Supported catalyst system, method for the production and use thereof in olefin polymerization

A supported catalyst system comprising at least one metallocene component comprising at least one compound of the formula I below

• where
• M1 is a metal of Group IVb of the Periodic Table of the Elements,
• R1 and R2 are identical or different and are each a hydrogen atom, a C1-C10-alkyl group, a C1-C10-alkoxy group, a C6-C20-aryl group, a C6-C10-aryloxy group, a C2-C10-alkeny group, an OH group, an NR122 group, where R12 is a C1-C10-alkyl group or C6-C14-aryl group, or a halogen atom,
• R3, R4, R6, R7, R8 and also R3′, R4′, R6′, R7′, R8′ are identical are identical or different and are each a hydrogen atom, an unsubstituted or halogenated, linear, cyclic or branched, C1-C10-alkyl group, C2-C10-alkenyl group, C6-C20-aryl group, C7-C40-arylalkyl group, C7-C40-alkylaryl group or C8-C40-arylalkenyl group, with the proviso that R3 and R3′ are not hydrogen, and
• R5 and R5′ are identical or different and are each a C6-C40-aryl group of the formula
• where x, y=0, 1 and x+y=0, 1 or 2, where the aromatic ring system x and/or the aromatic ring system y can also be linked to the radicals R6, R6′ or R4, R4′, and where the C6-C40-aryl group bears a substituent R13 in the para position to the bonding position on the indenyl ring, and R13 is a tert-butyl, p-adamantyl or (F3C)3C,
• R9 is a bridge
• where R10 and R11, even when bearing the same index, can be identical or different and are each a hydrogen atom, a halogen atom or a C1-C20-alkyl group,a C1-C10-fluoroalkyl group, a C1-Cgroup, a C6-C10-fluoroaryl group, a C6-C10-aryloxy group, a C2-C10-alkenyl group, a C7-C40-arylalkyl group, a C7-C40-alkylaryl group or a C8-C40-arylalkenyl group, or R10 and R11 together with the atoms connecting them form one or more rings, z is an integer from zero to 18 and
• M2 is silicon, germanium or tin,
• and at least one cocatalyst and at least one support.