Patent ID: 7651969

Claim:
A process of forming a catalyst composition (A), comprising: forming a solid intermediate (B) by reacting a magnesium metal with an alkyl halide in the presence of an alkoxy aluminum represented by formula Al(OR a ) 3 , a silicon halide represented by formula SiX 4 and an alkoxy silane represented by formula Si(OR b ) 4 , wherein R a and R b are an aromatic or aliphatic alkyl group and wherein X is a halide; synthesizing an alkyl metal (C) by reacting alkylaluminum compounds represented by formula AlR c 3 with a secondary amine having formula HNR d 2 and then by reacting with alkyl magnesium compounds represented by formula R e MgR f , wherein R c , R d , R e and R f are an aromatic or aliphatic alkyl group; forming a complex by contacting the solid intermediate (B) with an aluminum compound represented by formula X 3-n Al(OY) n , and the alkyl metal(C), wherein X is a halide, Y is a hydrocarbon group or chelating carbonyl group, and wherein 1 is less than or equal to n which is less than or equal to 3; and then contacting the complex with a titanium halide having formula TiX 4 wherein X is a halide.