Preparation of catalyst system useful for olefin polymerization involves bringing complex of late transition metal of the periodic table of the elements and aluminoxane into contact with one another and adding boron compound

摘要

Preparation (M1) of a catalyst system for olefin polymerization involves bringing complex (a) of a transition metal of groups 8 - 10 of the periodic table of the elements, aluminoxane (b) into contact with one another and adding boron compound (c). Preparation of a catalyst system for olefin polymerization involves bringing complex (a) of a transition metal of groups 8 - 10 of the periodic table of the elements, aluminoxane (b) into contact with one another, and adding boron compound (c) of formula (R1)a-B-(OR2)b (I). R11-40C organic radical; R2H or 1-40C organic radical bound via carbon atom; a,b : 1 or 2;and a+b : 3.