Light emitting polymers and devices
US9728732B2 · kind B2 · utility
1Cited by
0References
15Claims
0Family size
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Key dates
| Filing date | Aug 3, 2012 |
| Grant date | Aug 8, 2017 |
| Priority date | — |
| Expiry date | Sep 14, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2211/1466
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A polymer comprising units α, β, γ and δ wherein: unit α is present at 30 mole % to 60 mole % and is an optionally substituted arylene; unit β is present at 1 mole % to 30 mole % and is a unit comprising an optionally substituted fluorene; unit γ is present at 1 mole % to 40 mole % and comprises aryl substituted nitrogen, or an optionally substituted triazine; unit δ is present at 0.5 mole % to 15 mole % and comprises an iridium complex; and optionally up to 20 mole % of other units if the total of α, β, γ and δ is less than 100 mole %.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.