Method of forming polythiophene dispersions
US7008562B2 · kind B2 · utility
23Cited by
7References
8Claims
0Family size
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Key dates
| Filing date | Mar 7, 2002 |
| Grant date | Mar 7, 2006 |
| Priority date | — |
| Expiry date | Oct 7, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/13
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A process for the preparation of dispersions or solutions comprising polythiophene+An− ion complexes in anhydrous or low-water-content organic solvents, characterized in that at least one water-miscible organic solvent or a water-miscible solvent mixture is added to an aqueous dispersion or solution comprising optionally substituted polythiophenes, all or some of the water is removed, and the resultant dispersion or solution is, if desired, diluted with organic solvents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.