Patent ID: 6420579
Filing Date: 2002-07-16
Classification: B01J,C07C,C07F,C08F,Y10S

Abstract:
A compound of the formula Râ€³(FlRn)(CpRm)MQ2 wherein Fl is a fluorenyl radical, Cp is an indenyl radical, each R is the same or different and is selected from the group consisting of organo radicals having from 1 to 20 carbon atoms, Râ€³ is a divalent radical connecting ((FlRn) and (CpRm) selected from the group consisting of hydrocarbyl and heteroatom containing alkylene radicals, diorgano silyl radicals, diorgano germanium radicals, and diorgano tin radicals, M is a metal selected from the group consisting of titanium, zirconium, hafnium, vanadium, niobium, and tantalum, each Q is the same or different and is selected from the group consisting of hydrocarbyl or hydrocarbyl oxy monovalent radicals having 1 to 20 carbon atoms and monovalent halide radicals, n is an integer in the range of 0 to 7, and m is an integer in the range of 0 to 6.