Patent ID: 6894128

Claim:
A process of polymerizing olefin(s) to produce a polyolefin comprising contacting in a gas phase reactor olefins and catalyst composition comprising at least one activator, a Group 15 containing metal compound and a bulky ligand metallocene catalyst compound comprising zirconium, at a reaction temperature of from 30° C. to 120° C.; wherein raising or lowering the reaction temperature narrows or broadens the Mw/Mn of the polyolefin, respectively; and wherein the Group 15 containing metal compound is represented by the formula: wherein M is zirconium; each X is independently a leaving group; n is the oxidation state of M; m is the formal charge of the ligand comprising the YZL group; L, Y, and Z are each nitrogen atoms; R 1 and R 2 are independently a C 1 to C 20 hydrocarbon group, or a heteroatom containing group having up to twenty carbon atoms wherein R 1 and R 2 may be interconnected directly to each other; R 3 is absent or a hydrocarbon group, hydrogen, a halogen, or a heteroatom containing group; R 4 and R 5 are represented by the formula wherein R 8 to R 12 are each independently hydrogen, a C 1 to C 40 alkyl group, a halide, a heteroatom, or a heteroatom containing group containing up to 40 carbon atoms; and R 6 and R 7 are independently absent, or are hydrogen, an alkyl group, a halogen, a heteroatom or a hydrocarbyl group.