Modified carboxyl-containing polyphenylene ether resins

US4751268A · kind A · utility

Assignee

• BASF SE

Inventors

• Christof Taubitz · Monsheim, DE
• Erhard Seiler · Ludwigshafen, DE
• Lothar Schlemmer · Frankenthal (Pfalz), DE

Key dates

• Filing date: Nov 12, 1986
• Grant date: Jun 14, 1988
• Expiry date: Nov 12, 2006

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S525/905
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A process for the preparation of modified polyphenylene ether resins by grafting fumaric acid, preferably at from 270.degree. to 350.degree. C., onto polyphenylene ethers which are mixed with vinylaromatic polymers, and modified polyphenylene ether resins consisting of from 4.95 to 95 parts by weight of polyphenylene ether, from 95 to 4.95 parts by weight of vinylaromatic polymer and from 0.05 to 10 parts by weight of grafted fumaric acid.