Process for the preparation of a catalytic system, process for the (CO)polymerization of olefins and (CO)polymers of at least one olefin
US6555632B1 · kind B1 · utility
3Cited by
6References
7Claims
0Family size
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Key dates
| Filing date | Jul 8, 1998 |
| Grant date | Apr 29, 2003 |
| Priority date | — |
| Expiry date | Jul 8, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F4/65922
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Process for the preparation of a catalytic system according to which a mixture of a halogenated neutral metallocene derived from a transition metal chosen from groups IIIB, IVB, VB and VIB of the Periodic Table and of an organoaluminium compound is prepared and an ionising agent is added thereto. (Co)polymerisation process according to which a mixture of a halogenated neutral metallocene as defined above and of an organoaluminium compound is prepared, the olefin is brought into contact with this mixture and an ionising agent is added thereto.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.