Bridged bi-aromatic catalysts, complexes, and method of...

C - Chemistry – Metallurgy – 07 – F

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C07F 7/00 (2006.01) C07F 5/00 (2006.01) C07F 11/00 (2006.01)

Patent

CA 2562090

Ligands, compositions, metal-ligand complexes and arrays with substituted bridged bis-biaromatic ligands and method of making and using the same, are disclosed that are useful in the catalysis of transformations such as the polymerization of monomers into polymers. The catalyts have high performance characteristics, including higher comonomer incorporation into ethylene/olefin copolymers, where such olefins are for exmaple, 1-octene, propylene or styrene. The catalysts also polymerize propylene into isotactic polypropylene.

La présente invention a trait à des ligands, des compositions, des complexes métal/ligand et des jeux ordonnés d'échantillons avec des ligands bi-aromatiques pontés substitués et à un procédé de fabrication et d'utilisation de ceux-ci, utiles dans la catalyse de transformations telles que la polymérisation de monomères en polymères. Les catalyseurs présentent des caractéristiques d'efficacité élevées, comprenant une incorporation plus élevée de comonomères dans des copolymères éthyléniques/oléfiniques, où de telles oléfines sont, par exemple, 1-octène, propylène ou styrène. Les catalyseurs assurent également la polymérisation de propylène en polypropylène isotactique.

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