Patent ID: 6787618
Filing Date: 2004-09-07
Classification: C08F,Y10S

Abstract:
A metallocene compound having the formula (I): whereM1 is a metal of group IVb, Vb or VIb of the Periodic Table of Elements, R1 and R2 are identical or different radicals and are each 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-C10-alkenyl group, a C7-C40-arylalkyl group, a C7-C40-alkylaryl group, a C8-C40-arylalkenyl group, an OH group or a halogen atom, R3 are identical or different radicals and are each a halogen atom, a C1-C20-hydrocarbon group, â€”NR162, â€”SR6, â€”OSiR163, â€”SiR163 or â€”PR162, where R16 is a radical and is a halogen atom, a C1-C10-alkyl group or a C6-C10-aryl group, R4 to R12 are identical or different radicals and are each a hydrogen atom or are each as defined for the identical or different radicals R3 or two or more adjacent radicals R4 to R12 together with the atoms connecting them form one or more aromatic or aliphatic rings and if R5, R6 and R7 are hydrogen then R9 and R11 are identical or different and are a C1-C4-alkyl group, a C1-C4-alkenyl group or a C6-C10-aryl group, R13 is a radical having the formula: &boxH;BR14, &boxH;AlR14, â€”Geâ€”, â€”Oâ€”, â€”Sâ€”, &boxH;SO, &boxH;SO2, &boxH;NR14, &boxH;CO, &boxH;PR14 or &boxH;P(O)R14, where R14 and R15 are identical or different radicals and are each a hydrogen atom, a halogen atom, a C1-C10-alkyl group, a C1-C10-fluoroalkyl group, a C6-C10-aryl group, a C6-C10-fluoroaryl group, a C1-C10- alkoxy group, a C2-C10-alkenyl group, a C7-C40-arylalkyl group, a C8-C40-arylalkenyl group, a C7-C40-alkylaryl group or the identical or different radicals R14 and R15 together with the atoms connecting them form a ring, and M2 is silicon, germanium or tin.