Catalyst compositions used for copolymerization of isomonoolefins with conjugated dienes
US4338219A · kind A · utility
2Cited by
21References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 26, 1978 |
| Grant date | Jul 6, 1982 |
| Priority date | — |
| Expiry date | May 26, 1998 |
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.