PRODUCTION OF POLY(ARYLENE SULFIDE) POLYMERS CONTAINING REDUCED AMOUNTS OF OLIGOMERS

ABSTRACT OF THE DISCLOSURE A method for removing oligomers and non-polymeric impunities from poly(arylene sulfide) polymers is provided in which a poly(arylene sulfide) polymer associated with oligomers and non-polymeric impunities is contacted with a solvent at a sufficient temperature to substanti...

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Hauptverfasser:	ALLISON, JOHN B, GHARFEH, SAMIR G, FAHEY, DARRYL R
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP
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Zusammenfassung:	ABSTRACT OF THE DISCLOSURE A method for removing oligomers and non-polymeric impunities from poly(arylene sulfide) polymers is provided in which a poly(arylene sulfide) polymer associated with oligomers and non-polymeric impunities is contacted with a solvent at a sufficient temperature to substantially dissolve the polymer, oligomers and impurities, then the solution is cooled to a temperature at which the poly(arylene sulfide) precipitates while oligomers and impurities remain in solution, then the precipitated polymer is separated from the solution containing the oligomers and impurities. A polymer product produced by this method is also disclosed.