Novel acyl acidic amino acid ester
AssigneeAjinomoto Co., Inc.
InventorsTakanori SUGIMOTO, Tatsuya Hattori, Souichirou Ootake
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Abstract
Provided is a novel oily material that spreads smoothly upon application and is free from stickiness, and also gives ungreasy and moisturized feeling after application, but does not give friction feeling peculiar to silicone. The invention was completed upon finding that a specific acyl acidic amino acid monosilicone monosterol ester can solve the foregoing problems.
Claims18
An acyl acidic amino acid monosilicone monosterol ester of formula (I):
- (I):
- wherein R1 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 A2 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 R2 is a group represented by formula (IV) or (V):
- wherein R3, R4, R5, R6, and R7 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 R8, R9, R10, R11, R12, R13, and R14 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.
A process for producing a composition that contains an acyl acidic amino acid monosilicone monosterol ester,
- said process comprising:
- mixing at least one acyl acidic amino acid, at least one carbinol-modified silicone, and at least sterol, to obtain a mixture;
- and
- esterifying said mixture in the presence of an acidic catalyst.
An acyl acidic amino acid disilicone ester of formula (VIII):
- wherein R1 represents a linear or branched hydrocarbon group of 1 to 30 carbon atoms, q is 1 to 2, and Z and W are each independently a group represented by formula (IX):
- wherein A and A2 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, R15, R16, R17, R18, and R19 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.
Dependencies are inferred from the claim text.