Low dimerizing viologen electrochromic compounds and devices
US11414594B2 · kind B2 · utility
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17Claims
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Key dates
| Filing date | Apr 7, 2020 |
| Grant date | Aug 16, 2022 |
| Priority date | — |
| Expiry date | May 7, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/1523
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A low dimerizing electrochromic compound for use in electrochromic mediums and electro-optic elements incorporating said electrochromic mediums is provided. The low dimerizing electrochromic compound is represented by Formula (I): wherein each R1 is individually an alkyl, a hydroxyalkyl, or an alkyl substituted with at least one polymerizable functional group; each R2 is a hydrogen; each R3 is individually a hydrogen or an alkyl; and each R4 is individually a hydrogen, an alkyl, or a hydroxyalkyl; and X− is an anion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.