Method of coating pre-primed polyolefin films
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United States of America Patent
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Dec 21, 1999
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N/A
app pub date -
Jul 9, 1998
filing date -
Jul 9, 1998
priority date (Note) -
Expired
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Abstract
A method for providing improved adhesion of a waterborne, inorganic barrier coating to polyolefin substrate is described. The method involves corona-treatment of the substrate and applying a barrier coating composition. The polyolefin substrate is coated with an acrylic primer layer and then an inorganic barrier layer of a copolysilicate of lithium and potassium is applied.
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