Patent 7098278 was granted and assigned to Rohm and Haas on August, 2006 by the United States Patent and Trademark Office.
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.