Glass frits, a process for their production and their use in enamel barrier layers for stopping the migration of silver
US5350718A · kind A · utility
20Cited by
5References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 1, 1993 |
| Grant date | Sep 27, 1994 |
| Priority date | — |
| Expiry date | Sep 1, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C17/3411
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Glass frits are disclosed which are essentially free of lead and contain 0.05 to 15 mol-% sulfur and/or sulfides, preferably zinc sulfide. A process is disclosed for producing a glass frit by melting a mixture of oxides and/or non-oxide compounds (fluorides, carbonates) at temperatures of 1,000.degree. to 1,300.degree. C., followed by sudden cooling, characterized in that the glass frit contains between 0.05 and 15 mol-% sulfur, zinc sulfide or other sulfides. The glass frits can be used in enamel barrier layers for stopping the migration of silver.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.