Fuel cell separator sealing material and fuel cell separator
US9160011B2 · kind B2 · utility
0Cited by
1References
5Claims
0Family size
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Key dates
| Filing date | Feb 27, 2009 |
| Grant date | Oct 13, 2015 |
| Priority date | — |
| Expiry date | Oct 29, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
For use in a fuel cell separator comprising a separator substrate, a primer layer, and an elastomeric seal, a sealing material comprises a primer composition containing Si—H groups of which the primer layer is formed, and a liquid addition-curable silicone rubber composition containing alkenyl groups and Si—H groups of which the elastomeric seal is formed. A molar ratio of the total amount of Si—H groups to the total amount of alkenyl groups per unit weight of the primer composition and the silicone rubber composition is in the range: 5.0<Si—H/alkenyl<50.0.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.