Substituted 3,4-polymethylenedioxythiophenes, and polymers and electro responsive devices made therefrom
US5187608A · kind A · utility
16Cited by
8References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 13, 1991 |
| Grant date | Feb 16, 1993 |
| Priority date | — |
| Expiry date | Dec 13, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2202/022
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Substituted 3,4-dimethylenedioxythiophenes are provided. The substituted 3,4-dimethylenedioxythiophenes can be polymerized by chemical or electro-chemical means to produce polymers which are useful as EMI shielding and for making smart windows and switches.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.