Method to recover liquified poly(arylene sulfide) with separatio

Details Method to recover liquified poly(arylene sulfide) with separatio Method to recover liquified poly(arylene sulfide) with separatio

1989-12-27

1991-08-06

Anderson, Harold D.

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

Synthetic resins

Treating polymer containing material or treating a solid...

528388, 528494, 528495, 528497, C08G 7514

Patent

active

050379542

ABSTRACT:
A method is provided for recovering poly(arylene sulfide) from a mixture comprising a liquid-phase poly(arylene sulfide) and a polar organic compound, wherein the liquid mixture is contacted by an amount of a liquid, vaporized, or mixed phase separation agent at least sufficient to effect or enhance a phase separation of the liquid-phase poly(arylene sulfide) component from the polar organic compound. The poly(arylene sulfide) resins recovered according to this invention generally exhibit uniform particle size and do not tend to adhere to vessel walls during the recovery.

REFERENCES:
patent: 3354129 (1967-11-01), Edmonds, Jr. et al.
patent: 3793256 (1974-02-01), Scoggins
patent: 3839302 (1974-10-01), Miles
patent: 3919177 (1975-11-01), Campbell
patent: 3956060 (1976-05-01), Scoggins
patent: 4127713 (1978-11-01), Campbell
patent: 4321358 (1982-03-01), Zelinski
patent: 4415729 (1983-11-01), Scoggins et al.
patent: 4748231 (1988-05-01), Nesheiwat

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