ANTI-COLOR BANDING TOPCOAT FOR COATED ARTICLES
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United States of America Patent
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Issued Date -
Apr 24, 2014
app pub date -
Oct 19, 2012
filing date -
Oct 19, 2012
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Abstract
A coated article includes a functional coating, e.g. an electroconductive low emissivity coating over a surface of a glass substrate and a chemical and/or mechanical protective coating, e.g. a coating of oxides of silicon and aluminum over the functional coating. The protective coating exhibits color banding when viewed under a light source having spectrally narrow emissions, e.g. a fluorescent lamp or light emitting diode, and adjacent ones of the color banding of the protective coating have a Delta E of greater than 5. An anti-banding coating layer of the invention is applied over the protective layer, wherein the anti-banding coating layer exhibits a Delta E of less than 3.
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