Patent ID: 6683018
Filing Date: 2004-01-27
Classification: B01J,C08F

Abstract:
A process for the preparation of a supported catalyst system, comprising, in a first step reacting a metal compound of the formula IM1(R1)r(R2)s(R3)t(R4)uâ€ƒâ€ƒI whereM1 is an alkali metal, an alkaline earth metal or a metal of main group III or IV of the Periodic Table, R1 is hydrogen, C1- to C10-alkyl, C6- to C15-aryl, alkylaryl or arylalkyl, each having 1 to 10 carbon atoms in the alkyl radical and 6 to 20 carbon atoms in the aryl radical, R2 to R4 are each hydrogen, halogen, C1- to C10-alkyl, C6- to C15-aryl, alkylaryl, arylalkyl, alkoxy, aryloxy or dialkylamino, each having 1 to 10 carbon atoms in the alkyl radical and 6 to 20 carbon atoms in the aryl radical, r is an integer from 1 to 4 and s, t and u are each an integer from 0 to 3, the sum r+s+t+u corresponding to the valency of M1, with an organic or inorganic carrier material in the presence of an inert solvent and, in a subsequent step, reacting the suspension thus obtained with a metallocene complex of the formula III: where:M is titanium, zirconium, hafnium, vanadium, niobium or tantalum, X is fluorine, chlorine, bromine, iodine, hydrogen or C1- to C10-alkyl, R8 to R12 are each hydrogen, C1- to C10-alkyl, 5- to 7-membered cycloalkyl, which in turn may carry C1- to C10alkyl as a substituent, C6- to C15-aryl or arylalkyl, it also being possible for two neighboring radicals together to be a cyclic group of 4 to 15 carbon atoms, or Si(R13)3, where R13 is C1- to C10-alkyl, C3 to C10-cycloalkyl or C6- to C15-aryl, where R14 to R18 are each hydrogen, C1- to C10, 5- to 7-membered cycloalkyl, which in turn may carry C1- to C10-alkyl as a substituent, C6- to C15-aryl or arylalkyl, it also being possible for two neighboring radicals together to be a cyclic group of 4 to 15 carbon atoms, or Si(R19)3, where R19 is C1- to C10-alkyl, C6 to C10-aryl or C3- to C10-cycloalkyl, or R11 and Z together form a group â€”R20â€”Aâ€”, where where R21, R22 and R23 are identical or different and are each hydrogen, halogen, C1-C10-alkyl, C1-C10-fluoroalkyl, C6-C10-aluoroaryl, C6-C10-aryl, C1-C10-alkoxy, C2-C10-alkenyl, C7-C40-arylalkyl, C8-C40-arylalkenyl or C7-C40-alkylaryl, or two neighboring radicals, together with the atoms linking them, for a ring, M3 is silicon, germanium or tin, R24 is C1- to C10-alkyl, C6- to C15-aryl, C3- to C10-cycloalkyl, alkylaryl or Si(R25)3, and R25 is hydrogen, C1- to C10-alkyl, C6- to C15-aryl, which in turn may be substituted by C1- to C4-alkyl, or C3- to C10-cycloalkyl or R11 and R17 together form a group â€”R20â€”, and a coordination complex compound selected from the group consisting of the neutral Lewis acids, ionic compound having Lewis acid cations and ionic compounds having BrÃ¶nsted acids as cations, in which process the solvent is not removed after the first step and the subsequent step is carried out without isolation of the pretreated carrier material thus obtained.