Patent ID: 8664461

Claim:
A process to produce a polyalpha-olefin (PAO), the process comprising contacting a catalyst, at least one activator, optionally at least one co-activator, and at least one monomer in a reactor, wherein the catalyst is represented by the following formula: wherein: M is a Group 4 transition metal; T is a bridging group; each X 1 and X 2 is independently selected from the group consisting of substituted or unsubstituted hydrocarbyl radicals having from 1 to 20 carbon atoms, hydrides, amides, alkoxides, sulfides, phosphides, halides, dienes, amines, phosphines, ethers, and a combination thereof, and X 1 and X 2 optionally form a part of a fused ring or a ring system; each X 1 and X 2 is independently selected from halides and methyl groups; JR* z-2 is a ligand comprising a heteroatom J, wherein the heteroatom J is an element with a coordination number of three from Group 15 or an element with a coordination number of two from Group 16; z is the coordination number of the element J; each R* is independently selected from the group consisting of substituted or unsubstituted hydrocarbyl radicals having from 1 to 20 carbon atoms, hydrides, amides, alkoxides, sulfides, phosphides, halides, dienes, amines, phosphines, ethers, and a combination thereof; and each R 1 , R 2 , R 3 , R 4 , R 5 , and R 6 is independently hydrogen, a substituted or unsubstituted hydrocarbyl group, or a heteroatom, provided that any adjacent R 1 , R 2 , R 3 , R 4 , R 5 , and R 6 groups optionally form a fused ring or multicenter fused ring system where the rings are optionally aromatic, partially saturated, or saturated; and wherein the molecular weight distribution, Mw/Mn, of the PAO produced is no greater than 1.65.