Production of UHMWPE sheet materials
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United States of America Patent
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Jun 15, 2010
Grant Date -
Jan 24, 2008
app pub date -
Jul 13, 2007
filing date -
Jul 21, 2006
priority date (Note) -
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Abstract
Wide panels of UHMWPE having exceptional flatness and surface quality are ram extruded through a slit die equipped with a plurality of individually adjustable cooling zones proximate the panel exit slit and transverse to the machine direction which cool the by a back pressure device and preferably a vertical movement restraint. The process is robust and can be run for long product campaigns.
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