Colored glasses and method
US5275979A · kind A · utility
10Cited by
8References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 30, 1992 |
| Grant date | Jan 4, 1994 |
| Priority date | — |
| Expiry date | Oct 30, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C2214/16
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Thermally induced color is developed in a glass article containing a silver halide crystal phase by including in the glass batch a thermal reducing agent, retaining the thermal reducing agent in its lower valence state while meltinq the batch and forming the glass article and subsequently heat treating the article to partially reduce the silver halide crystal phase.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.