Polymeric fluorescent substance and organic electroluminescence devices using the same
US5543079A · kind A · utility
10Cited by
0References
4Claims
0Family size
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Key dates
| Filing date | Jun 7, 1995 |
| Grant date | Aug 6, 1996 |
| Priority date | — |
| Expiry date | Jun 7, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K11/06
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A polymeric fluorescent substance which is soluble in solvents, has a number average molecular weight of 10.sup.3 to 10.sup.7 and contains, as main constituents, three different repeating units A, B and C selected from various repeating units in specified ratios according to their optical absorption edge wavelengths.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.