Process for the preparation of polymers containing hydantoin groups

US4298515A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Jurgen Lewalter · Odenthal, DE
• Ludwig Rottmaier · Odenthal, DE
• Rudolf Merten · Leverkusen, DE
• Wilfried Zecher · Leverkusen, DE
• Willi Dunwald · Leverkusen, DE
• Bernhard Schulte · Krefeld, DE

Key dates

• Filing date: Dec 6, 1979
• Grant date: Nov 3, 1981
• Expiry date: Dec 6, 1999

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G18/3821
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A process for the production of modified polyhydantions by reacting polyglycine acid derivatives with optionally masked polyisocyanates with the addition of cyclic anhydride compounds containing at least one further functional group capable of condensation in lactones as solvents.