Process for hydrogenating carboxylated nitrile rubber, the hydrogenated rubber and its uses
US7265185B2 · kind B2 · utility
3Cited by
4References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 9, 2001 |
| Grant date | Sep 4, 2007 |
| Priority date | — |
| Expiry date | Apr 9, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L15/005
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Polymers of a conjugated diene, an unsaturated nitrile and an α,β-unsaturated carboxylic acid are selectively hydrogenated to reduce carbon-carbon double bonds, without also reducing carboxyl groups and nitrile groups, using a rhodium-containing compound as catalyst. The hydrogenated polymers are novel and display excellent adhesive properties at both room temperature and high temperature, excellent hot tear strength, and excellent abrasion resistance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.