Aromatic sulfide/sulfone polymer production

Details Aromatic sulfide/sulfone polymer production Aromatic sulfide/sulfone polymer production

1976-06-22

1978-07-25

Marquis, Melvyn I.

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

Synthetic resins

From sulfur-containing reactant

528364, C08G 7516

Patent

active

041028759

ABSTRACT:
Aromatic sulfide/sulfone polymers of increased molecular weight are produced by contacting a dihalo aromatic sulfone, at least partially hydrated alkali metal sulfide, and an organic amide under polymerization conditions which produce a higher molecular weight aromatic sulfide/sulfone polymer. The use of at least one at least partially hydrated alkali metal sulfide other than lithium sulfide results in polymers of increased molecular weight having utility as coatings, films, molded objects, filaments, fibers, and the like.

REFERENCES:
patent: 3354129 (1967-11-01), Edmonds, Jr. et al.
patent: 3780000 (1973-12-01), Feasey et al.
patent: 4016145 (1977-04-01), Campbell

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