Back to results
US 8,541,009 B2Granted
Cosmetic
AssigneeKao Corporation
InventorsMasayuki Iida, Takamasa Yamamoto, Yuko Yago
Life of this patent
Estimating the term…
Abstract
A cosmetic composition contains the following components (A), (B) and (C): (A) from 0.1 to 30 wt. % of a vinyl-based polymer having a carbosiloxane dendrimer structure in a side chain thereof, (B) from 0.1 to 30 wt. % of a nonvolatile cosmetic oil, which is in a liquid form at 25° C. and has a solubility parameter of 16.5 or greater, and (C) from 0.1 to 30 wt. % of a hydrophobic powder, and a weight ratio of the component (A) to the component (B), (A)/(B), is from 0.3 to 5.
Claims9
A cosmetic composition comprising the following components (A), (B) and (C):
- (A) from 0.1 to 20 wt. % of a (meth)acrylate-based polymer having a carbosiloxane dendrimer structure in a side chain thereof, wherein the carbosiloxane dendrimer structure is a group represented by the following formula (1):
- wherein Z is a divalent organic group, p is 1, R1 is a methyl group, and X1 is a silylalkyl group which, when i=1, is represented by the following formula (3):
- wherein R1 is the same as defined above, R2 is an ethylene group, a methylethylene group, a hexylene group, a 1-methylpentylene group or a 1,4-dimethylbutylene group, R3 is an alkyl group having from 1 to 10 carbon atoms, and Xi+1 is a hydrogen atom or a methyl group, i is an integer of from 1 to 10 which represents the generation of the silylalkyl group, ai is 0, the divalent organic group as Z is the organic group represented by the following formula (2):
- wherein R9 is an ethylene group or a propylene group,
- (B) from 0.1 to 20 wt. % of a nonvolatile cosmetic oil, which is in a liquid form at 25° C. and has a solubility parameter of 16.5 to 23, and a molecular weight ranging from 250 to 2,000, and
- (C) from 1 to 25 wt. % of a hydrophobic powder,
- wherein a weight ratio of the component (A) to the component (B), (A)/(B), is from 0.3 to 5.
4 more elements
Dependencies are inferred from the claim text.