EPDM and/or EPR rubber/silicone compositions
US4808643A · kind A · utility
14Cited by
1References
10Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Mar 30, 1988 |
| Grant date | Feb 28, 1989 |
| Priority date | — |
| Expiry date | Mar 30, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2312/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
EPDM and/or EPR rubber/silicone compositions having improved thermal properties, well adapted for the production of a wide variety of useful shaped articles, e.g., automotive seals, gaskets and belts, include a 2-mercapto-benzimidazole or salt thereof, preferably the zinc salt, an antioxidant comprising a secondary amine function, a diorganopolysiloxane oil, appropriate filler material and a peroxide crosslinking catalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.