Process for the production of high molecular weight polyesters

US4128533A · kind A · utility

Assignees

• BAYER HEALTHCARE LLC · DE
• Faserwerke Huls Gesellschaft mit beschrankter Haftung · DE

Inventors

• Armin Kohler · Ingolstadt, DE
• Herbert Pelousek · Dormagen, DE
• Helmut Ohse · Dormagen, DE
• Hans-Jorg Westermann · Troisdorf, DE
• Karl-Heinz Magosch · Marl, DE

Key dates

• Filing date: Aug 17, 1977
• Grant date: Dec 5, 1978
• Expiry date: Aug 17, 1997

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G63/82
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention relates to a process for the production of a high molecular weight polyester, which comprises reacting a dicarboxylic acid or derivative thereof with a diol in the presence of a combination of compounds of manganese, magnesium, titanium and antimony as a catalyst.