Preparation of polyaryl ether ketones by electrophilic polycondensation

US5081216A · kind A · utility

Assignee

• BASF SE

Inventors

• Juergen Koch · Schifferstadt, DE
• Gerhard Heinz · Bad Dürkheim, DE

Key dates

• Filing date: Feb 1, 1990
• Grant date: Jan 14, 1992
• Expiry date: Feb 1, 2010

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G61/127
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The addition of compounds which convert carboxylic acids into their halides in the course of electrophilic polycondensation for preparing polyaryl ether ketones improves the controllability and reproducibility of the process and the properties of the products.