Mixed catalysts with unbridged hafnocenes with -CH2-SiMe3 moieties
US10913808B2 · kind B2 · utility
8Cited by
71References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 22, 2018 |
| Grant date | Feb 9, 2021 |
| Priority date | — |
| Expiry date | Aug 1, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F2420/07
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present disclosure provides a supported catalyst system and process for use thereof. In particular, the catalyst system includes an unbridged metallocene compound, an additional unbridged metallocene compound having a structure different than the first unbridged metallocene compound, a support material and an activator. The catalyst system may be used for preparing polyolefins.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.