P-phenylene sulfide polymer preparation with dehydrated mixture

Details P-phenylene sulfide polymer preparation with dehydrated mixture P-phenylene sulfide polymer preparation with dehydrated mixture

1987-01-23

1988-11-22

Anderson, Harold D.

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

Synthetic resins

From sulfur-containing reactant

C08G 7516

Patent

active

047867116

ABSTRACT:
Poly(p-phenylene sulfide) is prepared by the reaction of a p-dihalobenzene such as p-dichlorobenzene, with a dehydrated admixture of an alkali metal hydroxide such as sodium hydroxide, and an alkali metal bisulfide such as sodium bisulfide, in a polar organic solvent such as N-methyl-2-pyrollidone (NMP), employing a molar ratio of alkali metal hydroxide to alkali metal bisulfide of about 0.80:1 to 0.98:1. Poly(p-phenylene sulfide) having a high extrusion rate such as about 100 to about 1000 grams/10 minutes can be prepared in this manner.

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