Process for the hydrogenation of a polymer composed of diene monomer units and a nitrile group-containing monomer
US6756451B2 · kind B2 · utility
7Cited by
7References
20Claims
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Key dates
| Filing date | Jan 7, 2002 |
| Grant date | Jun 29, 2004 |
| Priority date | — |
| Expiry date | Jan 7, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L15/005
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Process for the hydrogenation of a polymer composed of conjugated diene monomer units and a nitrile group-containing monomer units, in which hydrogenation is carried out in the presence of hydrazine, and an oxidizing compound, with the hydrogenation being carried out in the presence of a antioxidant. It is preferred for NBR to be used as polymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.