US 11,673,825 B2
Glass composition and cooking appliance
Donggun Gwoo, Seoul (KR); and Youngseok Kim, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Appl. No. 16/479,795
Filed by LG ELECTRONICS INC., Seoul (KR)
PCT Filed Feb. 1, 2018, PCT No. PCT/KR2018/001400
§ 371(c)(1), (2) Date Jul. 22, 2019,
PCT Pub. No. WO2018/143700, PCT Pub. Date Aug. 9, 2018.
Claims priority of application No. 10-2017-0014832 (KR), filed on Feb. 2, 2017.
Prior Publication US 2021/0363052 A1, Nov. 25, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. C03C 8/06 (2006.01); C03C 8/08 (2006.01); F24C 15/00 (2006.01)
CPC C03C 8/06 (2013.01) [F24C 15/005 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A glass composition comprising a glass frit containing P2O5, SiO2, B2O3, Al2O3, ZrO2, a fluorine (F) compound, and a group I-based oxide, wherein the P2O5 is contained in an amount of 10 to 30% by weight based on a total weight of the glass frit, wherein the SiO2 is contained in an amount of 20 to 40% by weight based on the total weight of the glass frit, wherein the B2O3 is contained in an amount of 5 wt % to 18 wt % based on the total weight of the glass frit, wherein the Al2O3 is contained in an amount of 15 to 30% by weight based on the total weight of the glass frit, wherein the ZrO2 is contained in an amount of 1 wt % to 8 wt % based on the total weight of the glass frit, wherein the Group I-based oxide is contained in an amount of 20 to 25% by weight based on the total weight of the glass frit, wherein the fluorine (F) compound is contained in an amount of 0.1 wt % to 5 wt % based on the total weight of the glass frit.