Method for preparing spherical phosphor particles
US5885492A · kind A · utility
4Cited by
3References
20Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jan 12, 1998 |
| Grant date | Mar 23, 1999 |
| Priority date | — |
| Expiry date | Jan 12, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K11/7784
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method for preparing spherical phosphor particles is disclosed, wherein a precursor solution of phosphors is decomposed to solid particles by aerosol pyrolysis and rapid cooling and subsequently the solid particles are heat-treated at a temperature of 1000.degree. C. to 1600.degree. C. for a period of 1 hour to 9 hours.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.