Dual metallocene catalyst systems for decreasing melt index and increasing polymer production rates
US8450436B2 · kind B2 · utility
14Cited by
95References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 20, 2012 |
| Grant date | May 28, 2013 |
| Priority date | — |
| Expiry date | Nov 20, 2032 |
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.