Process for the production of polyisoolefins by means of novel metallocene type initiator systems
US5703182A · kind A · utility
6Cited by
5References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 27, 1997 |
| Grant date | Dec 30, 1997 |
| Priority date | — |
| Expiry date | Jan 27, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F110/10
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Polyisoolefins are produced using the process according to the invention by polymerising isoolefins, optionally with conjugated or unconjugated dienes and/or cationically polymerisable, mono- or polyunsaturated compounds in solution, in suspension or in the gas phase at temperatures of -100.degree. C. to +200.degree. C. and pressures of 0.1 to 100 bar in the presence of an initiator system consisting of aluminium-cyclopentadienyl compounds and boron compounds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.