Selective hydrogenation of conjugated diolefin polymers with Tebbe's reagent
US5244980A · kind A · utility
12Cited by
11References
10Claims
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Key dates
| Filing date | Dec 7, 1992 |
| Grant date | Sep 14, 1993 |
| Priority date | — |
| Expiry date | Dec 7, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08C19/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
This is a process for the hydrogenation of conjugated diolefin polymers which comprises polymerizing or copolymerizing at least one conjugated diolefin with an organo alkali metal polymerization initiator in a suitable solvent thereby creating a living polymer, terminating the polymerization by the addition of hydrogen and effecting selective hydrogenation of the unsaturated double bonds in the conjugated diolefin units of the terminated polymer by contacting the polymer with hydrogen in the presence of an organo alkali metal promoter and Tebbe's reagent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.