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. 24, 2020
Filed:
Mar. 03, 2017
Corning Incorporated, Corning, NY (US);
Paul Stephen Danielson, Dundee, NY (US);
Steven Edward DeMartino, Painted Post, NY (US);
Melinda Ann Drake, Corning, NY (US);
Robert Michael Morena, Lindley, NY (US);
Santona Pal, Painted Post, NY (US);
Robert Anthony Schaut, Painted Post, NY (US);
CORNING INCORPORATED, Corning, NY (US);
Abstract
The embodiments described herein relate to chemically and mechanically durable glass compositions and glass articles formed from the same. In another embodiment, a glass composition may include from about 70 mol. % to about 80 mol. % SiO; from about 3 mol. % to about 13 mol. % alkaline earth oxide; X mol. % AlO; and Y mol. % alkali oxide. The alkali oxide may include NaO in an amount greater than about 8 mol. %. A ratio of Y:X may be greater than 1 and the glass composition may be free of boron and compounds of boron. In some embodiments, the glass composition may also be free of phosphorous and compounds of phosphorous. Glass articles formed from the glass composition may have at least a class S3 acid resistance according to DIN 12116, at least a class A2 base resistance according to ISO 695, and a type HGA1 hydrolytic resistance according to ISO 720.