Lipophilic personal care composition

• US 20070009458A1
• Filed: 07/06/2006
• Published: 01/11/2007
• Est. Priority Date: 07/08/2005
• Status: Abandoned Application

• Current Assignee: The Procter & Gamble Company
• Original Assignee: The Procter & Gamble Company
• Inventors: Ishigami, Mayu, Masuda, Hisatoshi
• Application Number:
  US11/482,022
• Publication Number:
  US 20070009458A1
• Time in Patent Office: Days
• US Class Current: 424/64
• CPC Class Codes: A61K 8/63 Steroids; Derivatives thereof
• CPC Class Codes: A61K 8/895 containing silicon bound to unsaturated aliphatic groups, e.g. vinyl dimethicone
• CPC Class Codes: A61Q 1/06 Lipsticks

Abstract

Disclosed is a lipophilic personal care composition comprising by weight: (a) from about 5% to about 50% of an N-long chain acyl acidic amino acid ester of sterol which is liquid at 25° C. having formula (I):
XOC(O)—(CH₂)_n—CH(NHCOR)—C(O)OY  (I) wherein one of X and Y is an ester residue of sterol, and the other is selected from H, a liquid alkyl or alkenyl of 8-30 carbons, and ester residue of monohydric solid alcohol of 12-38 carbons; COR is a long chain acyl group of 8-22 carbons; and n is an integer of 1 or 2, and (b) from about 0.5% to about 15% of an acryl alkyl silicone copolymer having a melting point of no more than about 40° C.

Claims

1. A lipophilic personal care composition comprising by weight:

(a) from about 5% to about 50% of an N-long chain acyl acidic amino acid ester of sterol which is liquid at 25°

C. having formula (I);

XOC(O)—

(CH₂)_n—

CH(NHCOR)—

C(O)OY 

 

(I)

 

wherein one of X and Y is an ester residue of sterol, and the other is selected from H, a liquid alkyl or alkenyl of 8-30 carbons, and ester residue of monohydric solid alcohol of 12-38 carbons;

COR is a long chain acyl group of 8-22 carbons; and

n is an integer of 1 or 2; and

(b) from about 0.5% to about 15% of an acryl alkyl silicone copolymer having a melting point of no more than about 40°

C.

2. The lipophilic personal care composition of claim 1 wherein the composition is substantially free of polar solvents.

3. The lipophilic personal care composition of claim 1 wherein the composition is substantially free of surfactants.

4. The lipophilic personal care composition of claim 1 for use as a lipstick, the lipstick comprising by weight:

(a) from about 5% to about 25% of the N-long chain acyl acidic amino acid ester of sterol; and

(b) from about 0.5% to about 15% of the acryl alkyl silicone copolymer.

5. The lipstick composition of claim 4 further comprising a solid wax.

6. The lipstick composition of claim 4 further comprising a coloring powder.