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:
Jul. 03, 2018
Filed:
Mar. 06, 2017
Asahi Glass Company, Limited, Chiyoda-ku, JP;
Shuichi Akada, Tokyo, JP;
ASAHI GLASS COMPANY, LIMITED, Chiyoda-ku, JP;
Abstract
The present invention relates to an ultraviolet-absorbing glass article containing, as represented by mass % based on oxides, as a glass matrix composition: SiO: 66 to 75%, NaO: 10 to 20%, CaO: 5 to 15%, MgO: 0 to 6%, AlO: 0 to 5%, KO: 0 to 5%, FeO: 0.2 to 1.2%, total iron as represented by FeO: 2.4 to 4%, and TiO: more than 0% and 1% or less, containing from 50 to 400 mass ppm of CoO, containing from 0 to 70 mass ppm of Se, containing from 0 to 800 mass ppm of CrO, having a total content of CoO, Se and CrOof less than 0.1 mass %, and having an ultraviolet transmittance (TUV) (ISO9050:2003) of 2% or less at a thickness of 3.5 mm.