Heteroatom substituted metallocene compounds for olefin polymerization catalyst systems and methods for preparing them
US6277778A · kind A · utility
20Cited by
3References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 23, 1998 |
| Grant date | Aug 21, 2001 |
| Priority date | — |
| Expiry date | Sep 23, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F110/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
According to the invention a new catalyst precursor is obtained, in which alkoxy or siloxy substitution in the 2-position of 5-membered ring of indenyl compound has been carried out. Thereby a metallocene compound is achieved, in which an oxygen atom is directly bonded to the 2-position of a pentahapto indenyl moiety. The catalyst precursors can be used as components for olefin polymerization catalysts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.