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:
Feb. 05, 2019
Filed:
Dec. 20, 2016
Asahi Glass Company, Limited, Chiyoda-ku, JP;
Junko Miyasaka, Tokyo, JP;
Seiki Ohara, Tokyo, JP;
AGC Inc., Chiyoda-ku, JP;
Abstract
An object is to provide a glass for chemical toughening treatment satisfying low brittleness, low melt viscosity and high chemical toughening characteristics, and a chemically toughened glass using the same. Provided is a glass for chemical toughening treatment containing, in mass % in terms of oxides, SiO63 to 76, BO0 to 2, AlO2 to 10, MgO 2 to 12, CaO 0.1 to 8, NaO 14.5 to 19, KO 0 to 3, and FeO0 to 0.5, satisfying a total content of alkali earth metal oxides (RO) being from 5 to 15, satisfying 15×MgO/RO−RO≥3, and having a temperature Tat which a glass viscosity reaches 10dPa·s being 1,600° C. or lower.