Thermotropic polyester imide from N-(3-hydroxy phenyl) trimellitic acid imide

US4948863A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Hans-Rudolf Dicke · Bestwig, DE
• Joachim Genz · Krefeld, DE
• Volker Eckhardt · Walsrode, DE
• Ludwig Bottenbruch · Krefeld, DE

Key dates

• Filing date: Apr 21, 1989
• Grant date: Aug 14, 1990
• Expiry date: Apr 21, 2009

Classification

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

Abstract

Thermotropic polyester imides having recurrent structural units corresponding to the following formulae: ##STR1##