Patent ID: 6573345
Filing Date: 2003-06-03
Classification: B01J,C07C,C07D,C07F,C08F

Abstract:
A process for forming a polyolefin comprising contacting at least one olefinic compound with a catalyst composition comprising a compound represented by the general formula: whereinR1 represents a C1-C11 alkyl; aryl; substituted aryl wherein the substitution group is selected from C1-C4 alkyl, perfluoroalkyl, nitro, sulfonate or halo group; arylalkyl; siloxyl (â€”OSiA3 where A is selected from phenyl or C1-C4 alkyl); nitro group; sulfonate group; or halo atom; R2 represents hydrogen atom, aryl, substituted aryl, C1-C11 alkyl, halogen atom or R1 and R2, together, provide a hydrocarbylene or substituted hydrocarbylene which forms an aromatic or non-aromatic carbocyclic ring; R3 represents hydrogen; R4 represents hydrogen atom, a C1-C11 alkyl; an aryl; substituted aryl group; or R3 or R4, together, provide a hydrocarbylene or substituted hydrocarbylene forming a non-aromatic carbocyclic ring; R5 represents a C1-C11 alkyl; C5-C8 cycloalkyl; aryl group; a substituted aryl having one or both ortho positions of the aromatic group substituted with a C1-C4 alkyl, the para position (with respect to the Nâ€”R5 bond) substituted with a hydrogen, nitro, trifluoromethyl, halogen, methoxy or C1-C4 alkyl or fused or unfused aryl; n represents an integer of 0 or 1; R6 represents, when n is 1, an unsubstituted or substituted aromatic group; a C1-C11 alkyl; a hydrogen atom or halogen atom or, when n is 0, R6 represents an allyl group or substituted allyl group; L represents a coordination ligand selected from triphenylphosphine, tri(C1-C6 alkyl) phosphine tricycloalkyl phosphine, diphenyl alkyl phosphine, dialkyl phenylphosphine, triphenoxyphosphine, trialkylamine, C2-C20 alkene, substituted C2-C5 alkene, diethyl ether, ethyl propyl ether, tetrahydrofuran, or a nitrile; and M represents a Group IV or VIII transition metal selected from Fe, Co, Ni, Ru, Rh, Pd, Os, Ir, Pt in the +2 oxidation state.