Preparing poly(arylene) ketones

Details Preparing poly(arylene) ketones Preparing poly(arylene) ketones

C - Chemistry, Metallurgy

08

G

402/371

C08G 61/12 (2006.01) C08G 67/00 (2006.01)

Patent

CA 1237242

ABSTRACT The preparation of poly(arylene ketones) and in par- ticular all para-linked poly(arylene ether ketones) by Friedel-Crafts polymerization in the presence of a Lewis acid generally results in an intractible reaction product difficult to remove from the reaction vessel and difficult to purify. The addition of a liquefaction agent, such as a hydrogen halide and in particular hydrogen chloride, to the reaction mixture, results in a tractible gel or a liquid which can be readily handled. The hydrogen halide is preferably under pressure and a diluent may also be added along with the hydrogen halide.

477776

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