Patent ID: 6946531

Claim:
A polymerization process comprising contacting one or more addition polymerizable monomers selected from the group consisting of ethylene and one or more C 4-10 α-olefins under polymerization conditions including a temperature from 95 to 160° C. with a catalyst composition comprising a metal complex corresponding to the formula: wherein, Ar is an aryl group of from 6 to 30 atoms not counting hydrogen; R independently each occurrence is hydrogen, Ar, or a group other than Ar selected from hydrocarbyl, trihydrocarbylsilyl, trihydrocarbylgermyl, halide, hydrocarbyloxy, trihydrocarbylsiloxy, bis(trihydrocarbylsilyl)amino, di(hydrocarbyl)amino, hydrocarbadiylamino, hydrocarbylimino, di(hydrocarbyl)phosphino, hydrocarbadiylphosphino, hydrocarbylsulfido, halo-substituted hydrocarbyl, hydrocarbyloxy-substituted hydrocarbyl, trihydrocarbylsilyl-substituted hydrocarbyl, trihydrocarbylsiloxy-substituted hydrocarbyl, bis(trihydrocarbylsilyl)amino-substituted hydrocarbyl, di(hydrocarbyl)amino-substituted hydrocarbyl, hydrocarbyleneamino-substituted hydrocarbyl, di(hydrocarbyl)phosphino-substituted hydrocarbyl, hydrocarbylenephosphino-substituted hydrocarbyl, or hydrocarbylsulfido-substituted hydrocarbyl, said R group having up to 40 atoms not counting hydrogen atoms; M is titanium; Z′ is SiR 6 2 , CR 6 2 , SiR 6 2 SiR 6 2 , CR 6 2 CR 6 2 , CR 6 ═CR 6 , CR 6 2 SiR 6 2 , BR 6 , BR 6 L″, or GeR 6 2 ; Y is —O—, —S—, —NR 5 —, —PR 5 —; —NR 5 2 , or —PR 5 2 ; R 5 , independently each occurrence, is hydrocarbyl, trihydrocarbylsilyl, or trihydrocarbylsilylhydrocarbyl, said R 5 having up to 20 atoms other than hydrogen, and optionally two R 5 groups or R 5 together with Y form a ring system; R 6 , independently each occurrence, is hydrogen, or a member selected from hydrocarbyl, hydrocarbyloxy, silyl, halogenated alkyl, halogenated aryl, —NR 5 2 , and combinations thereof, said R 6 having up to 20 non-hydrogen atoms, and optionally, two R 6 groups form a ring system; L″ is a monodentate or polydentate Lewis base optionally bonded to R 6 ; X is hydrogen or a monovalent anionic ligand group having up to 60 atoms not counting hydrogen; L independently each occurrence is a neutral ligating compound having up to 20 atoms, other than hydrogen, and optionally L and X are bonded together; X′ is a divalent anionic ligand group having up to 60 atoms other than hydrogen; z is 0, 1 or 2; x is 0, 1, 2, or 3; l is a number from 0 to 2, and x′ is 0 or 1, to prepare a polymer having a melt index greater than 1.0 and a comonomer incorporation greater than 5 weight percent.