Interpolymers of unsaturated carboxylic acids and unsaturated sulfur acids

US6207780A · kind A · utility

Assignee

• Rohm and Haas Company · US

Inventors

• Dolf Stockhausen · Krefeld, DE
• Helmut Klimmek · Krefeld, DE
• Frank Krause · Kleve, DE
• Matthias Berghahn · Krefeld, DE

Key dates

• Filing date: Sep 8, 1997
• Grant date: Mar 27, 2001
• Expiry date: Sep 8, 2017

Classification

• Technology area (CPC D): Textiles; Paper
• CPC primary: D06P5/08
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

The present invention relates to water-soluble polymers built up of PA1 a) monoethylenically unsaturated dicarboxylic acids and/or their salts, PA1 b) monoethylenically unsaturated monocarboxylic acids and/or their salts, PA1 c) monounsaturated monomers which, after hydrolysis or saponification, can be converted into monomers having a hydroxyl group covalently bonded at the C--C-chain, PA1 d) monoethylenically unsaturated sulfonic acid groups or sulfate groups-containing monomers, and optionally PA1 e) further radically copolymerizable monomers, with the sum of the monomers of a) to e) amounting to 100%. The present invention further relates to a process for the production of these polymers by radical polymerization and hydrolysis in aqueous medium, and to the use of these polymers as additive or cobuilder in detergents and cleaners, in the pretreatment of cotton, as bleaching stabilizers, as auxiliary agent in textile printing, and in the manufacture of leather, as well as for the inhibition of water hardness, and as dispersing agent as well as detergents and cleaners.