Fluorosulfonyl group or sulfonic acid group-containing polymer, its production method and its application
US11414502B2 · kind B2 · utility
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29Claims
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Key dates
| Filing date | Feb 26, 2020 |
| Grant date | Aug 16, 2022 |
| Priority date | — |
| Expiry date | Dec 18, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A fluorosulfonyl group-containing polymer having units represented by the following formula u1, a sulfonic acid group-containing polymer having fluorosulfonyl groups in the fluorosulfonyl group-containing polymer converted into sulfonic acid groups, its production method and its applications: wherein RF1 and RF2 are a C1-3 perfluoroalkylene group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.