Preparation of polyaryl ether ketones

US4837296A · kind A · utility

Assignee

• BASF SE

Inventors

• Gerhard Heinz · Bad Dürkheim, DE
• Juergen Koch · Schifferstadt, DE
• Manfred Eggersdorfer · Mannheim, DE
• Jochem Henkelmann · Mannheim, DE

Key dates

• Filing date: Jan 11, 1988
• Grant date: Jun 6, 1989
• Expiry date: Jan 11, 2008

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G65/4012
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Polyaryl ether ketones are prepared by reacting aromatic dihydroxy compounds with aromatic dihalogen compounds in polar aprotic solvents in the presence of alkali metal carbonates, in particular by reacting aromatic dihydroxy compounds I ##STR1## or ring-substituted C.sub.1 -C.sub.8 -alkyl, C.sub.1 -C.sub.8 -alkoxy, aryl, chlorine or fluorine derivatives thereof, n and m each being 0 or 1, with aromatic dihalogen compounds ##STR2## or ring-substituted C.sub.1 -C.sub.8 -alkyl, C.sub.1 -C.sub.8 -alkoxy, aryl, chlorine or fluorine derivatives thereof, r and s each being 0 or 1, A being oxygen or a chemical bond and X being chlorine or fluorine.