Patent ID: 6060569
Filing Date: 2000-05-09
Classification: C07F,C08F

Abstract:
A process for the polymerization of ethylene, comprising, contacting, at a temperature of about -20.degree. C. to about +200.degree. C., ethylene, optionally a Lewis acid, and a compound of the formula ##STR9## wherein: R.sup.1, R.sup.2, R.sup.3, and R.sup.4 are each independently hydrogen, hydrocarbyl, substituted hydrocarbyl, or an inert functional group;R.sup.5 and R.sup.6 are each independently hydrogen, hydrocarbyl or substituted hydrocarbyl;n is 1, 2 or 3;Ar.sup.1 is aryl or substituted aryl;Ar.sup.2 and Ar.sup.3 are each independently hydrocarbyl or substituted hydrocarbyl; andL.sup.1 is a neutral monodentate ligand and L.sup.2 is a monoanionic monodentate ligand, or L.sup.1 and L.sup.2 taken together are a monoanionic bidentate ligand, provided that said monoanionic monodentate ligand or said monoanionic bidentate ligand may be displaced by said ethylene or add to said ethylene.