Patent ID: 6677423
Filing Date: 2004-01-13
Classification: C07C,C07F,C08F

Abstract:
A process for the production of polyethylene, comprising the step of contacting, at a temperature of about âˆ’100Â° C. to about +200Â° C., a monomer component comprising ethylene, and an Fe or Co complex of a ligand of the formula: wherein:R1, R2 and R3 are each independently hydrogen, hydrocarbyl, substituted hydrocarbyl or a functional group, or R1 and R2 taken together may form a ring; Ar1 and Ar2 are each independently aryl or substituted aryl; R4, R5, R6, R7, R8, R9, R10, R11, R12 and R13 are each independently hydrogen, hydrocarbyl, substituted hydrocarbyl, or a functional group, provided that any two of R4, R5, R6, R7, R8, R9, R10 and R11 that are vicinal to one another may form a ring; R14 is hydrogen, hydrocarbyl or substituted hydrocarbyl; and Ar3 and Ar4 are each independently aryl or substituted aryl.