A polymerization catalyst for the polymerization and copolymerization of
olefin monomers and the copolymerization of olefin monomers with other
monomers selected from, for example, norbornenes and styrenes are
disclosed. The polymerization catalysts disclosed contain a metal center
selected from Ti, Zr, Hf, Ni and Pd with at least one chelating ligand.