Hydrogenation of nitrile rubber
US5210151A · kind A · utility
7Cited by
12References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 2, 1992 |
| Grant date | May 11, 1993 |
| Priority date | — |
| Expiry date | Sep 2, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08C19/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
An improved process is provided for the catalytic hydrogenation of nitrile rubber using a ruthenium catalyst wherein the improvement is that the nitrile rubber is provided as an aqueous emulsion and a solvent and a selected inorganic additive are present during the hydrogenation, whereby the molecular weight increase in the hydrogenation process is minimized and controlled.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.