Crosslinked copolymers based on cyclic esters and carbonates

US5116918A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Hartwig Hocker · Eckersdorf, DE
• Helmut Keul · Aachen, DE
• Edgar Leitz · Dormagen, DE
• Norbert Schon · Krefeld, DE
• Steffen Kuhling · Meerbusch, DE

Key dates

• Filing date: Feb 19, 1991
• Grant date: May 26, 1992
• Expiry date: Feb 19, 2011

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G63/64
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Crosslinked copolymers of PA1 A) cyclic aliphatic esters and PA1 B) cyclic aliphatic carbonates PA1 in which part of B contains crosslinking-active side groups, PA1 their production and their use for the production of films.