US 12,290,592 B2
Oily mixture composition, cosmetic, and cosmetic manufacturing method
Seiji Watae, Tokyo (JP); and Chihiro Hayakawa, Tokyo (JP)
Assigned to SHIN-ETSU CHEMICAL CO., LTD., Tokyo (JP)
Appl. No. 17/600,188
Filed by SHIN-ETSU CHEMICAL CO., LTD., Tokyo (JP)
PCT Filed Mar. 19, 2020, PCT No. PCT/JP2020/012294
§ 371(c)(1), (2) Date Sep. 30, 2021,
PCT Pub. No. WO2020/203351, PCT Pub. Date Oct. 8, 2020.
Claims priority of application No. 2019-069822 (JP), filed on Apr. 1, 2019.
Prior Publication US 2022/0175652 A1, Jun. 9, 2022
Int. Cl. A61K 8/06 (2006.01); A61K 8/02 (2006.01); A61K 8/19 (2006.01); A61K 8/29 (2006.01); A61K 8/891 (2006.01); A61Q 1/02 (2006.01); A61Q 1/06 (2006.01)
CPC A61K 8/891 (2013.01) [A61K 8/0229 (2013.01); A61K 8/062 (2013.01); A61K 8/064 (2013.01); A61K 8/19 (2013.01); A61K 8/29 (2013.01); A61Q 1/02 (2013.01); A61Q 1/06 (2013.01); A61K 2800/43 (2013.01)] 13 Claims
 
1. A cosmetic composition having an oily admixture blended therein, the oily admixture comprising
(a) a silicone surfactant having an HLB value of up to 6,
(b) an acrylic silicone graft copolymer,
(c) an oil which is liquid at 25° C., and
(d) a coloring pigment,
wherein the total amount of components (a) to (d) is 40 to 100% by weight based on the oily admixture;
wherein a blending weight ratio of component (b) to component (a) in the oily admixture, represented by (b)/(a), is from 0.046 to 3, and a blending weight ratio of the sum of components (a) and (b) to component (d) in the oily admixture, represented by {(a)+(b)}/(d), is at least 0.02;
wherein component (a) is a polyglycerin-modified silicone surfactant;
wherein component (b) is an acrylate/ethylhexyl acrylate/dimethicone methacrylate copolymer (INCI name); and
wherein component (c) is at least one oil selected from the group consisting of hydrocarbon oils, ester oils, and silicone oils.