Halogenated bisdiarylaminopolycyclic aromatic compounds and polymers thereof
US7651746B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 3, 2004 |
| Grant date | Jan 26, 2010 |
| Priority date | — |
| Expiry date | Nov 3, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2102/103
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A halogenated bisdiarylaminopolycyclic aromatic compound, polymers made therefrom, and polymeric light emitting diode devices using the polymers are described. The halogenated compound is represented by formula (I), wherein Ar and Ar′ are each independently substituted or unsubstituted aryl groups and Z is a polycyclic arylene group, wherein at least one of the Ar′ groups is a haloaryl group. Devices using polymers prepared from the halogenated compound exhibit improved performance and longer lifetime, presumably as a result of the presence of the geometrically constrained diarylaminopolycyclic aromatic groups in the polymer backbone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.