Production process and washing method of poly(arylene...

Details Production process and washing method of poly(arylene... Production process and washing method of poly(arylene...

2003-12-19

2009-12-15

Choi, Ling-Siu (Department: 1796)

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

Synthetic resins

Treating polymer containing material or treating a solid...

C528S480000, C528S495000, C528S50200C, C528S373000

Reexamination Certificate

active

07632915

ABSTRACT:
A process for producing a poly(arylene sulfide), comprising the respective steps of a washing step of washing a polymer separated from a reaction mixture containing the polymer formed with an organic solvent, which is arranged after a polymerization step, a purification step of purifying the organic solvent recovered after the washing step to lower the content of an alkaline compound mixed therein, and a step of recycling the purified organic solvent through the washing step of the poly(arylene sulfide).

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