Production of aromatic sulfide/sulfone polymers

Details Production of aromatic sulfide/sulfone polymers Production of aromatic sulfide/sulfone polymers

1987-09-30

1989-02-28

Anderson, Harold D.

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

Synthetic resins

From sulfur-containing reactant

528391, C08G 7520

Patent

active

048086983

ABSTRACT:
An improved process for the production of high molecular weight aromatic sulfide/sulfone polymer comprising contacting under suitable polymerization conditions: (a) an organic amide, (b) an alkali metal sulfide or hydrosulfide, (c) water, and (d) a dihaloaromatic sulfone wherein the molar ratio of (a) to (b) is about 2:1 to about 24:1, the improvement comprising employing a molar ratio of (a) to (c) of about 0.4:1 to about 1.3:1.

REFERENCES:
patent: 4102875 (1978-07-01), Campbell
patent: 4127713 (1978-11-01), Campbell

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