Branched, high molecular weight, thermoplastic polyarylene ethers containing nitrile groups, and their preparation

US4567248A · kind A · utility

Assignee

• BASF SE

Inventors

• Gerd Blinne · Worms, DE
• Herbert Bender · Haßloch, DE
• Peter Neumann · Wiesloch, DE

Key dates

• Filing date: Dec 13, 1984
• Grant date: Jan 28, 1986
• Expiry date: Dec 13, 2004

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G75/23
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Branched, high molecular weight, thermoplastic polyarylene ethers which contain nitrile groups and are composed of repeating units of the formula I EQU --E.sub.1 --O--E.sub.2 --O-- where E.sub.1 is a radical derived from a dihalobenzene compound and E.sub.2 is a radical derived from a bisphenol, and contain from 0.01 to 5 mol %, based on the radical E.sub.1, of one or more radicals derived from polyhalo compounds of the formulae ##STR1## where X is fluorine or chlorine, and their preparation.