Production of UHMWPE sheet materials
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United States of America Patent
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Jul 20, 2010
Grant Date -
Jan 24, 2008
app pub date -
Jul 21, 2006
filing date -
Jul 21, 2006
priority date (Note) -
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Abstract
UHMWPE panels of large width may be prepared by a continuous ram extrusion process by employing a slit die which preferably narrows from both sides in a direction transverse to the machine direction, and/or which employs a plurality of transversely positioned cooling zones located on the top and the bottom of the die, proximate the exit thereof. The panel exits the die at a temperature lower than the crystalline melt temperature.
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