Use of cationic copolymers of unsaturated acids and N-vinylimidazolium salts in cosmetic hair formulations

US6355231B1 · kind B1 · utility

Assignee

• BASF SE

Inventors

• Reinhold Dieing · Schifferstadt, DE
• Peter Hossel · Schifferstadt, DE
• Axel Sanner · Bischofswerda, DE

Key dates

• Filing date: Oct 8, 1998
• Grant date: Mar 12, 2002
• Expiry date: Oct 8, 2018

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F226/06
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Cationic polymers obtainable by free-radically initiated copolymerization of(a) from 60 to 99% by weight, based on the overall amount of all monomers, of a substituted or unsubstituted and quaternized or nonquaternized 1-vinylimidazole,(b) from 1 to 40% by weight of an acid which contains a polymerizable double bond, or of salts of such an acid, and(c) from 0 to 30% by weight of a further free-radically copolymerizable monomer, percentages by weight being based in each case on the overall amount of all monomers,and quaternization of the polymer if a nonquaternized 1-vinylimidazole was employed as monomer a) are used as active ingredients in cosmetic hair formulations such as shampoos.