Copolymers containing perfluoroalkyl groups

US4997873A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Carlhans Suling · Odenthal, DE
• Jutta Rottger · Cologne, DE
• Henning Bachem · Germiston, ZA
• Joachim Probst · Leverkusen, DE
• Wilfried Kortmann · Hagen, DE

Key dates

• Filing date: May 22, 1989
• Grant date: Mar 5, 1991
• Expiry date: May 22, 2009

Classification

• Technology area (CPC D): Textiles; Paper
• CPC primary: D06M15/277
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Aqueous dispersions of copolymers and graft copolymers which are formed from ethylenically unsaturated perfluoroalkyl monomers and ethylenically unsaturated monomers from from perfluoroalkyl groups and which are prepared in the presence of emulsifiers containing cationic groups are used for imparting a water-repellent and oleo-repellent finish to textiles, leather and paper.