Patent ID: 7863213

Claim:
A supported catalyst comprising: (a)(1) a support material; (a)(2) an organometal or metalloid compound wherein the metal or metalloid is selected from the group consisting of magnesium, zinc, boron, aluminum, germanium, tin, lead, and mixtures thereof; and (b) an activator compound comprising: (b)(1) a cation which is capable of reacting with a transition metal metallocene compound to form a transition metal complex which is catalytically active for the polymerization of alpha-olefins; (b)(2) a compatible anion having up to 100 nonhydrogen atoms and containing at least one substituent comprising a moiety having an active hydrogen; and (c) phosphinimine/substituted cyclopentadienyl organometallic complex according to the formula: wherein M is a group 4 metal; *Cp is a substituted eta-5 bonded cyclopentadienyl ligand which contains from 7 to 30 carbon atoms; PI is a phosphinimine ligand; L is a leaving group ligand; and n is 1 or 2, depending upon the valence of m, with the further provisos that: a) said catalyst contains from 1 to 2,000 mu.mol of activator compound per gram of support material; and b) *Cp is selected from the group consisting of 2-pentafluorophenyl cyclopentadienyl, tri-butyl-2- pentafluorophenyl cyclopentadienyl and 2-pentafluorophenyl indenyl.