Copolymerization of isomonoolefins with conjugated dienes
US4105845A · kind A · utility
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8References
38Claims
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Key dates
| Filing date | Feb 27, 1974 |
| Grant date | Aug 8, 1978 |
| Priority date | — |
| Expiry date | Feb 27, 1994 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F236/04
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The copolymerization of isoolefins with dienes is initiated by nickel source complexes with compounds of titanium or vanadium. For example, isobutylene and butadiene are copolymerized in the presence of a catalyst of bis(1,5-cyclooctadiene)nickel and titanium tetrachloride.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.