Metallocene compounds having indenyl ligand and catalysts for olefin polymerization containing the same
US6479646B1 · kind B1 · utility
15Cited by
2References
20Claims
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Key dates
| Filing date | Oct 12, 2000 |
| Grant date | Nov 12, 2002 |
| Priority date | — |
| Expiry date | Oct 12, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F110/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A metallocene compound having an indenyl ligand substituted by a heteroaromatic group, which is useful as an olefin polymerization catalyst. The metallocene compound has the following structure wherein M is a transition metal atom;each Ra is a monocyclic or polycyclic heteroaromatic group;each R1 is halogen, a hydrocarbon group of 1-20 carbons, a halogenated hydrocarbon group of 1-20 carbons, etc., or adjacent R1's may be joined together to form a ring of 6-8 carbons; p and q are each 1-7; n and l are each 0 or 1-6;and each X is halogen, a hydrocarbon group of 1-20 carbons, a halogenated hydrocarbon group of 1-20 carbons, etc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.