Catalyst system for the polymerization of olefins
US6608224B2 · kind B2 · utility
66Cited by
4References
10Claims
0Family size
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Key dates
| Filing date | Feb 22, 2001 |
| Grant date | Aug 19, 2003 |
| Priority date | — |
| Expiry date | Mar 5, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S526/943
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
An organometallic compound obtainable by contactinga) a compound having the following formula (I): wherein Ra, Rb, Rc and Rd equal to or different from each other are hydrocarbon groupsb) a Lewis acid of formula (II)MtR13   (II)wherein Mt is a metal belonging to Group 13 of the Periodic Table of the Elements (IUPAC); R1, equal to or different from each other, are selected from the group consisting of halogen, halogenated C6-C20 aryl and halogenated C7-C20 alkylaryl groups; two R1 groups can also form with the metal Mt one condensed ring.These compounds are useful as cocatalysts for polymerizing olefins.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.