Patent ID: 6355744
Filing Date: 2002-03-12
Classification: C07F,C08F,Y10S

Abstract:
A process for the polymerization of ethylene characterized in that said process is conducted in the presence of:(a) an organometallic complex defined by the formula: wherein Cp is a ligand selected from the group consisting of unsubstituted cyclopentadienyl, substituted cyclopentadienyl, unsubstituted indenyl substituted indenyl substituted fluorenyl and unsubstituted fluorenyl; L is one, and only one, activatable ligand; M is a metal selected from Ti and Zr; and Pl is a phosphinimine ligand defined by the formula: wherein each Ris independently selected from the group consisting of a hydrogen atom, a halogen atom, C1-20 hydrocarbyl radicals which are unsubstituted by or further substituted by a halogen atom, a C1-8 alkoxy radical, an amido radical, a C6-10 aryl or aryloxy radical, a silyl radical of the formula:â€”Siâ€”(R2)3 wherein each R2 is independently selected from the group consisting of hydrogen, a C1-8 alkyl or alkoxy radical, C6-10 aryl or aryloxy radicals, and a germanyl radical of the formula:Geâ€”(R2)3 wherein R2 is as defined above; and(b) an activator.