Alkali-free glass

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United States of America Patent

PATENT NO 9586854
APP PUB NO 20140377525A1
SERIAL NO

14368584

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Provided is an alkali-free glass, including as a glass composition, in terms of mol %, 60 to 70% of SiO2, 9.5 to 17% of Al2O3, 0 to 9% of B2O3, 0 to 8% of MgO, 2 to 15% of CaO, 0.1 to 10% of SrO, and 0.5 to 4% of BaO, having a molar ratio (CaO+SrO+BaO)Al2O3 of 0.6 to 1.0, and being substantially free of alkali metal oxides.

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Patent Owner(s)

  • NIPPON ELECTRIC GLASS CO., LTD.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kawaguchi, Takahiro Shiga, JP 238 2912
Miwa, Shinkichi Shiga, JP 20 355

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