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. 20, 2023
Filed:
Nov. 19, 2018
Applicant:
Cdgm Glass Co., Ltd, Sichuan, CN;
Inventors:
Assignee:
CDGM GLASS CO., LTD, Sichuan, CN;
Primary Examiner:
Int. Cl.
CPC ...
C03C 10/12 (2006.01); C03C 10/14 (2006.01); C03C 10/00 (2006.01);
U.S. Cl.
CPC ...
C03C 10/0027 (2013.01); C03C 10/0009 (2013.01); C03C 10/0054 (2013.01); C03C 2204/00 (2013.01);
Abstract
A glass ceramic contains the following components by wt %: 60 to 80% of SiO; 4 to 20% of AlO; 0 to 15% of LiO; more than 0 but less than or equal to 12% of NaO; 0 to 5% of KO; more than 0 but less than or equal to 5% of ZrO; 0 to 5% of PO; and 0 to 10% of TiO. A crystalline phase contains at least one of RSiO, RSiO, RTiO, RTiO, RPO, RAlSiO, RAlSiOO, RAlSiO, RAlSiO, quartz and quartz solid solution. With a liquidus temperature below 1,450° C., a thermal conductivity above 2 w/m·k, and a Vickers hardness above 600 kgf/mm2, the glass ceramic is applicable to portable electronic devices and optical devices.