An unusually stable supported bis(cyclopentadienyl)titanium dichloride-trialkylaluminum catalyst system for ethylene polymerization

The simple synthesis of a MgCl 2 -supported Cp 2 TiCl 2 catalyst is reported. This catalyst shows significant activity for ethylene polymerization in the presence of trialkylaluminum and a kinetic behaviour distinctly different from that of an unsupported metallocene catalyst