A catalyst system comprising a transition metal compound (A) having at least one of a cyclopentadienyl group or a substituted cyclopentadienyl group and at least one of a cyclic ligand containing a hetero atom and having a delocalised π bond, and an organoaluminum compound (B), or (A), (B) and a compound (C) forming an ionic complex by reacting with a transition metal compound; and a process for preparing an olefin polymer using said catalyst system.
一种催化剂体系,包括具有至少一个
环戊二烯基团或取代
环戊二烯基团的过渡
金属化合物(A)和至少一个含有杂原子并具有脱位π键的环状
配体,以及
有机铝化合物(B),或(A)、(B)和化合物(C)通过与过渡
金属化合物反应形成离子络合物;以及使用所述催化剂体系制备烯烃聚合物的工艺。