Process for the preparation of high molecular weight, optionally

Details Process for the preparation of high molecular weight, optionally Process for the preparation of high molecular weight, optionally

1991-02-11

1992-06-02

Bleutge, John C.

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

Synthetic resins

From sulfur-containing reactant

525537, C08G 7514, C08G 7516

Patent

active

051187868

ABSTRACT:
The invention relates to an anhydrous process for the preparation of high molecular weight, optionally branched polyarylene sulphides. These can be prepared in a polar organic solvent in the absence of water by reaction of dihalogenoaromatics with sodium sulphides and bisulphide or potassium sulphides and bisulphide in the presence of catalysts in a polar organic solvent.

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