Patent ID: 8399524

Claim:
An acyl acidic amino acid monosilicone monosterol ester of formula (I): (I): wherein R 1 represents a linear or branched hydrocarbon group of 1 to 30 carbon atoms, q is 1 or 2, and one of X and Y is a sterol ester residue, and the other is a silicone ester residue of formula (II): wherein A and A 2 are each selected from linear or branched alkylene groups of 1 to 12 carbon atoms; 1 is an integer of 0 to 2; m is an integer of 0 to 10, and R 2 is a group represented by formula (IV) or (V): wherein R 3 , R 4 , R 5 , R 6 , and R 7 each independently represent a hydrogen atom, a hydroxyl group, a substituted or unsubstituted alkoxy group of 1 to 30 carbon atoms, a substituted or unsubstituted alkyl group of 1 to 50 carbon atoms, an aralkyl group of 7 to 21 carbon atoms, or a substituted or unsubstituted aryl group of 6 to 20 carbon atoms, and a represents a number of from 2 to 10,000; wherein R 8 , R 9 , R 10 , R 11 , R 12 , R 13 , and R 14 each independently represent a hydrogen atom, a hydroxyl group, a substituted or unsubstituted alkoxy group of 1 to 30 carbon atoms, a substituted or unsubstituted alkyl group of 1 to 50 carbon atoms, an aralkyl group of 7 to 21 carbon atoms, or a substituted or unsubstituted aryl group of 6 to 20 carbon atoms, c represents a number of from 1 to 10,000, and b represents a number of from 1 to 30.