Condensation products containing polyether-modified monoesters and/or -amides of .alpha., .beta.-unsaturated dicarboxylic acids, their preparation and use

US6287578A · kind A · utility

Assignee

• Th. Goldschmidt. AG · DE

Inventors

• Michael Duetsch · Essen, DE
• Burghard Gruning · Essen, DE
• Jorg Simpelkamp · Essen, DE
• Christian Weitemeyer · Essen, DE

Key dates

• Filing date: May 14, 1999
• Grant date: Sep 11, 2001
• Expiry date: May 14, 2019

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D3/3719
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

The present invention describes condensation products of polyether-modified and optionally hydrophobically modified monoesters and/or -amides of .alpha., .beta.-unsaturated dicarboxylic acids and ammonia, their preparation and use. The condensation products contain polyoxyalkylene chains bonded via ester and/or amide bonds and prepared from monoesters and/or monoamides of monoethylenically unsaturated dicarboxylic acids and ammonia or prepared from the ammonium salts of said acids, and the mixtures thereof, optionally in the presence of cocondensable compounds.