Bonding of granular materials to polyolefin surfaces
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United States of America Patent
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-
Dec 16, 2008
Grant Date -
Mar 25, 2004
app pub date -
Sep 22, 2003
filing date -
Jul 20, 2001
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A permanent, roughened or textured surface is applied to parts molded from polyolefins, particularly from polyethylene by applying to the surface of the part a coating mixture of a tackifier resin and polyolefin particles in a liquid carrier and incorporating a granular or particulate matter in the coating, either by application to the coating or by admixing the granular or particulate matter into the coating mixture. The coated surface is heated to the melt temperature of the polyolefin surface for a short time, sufficient to gel the polyolefin particles of the coating into the surface of the part, but insufficient to cause any thermal distortion of the part.
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