(Di)silicon bridged metallocenes that produce polyethylene with broad molecular weight distribution and high molecular weight
US11214631B2 · kind B2 · utility
1Cited by
36References
45Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 7, 2018 |
| Grant date | Jan 4, 2022 |
| Priority date | — |
| Expiry date | May 8, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2323/08
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
This invention relates to catalyst systems comprising a catalyst compound having a bridged group 4 metal metallocene (where the bridge preferably contains an (Me2Si)2 group, an activator, and a support material. In some embodiments, the present disclosure provides for polyolefins and a process for producing a polyolefin composition comprising contacting at least one olefin with a catalyst system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.