Sealing material
US9068653B2 · kind B2 · utility
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16References
4Claims
0Family size
Assignee
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Key dates
| Filing date | Aug 25, 2011 |
| Grant date | Jun 30, 2015 |
| Priority date | — |
| Expiry date | Aug 25, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K3/1009
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
To provide a sealing material which is excellent in sealability under high-temperature conditions as well as crack resistance at high temperatures and high compression. A sealing material comprising a cross-linked fluororubber layer obtainable by cross-linking a fluororubber composition containing a fluororubber (A) and a carbon black (B), the cross-linked fluororubber layer having a loss modulus E″ of 600 kPa or higher and 6,000 kPa or lower determined by a dynamic viscoelasticity test under conditions of measurement temperature: 160° C., tensile strain: 1%, initial force: 157 cN, and frequency: 10 Hz.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.