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:
Dec. 06, 2022
Filed:
Mar. 18, 2020
Applicant:
Corning Incorporated, Corning, NY (US);
Inventors:
George Halsey Beall, Big Flats, NY (US);
John Philip Finkeldey, Elkland, PA (US);
Charlene Marie Smith, Corning, NY (US);
Assignee:
CORNING INCORPORATED, Corning, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03C 10/10 (2006.01); C03C 10/16 (2006.01); C03B 32/02 (2006.01); C03C 10/00 (2006.01); C03B 25/02 (2006.01); C03C 4/18 (2006.01); C03C 21/00 (2006.01);
U.S. Cl.
CPC ...
C03C 10/0045 (2013.01); C03B 25/02 (2013.01); C03B 32/02 (2013.01); C03C 4/18 (2013.01); C03C 10/0009 (2013.01); C03C 10/0018 (2013.01); C03C 10/0054 (2013.01); C03C 10/16 (2013.01); C03C 21/002 (2013.01); C03C 2204/00 (2013.01);
Abstract
A glass-ceramic comprising, in weight percent on an oxide basis, of 50 to 70% SiO, 0 to 20% AlO, 12 to 23% MgO, 0 to 4% LiO, 0 to 10% NaO, 0 to 10% KO, 0 to 5% ZrO, and 2 to 12% F, wherein the predominant crystalline phase of said glass-ceramic is a trisilicic mica, a tetrasilicic mica, or a mica solid solution between trisilicic and tetrasilicic, and wherein the total of NaO+LiO is at least 2 wt. %; wherein the glass-ceramic can be ion-exchanged.