Process for the preparation of aromatic polyesters and the use thereof for the production of injection molded articles, films and coatings

US4334053A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Dieter Freitag · Krefeld, DE
• Klaus Reinking · Wermelskirchen, DE
• Karsten-Josef Idel · Krefeld, DE
• Harald Medem · Krefeld, DE
• Ludwig Bottenbruch · Krefeld, DE

Key dates

• Filing date: Sep 29, 1980
• Grant date: Jun 8, 1982
• Expiry date: Sep 29, 2000

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G63/20
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Aromatic polyesters based on diphenols, terephthalic and isophthalic acid and particular chain terminators exhibit an improved color number, an improved flowability and increased dimensional heat stability with otherwise comparable mechanical characteristics.