Metallocene compounds, metallocene catalysts including the compounds and methods of polymerizing olefins with the catalysts
US6583304B2 · kind B2 · utility
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12Claims
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Key dates
| Filing date | Feb 16, 2001 |
| Grant date | Jun 24, 2003 |
| Priority date | — |
| Expiry date | May 25, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S526/943
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
There are disclosed new metallocene compounds and catalysts for olefin polymerization. The metallocene compound is a complex of transition metal and cyclopentadienyl-type ligands substituted with silacycloalkyl group. The metallocene catalyst comprises the above metallocene compound and at least one activator such as aluminoxanes, aromatic boron compounds substituted with fluoride, and modified clays. The metallocene catalyst can be used for polymerization of olefin in liquid phase, slurry phase or gas phase process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.