Phosphorescent compositions for identification
US7910022B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 7, 2007 |
| Grant date | Mar 22, 2011 |
| Priority date | — |
| Expiry date | Mar 13, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K11/642
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Disclosed are photoluminescent compositions containing photoluminescent phosphorescent materials and photoluminescent fluorescent materials whose emission signature lies partly or fully in the infrared region of the electromagnetic spectrum. Also disclosed are photoluminescent compositions containing photoluminescent phosphorescent materials and photoluminescent fluorescent materials whose emission signature lies partly or fully in the infrared region of the electromagnetic spectrum which are high in intensity and high in persistence.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.