Separator and separator seal for polymer electrolyte fuel cells
US8158302B2 · kind B2 · utility
0Cited by
7References
10Claims
0Family size
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Key dates
| Filing date | Dec 4, 2008 |
| Grant date | Apr 17, 2012 |
| Priority date | — |
| Expiry date | Nov 3, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A rubber composition comprising (A) a liquid alkenyl-containing organopolysiloxane with Mw<100,000, (B) a gum-like organopolysiloxane with Mw≧150,000, (C) an organohydrogenpolysiloxane, (D) fumed silica, and (E) an addition reaction catalyst and having a viscosity of 20-200 Pa-s at a shear rate of 10 s−1 and 25° C. is effectively injection moldable into a cured product which is useful as a separator seal in PEFCs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.