Back to results
US 6,310,153 B2Granted
Preparation of transition metal imine complexes
AssigneeE. I. Du Pont de Nemours and Company
InventorsSteven Dale Ittel, Samuel David Arthur, Joel David Citron
Life of this patent
Estimating the term…
Abstract
Transition metal imine complexes can be prepared by reacting the imine precursors, a carbonyl compound and a primary amine, in the presence of a selected transition metal compound. The complexes may be used as catalysts for olefin polymerization.
Claims18
A process for the polymerization of one or more polymerizable olefins, comprising the steps of:
- producing a transition metal complex of an imine of a first organic compound containing at least one aldehyde or ketone group, and a second organic compound which is a primary amine, by contacting a transition metal compound with said first organic compound and said second organic compound under imine forming conditions in an aprotic solvent to form said transition metal complex, and provided that the transition metal of said transition metal compound is nickel, palladium, iron or cobalt;
- then
- contacting said complex with said one or more polymerizable olefins and optionally cocatalysts to polymerize said one or more polymerizable olefins.
Dependencies are inferred from the claim text.