Crosslinked poly(vinyl alcohol) and silica nanoparticle multilayer coatings and methods
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United States of America Patent
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Mar 27, 2018
Grant Date -
May 5, 2016
app pub date -
Apr 25, 2014
filing date -
May 30, 2013
priority date (Note) -
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Abstract
Articles having crosslinked poly(vinyl alcohol) (PVA) and silica nanoparticle multilayer coatings are provided. More specifically, articles including a substrate, and a multilayer coating attached to the substrate are provided. The multilayer coating includes a first crosslinked poly(vinyl alcohol) (PVA) layer and a first silica layer. The first crosslinked PVA layer is an outermost layer of the multilayer coating. The first silica layer comprises a plurality of acid-sintered interconnected silica nanoparticles arranged to form a continuous three-dimensional porous network. The PVA and silica nanoparticle multilayer coatings can be used on a large variety of substrates and tend to be resistant to wet and dry abrasions, scratches, and impacts.
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