US 12,454,481 B2
Coating composition having infrared reflective function, coating glass and method for preparation thereof, and cooking appliance using same
Taeho Kim, Seoul (KR); Dongwan Seo, Seoul (KR); Yongsoo Lee, Seoul (KR); Taehee Kim, Seoul (KR); Ju Hyeong Kim, Seoul (KR); Woon-Jin Chung, Chungcheongnam-do (KR); Hansol Lee, Chungcheongnam-do (KR); and In-Gun Kim, Chungcheongnam-do (KR)
Assigned to LG Electronics Inc., Seoul (KR); and KONGJU NATIONAL UNIVERSITY INDUSTRY-UNIVERSITY COOPERATION FOUNDATION, Chungcheongnam-do (KR)
Filed by LG Electronics Inc., Seoul (KR); and KONGJU NATIONAL UNIVERSITY INDUSTRY-UNIVERSITY COOPERATION FOUNDATION, Chungcheongnam-do (KR)
Filed on Jan. 18, 2024, as Appl. No. 18/416,441.
Application 18/416,441 is a division of application No. 16/945,343, filed on Jul. 31, 2020, granted, now 11,912,610.
Claims priority of application No. 10-2019-0093512 (KR), filed on Jul. 31, 2019.
Prior Publication US 2024/0150230 A1, May 9, 2024
Int. Cl. C03C 17/00 (2006.01); A47J 27/00 (2006.01); C03C 17/23 (2006.01); B82Y 30/00 (2011.01)
CPC C03C 17/23 (2013.01) [A47J 27/002 (2013.01); C03C 17/001 (2013.01); B82Y 30/00 (2013.01); C03C 2217/214 (2013.01); C03C 2217/216 (2013.01); C03C 2217/22 (2013.01); C03C 2217/228 (2013.01); C03C 2217/229 (2013.01); C03C 2217/23 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A coating composition, comprising:
a coating material and a heat conductive oxide nano powder that is 5 to 10 wt % with respect to a weight of the coating material,
wherein the coating material comprises:
20 to 40 wt % of phosphorus pentoxide (P2O5),
17 to 29.5 wt % of aluminum oxide (Al2O3),
0.5 to 3 wt % zirconium dioxide (ZrO2),
10 to 30 wt % of sodium oxide (Na2O) and potassium oxide (K2O),
10 to 25 wt % of boron trioxide (B2O3), and
10 to 15 wt % of zinc oxide (ZnO),
wherein the coating material is prepared by a process including (i) melting each of the P2O5, the Al2O3, the ZrO2, the Na2O, the K2O, the B2O3, and the ZnO, (ii) quenching the melted coating material components, and (iii) grinding the quenched coating material components,
wherein the heat conductive oxide nano powder is prepared separately from the coating material, and
wherein the coating composition is a mixture of the coating material and the heat conductive oxide nano powder.