Sterically hindered phosphino-urea supported nickel (II) or palladium (II) catalysts for the copolymerization of ethylene and polar comonomers
US12319758B2 · kind B2 · utility
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Key dates
| Filing date | Mar 31, 2021 |
| Grant date | Jun 3, 2025 |
| Priority date | — |
| Expiry date | Jun 8, 2042 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F4/80
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Processes of polymerizing olefin monomers using catalyst systems and catalysts systems that include a procatalyst having a structure according to formula (I):
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.