Alkali-free glass

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United States of America Patent

PATENT NO 8785336
APP PUB NO 20120282450A1
SERIAL NO

13415889

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Abstract

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Provided is an alkali-free glass, comprising, as a glass composition in terms of mass %, 55 to 80% of SiO2, 10 to 25% of A12O3, 2 to 5.5% of B2O3, 3 to 8% of MgO, 3 to 10% of CaO, 0.5 to 5% of SrO, and 0.5 to 7% of BaO, having a molar ratio MgO/CaO of 0.5 to 1.5, being substantially free of alkali metal oxides, and having a Young's modulus of more than 80 GPa.

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Patent Owner(s)

  • NIPPON ELECTRIC GLASS CO., LTD.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kawaguchi, Takahiro Otsu, JP 238 2913
Miwa, Shinkichi Otsu, JP 20 355

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