Method for producing light-emitting substance
US6447698B1 · kind B1 · utility
81Cited by
2References
7Claims
0Family size
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Key dates
| Filing date | Sep 17, 1999 |
| Grant date | Sep 10, 2002 |
| Priority date | — |
| Expiry date | Sep 17, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K11/574
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A manufacturing method for a nanocrystal light emission substance having a nano structure crystal, doped with an activator and cured with ultraviolet light. The nanocrystal light emission substance is synthesized by a liquid phase co-precipitation process. During the liquid phase reaction, an organic acid, such as acrylic acid or methacrylic acid, is added. Alternatively, a high molecular organic acid, such as polyacrylic or polymethacrylic acid, polystyrene, is added after the liquid phase reaction. The resulting substance is then cured with ultraviolet light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.