Olefin polymerization catalysts containing benzothiazole

Abstract

A novel metallocene catalyst for the polymerization of olefin (co)polymers is of the general formula: Benzothiazole--E--M--X.sub.m L.sub.n where, M is a transition metal of Groups 3-10 of the Periodic Table; E is sulfur or oxygen; E being bond to the transition metal and to the carbon atom between sulfur and nitrogen of the benzothiazole moiety; L is a polymerization-stable anionic ancillary ligand; X is a halogen, alkoxy from C.sub.1 to C.sub.20, siloxy from C.sub.1 to C.sub.20, N(R.sub.1).sub.2, a hydrocarbyl group containing up to about 12 carbon atoms or hydrogen or mixtures thereof; preferably X is halogen, methoxy, ethoxy or siloxy (R.sub.1).sub.3 SiO--, where R.sub.1 is alkyl from C.sub.1 to C.sub.20 ; and m+n equals the valency of the M minus 1.

Dependencies are inferred from the claim text.