Preparation of poly(arylene ether ketones) by sequential oligome

Details Preparation of poly(arylene ether ketones) by sequential oligome Preparation of poly(arylene ether ketones) by sequential oligome

1988-05-09

1990-03-27

Kight, John

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymerizing in two or more physically distinct zones

526 66, C08F 200, C08G 8500

Patent

active

049121812

ABSTRACT:
Poly(arylene ether ketones) are prepared by a Friedel-Crafts polymerization wherein a gelled reaction mixture is produced, by permitting the polymerization to proceed in a first reactor until substantial partial polymerization has occurred, but before substantial gelation of the reaction mixture; transferring the partially polymerized reaction mixture into a piston-equipped second reactor; permitting polymerization to continue in the second reactor until a gelled, polymerized reaction mixture has been obtained; and discharging the polymerized reaction mixture from the second reactor by stroking the piston.

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