| http://www.w3.org/ns/prov#value | - ected from the group consisting of hydrocarbyl or hydrocarbyloxy radicals having 1 to 20 carbon atoms and halogens; at least one Q is a halogen; and k is a number corresponding to the valence of Me; to produce the corresponding bridged metallocene; and using said metallocene with a cocatalyst to polymerize an alpha olefin containing at least three carbons per molecule.
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