1,2-phenylene bridged 1-indenyl-2-indenyl metallocene complexes for olefin polymerisation
US11691998B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 11, 2022 |
| Grant date | Jul 4, 2023 |
| Priority date | — |
| Expiry date | Nov 11, 2042 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B2439/80
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The invention relates to a metallocene complex according to formula (I), (I) wherein R1 and R2 are independently selected from H, an alkyl or an aryl group, wherein R3 is a C1-C10 alkyl group, wherein R′ is selected from H, an alkyl group, an aryl group and wherein different R′ substituents can be connected to form a ring structure and wherein B is a 1,2 phenylene bridging moiety, which can be optionally substituted, wherein Mt is selected from Ti, Zr and Hf, X is an anionic ligand, z is the number of X groups and equals the valence of Mt minus 2. 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)polymerisation process of olefinic monomers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.