Patent ID: 6784261
Filing Date: 2004-08-31
Classification: C07F,C08F

Abstract:
A catalyst system containing(A) at least one imidochromium compound, which can be obtained by a process encompassing the following process steps: (a) contacting a dioxochromium compound with an N-sulfinyl compound R1â€”N&boxH;S&boxH;O or R2â€”N&boxH;S&boxH;O, wherein the variables have the following meaning: R1 is C1-C20-alkyl, C2-C20-alkenyl, C6-C20-aryl, alkylaryl having 1 to 10 carbon atoms in the alkyl radical and 6 to 20 carbon atoms in the aryl radical, whereby the organic radical R1 optionally have inert substituents, or SiR33; R2 is for R3C&boxH;NR4, R3C&boxH;O, C&boxH;O(OR4), R3C&boxH;S, (R3)2P&boxH;O, (OR3)2P&boxH;O, SO2R3, R3R4C&boxH;N, NR3R4 or BR3R4; R3 and R4 independent of each other, are C1-C20-alkyl, C2-C20-alkenyl, C6-C20-aryl, alkylaryl having 1 to 10 carbon atoms in the alkyl radical and 6 to 20 carbon atoms in the aryl radical, hydrogen if the latter is bonded to a carbon atom, whereby the organic radicals R3 and R4 can also have inert substituents; (b) contacting the reaction product thus obtained with chlorine if a sulfinyl compound R1â€”N&boxH;S&boxH;O was used and, in case an N-sulfinyl compound R2â€”N&boxH;S&boxH;O was used, with chlorine of sulfurylchloride or with no other reagent; (B) at least one activator compound and (C) optionally, one or more additional catalysts.