Patent ID: 7285606
Filing Date: 2007-10-23
Classification: C07F,C08F

Abstract:
1. A process for the polymerization of at least one aliphatic C 2-20 or aromatic C 4-20 hydrocarbyl mono- or multiolefin in the presence of a catalyst and a boron comprising co-catalyst, wherein the catalyst comprises a composition of an organometallic reagent, a spectator ligand (SH) and optionally at least one equivalent of a hydrocarbylating agent, and the organometallic reagent is represented by ML j X p , wherein M is a metal from group 3-11, or the lanthanide series, X is a monoanionic ligand bonded to M, L is a neutral ligand bonded to M, j represents an integer denoting the number of neutral ligands L, and p is the valence of the metal M and the spectator ligand is an imine ligand, or the HA adduct thereof, wherein HA represents an acid, of which H represents its proton and A its conjugate base.