GLASS COMPOSITION SUITABLE FOR CHEMICAL STRENGTHENING AND CHEMICALLY STRENGTHENED GLASS ARTICLE

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United States of America Patent

APP PUB NO 20140011035A1
SERIAL NO

14007118

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Abstract

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Provided is a glass composition suitable for production using large-scale sheet glass mass production facilities by the float process or the like, having high heat resistance, and suitable for chemical strengthening. Specifically, provided is a glass composition containing, in mass %: 60 to 66% SiO2; 10 to 16% Al2O3; 0 to 1% B2O3; 3 to 10% MgO; 0 to 1% CaO; 1 to 9% SrO; O to 4% BaO; 0 to 2% ZnO; 0 to 1% Li2O; 10 to 20% Na2O; 0 to 5% K2O; O to 2% TiO2; 0 to 0.1% ZrO2; and 0 to 2% total iron oxide in terms of Fe2O3. In this glass composition, a total content of MgO, CaO, SrO, and BaO is in a range of 10 to 20%, a total content of Li2O, Na2O, and K2O is in a range of 14 to 20%, and a content of SrO is higher than a content of CaO.

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Patent Owner(s)

Patent OwnerAddress
NIPPON SHEET GLASS COMPANY LIMITEDOSAKA-SHI OSAKA 541-8559

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kurachi, Junji Tokyo, JP 37 503
Senshu, Yutaka Tokyo, JP 5 23

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