The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 05, 2018
Filed:
Jan. 18, 2017
Asahi Glass Company, Limited, Chiyoda-ku, JP;
Yusaku Matsuo, Tokyo, JP;
Yutaka Kuroiwa, Tokyo, JP;
Yusuke Arai, Tokyo, JP;
Hiroyuki Hijiya, Tokyo, JP;
Yuki Kondo, Tokyo, JP;
ASAHI GLASS COMPANY, LIMITED, Chiyoda-ku, JP;
Abstract
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-FeO) in terms of FeO, having a redox ([divalent iron (Fe) in terms of FeO]/[total (Fe+Fe) of divalent iron (Fe) and trivalent iron (Fe) in terms of FeO]) of 0% or more and 25% or less, containing, as expressed by mass percentage based on oxides, 50 to 81% of SiO, 1 to 20% of AlO, 0 to 5% of BO, 5 to 20% of LiO+NaO+KO, and 5 to 27% of MgO+CaO+SrO+BaO, and having a bubble disappearance-starting temperature (TD) of 1485° C. or lower.