Dual metallocene catalyst systems for decreasing melt index and increasing polymer production rates
US8329834B2 · kind B2 · utility
32Cited by
92References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 28, 2010 |
| Grant date | Dec 11, 2012 |
| Priority date | — |
| Expiry date | Jul 1, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F2410/07
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention provides dual catalyst systems and polymerization processes employing these dual catalyst systems. The disclosed polymerization processes can produce olefin polymers at higher production rates, and these olefin polymers may have a higher molecular weight and/or a lower melt index.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.