Mixed catalyst compounds, catalyst systems and their use in a polymerization process
US6271323A · kind A · utility
97Cited by
7References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 28, 1999 |
| Grant date | Aug 7, 2001 |
| Priority date | — |
| Expiry date | Oct 28, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F2410/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to mixed catalyst compositions of a Group 15 containing hafnium catalyst compound and a bulky ligand metallocene-type catalyst compound, a unsupported and supported catalyst systems thereof and to a process for polymerizing olefin(s) utilizing them.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.