Copolymer, polymer composition and polymer light-emitting device
US6926973B2 · kind B2 · utility
12Cited by
2References
66Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 18, 2002 |
| Grant date | Aug 9, 2005 |
| Priority date | — |
| Expiry date | Dec 18, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S428/917
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A copolymer has a polystyrene reduced number average molecular weight of 103-108, and includes repeating units represented by formulas (1), (2), and (3), —Ar1— (3)The copolymer has an excellent solubility in an organic solvent, and a high glass transition temperature in good valance. Further, a polymer LED has high performance, such as low-voltage driving and high luminance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.