Partially crystallizing ceramic enamel composition containing bismuth silicate, and use thereof
US6207285A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 5, 1999 |
| Grant date | Mar 27, 2001 |
| Priority date | — |
| Expiry date | May 5, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C17/04
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A ceramic enamel composition consists of an oxide frit, a bismuth silicate seed material, a pigment, and a vehicle. A preferred bismuth silicate seed material is selected from crystalline Bi.sub.12 SiO.sub.20, Bi.sub.4 (SiO.sub.4).sub.3, and Bi.sub.2 SiO.sub.5, and mixtures thereof. Upon firing a glass substrate coated with the enamel, components of the enamel adhere to the substrate. The glass can be formed with a die to a desired shape with reduced sticking of the coated region to the die. The ceramic enamel is particularly useful in providing a colored border around automotive glass, which enhances appearance and reduces degradation of adhesives by ultraviolet radiation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.