Process for Preventing Thiophenol Formation and/or Accumulation During Production of Poly(Arylene Sulfide)
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United States of America Patent
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Issued Date -
Mar 17, 2016
app pub date -
Sep 11, 2014
filing date -
Sep 11, 2014
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Abstract
A process for producing a poly(arylene sulfide) polymer comprising (a) polymerizing reactants in a reaction vessel to produce a poly(arylene sulfide) reaction mixture, (b) processing at least a portion of the poly(arylene sulfide) reaction mixture to obtain a poly(arylene sulfide) reaction mixture downstream product, and (c) contacting a reactive aryl halide with at least a portion of the poly(arylene sulfide) reaction mixture and/or downstream product thereof, wherein before and/or after the contacting, the poly(arylene sulfide) reaction mixture and/or downstream product thereof comprise less than about 0.025 wt. % thiophenol, based on the total weight of the poly(arylene sulfide) reaction mixture and/or downstream product thereof.
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