Sulfonated polyphosphazenes, uses thereof, and methods for preparing same
US7169499B2 · kind B2 · utility
0Cited by
7References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 30, 2003 |
| Grant date | Jan 30, 2007 |
| Priority date | — |
| Expiry date | Feb 26, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Polyphosphazene polymers having at least one sulfonated pendent group, and no more than five different sulfonated pendent groups, repeated along the polymer chain, wherein at least one the repeated sulfonated pendent groups links at least one SO3− group to the polymer chain through a nitrogen-free linkage containing at least three carbon atoms, are disclosed, along with methods of making same, and uses therefor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.