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:
Oct. 10, 2017
Filed:
Feb. 06, 2014
Applicant:
Nippon Sheet Glass Company, Limited, Tokyo, JP;
Inventors:
Aya Nakamura, Tokyo, JP;
Junji Kurachi, Tokyo, JP;
Assignee:
NIPPON SHEET GLASS COMPANY, LIMITED, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C03C 3/085 (2006.01); C03C 3/087 (2006.01); C03C 21/00 (2006.01); C03C 3/093 (2006.01);
U.S. Cl.
CPC ...
C03C 3/085 (2013.01); C03C 3/087 (2013.01); C03C 3/093 (2013.01); C03C 21/002 (2013.01);
Abstract
Provided is a glass composition containing, in mol %: 56 to 66% SiO; 6 to 12% AlO; 5 to 14% MgO; 0 to 1% CaO; 17 to 24% NaO; and 0 to 3% KO. The total content of LiO, NaO, and KO is in a range of 18.5 to 24%. This glass composition is suitable for production by a float process and for introduction of a compressive stress layer with a high crack initiation load, a high surface compressive stress, and a large thickness by chemical strengthening.