US Patent:
20130156714, Jun 20, 2013
Inventors:
Ashley L. Howell - Oakland NJ, US
Bing C. Mei - Mahwah NJ, US
Assignee:
AVON PRODUCTS, INC. - New York NY
International Classification:
A61K 8/81
A61Q 1/06
A61Q 19/00
A61Q 1/10
A61Q 1/02
A61Q 1/04
A61Q 1/08
Abstract:
Cosmetic compositions are provided, which are capable of forming a cosmetic film on a human integument when applied thereto. Cosmetic compositions according to the invention typically include a cosmetically acceptable vehicle, optionally, one or more colorants, and a pH-dependant film-forming polymer of poly(methacrylic acid-co-methyl methacrylate) having a ratio of methacrylic acid to methyl methacrylate of about 1:1 to about 1:2, an acid value of from about 150 to about 350 mg KOH/g, and a weight average molar mass between about 100,000 and about 150,000 g/mol. The compositions are capable of forming an adherent film on the integument that is substantially resistant to removal by water at a first pH, but readily dispersible or soluble in water at a second pH higher than said first pH.