Composition for enamel, method for preparing a composition for enamel, and cooking appliance
AssigneeLG Electronics Inc.
InventorsSuyeon CHOI, Taeho KIM, Yongsoo LEE
Life of this patent
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Abstract
A composition for enamel may include 10 to 45 wt % of SiO2; 1 to 10 wt % of B2O3, 10 to 20 wt % of one or more of Na2O, K2O, and/or Li2O, 1 to 5 wt % of NaF, 1 to 10 wt % of ZnO, 5 to 15 wt % of TiO2, 3 to 7 wt % of MoO3, 5 to 15 wt % of Bi2O3, 1 to 5 wt % of CeO2, and 0.5 to 10 wt % of one or more of MnO2, Fe2O3, and/or Co3O4. The composition may be used to make a coating layer provided on a cooking appliance so that contaminants may be easily cleaned from the cooking appliance at a room temperature.
Claims21
A composition for enamel, comprising:
- 10 to 45 weight percent (wt %) of silicon dioxide (SiO2);
- 1 to 10 wt % of diboron trioxide (B2O3);
- 10 to 20 wt % of at least one of sodium oxide (Na2O), potassium oxide (K2O), or lithium oxide (Li2O);
- 1 to 5 wt % of sodium fluoride (NaF);
- 1 to 10 wt % of zinc oxide (ZnO);
- 5 to 15 wt % of titanium dioxide (TiO2);
- 3 to 7 wt % of molybdenum trioxide (MoO3);
- 5 to 15 wt % of bismuth oxide (Bi2O3);
- 1 to 5 wt % of cerium dioxide (CeO2);
- and
- 0.5 to 10 wt % of at least one of manganese dioxide (MnO2), ferric oxide (Fe2O3), or cobalt oxide (Co3O4).
A method for preparing a composition for enamel, the method comprising:
- providing a material of the composition for enamel, the material including:
- 20 to 45 weight percent (wt %) of silicon dioxide (SiO2),
- 1 to 15 wt % of diboron trioxide (B2O3),
- 10 to 20 wt % of at least one of sodium oxide (Na2O), potassium oxide (K2O), and lithium oxide (Li2O),
- 1 to 5 wt % of sodium fluoride (NaF)
- 1 to 10 wt % of zinc oxide (ZnO),
- 5 to 15 wt % of titanium dioxide (TiO2),
- 3 to 7 wt % of molybdenum trioxide (MoO3),
- 5 to 15 wt % of bismuth oxide (Bi2O3),
- 1 to 5 wt % of cerium dioxide (CeO2), and
- 0.5 to 10 wt % of at least one of manganese dioxide (MnO2), ferric oxide (Fe2O3), or cobalt oxide (Co3O4);
- melting the material;
- and
- quenching the melted material.
Dependencies are inferred from the claim text.