Chemistry of carbon compounds – Miscellaneous organic carbon compounds
Patent
1976-03-30
1978-05-16
Marquis, Melvyn I.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
260 79, C08G 7516
Patent
active
040898474
ABSTRACT:
A method is provided in the production of an arylene sulfide polymer by employing a p-dihalobenzene, optionally together with a minor amount of a polyhalo aromatic compound having more than two halogen substituents per molecule; an alkali metal sulfide; an alkali metal carboxylate; a base selected from alkali metal hydroxides and alkali metal carbonates; and an organic amide using a profile of selected temperature ranges within the range of polymerization reaction temperature for the process which results in a polymer of lower melt flow than that of the polymer produced when one polymerization temperature is used throughout the polymerization stage.
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Campbell Robert W.
Edmonds, Jr. James T.
Marquis Melvyn I.
Phillips Petroleum Company
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