Method of producing UV-emitting magnesium pentaborate phosphors
US7846352B2 · kind B2 · utility
2Cited by
11References
22Claims
0Family size
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Key dates
| Filing date | Feb 13, 2008 |
| Grant date | Dec 7, 2010 |
| Priority date | — |
| Expiry date | Aug 20, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K11/774
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method of producing a UV-emitting magnesium pentaborate phosphor is described. The method comprises combining a hydrated magnesium hexaborate with oxides of Y, Gd, Ce and Pr to form a mixture and firing the mixture in a slightly reducing atmosphere to form the phosphor. The hydrated magnesium hexaborate, which is preferably prepared as a precipitate, preferably has a formula MgB6O10.XH2O where X is from 4 to 6.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.