Polymeric ligands, polymeric metallocenes, and processes for preparing same
are provided. The process for preparing polymeric metallocenes comprises
reacting a polymeric ligand, a transition metal compound, and an alkali
metal compound. In one embodiment, a process for preparing polymeric
ligands comprises reacting at least one bridged cyclopentadienyl-type
monomer and an initiator under polymerization conditions. In another
embodiment, a polymeric ligand is represented by the formula [Q'].sub.n,
wherein Q' is a unit containing at least one bridged cyclopentadienyl-type
group and wherein n is 1-5000. In another embodiment, a polymeric
metallocene is represented by the formula [Q"MX.sub.m ].sub.n, wherein Q"
is a unit containing at least one fluorenyl-type group, M is a transition
metal, each X is individually a hydrocarbyl group containing 1 to 20
carbon atoms, an alkoxy group containing 1 to 12 carbon atoms, an aryloxy
group containing 6 to 20 carbon atoms, a halide, or hydride, m is 2 or 3,
and wherein n is 1-5000. Other aspects of the present invention include a
catalyst system comprising the polymeric metallocene and an
organoaluminoxane, a method for preparing same, and a polymerization
process employing the catalyst system.