Enamel composition, method for preparing enamel composition, and cooking appliance

Patent metadata

Field	Value
Publication number	US-11479500-B2
Application number	US-202016796127-A
Country	US
Kind code	B2
Filing date	Feb 20, 2020
Priority date	Feb 22, 2019
Publication date	Oct 25, 2022
Grant date	Oct 25, 2022

Abstract

An enamel composition, a method for preparing an enamel composition, and a cooking appliance including an enamel composition are provided. The enamel composition may include a base glass frit, and a catalytic glass frit. Further, the enamel composition may include 3 to 20 parts by weight of the catalytic glass frit based on 100 parts by weight of the base glass frit.

First claim

What is claimed is:

1. An enamel composition, comprising:
a base glass frit; and
a catalytic glass frit, wherein the enamel composition comprises 3 to 20 parts by weight of the catalytic glass frit based on 100 parts by weight of the base glass frit, and wherein the catalytic glass frit comprises:
15 to 20 percent by weight (wt %) of silicon dioxide (SiO 2 );
20 to 30 wt % of phosphorus pentoxide (P 2 O 5 );
5 to 15 wt % of boron oxide (B 2 O 3 );
15 to 30 wt % of a Group I oxide;
0.1 to 15 wt % of a Group II oxide;
15 to 30 wt % of aluminum oxide (Al 2 O 3 );
5 to 25 wt % of titanium dioxide (TiO 2 );
1 to 5 wt % zirconium dioxide (ZrO 2 ); and
5 to 10 wt % molybdenum trioxide (MoO 3 ).

2. The enamel composition of claim 1 , wherein the Group I oxide comprises at least one of sodium oxide (Na 2 O), potassium oxide (K 2 O), or lithium superoxide (Li 2 O).

3. The enamel composition of claim 1 , wherein the Group II oxide comprises at least one of calcium oxide (CaO), magnesium oxide (MgO), or barium oxide (BaO).

4. The enamel composition of claim 1 , wherein the base glass frit comprises 5 wt % or less of at least one of cobalt oxide (CoO 3 ), nickel oxide (NiO), ferric oxide (Fe 2 O 3 ), or manganese (VI) oxide (MnO 3 ).

Assignees

• Lg Electronics Inc

Inventors

• Lee Hyeyong
• Kim Young Seok

Classifications

• A47J37/0664

  Accessories · CPC title

• C03C8/22 Primary

  containing two or more distinct frits having different compositions · CPC title

• C03C8/08 Primary

  containing phosphorus · CPC title

• C03C8/02

  Frit compositions, i.e. in a powdered or comminuted form · CPC title

• C03C2207/04

  for steel · CPC title