US 12,257,328 B2
Oil-based solid cosmetic
Ryuta Yuasa, Tokyo (JP); Kazuki Uchida, Kanagawa (JP); and Yusuke Akizuki, Tokyo (JP)
Assigned to JO Cosmetics Co., Ltd., Tokyo (JP)
Appl. No. 17/268,620
Filed by JO Cosmetics Co., Ltd., Tokyo (JP)
PCT Filed Aug. 6, 2019, PCT No. PCT/JP2019/031004
§ 371(c)(1), (2) Date Feb. 16, 2021,
PCT Pub. No. WO2020/039917, PCT Pub. Date Feb. 27, 2020.
Claims priority of application No. 2018-153756 (JP), filed on Aug. 18, 2018.
Prior Publication US 2021/0169756 A1, Jun. 10, 2021
Int. Cl. A61K 8/25 (2006.01); A61K 8/19 (2006.01); A61K 8/31 (2006.01); A61K 8/37 (2006.01); A61Q 1/14 (2006.01)
CPC A61K 8/25 (2013.01) [A61K 8/19 (2013.01); A61K 8/31 (2013.01); A61K 8/37 (2013.01); A61Q 1/14 (2013.01)] 2 Claims
 
1. An oil-based solid cosmetic, consisting of:
(A) 3 to 15% by mass of a solid oil component having a melting point of 50 to 120° C., and comprising at least one selected from the group consisting of polyethylene wax, a Fischer-Tropsch wax, and a candelilla wax;
(B) 60 to 90% by mass of at least one selected from the group consisting of triethylhexanoin; diisostearyl malate; diglyceryl triisostearate; decaglyceryl decaisostearate; oligomeric ester of dimer acid and dimer diol; pentaerythrityl tetraisostearate; diglyceryl tetraisostearate; cetyl isooctanoate; isopropyl myristate; isopropyl palmitate; octyldodecyl myristate; neopentyl glycol dioctanoate; cholesterol fatty acid ester; and caprylic/capric triglyceride and dicaprylyl carbonate;
(C) 7 to 25% by mass of a nonionic surfactant having an HLB value of 5 to 13, and comprising polyoxyethylene fatty acid glyceryl and/or fatty acid polyoxyethylene alkyl ether;
(D) 0.2 to 15% by mass of a powder comprising a clay mineral having a volume average particle diameter of 2 to 100 μm or a carbon powder having a volume average particle diameter of 2 to 100 μm;
(E) 0.2 to 3% by mass of a fumed silica having a primary particle diameter of 20 nm or less and a specific surface area of 100 to 400 m2/g;
(F) water,
(G) tocopherol, and
(H) phenoxyethanol,
wherein the ratio by mass of the component (E) to the component (D) is 0.05 to 3, wherein the oil-based solid cosmetic is a cleansing cosmetic.