Purification process of electroluminescent material, electroluminescent material and electroluminescent device
US8242235B2 · kind B2 · utility
6Cited by
6References
16Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jun 4, 2004 |
| Grant date | Aug 14, 2012 |
| Priority date | — |
| Expiry date | Sep 24, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/50
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Objects of the present invention are to provide a purification process that enables Pd and P 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 an oxidizing agent and then with a column, an electroluminescent material that contains Pd and/or P as impurities so as to remove the Pd and/or P.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.