Coating composition having high light transmittance, coating glass and method for preparation thereof, and cooking appliance using same
US12162795B2 · kind B2 · utility
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2References
8Claims
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Key dates
| Filing date | Jul 10, 2020 |
| Grant date | Dec 10, 2024 |
| Priority date | — |
| Expiry date | May 27, 2043 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C2217/75
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
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).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.