Polymerization catalysts, methods of making, methods of using, and polyolefin products made therefrom
US8586497B2 · kind B2 · utility
4Cited by
26References
14Claims
0Family size
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Key dates
| Filing date | Nov 12, 2008 |
| Grant date | Nov 19, 2013 |
| Priority date | — |
| Expiry date | Mar 19, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S526/943
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Olefin polymerization catalyst systems including a high molecular weight catalyst compound and a low molecular weight catalyst compound, and methods of making same are provided. High molecular weight catalysts include metallocene catalysts and low molecular weight catalysts include non-metallocene compounds including biphenyl phenol compounds. Generally catalyst systems may include less than about 5.0 mol % of the high molecular weight catalyst compound relative to said low molecular weight catalyst. Methods for olefin polymerization including the aforementioned catalyst systems, and polyolefins and products made therefrom.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.