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:
Mar. 03, 2020
Filed:
Jul. 31, 2017
Corning Incorporated, Corning, NY (US);
Melinda Ann Drake, Corning, NY (US);
Robert Michael Morena, Lindley, NY (US);
CORNING INCORPORATED, Corning, NY (US);
Abstract
According to one embodiment, a glass composition may include from 67 mol. % to about 75 mol. % SiO; from about 6 mol. % to about 10 mol. % AlO; and from about 5 mol. % to about 12 mol. % alkali oxide. The alkali oxide may include KO in an amount less than or equal to 0.5 mol. %. The glass composition may further include from about 9 mol. % to about 15 mol. % of alkaline earth oxide. The alkaline earth oxide may include greater than about 0 mol. % and less than or equal to 3 mol. % MgO, from 2 mol. % to about 7 mol % CaO, at least one of SrO and BaO. The glass composition may further include less than 1 mol. % BO. A ratio of a concentration of MgO to the sum of the concentration of divalent cations (MgO:ΣRO) may be less than 0.3.