Anti-smudge and anti-graffiti compositions
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United States of America Patent
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Jul 17, 2018
Grant Date -
Jul 14, 2016
app pub date -
Oct 16, 2015
filing date -
Oct 16, 2014
priority date (Note) -
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Abstract
Polyurethane-based and epoxy-based coating compositions are described that provide coatings and adhesives that are clear, amphiphobic and durable. Both water and hexadecane readily slide off these surfaces without leaving a residue. Coatings with thicknesses ranging from about 10 nm to about 10 μm exhibited excellent transmittance properties. Such films exhibited durability against abrasion, ink-resistance, anti-graffiti, anti-fingerprint, and strong adhesion to glass surfaces. The coatings are applicable to electronic devices, fabrics, glass, etc. to prepare optically clear, stain-resistant, and smudge-resistant surfaces.
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