Elastomeric nanocomposites, nanocomposite compositions, and methods of manufacture
US8461240B2 · kind B2 · utility
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19Claims
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Key dates
| Filing date | Apr 30, 2010 |
| Grant date | Jun 11, 2013 |
| Priority date | — |
| Expiry date | Nov 14, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T152/10495
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A nanocomposite comprising at least one elastomer and at least one nanofiller. The elastomer comprises units derived from isoolefins having from 4 to 7 carbon atoms and at least one multiolefin. The nanofiller comprise a layered filler and an amine modifier wherein the nanofiller is substantially free of any unassociated amines. By eliminating unassociated amines in the nanofiller, prior to contact with the elastomer, the nanocomposite has improved processability characteristics while maintaining desired impermeability characteristics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.