ALKALI-FREE GLASS PLATE
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United States of America
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Issued Date -
Nov 14, 2024
app pub date -
Jul 23, 2024
filing date -
Jul 23, 2024
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Abstract
The present invention provides an alkali-free glass sheet, including as a glass composition, in terms of mol %, 55% to 80% of SiO2, 10% to 25% of Al2O3, 0% to 4% of B2O3, 0% to 30% of MgO, 0% to 25% of CaO, 0% to 15% of SrO, 0% to 15% of BaO, 0% to 5% of ZnO, and 0% to less than 1.0% of Y2O3+La2O3, being substantially free of an alkali metal oxide, and having a strain point of 750° C. or more.
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