Pigment with day-light fluorescence
US6682663B2 · kind B2 · utility
38Cited by
3References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 23, 2001 |
| Grant date | Jan 27, 2004 |
| Priority date | — |
| Expiry date | Apr 27, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K11/77347
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A pigment, especially a yellow to red emitting luminescent material, with a host lattice of the nitridosilicate type MxSiyNz:Eu, wherein M is at least one of an alkaline earth metal chosen from the group Ca, Sr, Ba and wherein z=⅔x+{fraction (4/3)}y.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.