Elastomeric compositions comprising hydrocarbon polymer additives having improved impermeability
US8476352B2 · kind B2 · utility
12Cited by
9References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 26, 2009 |
| Grant date | Jul 2, 2013 |
| Priority date | — |
| Expiry date | Jun 26, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L57/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
An elastomeric compositions having improved impermeability is disclosed. The cured elastomeric composition may comprise at least one C4-C7 monoolefin elastomer, a hydrocarbon polymer additive, and a clay. In some embodiments, the cured elastomeric composition has a permeation coefficient at 40° C. of 90 cc*mm/(m2-day) or less. In some embodiments, the elastomeric composition is substantially free of naphthenic oil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.