Preparation of a high molecular weight poly(arylene sulfide ketone)
AssigneePhillips Petroleum Company
InventorRoger G. Gaughan
Life of this patent
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Abstract
A process, and product produced therefrom, for preparing a high molecular weight poly(arylene sulfide ketone) from the reaction product of an alkali metal bisulfide with an alkali metal hydroxide, employing molar excess of alkali metal bisulfide with respect to the alkali metal hydroxide. A process, and product produced therefrom, for preparing a high molecular weight poly(arylene sulfide ketone) employing an alkali metal sulfide and an alkali metal hydrosulfide, wherein the alkali metal sulfide is added in a molar excess with respect to the alkali metal hydrosulfide.
Claims12
A method for preparing a poly(arylene sulfide ketone) comprising:
- contacting in a reaction mixture (a) at least one polyhalobenzophenone, employing about 1.004:1 to about 1.038:1 molar ratios of alkali metal hydrosulfide relative to said polyhalobenzophenone, and at least one of (b) or (c), wherein (b) is at least one alkali metal sulfide and at least one alkali metal hydrosulfide, and (c) is at least one alkali metal hydroxide and at least one alkali metal hydrosulfide, under polymerization conditions effective for producing the poly(arylene sulfide ketone);
Dependencies are inferred from the claim text.