Stabilized polyphenylene sulfide fiber
AssigneePhillips Petroleum Company
InventorsJerry O. Reed, Ronald D. Mathis
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Abstract
The heat stability of arylene sulfide resins, such as poly(p-phenylene sulfide) resin, is improved by the addition of cure retarders comprising Group IIA or Group IIB metal salts of fatty acids. The resin compositions of the invention are particularly applicable for reducing gel formation during melt extrusion.
Claims6
In a process for melt extruding fiber grade poly(arylene sulfide) resin having a melt flow of about 50 to about 400 into a fiber, the improvement for reducing gel formation during melt extrusion of said resin into a fiber which comprises incorporating into siad resin an effective heat and melt flow stabilizing amount of at least one Group IIA or Group IIB metal salt of a fatty acid which amount is sufficient to retard curing and cross-linking or substantial alteration of physical properties during heating of said resin during melt extrusion and thereby minimizing plugging of filters and spinnerets with gel.
Dependencies are inferred from the claim text.