Multistage process for the manufacture of peroxide-cured HXNBR-polyamide thermoplastic vulcanizates
US7291667B2 · kind B2 · utility
3Cited by
2References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 13, 2004 |
| Grant date | Nov 6, 2007 |
| Priority date | — |
| Expiry date | Mar 4, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L77/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to a multistage process including at least two steps for making a heat and oil resistant preroxide-cured thermoplastic vulcanizates (TPV) based on hydrogenated carboxiated nitrile butadiene rubber (HXNBR) and at least one polyamide. TPV's according to the present invention have improved properties and morphology over known TPV's prepared in single-stage processes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.