Process for coagulating polymer latices using screw-type extrude

Details Process for coagulating polymer latices using screw-type extrude Process for coagulating polymer latices using screw-type extrude

1976-11-15

1978-07-25

Michl, Paul R.

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

Synthetic resins

Treating polymer containing material or treating a solid...

260821, 528485, 528488, 528493, 528496, C08C 114

Patent

active

041030745

ABSTRACT:
A polymer latex is coagulated by passing the polymer latex and a coagulant through a screw-type extruder in which the latex and coagulant are mixed and mechanically worked under pressure by a rotating interrupted worm flight in cooperation with a plurality of stationary breaker members. At the downstream end of the extruder, the coagulated polymer is compacted and extruded. The extruded polymer is characterized by relatively low moisture content, and the excess process liquid which drains from the compacted polymer is relatively free of uncoagulated polymer.

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