Bridged bis(indenyl) transitional metal complexes, production, and use thereof
US9944665B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 16, 2014 |
| Grant date | Apr 17, 2018 |
| Priority date | — |
| Expiry date | Dec 16, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F210/16
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The invention relates to a novel group bridged metallocene transition metal complexes, wherein the complex includes at least one indenyl ligand substituted at the 4-position with a phenyl group, the 4-phenyl group being preferably substituted at the 3′, 4′, and 5′ positions with particular combinations of substituents, particularly wherein the 4′-substituent is a group of the formula (XR′n)−, wherein X is a Group 14-17 heteroatom having an atomic weight of 13 to 79 and R′ is one of a hydrogen atom, halogen atom, a C1-C10 alkyl group, or a C6-C10 aryl group and n is 0, 1, 2, or 3. Catalyst systems including the transition metal complex, polymerization processes using the transition metal complex, and polymers made using the transition metal complex are also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.