Patent ID: 6482902
Filing Date: 2002-11-19
Classification: C08F

Abstract:
A catalyst system comprisinga) at least one metallocene, b) at least one Lewis base of the formula I M2R3R4R5â€ƒâ€ƒ(I) â€ƒwhere R3, R4 and R5 are identical or different and are each a hydrogen atom, a C1-C20-alkyl group, C1-C20-haloalkyl group, C6-C40-aryl group, C6-C40-haloaryl group, C7-C40-alkylaryl group or C7-C40-arylalkyl group, where two radicals or all three radicals R3, R4 and R5 may be connected to one another via C2-C20-units, and M2 is an element of main group V of the Periodic Table of the Elements, c) a support, d) at least one organoboroaluminum compound which is built up of units of the formula II Ri1M3â€”Oâ€”M3Rj2â€ƒâ€ƒ(II) â€ƒwhere R1 and R2 are identical or different and are each a hydrogen atom, a halogen atom, a C1-C40-group, or R1 is an OSiR3 group, where R are identical or different and are as defined for R1, M3 are identical or different and are each an element of main group III of the Periodic Table of the Elements and i and j are each an integer 0, 1 or 2, and is covalently bound to the support, and, if desired, e) an organometallic compound of the formula V â€ƒwhere M4 is an element of main group I, II or III of the Periodic Table of the Elements, R6 are different and are each a hydrogen atom, a halogen atom or a C1-C40-group, p is an integer from 1 to 3 and k is an integer from 1 to 4.