Method for purifying electroluminescent material, electroluminescent material and electroluminescent device
US7507351B2 · kind B2 · utility
7Cited by
5References
9Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jun 4, 2004 |
| Grant date | Mar 24, 2009 |
| Priority date | — |
| Expiry date | Feb 3, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S428/917
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Objects of the present invention are to provide a purification process that enables Pd to be removed effectively, and to provide an electroluminescent material and an electroluminescent device obtained by employing the process. The present invention relates to a process for purifying an electroluminescent material, the process involving treating, with a phosphorus-containing material, an electroluminescent material that contains Pd as an impurity so as to remove the Pd.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.