Chlorine-free, zero voc, waterborne adhesion promoter for polyolefinic substrates
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United States of America Patent
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Sep 24, 2002
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N/A
app pub date -
Sep 16, 1998
filing date -
Feb 1, 1995
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Expired
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Abstract
A zero VOC aqueous coating composition comprising a halogen-free propylene/.alpha.-olefin copolymer having an .alpha.,.beta.-unsaturated dicarboxylic acid or anhydride grafted thereon, a neutralizing base, a water-dispersible resin containing at least two epoxy groups and an acid catalyst is applied to a plastic substrate comprising a propylene polymer. The dried coating promotes adhesion of a subsequent coating to the polypropylene-based surface of the article.
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