Aqueous dispersion and cosmetic containing same

Abstract

A cosmetic containing (a) 10-70% by mass of hydrophobized titanium oxide microparticles which have a number average primary particle diameter of 8-200 nm as determined by an image analysis method using transmission electron microscope photographs and in which titanium oxide particles have been hydrophobized with a silicone, (b) 1.0-30% by mass of an aqueous component having two or more alcoholic hydroxyl groups, (c) 1.0-20% by mass of a polyglycerol-modified silicone dissolved in the component (b), and (e) 0.1-10% by mass of a surfactant. And (d) 8-82% by mass of water. The cosmetic has high stability, excellent transparency, excellent feeling of use (non-stickiness), and excellent water resistance.

Description

Technical Field

[0001] The present invention relates to an aqueous dispersion containing hydrophobic microparticles of titanium dioxide, and cosmetics formulated with the aqueous dispersion. Background Technology

[0002] Typically, in sunscreen cosmetics, inorganic powders such as titanium dioxide and zinc oxide are commonly used to improve transparency and UV shielding effectiveness (Patent Document 1). However, the increased surface area of ​​these inorganic powders leads to enhanced interparticle interactions, resulting in a tendency for them to aggregate.

[0003] For these particulate inorganic powders, hydrophobic surface treatment is sometimes performed to improve the water resistance and blending properties of cosmetics in the oil phase. By blending powders with such hydrophobic surface treatment, it is expected that they will maintain their UV-shielding effect even when wetted by water (Patent Documents 2, 3). On the other hand, when blending particulate inorganic powders in an aqueous phase, powders with hydrophilic surface treatments such as silica are sometimes used. However, these hydrophilic powders have issues with water resistance and user experience. Furthermore, as a method for dispersing hydrophobically treated powders in water, an aqueous dispersion of hydrophobically treated particulate titanium dioxide using polyether-modified organosilicon has been studied. However, this aqueous dispersion of titanium dioxide has issues with water resistance and user experience (Patent Document 4).

[0004] Furthermore, techniques for obtaining dispersible powders by surface treatment of powders using organosilicon surfactants are known. However, research on the dispersion and water resistance of inorganic powders that have undergone hydrophobic treatment is insufficient (Patent Document 5).

[0005] Furthermore, dispersions containing nonionic surfactants have been studied, but sufficient dispersibility was not obtained (Patent Document 6). Therefore, there is a need for dispersions that offer good long-term stability and a pleasant user experience when formulated into cosmetics.

[0006] Existing technical documents

[0007] Patent documents

[0008] Patent Document 1: Japanese Patent Application Publication No. 2006-1886

[0009] Patent Document 2: Japanese Patent Application Publication No. 2014-201569

[0010] Patent Document 3: International Publication No. 2016 / 178380

[0011] Patent Document 4: International Publication No. 2015 / 125622

[0012] Patent Document 5: Japanese Patent Application Publication No. 2020-002031

[0013] Patent Document 6: Japanese Patent Application Publication No. 7-247119 Summary of the Invention

[0014] The problem that the invention aims to solve

[0015] This invention was made in view of the above-mentioned actual situation, and its purpose is to provide an aqueous dispersion of particulate inorganic powder with excellent dispersibility and high dispersion stability in an aqueous medium. Furthermore, it aims to formulate this aqueous dispersion into a cosmetic with high stability, transparency, excellent user experience (non-sticky), and excellent water resistance.

[0016] Methods for solving problems

[0017] To achieve the above objectives, the inventors conducted in-depth research and discovered that even dispersions of titanium dioxide microparticles, which are difficult to disperse, exhibit excellent dispersibility in aqueous media, resulting in an aqueous dispersion with high stability (viscosity stability), long-term stability, excellent usability (non-stickiness), and superior water resistance. When used as a dispersion in cosmetics, it was found to be easy to incorporate and produces cosmetics with excellent transparency, usability, and water resistance, thus completing this invention.

[0018] Therefore, the present invention provides the following aqueous dispersions and cosmetics.

[0019] 1. An aqueous dispersion containing:

[0020] (a) Hydrophobic titanium dioxide microparticles with a number-average primary diameter of 8–200 nm, obtained by image analysis of transmission electron microscopy, and which have undergone hydrophobic treatment with organosilicon: 10–70% by mass.

[0021] (b) Aqueous components having two or more alcoholic hydroxyl groups: 1.0–30% by mass

[0022] (c) Polyglycerol-modified organosilicon dissolved in component (b): 1.0–20% by mass, and

[0023] (d) Water: 8-82% by mass.

[0024] 2. The aqueous dispersion according to 1, wherein (a) component is hydrophobic microparticle titanium dioxide that has undergone hydrophobic treatment on aqueous silica-coated titanium dioxide particles.

[0025] 3. The aqueous dispersion according to 1 or 2, wherein the organosilicon in component (a) is dimethylhydrosiloxane.

[0026] 4. The aqueous dispersion according to any one of 1 to 3, wherein component (b) is an aqueous component having two alcohol hydroxyl groups.

[0027] 5. The aqueous dispersion according to any one of 1 to 4, wherein component (c) is a component that is insoluble in component (d).

[0028] 6. The aqueous dispersion according to any one of 1 to 5, wherein component (c) is polyglycerol-3-disiloxane dimethylpolysiloxane.

[0029] 7. The aqueous dispersion according to any one of 1 to 6, wherein the mass ratio (c) / (b) of the content of component (c) to the content of component (b) is 0.2 to 0.9.

[0030] 8. The aqueous dispersion according to any one of 1 to 7, wherein the total content of components (a), (b), (c) and (d) relative to the entire aqueous dispersion is 90% by mass or more.

[0031] 9. An aqueous dispersion containing:

[0032] (a) Titanium oxide particles selected from hydrous silica-coated titanium oxide particles, and titanium oxide particles selected from hydrous silica-coated and aluminum hydroxide-coated titanium oxide particles, were hydrophobized with organosilicon selected from triethoxyoctylsilane, dimethyl organosilicon, hydrogen dimethyl polysiloxane, triethoxysilyl ethyl polydimethylsiloxane, and triethoxysilyl ethyl polydimethylsiloxane, and obtained by image analysis of transmission electron microscopy with a number-average primary particle size of 8–200 nm: 10–70% by mass.

[0033] (b) Selected from one or more of BG (name), DPG (name), and glycerin: 1.0 to 30% by mass

[0034] (c) Polyglycerol-3-disiloxane dimethylpolysiloxane: 1.0–20% by mass, and

[0035] (d) Water: 8-82% by mass.

[0036] 10. A cosmetic ingredient having an aqueous dispersion formulated according to any one of 1 to 9.

[0037] The effects of the invention

[0038] According to the present invention, an aqueous dispersion with excellent dispersibility in aqueous media, high stability (viscosity stability), long-term stability, excellent user experience (non-stickiness), and excellent water resistance is obtained. When used as a dispersion for cosmetics, it is easy to apply and can provide cosmetics with excellent transparency, user experience, and water resistance. Detailed Implementation

[0039] The present invention will now be described in detail. It should be noted that in this invention, ingredient names are sometimes referred to using cosmetic designations or International Nomenclature of Cosmetic Ingredients (INCI). In cases where the cosmetic designation corresponds to an INCI, the English description may sometimes be omitted.

[0040] [(a) Ingredient]

[0041] The component (a) of this invention comprises hydrophobic titanium dioxide microparticles with a number-average primary particle size of 8–200 nm obtained by image analysis using transmission electron microscopy, and which have undergone hydrophobic treatment with organosilicon. One type can be used alone or in combination of two or more types. Among the titanium dioxide microparticles that have a titanium dioxide UV-shielding effect and are used as UV scattering agents, any raw material that can typically be mixed in cosmetics is acceptable. It can be a composite powder with two or more of zinc oxide and cerium oxide, or a composite powder with other powders.

[0042] Regarding titanium dioxide microparticles, to reduce agglomeration and suppress powder activity, surface treatment with silica, hydrated silica, alumina, or aluminum hydroxide can be performed before hydrophobic treatment. Furthermore, when compounding cosmetics, alumina and aluminum hydroxide are not preferred surface treatment agents if there are concerns about hindering the swelling of concurrently used water-soluble polymers or reducing water resistance. Considering the difficulty in suppressing powder activity and hindering the swelling of water-soluble polymers, hydrated silica-coated titanium dioxide particles with a surface treatment of hydrated silica are preferred. It should be noted that "coating" refers to partially or completely covering the titanium dioxide particles.

[0043] In this invention, titanium dioxide particles are hydrophobically treated with organosilicon. Examples of organosilicon used in the hydrophobic treatment include silanes or silanizing agents such as triethoxyoctylsilane (manufactured by Shin-Etsu Chemical Co., Ltd.: AES-3083), dimethyl organosilicon (manufactured by Shin-Etsu Chemical Co., Ltd.: KF-96AK series), methyl hydrogen polysiloxanes such as dimethylhydrogen disiloxane (manufactured by Shin-Etsu Chemical Co., Ltd.: KF-99P, KF-9901, etc.), branched organosilicon such as triethoxysilyl ethyl polydimethylsiloxane oxyethylhexyl dimethyl polysiloxane and triethoxysilyl ethyl polydimethylsiloxane oxyethylhexyl dimethyl polysiloxane (manufactured by Shin-Etsu Chemical Co., Ltd.: KF-9908, KF-9909, etc.). In particular, if the component contains one or more of the following: triethoxyoctylsilane, triethoxysilylethyl polydimethylsiloxane, triethoxysilylethyl polydimethylhexyl polysiloxane, and dimethylhydrosiloxane, the hydrophobic treatment becomes effective, and it is preferred in terms of dispersibility with component (c). There are no particular limitations on the hydrophobic treatment method; known methods can be used. Examples include wet treatment, dry treatment, and gas-phase treatment.

[0044] These surface-treated microparticle titanium dioxides can also be commercially available. For example, they are commercially available under trade names such as MT-01, 02, 050OTS, 100Z, 100TV, 100SAS, 150EX, 200ST, 500SAM, 505SAS, 700Z, 700BS (manufactured by TAYCA Co., Ltd.), ST-455, 455WS, 457ECS, 457SA, 495M, 455FA (manufactured by Titanium Industry), STR-100A-LP, 100C-LP, 100W-LP, 100C-LF, and 40-LP (manufactured by Sakai Chemical Industry Co., Ltd.). STR-100W-LP is an example of hydrophobic microparticle titanium dioxide, where the aqueous silica-coated titanium dioxide particles have been hydrophobically treated. Furthermore, as component (a), it is preferable that the product does not contain a dispersion in which the particles are pre-dispersed in an oiling agent.

[0045] (a) The number-average primary particle size of component (a) obtained by image analysis of transmission electron microscopy photographs is 8–200 nm, preferably 10–150 nm. If it exceeds 200 nm, the ultraviolet protection function is reduced, leaving a white residue. If the particle size is less than 8 nm, the dryness may be enhanced, resulting in a poorer user experience. The average primary particle size of component (a) of the present invention is the average diameter of 200 particles determined by image analysis based on transmission electron microscopy photographs. When the powder is not spherical, the average value of the minor axis of the particles is taken as the average primary particle size. Examples of the shape of particulate titanium dioxide include spindle-shaped, needle-shaped, bundle-shaped, strip-shaped, roughly spherical, and rod-shaped.

[0046] (a) The content of the component is 10 to 70% by mass in the aqueous dispersion. From the perspective of usability, it is preferred to be 10 to 65% by mass, more preferably 15 to 60% by mass, and even more preferably 20 to 55% by mass. If it is less than 10% by mass, sufficient UV shielding effect will not be obtained. If it is more than 70% by mass, the spreadability during use may be poor, the historical stability of the dispersion may be reduced, and the viscosity may be increased.

[0047] [(b) Components]

[0048] The component (b) of the present invention is an aqueous component having two or more alcohol hydroxyl groups, that is, a component that is soluble in water at 25°C, and can be used alone or in combination of two or more. Specifically, examples include sorbitol (INCI), maltose (INCI), xylitol (INCI), glucose (INCI), glyceryl glucoside (INCI), sodium chondroitin sulfate (INCI: Sodium Chondroitin Sulfate), methyl glucetol polyether-10 (INCI), methyl glucetol polyether-20 (INCI), hyaluronic acid, phosphatidylglycerol, phosphatidylinositol and other sugar alcohols, BG (INCI: Butylene Glycol), PG (INCI: Propylene Glycol), DPG (INCI: Dipropylene Glycol), pentylene glycol (INCI), 1,10-decanediol (INCI), octyl glycol (INCI), 1,2-hexanediol (INCI) and other diols, erythritol (INCI), glycerol (INCI), diglycerol (INCI), polyethylene glycol and other polyols. Among these, diols such as BG (butanediol) and DPG (dipropylene glycol), and polyols such as glycerin are preferred, considering their solubility in water in any proportion, user experience, and versatility as cosmetic ingredients. In particular, diols having two hydroxyl groups in their molecules are more preferred.

[0049] (b) The content of component (b) in the aqueous dispersion is 1.0–30% by mass, preferably 5–25% by mass, and more preferably 7–15% by mass from the perspective of water resistance. From the perspective of long-term stability, it is even more preferably 15–25% by mass, and particularly preferably 15–20% by mass. If it is less than 1.0% by mass, the stability of the dispersion deteriorates; if it exceeds 30% by mass, the cosmetic becomes sticky to use, and component (b) hinders the orientation of component (c) (described later) in component (a), sometimes increasing viscosity and sometimes impairing dispersibility in aqueous media. By blending component (b), component (c) can be uniformly oriented on the surface of component (a).

[0050] [(c) Components]

[0051] Component (c) of the present invention is a polyglycerol-modified organosilicon dissolved in component (b), which can be used alone or in combination of two or more. By using the polyglycerol-modified organosilicon dissolved in component (b), it is possible to mix the polyglycerol-modified organosilicon in water and function as a dispersant for hydrophobic titanium dioxide particles in water. It should be noted that "dissolved in component (b)" means that when component (c) is mixed with component (b) at a concentration of 20% by mass and then left to stand at 25°C for 1 hour, a state of being without boundaries and transparent to translucent is recorded as "dissolved," and a state of being turbid and separated into two layers is recorded as "not dissolved." In addition, "transparent to translucent" means that when the mixture is filled into a 1 cm thick pool, the total light transmittance measured according to the method described in JIS K7361-1:1997 is 50% or more. Furthermore, even if it is a polyglycerol-modified organosilicon, polyglycerol-modified organosilicon that is not dissolved in component (b) does not conform to component (c) of the present invention.

[0052] In terms of chemical structure, the polyglycerol-modified organosilicon uses polyglycerol, and the organosilicon chain as the main chain can be modified by either block or graft modification. From the perspective of maintaining the uniform dispersion of component (a) in cosmetics, a branched chain type is preferred. The organosilicon main chain may have branched chains such as organosilicon chains. Specifically, examples include polyglycerol-3-disiloxane dimethylpolysiloxane (INCI). From the perspective of water resistance, component (c) is preferably a component that dissolves at 25°C when mixed in BG at a concentration of 20% by mass, but does not dissolve at 25°C when mixed in water at a concentration of 20% by mass. The polyglycerol-modified organosilicon of the present invention can be co-modified using hydrophilic groups other than polyglycerol groups, but more than 50% by mass of the hydrophilic groups are polyglycerol groups. From the perspective of water resistance, organosilicon modified only with polyglycerol groups is preferred.

[0053] Furthermore, the HLB (Hydrophile-Lipophile Balance) value of the polyglycerol-modified organosilicon used in this invention is preferably 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. By setting it to 3 or more, dispersibility is further improved, and by setting it to less than 17, water resistance is further improved. It should be noted that HLB is calculated using the formula weight of the hydrophilic groups / total molecular weight × 20.

[0054] The content of component (c) is 1.0–20% by mass of the aqueous dispersion, preferably 3–15% by mass, more preferably 4–10% by mass, and even more preferably 5–8% by mass. If it is less than 1.0% by mass, the stability of the dispersion may deteriorate. In addition, if it exceeds 20% by mass, the product formed by component (c) being oriented towards component (a) may become further oriented, or the component (c) oriented towards component (a) may easily peel off due to the unoriented component (c) in component (a). As a result, the viscosity of the dispersion may sometimes increase, which may affect its dispersibility in an aqueous medium.

[0055] 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 particular, considering dispersibility and water resistance, a ratio of 0.3 to 0.8 is more preferred, and 0.4 to 0.5 is even more preferred. By making this ratio 0.2 or higher, component (c) is more likely to orient towards component (a), thus suppressing viscosity increases and further improving stability. On the other hand, by making it 0.9 or lower, component (c) is dispersed by the dispersion medium, is more likely to orient towards component (a), thus suppressing viscosity increases and further improving stability.

[0056] [(d) Components]

[0057] The (d) component of this invention is water. Ion-exchanged water, distilled water, deionized water, purified water as defined in the Japanese Pharmacopoeia, hot spring water, deep-sea water, etc., can be used as the water.

[0058] The content of component (d) is 8 to 82% by mass of the aqueous dispersion, preferably 18 to 72% by mass, and more preferably 28 to 40% by mass. Even if it is less than 8% by mass, a stable dispersion is obtained, but it is difficult to achieve the goal of low viscosity by mixing component (d). On the other hand, if it exceeds 82% by mass, problems may arise in terms of long-term stability.

[0059] The total content of components (a), (b), (c), and (d) relative to the entire aqueous dispersion of the present invention is preferably 90 to 100% by mass, more preferably 95 to 100% by mass, and even more preferably 99 to 100% by mass. By making the total content of components (a), (b), (c), and (d) 90% by mass or more, the influence of components other than (a), (b), (c), and (d) is minimized, and a dispersion with better stability and user experience can be prepared.

[0060] Furthermore, to improve processability during preparation and filling, defoamers can be added to the aqueous dispersion. Examples of defoamers include salts such as dimethylpolysiloxane (INCI), sodium chloride (INCI: Sodium Chloride), and polyether-modified silicones. Additionally, oil-based pre-emulsified emulsions such as dimethylpolysiloxane can be used, as well as self-emulsifying types pre-mixed with silicone surfactants such as dimethylpolysiloxane. Among these, dimethylpolysiloxane and sodium chloride are particularly preferred in terms of defoaming and foam-suppressing properties, while dimethylpolysiloxane is most preferred in terms of affinity with cosmetic components. When a defoamer is incorporated, its amount is preferably 0.0001 to 1% by mass of the total aqueous dispersion, more preferably 0.0025 to 0.6% by mass, and even more preferably 0.005 to 0.01% by mass.

[0061] [Aqueous Dispersion]

[0062] The aqueous dispersion according to the present invention is easy to mix in an aqueous medium. It should be noted that the term "dispersion" in "aqueous dispersion" refers to a composition containing 8 to 82% by mass of water, in which precipitation is temporarily observed using the dispersibility test method described in the examples described later, but is uniformly dispersed if stirring is continued.

[0063] [Morphology of aqueous dispersions]

[0064] The dispersion of the present invention preferably has a viscosity of 10 mPa·s or more and less than 200,000 mPa·s, and is a liquid; more preferably, it has a viscosity of 10 mPa·s or more and less than 10,000 mPa·s; and even more preferably, it has a viscosity of 10 mPa·s or more and less than 5,000 mPa·s. By setting it to 10 mPa·s or more, the stability of the dispersion is further improved. On the other hand, from the perspective of processability, it is preferable to have a viscosity of 200,000 mPa·s or less. It should be noted that the viscosity is measured using the method described in JIS K 7117-1:1999, which is the value measured at 25°C using a type B viscometer (TVB-10 type, manufactured by Toki Sangyo).

[0065] [Method for manufacturing aqueous dispersions]

[0066] When preparing the aqueous dispersion of the present invention, there are no particular limitations on the method and apparatus, and known methods can be used. For example, a Henschel mixer, ball mill, kneader, planetary mixer, ribbon mixer, disper mixer, homogeneous mixer, jet mill, roller mill, bead mill, high-pressure disperser, etc., or any mixer, pulverizer, blender, media mixer, rotary mixer, disperser, etc. can be used. In particular, from the viewpoint of mixing efficiency, bead mills and high-pressure dispersers are preferred for dispersion.

[0067] [Cosmetic Ingredients]

[0068] The aqueous dispersion of the present invention can be used in a variety of applications, and in particular, it can be used as a raw material for all cosmetics applied externally to the skin and hair.

[0069] When the aqueous dispersion of the present invention is incorporated into a cosmetic, the amount relative to the total amount of 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, sufficient UV protection effect can be expected, and by making it 60% by mass or less, the user experience is further improved.

[0070] Cosmetics containing the aqueous dispersion of the present invention can be in the form of, for example, water-in-oil emulsions, oil-in-water emulsions, aqueous cosmetics, W / O / W emulsions, O / W / O emulsions, or any other type of multi-emulsion. In particular, when used as a dispersion for oil-in-water emulsions, it is easy to apply and can produce stable cosmetics with excellent transparency, user experience, and water resistance.

[0071] The cosmetic material of the present invention can be in various forms, including liquid, emulsion, cream, solid, paste, gel, powder, pressed form, multilayer, mousse, spray, stick, and pencil. Multilayer refers to a cosmetic material that separates into two or more layers when left to stand. It is filled into a container containing stainless steel balls or the like and used after shaking. The dispersion of the present invention has good dispersibility and is easily redispersible even in such dosage forms. While shake-type products are easy to stabilize and offer excellent user experience, they require shaking. The cosmetic material of the present invention has good stability and can be used without separating into multiple layers. Spray refers to a spray-type cosmetic material filled into a dispenser container, aerosol container, or the like and sprayed from a nozzle. The cosmetic material filled into the dispenser container is sprayed as a mist from the nozzle of the dispenser. The cosmetic material and the spray agent are filled together into an aerosol container. The spray agent is not particularly limited; for example, various types of liquefied petroleum gas (LPG), dimethyl ether, nitrogen, carbon dioxide, etc., can be used. These can be used alone or in appropriate combinations of two or more. The aqueous dispersions of the present invention have high dispersibility, so even in such dosage forms, they can be used.

[0072] The aqueous dispersion of the present invention can be applied to various cosmetics, particularly skin care cosmetics, makeup cosmetics, antiperspirant cosmetics, UV protection cosmetics, and other cosmetics for external use on the skin, and hair cosmetics, such as hair cosmetics. Examples of skin care cosmetics include toners, lotions, creams, cleansing balms, masks, oils, massage products, beauty serums, beauty oils, cleansers, deodorants, hand creams, lipsticks, and wrinkle creams. Examples of makeup cosmetics include makeup bases, concealers, powders, pressed powders, eyeshadows, mascaras, eyeliners, eyebrow pencils, and lipsticks. Examples of antiperspirant cosmetics include roll-on, cream, solution, and stick antiperspirant cosmetics. Examples of UV protection cosmetics include sunscreen oils, sunscreen lotions, and sunscreen creams. Examples of hair cosmetics include shampoos, conditioners, hair treatments, and styling agents. Among these, UV protection cosmetics are preferred.

[0073] The cosmetics of the present invention can contain various ingredients commonly used in cosmetics without impairing the effects of the present invention. For example, they may contain (1) an oil, (2) an aqueous component excluding components (b) and (d), (3) a surfactant excluding component (c), (4) a powder excluding component (a), (5) a composition consisting of a cross-linked organopolysiloxane and an oil that is liquid at room temperature, (6) a film-forming agent, and (7) other additives. These may be used individually or in combination of two or more appropriately. Furthermore, the components contained in the above dispersion may be blended. However, even if components (a) to (d) of the present invention are blended without blending the dispersion of the present invention, the significant effects of the present invention cannot be obtained. The amounts of components (a) to (d) other than the dispersion are not particularly limited as long as they are within a range that does not impair the effects of the present invention. When the components are separately blended with the dispersion in a cosmetic, the amounts excluding those in the dispersion are, for example, 0.0 to 20% by mass of component (a) in the cosmetic, more preferably 0.0 to 10% by mass. The amounts of component (b) are preferably 0.0 to 70% by mass of component (b), more preferably 0.0 to 50% by mass, and even more preferably 0.0 to 25% by mass. The amounts of component (c) are preferably 0.0 to 3.0% by mass of component (c), more preferably 0.0 to 1.0% by mass. The dispersion of the present invention has high stability and does not impede the performance of emulsifiers and dispersants in the cosmetic when blended in it, thus reducing the amount of component (c) other than the dispersion.

[0074] (1) Oil

[0075] Oils can be volatile or non-volatile, and can be solid, semi-solid, or liquid at room temperature (25°C). Examples include silicone oil, organosilicon wax, natural animal and vegetable oils and semi-synthetic oils, hydrocarbon oils, higher alcohols, fatty acids, ester oils, fluorinated oils, and ultraviolet absorbers.

[0076] Silicone oil

[0077] Examples of silicone oils include alkyl-modified organosilicones such as dimethylpolysiloxane (INCI), trisiloxane (INCI), methyltrimethylpolysiloxane (INCI), ethyltrisiloxane (INCI), ethylmethylpolysiloxane (INCI), and hexyldimethylpolysiloxane (INCI); long-chain alkyl-modified organosilicones such as octylmethylpolysiloxane (INCI); low-viscosity to high-viscosity linear or branched organopolysiloxanes such as phenyltrimethylpolysiloxane (INCI), diphenyldimethylpolysiloxane (INCI), diphenylsiloxyphenyltrimethylpolysiloxane (INCI), tetraphenyldimethyldisiloxane (INCI), and methylhydropolysiloxane; and cyclotetrasiloxane (INCI) and cyclopentasiloxane. Cyclic organopolysiloxanes such as cyclohexane (INCI) and cyclohexasiloxane (INCI), amino-terminated dimethyl polysiloxane (INCI), aminopropyl dimethyl polysiloxane (INCI) and other amino-modified organopolysiloxanes, pyrrolidone-modified organopolysiloxanes such as PCA dimethyl polysiloxane (INCI), defoamers such as dimethyl polysiloxane (INCI), pyrrolidone carboxylic acid-modified organopolysiloxanes, high-polymerization degree viscous dimethyl polysiloxanes, viscous amino-modified organopolysiloxanes, viscous dimethylsiloxane-methylphenyl siloxane copolymers and other silicone rubbers, and low-viscosity organopolysiloxane solutions of silicone adhesives or rubbers, amino acid-modified silicones, fluorine-modified silicones, silicone resins and silicone resin solutions, etc.

[0078] Examples of commercially available silicone oils include those manufactured by Shin-Etsu Chemical Co., Ltd.: KF-96L-1cs, KF-96L-1.5cs, KF-96L-2cs, KF-96A-6cs, KF-4422, KF-4418, KF-54, KF-54HV, KF-56A, KF-995, etc.

[0079] • Solid oily components

[0080] In this invention, when it is desired to solidify the cosmetic, it is preferable to incorporate 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. Examples include waxes, hydrocarbons, esters, higher alcohols, and higher fatty acids; there are no particular limitations as long as the raw material is commonly incorporated into cosmetics. Specifically, examples include carnauba wax (INCI: Copernicia Cerifera (Carnauba) Wax), sugarcane wax, candelilla wax (INCI: Euphorbia Cerifera (Candelilla) Wax), refined candelilla wax, rice wax, wood wax, jojoba wax, kapok wax, rice bran wax, bayberry wax, shea butter, cocoa butter, rhubarb wax (INCI: Rhus Succedanea Fruit Wax), lignite wax (INCI: Montan Wax), hydrogenated castor oil with isostearate, and other plant-based waxes; beeswax, tallow, beef tallow, lard (INCI: Lard), and horse tallow (INCI: Horse). Animal waxes such as fat, lanolin, lanolin (INCI: Lanolin), scale insect wax, purple insect glue wax, and whale wax; semi-synthetic waxes such as lanolin esters, lanolin fatty acid esters, and beeswax esters; hardened oils such as hardened castor oil and hardened coconut oil; hydrocarbon waxes such as solid paraffin wax, polyethylene wax, refined cereswax, crude cereswax, and microcrystalline wax; wax esters such as synthetic beeswax; amino acid stearyl alcohol esters such as lauroyl glutamic acid dioctyl dodecyl ester, lauroyl glutamic acid dioctyl dodecyl ester, lauroyl glutamic acid dioctyl dodecyl ester, and fatty acids such as stearic acid and bezoaric acid; and organosilicon waxes such as acrylic-organosilicon grafted or block copolymers of acrylic-organosilicon resins (Shin-Etsu Chemical Industry Co., Ltd.: acrylic-organosilicon graft copolymers: KP-561P, etc.), or derivatives thereof, preferably selected from one or more of these.

[0081] • Natural animal and vegetable oils and semi-synthetic oils

[0082] Examples of natural and semi-synthetic oils include avocado oil (INCI: Persea Gratissima (Avocado) Oil), flaxseed oil (INCI: Linum Usitatissimum (Linseed) Seed Oil), almond oil (INCI: Prunus Amygdalus Dulcis (Sweet Almond) Oil), perilla oil, olive oil (INCI: Olea Europaea (Olive) Fruit Oil), California torreya oil (INCI: Torreya Californica (California Nutmeg) Oil), citronella oil (INCI: Cymbopogon Nardus (Citronella) Oil), torreya seed oil (INCI: Torreya Nucifera Seed Oil), and almond oil (INCI: Kyounin). Yu), wheat germ oil (INCI: Triticum Vulgare (Wheat) Germ Oil), sesame oil (INCI: Sesamum Indicum (Sesame) Seed Oil), wheat germ oil (INCI: Triticum Vulgare (Wheat) Germ Oil), rice germ oil (INCI: Oryza Sativa (Rice) Germ Oil), rice bran oil (INCI: Oryza Sativa (Rice) Bran Oil), camellia oil (INCI: Camellia Kissi Seed Oil), safflower oil (INCI: Carthamus Tinctorius (Safflower) Seed Oil), soybean oil (INCI: Glycine Soja (Soybean) Oil), tea seed oil (INCI: Camellia Sinensis Seed Oil) Camellia Japonica Seed Oil, Evening Primrose Oil, Rapeseed Oil, Corn Germ OilOils such as wheat germ oil (INCI: Triticum Vulgare (Wheat) Germ Oil), peach kernel oil (INCI: Triticum Vulgare (Wheat) Germ Oil), palm oil (INCI: Elaeis Guineensis (Palm) Oil), palm kernel oil (INCI: Elaeis Guineensis (Palm) Kernel Oil), castor oil (INCI: Ricinus Communis (Castor) Seed Oil), sunflower seed oil (INCI: Helianthus Annuus (Sunflower) Seed Oil), grape seed oil (INCI: Vitis Vinifera (Grape) Seed Oil), jojoba seed oil (INCI: Simmondsia Chinensis (Jojoba) Seed Oil), macadamia seed oil (INCI: Macadamia Ternifolia Seed Oil), and meadowfoam seed oil (INCI: Limnanthes) Natural plant oils such as Alba (Meadowfoam) Seed Oil, cottonseed oil (INCI: Gossypium Herbaceum (Cotton) Seed Oil), coconut oil (INCI: Cocos Nucifera (Coconut) Oil), and peanut oil (INCI: Arachis Hypogaea (Peanut) Oil), as well as natural animal oils such as shark liver oil (INCI: Shark Liver Oil), cod liver oil (INCI: Cod Liver Oil), fish liver oil (INCI: Fish Liver Oil), turtle oil (INCI: Turtle Oil), mink oil (INCI: Mink Oil), and egg yolk oil (INCI: Egg Oil), and semi-synthetic oils such as hydrogenated coconut oil (INCI: Hydrogenated Coconut Oil) and liquid lanolin (INCI: Lanolin Oil).

[0083] Hydrocarbon oil

[0084] As hydrocarbon oils, examples include linear or branched hydrocarbon oils, which can be volatile or non-volatile. Specifically, examples include olefin oligomers (INCI), isoalkanes such as (C13, 14) isoalkanes (INCI), isododecane (INCI), undecane (INCI), tridecane (INCI), dodecane (INCI), isohexadecane (INCI), hydrogenated polyisobutene (INCI), squalane (INCI), mineral oil (INCI), coconut alkane (INCI), (C13-15) alkanes (INCI), and other alkanes.

[0085] Higher alcohols

[0086] Examples of higher alcohols include those with 6 or more carbon atoms, more preferably 10 to 30. Specific examples of higher alcohols include lauryl alcohol (INCI), myristyl alcohol (INCI), palmitol (INCI), stearyl alcohol (INCI), betaine alcohol (INCI), oleyl alcohol (INCI), isostearyl alcohol (INCI), octyldodecanool (INCI), cholesterol (INCI), phytosterol (INCI), and squalene (INCI).

[0087] ·Ester oil

[0088] As ester oils, examples include diisobutyl adipate, dihexyldecyl adipate, diheptylundecyl adipate, isostearyl isostearate, monoisostearic acid alkyl glycol esters, isocetyl isostearate, trimethylolpropane triisostearate, ethylene glycol diethylhexanoate, cetyl ethylhexanoate, and trimethylolpropane triethylhexanoate. Triethylhexanoate), pentaerythrityl tetraethylhexanoate, cetyl octanoate, octyl dodecyl stearate, oleyl oleate, octyl dodecyl oleate, decyl oleate, neopentyl glycol dioctanoate, neopentyl glycol dicaprate, and diisostearyl malate. Malate), Triethyl Citrate (INCI: Triethyl Citrate), Diethylhexyl Succinate (INCI: Diethylhexyl Succinate), Amyl Acetate (INCI: Amyl Acetate), Ethyl Acetate (INCI: Etyl Acetate), Butyl Acetate (INCI: Butyl Acetate)Aceetate), isocetyl stearate (INCI: Isocetyl Stearate), butyl stearate (INCI: Butyl Stearate), diisopropyl sebacate (INCI: Diisopropyl Sebacate), diethylhexyl sebacate (INCI: Diethylhexyl Sebacate), cetyl lactate (INCI: Cetyl Lactate), myristyl lactate (INCI: Myristyl Lactate), isononyl isononanoate (INCI: Isononyl Isononanoate), isotrimethylenetetradecyl isononanoate (INCI: Isotridecyl Isononanoate), isopropyl palmitate (INCI: Isopropyl Palmitate), ethylhexyl palmitate (INCI: Ethylhexyl Palmitates such as Isopalmitate, Hexyldecyl Palmitate (INCI: Isocetyl Palmitate, Hexyldecyl Palmitate), Cholesteryl Hydroxystearate, Isopropyl Myristate, Octyldodecyl Myristate, Myristyl Myristate, Ethylhexyl Laurate, Hexyl Laurate, Dioctyl Dodecyl Lauroyl Glutamate, and Isopropyl Lauroyl Sarcosinate Lauroyl Sarcosinate), (octanoic acid / decanoic acid) coconut alkyl ester (INCI: Coco-Caprylate·Caprate) etc.

[0089] In addition, among ester oils, glyceryl ester oils include glyceryl tri(ethylhexanoate) ester (indicating name (INCI:)), tri(caprylic / capric triglyceride) ester (indicating name (INCI: Caprylic / Capric Triglyceride)), coconut oil glyceride (INCI), tri(caprylic / capric / succinic triglyceride) ester (indicating name (INCI: Caprylic / Capric / Succinic Triglyceride)), and (caprylic / capric triglyceride) ester (indicating name (INCI: Caprylic / Capric Glycerides)).

[0090] Fluorinated oils

[0091] Examples of fluorinated oils include perfluorodecahydronaphthalene (INCI), perfluorononyldimethylpolysiloxane (INCI), and perfluoromethylcyclopentane (INCI).

[0092] • Ultraviolet absorbers

[0093] Examples of UV absorbers include benzophenone-1 (INCI: Benzophenone-1), benzophenone-2 (INCI: Benzophenone-2)), benzophenone-3 (INCI: Benzophenone-3)), benzophenone-4 (INCI: Benzophenone-4)), benzophenone-5 (INCI: Benzophenone-5)), benzophenone-6 (INCI: Benzophenone-6)), benzophenone-9 (INCI: Benzophenone-9)), homosalate (INCI), octocrylene (INCI), tert-butylmethoxydibenzoylmethane (INCI: Butyl Methoxydibenzoylmethane) and ethylhexyl salicylate (INCI: Ethylhexyl... Salicylate), Diethylaminohydroxybenzoylhexyl benzoate (INCI: Diethylamino Hydroxybenzoyl Hexyl Benzoate), Polysiloxane-15 (INCI), Ethylhexyl Dimethoxybenzylidene Dioxoimidazolidine Propionate (INCI: Ethylhexyl Dimethoxybenzylidene Dioxoimidazolidine Propionate), Terephthalylidene Dicamphor Sulfonic Acid (INCI: Terephthalylidene Dicamphor Sulfonic Acid), Ethylhexyl Triazine (INCI), Isopentyl Trimethoxycinnamate Trisiloxane (INCI: Isopentyl Trimethoxycinnamate Trisiloxane), Cresoltrazol Trisiloxane (INCI), Ethylhexyl Dimethyl PABA (INCI: Ethylhexyl Dimethyl PABA), isopropyl methoxycinnamate (INCI: Isopropyl Methoxycinnamate), ethylhexyl methoxycinnamate (INCI: EthylhexylMethoxycinnamate), bis(ethylhexyl)oxyphenol methoxyphenyltriazine (INCI), phenylbenzimidazole sulfonic acid (INCI: Phenylbenzimidazole sulfonic acid)Acid), methylene bisbenzotriazolyl tetramethyl butylphenol (INCI), glyceryl ethylhexanoate dimethoxycinnamate (INCI: Glyceryl Ethylhexanoate Dimethoxycinnamate), glyceryl PABA (INCI), methyl diisopropyl cinnamate (INCI: Diisopropyl Methyl Cinnamate), cinnamate (INCI), ethylhexyl dimethoxybenzylidene dioxoimidazolidine propionate (INCI: Ethylhexyl Dimethoxybenzylidene Dioxoimidazolidine Propionate), etc.

[0094] (2) Aqueous components excluding (b) and (d)

[0095] Water-based ingredients do not include ingredients (b) and (d) above. There are no particular limitations as long as they are water-based ingredients that can be commonly mixed in cosmetics. Specifically, examples include betaine (INCI), PCA-Na (Index name: Sodium PCA), egg yolk lecithin, soybean lecithin, phosphatidylcholine, phosphatidylethanolamine, phosphatidylserine, sphingosine phospholipids, and other moisturizers. Additionally, examples include gum arabic, guar gum, carrageenan, agar, quince seed gum, locust bean gum, xanthan gum, amylopectin, sodium carboxymethyl cellulose, hydroxyethyl cellulose, carboxyvinyl polymers and other vinyl polymers, (acryloyl dimethyl taurate / vinylpyrrolidone) copolymers, (sodium acrylate / sodium acryloyl dimethyl taurate) copolymers, (hydroxyethyl acrylate / sodium acryloyl dimethyl taurate) copolymers, (acrylamide / sodium acryloyl dimethyl taurate) copolymers, polyacrylamide and other acrylic polymers, and other water-soluble polymers. By using acrylic polymers, it is relatively easy to stabilize oil-in-water cosmetics.

[0096] (3) Surfactants excluding component (c)

[0097] As surfactants, there are nonionic, anionic, cationic, and amphoteric surfactants, and there are no particular limitations. Any ingredient that does not include component (c) mentioned above and is commonly used in cosmetics can be used. Among these surfactants, cosmetics that achieve stability from one or more non-crosslinked silicone surfactants or crosslinked silicone surfactants are preferred. In all cases where surfactants are blended, the amount is preferably 0.1% to 20% by mass of the total cosmetic. If it is 0.1% or more, the dispersing and emulsifying functions can be fully utilized; if it is 20% or less by mass, there is no need to worry about the cosmetic becoming sticky, and therefore it is preferred. There is no limitation on the HLB of the surfactant; from the perspective of maintaining the water resistance of the cosmetic, 2% to 14.5% is preferred.

[0098] As a non-crosslinked organosilicon surfactant, it is a product in which a portion of the methyl group of a linear or branched organosilicon backbone is replaced by a hydrophilic group such as polyethylene glycol or polyglycerol. Specifically, it is preferably a linear or branched polyoxyethylene-modified organopolysiloxane, a linear or branched polyoxyethylene-polyoxypropylene-modified organopolysiloxane, a linear or branched polyoxyethylene-alkyl co-modified organopolysiloxane, a linear or branched polyoxyethylene-polyoxypropylene-alkyl co-modified organopolysiloxane, a linear or branched polyglycerol-modified organopolysiloxane, a linear or branched polyglycerol-alkyl co-modified organopolysiloxane, or a linear or branched pyrrolidone-modified organopolysiloxane. Examples include PEG-11 methyl ether dimethyl polysiloxane (INCI), PEG / PPG-20 / 22 butyl ether dimethyl polysiloxane (INCI), PEG-3 dimethyl polysiloxane (INCI), PEG-10 dimethyl polysiloxane (INCI), PEG-9 polydimethylsiloxyethyl dimethyl polysiloxane (INCI), lauryl PEG-9 polydimethylsiloxyethyl dimethyl polysiloxane (INCI), cetyl PEG / PPG-10 / 1 dimethyl polysiloxane (INCI), polyglycerol-3 polydimethylsiloxyethyl dimethyl polysiloxane (INCI), lauryl polyglycerol-3 polydimethylsiloxyethyl dimethyl polysiloxane (INCI), and isostearyl polyglycerol-3 dimethyl polysiloxane (INCI).

[0099] Examples of commercially available products include those manufactured by Shin-Etsu Chemical Co., Ltd.: 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, KF-6115, etc.

[0100] Examples of cross-linked silicone surfactants include (dimethylpolysiloxane / (PEG-10 / 15)) cross-linked polymer (INCI), (PEG-15 / lauryl dimethylpolysiloxane) cross-linked polymer (INCI), (PEG-10 / lauryl dimethylpolysiloxane) cross-linked polymer (INCI), (PEG-15 / lauryl polydimethylsiloxyethyl dimethylpolysiloxane) cross-linked polymer (INCI), (dimethylpolysiloxane / polyglycerol-3) cross-linked polymer (INCI), (lauryl dimethylpolysiloxane / polyglycerol-3) cross-linked polymer (INCI), and (polyglycerol-3 / lauryl polydimethylsiloxyethyl dimethylpolysiloxane) cross-linked polymer (INCI). Furthermore, when using a cross-linked silicone surfactant, in a composition consisting of the cross-linked silicone surfactant and an oil that is liquid at room temperature, it is preferable that the cross-linked silicone surfactant swells relative to the liquid oil, with the liquid oil containing more than its own weight in the liquid oil.

[0101] As the liquid oil, the following liquids can be used as optional components: (1) liquid silicone oil, hydrocarbon oil, ester oil, natural animal and vegetable oil, semi-synthetic oil, fluorinated oil, etc., such as cyclopentasiloxane (INCI), dimethyl polysiloxane (INCI), octylmethyl polysiloxane (INCI), mineral oil (INCI), isododecane (INCI), isohexadecane (INCI), triglyceride (INCI), isotrimethylenetetradecyl isononanoate (INCI: IsotridecylIsononanoate), squalane (INCI), etc.

[0102] Examples of commercially available cross-linked silicone surfactants that swell due to the presence of liquid oils include those manufactured by Shin-Etsu Chemical Co., Ltd.: 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, KSG-850Z, etc.

[0103] (4) Powders that do not include component (a)

[0104] Examples of powders that do not include component (a) include coloring pigments, inorganic powders, metallic powders, organic powders, and inorganic-organic composite powders. These are described in detail below.

[0105] Coloring pigments

[0106] As coloring pigments, there are generally no special limitations as long as the pigment is used for the purpose of coloring cosmetics. Examples include red iron oxides (INCI: Iron Oxides), yellow iron oxides (INCI: Iron Oxides), white titanium dioxide (INCI: Titanium Dioxide), black iron oxides (INCI: Iron Oxides), ultramarine (INCI: Ultramarines), cyan (INCI: Ferric Ferrocyanide, Ferric Ammonium Ferrocyanide), manganese violet (INCI: Manganese Violet), cobalt titanate (INCI: Cobalt Titanium Oxide), chromium hydroxide (INCI: Chromium Hydroxide Green), chromium oxide (INCI: Chromium Oxide Greens), and aluminum / cobalt oxide (INCI: Cobalt Aluminum). The following can be used as pigments: cobalt titanate (INCI: Cobalt Titanium Oxide), sintered titanium / titanium oxide (INCI: Titanium / Titanium Dioxide), lithium / cobalt titanate (INCI: Lithium Cobalt Titanate), cobalt titanate (INCI: Cobalt Titanium Oxide), sintered iron oxide / titanium oxide, and other heterometallic doped composites, as well as titanium nitride (INCI: Titanium Nitride), ferrous hydroxide (INCI: Iron Hydroxide), γ-iron oxide, and other inorganic brown pigments, as well as inorganic yellow pigments such as loess, products of laked tar pigments, and products of laked natural pigments.

[0107] Furthermore, as for the shape of the pigment, all shapes are acceptable, including spherical, roughly spherical, rod-shaped, spindle-shaped, petal-shaped, strip-shaped, and irregular shapes. As long as it can impart color to cosmetics, there are no particular restrictions on its geometric form.

[0108] Inorganic powders

[0109] As inorganic powders, examples include zirconium oxide (INCI: Zirconium Dioxide), zinc oxide (INCI: Zinc Oxide), cerium oxide (INCI: Cerium Oxide), magnesium oxide (INCI: Magnesium Oxide), barium sulfate (INCI: Barium Sulfate), calcium sulfate (INCI: Calcium Sulfate), magnesium sulfate (INCI: Magnesium Sulfate), calcium carbonate (INCI: Calcium Carbonate), magnesium carbonate (INCI: Magnesium Carbonate), talc (INCI), mica (INCI), kaolin (INCI), synthetic fluorophlogopite (INCI: Synthetic Fluorphlogopite), synthetic phlogopite iron (INCI: Synthetic Fluorphlogopite), biotite (INCI: Biotite), and potassium silicate (INCI: Potassium... Silicate), silicon dioxide (INCI), aluminum silicate (INCI: Aluminum Silicate), magnesium silicate (INCI: Magnesium Silicate), silicic acid (aluminum / magnesium) (INCI: Magnesium Aluminum Silicate), calcium silicate (INCI: Calcium Silicate), silicic acid (aluminum / calcium / sodium) (INCI: Aluminum Calcium Sodium Silicate), silicic acid (lithium / magnesium / sodium) (INCI: Lithium Magnesium Sodium Silicate), silicic acid (sodium / magnesium) (INCI: Sodium Magnesium Silicate), borosilicate (calcium / aluminum) (INCI: Calcium Aluminum Borosilicate), borosilicate (calcium / sodium) (INCI: Calcium Sodium) Borosilicate, hydroxyapatite (INCI), bentonite (INCI), montmorillonite (INCI), lithium montmorillonite (INCI), zeolite (INCI), alumina (INCI), aluminum hydroxide (INCI: Aluminum Hydroxide), boron nitride (INCI: BoronMicroparticles composed of Nitride, glass (INCI: Glass), etc.

[0110] In addition, as inorganic coloring pearlescent pigments, examples include mica (INCI) coated with titanium dioxide (INCI), synthetic fluorophlogopite (INCI) coated with titanium dioxide (INCI), bismuth oxychloride (INCI), bismuth oxychloride (INCI) coated with titanium dioxide (INCI), talc (INCI) coated with titanium dioxide (INCI), fish scale foil (INCI), and colored mica coated with titanium dioxide (INCI). These pearlescent pigments can be untreated or have surface treatments commonly used in cosmetics, and there are no particular limitations.

[0111] Metal powder

[0112] As metal powders, examples include metal particles composed of aluminum (INCI: Aluminum, Aluminum Powder), copper (INCI: Copper Powder), silver (INCI: Silver Powder), and gold (INCI: Gold).

[0113] Organic powder

[0114] Organic powders include those composed of organosilicon, polyamide, polyacrylate, polyester, polyethylene (INCI), polypropylene (INCI), polystyrene (INCI), styrene-acrylic copolymer, divinylbenzene-styrene copolymer, polyurethane, vinyl resin, urea-formaldehyde resin, melamine resin, benzoguanamine, polymethylbenzoguanamine, tetrafluoroethylene, polymethyl methacrylate, cellulose (INCI), silk (INCI), nylon (name indicated), phenolic resin, epoxy resin, polycarbonate, etc.

[0115] Specifically, examples of organosilicon include organosilicon resin particles; polymethylsilsesquioxane (INCI), silicone rubber powder, organosilicon resin-coated silicone rubber powder; (vinyl dimethyl polysiloxane / methyl polysiloxane silsesquioxane) crosspolymer (represented by name (INCI: vinyl dimethicone / methicone silsesquioxane crosspolymer)), (diphenyl dimethyl polysiloxane / vinyl diphenyl dimethyl polysiloxane / silsesquioxane) crosspolymer (represented by name (INCI: diphenyl dimethicone / vinyl diphenyl dimethicone / silsesquioxane crosspolymer)), polysiloxane-1 crosspolymer (INCI), polysiloxane-22 (INCI), etc.

[0116] Examples of commercially available powders made of organosilicon include those manufactured by Shin-Etsu Chemical Co., Ltd.: 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, KM-440, etc.

[0117] In addition, metal soaps can also be listed as specific examples. Powders composed of zinc stearate (INCI: Zinc Stearate), aluminum stearate (INCI: Aluminum Stearate), calcium stearate (INCI: Calcium Stearate), magnesium stearate (INCI: Magnesium Stearate), zinc myristate (INCI: Zinc Myristate), magnesium myristate (INCI: Magnesium Myristate), sodium hexadecyl phosphate (zinc / sodium) (INCI: Sodium Zinc Cetyl Phosphate), and potassium hexadecyl phosphate (INCI: Potassium Cetyl Phosphate) can also be listed.

[0118] In addition, organic pigments can also be listed as examples, such as Red 3, Red 104 (1) (named (INCI: Red 28, Red 28 Lake)), Red 106, Red 201 (named (INCI: Red 6)), Red 202 (named (INCI: Red 7)), Red 204, Red 205, Red 220 (named (INCI: Red 34)), Red 226 (named (INCI: Red 30)), Red 227 (named (INCI: Red 33, RED 33 Lake)), Red 228 (named (INCI: Red 36)), Red 230 (1) (named (INCI: Red 22, Red 22 Lake)), Red 230 (2) (named), Red 401 (named), Red 505 (named), and Yellow 4 (named (INCI: Yellow)). 5), Yellow 5 (representing name (INCI: Yellow 6, Yellow 6 Lake)), Yellow 202 (1) (representing name (INCI: Yellow 8)), Yellow 203 (representing name (INCI: Yellow 10, Yellow 10 Lake)), Yellow 204 (representing name (INCI: Yellow 11)), Yellow 401, Blue 1 (representing name (INCI: Blue 1, Blue 1 Lake)), Blue 2, Blue 201, Blue 205 (representing name (INCI: Blue 4)), Blue 404 (representing name), Green 3 (representing name (INCI: Green 3, Green 3 Lake)), Green 201 (representing name (INCI: Green 5)), Green 202 (representing name (INCI: Green 6)), Green 204 (representing name (INCI: Green 8)), Green 205 (representing name), Orange 201 (representing name (INCI: Orange 5), Orange 203 (INCI: Pigment Orange 5), Orange 204 (INCI: Pigment Orange 5), Orange 205 (INCI: Orange 4, Orange 4 Lake), Orange 206 (INCI: Orange 10), Orange 207 (INCI: Orange 11), etc., tar pigments, carmine (INCI), shellac red acid (INCI: Laccaic Acid), safflower red (INCI: Carthamus Tinctorius (Safflower) Flower Extract), ginkgo biloba root extract (INCI: Lithospermum Officinale Root)Natural pigments such as Gardenia Yellow (indicating name) and Gardenia Blue (indicating name (INCI: Hydrolyzed Gardenia Florida Extract)).

[0119] Inorganic-organic composite powder

[0120] As an inorganic-organic composite powder, examples include composite powders in which the surface of inorganic powder is coated with organic powder using a known and commonly used method.

[0121] Furthermore, the powders mentioned above can also be powders whose particle surfaces have been treated. In addition, from the viewpoint of the water resistance of cosmetics, the surface treatment agent is preferably capable of imparting hydrophobicity. There are no particular limitations on the treatment agent that imparts hydrophobicity, and examples include silicone treatment agents, waxes, paraffins, perfluoroalkyl and phosphate organic fluorine compounds, surfactants, amino acids such as N-acylglutamic acid, aluminum stearate, magnesium myristate and other metal soaps.

[0122] Preferred are organosilicon treatment agents, such as silanes or silanizing agents like triethoxyoctylsilane (INCI), dimethyl polysiloxane (INCI), methyl polysiloxane (INCI), hydrogen dimethyl polysiloxane (INCI), triethoxysilyl ethyl polydimethylsiloxyethyl dimethyl polysiloxane (INCI), triethoxysilyl ethyl polydimethylsiloxyethylhexyl dimethyl polysiloxane (INCI), and copolymers of (acrylate / tridecyl acrylate / triethoxysilylpropyl methacrylate / dimethyl polysiloxane) (INCI: Acrylates / Tridecyl Acrylate / Triethoxysilylpropyl Methacrylate / Dimethicone MethacrylateCopolymer), etc.

[0123] Specific examples of these organosilicon treatment agents include those manufactured by Shin-Etsu Chemical Co., Ltd.: AES-3083, KF-99P, KF-9901, KF-9908, KF-9909, KP-574, KP-541, etc.

[0124] Furthermore, the aforementioned surface hydrophobic treatment agents can be used alone or in combination of two or more. Specific examples of surface-treated coloring pigments include those manufactured by Shin-Etsu Chemical Co., Ltd.: the KTP-09 series, particularly KTP-09W, KTP-09R, KTP-09Y, and KTP-09B.

[0125] • Ultraviolet absorbing and scattering agents

[0126] In addition to the dispersion of the present invention, a dispersion in which particles that absorb and scatter ultraviolet light, which are component (a), are dispersed in an oil in advance can also be used.

[0127] As the oiling agent, liquids such as silicone oil, hydrocarbon oil, ester oil, natural animal and vegetable oil, semi-synthetic oil, and fluorinated oil can be used as optional components in (1) the oiling agent.

[0128] Specific examples of dispersions that pre-dispersion particles that absorb and scatter ultraviolet light in an oil can be listed as those manufactured by Shin-Etsu Chemical Co., Ltd.: the SPD series (trade names), especially SPD-T5, SPD-T5L, SPD-Z5, SPD-T6, SPD-Z6, SPD-T7, SPD-Z7L, etc.

[0129] (5) A composition consisting of a cross-linked organopolysiloxane and an oil that is liquid at room temperature.

[0130] In a composition consisting of a cross-linked organopolysiloxane and an oil that is liquid at room temperature, it is preferable that the cross-linked organopolysiloxane swells relative to the liquid oil, which contains more than its own weight in the liquid oil. As the liquid oil, liquid silicone oil, hydrocarbon oil, ester oil, natural animal and vegetable oil, semi-synthetic oil, fluorinated oil, etc., which are optional components of the oil (1), can be used. Examples include cyclopentasiloxane (INCI), dimethyl polysiloxane (INCI), mineral oil (INCI), isododecane (INCI), isohexadecane (INCI), triglyceride (ethylhexanoate) (INCI), isotridecyl isononanoate (INCI: Isotridecyl Isononanoate), squalane (INCI), and coco-caprylate (INCI: Coco-Caprylate·Caprate) etc.

[0131] (5) The cross-linked silicone surfactants that are different from those in (3) above are compounds that do not have polyether or polyglycerol structures in their molecular structure. Specific examples include (dimethyl polysiloxane / vinyl dimethyl polysiloxane) cross-linked polymer (INCI), (dimethyl polysiloxane / phenyl vinyl dimethyl polysiloxane) cross-linked polymer (INCI: Dimethicone / Phenyl Vinyl dimethicone crosspolymer), (vinyl dimethyl polysiloxane / lauryl dimethyl polysiloxane) cross-linked polymer (INCI), (lauryl polydimethylsiloxyethyl dimethyl polysiloxane / bisvinyl dimethyl polysiloxane) cross-linked polymer (INCI), etc.

[0132] Examples of commercially available compositions consisting of cross-linked organopolysiloxanes and oils that are liquid at room temperature include those manufactured by Shin-Etsu Chemical Co., Ltd.: 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, KM-116, etc.

[0133] (6) Film-forming agent

[0134] The film-forming agent is mainly formulated to further maintain the lasting effect of the cosmetic. While not particularly limited, from the viewpoint of imparting water repellency, a silicone-based composition is preferred. Specifically, trimethylsiloxysilicic acid, acrylic-based silicone film-forming agents, silicone-modified norbornene, silicone-modified amylopectin, silicone-modified polyvinyl alcohol, etc., can be used.

[0135] Examples of film-forming agents for organosilicon compositions include trimethylsiloxysilicic acid (INCI: Trimethylsiloxysilicate), (acrylate / dimethylpolysiloxane) copolymer (INCI), (norbornene / tri(trimethylsiloxy)silylnorbornene) copolymer (INCI), and tri(trimethylsiloxy)silylpropylcarbamoylcarbamoyl amylopectin (INCI: TrimethylsiloxysilylcarbamoylPullulan), etc.

[0136] The film-forming agent can be dissolved in a liquid oil at room temperature and then mixed into the cosmetic. As the liquid oil, liquid silicone oil, hydrocarbon oil, ester oil, natural animal and vegetable oil, semi-synthetic oil, fluorinated oil, etc., can be used as optional components of the oil. Specific examples of commercially available silicone film-forming agents include those manufactured by Shin-Etsu Chemical Co., Ltd.: KF-7312J, KP-545, KP-549, KP-543, NBN-30-ID, TSPL-30-ID, TSPL-30-D5, etc.

[0137] (7) Other additives

[0138] Other additives include oil-soluble gelling agents, preservatives / bactericides, antiperspirants, fragrances, salts, antioxidants, pH adjusters, chelating agents, cooling agents, anti-inflammatory agents, skin care ingredients (whitening agents, cell activators, skin roughness improvers, blood circulation promoters, skin astringents, anti-seborrheic agents, etc.), vitamins, amino acids, nucleic acids, hormones, inclusion complexes, etc.

[0139] Oil-soluble gelling agents

[0140] As oil-soluble gelling agents, examples include metal soaps such as aluminum stearate, magnesium stearate, and zinc myristate; amino acid derivatives such as lauroyl glutamate and α,γ-di-n-butylamine; dextrin palmitate, dextrin isostearate, dextrin myristate, stearoyl inulin, and dextrin (palmitic acid / ethylhexanoic acid) esters. Dextrin fatty acid esters such as 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; organically modified clay minerals such as distearate dimethylammonium lithium montmorillonite (INCI), silachlorium lithium montmorillonite (INCI), and lithium montmorillonite; silachlorium bentonite (INCI), etc.

[0141] Preservatives / bactericides

[0142] Examples of preservatives / bactericides include alkyl p-hydroxybenzoate, benzoic acid, sodium benzoate, sorbic acid, potassium sorbate, phenoxyethanol, imidazolidinyl urea, salicylic acid, isopropyl methylphenol, carbolic acid, p-chloro-m-cresol, hexachlorophenol, benzalkonium chloride, chlorhexidine chloride, triclocarban, iodopropynyl butylcarbamate, polylysine, bisabolol, ethylhexylglycerin, caprylic acid glyceride, capryloyl hydroxamic acid, dimethylolpropionate, polyaminopropyl biguanide, photosensitizers, silver, and plant extracts. One preservative may be used alone, or two or more may be used in combination. In particular, polylysine, bisabolol, ethylhexylglycerin, glyceryl caprylate, capryloyl hydroxamic acid, dimethylolpropionate, polyaminopropyl biguanide, ethylhexylglycerin, and phenoxyethanol are preferred as they are easy to mix with cosmetics and can be expected to have a preservative effect. Ethylhexylglycerin, phenoxyethanol, and glyceryl caprylate are especially preferred in terms of compatibility with the dispersions of the present invention. By mixing preservatives, it is expected that bacterial contamination can be inhibited and the shelf life of the dispersion can be improved.

[0143] Antiperspirant

[0144] Examples of antiperspirants include hydroxyaluminum halides such as aluminum chlorohydroxyaluminate, aluminum halides such as aluminum chloride, allantoin aluminum salts, tannic acid, persimmon tannin, aluminum sulfate (aluminum / potassium), zinc oxide, zinc p-phenolsulfonate, roasted alum, aluminum tetrachloride (aluminum / zirconium) hydrate, and trichlorohydroxyglycine (aluminum / zirconium). In particular, as ingredients exhibiting high efficacy, aluminum hydroxyhalides, aluminum halides, and their complexes or mixtures with zirconium oxyhalide and zirconium oxyhydroxyhalide (e.g., aluminum tetrachloride (aluminum / zirconium) hydrate, trichlorohydroxyglycine (aluminum / zirconium)) are preferred.

[0145] ·spices

[0146] As fragrances, there are natural fragrances and synthetic fragrances. Natural fragrances include plant-based fragrances extracted from flowers, leaves, wood, fruit 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 terpenoids and aromatic aldehydes; ketones such as alicyclic ketones; esters such as terpene esters; lactones; phenols; oxides; nitrogen-containing compounds; acetals, etc.

[0147] Salts

[0148] Examples of salts include inorganic salts, organic acid salts, amine salts, and amino acid salts. Inorganic salts include, for example, sodium, potassium, magnesium, calcium, aluminum, zirconium, and zinc salts of inorganic acids such as hydrochloric acid, sulfuric acid, carbonic acid, and nitric acid. Organic acid salts include, for example, salts of organic acids such as acetic acid, dehydroacetic acid, citric acid, malic acid, succinic acid, ascorbic acid, and stearic acid. Amino acid and amino acid salts include, for example, salts of amines such as triethanolamine and salts of amino acids such as glutamic acid. In addition, salts of hyaluronic acid, chondroitin sulfate, aluminum zirconium glycine complexes, and acid-base neutralizing salts used in cosmetic formulations can also be used. Sodium chloride is particularly preferred in terms of solubility, feel, and foam suppression. In cases of large-volume mixing, it can sometimes hinder the swelling of water-soluble polymers.

[0149] Antioxidants

[0150] There are no particular limitations on what constitutes an antioxidant. Examples include carotenoids, ascorbic acid and its salts, ascorbic acid stearate, tocopherol, tocopherol acetate, vitamin E, p-tert-butylphenol, butylated hydroxyanisole, butylated hydroxytoluene, phytic acid, ferulic acid, thiotaurine, taurine, sulfites, isoascorbic acid and its salts, chlorogenic acid, epicatechin, epigallocatechin gallate, epigallocatechin gallate, apigenin, kaempferol, myricetin, quercetin, etc. Only one antioxidant can be used, or two or more can be used in combination.

[0151] pH adjuster

[0152] Examples of pH adjusters include lactic acid, citric acid, glycolic acid, succinic acid, tartaric acid, dl-malic acid, potassium carbonate, sodium bicarbonate, and ammonium bicarbonate.

[0153] · Chelating agents

[0154] Examples of chelating agents include alanine, sodium oxalate tetraacetate, sodium polyphosphate, sodium metaphosphate, and phosphoric acid.

[0155] Cooling agents

[0156] Examples of cooling agents include L-menthol, camphor, and menthol lactate.

[0157] Anti-inflammatory agents

[0158] Anti-inflammatory agents include allantoin, glycyrrhizic acid and its salts, glycyrrhetinic acid and glycyrrhetinic acid stearate, tranexamic acid, azulene, etc.

[0159] Skin care ingredients

[0160] As skin-beautifying ingredients, examples include placental extract, arbutin, glutathione, saxifrage extract and other whitening agents; royal jelly, photosensitizers, cholesterol derivatives, calf blood extract and other cell activators; skin roughness improvers; vanillamide nonanoate, benzyl nicotinate, β-butoxyethyl nicotinate, capsaicin, gingerone, cantharides tincture, ichthammol, caffeine, tannic acid, α-thodolol, nicotinic acid tocopherol, inositol hexanicotinate, cyclomansyl ester, cinnarizine, tolazoline, acetylcholine, verapamil, senna extract, γ-oryzanol and other blood circulation promoters; zinc oxide, tannic acid and other skin astringents; sulfur, thiophenol and other anti-seborrheic agents, etc.

[0161] Vitamins

[0162] Examples of vitamins include vitamin A derivatives such as vitamin A oil, retinol, retinol acetate, and retinol palmitate; vitamin B2 derivatives such as riboflavin, riboflavin butyrate, and flavin adenine nucleotide; vitamin B6 derivatives such as pyridoxine hydrochloride, pyridoxine dioctanoate, and pyridoxine trimalpalmitate; vitamin B12 and its derivatives, vitamin B15 and its derivatives; and L-ascorbic acid, L-ascorbic acid dipalmitate, and L-ascorbic acid-2-thiocyanate. Vitamins include sodium ascorbate, dipotassium L-ascorbic acid phosphate, etc.; vitamins include ergocalciferol, cholecalciferol, etc.; vitamins include α-tocopherol, β-tocopherol, γ-tocopherol, dl-α-tocopherol acetate, dl-α-tocopherol niacin, dl-α-tocopherol succinate, etc.; niacin derivatives such as niacin, benzyl nicotinate, nicotinamide, etc.; pantothenic acid derivatives such as vitamin H, vitamin P, calcium pantothenate, D-panthenol, panthenol ethyl ether, acetylpanthenol ethyl ether, etc.; and biotin, etc.

[0163] Amino acids

[0164] As amino acids, examples include glycine, valine, leucine, isoleucine, serine, threonine, phenylalanine, arginine, lysine, aspartic acid, glutamic acid, cystine, cysteine, methionine, and tryptophan.

[0165] Nucleic acid

[0166] Nucleic acids include deoxyribonucleic acid (DNA) and others.

[0167] ·hormone

[0168] Examples of hormones include estradiol and vinylestradiol.

[0169] inclusion complex

[0170] Examples of inclusion complexes include cyclodextrins.

[0171] Example

[0172] The following preparation examples, embodiments, and comparative examples illustrate the present invention in detail, but the invention is not limited to the embodiments described below. It should be noted that in the examples below, unless otherwise specified, "%" in composition represents mass %, and "ratio" represents mass ratio. It should also be noted that the amount stated by the product name is the amount of the compounded product. The order of combination of the siloxane units shown in parentheses in the formulas is not limited to the order described below.

[0173] (Preparation Example 1)

[0174] In a reactor, methylhydropolysiloxane (H-1) and polyglycerol monoallyl ether (G-1) were charged at a molar ratio of 1:4, followed by the addition of isopropanol and a platinum catalyst. The reaction was carried out at 80°C, and the isopropanol was removed under reduced pressure and heating to obtain polyglycerol-modified organosilicon (A-1). The hydrophilicity-lipophilicity balance (HLB) value of (A-1) as defined by "(total molecular weight of hydrophilic group portion / total molecular weight) × 20" is 8.

[0175] (H-1)

[0176] [Chemistry 1]

[0177]

[0178] (G-1)

[0179] [Chemistry 2]

[0180]

[0181] (A-1)

[0182] [Chemistry 3]

[0183]

[0184] (Preparation Example 2)

[0185] Methylhydropolysiloxane (H-2) and polyglycerol monoallyl ether (G-2) were charged into a reactor at a 1:1 molar ratio as shown in Table 1 below. Isopropanol and a platinum catalyst were then added, and the reaction was carried out at 80°C. The isopropanol was then removed under reduced pressure and heating to obtain polyglycerol-modified organosilicon (A-2). The hydrophilicity-lipophilicity balance (HLB) value of (A-2) as defined by "(total molecular weight of hydrophilic group portion / total molecular weight) × 20" is 12.

[0186] (H-2)

[0187] [Chemistry 4]

[0188]

[0189] (G-2)

[0190] [Chemistry 5]

[0191]

[0192] (A-2)

[0193] [Chemistry 6]

[0194]

[0195] (Preparation Example 3)

[0196] Methylhydropolysiloxane (H-3) and polyglycerol monoallyl ether (G-3) were charged into a reactor at a molar ratio of 1:2, as shown in Table 1 below. Isopropanol and a platinum catalyst were then added, and the reaction was carried out at 80°C. The isopropanol was then removed under reduced pressure and heating to obtain polyglycerol-modified organosilicon (A-3). The hydrophilicity-lipophilicity balance (HLB) value of (A-3) as defined by "(total molecular weight of hydrophilic group portion / total molecular weight) × 20" is 10.

[0197] (H-3)

[0198] [Chemistry 7]

[0199]

[0200] (G-3)

[0201] [Chemistry 8]

[0202]

[0203] (A-3)

[0204] [Chemistry 9]

[0205]

[0206] (Preparation Example 4)

[0207] Methylhydropolysiloxane (H-4) and polyglycerol diallyl ether (G-4) were charged into a reactor at a molar ratio of 2:1, as shown in Table 1 below. Isopropanol and a platinum catalyst were then added, and the reaction was carried out at 80°C. The isopropanol was then removed under reduced pressure and heating to obtain polyglycerol-modified organosilicon (A-4). The hydrophilicity-lipophilicity balance (HLB) value of (A-4) as defined by "(total molecular weight of hydrophilic group portion / total molecular weight) × 20" is 10.

[0208] (H-4)

[0209] [Chemistry 10]

[0210]

[0211] (G-4)

[0212] [Chemistry 11]

[0213]

[0214] (A-4)

[0215] [Chemistry 12]

[0216]

[0217] (Comparative Preparation Example 1)

[0218] Methylhydropolysiloxane (H-5), polyglycerol monoallyl ether (G-5), and polyoxyalkylene monoallyl ether (E-1) were charged into a reactor at a molar ratio of 1:1:2.7, as shown in Table 1 below, and a platinum catalyst was added. The reaction was carried out at 80°C. Isopropanol was then removed under reduced pressure and heating to obtain the organopolysiloxane (A-5) of Comparative Preparation Example 1, which has polyglycerol and polyoxyalkylene groups. The hydrophilicity-lipophilicity balance (HLB) value of (A-5) as defined by "(total molecular weight of hydrophilic group portion / total molecular weight) × 20" is 10. It should be noted that 20% by mass of the hydrophilic groups in the organopolysiloxane (A-5) of Comparative Preparation Example 1, which has polyglycerol and polyoxyalkylene groups, is polyglycerol.

[0219] (H-5)

[0220] [Chemistry 13]

[0221]

[0222] (G-5)

[0223] [Chemistry 14]

[0224]

[0225] (E-1)

[0226] [Chemistry 15]

[0227]

[0228] (A-5)

[0229] [Chemistry 16]

[0230]

[0231] [Can the water-based dispersant dissolve?]

[0232] For the following components, after mixing in water and BG at 20% and then standing at 25°C for 1 hour, a state of being without boundaries and transparent to translucent is recorded as "dissolved," and a state of being turbid and separated into two layers is recorded as "undissolved." The term "transparent to translucent state" refers to a total light transmittance of 50% or more, measured according to the method described in JIS K7361-1:1997, when the mixture is filled into a 1 cm thick pool.

[0233] [Table 1]

[0234]

[0235] [Example]

[0236] Based on the compositions shown in Tables 2-4 below, slurries were prepared using a bead mill to obtain aqueous dispersions. The dispersibility of the obtained aqueous dispersions was evaluated using the following evaluation criteria. The results are recorded in the tables.

[0237] [Can aqueous dispersions be prepared?]

[0238] A: It can prepare dispersions (temporarily a precipitation is observed, but with continued stirring, it disperses uniformly).

[0239] D: Cannot prepare dispersions

[0240] Set "A" as qualified.

[0241] [Long-term stability evaluation]

[0242] 75g of the aqueous dispersion was placed in a 50mL container and stored in a 25℃ constant temperature bath for one month. The long-term stability was evaluated using the following criteria. The results were determined according to the following criteria.

[0243] [Judgment Criteria]

[0244] The viscosity change rate (%) = [{(initial viscosity) - (viscosity after 1 month)} / (initial viscosity)] × 100, expressed by the following judgment criteria.

[0245] A: The viscosity change rate after one month is less than 20%.

[0246] B: The viscosity change rate after one month is more than 20% but less than 30%.

[0247] C: The viscosity change rate after 1 month is over 30%.

[0248] D: There are floating objects in the upper layer.

[0249] Set "C" and above as qualified.

[0250] [Water Resistance Evaluation]

[0251] The water resistance of the aqueous dispersion coating was evaluated using the following criteria. The results were determined according to the following standards.

[0252] [Judgment Criteria]

[0253] A: It won't drip even after being splashed with running water for more than 1 minute.

[0254] B: The water will not drip even after being splashed for more than 30 seconds but less than 1 minute.

[0255] C: The water splashes for more than 10 seconds but less than 30 seconds before falling.

[0256] D: The water will fall within 10 seconds of being splashed.

[0257] Set "C" and above as qualified.

[0258] [User Experience Review]

[0259] A panel of 10 evaluators assessed the user experience (non-stickiness) during application based on the following evaluation criteria. The results were based on the average of the 10 evaluators and were judged according to the following criteria.

[0260] [Evaluation Criteria]

[0261] 5 points: Very good

[0262] 4 points: Good

[0263] 3 points: Average

[0264] 2 points: Slightly poor

[0265] 1 point: Poor

[0266] [Judgment Criteria]

[0267] A: Average score above 4.5

[0268] B: Average score of 3.5 or higher but less than 4.5

[0269] C: Average score of 2.5 or higher but less than 3.5

[0270] D: The average score is less than 2.5 points.

[0271] Set "C" and above as qualified.

[0272] [Table 2]

[0273]

[0274] [Table 3]

[0275]

[0276] [Table 4]

[0277]

[0278] The notes for Tables 2-4 are as follows.

[0279] (Note 1) Titanium dioxide particles coated with hydrated silica (INCI: Hydrated Silica) and then treated with hydrogen dimethicone (INCI: Hydrogen Dimethicone)

[0280] The number-average first-order particle size of 15 nm was obtained using image analysis of transmission electron microscopy images (based on transmission electron microscopy images, determined by image analysis method, average diameter of 200 particles).

[0281] (Note 2) Particles of titanium dioxide treated with stearic acid (INCI: Stearic Acid) (INCI: Titanium Dioxide)

[0282] (Note 3) Titanium oxide particles coated with hydrated silica (INCI: Hydrated Silica) (INCI: Titanium Dioxide)

[0283] As shown in Tables 2 and 3, all embodiments of the present invention yielded aqueous dispersions (slurries) that dispersed well in aqueous media. On the other hand, Comparative Example 1, which did not contain component (a), failed to prepare a dispersion. While the dispersion of Comparative Example 2 could be prepared, its long-term stability, water resistance, and user experience were poor. Comparative Example 4, which did not contain component (b), Comparative Example 3, which contained more than 70% of component (a), and Comparative Examples 5-7 and 9-11, which did not contain component (c), could not prepare dispersions. While the dispersion of Comparative Example 8 could be prepared, its water resistance and user experience were poor. While the dispersion of Comparative Example 12 could be prepared, its water resistance was poor.

[0284] The number-average primary particle size of the microparticle titanium oxide used in the following examples ranges from 8 to 200 nm.

[0285] [Example 15, Comparative Example 13]

[0286] O / W creams were prepared using the formulations shown in Table 5 below.

[0287] [Manufacturing Method]

[0288] [Example 15]

[0289] A: Mix components 5 to 12.

[0290] B: Add component 4 to the composition obtained in A and emulsify.

[0291] C: Add component 1 to the emulsion obtained in B, mix, and you will get an O / W cream.

[0292] [Comparative Example 13]

[0293] A: Mix components 5 to 12.

[0294] B: Mix components 2 to 4 using a three-roller mixer.

[0295] C: The composition obtained in B was added to the composition obtained in A, and emulsified to obtain an O / W cream.

[0296] [User experience evaluation, water resistance evaluation]

[0297] Similar to the evaluation of the water-based dispersions mentioned above, the user experience (non-stickiness) and water resistance of the cosmetics during application were also evaluated.

[0298] [Transparency evaluation, user experience evaluation]

[0299] Based on the following evaluation criteria, a panel of 10 experts evaluated the transparency and usability (non-stickiness) of the coating. The results were based on the average of the 10 participants and were judged according to the following criteria.

[0300] [Evaluation Criteria]

[0301] 5 points: Very good

[0302] 4 points: Good

[0303] 3 points: Average

[0304] 2 points: Slightly poor

[0305] 1 point: Poor

[0306] [Judgment Criteria]

[0307] A: Average score above 4.5

[0308] B: Average score of 3.5 or higher but less than 4.5

[0309] C: Average score of 2.5 or higher but less than 3.5

[0310] D: The average score is less than 2.5 points.

[0311] Set "C" and above as qualified.

[0312] [Table 5]

[0313]

[0314] (Note 1) Titanium dioxide particles coated with hydrated silica (INCI: Hydrated Silica) and then treated with hydrogen dimethicone (INCI: Hydrogen Dimethicone)

[0315] The number-average first-order particle size of 15 nm was obtained using image analysis of transmission electron microscopy images (based on transmission electron microscopy images, determined by image analysis method, average diameter of 200 particles).

[0316] As shown in Table 5, the cosmetic of Example 15, which used the dispersion of the present invention, exhibited high transparency during application, provided a good non-sticky feel, and confirmed water resistance. On the other hand, all the comparative examples of Comparative Example 13, which contained components (a) to (d) that are essential components of the present invention but were not formulated as an aqueous dispersion of the present invention, received poor evaluations.

[0317] [Example 16, Comparative Example 14]

[0318] W / O cream was prepared using the formulations shown in Table 6 below.

[0319] [Manufacturing Method]

[0320] [Example 16]

[0321] A: Mix components 4 to 8.

[0322] B: Mix components 9 to 13.

[0323] C: Add component 1 to the composition obtained in B and mix.

[0324] D: The composition obtained in C was added to the composition obtained in A, and emulsified to obtain W / O cream.

[0325] [Comparative Example 14]

[0326] A: Mix components 5 to 8.

[0327] B: Mix components 9 to 13.

[0328] C: Mix components 2-4 using a three-roller mixer and then mix them with the composition obtained in A.

[0329] D: The composition obtained in B is added to the composition obtained in C, and emulsified to obtain W / O cream.

[0330] [Table 6]

[0331]

[0332] (Note 1) Titanium dioxide particles coated with hydrated silica (INCI: Hydrated Silica) and then treated with hydrogen dimethicone (INCI: Hydrogen Dimethicone)

[0333] The number-average first-order particle size of 15 nm was obtained using image analysis of transmission electron microscopy images (based on transmission electron microscopy images, determined by image analysis method, average diameter of 200 particles).

[0334] (Note 2) Produced by Shin-Etsu Chemical Co., Ltd.: A mixture of approximately 70-80% by weight of dimethylpolysiloxane (6cs) + approximately 20-30% by weight of (dimethylpolysiloxane / polyglycerol-3) crosslinked polymer.

[0335] (Note 3) Shin-Etsu Chemical Co., Ltd.: A mixture of approximately 80-90% by weight of dimethyl polysiloxane (6cs) + approximately 10-20% by weight of crosslinked polymer of (dimethyl polysiloxane / vinyl dimethyl polysiloxane).

[0336] The cosmetic product of Example 16, which used the dispersion of the present invention, exhibited high transparency during application, provided a good non-sticky feel, and demonstrated good water resistance. On the other hand, all comparative examples of Comparative Example 14, which contained components (a) to (d) that are essential components of the present invention but were not formulated as an aqueous dispersion of the present invention, received poor evaluations.

[0337] [Example 17] Water-in-oil type sunscreen

[0338]

[0339] (Note 1) Produced by Shin-Etsu Chemical Co., Ltd.: A mixture of 90-96% by weight of cyclopentasiloxane + 4-10% by weight of (dimethylpolysiloxane / vinyldimethylpolysiloxane) crosslinked polymer.

[0340] (Note 2) Produced by Shin-Etsu Chemical Co., Ltd.: A mixture of 70-80% by weight of dimethyl polysiloxane + 20-30% by weight of crosslinked polymer of (dimethyl polysiloxane / vinyl dimethyl polysiloxane).

[0341] (Note 3) Shin-Etsu Chemical Co., Ltd.: A mixture of 60-70% by weight of (octanoic acid / decanoic acid) coconut alkyl ester + 30-40% by weight of (dimethylpolysiloxane / vinyldimethylpolysiloxane) crosslinking polymer.

[0342] (Note 4) Produced by Shin-Etsu Chemical Co., Ltd.: Polyglycerol-3-disiloxane dimethylpolysiloxane

[0343] (Note 5) Produced by Shin-Etsu Chemical Co., Ltd.: Polyglycerol-3-dimethylsiloxyethyl dimethylpolysiloxane

[0344] (Note 6) Clariant Corporation: Aristoflex AVC

[0345] (Note 7) Seppic Corporation: Simulgel 600

[0346] (Note 8) Titanium oxide particles coated with hydrous silica (INCI: Hydrated Silica) and then treated with triethoxysilyl ethyl polydimethylsiloxane ethylhexyl dimethyl polysiloxane (INCI)

[0347] (Note 9) Shin-Etsu Chemical Co., Ltd.: AES-3083 (triethoxyoctylsilane) treatment

[0348] (Manufacturing method)

[0349] A: Mix components 1 to 4 evenly.

[0350] B: Mix components 5 to 11 evenly.

[0351] C: Disperse components 12 and 13 evenly using a bead mill.

[0352] D: Add the product obtained in step A above to the product obtained in step B above for emulsification, add C, and disperse evenly.

[0353] The water-in-oil sunscreen obtained as described above exhibits high stability, high transparency, a non-sticky and pleasant user experience, and excellent water resistance. Ingredients 12 and 13 demonstrate excellent stability and are easy to handle and dispose of.

[0354] [Example 18] Water-in-oil type base cream

[0355]

[0356] (Note 1) Soluble in water, BG

[0357] (Note 2) Shin-Etsu Chemical Co., Ltd. manufactures: (vinyl dimethyl polysiloxane / methyl polysiloxane silsesquioxane) crosslinked polymer

[0358] (Note 3) Shin-Etsu Chemical Co., Ltd.: KF-9909 is a treatment coloring inorganic pigment, W: white; R: red; Y: yellow; B: black.

[0359] (Note 4) Made by SEPPIC Corporation: SIMULGEL EG

[0360] (Manufacturing method)

[0361] A: Disperse components 7-11 evenly using a bead mill.

[0362] B: Mix components 1-6 evenly, and mix A until it is homogeneous.

[0363] C: Heat and dissolve components 12-16, then mix component 17 to make it homogeneous.

[0364] D: Components 18-23 were mixed and then subjected to roller treatment.

[0365] E: Add the product obtained in step D above to the product obtained in step C above, and mix them evenly.

[0366] F: Add the product obtained in the heated E step above to the product obtained in the heated B step above, and emulsify it evenly.

[0367] G: After cooling the product obtained in step F above to room temperature, add components 24 and 25 and mix them evenly.

[0368] H: After degassing the product obtained in step G above, it is filled into a container to obtain an oil-in-water base cream.

[0369] The water-in-oil base cream obtained as described above exhibits high stability, high transparency, a non-sticky and pleasant user experience, and excellent water resistance. The dispersion obtained in step A demonstrates excellent stability and is easy to handle and incorporate.

[0370] [Example 19] Aqueous Gel

[0371]

[0372] (Note 1) Shin-Etsu Chemical Co., Ltd. manufactures: (vinyl dimethyl polysiloxane / methyl polysiloxane silsesquioxane) crosslinked polymer

[0373] (Manufacturing method)

[0374] A: Mix components 1 and 2 evenly.

[0375] B: Mix components 3 to 9 evenly.

[0376] C: Add the product obtained in step A above to the product obtained in step B above, and mix them evenly.

[0377] D: After degassing the product obtained in step C above, it is filled into a container to obtain an aqueous gel.

[0378] The aqueous gel obtained as described above exhibits excellent wettability, high stability, high transparency, a non-sticky and pleasant user experience, and excellent water resistance. Component 1 demonstrates excellent stability and is easy to handle and apply.

[0379] [Example 20] Water-in-oil type sunscreen lotion

[0380]

[0381] (Note 1) Produced by Shin-Etsu Chemical Co., Ltd.: Dimethylpolysiloxane

[0382] (Note 2) Made by SEPPIC Corporation: SIMULGEL EG

[0383] (Note 3) Shin-Etsu Chemical Co., Ltd.: 50% by weight of trimethylsiloxysilicic acid in cyclopentasiloxane solution

[0384] (Note 4) Produced by Shin-Etsu Chemical Co., Ltd.: Diphenylsiloxyphenyltrimethylpolysiloxane

[0385] (Note 5) Produced by Shin-Etsu Chemical Co., Ltd.: A mixture of 70-80% by weight of dimethyl polysiloxane + 20-30% by weight of crosslinked polymer of (dimethyl polysiloxane / vinyl dimethyl polysiloxane).

[0386] (Note 6) Produced by Shin-Etsu Chemical Co., Ltd.: PEG-11 methyl ether dimethyl polysiloxane

[0387] (Manufacturing method)

[0388] A: Disperse components 1 to 7 evenly using a bead mill.

[0389] B: Heat components 8-11 to 85°C, add A, and mix evenly.

[0390] C: Heat components 12-20 to 85°C and mix them evenly.

[0391] D: Add the product obtained in step C above to the product obtained in step B above, emulsify at 85°C, and then slowly cool while stirring to obtain an oil-in-water sunscreen emulsion.

[0392] The water-in-oil sunscreen emulsion obtained as described above exhibits high stability, high transparency, a non-sticky and pleasant user experience, and excellent water resistance. The dispersion obtained in step A demonstrates excellent stability and is easy to handle and incorporate.

[0393] [Example 21] Water-in-oil type substrate

[0394]

[0395] (Note 1) Shin-Etsu Chemical Co., Ltd.: 30% by weight of cyclopentasiloxane solvent of (acrylate / dimethylpolysiloxane) copolymer

[0396] (Note 2) Produced by Shin-Etsu Chemical Co., Ltd.: A mixture of 80-90% by weight of dimethyl polysiloxane + 10-20% by weight of crosslinked polymer of (dimethyl polysiloxane / vinyl dimethyl polysiloxane).

[0397] (Note 3) Produced by Shin-Etsu Chemical Co., Ltd.: Diphenylsiloxyphenyltrimethylpolysiloxane

[0398] (Note 4) Produced by Shin-Etsu Chemical Co., Ltd.: PEG-10 dimethyl polysiloxane

[0399] (Note 5) Made by SEPPIC Corporation: SIMULGEL EG

[0400] (Manufacturing method)

[0401] A: Mix components 1 to 4 evenly.

[0402] B: Disperse components 5 to 8 evenly using a homogeneous mixer.

[0403] C: Mix components 9-18 and B evenly.

[0404] D: The product obtained in step A is added to the product obtained in step C above, and emulsified to obtain an O / W substrate.

[0405] The oil-in-water emulsion substrate obtained as described above exhibits high stability, high transparency, a non-sticky and pleasant user experience, and excellent water resistance. The dispersion obtained in process A demonstrates excellent stability and is easy to handle and incorporate.

[0406] [Example 22] Water-in-oil type foundation liquid

[0407]

[0408] (Note 1) Produced by Shin-Etsu Chemical Co., Ltd.: (acrylate / stearyl acrylate / dimethyl methacrylate polysiloxane) copolymer

[0409] (Note 2) Produced by Shin-Etsu Chemical Co., Ltd.: PEG-9 dimethyl polysiloxane

[0410] (Note 3) Shin-Etsu Chemical Co., Ltd.: Triethoxyoctylsilane treatment

[0411] (Manufacturing method)

[0412] A: Mix components 11-13 with a portion of component 22, add components 14-17, disperse evenly, and heat.

[0413] B: Mix components 1-8 and heat evenly to dissolve.

[0414] C: Mix components 9-10, the remainder of component 22, components 23, and 25, and heat.

[0415] D: Disperse components 18-21 using Disper.

[0416] E: Add the product obtained in step B to the product obtained in step C under stirring, emulsify, add the product obtained in step A, and then add the product obtained in step D and component 24 to obtain an oil-in-water foundation.

[0417] The water-in-oil foundation liquid obtained as described above exhibits high stability, high transparency, a non-sticky and pleasant user experience, and excellent water resistance. The dispersion obtained in step D demonstrates excellent stability and is easy to handle and incorporate.

[0418] [Example 23] Water-in-oil sunscreen lotion

[0419]

[0420] (Note 1) Produced by Shin-Etsu Chemical Co., Ltd.: A mixture of 70-80% by weight of dimethyl polysiloxane + 20-30% by weight of crosslinked polymer of (dimethyl polysiloxane / (PEG-10 / 15)).

[0421] (Note 2) Produced by Shin-Etsu Chemical Co., Ltd.: A mixture of 65-75% by weight of octylmethyl polysiloxane + 25-35% by weight of (dimethyl polysiloxane / polyglycerol-3) crosslinked polymer.

[0422] (Note 3) Shin-Etsu Chemical Co., Ltd.: A mixture of 90-96% by weight of cyclopentasiloxane + 4-10% by weight of (dimethylpolysiloxane / vinyldimethylpolysiloxane) crosslinked polymer.

[0423] (Note 4) Produced by Shin-Etsu Chemical Co., Ltd.: PEG-9 polydimethylsiloxyethyl dimethyl polysiloxane

[0424] (Note 5) Produced by Shin-Etsu Chemical Co., Ltd.: Octylmethyl polysiloxane

[0425] (Note 6) Shin-Etsu Chemical Co., Ltd.: 40% by mass of particulate titanium dioxide cyclopentasiloxane dispersion

[0426] (Note 7) Shin-Etsu Chemical Co., Ltd.: 60% by mass of cyclopentasiloxane dispersion of particulate zinc oxide

[0427] (Note 8) Shin-Etsu Chemical Co., Ltd.: 60% by mass dimethylpolysiloxane dispersion of particulate zinc oxide

[0428] (Manufacturing method)

[0429] A: Mix components 1 to 8 evenly.

[0430] B: Mix components 12 to 17 evenly.

[0431] C: Add the product obtained in step A to the product obtained in step B above under stirring, emulsify, add component 9-11, and obtain an oil-in-water sunscreen emulsion.

[0432] The water-in-oil sunscreen emulsion obtained as described above exhibits high stability, high transparency, a non-sticky and pleasant user experience, and excellent water resistance. Component 14 demonstrates excellent stability and is easy to handle and dispose of.

[0433] [Example 24] Water-in-oil type sunscreen lotion

[0434]

[0435] (Note 1) Shin-Etsu Chemical Co., Ltd.: Dimethyl polysiloxane emulsion

[0436] (Note 2) Produced by Shin-Etsu Chemical Co., Ltd.: Diphenylsiloxyphenyltrimethylpolysiloxane

[0437] (Note 3) Produced by Shin-Etsu Chemical Co., Ltd.: PEG-11 methyl ether dimethyl polysiloxane

[0438] (Note 4) Shin-Etsu Chemical Co., Ltd.: (Dimethylpolysiloxane / Vinyldimethylpolysiloxane) crosslinked polymer emulsion

[0439] (Manufacturing method)

[0440] A: Disperse components 1 to 5 evenly using a high-pressure disperser.

[0441] B: Mix components 6-8 evenly.

[0442] C: Mix components 9-19 and A evenly.

[0443] D: Add the product obtained in step B above to the product obtained in step C above, emulsify, add component 20, and mix evenly.

[0444] E: Add component 21 to the product obtained in step D above and mix evenly.

[0445] The water-in-oil sunscreen emulsion obtained as described above exhibits high stability, high transparency, a non-sticky and pleasant user experience, and excellent water resistance. The dispersion obtained in step A demonstrates excellent stability and is easy to handle and incorporate.

[0446] [Example 25] Water-in-oil type sunscreen lotion

[0447]

[0448] (Note 1) Shin-Etsu Chemical Co., Ltd.: 30% Cyclopentasiloxane solution of tris(trimethylsiloxy)silylpropylcarbamate amylopectin

[0449] (Note 2) Shin-Etsu Chemical Co., Ltd.: A mixture of 80-90% by weight of diphenylsiloxyphenyltrimethylpolysiloxane + 10-20% of crosslinked polymer of (dimethylpolysiloxane / phenylvinyldimethylpolysiloxane).

[0450] (Note 3) Produced by Shin-Etsu Chemical Co., Ltd.: Diphenylsiloxyphenyltrimethylpolysiloxane

[0451] (Note 4) Produced by Shin-Etsu Chemical Co., Ltd.: PEG-10 dimethyl polysiloxane

[0452] (Note 5) SEPPIC Corporation: SEPILIFE NUDE

[0453] (Manufacturing method)

[0454] A: Mix components 1 to 4 evenly.

[0455] B: Disperse components 5-9 evenly using a paint shaker.

[0456] C: Mix components 10-16 evenly.

[0457] D: Add the product obtained in step A to the product obtained in step C above, emulsify, and then mix with the product obtained in step B above to obtain a sunscreen lotion.

[0458] The sunscreen lotion obtained as described above exhibits high stability, high transparency, a non-sticky and pleasant user experience, and excellent water resistance. The dispersion obtained in step B demonstrates excellent stability and is easy to handle and incorporate.

[0459] [Example 26] Water-based sunscreen spray

[0460]

[0461] (Manufacturing method)

[0462] A: Mix components 2, 3, 4, 7, and 8 evenly.

[0463] B: Mix components 1, 5, 6, and 9 evenly.

[0464] C: Add the product obtained in step A above to the product obtained in step B above, and mix them evenly.

[0465] D: The product obtained in step C above is filled into a container to obtain a water-based sunscreen spray.

[0466] The water-based sunscreen spray obtained as described above exhibits excellent wettability, high stability, high transparency, a non-sticky and pleasant user experience, and excellent water resistance. Component 1 demonstrates excellent stability and is easy to handle and apply.

[0467] [Example 27] W / O Foundation Liquid

[0468]

[0469] (Note 1) Produced by Shin-Etsu Chemical Co., Ltd.: A mixture of 70-80% dimethyl polysiloxane + 20-30% (dimethyl polysiloxane / (PEG-10 / 15)) crosslinked polymer.

[0470] (Note 2) Produced by Shin-Etsu Chemical Co., Ltd.: A mixture of 90-96% cyclopentasiloxane + 4-10% (dimethylpolysiloxane / vinyldimethylpolysiloxane) crosslinked polymer.

[0471] (Note 3) Produced by Shin-Etsu Chemical Co., Ltd.: Lauryl PEG-9 polydimethylsiloxyethyl dimethyl polysiloxane

[0472] (Note 4) Produced by Shin-Etsu Chemical Co., Ltd.: Lauryl polyglycerol-3-dimethylsiloxyethyl dimethyl polysiloxane

[0473] (Note 5) Shin-Etsu Chemical Co., Ltd.: Hydrogen dimethyl polysiloxane treatment

[0474] (Manufacturing method)

[0475] A: Mix a portion of component 4 with components 7 to 11 uniformly using a roller mill.

[0476] B: Disperse components 14-17 evenly using a paint shaker.

[0477] C: Mix components 1-6 evenly, add A, and mix thoroughly.

[0478] D: Mix components 18-20 evenly, then add components 21, 12, 13 and B, and mix thoroughly.

[0479] E: Add the product obtained in step D to the product obtained in step C above, emulsify, and obtain W / O foundation liquid.

[0480] The W / O foundation liquid obtained as described above exhibits high stability, high transparency, a non-sticky and pleasant user experience, and excellent water resistance. The dispersion obtained in step B demonstrates excellent stability and is easy to handle and incorporate.

[0481] [Example 28] Water-in-oil type sunscreen

[0482]

[0483] (Note 1) Produced by Shin-Etsu Chemical Co., Ltd.: Dimethylpolysiloxane

[0484] (Note 2) Made by SEPPIC Corporation: SIMULGEL NS

[0485] (Note 3) Shin-Etsu Chemical Co., Ltd.: 50% by weight of methyltrimethylpolysiloxane solution of trimethylsiloxysilicic acid

[0486] (Note 4) Produced by Shin-Etsu Chemical Co., Ltd.: Methyltrimethylpolysiloxane

[0487] (Note 5) Produced by Shin-Etsu Chemical Co., Ltd.: PEG-10 dimethyl polysiloxane

[0488] (Manufacturing method)

[0489] A: Disperse components 1 to 7 evenly using a bead mill.

[0490] B: Heat components 8-12 to 85°C, add A, and mix evenly.

[0491] C: Heat components 13-20 to 85°C and mix them evenly.

[0492] D: Add the product obtained in step C above to the product obtained in step B above, emulsify at 85°C, and then slowly cool while stirring to obtain an oil-in-water sunscreen.

[0493] The water-in-oil sunscreen obtained as described above exhibits high stability, high transparency, a non-sticky and pleasant user experience, and excellent water resistance. The dispersion obtained in step A demonstrates excellent stability and is easy to handle and process.

[0494] [Example 29] Water-in-oil sunscreen

[0495]

[0496] (Note 1) Produced by Shin-Etsu Chemical Co., Ltd.: A mixture of 75-85% diphenylsiloxyphenyltrimethylpolysiloxane + 15-25% (dimethylpolysiloxane / (PEG-10 / 15)) crosslinked polymer.

[0497] (Note 2) Produced by Shin-Etsu Chemical Co., Ltd.: A mixture of 65-75% octylmethyl polysiloxane and 25-35% (dimethyl polysiloxane / polyglycerol-3) cross-linked polymer.

[0498] (Note 3) Shin-Etsu Chemical Co., Ltd.: A mixture of 60-70% (octanoic acid / capric acid) coconut alkyl ester + 30-40% (dimethylpolysiloxane / vinyldimethylpolysiloxane) crosslinking polymer.

[0499] (Note 4) Produced by Shin-Etsu Chemical Co., Ltd.: Cetyl PEG / PPG-10 / 1 dimethyl polysiloxane

[0500] (Note 5) Produced by Shin-Etsu Chemical Co., Ltd.: Octylmethyl polysiloxane

[0501] (Note 6) Shin-Etsu Chemical Co., Ltd. manufactures: (methyl / phenyl) polysilsesquioxane

[0502] (Note 7) Shin-Etsu Chemical Co., Ltd.: Dimethyl polysiloxane dispersion of 40% particulate titanium dioxide

[0503] (Note 8) Shin-Etsu Chemical Co., Ltd.: Dimethyl polysiloxane dispersion of 60% particulate zinc oxide

[0504] (Note 9) Produced by Shin-Etsu Chemical Co., Ltd.: Dimethylpolysiloxane

[0505] (Manufacturing method)

[0506] A: Disperse components 11-15 evenly using a bead mill.

[0507] B: Mix components 1 to 7 evenly.

[0508] C: Mix components 16 to 22 evenly.

[0509] D: Add the product obtained in step C to the product obtained in step B above under stirring, emulsify, add A and ingredient 8-10, and obtain a water-in-oil sunscreen emulsion.

[0510] The water-in-oil sunscreen emulsion obtained as described above exhibits high stability, high transparency, a non-sticky and pleasant user experience, and excellent water resistance. The dispersion obtained in step A demonstrates excellent stability and is easy to handle and incorporate.

[0511] [Example 30] Water-based sunscreen gel

[0512]

[0513] (Note 1) Produced by Shin-Etsu Chemical Co., Ltd.: Dimethylpolysiloxane

[0514] (Note 2) Shin-Etsu Chemical Co., Ltd. manufactures: (vinyl dimethyl polysiloxane / methyl polysiloxane silsesquioxane) crosslinked polymer

[0515] (Manufacturing method)

[0516] A: Disperse components 1 to 9 evenly using a bead mill.

[0517] B: Mix components 10-14 evenly.

[0518] C: Add the product obtained in step A above to the product obtained in step B above, and mix them evenly.

[0519] D: After degassing the product obtained in step C above, it is filled into a container to obtain an aqueous sunscreen gel.

[0520] The water-based sunscreen gel obtained as described above exhibits excellent wettability, high stability, high transparency, a non-sticky and pleasant user experience, and excellent water resistance. The dispersion obtained in step A demonstrates excellent stability and is easy to handle and incorporate.

Claims

1. An aqueous dispersion containing: (a) Hydrophobic titanium dioxide microparticles with a number-average primary diameter of 8–200 nm, obtained by image analysis of transmission electron microscopy, and which have undergone hydrophobic treatment with organosilicon: 10–70% by mass. (b) Aqueous components having two or more alcoholic hydroxyl groups: 1.0–30% by mass (c) Polyglycerol-modified organosilicon dissolved in component (b): 1.0–20% by mass, and (d) Water: 8-82% by mass.

2. The aqueous dispersion according to claim 1, wherein, (a) The composition is hydrophobic microparticle titanium dioxide, which is made by hydrophobizing water-containing silica-coated titanium dioxide particles.

3. The aqueous dispersion according to claim 1, wherein, (a) The organosilicon in the ingredient is dimethylhydrosiloxane.

4. The aqueous dispersion according to claim 1, wherein, (b) The component is an aqueous component with two alcohol hydroxyl groups.

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

6. The aqueous dispersion according to claim 1, wherein, (c) The component is polyglycerol-3-disiloxane dimethylpolysiloxane.

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

9.

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

9. An aqueous dispersion containing: (a) Titanium oxide particles selected from hydrous silica-coated titanium oxide particles, and titanium oxide particles selected from hydrous silica-coated and aluminum hydroxide-coated titanium oxide particles, were hydrophobized with organosilicon selected from triethoxyoctylsilane, dimethyl organosilicon, hydrogen dimethyl polysiloxane, triethoxysilyl ethyl polydimethylsiloxane, and triethoxysilyl ethyl polydimethylsiloxane, and obtained by image analysis of transmission electron microscopy with a number-average primary particle size of 8–200 nm: 10–70% by mass. (b) Selected from one or more of BG (name), DPG (name), and glycerin: 1.0 to 30% by mass (c) Polyglycerol-3-disiloxane dimethylpolysiloxane: 1.0–20% by mass, and (d) Water: 8-82% by mass.

10. A cosmetic ingredient formulated with an aqueous dispersion according to any one of claims 1 to 9.

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