Patent ID: 6969748

Claim:
A process for the polymerization or copolymerization of olefins comprising activating a complex of the formula I: wherein Nu is selected from the group consisting of O, S, Nâ€”R 4 *, and Pâ€”R 4 *; M is Ni or Pd; h is an integer from 0 to 4; X are the same or different and are selected from the group consisting of a halogen, C 1 â€“C 8 -alkyl, C 3 â€“C 12 -cycloalkyl, C 7 â€“C 13 -aralkyl and C 6 â€“C 14 -aryl, R 1 , R 4 , R 4 * are the same or different and are selected from the group consisting of hydrogen, substituted or unsubstituted C 1 â€“C 18 -alkyl, substituted or unsubstituted C 2 â€“C 18 -alkenyl comprising from one to 4 isolated or conjugated double bonds bound via a single bond, substituted or unsubstituted C 3 â€“C 12 -cycloalkyl, C 7 â€“C 13 -aralkyl, unsubstituted or substituted C 6 â€“C 14 -aryl, and unsubstituted or substituted five- to six-membered nitrogen-containing heteroaryl radicals which are bound via a single bond; R 2 is an unsubstituted or substituted C 6 â€“C 14 -aryl, or an unsubstituted or substituted five- to six-membered nitrogen-containing heteroaryl radical; R 3 , R 8 are each selected from the group consisting of C 1 â€“C 18 -alkyl, substituted or unsubstituted C 2 â€“C 18 -alkenyl comprising from one to 4 isolated or conjugated double bonds, substituted or unsubstituted C 3 â€“C 12 -cycloalkyl, C 7 â€“C 13 -aralkyl, unsubstituted or substituted C 6 â€“C 14 -aryl, and a unsubstituted or substituted five- to six-membered nitrogen-containing heteroaryl radical; wherein adjacent radicals R 1 to R 4 or R 4 * may be joined to one another to form a 5- to 12-membered ring which may comprise a substituent selected from the group consisting of substituted or unsubstituted C 1 â€“C 8 -alkyl, substituted or unsubstituted C 2 â€“C 8 -alkenyl comprising from one to 4 isolated or conjugated double bonds, substituted or unsubstituted C 3 â€“C 12 -cycloalkyl, C 7 â€“C 13 -aralkyl, and C 6 â€“C 14 -aryl; L 1 is an uncharged, organic or inorganic ligand; to yield an activated complex and contacting the olefins with the activated complex.