	US 12,257,338 B2
	Compositions and methods for application over skin
Ariya Akthakul, Boston, MA (US); and Nithin Ramadurai, Wakefield, MA (US)
Assigned to Shiseido Company, Limited, Tokyo (JP)
Appl. No. 17/273,492
Filed by SHISEIDO COMPANY, LIMITED, Tokyo (JP)
PCT Filed Sep. 26, 2019, PCT No. PCT/JP2019/039031 § 371(c)(1), (2) Date Mar. 4, 2021, PCT Pub. No. WO2020/067582, PCT Pub. Date Apr. 2, 2020.
Claims priority of provisional application 62/737,652, filed on Sep. 27, 2018.
Prior Publication US 2021/0338562 A1, Nov. 4, 2021
Int. Cl. A61K 8/895 (2006.01); A61K 8/02 (2006.01); A61K 8/25 (2006.01); A61K 9/00 (2006.01); A61K 31/80 (2006.01); A61K 45/06 (2006.01); A61Q 19/00 (2006.01)

CPC A61K 8/895 (2013.01) [A61K 8/0204 (2013.01); A61K 8/25 (2013.01); A61K 9/0014 (2013.01); A61K 31/80 (2013.01); A61K 45/06 (2013.01); A61Q 19/00 (2013.01); A61K 2800/882 (2013.01); A61K 2800/95 (2013.01)]

20 Claims

1. A composition for the formation of a film over the skin of a subject, comprising:

a. a bifunctional organopolysiloxane polymer selected from a group consisting of monovinyl monophenyl monohydride dimethicone, vinylmethylsiloxane-dimethylsiloxane copolymer (hydride terminated), and monovinyl monohydride dimethicone;

b. a reinforcing constituent suitable for formation of a film on the subject's skin; and

c. an organopolysiloxane with at least two alkenyl functional groups or at least one alkynyl functional group, either at a terminal of the organopolysiloxane or at a side chain of the organopolysiloxane or both; and

wherein the bifunctional organopolysiloxane polymer is present in an amount of from about 1% to about 10% by weight of the total weight of the composition.