Late transition metal diimine catalyst
US6670297B1 · kind B1 · utility
13Cited by
29References
9Claims
0Family size
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Key dates
| Filing date | Nov 6, 2000 |
| Grant date | Dec 30, 2003 |
| Priority date | — |
| Expiry date | Nov 6, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/626
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Catalysts for the polymerization of olefins are provided. The catalysts contain transition metals including nickel and palladium and a diimine ligand in a square planar configuration with two other ligands, and are useful in the polymerization of, for example, olefins, cycloolefins, olefinic esters, and olefinic carboxylic acids. The cocatalyst forms a useable coordinating anion. Polymerization processes using the catalysts can produce homopolymers and copolymers, and the polymers produced may be crosslinked and/or exhibit branching.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.