Dihydrocarbyl-silyl-bridged-substituted cyclopentadienyl metallocene complexes for olefin polymerization
US11352386B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 4, 2018 |
| Grant date | Jun 7, 2022 |
| Priority date | — |
| Expiry date | Jul 31, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F210/16
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The invention relates to a metallocene complex according to formula (I), wherein R1 is selected from C2-C10 alkyl, preferably C3-C10 alkyl, C6-C20 aryl, C7-C20 aralkyl groups, wherein R2 is selected from H, C1-C10 alkyl, and wherein R3, R4, R5 and R6 are independently selected from H, C1-C10 alkyl, C6-C20 aryl, or C7-C20 aralkyl groups and wherein R3 and R4, R4 and R5, or R5 and R6 can be connected to form a ring structure wherein M is selected from Ti, Zr and Hf, X is an anionic ligand to M. The invention also relates to a catalyst comprising the reaction product of the metallocene complex and a cocatalyst. Further the invention relates to a (co)polymerization process of olefinic monomers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.