Crosslinked metallocene compound for olefin polymerization and method of polymerizing olefin with the same
US7393965B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 17, 2003 |
| Grant date | Jul 1, 2008 |
| Priority date | — |
| Expiry date | Apr 25, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S526/943
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The bridged metallocene compound or the olefin polymerization catalyst which comprises the compound, enables high polymerization activity in polymerizing one or more monomers selected from ethylene and α-olefins. The bridged metallocene compound contains specific substituted cyclopentadienyl and fluorenyl groups which are linked via carbon or silicon atoms. In the method for the preparation of polyolefins, one or more monomers, preferably ethylene as an essential monomer, selected from ethylene and α-olefins are copolymerized in the presence of the olefin polymerization catalyst comprising the bridged metallocene compound, so that an ethylene based polymer with an ethylene content of more than 50 mol % is obtained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.