Process for the preparation of polymers with recurring succinyl units

US5739393A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Paul Wagner · Mülheim an der Ruhr, DE
• Frank Dobert · Earlton, US
• Torsten Groth · Reinbek, DE
• Winfried Joentgen · Neunburg vorm Wald, DE

Key dates

• Filing date: Feb 21, 1997
• Grant date: Apr 14, 1998
• Expiry date: Feb 21, 2017

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G73/0611
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Polymers with recurring succinyl units are prepared by reaction of maleic anhydride, maleic acid or fumaric acid with condensed liquid ammonia and polymerization of the resulting reaction product.