Profile extrusion method with reduced die build-up and extruded article prepared thereby
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United States of America Patent
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Mar 6, 2012
Grant Date -
Dec 31, 2009
app pub date -
Nov 25, 2008
filing date -
Jun 26, 2008
priority date (Note) -
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Abstract
A profile extrusion method utilizes a specific poly(arylene ether)/polystyrene composition with little or no unhydrogenated poly(conjugated diene) rubber. The method substantially reduces the amount of die lip build-up during continuous profile extrusion for eight hours or more. Reduction of die lip build-up in turn improves the structural integrity and aesthetic properties of the extruded article.
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