Method of preparing fluorescent material of small particle size
US4801398A · kind A · utility
21Cited by
6References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 1, 1988 |
| Grant date | Jan 31, 1989 |
| Priority date | — |
| Expiry date | Jun 1, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K11/7789
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A fluorescent material of small size is prepared by synthesizing a fluorescent material of predetermined molecular structure in a single phase, pulverizing the fluorescent material thus produced and then heat treating the pulverized material under conditions sufficient to recover the luminance characteristics which were lost as a result of pulverizing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.