Poly(phenylene) and m-Terphenyl as protecting groups for benzimidazolium hydroxides
US10800874B2 · kind B2 · utility
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Key dates
| Filing date | Jan 6, 2017 |
| Grant date | Oct 13, 2020 |
| Priority date | — |
| Expiry date | Apr 5, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/55
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present disclosure provides alkaline-stable m-terphenyl benzimidazolium hydroxide compounds, in which the C2-position is attached to a phenyl group having various substituents at the ortho positions. Polymers incorporating m-terphenylene repeating groups derived from these alkaline-stable benzimidazolium hydroxide compounds are also presented, along with their inclusion in ionic membranes and in electrochemical devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.