Durable glass enamel composition
US6936556B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 7, 2003 |
| Grant date | Aug 30, 2005 |
| Priority date | — |
| Expiry date | Dec 1, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C2205/02
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention provides partially crystallizing lead-free and cadmium-free glass enamel composition that fuse at low temperatures. Glass enamel compositions according to the present invention form predominantly bismuth titanate and optionally zinc titanate crystals upon firing. Preferably, glass enamel compositions according to the invention include a glass component that includes by weight from about 11% to about 52% SiO2, from 10.2% to about 40% TiO2, from about 5% to about 75% Bi2O3, up to about 8% B2O3, up to about 14% BaO+SrO, and up to about 45% by weight ZnO, where the sum of Bi2O3 and ZnO comprises from about 30% to about 85% of the glass component by weight.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.