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:
Feb. 09, 2021
Filed:
Apr. 27, 2020
Cdgm Glass Co., Ltd., Chengdu, CN;
Baoping Yuan, Chengdu, CN;
CDGM GLASS CO., LTD., Chengdu, CN;
Abstract
The present invention discloses a glass-ceramic article and a glass-ceramic for an electric device cover plate, the glass-ceramic comprises, as a predominant crystalline phase, lithium silicate and the quartz crystalline phase, and has a composition expressed in weight percent including: SiO: 65-85%, AlO: 1-15%, LiO: 5-15%, ZrO: 0.1-10%, PO: 0.1-10%, KO: 0-10%, MgO: 0-10%, ZnO: 0-10%, and NaO: 0-5%, wherein (SiO+AlO+LiO+ZrO)/POis 40-90, the falling ball test height is 700 mm or more. By reasonable component design, the present invention achieves excellent mechanical properties of the glass-ceramic and the glass-ceramic article of the present invention and obtains the glass-ceramic or the glass-ceramic article suitable for electronic devices at a lower cost.