Patent ID: 7871953

Claim:
An olefin polymerization or oligomerization catalyst system comprising the reaction product of: (a) an activator selected from the group consisting of alumoxane, aluminum alkyl, alkyl aluminum halide, alkylaluminum alkoxide, boron compounds, hexafluoro phosphorus compounds, hexafluoro antimony compounds, and hexafluoro arsenic compounds; and (b) a catalyst precursor having the following formula: wherein: (i) M is Ni, Fe, Co, Pd, or Pt; (ii) N is nitrogen and is bonded to M; (iii) P is phosphorus and is bonded to M; (iv) R 1 and R 2 are independently selected from the group consisting of methyl, ethyl, propyl, butyl, pentyl, hexyl, heptyl, octyl, nonyl, decyl, undecyl dodecyl, cyclobutyl, cyclohexyl, phenyl, benzyl, phenethyl, tolyl, cyclopentyl, cycloheptyl, cyclooctyl, cyclononyl, cyclodecyl, and cyclododecyl; (v) R 3 and R 4 are independently selected from the group consisting of methyl, ethyl, propyl, butyl, pentyl, hexyl, heptyl, octyl, nonyl, decyl, undecyl dodecyl, cyclobutyl, cyclohexyl, phenyl, benzyl, phenethyl, tolyl, cyclopentyl, cycloheptyl, cyclooctyl, cyclononyl, cyclodecyl, cyclododecyl and substituents represented by the formulas: where R′ are independently, hydrogen or C 1 -C 50 hydrocarbyl radicals, and any two adjacent R′ may independently be joined to form a saturated or unsaturated cyclic structure; (vi) Y is butenyl or has one of the following formulas: where: (a) R′ are independently hydrogen or C 1 -C 50 hydrocarbyl radicals; (b) A is a non-hydrocarbon atom functional group; (c) E is a Group-14 element; (d) x is an integer from 1 to 4; and (e) y is an integer from 0 to 4; and (vii) X are independently selected from the group consisting of chloride, bromide, iodide, methyl, ethyl, propyl, butyl, pentyl, hexyl, heptyl, octyl, nonyl, decyl, undecyl, dodecyl, methoxide, ethoxide, dimethylamide, diethylethoxide, and phenoxide, wherein the olefin polymerization or oligomerization catalyst system exhibits an activity that exceeds 8000 moles of ethylene per mole of M per hour.