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:
Jun. 11, 2024
Filed:
Aug. 27, 2019
Schott Glass Technologies (Suzhou) Co. Ltd., Jiangsu, CN;
SCHOTT Glass Technologies (Suzhou) Co. Ltd., Jiangsu, CN;
Abstract
A chemically toughenable or toughened glass has, before chemical toughening, a thickness t of at most 1100 μm. The glass comprises the following components: 45-75 mol-% SiO; 10-25 mol-% AlO; >1-11 mol-% LiO; 0-15 mol-% PO; 0-8 mol-% BO; and 0-5 mol-% TiO. The average number of bridging oxygen per polyhedron (BO) calculated as 2*4−2*(c(O)/(c(Si)+c(Al)+c(B)+c(P)+c(Ti))) is higher than 3.55. Upon chemical toughening, the linear dimension variation in the unit of percentage (V) is so low that the overall geometry variation (OGV) calculated as (DoL/t)/Vis higher than 0.8. DoL is the total depth of all ion-exchange layers on one side of the glass and DoL is more than 1 μm, when the glass is chemically toughened with NaNOonly, KNOonly or with both KNOand NaNO.