Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From sulfur-containing reactant
Patent
1987-07-31
1990-09-18
Jacobs, Lewis T.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From sulfur-containing reactant
528391, G08G 7514
Patent
active
049580043
ABSTRACT:
A process is provided for the production of aromatic sulfide/sulfone polymers which involves contacting under suitable polymerization reaction conditions: (1) at least one dihaloaromatic sulfone, (2) at least one organic amide, (3) at least one alkali metal hydrosulfide, (4) water, and (5) at least one member selected from the group consisting of (a) alkali metal carbonates and (b) mixtures of alkali metal carbonates with alkali metal hydroxides wherein said mixtures have at least about 0.5 mole percent alkali metal carbonate.
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Hoover Kenneth C.
Nesheiwat Afif M.
Scoggins Lacey E.
Shang Wei-Tech W.
Brown J. D.
Jacobs Lewis T.
Phillips Petroleum Company
Woodward David W.
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