Green to transmissive soluble electrochromic polymers
US8383761B2 · kind B2 · utility
3Cited by
1References
25Claims
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Key dates
| Filing date | Oct 29, 2008 |
| Grant date | Feb 26, 2013 |
| Priority date | — |
| Expiry date | Nov 16, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2211/1491
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Green to transmissive soluble electrochromic polymers are conjugated polymers having a plurality of repeating units where repeating units are a plurality of substituted dioxyheterocycle based donor groups coupled to an acceptor group. The conjugated polymer absorbs radiation within a first band of the visible spectrum and a second band of the visible spectrum when in a neutral state resulting in a green color and is transmissive when in an oxidized state. The polymers are soluble allowing processing of films and coatings from solution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.