Patent ID: 6380120
Filing Date: 2002-04-30
Classification: C07F,C08F,Y10S

Abstract:
A catalyst composition comprising the reaction product of a cocatalyst and a compound represented by the formula: wherein: M1 is selected from the group consisting of titanium, zirconium, hafnium, vanadium, niobium, tantalum, chromium, molybdenum and tungsten;R1 and R2 are identical or different, and are one of a hydrogen atom, a C1-C10 alkyl group, a C1-C10 alkoxy group, a C6-C10 aryl group, a C6-C10 aryloxy group, a C2-C40 alkenyl group, a C7-C40 arylalkyl group, a C7-C40 alkylaryl group, a C8-C40 arylalkenyl group, an OH group or a halogen atom, or a conjugated diene which is optionally substituted with one or more hydrocarbyl, tri(hydrocarbyl)silyl groups or tri(hydrocarbyl)silylhydrocarbyl groups, said diene having up to 30 atoms not counting hydrogen; R3 are identical or different and are each a hydrogen atom, a halogen atom, a C1-C10 alkyl group which may be halogenated, a C6-C10 aryl group which may be halogenated, a C2-C10 alkenyl group, a C7-C40 arylalkyl group, a C7-C40 alkylaryl group, a C8-C40 arylalkenyl group, a â€”NR215, â€”SR15, â€”OR15, â€”OSiR315 or â€”PR215 radical, wherein R15 is one of a halogen atom, a C1-C10 alkyl group, or a C6-C10 aryl group; R4 to R7 are identical or different and are hydrogen, as defined for R3 or two or more adjacent radicals R5 to R7 together with the atoms connecting them form one or more rings; R13 is represented by the formula: wherein: R17 to R24 are as defined for R1 and R2, or two or more adjacent radicals R17 to R24, including R20 and R21, together with the atoms connecting them form one or more rings;M2 is one or more carbons, silicon, germanium or tin, provided that if M2 is more than one atom, then each M2 atom must be bound such that no one M2 atom is bound to both indenyl moieties; R8, R10 and R12 are identical or different and have the meanings stated for R4 to R7; and R9 and R11 are identical or different and are each a primary, secondary or tertiary butyl group, an aryl group, an isopropyl group, trialkyl silyl group, a fluoroalkyl group or any other Group 14 radical having from 1 to 20 carbon atoms.