Thermotropic polyesterimide from N-carboxyalkylene trimellitimide having excellent processibility, a process for their production and their use for the production of moldings, filaments, fibers and films

US4861857A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Hans R. Kricheldorf · Hamburg, DE
• Ralf Pakull · Krefeld, DE
• Volker Eckhardt · Walsrode, DE
• Hans-Rudolf Dicke · Bestwig, DE

Key dates

• Filing date: May 23, 1988
• Grant date: Aug 29, 1989
• Expiry date: May 23, 2008

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G73/16
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Thermotropic polyesterimides based on N-(.omega.-carboxyalkylene)-trimellitic acid imides and diphenols are distinguished by superior mechanical properties while at the same time being easily processible.