Preparation of poly arylene sulfide with specified ratio of sulf

Details Preparation of poly arylene sulfide with specified ratio of sulf Preparation of poly arylene sulfide with specified ratio of sulf

1988-06-20

1989-11-21

Anderson, Harold D.

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

Synthetic resins

From sulfur-containing reactant

C08G 7516

Patent

active

048824160

ABSTRACT:
Arylene sulfide polymers which can be linear, branched or modified are prepared by a process which comprises the steps of: (a) admixing a sulfur source and a cyclic organic amide in the presence of water to form an aqueous admixture wherein the molar ratio of the sulfur source to the cyclic organic amide is at least about 0.6:1 to about 1:1; (b) dehydrating said aqueous admixture to form a dehydrated admixture; (c) admixing with said dehydrated admixture at least one polymerizable halo-substituted aromatic compound to form a polymerization mixture; (d) subjecting the polymerization mixture to polymerization conditions effective to produce the arylene sulfide polymer; and (3) recovering the arylene sulfide polymer.

REFERENCES:
patent: 4663430 (1987-05-01), Ostlinning et al.
patent: 4786711 (1988-11-01), Senatore et al.

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