Aqueous dispersions of water-soluble polymers with comblike stabilizers

US7795340B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Bettina Wester · Frankenthal (Pfalz), DE
• Volker Braig · Weinheim, DE
• Werner Gauweiler · Lustadt, DE
• Marc Leduc · Speyer, DE
• Stefan Becker · Mannheim, DE
• Robert Feuerhake · Mannheim, DE

Key dates

• Filing date: Oct 25, 2006
• Grant date: Sep 14, 2010
• Expiry date: Jul 3, 2027

Classification

• Technology area (CPC D): Textiles; Paper
• CPC primary: D21H21/14
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention relates to aqueous dispersions of water-soluble polymers of N-vinyl-carboxamides, which are substantially salt-free and comprise anionic polymeric stabilizers having a comb-like molecular structure, processes for the preparation of the dispersions in the presence of anionic polymeric stabilizers having a comb-like molecular structure and the use of the dispersions as retention aids or fixing agents in papermaking.