Water-soluble polymers and their use in cosmetic and pharmaceutical compositions

US6645476B1 · kind B1 · utility

Assignee

• Clariant Corporation · DE

Inventors

• Roman Morschhäuser · Mainz, DE
• Matthias Loffler · Niedernhausen, DE

Key dates

• Filing date: Jul 14, 2000
• Grant date: Nov 11, 2003
• Expiry date: Jul 14, 2020

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61Q19/10
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

The invention provides water-soluble polymers preparable by free-radical copolymerization of A) one or more macromonomers containing an end-group capable of polymerization, a hydrophilic moiety based on polyalkylene oxides, and a hydrophobic moiety which comprises hydrogen or a saturated or unsaturated, linear or branched, aliphatic, cycloaliphatic or aromatic (C1-C30)-hydrocarbon radical, and B) one or more olefinically unsaturated comonomers which contain oxygen, nitrogen, sulfur, phosphorus, chlorine and/or fluorine. The polymers are suitable as thickeners, dispersing agents, emulsifiers, suspending agents, stabilizers and/or bodying agents for aqueous preparations, emulsions and suspensions, in particular for cosmetic and pharmaceutical compositions.