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:
Sep. 19, 2023
Filed:
Jan. 06, 2022
Hass Co., Ltd, Gangneung-si, KR;
Yong Su Kim, Gangneung-si, KR;
Hyun Jun Jeon, Busan, KR;
Hyung Bong Lim, Ansan-si, KR;
Kyung Sik Oh, Incheon, KR;
Sung Ho Ha, Ansan-si, KR;
Young Pyo Hong, Gangneung-si, KR;
Joon Hyung Kim, Anseong-si, KR;
Cheol Young Kim, Seoul, KR;
HASS CO., LTD, Gangneung-si, KR;
Abstract
Provided is a silicate glass, a method for preparing a silicate glass-ceramics by using the silicate glass, and a method for preparing a lithium disilicate glass-ceramics by using the silicate glass, and more particularly, to a method for preparing a glass-ceramics that has a nanosize of 0.2 to 0.5 μm and contains lithium disilicate and silicate crystalline phases. A nano lithium disilicate glass-ceramics containing a SiOcrystalline phase includes: a glass composition including 70 to 85 wt % SiO, 10 to 13 wt % LiO, 3 to 7 wt % POworking as a nuclei formation agent, 0 to 5 wt % AlOfor increasing a glass transition temperature and a softening point and enhancing chemical durability of glass, 0 to 2 wt % ZrO, 0.5 to 3 wt % CaO for increasing a thermal expansion coefficient of the glass, 0.5 to 3 wt % NaO, 0.5 to 3 wt % KO, and 1 to 2 wt % colorants, and 0 to 2.0 wt % mixture of MgO, ZnO, F, and LaO.