Sunscreen cosmetics

Abstract

To provide a sunscreen cosmetic which provides a fresh feeling of use by suppressing squeakiness caused by an ultraviolet scattering agent, hardly causes makeup breakage due to sebum, provides an even finish even when reapplied to the skin rich in sebum and improves the ultraviolet protection effect.SOLUTION: There is provided a sunscreen cosmetic comprising the following components (A), (B), (C) and (D). (A) 0.1 to 10 mass% of an alkylene oxide derivative represented by the following formula (1) (wherein, AO represents an oxyalkylene group having 3 to 4 carbon atoms, EO represents an oxyethylene group, a represents an addition molar number of AO, b represents an addition molar number of EO, a represents a number of 0 to 50, b represents a number of 1 to 50, a+b≥10 and 0≤a / b≤2), (B) 0.1 to 30 mass% of an ultraviolet scattering agent, (C) 0.1 to 15 mass% of a di- to tetra-valent polyhydric alcohol having 3 to 6 carbon atoms, (D) 0.1 to 10 mass% of an oil absorbing powder which is a cross-linked hydrocarbon polymer or a cross-linked silicone polymer.SELECTED DRAWING: None

Description

[Technical Field]

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

[0002] When UV rays hit the skin, they can cause erythema and blisters and promote melanin production. Furthermore, recent reports have shown that UV rays also reduce skin elasticity and promote wrinkles. The various adverse effects of UV rays on the skin are now widely recognized as photoaging. Against this backdrop, sunscreen cosmetics have become popular for daily use by people of all ages and genders, not only for aesthetic reasons but also for maintaining health. Because sunscreen cosmetics are used for extended periods of time and require frequent reapplication, they must offer high UV protection, a refreshing feel, a non-sticky feel, and consistent application. While UV scattering agents and UV absorbers are used to provide sunscreen protection, "non-chemical" products containing only UV scattering agents, which are gentle on the skin, have become increasingly popular in recent years. However, non-chemical formulations lacking UV absorbers often struggle to suppress the harshness caused by UV scattering agents or increase sun protection factor (SPF).

[0003] Patent Document 1 discloses an oil-in-water emulsion cosmetic that has a refreshing feel when used, made by using hydrophobically modified alkyl cellulose, oil, an ultraviolet scattering agent, and an aqueous phase thickener with low salt tolerance. Patent Document 2 discloses a sunscreen cosmetic that spreads well and leaves little white cast, made by combining metal oxide and palm oil. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2015-120682 [Patent Document 2] Japanese Patent Application Laid-Open No. 2016-98178 Summary of the Invention [Problem to be solved by the invention]

[0005] In recent years, wearing masks as a measure against infectious diseases has become more common. When wearing a mask outdoors, the degree of sunburn varies depending on whether or not the mask is worn, resulting in a condition known as "mask tan." To prevent this, it is particularly important to apply sunscreen evenly to the face. Meanwhile, to prevent heatstroke caused by wearing a mask, masks must be removed in high-temperature and high-humidity situations, and masks are often worn and removed more frequently, especially outdoors. Frequent mask removal and reapplication can cause sunscreen to be wiped off unevenly due to friction, making sunscreen more necessary. In particularly hot and humid situations, the increased temperature and humidity inside the mask can increase sebum production, causing the applied sunscreen to lift or resulting in uneven application of multiple layers of sunscreen.

[0006] To provide a sunscreen cosmetic which gives a fresh feeling of use by suppressing the squeaky feeling caused by an ultraviolet scattering agent, is less likely to cause the sunscreen makeup to come off due to sebum, gives an even finish even when reapplied to oily skin, and has improved ultraviolet protection effect. [Means for solving the problem]

[0007] That is, the present invention provides a sunscreen cosmetic having the following characteristics:

[0008] <1> A sunscreen cosmetic comprising the following (A), (B), (C), and (D): (A) 0.1 to 10 mass% of an alkylene oxide derivative represented by the following formula (1): [ka] (In formula (1), AO represents an oxyalkylene group having 3 to 4 carbon atoms, EO represents an oxyethylene group, a represents the number of moles of the oxyalkylene group having 3 to 4 carbon atoms added, b represents the number of moles of the oxyethylene group added, a represents a number from 0 to 50, b represents a number from 1 to 50, a+b≧10, and 0≦a / b≦2. When the alkylene oxide derivative represented by formula (1) has both the oxyalkylene group having 3 to 4 carbon atoms and the oxyethylene group, the oxyalkylene group having 3 to 4 carbon atoms and the oxyethylene group are added in a random or block manner, and the order of arrangement does not matter in the case of block addition.) (B) UV scattering agent 0.1 to 30% by mass (C) 0.1 to 15 mass% of dihydric to tetrahydric polyhydric alcohol having 3 to 6 carbon atoms (D) 0.1 to 10% by mass of at least one oil-absorbing powder selected from the group consisting of crosslinked hydrocarbon polymers and crosslinked silicone polymers [Effects of the Invention]

[0009] The sunscreen cosmetic of the present invention suppresses the squeaky feeling caused by the ultraviolet scattering agent, gives a fresh feeling when used, is less likely to cause the sunscreen makeup to come off due to sebum, and further provides an even finish even when reapplied to oily skin, improving the ultraviolet protection effect. DETAILED DESCRIPTION OF THE INVENTION

[0010] Hereinafter, an embodiment of the present invention will be described.

[0011] In this specification, numerical ranges defined using the symbol "to" are inclusive of the numerical values ​​at both ends (upper and lower limits) of the symbol "to." For example, "2 to 5" means 2 or more and 5 or less.

[0012] One embodiment of the present invention relates to a sunscreen cosmetic comprising (A) an alkylene oxide derivative, (B) an ultraviolet scattering agent, (C) a polyhydric alcohol, and (D) an oil-absorbing powder, as shown below. Each component will be described below.

[0013] (A: alkylene oxide derivative) The component (A) is an alkylene oxide derivative represented by the formula (1). [ka]

[0014] In formula (1), AO represents an oxyalkylene group having 3 to 4 carbon atoms, EO represents an oxyethylene group, a represents the number of moles of the oxyalkylene group having 3 to 4 carbon atoms added, b represents the number of moles of the oxyethylene group added, a represents a number from 0 to 50, b represents a number from 1 to 50, a+b≧10, and 0≦a / b≦2. When the alkylene oxide derivative represented by formula (1) has both the oxyalkylene group having 3 to 4 carbon atoms and the oxyethylene group, the oxyalkylene group having 3 to 4 carbon atoms and the oxyethylene group are added in a random or block manner, and in the case of block addition, the order of arrangement does not matter.

[0015] By setting a to 50 or less, the squeaking of the UV scattering agent is suppressed, a fresh feel is produced to the touch, and the SPF-enhancing effect can be improved. Therefore, a is set to 0 to 50, preferably 0 to 40, and most preferably 0 to 30.

[0016] By setting b to 1 or more, it is possible to prevent the sunscreen makeup from coming off due to sebum, and to prevent unevenness when reapplying to oily skin, thereby improving the SPF improvement effect. Furthermore, by setting b to 50 or less, it is possible to improve the freshness. Therefore, b is set to 1 to 50, with 10 to 40 being preferable, and 10 to 30 being most preferable.

[0017] By making a+b 10 or more, it is possible to prevent the sunscreen makeup from coming off due to sebum, and to prevent unevenness when reapplying to oily skin. It also improves the SPF improvement effect. Therefore, a+b is set to 10 or more, and 20 or more is most preferable. There is no particular upper limit for a+b, but it is preferably 50 or less.

[0018] When a is greater than 0, the oxyalkylene groups and oxyethylene groups having 3 to 4 carbon atoms are added randomly or in a block form. When added in a block form, the order of arrangement is not important. When a is greater than 0, the oxyalkylene groups and oxyethylene groups having 3 to 4 carbon atoms are preferably added randomly.

[0019] By setting the a / b ratio to 2 or less, the squeaky feeling of the UV scattering agent is suppressed, resulting in a fresh feel to the touch, preventing the sunscreen from coming off due to sebum and preventing uneven application when reapplied to oily skin, thereby improving the SPF improvement effect. Therefore, the a / b ratio is set to 2 or less, with 1.2 or less being most preferable. The lower limit of the a / b ratio is 0, but it can be set to 0.3 or more.

[0020] Examples of the oxyalkylene group having 3 to 4 carbon atoms include an oxypropylene group and an oxybutylene group, with an oxypropylene group being the most preferred. The alkylene oxide derivative represented by formula (1) may have either an oxypropylene group or an oxybutylene group, or both. When both are present, the oxypropylene group and the oxybutylene group may be in either a random or block form. When added in a block form, the order of arrangement is not important.

[0021] Component (A) has a monoether structure in which an alkylene oxide is added to the first hydroxyl group of the three hydroxyl groups of glycerin. The monoether purity is 80% or more, preferably 90% or more, and more preferably 95% or more. There is no particular upper limit to the monoether purity, but it can be 100% or less.

[0022] Monoether purity is 1 It can be calculated from the following formula using the peak integral value obtained by H-NMR measurement.

[0023]

number

[0024] x represents the peak integral of approximately 2.4 ppm derived from the methylene groups at 1,3-positions of glycerin to which ethylene oxide has been added, when the peak integral of approximately 3.3 ppm derived from the methine group at 2-position of glycerin, which is detected only in the monoether form, is set to 1. However, if the peak integral of approximately 3.3 ppm derived from the methine group at 2-position of glycerin of the monoether form cannot be detected, the purity of the monoether form is set to 0.

[0025] The alkylene oxide derivative of the present invention represented by formula (1) can be produced by known methods. An alkylene oxide is addition-polymerized with an alkyl alcohol, for example, isopropylidene glycol in which all but the primary hydroxyl group of glycerin have been protected, in the presence of an alkali catalyst at 50 to 160°C and 0.5 MPa (gauge pressure) or less. When using two or more alkylene oxides, in the case of a random alkylene oxide, the two or more alkylene oxides are mixed together before addition polymerization. In the case of a block alkylene oxide, AO may be polymerized first, followed by EO, or EO may be polymerized first, followed by AO. Subsequently, an acid such as hydrochloric acid, phosphoric acid, or acetic acid is added to deacetalize the mixture. The excess acid is neutralized with a base such as potassium hydroxide or sodium hydroxide, and the water and neutralization salt are then removed to obtain the alkylene oxide derivative.

[0026] The concentration of the alkylene oxide derivative represented by formula (1) added is 0.1 to 10 mass % relative to the total mass of the sunscreen cosmetic, preferably 0.5 to 8 mass %, and more preferably 1 to 5 mass %.

[0027] (B: UV scattering agent) Component (B) is an ultraviolet scattering agent. An ultraviolet scattering agent refers to a substance that can reflect and scatter ultraviolet rays to protect the skin and the like from ultraviolet rays. Examples of ultraviolet scattering agent materials that can be used in the present invention include titanium oxide, zinc oxide, iron oxide, zirconium oxide, and aluminum oxide. Examples of ultraviolet scattering agents include those obtained by microparticulating these materials or composites. The ultraviolet scattering agent preferably contains one or two types selected from titanium oxide and zinc oxide.

[0028] The titanium oxide and zinc oxide used as the UV scattering agent may be the titanium oxide and zinc oxide commonly used in cosmetics. Preferably, the titanium oxide and zinc oxide have better dispersibility, for example, those that have been surface-treated, specifically hydrophobized, by a known method as needed, and can be contained in the sunscreen cosmetic.

[0029] Examples of surface treatment methods include silicone treatment with methylhydrogenpolysiloxane, methylpolysiloxane, or the like; fluorine treatment with perfluoroalkyl phosphate ester, perfluoroalcohol, or the like; amino acid treatment with N-acylglutamic acid, or the like; alkylalkoxysilane treatment with octyltriethoxysilane, octyltrimethoxysilane, or the like; lecithin treatment; metal soap treatment; fatty acid treatment; alkyl phosphate ester treatment, and the like.

[0030] The concentration of the ultraviolet scattering agent added is 0.1 to 30% by mass, preferably 1 to 28% by mass, and more preferably 5 to 25% by mass, based on the total mass of the sunscreen cosmetic.

[0031] (C: di- to tetrahydric polyhydric alcohol having 3 to 6 carbon atoms) Component (C) is a di- to tetrahydric polyhydric alcohol having 3 to 6 carbon atoms. Examples of di- to tetrahydric polyhydric alcohols having 3 to 6 carbon atoms include propylene glycol, dipropylene glycol, 1,3-butylene glycol, glycerin, diglycerin, 1,2-pentanediol, and polyethylene glycol, and these can be used alone or in combination. Preferably, propylene glycol, 1,3-butylene glycol, or glycerin is selected to provide a more refreshing feel when used.

[0032] The concentration of the di- to tetrahydric polyhydric alcohol having 3 to 6 carbon atoms added is 0.1 to 15 mass % relative to the total mass of the sunscreen cosmetic, preferably 0.5 to 12 mass %, and more preferably 1 to 10 mass %.

[0033] (D: at least one oil-absorbing powder selected from the group consisting of cross-linked hydrocarbon polymers and cross-linked silicone polymers) Component (D) is an oil-absorbing powder, and the oil-absorbing powder may be at least one type of oil-absorbing powder selected from the group consisting of cross-linked hydrocarbon polymers and cross-linked silicone polymers.

[0034] The oil-absorbing powder refers to a water-insoluble powder having an oil absorption capacity capable of absorbing 30% by mass or more of the powder's own weight of squalane at 25°C.

[0035] The oil absorption can be measured by any known method. For example, 1 g of oil-absorbing powder is placed on a glass plate, and squalane is added dropwise little by little while the mixture is kneaded with a spatula, and the end point is the time when the entire oil-absorbing powder becomes paste-like, and the amount of squalene (ml) per 1 g of oil-absorbing powder at that time is taken as the oil absorption.

[0036] Specific examples of cross-linked hydrocarbon polymers include cross-linked products of nylon, polyethylene, polyurethane, polystyrene, and the like.

[0037] Commercially available crosslinked hydrocarbon polymers include SP-500 / 10 (manufactured by Toray Industries, Inc.) and TEGOLON12-10 (manufactured by Evonik).

[0038] Examples of the crosslinked silicone polymer include dimethicone crosspolymer, (dimethicone / vinyl dimethicone) crosspolymer, (dimethicone / phenyl vinyl dimethicone) crosspolymer, (vinyl dimethicone / lauryl dimethicone) crosspolymer, (lauryl polydimethylsiloxyethyl dimethicone / bisvinyl dimethicone) crosspolymer, (vinyl dimethicone / methicone silsesquioxane) crosspolymer, (diphenyl dimethicone / vinyl diphenyl dimethicone / silsesquioxane) crosspolymer, polymethyl silsesquioxane, (methyl / phenyl) polysilsesquioxane, bis PEG-18 methyl ether dimethyl silane, polysilicone-1 crosspolymer, and polysilicone-22.

[0039] Commercially available crosslinked silicone polymers include DOWSIL BY 29-129, DOWSIL 9040 Silicone Elastomer Blend, DOWSIL 2501 Cosmetic Wax (manufactured by DOWSIL Dow-Toray Industries, Inc.), KSG-15 / 16 / 19 / 1610, KSG-18A, KSG-41 / 41A / 42 / 42A / 43 / 44, KSG-042Z / 045Z / 048Z, KSP-100 / 101 / 102 / 105, KSP-300, 441 / 411, and KMP-590 / 591 / 592 (manufactured by Shin-Etsu Chemical Co., Ltd.).

[0040] The concentration of the oil-absorbing powder added is 0.1 to 10% by mass, preferably 0.5 to 8% by mass, and more preferably 1 to 5% by mass, based on the total mass of the sunscreen cosmetic.

[0041] (Composition of sunscreen cosmetics) The sunscreen cosmetic of the present invention may be either an O / W type or a W / O type, but from the viewpoint of enhancing the effects of the present invention, an O / W type is preferred.

[0042] When the sunscreen cosmetic of the present invention is an O / W type, the content of the aqueous phase component such as water is 40 to 85% by mass relative to the sunscreen cosmetic.

[0043] Furthermore, the sunscreen cosmetic of the present invention may contain additives used in cosmetics, quasi-drugs, pharmaceuticals, etc., as needed, provided that the effects of the present invention are not impaired. For example, natural fragrances and synthetic fragrances can be added to enhance palatability. Natural fragrances are essential oils obtained by steam distillation or other methods from the flowers, stems, leaves, fruits, peels, and roots of plants, and the separated water can also be used as aromatic perfumes. Synthetic fragrances include, but are not limited to, esters, ethers, aldehydes, ketones, aromatic alcohols, and hydrocarbons. Examples of additives include oils such as hydrocarbon oils, ester oils, and silicone oils; lower alcohols (excluding component (C)) such as ethanol and isopropanol; sugars such as lactose and sucrose; anionic surfactants such as acylmethyl taurine salts, alkyl ether sulfate ester salts, and amide ether sulfate ester salts; organic or inorganic salts such as citrates, malates, and salt; acids and alkalis as pH adjusters; parabens; preservatives; extracts derived from plants and animals; vitamins; amino acids; pigments; and UV absorbers.

[0044] When the sunscreen cosmetic of the present invention contains other ingredients, the content of the other ingredients relative to the total mass of the sunscreen cosmetic is preferably 20% by mass or less, and more preferably 0.01% by mass to 15% by mass.

[0045] The sunscreen cosmetic of the present invention is formed by emulsifying an oily component and an aqueous phase component, and can be produced by a commonly used method, for example, by mixing and dissolving the oily component such as component (A) and an oil agent, and adding the mixture to an aqueous phase component such as water while stirring, and emulsifying the mixture.

[0046] The sunscreen cosmetic of the present invention can be provided in various forms according to the intended use, for example, as a milky lotion, cream, gel, etc. [Example]

[0047] The present invention will be described in detail below with reference to examples and comparative examples.

[0048] [Examples 1 to 8, Comparative Examples 1 and 2] <Synthesis Example 1: Example Compound A-1> 100 g of isopropylidene glycol and 0.5 g of potassium tert-butoxide as a catalyst were charged into an autoclave, and the air in the autoclave was replaced with dry nitrogen. The catalyst was then dissolved at 130°C with stirring. Subsequently, 866 g of ethylene oxide was added dropwise using a dropping device at 130°C and 0.2 to 0.5 MPa (gauge pressure), and the mixture was stirred for 1 hour. The reaction mixture was then removed from the autoclave, adjusted to pH 3 with hydrochloric acid, and deacetalized. The mixture was then neutralized with potassium hydroxide and treated at 100°C under reduced pressure of -0.095 MPa (gauge pressure) for 3 hours to remove the water content, followed by filtration to obtain Example Compound A-1.

[0049] <Synthesis Examples 2 to 3: Example Compounds A-2 to A-3, Comparative Example Compound A'-1> Except for changing the amounts of ethylene oxide and propylene oxide added, Example compounds A-2 to A-3 and Comparative example compound A'-1 were obtained in the same manner as in Synthesis Example 1. However, in the case of random adducts such as Example compound A-3 and Comparative example compound A'-1, ethylene oxide and propylene oxide were mixed in advance and added dropwise using a dropping device to carry out the reaction.

[0050] Furthermore, the number average molecular weights of the ethylene oxide, propylene oxide, and butylene oxide adducts were determined from the hydroxyl value obtained by hydroxyl value measurement in accordance with JIS K1557-1, and the values ​​of a and b in formula (1) were determined from the number average molecular weights. The total average number of moles of ethylene oxide and propylene oxide added for example compounds A-1 to A-3 and comparative example compound A'-1 are shown in Table 1. In Table 1, "AO" indicates the type of oxyalkylene group (AO) possessed by the alkylene oxide derivative shown in formula (1), and "PO" indicates an oxypropylene group.

[0051] [Table 1]

[0052] Components (A) to (D), component (A'), and the common component were prepared as sunscreen cosmetics in the compositions shown in the table, and evaluated by the following methods.

[0053] (1) Evaluation of usability Twenty panelists (ages 25 to 45, 10 men and 10 women) spread the resulting sunscreen cosmetics (approximately 2 g) from elbow to wrist, and after letting it dry naturally (approximately 5 minutes), evaluated the squeakiness and freshness according to the following criteria. In detail, a total score of 35 points or more by the 20 panelists was rated as "◎" (excellent), 25 to 34 points as "○" (good), 15 to 24 points as "△" (fair), and 14 points or less as "×" (poor). 2 points: If there is no squeaking and the skin feels fresh after use. 1 point: If after use, there is less creaking and you feel a slight freshness. 0 points: If there is a squeaky feeling and no freshness after use.

[0054] (2) Evaluation of sunscreen makeup breakdown due to sebum Twenty panelists (ages 25 to 45, 10 men and 10 women) spread the resulting sunscreen cosmetics (approximately 2 g) over their entire faces and allowed them to dry naturally (approximately 5 minutes). They then walked outdoors at 30°C for 5 minutes. Afterwards, the panelists were evaluated for makeup breakdown, such as smudging of the sunscreen around the nostrils and mouth, according to the following criteria. Specifically, a total score of 35 points or higher by the 20 panelists was rated as "Excellent," 25 to 34 points as "Good," 15 to 24 points as "Fair," and 14 points or lower as "Poor." 2 points: If you feel that your makeup is not coming off due to sebum. 1 point: If you feel that your makeup is coming off slightly due to sebum. 0 points: If you feel that your makeup is coming off due to sebum.

[0055] (3) Evaluation of recoating Twenty panelists (ages 25 to 45, 10 men and 10 women) spread the resulting sunscreen cosmetics (approximately 2 g) over their entire faces and allowed it to dry naturally (approximately 5 minutes). They then walked outdoors at 30°C for 5 minutes. Next, they spread another sunscreen cosmetics (approximately 1 g) over their entire faces and allowed it to dry naturally (approximately 5 minutes). The unevenness of the application was evaluated by comparing the areas around the nostrils and mouths after multiple applications, using the following criteria. Specifically, a total score of 35 points or more by the 20 panelists was evaluated as "Excellent," 25 to 34 points as "Good," 15 to 24 points as "Fair," and 14 points or less as "Poor." 2 points: If you feel that the paint is even after applying multiple coats. 1 point: If you feel that there is some unevenness in the paint after applying multiple coats. 0 points: If you feel that the paint is uneven after applying multiple coats.

[0056] (4) SPF change rate relative to blank A blank containing no alkylene oxide derivative was prepared, and each sample was applied to a PMMA plate (HELIOPLATE HD6, manufactured by Labsphere) at 2 mg / cm 2 After application, the sample was left to stand in a dark place for 20 minutes, and the SPF was measured using an SPF analyzer (UV-2000S manufactured by Labsphere). Nine points on the plate were measured, and the average value was used to calculate the SPF. ブランク Similarly, each composition of the Examples and Comparative Examples was also obtained with [SPF 試料 The rate of change in SPF relative to the blank was calculated using the following formula (2). SPF change rate relative to blank = [SPF ブランク ] / [SPF 試料 ]×100 (2)

[0057] The rate of change in SPF relative to the blank was evaluated according to the following criteria. (Evaluation criteria) ◎: Change rate 150% or more ○: 125% or more, less than 150% △: 110% or more, less than 125% ×: Less than 110%

[0058] The compositions and evaluation results of Examples 1 to 8 and Comparative Examples 1 and 2 are shown in Tables 2 and 3. The compositions shown in Tables 2 and 3 indicate the ratio (parts by mass) of each component when the total mass is 100 parts by mass. Table 4 shows the compositions of components common to sunscreen cosmetics. The compositions shown in Table 4 indicate the ratio (parts by mass) of each component when the total mass of the compositions shown in Tables 2 and 3 is 100 parts by mass.

[0059] The ingredients used in the sunscreen cosmetics are as follows: Titanium oxide: DIS-AB-10W (Sakai Chemical Industry Co., Ltd.) Zinc oxide: DIF-AB-33W (Sakai Chemical Industry Co., Ltd.) Nylon: SP-500 (manufactured by Toray Industries, Inc.) (Dimethicone / vinyl dimethicone) crosspolymer: DOWSIL BY 29-129 (manufactured by Dow Toray Co., Ltd.) (Vinyl dimethicone / methicone silsesquioxane) crosspolymer: KSP-100 (Shin-Etsu Chemical Co., Ltd.) Polymethylsilsesquioxane: KMP-591 (Shin-Etsu Chemical Co., Ltd.) Hydrogenated polyisobutene: Pearleem 4 (NOF Corporation)

[0060] In addition, some of the materials are supplied by the manufacturer as aqueous dispersions, and Tables 2 to 4 show the solid content of each.

[0061] [Table 2]

[0062] [Table 3]

[0063] [Table 4]

[0064] As is clear from Table 2, the compositions of Examples 1 to 8 had a refreshing feel with little squeakiness, were less likely to cause sunscreen makeup to come off due to sebum, provided an even finish even when applied in layers to oily skin, and had improved UV protection effects.

[0065] In contrast, as is clear from Table 3, the compositions of Comparative Examples 1 and 2 were not good in any of the following: feel when used, makeup breakdown due to sebum, unevenness when reapplied to oily skin, and improvement in UV protection effect. [Industrial Applicability]

[0066] According to the present invention, it is possible to improve the feel of sunscreen cosmetics when used, to prevent makeup from coming off, and to suppress unevenness when reapplied, and to improve SPF, thereby contributing to the development and popularization of cosmetics that are more suited to the needs of users.

Claims

[Claim 1] A sunscreen cosmetic comprising the following (A), (B), (C), and (D): (A) 0.1 to 10 mass% of an alkylene oxide derivative represented by the following formula (1): 【Chemistry 1】 (In formula (1), AO represents an oxyalkylene group having 3 to 4 carbon atoms, EO represents an oxyethylene group, a represents the number of moles of the oxyalkylene group having 3 to 4 carbon atoms added, b represents the number of moles of the oxyethylene group added, a represents a number from 0 to 50, b represents a number from 1 to 50, a+b≧10, and 0≦a / b≦2. When the alkylene oxide derivative represented by formula (1) has both the oxyalkylene group having 3 to 4 carbon atoms and the oxyethylene group, the oxyalkylene group having 3 to 4 carbon atoms and the oxyethylene group are added in a random or block manner, and in the case of block addition, the order of arrangement does not matter.) (B) UV scattering agent: 0.1 to 30% by mass (C) 0.1 to 15% by mass of dihydric, dihydric, or tetrahydric polyhydric alcohol having 3 to 6 carbon atoms (D) 0.1 to 10% by mass of at least one oil-absorbing powder selected from the group consisting of crosslinked hydrocarbon polymers and crosslinked silicone polymers

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