Heterocycle-heterocycle-based group IV transition metal catalysts for olefin polymerization
US12252573B2 · kind B2 · utility
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Key dates
| Filing date | Dec 20, 2019 |
| Grant date | Mar 18, 2025 |
| Priority date | — |
| Expiry date | Jul 10, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/582
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The polymerization process of this disclosure includes includes polymerizing ethylene and one or more olefins in the presence of a catalyst system under olefin polymerization conditions to form an ethylene-based polymer. The catalyst system comprising a metal-ligand complex according to formula (I).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.