US 11,866,364 B2
Salt bath for glass reinforcement, preparation method therefor, reinforced glass and glass raw material
Wei Hu, Guangdong (CN); Baoquan Tan, Guangdong (CN); and Xuming Liu, Guangdong (CN)
Assigned to Chongqing Aureavia Hi-tech Glass Co., Ltd., Chongqing (CN)
Appl. No. 16/968,871
Filed by Chongqing Aureavia Hi-tech Glass Co., Ltd., Chongqing (CN)
PCT Filed Jan. 31, 2018, PCT No. PCT/CN2018/074633
§ 371(c)(1), (2) Date Aug. 11, 2020,
PCT Pub. No. WO2019/000942, PCT Pub. Date Jan. 3, 2019.
Claims priority of application No. 201710515278.6 (CN), filed on Jun. 29, 2017.
Prior Publication US 2021/0094871 A1, Apr. 1, 2021
Int. Cl. C03C 21/00 (2006.01); C03C 3/085 (2006.01); C03C 3/087 (2006.01); C03C 3/093 (2006.01); C03C 3/097 (2006.01); C03C 4/18 (2006.01)
CPC C03C 21/002 (2013.01) [C03C 3/085 (2013.01); C03C 3/087 (2013.01); C03C 3/093 (2013.01); C03C 3/097 (2013.01); C03C 4/18 (2013.01); C03C 2204/00 (2013.01)] 18 Claims
 
1. A salt bath for glass reinforcement including a nitrate with a mass fraction not less than 50% in a molten state, and a metal compound fused into the nitrate, wherein the metal compound contains a same metal element as the nitrate, wherein a mass fraction of the metal element in a molecular formula corresponding to the metal compound is greater than a mass fraction of the metal element in a molecular formula corresponding to the nitrate; wherein the metal compound is selected from at least one of: a metal chloride, a metal peroxide, a metal oxide, a metal phosphate, a metal carbonate, a metal bicarbonate, a metal silicate; wherein a mass fraction of the metal chloride, metal peroxide, metal oxide, metal phosphate, metal carbonate, metal bicarbonate or metal silicate is greater than 11% but smaller than 30%.