Polymerization catalysts and process for producing bimodal polymers in a single reactor
US7226886B2 · kind B2 · utility
284Cited by
39References
24Claims
0Family size
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Key dates
| Filing date | Sep 15, 2005 |
| Grant date | Jun 5, 2007 |
| Priority date | — |
| Expiry date | Sep 15, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S526/943
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Catalyst compositions comprising a first metallocene compound, a second metallocene compound, an activator-support, and an organoaluminum compound are provided. An improved method for preparing cyclopentadienyl complexes used to produce polyolefins is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.