Polymer composition, swellable composition comprising the polymer composition, and articles including the swellable composition
US9018144B2 · kind B2 · utility
0Cited by
9References
19Claims
0Family size
Assignee
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Key dates
| Filing date | Dec 11, 2009 |
| Grant date | Apr 28, 2015 |
| Priority date | — |
| Expiry date | Jun 9, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2205/03
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A polymer composition includes a base polymer comprising a hydrocarbon rubber, an acrylic copolymer, and a refined oil in which the acrylic polymer is dispersed. The polymer composition is swellable when treated with an aqueous medium, non-aqueous medium, or both. A sealing element for a flow channel includes an expandable section filled with a swellable composition that swells when treated with a swelling material. The swellable composition includes the polymer composition, and the swelling material may be aqueous, non-aqueous, or both.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.