| abstract |
A novel metallocene catalyst for the polymerization of olefin (co)polymers is of the general formula:Benzothiazole-E-M-XmLnwhere, 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 C1 to C20, siloxy from C1 to C20, N(R1)2, a hydrocarbyl group containing up to about 12 carbon atoms or hydrogen or mixtures thereof; preferably X is halogen, methoxy, ethoxy or siloxy (R1)3SiO-, where R1 is alkyl from C1 to C20; and m+n equals the valency of the M minus 1. |