Production of aromatic sulfide/ketone polymers

Details Production of aromatic sulfide/ketone polymers Production of aromatic sulfide/ketone polymers

1989-02-27

1991-12-10

Bleutge, John C.

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

Synthetic resins

From ketone or ketene reactant

528223, 528224, 528388, C08G 7502

Patent

active

050719440

ABSTRACT:
A polymerization process is provided for the production of high molecular weight aromatic sulfide/ketone polymer from at least one dihaloaromatic ketone, at least one alkali metal sulfide, at least one polar organic compound and water wherein the polymerization reaction is conducted in two distinct steps separated by an intermediate step of removal of at least a portion of the water.

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