Sunscreen cosmetics

Abstract

What is provided is a sunscreen cosmetic that will reliably adhere to the skin. There is a resistance to 1 scrubbing that is excellent. Sunscreen cosmetics will contain the following components (A), (B) and (C): (A) Waxes with a melting point of 55°C or higher in an amount of 0.05 to 1.5% by mass; (B) silicone resin with (meth)acryl base; and (C) UV filter in the amount of From 2.5 to 45% by mass.

Description

Sunscreen cosmetics

[0001] The present invention relates to a sunscreen cosmetic.

[0002] Sunscreen cosmetics are required to have not only UV protection effects but also a texture that allows for continuous use. For example, in order to obtain a fresh, moisturizing texture that spreads easily and an excellent UV protection effect, an oil-in-water sunscreen cosmetic has been proposed that contains a specific amount of solid or semi-solid oil such as an alkyl-modified silicone wax and further has a total oil phase content that is below a certain level (Patent Document 1). However, the sunscreen cosmetic disclosed in Patent Document 1 had insufficient friction resistance and was prone to peeling when the surface of the application area was rubbed.

[0003] (Patent Document 1) JP 2017-66140 A (Patent Document 2) JP 2019-14708 A

[0004] The present invention provides a sunscreen cosmetic composition containing the following components (A), (B), and (C): (A) 0.05 to 1.5% by mass of a wax having a melting point of 55°C or higher, (B) a (meth)acrylic silicone resin, and (C) 2.5 to 45% by mass of an ultraviolet screening agent. Detailed Description of the Invention

[0005] In order to improve the abrasion resistance when an acrylic polymer having a dendrimer-type siloxane structure in its side chain is used in combination with an ultraviolet absorber, it has been proposed to formulate a sunscreen cosmetic by blending an acrylates / C10-30 alkyl acrylate crosspolymer in addition to these components (Patent Document 2), but even this cosmetic still had room for improvement in abrasion resistance. Furthermore, the cosmetic disclosed in Patent Document 2 felt sticky after application and did not feel comfortable on the skin.

[0006] The present invention relates to providing a sunscreen cosmetic that has good skin comfort and excellent abrasion resistance.

[0007] The present inventors have discovered that a sunscreen cosmetic composition that fits well on the skin and has excellent abrasion resistance can be obtained by combining a specific amount of a wax having a melting point of 55°C or higher with a (meth)acrylic silicone resin together with an ultraviolet screening agent, and have completed the present invention.

[0008] The sunscreen cosmetic of the present invention has good skin comfort and excellent abrasion resistance.

[0009] <Component (A)> The sunscreen cosmetic of the present invention contains (A) a wax having a melting point of 55°C or higher. Note that the wax of component (A) is a concept excluding components (B) and (D). The melting point of the wax of component (A) used in the present invention is 55°C or higher, but from the viewpoints of skin comfort, abrasion resistance, etc., it is preferably 57.5°C or higher, more preferably 60°C or higher, and from the viewpoint of ease of production, etc., it is preferably 140°C or lower, more preferably 125°C or lower, and particularly preferably 110°C or lower. Specific ranges are preferably 55°C or higher and 140°C or lower, more preferably 57.5°C or higher and 125°C or lower, and even more preferably 60°C or higher and 110°C or lower. In this specification, melting point means the melting point measured in accordance with JIS K0064.

[0010] The wax of component (A) is preferably an oil-soluble wax. Furthermore, a wax that is solid at 25°C under 1 atmosphere is preferred. Furthermore, the wax of component (A) may be a natural wax or a synthetic wax as long as it has a melting point of 55°C or higher. Examples include hydrocarbon waxes, silicone waxes, and vegetable waxes such as carnauba wax, candelilla wax, rice wax, sunflower wax, and hydrogenated jojoba oil; animal waxes such as beeswax; fluorine-based waxes; and synthetic beeswax. These may be used alone or in combination of two or more. Among these, from the viewpoints of skin comfort, abrasion resistance, and the like, one or more selected from hydrocarbon waxes and silicone waxes are preferred, and a combination of a hydrocarbon wax and a silicone wax or a silicone wax is more preferred, with a combination of a hydrocarbon wax and a silicone wax being particularly preferred. When a hydrocarbon wax and a silicone wax are used in combination, the mass ratio of the silicone wax (A-2) to the hydrocarbon wax (A-1) [(A-2) / (A-1)] is preferably 0.1 to 10, more preferably 0.25 to 4, and even more preferably 0.5 to 2, from the viewpoint of abrasion resistance.

[0011] Examples of hydrocarbon waxes (A-1) include mineral hydrocarbon waxes such as ozokerite and ceresin wax; petroleum hydrocarbon waxes such as paraffin wax and microcrystalline wax; and synthetic hydrocarbon waxes such as Fischer-Tropsch wax, polyethylene wax, and α-olefins having 28 or more carbon atoms. The number of carbon atoms in the α-olefin is preferably 30 to 60, and more preferably 30 to 50. Examples of α-olefins include linear α-olefins and branched α-olefins, with linear α-olefins being preferred. Among hydrocarbon waxes, ceresin wax, paraffin wax, microcrystalline wax, and synthetic hydrocarbon waxes are preferred from the viewpoint of abrasion resistance, with ceresin wax and synthetic hydrocarbon wax being particularly preferred.

[0012] As the silicone wax (A-2), alkyl-modified silicone wax is preferred. From the viewpoints of abrasion resistance and usability (non-stickiness), alkyl-modified silicone waxes are preferably those modified with an alkyl group having 9 to 80 carbon atoms. The alkyl group may be linear or branched. From the viewpoint of abrasion resistance, the number of carbon atoms in the alkyl group is preferably 16 or more, more preferably 20 or more, even more preferably 24 or more, and particularly preferably 28 or more. From the viewpoints of ease of production and usability (non-filmy feel), the number of carbon atoms is preferably 70 or less, more preferably 60 or less, and particularly preferably 50 or less. The substitution position of the alkyl group is optional, and the substitution form may be one-terminal, both-terminal, side-chain, or the like. The number of alkyl groups substituted is also optional, and may be one or two or more within a molecule. When the number of alkyl groups substituted is two or more, the two or more alkyl groups may be the same or different. A mixture of silicone waxes modified with different alkyl groups may also be used.

[0013] Specific examples of alkyl-modified silicone waxes include alkyl methicone waxes such as alkyl (C26-28) methicone and alkyl (C30-45) methicone; alkyl dimethicone waxes such as alkyl (C30-45) dimethicone; and silsesquioxane resin waxes such as alkyl (C30-45) dimethylsilyl polypropyl silsesquioxane. These may be used alone or in combination of two or more. Among these, from the viewpoints of skin comfort, friction resistance, etc., alkyl methicone wax and silsesquioxane resin wax are preferred, with alkyl methicone wax being particularly preferred.

[0014] The wax having a melting point of 55°C or higher may be a commercially available product or one synthesized according to a conventional method. Commercially available ceresin waxes include Ceresin #810 (manufactured by Nikko Rica Corporation) and Ceresin Wax SP-1020P (manufactured by STRAHL & PITSCH). Commercially available paraffin waxes include Paraffin Wax 140, 145, 150, 155, HNP-3, 5, and 9 (all manufactured by Nippon Seiro Co., Ltd.). Commercially available microcrystalline waxes include Multiwax W-445 and W-835 (manufactured by SONNEBORN), Paracera M (manufactured by Paramelt), Hi-Mic-1045, 1070, 2045, and HNP-0190 (manufactured by Nippon Seiro Co., Ltd.), refined microcrystalline wax (manufactured by Nikko Rica Corporation), and 155° Microwax (manufactured by Nippon Oil Corporation). Commercially available polyethylene waxes include PERFORMALENE 400, 500, 655, 700EP, and PL (manufactured by NEW PHASE TECHNOLOGIES), LASH WAX P (deodorizing product) (manufactured by Nippon Natural Products Co., Ltd.), and polyethylene wax PW-655N (manufactured by Toshoku Pigment Co., Ltd.). In addition to the polyethylene waxes mentioned above, commercially available synthetic hydrocarbon waxes include Lip Wax A-4 (manufactured by Nippon Natural Products Co., Ltd.). Commercially available alkyl (C26-28) methicones include BELSIL CM 7026 VP (manufactured by Wacker Asahi Kasei Silicone Co., Ltd., melting point 70°C). Commercially available alkyl (C30-45) dimethicones include SF-1642 (manufactured by Momentive Performance Materials Japan, LLC, melting point 60-70°C). Commercially available alkyl (C30-45) dimethylsilyl polypropylsilsesquioxanes include SW-8005 C30 Resin Wax (manufactured by Dow Corning Toray Co., Ltd., melting point 63-71°C). An example of a commercially available mixture of alkyl (C30-45) methicone and olefin (C30-45) is AMS-C30 Cosmetic Wax (manufactured by Toray Dow Corning Co., Ltd., melting point 73 to 77°C). Waxes with a melting point of 55°C or higher may be used alone or in combination of two or more.

[0015] The content of the wax having a melting point of 55°C or higher in the sunscreen cosmetic of the present invention is 0.05 to 1.5% by mass. By setting the content of the wax having a melting point of 55°C or higher within this range, good skin comfort is achieved. From the viewpoint of ease of production and the like, the content of the wax having a melting point of 55°C or higher in the sunscreen cosmetic of the present invention is preferably 0.075% by mass or more, more preferably 0.1% by mass or more. Also, from the viewpoint of ease of production and the like, the content of the wax having a melting point of 55°C or higher in the sunscreen cosmetic of the present invention is preferably 1.25% by mass or less, more preferably 1% by mass or less. A specific range is preferably 0.075 to 1.25% by mass, and more preferably 0.1 to 1% by mass, in the sunscreen cosmetic of the present invention. Furthermore, from the viewpoint of skin comfort, the content of the silicone wax (A-2) in the sunscreen cosmetic of the present invention is preferably 0.25% by mass or more, more preferably 0.5% by mass or more, in the sunscreen cosmetic of the present invention. Also, from the viewpoint of skin comfort, the content of the silicone wax (A-2) in the sunscreen cosmetic of the present invention is preferably 1.25% by mass or less, more preferably 1% by mass or less, in the sunscreen cosmetic of the present invention. Specifically, the content in the sunscreen cosmetic of the present invention is preferably 0.25 to 1.25% by mass, and more preferably 0.5 to 1% by mass.

[0016] <Component (B)> The sunscreen cosmetic of the present invention contains (B) a (meth)acrylic silicone resin. The inclusion of the (meth)acrylic silicone resin improves abrasion resistance. In this specification, the (meth)acrylic silicone resin of component (B) refers to a resin having a main chain segment containing repeating structural units derived from a (meth)acrylate monomer and a side chain silicone segment. The silicone segment may have a chain structure or a branched structure such as a tree structure.

[0017] Examples of (meth)acrylic silicone resins include those that are liquid, semi-solid, or solid at 25° C. under 1 atmosphere, with those that are solid at 25° C. under 1 atmosphere being preferred. Those mixed with a dispersion medium such as decamethylcyclopentasiloxane can also be used.

[0018] Examples of (meth)acrylic silicone resins include (meth)acrylic polymers having a dendrimer-type siloxane structure in the side chain, and (meth)acrylic-silicone graft copolymers. These may be used alone or in combination of two or more. Among these, from the viewpoint of abrasion resistance, (meth)acrylic polymers having a dendrimer-type siloxane structure in the side chain are preferred.

[0019] ((Meth)acrylic polymer having a dendrimer-type siloxane structure in a side chain) As the (meth)acrylic polymer having a dendrimer-type siloxane structure in a side chain, a (meth)acrylic polymer having a structural unit represented by the following formula (1) is preferred.

[0020]

[0021] [In formula (1), R 1 represents a hydrogen atom or a methyl group, R 2 represents an alkanediyl group having 1 to 10 carbon atoms, and D represents a dendrimer-type siloxane structure.

[0022] In formula (1), R 2 The number of carbon atoms in the alkanediyl group represented by R is preferably 1 to 3. 2 The alkanediyl group represented by the formula (I) may be linear or branched, and examples thereof include a methane-1,1-diyl group, an ethane-1,1-diyl group, an ethane-1,2-diyl group, a propane-1,1-diyl group, a propane-1,2-diyl group, a propane-1,3-diyl group, and a propane-2,2-diyl group.

[0023] Furthermore, examples of the dendrimer-type siloxane structure include those represented by the following formula (2).

[0024]

[0025] [In formula (2), R 3 represents an alkyl group or an aryl group having 1 to 10 carbon atoms; X 1 represents a silylalkyl group represented by the following formula (3) in which i=1, and * represents a bond.

[0026] In formula (2), R3 Examples of the alkyl group represented by the formula (I) include linear or branched alkyl groups having 1 to 10 carbon atoms (preferably 1 to 5 carbon atoms), such as methyl, ethyl, propyl, isopropyl, butyl, isobutyl, and pentyl groups; and cycloalkyl groups having 3 to 10 carbon atoms (preferably 4 to 8 carbon atoms), such as cyclopentyl and cyclohexyl groups. Examples of the aryl group include phenyl and naphthyl groups. 3 Among these, a methyl group and a phenyl group are preferred, and a methyl group is particularly preferred. 3 may be the same or different. 1 Similarly, may be the same or different.

[0027]

[0028] [In formula (3), R 3 has the same meaning as above, R 4 represents an alkanediyl group having 2 to 10 carbon atoms, and R 5 represents an alkyl group having 1 to 10 carbon atoms, and X i+1 represents a hydrogen atom, an alkyl group having 1 to 10 carbon atoms, an aryl group, or X i represents a silyl alkyl group similar to that represented by a i represents an integer of 0 to 3, and * represents a bond.

[0029] R 4 The number of carbon atoms of the alkanediyl group represented by R is preferably 2 to 6. 4 The alkanediyl group represented by the formula (I) may be linear or branched, and examples thereof include an ethane-1,1-diyl group, an ethane-1,2-diyl group, a propane-1,1-diyl group, a propane-1,2-diyl group, a propane-1,3-diyl group, a propane-2,2-diyl group, a butane-1,4-diyl group, a pentane-1,5-diyl group, a hexane-1,6-diyl group, a hexane-1,5-diyl group, and a hexane-2,5-diyl group. Of these, an ethane-1,2-diyl group is particularly preferred.

[0030] R 5 The alkyl group represented by R3 The alkyl group may be the same as the alkyl group represented by the formula (I), but a methyl group, an ethyl group, a propyl group, an isopropyl group, or a butyl group is preferred. i+1 The alkyl group and aryl group represented by R 3 The same as those shown in the following formula are preferred. i When is 2 or 3, 2 or 3 R 5 may be the same or different. i If is 0 or 1, then 2 or 3 X i+1 may be the same or different.

[0031] Furthermore, i is an integer of 1 to 10 and represents the number of generations of the silylalkyl group (the number of repetitions of the silylalkyl group). Furthermore, the dendrimer-type siloxane structure preferably has a silylalkyl group with a generation number of 1. Such a dendrimer-type siloxane structure can be represented by the following formula (4).

[0032]

[0033] [In formula (4), R 6 represents a hydrogen atom, an alkyl group having 1 to 10 carbon atoms, or an aryl group; R 6 The alkyl group and aryl group represented by R 3 The same as those shown in the following formula are preferred. 1 Haa i However, a in the dendrimer type siloxane structure is the same as 1 The average total number of is preferably 0 to 7. The other symbols have the same meanings as above.]

[0034] As a (meth)acrylic polymer having a dendrimer-type siloxane structure in a side chain, in addition to the structural unit represented by the above formula (1), one having a structural unit derived from a (meth)acrylate monomer other than the structural unit is preferred. Examples of such (meth)acrylate monomers include alkyl (meth)acrylates and glycidyl (meth)acrylate. These may be used alone or in combination of two or more. The alkyl group contained in the alkyl (meth)acrylate may be linear, branched, or cyclic. The alkyl (meth)acrylate preferably has an alkyl group having 1 to 30 carbon atoms, more preferably 1 to 22 carbon atoms, even more preferably 1 to 8 carbon atoms, even more preferably 1 to 3 carbon atoms, and particularly preferably 1 carbon atom. Examples of alkyl(meth)acrylates include methyl(meth)acrylate, ethyl(meth)acrylate, n-propyl(meth)acrylate, isopropyl(meth)acrylate, n-butyl(meth)acrylate, isobutyl(meth)acrylate, tert-butyl(meth)acrylate, n-hexyl(meth)acrylate, cyclohexyl(meth)acrylate, 2-ethylhexyl(meth)acrylate, octyl(meth)acrylate, lauryl(meth)acrylate, stearyl(meth)acrylate, and behenyl(meth)acrylate. Among these, methyl(meth)acrylate, 2-ethylhexyl(meth)acrylate, stearyl(meth)acrylate, and behenyl(meth)acrylate are preferred, with methyl(meth)acrylate being particularly preferred.

[0035] The total content of the structural unit represented by formula (1) and the structural unit derived from alkyl(meth)acrylate is preferably 90 to 100 mol %, more preferably 95 to 100 mol %, and particularly preferably 99 to 100 mol %, based on all structural units in the main chain.

[0036] The (meth)acrylic polymer having a dendrimer-type siloxane structure in its side chain may be a commercially available product, or may be one obtained by synthesis according to the methods described in JP-A-11-1530, JP-A-2000-63225, etc. For example, commercially available (acrylates / polytrimethylsiloxy methacrylate) copolymers include FA 4001 CM (30% by mass decamethylcyclopentasiloxane solution), FA 4002 ID (40% by mass isododecane solution), and FA 4003 DM (40% by mass dimethicone solution) (all manufactured by Dow Corning Toray Co., Ltd.).

[0037] ((Meth)acrylic-silicone graft copolymer) The (meth)acrylic-silicone graft copolymer is preferably a radical polymer of an organopolysiloxane compound having a radically polymerizable group at one end of the molecular chain and a (meth)acrylate monomer other than the said compound. For example, those described in JP-A Nos. 2-25411, 2-132141, 3-162442, and 2003-104825 can be used.

[0038] The (meth)acrylic-silicone graft copolymer preferably has a structural unit represented by the following formula (5).

[0039]

[0040] [In formula (5), R 11 represents a hydrogen atom or a methyl group, R 12 represents an alkanediyl group having 1 to 10 carbon atoms, and k represents an integer of 3 to 300.

[0041] In formula (5), R 12 The number of carbon atoms in the alkanediyl group represented by R is preferably 1 to 3. 12 The alkanediyl group represented by the formula (I) may be linear or branched, and examples thereof include methane-1,1-diyl, ethane-1,1-diyl, ethane-1,2-diyl, propane-1,1-diyl, propane-1,2-diyl, propane-1,3-diyl, and propane-2,2-diyl. k is preferably an integer of 5 to 100.

[0042] The (meth)acrylic-silicone graft copolymer preferably has, in addition to the structural unit represented by formula (5) above, a structural unit derived from a (meth)acrylate monomer other than the structural unit. Examples of such (meth)acrylate monomers include alkyl (meth)acrylates and glycidyl (meth)acrylate. Only one of these may be used, or two or more may be used in combination. The alkyl (meth)acrylate is preferably the same as the alkyl (meth)acrylate that may be used in a (meth)acrylic polymer having a dendrimer-type siloxane structure in its side chain.

[0043] The molar ratio of the structural unit represented by formula (5) to the structural unit derived from alkyl (meth)acrylate in the (meth)acrylic-silicone graft copolymer is preferably 1:10 to 10:1. The total content of the structural unit represented by formula (5) and the structural unit derived from alkyl (meth)acrylate is preferably 90 to 100 mol %, more preferably 95 to 100 mol %, and particularly preferably 99 to 100 mol %, based on all structural units in the main chain.

[0044] Specific examples of the (meth)acrylic-silicone graft copolymer include (acrylates / dimethicone) copolymer, (acrylates / ethylhexyl acrylate / dimethicone methacrylate) copolymer, (acrylates / stearyl acrylate / dimethicone methacrylate) copolymer, and (acrylates / behenyl acrylate / dimethicone methacrylate) copolymer (all of which are cosmetic labeling names).

[0045] The (meth)acrylic-silicone graft copolymer may be a commercially available product or one synthesized according to a conventional method. Commercially available (acrylates / dimethicone) copolymers include KP-541 (a mixture with isopropanol, content: 60% by mass), KP-545 (a mixture with decamethylcyclopentasiloxane, content: 30% by mass), KP-549 (a mixture with methyltrimethicone, content: 40% by mass), and KP-550 (a mixture with isododecane, content: 40% by mass) (all manufactured by Shin-Etsu Chemical Co., Ltd.). Furthermore, examples of commercially available products of (acrylates / ethylhexyl acrylate / dimethicone methacrylate) copolymer include KP-575 (a mixture with decamethylcyclopentasiloxane, content: 30% by mass), examples of commercially available products of (acrylates / stearyl acrylate / dimethicone methacrylate) copolymer include KP-561P, and examples of commercially available products of (acrylates / behenyl acrylate / dimethicone methacrylate) copolymer include KP-562P (all manufactured by Shin-Etsu Chemical Co., Ltd.).

[0046] The (meth)acrylic silicone resin may be used alone or in combination of two or more. From the viewpoint of friction resistance, etc., the content of the (meth)acrylic silicone resin in the sunscreen cosmetic of the present invention is preferably 0.01% by mass or more, more preferably 0.05% by mass or more, even more preferably 0.1% by mass or more, and particularly preferably 0.2% by mass or more. From the viewpoint of friction resistance, skin comfort, etc., the content of the (meth)acrylic silicone resin in the sunscreen cosmetic of the present invention is preferably 10% by mass or less, more preferably 6% by mass or less, even more preferably 3% by mass or less, and particularly preferably 1.5% by mass or less. The specific range is preferably 0.01% by mass or more and 10% by mass or less, more preferably 0.05% by mass or more and 6% by mass or less, even more preferably 0.1% by mass or more and 3% by mass or less, even more preferably 0.1% by mass or more and 1.5% by mass or less, and particularly preferably 0.2% by mass or more and 1.5% by mass or less.

[0047] The mass ratio of component (A) to component (B) [(A) / (B)] is preferably 0.01 or more, more preferably 0.05 or more, even more preferably 0.1 or more, still more preferably 0.4 or more, particularly preferably 0.55 or more, and is preferably 10 or less, more preferably 5 or less, even more preferably 2.5 or less, particularly preferably 1.5 or less. Specific ranges are preferably 0.01 or more and 10 or less, more preferably 0.05 or more and 5 or less, even more preferably 0.1 or more and 2.5 or less, still more preferably 0.4 or more and 1.5 or less, and particularly preferably 0.55 or more and 1.5 or less.

[0048] <Component (C)> The sunscreen cosmetic of the present invention contains (C) an ultraviolet screening agent. The ultraviolet screening agent may be at least one selected from a hydrophobized ultraviolet scattering agent and an ultraviolet absorber.

[0049] (Hydrophobic treatment ultraviolet scattering agent) As the hydrophobic treatment ultraviolet scattering agent, hydrophobic treatment fine particle metal oxide is preferred.As the fine particle metal oxide used for hydrophobic treatment fine particle metal oxide, from the viewpoint of easy availability, one or more fine particle metal oxides selected from zinc oxide, titanium oxide, cerium oxide, iron oxide and chromium oxide are preferred.Among these fine particle metal oxides, from the viewpoint of ultraviolet protection effect, abrasion resistance, etc., one or more fine particle metal oxides selected from zinc oxide, titanium oxide and cerium oxide are preferred, one or more fine particle metal oxides selected from zinc oxide and titanium oxide are more preferred, and fine particle zinc oxide is particularly preferred.In addition, these fine particle metal oxides can contain trace elements with a valence of +2 or more, and metals such as iron, zirconium, calcium, manganese, magnesium, yttrium, etc. can be contained alone or in combination of two or more kinds in the fine particle metal oxide.

[0050] The shape of the "fine particle metal oxide" is not particularly limited, and examples thereof include spherical, plate-like, rod-like, spindle-like, needle-like, and irregular shapes. The average particle size of the "fine particle metal oxide" is preferably 0.01 μm or more, more preferably 0.012 μm or more, and particularly preferably 0.015 μm or more, and is preferably 1 μm or less, more preferably 0.8 μm or less, and particularly preferably 0.5 μm or less. The specific range of the average particle size is preferably 0.01 μm or more and 1 μm or less, more preferably 0.012 μm or more and 0.8 μm or less, and particularly preferably 0.015 μm or more and 0.5 μm or less. The average particle size of the fine particle metal oxide means the average particle size measured by a laser diffraction / scattering method.

[0051] Commercially available examples of zinc oxide particles include FINEX-25, FINEX-30, FINEX-50, and FINEX-75 (manufactured by Sakai Chemical Industry Co., Ltd.), the MZ500 series and MZ700 series (manufactured by Teika Corporation), and ZnO-350 (manufactured by Sumitomo Osaka Cement Co., Ltd.). Commercially available examples of titanium oxide particles include the TTO-55 series and TTO-51 series (manufactured by Ishihara Sangyo Kaisha), the JR series, and the JA series (manufactured by Teika Corporation). As cerium oxide particles, for example, high-purity cerium sold by Nikki Co., Ltd. or Seimi Chemical Co., Ltd. may be used.

[0052] The hydrophobization treatment of the fine particle metal oxide may be carried out using a known surface treatment agent for hydrophobization, and examples thereof include fluorine compound treatment, silicone treatment, silicone resin treatment, pendant treatment, silane coupling agent treatment, titanium coupling agent treatment, oil treatment, N-acylated lysine treatment, polyacrylic acid treatment, metal soap treatment, amino acid treatment, inorganic compound treatment, plasma treatment, mechanochemical treatment, silane compound treatment, silazane compound treatment, etc. Among these treatments, treatment with silicone or silicone resin, treatment with silane compound or silazane compound, and metal soap treatment such as aluminum isostearate are preferred from the viewpoint of dispersion stability, etc.

[0053] Examples of silicones or silicone resins include methylpolysiloxane, methylphenylpolysiloxane, methylhydrogenpolysiloxane, methylhydrogenpolysiloxane-dimethylpolysiloxane copolymer, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, octamethyltrisiloxane, tetradecamethylhexasiloxane, dimethylsiloxane-methyl(polyoxyethylene)siloxane-methyl(polyoxypropylene)siloxane copolymer, dimethylsiloxane-methyl(polyoxyethylene)siloxane copolymer, dimethylsiloxane-methyl(polyoxypropylene)siloxane copolymer, dimethylsiloxane-methylcetyloxysiloxane copolymer, dimethylsiloxane-methylstearoxysiloxane copolymer, etc. As the methylhydrogenpolysiloxane-dimethylpolysiloxane copolymer, one represented by the following formula (6) is preferred.

[0054]

[0055] [In formula (6), m and n are integers of 0 or more, and 1≦m+n≦60.]

[0056] The silane compound or silazane compound is preferably a silane compound or silazane compound having an alkyl group having 1 to 20 carbon atoms or a fluoroalkyl group having 1 to 20 carbon atoms and reactive with inorganic oxides, and more preferably a silane compound represented by the following formula (7) or a silazane compound represented by the following formula (8). These compounds may be used alone or in combination of two or more.

[0057] R 21 (R 22 ) p Si(Z) 3-p ... (7)

[0058] [In formula (7), R 21 represents a linear or branched alkyl group having 1 to 20 carbon atoms or a linear or branched fluoroalkyl group having 1 to 20 carbon atoms; R 22represents a linear or branched alkyl group having 1 to 6 carbon atoms, Z represents a halogen atom or an alkoxy group, and p represents 0 or 1.

[0059] R 23 R 24 R 25 SiNHSiR 26 R 27 R 28 ...(8)

[0060] [In formula (8), R 23 ~R 28 each independently represents a linear or branched alkyl group having 1 to 20 carbon atoms, or a linear or branched fluoroalkyl group having 1 to 20 carbon atoms.

[0061] As the silane compound, from the viewpoint of dispersion stability, etc., alkylalkoxysilane or fluoroalkylalkoxysilane is preferred, and alkyltrialkoxysilane or fluoroalkyltrialkoxysilane is more preferred.Specific examples include hexyltrimethoxysilane, octyltrimethoxysilane, octyltriethoxysilane, decyltrimethoxysilane, octadecyltrimethoxysilane, trifluoropropyltrimethoxysilane, heptadecafluorodecyltrimethoxysilane, etc.It should be noted that one of these may be used alone or two or more may be used in combination.Among these, octyltrimethoxysilane and octyltriethoxysilane are more preferred.Furthermore, specific examples of the silazane compound include hexamethyldisilazane, etc.

[0062] The coating amount of the surface treatment agent used in the hydrophobization treatment is preferably 1 part by mass or more, more preferably 3 parts by mass or more, per 100 parts by mass of the fine particle metal oxide, from the viewpoints of emulsion stability, dispersion stability, etc., and is preferably 15 parts by mass or less, more preferably 10 parts by mass or less, per 100 parts by mass of the fine particle metal oxide, from the viewpoints of emulsion stability, dispersion stability, etc.

[0063] The hydrophobic treatment can be carried out by appropriately selecting a conventionally known method. For example, treatment with silicone or silicone resin includes, as described in Japanese Patent No. 3187440, a method in which a fine particle metal oxide is coated in a non-gas phase using at least one silicone compound (excluding silane compounds) composed of organopolysiloxanes and silicone resins, and then baked in an oxygen-containing atmosphere at a temperature of 600 to 950°C to coat the surface of the fine particle metal oxide with silicon oxide. Treatment methods using silane compounds or silazane compounds include chemical bonding methods, more specifically, a method in which a silane compound or silazane compound is mixed with a fine particle metal oxide in an organic solvent such as n-hexane, cyclohexane, or a lower alcohol, and then finely pulverized as necessary, and the organic solvent is then removed by heating (e.g., 80 to 250°C) or by reducing pressure. Another example is a method in which a surface is treated with a polysiloxane compound in water using a silane compound, as described in Japanese Patent Laid-Open No. 2007-326902.

[0064] The hydrophobic treated ultraviolet scattering agents may be used alone or in combination of two or more.

[0065] (UV absorber) As the UV absorber, organic UV absorbers are preferred from the viewpoints of water resistance, friction resistance, solubility, etc. Examples of organic UV absorbers include benzoic acid UV absorbers, anthranilic acid UV absorbers, salicylic acid UV absorbers, cinnamic acid UV absorbers, benzophenone UV absorbers, triazine UV absorbers, and silicone UV absorbers. Among these, from the viewpoints of UV protection effect, solubility, etc., one or more selected from cinnamic acid UV absorbers and triazine UV absorbers are preferred. Furthermore, as the organic UV absorber, oil-soluble organic UV absorbers are preferred.

[0066] Examples of benzoic acid-based ultraviolet absorbers include para-aminobenzoic acid (PABA), glyceryl PABA, ethyl dihydroxypropyl PABA, N-ethoxylate PABA ethyl ester, N-dimethyl PABA ethyl ester, N-dimethyl PABA butyl ester, N-dimethyl PABA amyl ester, octyl dimethyl PABA, and diethylaminohydroxybenzoyl hexyl benzoate. Examples of anthranilic acid-based ultraviolet absorbers include homomenthyl-N-acetylanthranilate. Examples of salicylic acid-based ultraviolet absorbers include amyl salicylate, menthyl salicylate, homomenthyl salicylate, octyl salicylate, phenyl salicylate, benzyl salicylate, and p-isopropanol phenyl salicylate.

[0067] Examples of cinnamic acid-based ultraviolet absorbers include octyl cinnamate, ethyl 4-isopropyl cinnamate, ethyl 2,4-diisopropyl cinnamate, methyl 2,4-diisopropyl cinnamate, propyl p-methoxy cinnamate, isopropyl p-methoxy cinnamate, isoamyl p-methoxy cinnamate, 2-ethylhexyl p-methoxy cinnamate, 2-ethoxyethyl p-methoxy cinnamate, cyclohexyl p-methoxy cinnamate, ethyl α-cyano-β-phenyl cinnamate, 2-ethylhexyl α-cyano-β-phenyl cinnamate, and glyceryl mono-2-ethylhexanoyl di-para-methoxy cinnamate. Examples of the benzophenone-based ultraviolet absorber include 2,4-dihydroxybenzophenone, 2,2'-dihydroxy-4-methoxybenzophenone, 2,2'-dihydroxy-4,4'-dihydroxybenzophenone, 2-hydroxy-4-methoxybenzophenone, 2-hydroxy-4-methoxy-4'-methylbenzophenone, 2-hydroxy-4-methoxybenzophenone, 4-phenylbenzophenone, 2-ethylhexyl-4'-phenylbenzophenone-2-carboxylate, 2-hydroxy-4-n-octoxybenzophenone, and 4-hydroxy-3-carboxybenzophenone. Examples of triazine-based ultraviolet absorbers include 2,4,6-tris[4-(2-ethylhexyloxycarbonyl)anilino]-1,3,5-triazine, dioctylbutamidotriazone, 2,4-bis-[{4-(2-ethylhexyloxy)-2-hydroxy}-phenyl]-6-(4-methoxyphenyl)-1,3,5-triazine, etc. Examples of silicone-based ultraviolet absorbers include dimethicodiethylbenzalmalonate, etc.Other organic ultraviolet absorbers include 3-(4'-methylbenzylidene)-dl-camphor, 3-benzylidene-dl-camphor, urocanic acid ethyl ester, 2-phenyl-5-methylbenzoxazole, 2,2'-hydroxy-5-methylphenylbenzotriazole, 2-(2'-hydroxy-5-t-octylphenyl)benzotriazole, dibenzalazine, dianisoylmethane, 4-methoxy-4'-t-butyldibenzoylmethane, 5-(3,3-dimethyl-2-norbornylidene)-3-pentan-2-one, benzene bis-1,3-diketone derivatives described in JP-A No. 2-212579, and benzoyl pinacolone derivatives described in JP-A No. 3-220153.

[0068] Organic UV absorbers can also be roughly divided into those that are solid at 25°C under 1 atmosphere and those that are liquid at 25°C under 1 atmosphere. For example, the above-mentioned diethylaminohydroxybenzoylhexyl benzoate, 2,4-bis-[{4-(2-ethylhexyloxy)-2-hydroxy}-phenyl]-6-(4-methoxyphenyl)-1,3,5-triazine, and 2,4,6-tris[4-(2-ethylhexyloxycarbonyl)anilino]-1,3,5-triazine are organic UV absorbers that are solid at 25°C under 1 atmosphere. The above-mentioned isopropyl-p-methoxycinnamate, 2-ethylhexyl-p-methoxycinnamate, and 2-ethoxyethyl-p-methoxycinnamate are organic UV absorbers that are liquid at 25°C under 1 atmosphere.

[0069] The ultraviolet absorbers may be used alone or in combination of two or more.

[0070] The content of the UV-shielding agent in the sunscreen cosmetic of the present invention is 2.5 to 45% by mass. By setting the content of the UV-shielding agent within this range, stickiness after application can be suppressed and sufficient UV-protection effect can be achieved. From the viewpoints of UV-protection effect, abrasion resistance, etc., the content of the UV-shielding agent in the sunscreen cosmetic of the present invention is preferably 5% by mass or more, more preferably 7% by mass or more, and particularly preferably 10% by mass or more. From the viewpoints of non-stickiness, storage stability, etc., the content of the UV-shielding agent in the sunscreen cosmetic of the present invention is preferably 40% by mass or less, more preferably 35% by mass or less, and particularly preferably 30% by mass or less. A specific range is preferably 5% by mass or more and 40% by mass or less, more preferably 7% by mass or more and 35% by mass or less, and particularly preferably 10% by mass or more and 30% by mass or less, in the sunscreen cosmetic of the present invention.

[0071] When a hydrophobized ultraviolet scattering agent is used as the ultraviolet screening agent, the content of the hydrophobized ultraviolet scattering agent in the sunscreen cosmetic of the present invention is preferably from 0.5 to 25% by mass, more preferably from 1 to 20% by mass, and particularly preferably from 2.5 to 15% by mass. When a UV absorber is used as the ultraviolet screening agent, the content of the UV absorber in the sunscreen cosmetic of the present invention is preferably from 0.5 to 25% by mass, more preferably from 1 to 20% by mass, and particularly preferably from 2.5 to 15% by mass.

[0072] The mass ratio of component (A) to component (C) [(A) / (C)] is preferably 0.0005 or more, more preferably 0.001 or more, from the viewpoint of skin comfort, etc., and is preferably 1 or less, more preferably 0.7 or less, even more preferably 0.5 or less, and particularly preferably 0.3 or less, from the viewpoint of ease of production, etc. Specific ranges are preferably 0.0005 or more and 1 or less, more preferably 0.0005 or more and 0.7 or less, even more preferably 0.001 or more and 0.5 or less, and particularly preferably 0.001 or more and 0.3 or less.

[0073] The mass ratio of component (B) to component (C) [(B) / (C)] is preferably 0.0005 or more, more preferably 0.001 or more, and particularly preferably 0.004 or more from the viewpoint of friction resistance, etc., and is preferably 1.5 or less, more preferably 0.5 or less, even more preferably 0.1 or less, and particularly preferably 0.05 or less from the viewpoint of usability (good skin comfort), etc. Specific ranges are preferably 0.0005 or more and 1.5 or less, more preferably 0.001 or more and 0.5 or less, even more preferably 0.001 or more and 0.1 or less, and particularly preferably 0.004 or more and 0.05 or less.

[0074] <Component (D)> From the viewpoints of abrasion resistance, skin comfort, etc., the sunscreen cosmetic of the present invention preferably further contains (D) a silicone film-forming agent in addition to components (A) to (C). In this specification, the silicone film-forming agent of component (D) refers to an agent whose main chain is a silicone segment with a chain structure or a branched structure and which has the ability to form a film. An example of the silicone segment with a branched structure is a silsesquioxane segment.

[0075] Examples of silicone-based film-forming agents include poly(N-acylalkyleneimine)-modified silicones (e.g., oxazoline-modified silicones), polyalkylsilsesquioxanes, trimethylsiloxysilicates, and (trimethylsiloxysilicate / dimethiconol) crosspolymers. These may be used alone or in combination of two or more. Among these, from the viewpoints of friction resistance, comfort on the skin, and the like, poly(N-acylalkyleneimine)-modified silicones and polyalkylsilsesquioxanes are preferred, with poly(N-acylalkyleneimine)-modified silicones being more preferred.

[0076] (Poly(N-acylalkyleneimine)-Modified Silicone) The poly(N-acylalkyleneimine)-modified silicone is preferably an organopolysiloxane in which poly(N-acylalkyleneimine) segments consisting of repeating units represented by the following general formula (9) are bonded to at least two silicon atoms of organopolysiloxane segments constituting the main chain via alkylene groups containing heteroatoms, in which the poly(N-acylalkyleneimine) segments have a number average molecular weight of 500 to 4000, and the organopolysiloxane segments constituting the main chain have a weight average molecular weight of 10,000 to 200,000 (hereinafter, this organopolysiloxane will also be referred to as organopolysiloxane (OX)).

[0077]

[0078] [In formula (9), R 41 represents a hydrogen atom, an alkyl group having 1 to 22 carbon atoms, an aralkyl group, or an aryl group, and t represents 2 or 3.

[0079] Here, the organopolysiloxane (OX) will be described in detail. At least two poly(N-acylalkyleneimine) segments are bonded to any silicon atom constituting the organopolysiloxane segment via an alkylene group containing a heteroatom, but it is preferred that the poly(N-acylalkyleneimine) segment is bonded to one or more silicon atoms excluding those at both ends of the organopolysiloxane segment via the alkylene group, and it is more preferred that the poly(N-acylalkyleneimine) segment is bonded to two or more silicon atoms excluding those at both ends via the alkylene group.

[0080] The alkylene group containing a heteroatom functions as a linking group for the poly(N-acylalkyleneimine) segment. Examples of the alkylene group containing a heteroatom include alkylene groups having 2 to 20 carbon atoms and containing 1 to 3 nitrogen atoms, oxygen atoms, or sulfur atoms. Among these, groups represented by any of the following formulae (A1) to (A10) are preferred, groups represented by any of formulae (A1) to (A4) are more preferred, and groups represented by formula (A1) or (A2) are particularly preferred. In the formulae, An -represents a counter ion of the quaternary ammonium salt, examples of which include halide ions (e.g., chloride ion, iodide ion), sulfate ion, phosphate ion, acetate ion, lactate ion, p-toluenesulfonate ion, perchlorate ion, and monoalkylnitrate ions (e.g., methylsulfate ion, ethylsulfate ion).

[0081]

[0082] In the N-acylalkyleneimine unit constituting the poly(N-acylalkyleneimine) segment, in general formula (9), R 41 The number of carbon atoms in the alkyl group represented by R is 1 to 22, preferably 1 to 14, more preferably 1 to 6, and particularly preferably 1 to 3. The alkyl group may be linear or branched. Examples of the alkyl group include a methyl group, an ethyl group, an n-propyl group, an isopropyl group, an n-butyl group, a tert-butyl group, a pentyl group, and a hexyl group. 41 The aralkyl group represented by the formula (I) is preferably an aralkyl group having 7 to 15 carbon atoms. Examples thereof include a benzyl group, a phenethyl group, a trityl group, a naphthylmethyl group, and an anthracenylmethyl group. 41 The aryl group represented by the formula (I) is preferably an aryl group having 6 to 14 carbon atoms. Examples thereof include a phenyl group, a tolyl group, a xylyl group, a naphthyl group, a biphenyl group, an anthracenyl group, and a phenanthryl group. Among these, R 41 is preferably a hydrogen atom or a linear or branched alkyl group having 1 to 3 carbon atoms, more preferably a linear or branched alkyl group having 1 to 3 carbon atoms. In formula (9), t represents 2 or 3, with 2 being preferred.

[0083] In the organopolysiloxane (OX), the weight average molecular weight (hereinafter also referred to as "MWg") of the organopolysiloxane segment between adjacent poly(N-acylalkyleneimine) segments is preferably 1,000 to 40,000, more preferably 1,500 to 30,000, and particularly preferably 1,750 to 5,000, from the viewpoint of abrasion resistance and the like.

[0084] In this specification, the term "organopolysiloxane segment between adjacent poly(N-acylalkyleneimine) segments" refers to the area surrounded by a dashed line between the two points from the bonding point (bonding point A) of the poly(N-acylalkyleneimine) segment to the organopolysiloxane segment to the bonding point (bonding point B) of the adjacent poly(N-acylalkyleneimine) segment, as shown in the following formula (10), and is a region where one R 42 SiO unit and one R 43 and y+1 (R 42 )2SiO units. 43 -Z binds to 11 -R 44 This refers to

[0085]

[0086] [In formula (10), R 42 each independently represents an alkyl group having 1 to 22 carbon atoms or a phenyl group, R 43 represents an alkylene group containing a heteroatom, -Z 11 -R 44 represents a poly(N-acylalkyleneimine) segment, and R 44 represents a residue of a polymerization initiator or a hydrogen atom, and y represents a positive number. 42 , R 43 , R 44 may be the same or different.

[0087] MWg is the molecular weight of the portion enclosed by the dashed line in formula (10) above, and can be interpreted as the mass (g / mol) of organopolysiloxane segments per mole of poly(N-acylalkyleneimine) segments. Note that when 100% of the functional groups of the modified organopolysiloxane raw material compound are substituted with poly(N-acylalkyleneimine), this corresponds to the functional group equivalent (g / mol) of the modified organopolysiloxane.

[0088] The molecular weight of the poly(N-acylalkyleneimine) segment can be calculated from the molecular weight and degree of polymerization of the N-acylalkyleneimine unit, or can be measured by gel permeation chromatography (GPC). In this specification, however, it refers to the polystyrene-equivalent number average molecular weight (hereinafter also referred to as MNox) measured by GPC under the measurement conditions described below. From the viewpoint of abrasion resistance, etc., MNox is preferably 800 to 3500, more preferably 1000 to 3000.

[0089] Furthermore, MWg can be calculated using the content (mass%) of organopolysiloxane segments constituting the main chain (hereinafter also referred to as Csi) according to the following formula (I).

[0090] MWg = Csi×MNox / (100-Csi) (I)

[0091] From the viewpoint of abrasion resistance and the like, the weight average molecular weight (hereinafter also referred to as MWsi) of the organopolysiloxane segment constituting the main chain is preferably 15,000 to 160,000, more preferably 20,000 to 150,000, and particularly preferably 25,000 to 100,000. Because the organopolysiloxane segment constituting the main chain has a common skeleton with the modified organopolysiloxane raw material compound, MWsi is approximately the same as the weight average molecular weight of the modified organopolysiloxane raw material compound. The weight average molecular weight of the modified organopolysiloxane raw material compound is a polystyrene-equivalent weight average molecular weight measured by GPC under the following measurement conditions:

[0092] (Conditions for measuring the weight-average molecular weight of modified organopolysiloxane) Column: Super HZ4000 + Super HZ2000 (Tosoh Corporation) Eluent: 1 mM triethylamine / THF Flow rate: 0.35 mL / min Column temperature: 40°C Detector: UV Sample: 50 μL

[0093] From the viewpoint of abrasion resistance and the like, the weight average molecular weight (hereinafter also referred to as MWt) of the organopolysiloxane (OX) is preferably 12,000 to 200,000, more preferably 25,000 to 160,000, and particularly preferably 35,000 to 150,000. MWt refers to a polystyrene-equivalent value measured by GPC under the measurement conditions described below.

[0094] (Measuring conditions for MNox and MWt) Column: K-804L (Tosoh Corporation), two columns connected in series Eluent: 1 mM dimethyldodecylamine / chloroform Flow rate: 1.0 mL / min Column temperature: 40°C Detector: RI Sample: 50 μL

[0095] In addition, when the poly(N-acylalkyleneimine) segment is a poly(N-propionylethyleneimine) segment, the mass ratio (a / b) is calculated as follows: 1 H-NMR measurement can be carried out, for example, under the following conditions: 1 H-NMR measurement conditions) 0.5 g of polymer sample was dissolved in 2 g of measurement solvent (d-chloroform), 1 Measurements were taken using H-NMR (400 MHz, manufactured by Varian). The ratio of silicone to poly(N-propionylethyleneimine) was calculated from each integral value. PULSE SEQUENCE: Relax delay: 30 seconds, Pulse: 45 degrees, Number of integrations: 8. Confirmed peaks: Near 0 ppm: methyl group of polydimethylsiloxane, Near 3.4 ppm: methylene moiety of ethyleneimine.

[0096] The organopolysiloxane (OX) may be one obtained by synthesis according to the methods described in JP-A-2008-143820, JP-A-2009-24114, JP-A-2015-67603, etc. For example, it can be produced by reacting an organopolysiloxane modified with a functional group that induces the above-mentioned "alkylene group containing a hetero atom" with a terminally reactive poly(N-acylalkyleneimine) obtained by ring-opening polymerization of a cyclic iminoether corresponding to the repeating unit represented by general formula (9).

[0097] (Polyalkylsilsesquioxane) As the polyalkylsilsesquioxane, for example, those described in JP-A-4-312511 can be used. 51 SiO 1.5 Units: 50 to 99 mol% and R 52 3SiO 0.5 Unit: silicone resin containing 1 to 50 mol% (wherein R 51 and R 52 and each independently represent a substituted or unsubstituted monovalent hydrocarbon group. 51 SiO 1.5 silanol group-containing organopolysilsesquioxane containing repeating units (wherein R 51 is the same as above), relative to 100 parts by mass of (R 52 3Si) q R 53 (In the formula, R 52 is as defined above, q is 1 or 2, R 53 When q is 1, it represents a hydrogen atom, a hydroxyl group, or a hydrolyzable group (the hydrolyzable group is preferably an alkoxy group having 1 to 4 carbon atoms, such as a methoxy group or an ethoxy group), and when q is 2, it represents -O-, -N(R 54 )- or -S-. 54 represents a hydrogen atom, a substituted or unsubstituted monovalent hydrocarbon group, or R 52 3Si—) with 5 to 100 parts by mass of a silicone compound represented by the formula R 51 , R 52 and R 54 The number of carbon atoms in the monovalent hydrocarbon group represented by the formula (I) is preferably 1 to 4. As the monovalent hydrocarbon group, a linear or branched alkyl group such as a methyl group, an ethyl group, a propyl group, an isopropyl group, a butyl group, or an isobutyl group is preferred. Note that examples of groups that can be substituted on the monovalent hydrocarbon group include halogen atoms such as a chlorine atom and a bromine atom.

[0098] The polyalkylsilsesquioxane is preferably one that is semi-solid or solid at 1 atmosphere and 25° C. Alternatively, one mixed with a dispersion medium such as decamethylcyclopentasiloxane can also be used.

[0099] Specific examples of polyalkylsilsesquioxanes include polymethylsilsesquioxane and polypropylsilsesquioxane. The polyalkylsilsesquioxanes may be used alone or in combination of two or more. Among these, polypropylsilsesquioxane is preferred.

[0100] The polyalkylsilsesquioxane may be a commercially available product or one synthesized according to a conventional method. Commercially available polyalkylsilsesquioxane products include 670 Fluid (a mixture with decamethylcyclopentasiloxane, content: 50% by mass), 680 ID Fluid (a mixture with isododecane, content: 75% by mass) (manufactured by Dow Corning Toray Co., Ltd.), SilForm Flexible resin, and SilForm Flexible fluid (a mixture with decamethylcyclopentasiloxane, content: 50% by mass) (manufactured by Momentive Performance Materials).

[0101] The content of the silicone film-forming agent in the sunscreen cosmetic of the present invention is preferably 0.0001% by mass or more, more preferably 0.0005% by mass or more, even more preferably 0.001% by mass or more, and particularly preferably 0.005% by mass or more, from the viewpoints of abrasion resistance, skin comfort, ease of production, etc., and is preferably 5% by mass or less, more preferably 1% by mass or less, even more preferably 0.5% by mass or less, and particularly preferably 0.2% by mass or less, from the viewpoints of abrasion resistance, skin comfort, ease of production, etc. A specific range is preferably from 0.0001% by mass to 5% by mass, more preferably from 0.0005% by mass to 1% by mass, even more preferably from 0.001% by mass to 0.5% by mass, and particularly preferably from 0.005% by mass to 0.2% by mass.

[0102] The mass ratio of component (D) to component (C) [(D) / (C)] is preferably 0.00001 or more, more preferably 0.0001 or more, and particularly preferably 0.001 or more, from the viewpoints of abrasion resistance, skin comfort, etc., and is preferably 1 or less, more preferably 0.1 or less, and particularly preferably 0.05 or less, from the viewpoints of ease of production, feel in use (good spreadability), etc. Specifically, the range is preferably 0.00001 or more and 1 or less, more preferably 0.0001 or more and 0.1 or less, and particularly preferably 0.001 or more and 0.05 or less.

[0103] In addition to the above-mentioned components, the sunscreen cosmetic of the present invention may contain water; liquid oils other than organic UV absorbers that are liquid at 25°C under 1 atmosphere (hereinafter also referred to as "other liquid oils"); surfactants such as anionic surfactants, cationic surfactants, nonionic surfactants, and amphoteric surfactants; powders other than hydrophobized UV scattering agents; waxes other than those mentioned above; water-soluble polymers such as xanthan gum and (sodium acrylate / sodium acryloyldimethyltaurate) copolymer; monohydric alcohols such as ethanol and propanol; polyhydric alcohols such as ethylene glycol, propylene glycol, 1,3-butylene glycol, glycerin, diglycerin, and polyglycerin; chelating agents; preservatives; fragrances; pH adjusters; moisturizers; refreshing agents; conditioning agents, etc. These may be used alone or in combination of two or more.

[0104] The water content in the sunscreen cosmetic of the present invention is preferably from 5% by mass to 90% by mass, more preferably from 7% by mass to 80% by mass, even more preferably from 10% by mass to 70% by mass, and particularly preferably from 20% by mass to 70% by mass.

[0105] The other liquid oil refers to an oil that is liquid at 25°C under 1 atmosphere, other than an organic UV absorber, and may be a volatile oil or a non-volatile oil. One type may be used alone, or two or more types may be used in combination. A volatile oil is an oil that is volatile at 25°C, and a non-volatile oil is an oil that is not volatile at 25°C.

[0106] Examples of volatile oils include light isoparaffin, decamethylcyclopentasiloxane, octamethylcyclotetrasiloxane, dodecamethylcyclohexasiloxane, methyltrimethicone, decamethyltetrasiloxane, ethyltrisiloxane, and volatile methylpolysiloxane. Commercially available light isoparaffin products include Isopar H (manufactured by Esso Chemical Co., Ltd.), Isododecane (manufactured by Bayer), Isohexadecane (manufactured by Uniqema), IP Solvent 1620MU, IP Solvent 2028MU, and IP Solvent 2835 (all manufactured by Idemitsu Kosan Co., Ltd.). Commercially available decamethylcyclopentasiloxane products include TFS405 (manufactured by Momentive Performance Materials Japan, LLC), SH245, DC345 (manufactured by Dow Corning Toray Co., Ltd.), and KF-995 (manufactured by Shin-Etsu Chemical Co., Ltd.). Commercially available methyl trimethicone products include Silicone TMF-1.5 (manufactured by Shin-Etsu Chemical Co., Ltd.). Commercially available decamethyltetrasiloxane products include KF-96L-1.5CS (manufactured by Shin-Etsu Chemical Co., Ltd.). Commercially available ethyltrisiloxane products include SILSOFTETS (manufactured by Momentive Performance Materials Japan LLC). Commercially available volatile methylpolysiloxane products include KF-96L-2CS (manufactured by Shin-Etsu Chemical Co., Ltd.).

[0107] Examples of non-volatile oils include non-volatile hydrocarbon oils such as light liquid paraffin, liquid paraffin, heavy liquid isoparaffin, and squalane; non-volatile silicone oils such as non-volatile dimethylpolysiloxane and non-volatile methylphenylpolysiloxane; non-volatile fatty acid ester oils such as cetyl 2-ethylhexanoate, isononyl isononanoate, isotridecyl isononanoate, isopropyl myristate, isopropyl palmitate, 2-ethylhexyl palmitate, 2-ethylhexyl stearate, and stearyl stearate; and C12-15 alkyl benzoates. Examples of non-volatile fatty acid ester oils that may be used include fatty acid triglycerides such as glyceryl tri(caprylate / caprate) and glyceryl tri(2-ethylhexanoate); esters of fatty acids and neopentyl glycol such as neopentyl glycol dicaprate and neopentyl glycol diethylhexanoate; and polyhydric alcohol fatty acid ester oils. Commercially available liquid paraffin products include Parleam 4 (manufactured by NOF Corporation). Commercially available non-volatile dimethylpolysiloxane products include KF-96A-10CS (manufactured by Shin-Etsu Chemical Co., Ltd.). Commercially available isopropyl palmitate products include Exepar IPP (manufactured by Kao Corporation). Commercially available alkyl benzoate (C12-15) products include FINSOLV TN (manufactured by Innospec Active Chemicals). Commercially available neopentyl glycol dicaprate products include Estemol N-01 (manufactured by Nisshin Oillio Group, Ltd.).

[0108] The content of the other liquid oil in the sunscreen cosmetic of the present invention is preferably from 0.5% by mass to 80% by mass, more preferably from 1% by mass to 70% by mass, even more preferably from 5% by mass to 60% by mass, and particularly preferably from 5% by mass to 50% by mass.

[0109] The sunscreen cosmetic of the present invention may be in the form of a non-solid such as a liquid, emulsion, cream, paste, or gel, with liquid, emulsion, or cream being preferred. Furthermore, the sunscreen cosmetic of the present invention is preferably an emulsion cosmetic. The emulsion type is not particularly limited, and specific examples include oil-in-water and water-in-oil types. Even in the case of an oil-in-water type, the sunscreen cosmetic of the present invention has excellent abrasion resistance and provides UV protection when the coating film is rubbed.

[0110] The sunscreen cosmetic of the present invention can be used as a sunscreen by applying it to the skin (preferably the skin excluding the scalp, more preferably the face, body, hands, feet, etc.). The method of use is not particularly limited, but application by hand or with an applicator is preferred. The sunscreen cosmetic of the present invention can be produced according to conventional methods. The sunscreen cosmetic of the present invention has good skin comfort and excellent abrasion resistance, and also has excellent UV protection effect when the coating film is rubbed.

[0111] In relation to the above-described embodiment, the present invention further discloses the following sunscreen cosmetic etc.: <1> A sunscreen cosmetic containing the following components (A), (B), and (C): (A) 0.05 to 1.5 mass% of a wax having a melting point of 55°C or higher, (B) a (meth)acrylic silicone resin, and (C) 2.5 to 45 mass% of an ultraviolet screening agent.

[0112] <2> The sunscreen cosmetic according to <1>, wherein the melting point of the wax of component (A) is preferably 57.5° C. or higher, more preferably 60° C. or higher, and preferably 140° C. or lower, more preferably 125° C. or lower, and particularly preferably 110° C. or lower. <3> The sunscreen cosmetic according to <1> or <2>, wherein the wax of component (A) is preferably one or more waxes selected from hydrocarbon waxes and silicone waxes, more preferably a combination of a hydrocarbon wax and a silicone wax, or a silicone wax, and particularly preferably a combination of a hydrocarbon wax and a silicone wax.

[0113] <4> The sunscreen cosmetic according to any one of <1> to <3>, wherein the hydrocarbon wax is preferably at least one selected from mineral hydrocarbon waxes, petroleum hydrocarbon waxes, and synthetic hydrocarbon waxes, more preferably at least one selected from ozokerite, ceresin wax, paraffin wax, microcrystalline wax, Fischer-Tropsch wax, polyethylene wax, and α-olefins having 28 or more carbon atoms, even more preferably at least one selected from ceresin wax, paraffin wax, microcrystalline wax, and synthetic hydrocarbon waxes, and particularly preferably at least one selected from ceresin wax and synthetic hydrocarbon waxes. <5> The sunscreen cosmetic according to any one of <1> to <4>, wherein the silicone wax is preferably an alkyl-modified silicone wax, more preferably at least one selected from alkyl methicone wax, alkyl dimethicone wax, and silsesquioxane resin wax, even more preferably at least one selected from alkyl methicone wax and silsesquioxane resin wax, and particularly preferably alkyl methicone wax.

[0114] <6> The sunscreen cosmetic according to any one of <1> to <5>, wherein the content of component (A) in the sunscreen cosmetic of the present invention is preferably 0.075% by mass or more, more preferably 0.1% by mass or more, and preferably 1.25% by mass or less, more preferably 1% by mass or less, in the sunscreen cosmetic of the present invention. <7> The sunscreen cosmetic according to any one of <1> to <5>, wherein the content of component (A) in the sunscreen cosmetic of the present invention is preferably 0.075 to 1.25% by mass, more preferably 0.1 to 1% by mass.

[0115] <8> The sunscreen cosmetic according to any one of <1> to <7>, wherein component (B) is preferably at least one selected from the group consisting of a (meth)acrylic polymer having a dendrimer-type siloxane structure in a side chain and a (meth)acrylic-silicone graft copolymer, and more preferably a (meth)acrylic polymer having a dendrimer-type siloxane structure in a side chain. <9> The sunscreen cosmetic according to <8>, wherein the (meth)acrylic polymer having a dendrimer-type siloxane structure in a side chain is preferably a (meth)acrylic polymer having a structural unit represented by formula (1) below, more preferably the dendrimer-type siloxane structure represented by D in formula (1) below is represented by formula (2) below, and particularly preferably an (acrylates / polytrimethylsiloxy methacrylate) copolymer.

[0116]

[0117] [In formula (1), R 1 represents a hydrogen atom or a methyl group, R 2 represents an alkanediyl group having 1 to 10 carbon atoms, and D represents a dendrimer-type siloxane structure.

[0118]

[0119] [In formula (2), R 3 represents an alkyl group or an aryl group having 1 to 10 carbon atoms; X 1 represents a silylalkyl group represented by the following formula (3) in which i=1, and * represents a bond.

[0120]

[0121] [In formula (3), R 3 has the same meaning as above, R 4 represents an alkanediyl group having 2 to 10 carbon atoms, and R 5 represents an alkyl group having 1 to 10 carbon atoms, and X i+1 represents a hydrogen atom, an alkyl group having 1 to 10 carbon atoms, an aryl group, or X i represents a silyl alkyl group similar to that represented by a i represents an integer of 0 to 3, and * represents a bond.

[0122] <10> The sunscreen cosmetic according to <8>, wherein the (meth)acrylic-silicone graft copolymer is preferably at least one selected from the group consisting of (acrylates / dimethicone) copolymer, (acrylates / ethylhexyl acrylate / dimethicone methacrylate) copolymer, (acrylates / stearyl acrylate / dimethicone methacrylate) copolymer, and (acrylates / behenyl acrylate / dimethicone methacrylate) copolymer.

[0123] <11> The sunscreen cosmetic according to any one of <1> to <10>, wherein the content of component (B) in the sunscreen cosmetic of the present invention is preferably 0.01% by mass or more, more preferably 0.05% by mass or more, even more preferably 0.1% by mass or more, particularly preferably 0.2% by mass or more, and preferably 10% by mass or less, more preferably 6% by mass or less, even more preferably 3% by mass or less, and particularly preferably 1.5% by mass or less. <12> The sunscreen cosmetic according to any one of <1> to <10>, wherein the content of component (B) in the sunscreen cosmetic of the present invention is preferably 0.01% by mass or more and 10% by mass or less, more preferably 0.05% by mass or more and 6% by mass or less, even more preferably 0.1% by mass or more and 3% by mass or less, even more preferably 0.1% by mass or more and 1.5% by mass or less, and particularly preferably 0.2% by mass or more and 1.5% by mass or less.

[0124] <13> The sunscreen cosmetic according to any one of <1> to <12>, wherein the content mass ratio of component (A) to component (B) [(A) / (B)] is preferably 0.01 or more, more preferably 0.05 or more, even more preferably 0.1 or more, still more preferably 0.4 or more, particularly preferably 0.55 or more, and is preferably 10 or less, more preferably 5 or less, even more preferably 2.5 or less, and particularly preferably 1.5 or less. <14> The sunscreen cosmetic according to any one of <1> to <12>, wherein the content mass ratio of component (A) to component (B) [(A) / (B)] is preferably 0.01 or more and 10 or less, more preferably 0.05 or more and 5 or less, even more preferably 0.1 or more and 2.5 or less, still more preferably 0.4 or more and 1.5 or less, and particularly preferably 0.55 or more and 1.5 or less.

[0125] <15> The sunscreen cosmetic according to any one of <1> to <14>, wherein component (C) is preferably one or more selected from a hydrophobized UV scattering agent and an UV absorber. <16> The sunscreen cosmetic according to <15>, wherein the hydrophobized UV scattering agent is preferably a hydrophobized fine particle metal oxide. <17> The sunscreen cosmetic according to <16>, wherein the fine particle metal oxide is preferably one or more fine particle metal oxides selected from zinc oxide, titanium oxide, cerium oxide, iron oxide, and chromium oxide, more preferably one or more fine particle metal oxides selected from zinc oxide, titanium oxide, and cerium oxide, even more preferably one or more fine particle metal oxides selected from zinc oxide and titanium oxide, and particularly preferably fine particle zinc oxide. <18> The sunscreen cosmetic according to any one of <15> to <17>, wherein the hydrophobization treatment is preferably one or more selected from treatment with a fluorine compound, silicone treatment, silicone resin treatment, pendant treatment, treatment with a silane coupling agent, treatment with a titanium coupling agent, treatment with an oil, treatment with an N-acylated lysine, treatment with polyacrylic acid, treatment with a metal soap, treatment with an amino acid, treatment with an inorganic compound, plasma treatment, mechanochemical treatment, treatment with a silane compound, and treatment with a silazane compound, and more preferably one or more selected from treatment with a silicone or silicone resin, treatment with a silane compound or a silazane compound, and treatment with a metal soap.

[0126] <19> The sunscreen cosmetic according to any one of <15> to <18>, wherein the UV absorber is preferably an organic UV absorber, more preferably at least one selected from benzoic acid UV absorbers, anthranilic acid UV absorbers, salicylic acid UV absorbers, cinnamic acid UV absorbers, benzophenone UV absorbers, triazine UV absorbers, and silicone UV absorbers, and even more preferably at least one selected from cinnamic acid UV absorbers and triazine UV absorbers.

[0127] <20> The sunscreen cosmetic according to any one of <1> to <19>, wherein the content of component (C) in the sunscreen cosmetic of the present invention is preferably 5% by mass or more, more preferably 7% by mass or more, and particularly preferably 10% by mass or more, and is preferably 40% by mass or less, more preferably 35% by mass or less, and particularly preferably 30% by mass or less, in the sunscreen cosmetic of the present invention. <21> The sunscreen cosmetic according to any one of <1> to <19>, wherein the content of component (C) in the sunscreen cosmetic of the present invention is preferably 5% by mass or more and 40% by mass or less, more preferably 7% by mass or more and 35% by mass or less, and particularly preferably 10% by mass or more and 30% by mass or less.

[0128] <22> The sunscreen cosmetic according to any one of <1> to <21>, wherein the content mass ratio of component (A) to component (C) [(A) / (C)] is preferably 0.0005 or more, more preferably 0.001 or more, and preferably 1 or less, more preferably 0.7 or less, even more preferably 0.5 or less, and particularly preferably 0.3 or less. <23> The sunscreen cosmetic according to any one of <1> to <22>, wherein the content mass ratio of component (B) to component (C) [(B) / (C)] is preferably 0.0005 or more, more preferably 0.001 or more, and particularly preferably 0.004 or more, and preferably 1.5 or less, more preferably 0.5 or less, even more preferably 0.1 or less, and particularly preferably 0.05 or less.

[0129] <24> The sunscreen cosmetic according to any one of <1> to <23>, further comprising (D) a silicone-based film-forming agent. <25> The sunscreen cosmetic according to <24>, wherein component (D) is preferably one or more selected from poly(N-acylalkyleneimine)-modified silicone, polyalkylsilsesquioxane, trimethylsiloxysilicate, and (trimethylsiloxysilicate / dimethiconol) crosspolymer, more preferably one or more selected from poly(N-acylalkyleneimine)-modified silicone and polyalkylsilsesquioxane, and particularly preferably poly(N-acylalkyleneimine)-modified silicone. <26> The sunscreen cosmetic according to <25>, wherein the poly(N-acylalkyleneimine)-modified silicone is an organopolysiloxane formed by bonding, via an alkylene group containing a heteroatom, poly(N-acylalkyleneimine) segments composed of repeating units represented by the following general formula (9) to at least two silicon atoms of organopolysiloxane segments constituting the main chain, in which the poly(N-acylalkyleneimine) segments have a number-average molecular weight of 500 to 4000, and the organopolysiloxane segments constituting the main chain have a weight-average molecular weight of 10000 to 200000.

[0130]

[0131] [In formula (9), R 41 represents a hydrogen atom, an alkyl group having 1 to 22 carbon atoms, an aralkyl group, or an aryl group, and t represents 2 or 3.

[0132] <27> The polyalkylsilsesquioxane is preferably R 51 SiO 1.5 Units: 50 to 99 mol% and R 52 3SiO 0.5 Unit: silicone resin containing 1 to 50 mol% (wherein R 51 and R 52and each independently represent a substituted or unsubstituted monovalent hydrocarbon group), more preferably at least one selected from polymethylsilsesquioxane and polypropylsilsesquioxane, and particularly preferably polypropylsilsesquioxane.

[0133] <28> The sunscreen cosmetic according to any one of <24> to <27>, wherein the content of component (D) in the sunscreen cosmetic of the present invention is preferably 0.0001% by mass or more, more preferably 0.0005% by mass or more, even more preferably 0.001% by mass or more, particularly preferably 0.005% by mass or more, and preferably 5% by mass or less, more preferably 1% by mass or less, even more preferably 0.5% by mass or less, and particularly preferably 0.2% by mass or less. <29> The sunscreen cosmetic according to any one of <24> to <27>, wherein the content of component (D) in the sunscreen cosmetic of the present invention is preferably 0.0001% by mass or more and 5% by mass or less, more preferably 0.0005% by mass or more and 1% by mass or less, even more preferably 0.001% by mass or more and 0.5% by mass or less, and particularly preferably 0.005% by mass or more and 0.2% by mass or less.

[0134] <30> The sunscreen cosmetic according to any one of <24> to <29>, wherein the content mass ratio of component (D) to component (C) [(D) / (C)] is preferably at least 0.00001, more preferably at least 0.0001, and particularly preferably at least 0.001; and is preferably at most 1, more preferably at most 0.1, and particularly preferably at most 0.05.

[0135] <31> The sunscreen cosmetic according to any one of <1> to <30>, further comprising one or more selected from water, a liquid oil other than an organic UV absorber that is liquid at 25°C under 1 atmosphere, a surfactant, a powder other than a hydrophobized UV scattering agent, waxes other than the above, a water-soluble polymer, a monohydric alcohol, a polyhydric alcohol, a chelating agent, a preservative, a fragrance, a pH adjuster, a moisturizer, a cooling agent, and a conditioning agent. <32> The sunscreen cosmetic according to <31>, wherein the water content in the sunscreen cosmetic of the present invention is preferably from 5 to 90% by mass, more preferably from 7 to 80% by mass, even more preferably from 10 to 70% by mass, and particularly preferably from 20 to 70% by mass. <33> The sunscreen cosmetic according to <31> or <32>, wherein the content of the liquid oil other than the organic UV absorber that is liquid at 25°C under 1 atmospheric pressure in the sunscreen cosmetic of the present invention is preferably from 0.5% by mass to 80% by mass, more preferably from 1% by mass to 70% by mass, even more preferably from 5% by mass to 60% by mass, and particularly preferably from 5% by mass to 50% by mass.

[0136] <34> The sunscreen cosmetic according to any one of <1> to <33>, which is preferably in a non-solid form, more preferably in a liquid, emulsion, cream, paste or gel form, and particularly preferably in a liquid, emulsion or cream form. <35> The sunscreen cosmetic according to any one of <1> to <34>, which is preferably an emulsion cosmetic, more preferably an oil-in-water emulsion cosmetic or a water-in-oil emulsion cosmetic, and particularly preferably an oil-in-water emulsion cosmetic.

[0137] The present invention will be described in detail below with reference to examples, but the present invention is not limited to these examples. In these examples, various measurements and evaluations were carried out by the following methods.

[0138] Evaluation Method (1) Usability (Good Skin Fit) Ten expert panelists conducted a sensory evaluation of skin fit. The evaluation criteria are shown below. "Good skin fit" refers to a feeling of no slippage upon application, and no stickiness or greasiness after a certain amount of time has passed since application and the skin condition has settled. (Evaluation Criteria for Usability) AA: Nine or more panelists recognized that there was no slippage upon application, and no stickiness or greasiness after application. A: Eight panelists recognized that there was no slippage upon application, and no stickiness or greasiness after application. B+: Five to seven panelists recognized that there was no slippage upon application, and no stickiness or greasiness after application. B-: Three to four panelists recognized that there was no slippage upon application, and no stickiness or greasiness after application. C: Two or less panelists recognized that there was no slippery feeling upon application and no slimy or sticky feeling after application.

[0139] (2) UV protection effect, abrasion resistance PMMA plate, 1.3 mg / cm 2 After applying each cosmetic composition evenly so that the above-mentioned thickness was achieved, the composition was allowed to dry naturally for 15 minutes, and the SPF was measured using an SPF analyzer (Labsphere UV-2000S, Optometrics) (SPF before rubbing). 2 A 100g load was applied to the terminal with the cotton cloth attached, and the cosmetic-applied portion of the PMMA plate was rubbed. The SPF after rubbing was measured using the SPF analyzer (SPF after rubbing), and the SPF residual rate was calculated using the following formula to evaluate the rub resistance. The higher the SPF residual rate value, the higher the rub resistance. (SPF residual rate (%)) = {(SPF after rubbing) / (SPF before rubbing)} x 100

[0140] (Oil-in-water emulsion cosmetics of Examples 1 to 19 and Comparative Examples 1 to 4) The oil-in-water emulsion cosmetics of Examples 1 to 19 and Comparative Examples 1 to 4 were produced by conventional methods according to the formulations shown in Tables 1 to 4, and evaluated for usability (skin comfort), UV protection effect, and abrasion resistance. The results are shown in Tables 1 to 4.

[0141]

[0142]

[0143]

[0144]

[0145] The symbols in the table indicate the following: * 1: AMS-C30 Cosmetic Wax (melting point: 73 to 77 ° C, manufactured by Toray Dow Corning Co., Ltd.); a mixture of 54% by mass of alkyl (C30-45) methicone and 46% by mass of olefin (C30-45) * 2: SW-8005 C30 Resin Wax (melting point: 63 to 71 ° C, manufactured by Toray Dow Corning Co., Ltd.) * 3: Paraffin Wax 155 (melting point: 69 ° C, manufactured by Nippon Seiro Co., Ltd.) * 4: Paraffin Wax HNP-9 (melting point: 75 ° C, manufactured by Nippon Seiro Co., Ltd.) * 5: Lip Wax A-4 (melting point: 92 to 104 ° C, manufactured by Nippon Natural Products Co., Ltd.) * 6: Multiwax W-445 S (melting point: 76.7 to 82.4 ° C, manufactured by SONNEBORN) * 7: Ceresin Wax SP-1020P (melting point: 73.3 to 76.1 ° C., manufactured by STRAHL & PITSCH) * 8: 2503 COSMETIC WAX (melting point: 28 to 35 ° C., manufactured by Dow Corning Toray Co., Ltd.) * 9: (Acrylates / polytrimethylsiloxy methacrylate) copolymer FA 4003 DM (manufactured by Dow Corning Toray Co., Ltd.) * 10: (Acrylates / dimethicone) copolymer KP-545 (manufactured by Shin-Etsu Chemical Co., Ltd.) * 11: Prepared according to the description of Synthesis Example 1 of JP 2015-168663 A * 12: Polypropylsilsesquioxane 670 Fluid (manufactured by Dow Corning Toray Co., Ltd.)

[0146] (Example 20: Water-in-oil emulsion cosmetic) The water-in-oil emulsion cosmetic of Example 20 was produced by a conventional method according to the formulation shown below, and the feel during use (skin comfort), UV protection effect, and abrasion resistance were evaluated. The results are shown in Table 5.

[0147]

Claims

1. Sunscreen cosmetics containing the following components (A), (B), and (C): (A) a texamethyl chloride with a melting point of 55°C or higher in an amount of 0.05 to 1.5% by mass; (B) a silicone resin with a (methyl)acryl base; and (C) a UV filter in an amount of 2.5 to 45% by mass.

2. Sunscreen cosmetics under Reputation 1, where (A) the wax is one or more selected from the group of hydrocarbon-based waxes and silicone-based waxes.

3. Sunscreen cosmetics under Reputation 1 or 2, where component (B) is one or more selected from the group of (methyl)acryl-based polymers with a side-chain silicone-crameric morphology and (methyl)acryl-silicone-based graft copolymers.

4. Which of the following sunscreen cosmetics under claims 1 through 3, where the composition of component (B) is between 0.01% mass and 10% mass compared to sunscreen cosmetics 5. Which of the following sunscreen cosmetics under claims 1 through 4, where the composition of component (B) is between 0.1% mass and 3% mass compared to sunscreen cosmetics 6.Sunscreen cosmetics under any of the claims 1 to 5, which include (D) a silicone-based film-forming agent; 7. Sunscreen cosmetics under claim 6, where (D) a silicone-based film-forming agent is a poly(N-acyl alkyleneimine) modified silicone; 8. Sunscreen cosmetics under any of the claims 1 to 7, which are emulsion cosmetics; 9. Sunscreen cosmetics under any of the claims 1 to 8, which are oil-in-water emulsion cosmetics.