High temperature stable polyelectrolytes having backbone aromatic groups
US8574462B2 · kind B2 · utility
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25Claims
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Key dates
| Filing date | Dec 5, 2007 |
| Grant date | Nov 5, 2013 |
| Priority date | — |
| Expiry date | Nov 3, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention relates to polyelectrolytes having backbone aromatic groups, and in particular to aromatic backbone group polyelectrolytes having high levels of sulfonation as well as cross-linking functionality. Preferably the polyelectrolyte backbone is free of linear alkyl groups.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.