Bridged metallocene catalyst systems with switchable hydrogen and comonomer effects
US9040643B2 · kind B2 · utility
5Cited by
100References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 18, 2013 |
| Grant date | May 26, 2015 |
| Priority date | — |
| Expiry date | Dec 18, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F2420/12
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention provides polymerization processes utilizing an ansa-metallocene catalyst system for the production of olefin polymers. Polymers produced from the polymerization processes have properties that vary based upon the presence or the absence of hydrogen and/or comonomer in the polymerization process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.