Static seals, compositions, and methods of making the same
US10689470B2 · kind B2 · utility
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61References
19Claims
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Key dates
| Filing date | Dec 8, 2017 |
| Grant date | Jun 23, 2020 |
| Priority date | — |
| Expiry date | May 31, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2200/0494
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A static sealing member is provided that includes a composition having a silane-crosslinked polyolefin elastomer with a density less than 0.90 g/cm3. The static sealing member can exhibit a compression set of from about 5.0% to about 35.0%, as measured according to ASTM D 395 (22 hrs @ 70° C.). The silane-crosslinked polyolefin elastomer can include a first polyolefin having a density less than 0.86 g/cm3, a second polyolefin having a crystallinity less than 40%, a silane crosslinker, a grafting initiator, and a condensation catalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.