US 12,220,469 B2
Solid W/O cosmetic composition
Lethu Nguyen, East Windsor, NJ (US); Shoji Tajima, Yokohama (JP); and Michelle Lou, East Windsor, NJ (US)
Assigned to SHISEIDO COMPANY, LTD., Tokyo (JP)
Appl. No. 16/648,289
Filed by SHISEIDO COMPANY, LTD., Tokyo (JP)
PCT Filed Feb. 6, 2019, PCT No. PCT/JP2019/004255
§ 371(c)(1), (2) Date Mar. 18, 2020,
PCT Pub. No. WO2019/156123, PCT Pub. Date Aug. 15, 2019.
Claims priority of provisional application 62/627,454, filed on Feb. 7, 2018.
Prior Publication US 2020/0214948 A1, Jul. 9, 2020
Int. Cl. A61K 8/06 (2006.01); A61K 8/73 (2006.01); A61K 8/81 (2006.01); A61Q 1/06 (2006.01)
CPC A61K 8/064 (2013.01) [A61K 8/73 (2013.01); A61K 8/733 (2013.01); A61K 8/8117 (2013.01); A61Q 1/06 (2013.01)] 11 Claims
 
1. A solid W/O composition, comprising:
1) gelling agents consisting of:
bentonite; a hydrocarbon styrene copolymer gelling agent; and
agar; and
2) an emulsifying system comprising polyethylene glycol 12 derivative of dimethicone and polyethylene glycol 10 derivative of dimethicone,
the composition comprises an oil phase and an aqueous phase dispersed in the oil phase,
wherein the aqueous phase comprises water and the agar; and the oil phase comprises the bentonite, the hydrocarbon styrene copolymer gelling agent and at least one solvent selected from the group consisting of volatile and non-volatile hydrocarbons, volatile and non-volatile silicones, alcohols, glycols, esters, vegetable oils, and synthetic oils,
wherein the amount of the at least one solvent is from 0.1% to 25%, by mass relative to the total mass of the composition and the amount of the water is from 9% to 25%, by mass relative to the total mass of the composition,
wherein the composition further comprises at least one wax,
wherein the amount of the least one wax is from 12% to 22% by mass relative to the total mass of the composition,
wherein the amount of the bentonite is about 3 mass %, the amount of the hydrocarbon styrene copolymer gelling agent is about 7 mass %, the amount of the agar is about 0.025 mass %, the amount of the polyethylene glycol 12 derivative of dimethicone is about 0.25 mass % and the amount of the polyethylene glycol 10 derivative of dimethicone is about 1.00 mass %.