Patent ID: 10183960

Abstract:
A catalyst system comprising an N2-phosphinylamidine chromium salt complex having Structure PFHNPACr I: wherein Rf1, Rf2, Rf4, and Rf5 are independently selected from a perfluorohydrocarbyl group; and CrXp is a chromium salt; X is a monoanion, and p is an integer from 2 to 6. A process comprising a) contacting i) ethylene, ii) a catalyst system comprising an N2-phosphinylamidine chromium salt complex having Structure PFHNPACr I:  wherein each Rf1, Rf2, Rf4, and Rf5 are independently selected from a perfluorohydrocarbyl group and CrXp is a chromium salt; X is a monoanion and p is an integer from 2 to 6, and iii) optionally an organic reaction medium; and b) forming an oligomer product in a reaction zone.