Arylene sulfide polymer preparation from dehydrated admixture comprising sulfur source, cyclic amide solvent and water
AssigneePhillips Petroleum Company
InventorsKenneth D. Goetz, Afif M. Nesheiwat, Guy Senatore, Wei-Teh W. Shang
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Abstract
Arylene sulfide polymer having a high extrusion rate, e.g. at least about 100 g/10 min. are prepared by a process comprising: (a) dehydrating an aqueous admixture of a suitable sulfur source and a cyclic organic amide; (b) admixing a dihalo-substituted aromatic compound with the dehydrate mixture to form a polymerization mixture wherein the molar ratio of sulfur source to the cyclic organic amide is about 0.39:1 to about 0.6:1; (c) subjecting the polymerization mixture to reaction conditions sufficient to produce the arylene sulfide polymer; and (d) recovering the arylene sulfide polymer.
Claims12
A process for preparing arylene sulfide polymers having an extrusion rate of at least about 100 g/10 min. comprising the steps of:
- (a) dehydrating an aqueous admixture comprising at least one sulfur source and at least one cyclic organic amide thereby forming a dehydrated admixture;
- (b) admixing at least one dihalo-substituted aromatic compound with said dehydrated admixture to produce a polymerization mixture wherein the molar ratio of sulfur source to said cyclic organic amide is 0.42:1 to 0.465:1;
- (c) subjecting said polymerization mixture to polymerization conditions effective to produce products comprising said arylene sulfide polymer;
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- (d) recovering said arylene sulfide polymer.
Dependencies are inferred from the claim text.