Coating processes – Solid particles or fibers applied – Applying superposed diverse coatings or coating a coated base
Reexamination Certificate
2003-09-22
2008-12-16
Parker, Fred J. (Department: 1792)
Coating processes
Solid particles or fibers applied
Applying superposed diverse coatings or coating a coated base
Reexamination Certificate
active
07465473
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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patent: 2628172 (1953-02-01), Jenett
patent: 3450571 (1969-06-01), Zenczak
patent: 4680072 (1987-07-01), Farrell
patent: 5114763 (1992-05-01), Brant et al.
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patent: 5681217 (1997-10-01), Hoopman et al.
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“Polymer Science Dictionary”, 2ndedition, Mark Alger, p. 307, 1989.
Reeves Robert Alan
Stevenson Michael J.
Parker Fred J.
Stevenson Michael J.
Strauss Robert E.
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