COATED GLASS ARTICLES
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United States of America Patent
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Issued Date -
Jun 6, 2024
app pub date -
Dec 4, 2023
filing date -
Dec 5, 2022
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Abstract
A coated glass article is described herein that includes a glass substrate including a first major surface and a second major surface. The first major surface and the second major surface may be opposing sides of the glass substrate. The coated glass article includes an optical coating disposed on the first major surface of the glass substrate. The coated glass article may have a retained strength after impact damage of greater than or equal to 250 MPa. The coated glass article may have a failure height of greater than or equal to 50 cm as measured according to a Drop Test Method on 80 grit sandpaper. In addition, the substrate can comprise 5.0-10.0 mol % Li2O, 1.0-10.0 mol % Na2O, and a lithium to sodium molar ratio (Li2O:Na2O) from 1.2 to 2.0.
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