3-heteroatom substituted cyclopentadienyl-containing metal complexes and olefin polymerization process
US6268444A · kind A · utility
102Cited by
8References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 15, 1999 |
| Grant date | Jul 31, 2001 |
| Priority date | — |
| Expiry date | Jan 15, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S526/943
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
This invention relates to heteroatom substituted cyclopentadienyl-containing ligands, metal complexes containing these ligands, catalyst systems prepared from catalyst components comprising these metal complexes. The metal complexes contain a "a" heteroatom-Cp bond or a ring heteroatom-Cp bond in the 3-position of the Cp. In preferred metal complexes the ligand is a 3-heteroatom substituted indenyl group. The catalyst systems for olefin polymerization may be used at high temperatures, are highly active and produce high molecular weight polymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.