Transition metal compound, catalyst for olefin polymerization containing the same, and method for producing propylene/ethylene-α-olefin block copolymer by using the catalyst
US7906599B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 17, 2007 |
| Grant date | Mar 15, 2011 |
| Priority date | — |
| Expiry date | Apr 17, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S526/943
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Disclosed is a novel transition metal compound which is used for forming a metallocene catalyst for olefin polymerization. Specifically disclosed is a novel transition metal compound represented by the general formula below which enables to form a metallocene catalyst that has a balanced reactivity with ethylene and a comonomer selected from α-olefins having 3-20 carbon atoms and enables to produce an α-olefin polymer having a high molecular weight. Also specifically disclosed are a catalyst for olefin polymerization containing such a transition metal compound, and a method for producing a propylene/ethylene-α-olefin block copolymer wherein such a catalyst is used.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.