Provided are a novel tetraarylborate compound, a catalyst composition including the same, and a method for preparing an ethylene homopolymer or an ethylene-α-olefin copolymer using the same. Specifically, the teraarylborate compound having excellent thermal stability, able to be completely dissolved in an aliphatic hydrocarbon-based solvent to facilitate the operation of commercial processes and effectively inducing the activation of a single active site catalyst, may be used as a catalyst activator to provide an ethylene-based copolymer selected from a high molecular weight ethylene homopolymer and ethylene-α-olefin copolymer having high catalyst activity.
本发明提供了一种新型四芳基
硼酸盐化合物、一种包括该化合物的催化剂组合物,以及一种使用该化合物制备
乙烯均聚物或
乙烯-α-烯烃共聚物的方法。具体而言,四芳基
硼酸盐化合物具有优异的热稳定性,能够完全溶解在脂肪烃基溶剂中,便于商业工艺操作,并能有效诱导单活性位点催化剂的活化,可用作催化剂活化剂,提供选自高分子量
乙烯均聚物和
乙烯-α-烯烃共聚物的
乙烯基共聚物,具有高催化剂活性。