Patent ID: 7718745

Claim:
A method for the production of an olefin polymer comprising: (a) providing a catalyst system having a catalyst component characterized by formula I: R″(CpR q )XR′MQ 2 (I) wherein: Cp is a cyclopentadienyl ring; R″ is a structural bridge between Cp and X imparting stereorigidity to the component; each R is the same or different and is selected from a hydrocarbyl group having from 1-20 carbon atoms, a halogen, an alkoxy group, an alkoxyalkyl group, and alkylamino group or an alkylsilylo group and at least one group R is positioned on the Cp ring at a position distal to the bridge R″, which group R comprises a bulky group of the formula ZR* 3 in which Z is an atom from Group 14 of the Periodic Table, and each R* is the same or different and is a hydrogen or a hydrocarbyl group having from 1-20 carbon atoms; q is an integer from 1-4; X is a heteroatom from Group 15 or 16 of the Periodic Table; M is a metal atom from Group 4 of the Periodic Table; R′ is a hydrogen or a hydrocarbyl having from 1-20 carbon atoms; and each Q is a hydrocarbon having from 1-20 carbon atoms or is a halogen; characterized in that the catalyst component comprises at least one alkyl moiety having a terminal olefin group selected from a ω-ethylenyl, ω-propylenyl, ω-pentylenyl, ω-hexylenyl, ω-heptylenyl, ω-octylenyl, ω-nonylenyl, or a ω-decylenyl group, wherein the alkyl moiety having a terminal olefin group is a substituent on at least one of R″, Cp and X in the complex of formula I; (b) contacting said catalyst system with at least one olefin monomer to produce an olefin polymer; and (c) recovering said olefin polymer.