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:
Jan. 30, 2018
Filed:
Apr. 20, 2016
Asahi Glass Company, Limited, Chiyoda-ku, JP;
Shuichi Akada, Chiyoda-ku, JP;
Asahi Glass Company, Limited, Chiyoda-ku, JP;
Abstract
An ultraviolet absorbing glass article comprising, as a glass matrix composition in mass % based on oxides, from 66 to 75% of SiO, from 10 to 20% of NaO, from 5 to 15% of CaO, from 0 to 6% of MgO, from 0 to 5% of AlO, from 0 to 5% of KO, from 0.13 to 0.9% of FeO, at least 0.8% and less than 2.4% of total iron as represented by FeO, and more than 1% and at most 5% of TiO, containing from 100 to 500 mass ppm of CoO, from 0 to 70 mass ppm of Se and from 0 to 800 mass ppm of CrOin a total content of CoO, Se and CrOof less than 0.1 mass % based on the total content of components in the glass matrix composition, and having an ultraviolet transmittance of at most 2% at a thickness of 3.5 mm.