Polybenzimidazole-base complex, crosslinked material of polybenzoxazines formed thereof, and fuel cell using the same
US8298450B2 · kind B2 · utility
3Cited by
20References
43Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 8, 2008 |
| Grant date | Oct 30, 2012 |
| Priority date | — |
| Expiry date | May 30, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A polybenzimidazole-base complex includes a polybenzimidazole-based material and a base, wherein a peak corresponding to NH of an imidazole ring of the polybenzimidazole-based material does not appear at a chemical shift of 12 to 15 ppm in a 1H nuclear magnetic resonance (1H-NMR) spectrum of the polybenzimidazole-base complex. A crosslinked material may be formed as a polymerization product of a polybenzimidazole-base complex and a benzoxazine-based monomer. The crosslinked material may be used an electrolyte membrane for a fuel cell comprising the crosslinked material, and a fuel cell may include the electrolyte membrane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.