High-transparency glass

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United States of America Patent

PATENT NO 9988298
SERIAL NO

15408803

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Abstract

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The present invention provides a high-transparency glass having a high fining action at a low temperature and capable of achieving redox lowering more than before. The present invention relates to a glass containing 1 to 500 ppm of a total iron oxide (t-Fe2O3) in terms of Fe2O3, having a redox ([divalent iron (Fe2+) in terms of Fe2O3]/[total (Fe2++Fe3+) of divalent iron (Fe2+) and trivalent iron (Fe3+) in terms of Fe2O3]) of 0% or more and 25% or less, containing, as expressed by mass percentage based on oxides, 50 to 81% of SiO2, 1 to 20% of Al2O3, 0 to 5% of B2O3, 5 to 20% of Li2O+Na2O+K2O, and 5 to 27% of MgO+CaO+SrO+BaO, and having a bubble disappearance-starting temperature (TD) of 1485° C. or lower.

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Patent Owner(s)

  • ASAHI GLASS COMPANY, LIMITED

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Arai, Yusuke Tokyo, JP 91 271
Hijiya, Hiroyuki Tokyo, JP 26 86
Kondo, Yuki Tokyo, JP 80 475
Kuroiwa, Yutaka Tokyo, JP 38 87
Matsuo, Yusaku Tokyo, JP 35 109

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