was considered acceptable.

[0104] The dispersions in the examples had a hardness of 1 to 100 when in a paste state, and a viscosity of 50 to 5,000 mPa s when in a liquid state. The hardness was measured using a rheometer RT-2002D.D (manufactured by Rheotec Corporation, measuring probe: 5 mmφ, penetration depth: 10 mm, sample stage rising speed: 5 cm / min, temperature: 25°C, range: 200), and the viscosity was measured at 25°C using a B-type viscometer (TVB-10 model, manufactured by Toki Sangyo Co., Ltd.) according to the method described in JIS K 7117-1:1999.

[0105] (Note 1) Zinc oxide particles (labeled as "INCI: Zinc Oxide") treated with hydrated silica (labeled as "Hydrated Silica") and hydrogen dimethicone (labeled as "Hydrogen Dimethicone"), with a number-average primary particle diameter of 20 nm as determined by image analysis of transmission electron micrographs (the average diameter of 200 particles measured by image analysis of transmission electron micrographs). (Note 2) Zinc oxide particles (labeled as "INCI: Zinc Oxide") treated with hydrated silica (labeled as "Hydrated Silica") and hydrogen dimethicone (labeled as "Hydrogen Dimethicone") (Note 3) Zinc oxide fine particles (labeled name (INCI: Zinc Oxide)) treated with hydrogen dimethicone (labeled name (INCI: Hydrogen Dimethicone)), number average primary particle size of 35 nm as determined by image analysis of transmission electron micrographs (average diameter of 200 particles measured by image analysis of transmission electron micrographs) (Note 4) Polyglyceryl-3 disiloxane dimethicone (labeled name (INCI: Polyglyceryl-3 Disiloxane Dimethicone)) (Note 5) Polyglyceryl-3 polydimethylsiloxyethyl dimethicone (labeled name (INCI: Polyglyceryl-3 Polydimethylsiloxyethyldimethicone))

[0106] As is clear from Table 2, the Examples of the present invention all yielded dispersions (slurries) with good water dispersibility. On the other hand, Comparative Examples 1 and 2, which did not contain component (b), and Comparative Examples 3 and 4, which did not contain component (c), had poorer water dispersibility than the Examples.

[0107] Slurries were prepared using a bead mill based on the compositions shown in Table 3. The success of dispersion preparation was evaluated according to the following evaluation criteria. The results are also shown in the table.

[0108] [Preparability of Dispersion] A: Dispersion can be obtained. C: Dispersion cannot be prepared. "A" was rated as pass.

[0109] [Evaluation of finish and application] The finish (non-powderyness) and application (good spreadability) of the cosmetic composition upon application were evaluated by 10 expert panelists according to the following evaluation criteria. The results were judged based on the average of the 10 panelists' scores and in accordance with the following criteria.

[0110] [Evaluation criteria] 5 points: very good 4 points: good 3 points: average 2 points: somewhat poor 1 point: poor The average scores obtained were evaluated according to the following criteria: [Judgment criteria] A: Average score of 4.5 points or more B: Average score of 3.5 points or more but less than 4.5 points C: Average score of 2.5 points or more but less than 3.5 points D: Average score less than 2.5 points A grade of "B" or more was considered a pass.

[0111] (Note 1) Zinc oxide particles (labeled name (INCI: Zinc Oxide)) treated with hydrated silica (labeled name (INCI: Hydrated Silica)) and hydrogen dimethicone (labeled name (INCI: Hydrogen Dimethicone)). Number average primary particle diameter measured by image analysis of transmission electron microscope photographs: 35 nm (average diameter of 200 particles measured by image analysis of transmission electron microscope photographs). (Note 2) Zinc oxide particles (labeled name (INCI: Zinc Oxide)) treated with triethoxycaprylylsilane (labeled name (INCI: Triethoxycaprylylsilane)). Number average primary particle diameter measured by image analysis of transmission electron microscope photographs: 25 nm (average diameter of 200 particles measured by image analysis of transmission electron microscope photographs). (Note 3) Fine particles of zinc oxide (label name (INCI: Zinc Oxide)) treated with hydrated silica (label name (INCI: Hydrated Silica)). Number-average primary particle size of 25 nm as determined by image analysis of transmission electron micrographs (average diameter of 200 particles measured by image analysis of transmission electron micrographs). (Note 4) Polyglyceryl-3 disiloxane dimethicone (label name (INCI: Polyglyceryl-3 Disiloxane Dimethicone)). (Note 5) Polyglyceryl-3 polydimethylsiloxyethyl dimethicone (label name (INCI: Polyglyceryl-3 Polydimethylsiloxyethyldimethicone)). Does not dissolve in component (b). (Note 6) PEG-10 Dimethicone (Display name (INCI: PEG-10 Dimethicone)) (Note 7) PEG-9 Dimethicone (Display name (INCI: PEG-9 Dimethicone))

[0112] As is clear from Table 3, dispersions (slurries) were obtained in all of Examples 6 to 10 of the present invention. On the other hand, dispersions were not obtained in Comparative Example 5, which did not contain component (a), and Comparative Examples 6 to 8, which did not contain component (c), and Comparative Example 9, which contained a polyether-modified silicone that can be blended into aqueous systems, resulted in a powdery finish and poor coatability.

[0113] Dispersions were prepared based on the compositions and dispersion methods shown in Table 4. The dispersions were evaluated for their preparation feasibility.

[0114] (Note 1) Zinc oxide particles (labeled as "INCI: Zinc Oxide") treated with hydrated silica (labeled as "Hydrated Silica") and hydrogen dimethicone (labeled as "Hydrogen Dimethicone"), with a number-average primary particle diameter of 20 nm as determined by image analysis of transmission electron micrographs (the average diameter of 200 particles measured by image analysis of transmission electron micrographs). (Note 2) Zinc oxide particles (labeled as "INCI: Zinc Oxide") treated with hydrated silica (labeled as "Hydrated Silica") and hydrogen dimethicone (labeled as "Hydrogen Dimethicone") Oxide), number-average primary particle size of 35 nm as determined by image analysis of transmission electron microscope photographs (average diameter of 200 particles measured by image analysis of transmission electron microscope photographs) (Note 3) Polyglyceryl-3 Disiloxane Dimethicone (Indication name (INCI: Polyglyceryl-3 Disiloxane Dimethicone))

[0115] As is clear from Table 4, dispersions were obtained in all of Examples 11 to 18 of the present invention using both the high-pressure disperser and the bead mill. The obtained dispersions were rated "A" in the dispersion preparation feasibility test, and all were stable dispersions with good water dispersibility, and were excellent in finish and coatability.

[0116] [Reference Example] A dispersion was prepared based on the composition shown in Table 5 below in the same manner as in Example 1. A test was carried out to determine whether the dispersion could be prepared.

[0117] (Note 1) Hydrous silica (label name (INCI: Hydrated Silica)), fine particles of titanium dioxide (label name (INCI: Titanium Dioxide)) treated with hydrogen dimethicone (label name (INCI: Hydrogen Dimethicone)), number-average primary particle diameter 15 nm (Note 2) Polyglyceryl-3 disiloxane dimethicone (label name (INCI: Polyglyceryl-3 Disiloxane Dimethicone)) (Note 3) PEG-9 dimethicone (label name (INCI: PEG-9 Dimethicone))

[0118] [Examples 19 to 21, Comparative Examples 10 and 11] O / W creams were prepared according to the formulations shown in Table 6. The obtained O / W creams were evaluated as follows.

[0119] (Note 1) Shin-Etsu Chemical Co., Ltd.: Aluminum hydroxide (label name (INCI: Hydrated Aluminum)), titanium dioxide (label name (INCI: Titanium Dioxide)) fine particles treated with stearic acid (label name (INCI: Stearic Acid)), 45% cyclopentasiloxane dispersion, number average primary particle size 20 nm. (Note 2) Hydrous silica (label name (INCI: Hydrated Silica)), zinc oxide (label name (INCI: Zinc Oxide) fine particles treated with hydrogen dimethicone (label name (INCI: Hydrogen Dimethicone)), number average primary particle size 35 nm. (Note 3) Hydrous silica (label name (INCI: Hydrated (Note 4) Polyglyceryl-3 Disiloxane Dimethicone (Indication name (INCI: Polyglyceryl-3 Disiloxane Dimethicone))

[0120] [Production method] A: Component (2) was mixed. B: Component (3) was mixed. C: The composition obtained in A was added to the composition obtained in B and emulsified. D: (1) was added to the emulsion obtained in C and mixed to obtain an O / W cream.

[0121] [Transparency evaluation, usability evaluation] The transparency of the cosmetic when applied and the usability (non-stickiness) of the cosmetic were evaluated by 10 expert panelists according to the following evaluation criteria. The results were judged based on the average of the 10 panelists' scores and in accordance with the following criteria.

[0122] [Evaluation criteria] 5 points: very good 4 points: good 3 points: average 2 points: somewhat poor 1 point: poor The average scores obtained were evaluated according to the following criteria: [Judgment criteria] A: Average score of 4.5 points or more B: Average score of 3.5 points or more but less than 4.5 points C: Average score of 2.5 points or more but less than 3.5 points D: Average score less than 2.5 points A grade of "B" or more was considered a pass.

[0123] [Water resistance evaluation] The water resistance of the cosmetic composition when applied was evaluated according to the following evaluation criteria. The results were judged according to the following criteria. [Judgment criteria] A: Does not come off even when exposed to running water for 1 minute C: Comes off when exposed to running water for 1 minute "A" was considered a pass.

[0124] As is clear from the results in Table 6, Examples 19 to 21, which used the aqueous dispersion of the present invention, were excellent in transparency, usability, and water resistance. On the other hand, Comparative Example 10, which used the dispersion of Comparative Example 9, was inferior in usability and water resistance. Comparative Example 11, which had the same overall cosmetic ingredients as Example 19 but did not form the aqueous dispersion of the present invention, was inferior in transparency and usability. Furthermore, both Examples 20 and 21 were excellent in transparency, usability, and water resistance, and exhibited ultraviolet blocking effects over a wide range of UVA to UVB due to the high blending of (e) titanium oxide microparticles. In particular, Example 21, in which (e) titanium oxide microparticles were blended in the oil phase, was superior in usability and stability to Example 20.

[0125] [Example 22] Oil-in-water sunscreen Composition % 1. KSG-15 (Note 1) 8.0 2. KSG-16 (Note 2) 19.0 3. KSG-45 (Note 3) 5.0 4. Cyclopentasiloxane 5.0 5. Ethylhexyl methoxycinnamate 5.0 6. BG 3.0 7. KF-6100 (Note 4) 0.6 8. KF-6104 (Note 5) 0.3 9. (Ammonium acryloyldimethyltaurate / VP) copolymer aqueous solution (Note 6) 13.0 10. (Acrylamide / Sodium acryloyldimethyltaurate) copolymer / isohexadecane / Polysorbate 80 aqueous solution (Note 7) 0.6 11. 1% sodium chloride aqueous solution 8.0 12. Water 12.5 13. Dispersion of Example 6 10.0 14. Dispersion of Reference Example 1 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.: Mixture of 60-70% (caprylic acid / capric acid) coconut alkyl ester + 30-40% (dimethicone / vinyl dimethicone) crosspolymer (Note 4) Shin-Etsu Chemical Co., Ltd.: Polyglyceryl-3 disiloxane dimethicone (Note 5) Shin-Etsu Chemical Co., Ltd.: Polyglyceryl-3 polydimethylsiloxyethyl dimethicone (Note 6) Clariant: Aristoflex AVC (Note 7) Seppic: Simulgel 600

[0126] (Production method) A: Components 1 to 5 were mixed uniformly. B: Components 6 to 12 were mixed uniformly. C: A was added to B and emulsified, and components 13 and 14 were added and dispersed uniformly. The oil-in-water sunscreen obtained in this manner had excellent transparency, usability, and water resistance.

[0127] [Example 23] 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 16 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. Triethylhexanoin 6.0 15. Polyhydroxystearic acid 0.5 16. 16. KTP-09W (Note 2) Appropriate amount 17. KTP-09R (Note 2) Appropriate amount 18. KTP-09Y (Note 2) Appropriate amount 19. KTP-09B (Note 2) Appropriate amount 20. Polysorbate 60 0.3 21. (Hydroxyethyl acrylate / Sodium acryloyldimethyltaurate) Copolymer (Note 3) 0.6 Total 100.0 (Note 1) Shin-Etsu Chemical Co., Ltd.: (Vinyl dimethicone / methicone silsesquioxane) crosspolymer (Note 2) Shin-Etsu Chemical Co., Ltd.: KF-9909 treated colored inorganic pigment, W: white, R: red, Y: yellow, B: black (Note 3) SEPPIC: SIMULGEL EG

[0128] (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: Components 14 to 19 were mixed and rolled. D: The product obtained in step C was added to the product obtained in step B and homogenized. E: The heated product obtained in step D was added to the heated product obtained in step A and homogenized. F: The product obtained in step E was cooled to room temperature, and then components 20 and 21 were added and homogenized. The oil-in-water base cream obtained in this manner was highly stable, had a good non-sticky feel when used, and was excellent in water resistance.

[0129] Example 24 Aqueous Gel Composition % 1. Dispersion of Example 4 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. KSP-100W (Note 1) 1.0 8. Phenoxyethanol 0.39. Water Balance Total 100.0 (Note 1) Shin-Etsu Chemical Co., Ltd.: Hydrophilic treated powder of (vinyl dimethicone / methicone silsesquioxane) crosspolymer

[0130] (Manufacturing method) A: Components 1 and 2 were mixed uniformly. B: Components 3 to 9 were mixed uniformly. C: The product obtained in step A was added to the product obtained in step B and mixed uniformly. D: The product obtained in step C was degassed and then filled into a container to obtain an aqueous gel. The aqueous gel obtained in this manner was excellent in transparency, usability, and water resistance. Component 1 was excellent in stability and easy to handle and pour.

[0131] Example 25 Oil-in-water Sunscreen Emulsion Composition % 1. Dimethicone-treated zinc oxide fine particle 7.5 2. 1,2-hexanediol 0.5 3. Butylene Glycol 4.0 4. KF-6100 (Note 1) 1.2 5. KM-116 (Note 2) 0.5 6. Sorbitol 3.0 7. Ethanol 9.5 8. Butylene Glycol 5.0 9. Sodium acrylate / sodium acryloyldimethyltaurate copolymer composition (Note 3) 2.5 10. KM-440 (Note 4) 2.0 11. Water Balance 12. KF-7312J (Note 5) 1.0 13. KF-56A (Note 6) 3.0 14. Cetyl alcohol 2.0 15. Homosalate 5.0 16. Diethylaminohydroxybenzoylhexylbenzoate 1.0 17. Polyoxyethylene (60) hydrogenated castor oil 1.0 18. KF-6011 (Note 7) 0.5 19. Tocopherol 0.05 Total 100.0

[0132] (Note 1) Shin-Etsu Chemical Co., Ltd.: Polyglyceryl-3 disiloxane dimethicone (Note 2) Shin-Etsu Chemical Co., Ltd.: Water dispersion of (dimethicone / vinyl dimethicone) crosspolymer (Note 3) SEPPIC: SIMULGEL EG (Note 4) Shin-Etsu Chemical Co., Ltd.: Water dispersion of (vinyl dimethicone / lauryl dimethicone) crosspolymer (Note 5) Shin-Etsu Chemical Co., Ltd.: Cyclopentasiloxane solution of 50% trimethylsiloxysilicate (Note 6) Shin-Etsu Chemical Co., Ltd.: Diphenylsiloxyphenyl trimethicone (Note 7) Shin-Etsu Chemical Co., Ltd.: PEG-11 methyl ether dimethicone

[0133] (Production Method) A: Components 1 to 4 were uniformly dispersed using a roller. B: Components 5 to 11 were heated to 85°C, and the mixture obtained in A was added and mixed uniformly. C: Components 12 to 19 were heated to 85°C and mixed uniformly. D: The mixture obtained in C was added to the mixture obtained in B and emulsified at 85°C, followed by slow cooling with stirring to obtain an oil-in-water sunscreen emulsion. The aqueous gel obtained in this manner had excellent transparency, usability, and water resistance. The dispersion of the present invention prepared by Production Method A was excellent in stability and easy to handle and pour.

[0134] [Example 26] W / O primer Composition % 1. KSG-270 (Note 1) 3.0 2. KSG-18A (Note 2) 3.0 3. KF-6048 (Note 3) 2.0 4. KF-56A (Note 4) 5.0 5. KF-4422 (Note 5) balance 6. Ethylhexyl methoxycinnamate 5.0 7. Ethylhexyl salicylate 2.0 8. Octocrylene 1.0 9. Diethylaminohydroxybenzoylhexyl benzoate 2.0 10. KSP-105 (Note 6) 2.0 11. SPD-T7 (Note 7) 10.0 12. KF-6100 (Note 8) 0.4 13. BG 2.0 14. Silicone-treated zinc oxide microparticles 9.0 15. Water 10.0 16. Sodium chloride 0.3 17. Sodium citrate 0.1 18. Ethanol 3.0 Total 100.0 (Note 1) Shin-Etsu Chemical Co., Ltd.: Mixture of diphenylsiloxyphenyl trimethicone + (dimethicone / (PEG-10 / 15)) crosspolymer 15-25% (Note 2) Shin-Etsu Chemical Co., Ltd.: Mixture of diphenylsiloxyphenyl trimethicone + (dimethicone / phenyl vinyl dimethicone) crosspolymer 10-20% (Note 3) Shin-Etsu Chemical Co., Ltd.: Cetyl PEG / PPG-10 / 1 dimethicone (Note 4) Shin-Etsu Chemical Co., Ltd.: Diphenylsiloxyphenyl trimethicone (Note 5) Shin-Etsu Chemical Co., Ltd.: Ethyl trimethicone (Note 6) Shin-Etsu Chemical Co., Ltd.: (vinyl dimethicone / methicone silsesquioxane) crosspolymer(Note 7) Shin-Etsu Chemical Co., Ltd.: 45% fine particle titanium dioxide dispersion in cyclopentasiloxane (Note 8) Shin-Etsu Chemical Co., Ltd.: Polyglyceryl-3 disiloxane dimethicone

[0135] (Production method) A: Components 1 to 10 were mixed uniformly. B: Components 15 to 17 were mixed, and then pre-mixed components 12 and 13 were added, followed by component 14, and the mixture was dispersed using a homomixer. C: The mixture obtained in B was mixed uniformly with component 18. D: The mixture obtained in C was added to the mixture obtained in A and emulsified. E: Component 11 was added to the mixture obtained in D and mixed uniformly. The resulting W / O base was highly stable, had a good non-sticky feel, and was excellent in water resistance.

[0136] [Example 27] 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. Dimethicone-treated zinc oxide fine particle 7.2 6. Butylene Glycol 1.8 7. KF-6100 (Note 4) 1.6 8. Water 20 9. Butylene Glycol 10 10. Betaine 1 11. KF-6043 (Note 5) 1.5 12. Sodium acrylate / sodium acryloyldimethyltaurate copolymer composition (Note 6) 1 13. (Acrylates / alkyl acrylate (C10-30)) crosspolymer (2% aqueous solution) 20 14. Arginine (10% aqueous solution) appropriate amount 15. Bisabolol 0.1 16. Ethylhexylglycerin 0.1 17. EDTA-2Na (10% aqueous solution) 0.118. Water Balance Total 100.0 (Note 1) Shin-Etsu Chemical Co., Ltd.: (Acrylates / Dimethicone) Copolymer 30% by mass dissolved in cyclopentasiloxane (Note 2) Shin-Etsu Chemical Co., Ltd.: Dimethicone 80-90% by mass + (Dimethicone / Vinyl Dimethicone) Crosspolymer 10-20% by mass mixture (Note 3) Shin-Etsu Chemical Co., Ltd.: Diphenylsiloxyphenyl Trimethicone (Note 4) Shin-Etsu Chemical Co., Ltd.: Polyglyceryl-3 Disiloxane Dimethicone (Note 5) Shin-Etsu Chemical Co., Ltd.: PEG-10 Dimethicone (Note 6) SEPPIC: SIMULGEL EG

[0137] (Production method) A: Components 1 to 4 were mixed uniformly. B: Components 5 to 8 were dispersed uniformly using a homomixer. C: Components 9 to 18 and B were mixed uniformly. D: A was added to C and emulsified to obtain an O / W base. The oil-in-water base obtained in this manner was highly stable, had a good non-sticky feel when used, and was excellent in water resistance. The dispersion obtained in B was highly stable and easy to handle and pour.

[0138] [Example 28] 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-6013 (Note 2) 0.2 12. Alkyl POE palmityl ether phosphate 0.1 13. POE hydrogenated castor oil 0.5 14. Silicone-treated titanium dioxide (Note 3) 8.5 15. 16. Silicone-treated red iron oxide (Note 3) 0.4 16. Silicone-treated yellow iron oxide (Note 3) 1.0 17. Silicone-treated black iron oxide (Note 3) 0.1 18. Dimethicone-treated fine particle zinc oxide 5.0 19. DPG 3.0 20. KF-6100 (Note 4) 0.7 21. Water 3.3 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.: PEG-9 Dimethicone (Note 3) Shin-Etsu Chemical Co., Ltd.: Triethoxycaprylylsilane treatment (Note 4) Shin-Etsu Chemical Co., Ltd.: Polyglyceryl-3 Disiloxane Dimethicone

[0139] (Production Method) A: Components 11 to 13 were mixed with a portion of 22, and components 14 to 17 were added and uniformly dispersed, followed by heating. B: Components 1 to 8 were mixed and heated to dissolve uniformly. C: Components 9 to 10, the remainder of 22, 23, and 25 were mixed and heated. D: Components 18 to 21 were dispersed using a high-pressure disperser. E: B was added to C under stirring and emulsified, A was added, and then D and component 24 were added to obtain an oil-in-water liquid foundation. The oil-in-water liquid foundation obtained in this manner was highly stable, had a good non-sticky feel when used, and had excellent water resistance. The dispersion obtained in D was highly stable and easy to handle and pour.

[0140] Example 29 Water-in-oil Sunscreen Emulsion Composition % 1. KSG-210 (Note 1) 2.0 2. KSG-790 (Note 2) 1.0 3. KSG-15 (Note 3) 2.0 4. KF-6028 (Note 4) 1.0 5. Dimethicone 6CS 3.0 6. KF-4418 (Note 5) 2.0 7. Cyclopentasiloxane 5.0 8. Isotridecyl isononanoate 4.0 9. SPD-T5 (Note 6) 5.0 10. SPD-Z7L (Note 7) 20.0 11. Sodium citrate 0.2 12. Sodium chloride 0.5 13. Dispersion of Example 9 20.0 14. Preservatives Appropriate amount 15. Fragrance Appropriate amount 16. Water Remaining Total 100.0 (Note 1) Shin-Etsu Chemical Co., Ltd.: Mixture of 70-80% by mass of dimethicone + 20-30% by mass of (dimethicone / (PEG-10 / 15)) crosspolymer (Note 2) Shin-Etsu Chemical Co., Ltd.: Mixture of 65-75% by mass of caprylyl methicone + 25-35% by mass of (dimethicone / polyglycerin-3) crosspolymer (Note 3) Shin-Etsu Chemical Co., Ltd.: Mixture of 90-96% by mass of cyclopentasiloxane + 4-10% by mass of (dimethicone / vinyl dimethicone) crosspolymer (Note 4) Shin-Etsu Chemical Co., Ltd.: PEG-9 polydimethylsiloxyethyl dimethicone (Note 5) Shin-Etsu Chemical Co., Ltd.: Caprylyl methicone (Note 6) Shin-Etsu Chemical Co., Ltd.: 40% by mass titanium oxide microparticle dispersion in cyclopentasiloxane (Note 7) Shin-Etsu Chemical Co., Ltd.: 60% by mass zinc oxide microparticle dispersion in dimethicone

[0141] (Production method) A: Components 1 to 8 were mixed uniformly. B: Components 11 to 16 were mixed uniformly. C: While stirring, A was added to B and emulsified, and components 9 and 10 were added to obtain a water-in-oil sunscreen emulsion. The water-in-oil sunscreen emulsion obtained in this manner was highly stable, highly transparent, had a good non-sticky feel when used, and had excellent water resistance. Component 13 was highly stable and easy to handle and dispense.

[0142] Example 30 Oil-in-water Sunscreen Emulsion Composition % 1. Hydrous silica / hydrogen dimethicone-treated fine particle zinc oxide 10 2. Butylene Glycol 2 3. KF-6100 (Note 1) 1.4 4. KM-72 (Note 2) 0.001 5. Water 6.599 6. Cyclopentasiloxane 10 7. KF-56A (Note 3) 3 8. Cetyl alcohol 0.5 9. Polyoxyethylene sorbitan monooleate 2.5 10. Glyceryl stearate (SE) 0.5 11. KF-6011 (Note 4) 1 12. DPG 6 13. Butylene Glycol 6 14. Carboxyvinyl polymer 0.3 15. Acrylic polymer compound 0.3 16. 1. Methylparaben 0.2 2. Phenoxyethanol 0.3 3. EDTA-2Na (Appropriate amount) 4. Water (Remainder) 5. Sodium hydroxide (10% aqueous solution) (Appropriate amount) 6. KM-116 (Note 5) 7. Total 100.0 8. Polyglyceryl-3 disiloxane dimethicone (Note 2) Shin-Etsu Chemical Co., Ltd.: Simethicone emulsion (Note 3) Shin-Etsu Chemical Co., Ltd.: Diphenylsiloxyphenyl trimethicone (Note 4) Shin-Etsu Chemical Co., Ltd.: PEG-11 methyl ether dimethicone (Note 5) Shin-Etsu Chemical Co., Ltd.: (Dimethicone / vinyl dimethicone) crosspolymer emulsion

[0143] (Production method) A: Components 1 to 5 were uniformly dispersed using a high-pressure disperser. B: Components 6 to 8 were uniformly mixed. C: Components 9 to 19 and A were uniformly mixed. D: B was added to C and emulsified, and component 20 was added and mixed uniformly. E: Component 21 was added to D and mixed uniformly. The oil-in-water sunscreen emulsion obtained in this manner was highly stable, highly transparent, had a good non-sticky feel when used, and had excellent water resistance. The dispersion obtained in A was highly stable and easy to handle and pour.

[0144] Example 31 Oil-in-Water Sunscreen Emulsion Composition % 1. KTP-09W (Note 1) 5.0 2. Silicone-treated Zinc Oxide Microparticles (Note 2) 0.5 3. Butylene Glycol 4.0 4. KF-6100 (Note 3) 1.2 5. Ethanol 0.5 6. KM-116 (Note 4) 0.5 7. Ethylhexylglycerin 0.1 8. Ethanol 9.5 9. Butylene Glycol 5.0 10. Sodium acrylate / Sodium acryloyldimethyltaurate copolymer composition (Note 5) 2.5 11. KSP-100W (Note 6) 2.0 12. Water Balance 13. KF-7312J (Note 7) 1.0 14. KF-56A (Note 8) 3.0 15. Cetyl alcohol 2.0 16. Ethylhexyl methoxycinnamate 5.0 17. Diethylamino hydroxybenzoyl hexyl benzoate 1.0 18. Polyoxyethylene (60) hydrogenated castor oil 1.0 19. KF-6011 (Note 9) 0.520. Tocopherol 0.05 Total 100.0

[0145] (Note 1) Shin-Etsu Chemical Co., Ltd.: KF-9909 treated titanium oxide (Note 2) Shin-Etsu Chemical Co., Ltd.: AES-3083 (triethoxycaprylylsilane) treated fine zinc oxide (number average primary particle diameter: 50 nm) (Note 3) Shin-Etsu Chemical Co., Ltd.: Polyglyceryl-3 disiloxane dimethicone (Note 4) Shin-Etsu Chemical Co., Ltd.: (dimethicone / vinyl dimethicone) crosspolymer aqueous dispersion (Note 5) SEPPIC: SIMULGEL EG (Note 6) Shin-Etsu Chemical Co., Ltd.: (vinyl dimethicone / methicone silsesquioxane) crosspolymer hydrophilic treated powder (Note 7) Shin-Etsu Chemical Co., Ltd.: 50% trimethylsiloxysilicate cyclopentasiloxane solution (Note 8) Shin-Etsu Chemical Co., Ltd.: Diphenylsiloxyphenyl trimethicone (Note 9) Shin-Etsu Chemical Co., Ltd.: PEG-11 methyl ether dimethicone

[0146] (Production Method) A: Components 1 to 5 were uniformly dispersed using a roller. B: Components 6 to 12 were heated to 85°C, and the mixture obtained in A was added and mixed uniformly. C: Components 13 to 20 were heated to 85°C and mixed uniformly. D: The mixture obtained in C was added to the mixture obtained in B and emulsified at 85°C, followed by slow cooling with stirring to obtain an oil-in-water sunscreen emulsion. The oil-in-water sunscreen emulsion obtained in this manner was highly stable, had a good non-sticky feel in use, and excellent water resistance. The dispersion of the present invention prepared by Production Method A was excellent in dispersibility, particularly in aqueous media, water resistance, and feel in use, and was easy to handle and dispense. It was highly stable, highly transparent, had a good non-sticky feel in use, and excellent water resistance. The dispersion obtained in A was excellent in stability and was easy to handle and dispense.

[0147] [Example 32] Oil-in-water sunscreen emulsion Composition % 1. Dimethicone-treated fine particle zinc oxide 10 2. Pentylene glycol 2 3. KF-6100 (Note 1) 1.4 4. KM-72 (Note 2) 0.001 5. Water 6.599 6. Homosalate 5 7. KF-56A (Note 3) 3 8. Bis-ethylhexyloxyphenol methoxyphenyl triazine 1.2 9. Sorbitan sesquiisostearate 1.5 10. Glyceryl stearate (SE) 0.5 11. Behenyl alcohol 1 12. Polyglyceryl-10 myristate 3 13. Butylene glycol 6 14. Carboxyvinyl polymer 0.3 15. Acrylic polymer compound 0.3 16. 16. Ethylhexylglycerin 0.5 17. Etidronic acid Appropriate amount 18. Hydrophilic treated fine particle titanium dioxide 5 19. Water Balance 20. Potassium hydroxide (10% aqueous solution) Appropriate amount Total 100.0 (Note 1) Shin-Etsu Chemical Co., Ltd.: Polyglyceryl-3 disiloxane dimethicone (Note 2) Shin-Etsu Chemical Co., Ltd.: Simethicone emulsion (Note 3) Shin-Etsu Chemical Co., Ltd.: Diphenylsiloxyphenyl trimethicone

[0148] (Production method) A: Components 1 to 5 were uniformly dispersed using a bead mill. B: Components 6 to 11 were uniformly mixed. C: Component 18 was dispersed in component 19, and then components 12 to 17 and A were uniformly mixed. D: B was added to C and emulsified, and component 20 was added and mixed uniformly. The oil-in-water sunscreen emulsion obtained in this manner was highly stable, highly transparent, had a good non-sticky feel when used, and had excellent water resistance. The dispersion obtained in A was highly stable and easy to handle and pour.

Claims

1. An aqueous dispersion containing: (a) 10 to 80 mass % of hydrophobic zinc oxide microparticles, the zinc oxide particles having a number-average primary particle diameter of 8 to 200 nm as determined by image analysis of transmission electron microscope photographs and having been hydrophobized with silicone; (b) 1 to 50 mass % of an aqueous component having two or more alcoholic hydroxyl groups; and (c) 1 to 20 mass % of a polyglycerin-modified silicone that dissolves in the component (b).

2. The aqueous dispersion according to claim 1, wherein the total content of components (a), (b) and (c) in the aqueous dispersion is 90% by mass or more.

3. The aqueous dispersion according to claim 1, wherein component (a) is hydrophobized zinc oxide fine particles obtained by treating hydrous silica-coated zinc oxide particles with silicone.

4. The aqueous dispersion according to claim 1, wherein the silicone in component (a) is triethoxycaprylylsilane.

5. The aqueous dispersion according to claim 1, wherein component (b) is an aqueous component having two alcoholic hydroxyl groups.

6. The aqueous dispersion according to claim 1, wherein component (c) is a component that is insoluble in water.

7. The aqueous dispersion according to claim 1, wherein component (c) is polyglyceryl-3 disiloxane dimethicone.

8. The aqueous dispersion according to claim 1, wherein the mass ratio (c) / (b) of the content of the component (c) to the content of the component (b) is 0.2 to 0.

9.

9. The aqueous dispersion according to claim 1, further comprising (d) water: 8 to 82% by mass, and the total content of components (a), (b), (c) and (d) in the aqueous dispersion is 90% by mass or more.

10. A cosmetic preparation containing the aqueous dispersion according to any one of claims 1 to 9.

11. The cosmetic according to claim 10, wherein the cosmetic is an emulsion, an aqueous dispersion is blended in the aqueous phase, and the aqueous phase does not contain (e) hydrophobized titanium oxide fine particles that have a number-average primary particle size of 8 to 200 nm as determined by image analysis of transmission electron micrographs and have been subjected to a hydrophobic treatment.

12. The cosmetic according to claim 10, wherein the cosmetic is an emulsion, the aqueous dispersion is blended in the water phase, and (e) hydrophobized titanium oxide fine particles, which have been subjected to a hydrophobic treatment and have a number-average primary particle size of 8 to 200 nm as determined by image analysis of transmission electron micrographs, are blended in the oil phase.

13. The cosmetic preparation according to claim 10, wherein the cosmetic preparation is an emulsion, an aqueous dispersion is blended in the aqueous phase, and a dispersion of hydrophobized titanium oxide particles is blended in the aqueous phase, the dispersion containing: (e) hydrophobized titanium oxide particles having a number average primary particle diameter of 8 to 200 nm as measured by image analysis of transmission electron micrographs and which have been subjected to a hydrophobic treatment; (b) an aqueous component having two or more alcoholic hydroxyl groups; and (c) a polyglycerin-modified silicone that dissolves in the component (b).

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