Patent ID: 6887958

Claim:
A process for copolymerizing ethylene or propylene with one another or with other olefinically unsaturated compounds, which comprises carrying out in the polymerization in the presence of a catalyst system which comprises the following components: A) a complex of a transition metal with one or two substituted or unsubstituted 1,3,5-triazacyclohexane ligands, and B) one or more aluminoxane activator compounds, wherein the component (A) is a compound of the formula I in which: M is a transition metal of groups 4 to 12 of the Periodic Table, R 1 -R 9 are hydrogen or organosilicon or organic substituents having from 1 to 30 C atoms, it being possible for two geminal or vicinal radicals R 1 to R 9 radicals also be connected to form a 5- or 6-membered ring, and it being possible, when m is 2, for an R 1 -R 9 radical of in each case one triazacyclohexane ring to form together with a substituents on the other triazacyclohexane ring a bridge between the two rings, X is fluorine, chlorine, bromine, iodine, hydrogen, C 1 -C 10 -alkyl, C 6 -C 15 -aryl or alkylaryl having from 1 to 10 C atoms in the alkyl radical and from 6 to 20 C atoms in the aryl radical, trifluoroacetate, BF 4 â€”, PF 6 â€” or bulky noncoordinating anions, m is 1 or 2, n is a number from 1 to 4 which corresponds to the oxidation state of the transition metal M.