US 11,696,886 B2
Cosmetic
Daiki Arai, Yokohama (JP); Hideki Shimizu, Yokohama (JP); and Tetsuro Yonezawa, Yokohama (JP)
Assigned to SHISEIDO COMPANY, LTD., Tokyo (JP)
Appl. No. 16/617,238
Filed by SHISEIDO COMPANY, LTD., Tokyo (JP)
PCT Filed May 30, 2018, PCT No. PCT/JP2018/020802
§ 371(c)(1), (2) Date Nov. 26, 2019,
PCT Pub. No. WO2018/221606, PCT Pub. Date Dec. 6, 2018.
Claims priority of application No. 2017-108469 (JP), filed on May 31, 2017.
Prior Publication US 2021/0128445 A1, May 6, 2021
Int. Cl. A61K 8/06 (2006.01); A61K 8/86 (2006.01); A61Q 17/04 (2006.01); A61K 8/81 (2006.01); A61K 8/34 (2006.01)
CPC A61K 8/8164 (2013.01) [A61K 8/062 (2013.01); A61K 8/342 (2013.01); A61K 8/345 (2013.01); A61K 8/8147 (2013.01); A61K 8/8188 (2013.01); A61K 8/86 (2013.01); A61Q 17/04 (2013.01); A61K 2800/522 (2013.01); A61K 2800/591 (2013.01)] 3 Claims
 
1. An oil in water emulsion cosmetic, comprising:
(A) 0.3% to 1.0% by mass, relative to the mass of the cosmetic, of one or more selected from the group consisting of acrylates/steareth-20 methacrylate copolymer, acrylates/steareth-25 methacrylate copolymer, acrylates/steareth-20 methacrylate crosspolymer and ammonium acryloyldimethyltaurate/beheneth-25 methacrylate crosspolymer;
(B) 1.0 to 30% by mass, relative to the mass of the cosmetic, of an ultraviolet protectant including an ultraviolet scattering agent;
(C) 0.3% to 2.0% by mass, relative to the mass of the cosmetic, of a hydrophilic non-ionic surfactant having an HLB of 12.5 or higher which is one or more selected from the group consisting of polyoxyethylene (10-50) behenyl ether, polyoxyethylene (20-60) sorbitan monostearates, polyoxyethylene (10-50) polyoxypropylene (2-30) cetyl ethers and polyoxyethylene (20-100) hydrogenated castor oils;
(D) 0.2% to 3.0% by mass, relative to the mass of the cosmetic, of a higher alcohol; and
(E) water;
wherein the cosmetic comprises an aggregate having a lamellar liquid-crystal structure which is formed by the (C) non-ionic surfactant, the (D) higher alcohol and the (E) water,
wherein the ultraviolet scattering agent is present in the oil phase,
wherein the molar ratio of non-ionic surfactant to higher alcohol, (C)/(D), is 0.1 to 0.5, and
wherein the cosmetic maintains a bavarois-like texture and form.