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US 12,162,795 B2Granted
Coating composition having high light transmittance, coating glass and method for preparation thereof, and cooking appliance using same
AssigneeLG Electronics Inc.
InventorsTaehee Kim, Dongwan Seo, Taeho Kim, Ju Hyeong Kim, Yongsoo Lee
Life of this patent
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Abstract
A cooking appliance includes a cooking chamber, a door that is configured to open and close the cooking chamber and has a door glass, a coating layer that is disposed at least one surface of the door glass and made of a coating composition. The coating composition includes 20 to 40 wt % of phosphorus pentoxide (P2O5), 15 to 30 wt % of aluminum oxide (Al2O3) and 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).
Claims8
A cooking appliance, comprising:
- a cooking chamber;
- a door configured to open and close the cooking chamber, the door comprising a door glass;
- and
- a coating layer disposed at least one surface of the door glass and made of a coating composition, the coating composition comprising:
- 20 to 40 wt % of phosphorus pentoxide (P2O5),
- 15 to 30 wt % of aluminum oxide (Al2O3) and zirconium dioxide (ZrO2),
- 10 to 30 wt % of sodium oxide (Na2O) and potassium oxide (K2O),
- 10 to 25 wt % of boron trioxide (B2O3), and
- 13 to 15 wt % of zinc oxide (ZnO).
6 more elements
Dependencies are inferred from the claim text.