Polyaryl ether ketones having improved processibility

US4942216A · kind A · utility

Assignee

• BASF SE

Inventors

• Gerhard Heinz · Bad Dürkheim, DE
• Robert R. Lieder · Schifferstadt, DE
• Juergen Koch · Schifferstadt, DE

Key dates

• Filing date: Feb 10, 1989
• Grant date: Jul 17, 1990
• Expiry date: Feb 10, 2009

Classification

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

Abstract

Polyaryl ether ketones essentially consist of PA0 (A) 55-95 mol % of repeating units of the general formula ##STR1## where s and t are each 0, 1, 2 or 3 and Q and T are each --O-- or --CO--, or their C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.6 alkoxy, aryl, chlorine or fluorine derivatives substituted in the nucleus, and PA0 (B) 5-45 mol % of repeating units of the general formula II ##STR2## where Ar.sup.1, Ar.sup.2, Ar.sup.3, ar.sup.4 and Ar.sup.5 independently of one another are each a phenylene, biphenylene or naphthylene group or a C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.6 -alkoxy, aryl, chlorine or fluorine derivative of this group, Q' and T' are each --O--or --CO-- and s' and t' are each 0, 1, 2 or 3, with the proviso that one or more of the groups Ar.sup.1, Ar.sup.2, Ar.sup.3, Ar.sup.4 and Ar.sup.5 are a biphenylene or naphthylene group or a C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.6 -alkoxy, aryl, chlorine or fluorine derivative of such a group and, if Ar.sup.1 is a biphenylene group, all parameters s, t, s' and t' are not simultaneously 0.