Process for the preparation of aliphatic-aromatic polycarbonates with diphenol carbonate end groups and their use for the preparation of high-molecular, segmented, aliphatic-aromatic polycarbonate elastomers which can be processed as thermoplastics

US4281101A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Manfred Schreckenberg · Krefeld, DE
• Klaus Konig · Leverkusen, DE
• Dieter Freitag · Krefeld, DE
• Gunther Lehnert · Berkeley, US
• Christian Lindner · Bensheim, DE

Key dates

• Filing date: May 31, 1979
• Grant date: Jul 28, 1981
• Expiry date: May 31, 1999

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G64/1608
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The subject of instant invention is a process for the preparation of aliphatic-aromatic polycarbonates with diphenol carbonate end groups, the polycarbonates obtained therefrom and their use for the preparation of high-molecular, segmented, aliphatic-aromatic polycarbonate elastomers which can be processed as thermoplastics.