Heteroaromatic polyether

US5300625A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Brigitte Helmreich · Garching bei München, DE
• Klaus Burger · Kranzberg, DE
• Gerhard Maier · Herbrechtingen, DE
• Reinhold Hecht · Kaufering, DE
• Oskar Nuyken · Munich, DE

Key dates

• Filing date: Jan 10, 1992
• Grant date: Apr 5, 1994
• Expiry date: Jan 10, 2012

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G65/405
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

Polyethers which contain recurring units of the formula I ##STR1## in which A is a divalent aryl or heteroaryl radical, PA1 X is O, S or NR, PA1 Z is a divalent aryl or heteroaryl radical or an alkynyl, azo or (CF.sub.2) group, and PA1 R is aryl are synthesized. The polyethers can be used as thermoplastics for the production of injection-molded articles, extrudates, polymer blends and coatings and for the production of films and membranes from solution.