NANOSILICA/CLAY COMPOSITIONS AND COATED ARTICLES, AND METHODS OF MAKING THE SAME
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United States of America Patent
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Issued Date -
Mar 3, 2016
app pub date -
Apr 15, 2014
filing date -
Apr 18, 2013
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Abstract
A coating composition comprising an aqueous media comprising silica nanoparticles dispersed in the aqueous media, and clay particles dispersed in the aqueous media, wherein a weight ratio of the clay particles to the silica nanoparticles is in a range from 0.01 to 0.25, and wherein the coating composition has a pH of less than or equal to 4. Articles having an outermost layer having an amorphous silica network of silica nanoparticles and clay particles dispersed in the amorphous silica network.
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