Meso-lactide, processes for preparing it and polymers and copolymers produced therefrom

US4983745A · kind A · utility

Assignee

• Boehringer Ingelheim GmbH · DE

Inventors

• Manfred Muller · Berlin, DE
• Joachim Hess · Ingolstadt, DE
• Wilhem-Gustav Schnell · Ingelheim am Rhein, DE
• Dieter Bendix · Ingelheim am Rhein, DE
• Gunther Entenmann · Ingelheim am Rhein, DE

Key dates

• Filing date: Apr 3, 1989
• Grant date: Jan 8, 1991
• Expiry date: Apr 3, 2009

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G63/08
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

The invention relates to a meso-lactide having a melting point of 52.8.degree. C., processes for its preparation, and its use in the preparation of resorbable polymers and copolymers.