Process for preparing polyarylene sulfides of increased molecula

Details Process for preparing polyarylene sulfides of increased molecula Process for preparing polyarylene sulfides of increased molecula

1992-01-13

1994-01-11

Kight, III, John

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

Synthetic resins

From sulfur-containing reactant

528389, 26433111, C08G 7514

Patent

active

052782832

ABSTRACT:
Disclosed is a process for preparing a polyarylene sulfide, which involves polycondensing a dihalogenated aromatic compound with a source of sulfur in an organic polar solvent while dehydrating at pressure under which polycondensation is performed. This process avoids dehydration operation of the raw materials, particularly the source of sulfur, prior to polycondensation, thereby resulting in the production of the polyarylene sulfide having a high molecular weight.

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