Ultra-low noble metal doped polarizing glass and process
US7510989B2 · kind B2 · utility
6Cited by
28References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 20, 2006 |
| Grant date | Mar 31, 2009 |
| Priority date | — |
| Expiry date | Mar 4, 2027 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C2214/08
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The invention is directed to a silver-containing polarizing boroaluminosilicate glass composition that has been doped with a noble metal selected from the group consisting of Pt, Pd, Os, Ir, Rh and Ru, including mixtures thereof, to nucleate and precipitate silver ions to silver metal without the need for a reducing atmosphere step. The invention is further directed to a method for making the glass composition of the invention. Using the composition and method of the invention, one can prepare a glass having a selected null transmission range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.