Wood preservation products protected with a durable coating system
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United States of America Patent
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Nov 6, 2018
Grant Date -
Apr 13, 2017
app pub date -
Oct 6, 2016
filing date -
Oct 9, 2015
priority date (Note) -
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Abstract
A crosslinking polyvinyl acetate (XPVAc or X-PVAc) adhesive is applied as a primer (i.e., a basecoat) or an exterior coat (i.e., a top coat) on a wood preservation product which is mainly treated with a water-based preservative. By sealing the exterior wood surfaces, the new coating system not only effectively prevents the leaching of the preservative by bonding and chelating with the unfixed preservative compounds or complexes at the surface layer, but it also significantly reduces surface aging of wood, maintains effective preservation functions, and provides a longer service life to the wood preservation product.
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