Catalysts useful for polymerizing olefins are disclosed. The catalysts comprise an activator and a Group 4 metal complex that incorporates a dianionic, tridentate 2-aryl-8-anilinoquinoline ligand. In one aspect, supported catalysts are prepared by first combining a boron compound having Lewis acidity with excess alumoxane to produce an activator mixture, followed by combining the activator mixture with a support and the tridentate, dianionic Group 4 metal complex. The catalysts are easy to synthesize, support, and activate, and they enable facile production of high-molecular-weight polyolefins.
披露了用于聚合
烯烃的
催化剂。这些
催化剂包括一个活化剂和一个含有二阴离子、三齿的2-芳基-8-
苯胺喹啉配体的第4族
金属配合物。在一方面,通过首先将具有
路易斯酸性的
硼化合物与过量的
铝氧烷混合以产生活化剂混合物,然后将该活化剂混合物与载体和三齿、二阴离子的第4族
金属配合物结合,来制备支撑
催化剂。这些
催化剂易于合成、支撑和活化,并且能够容易地生产高分子量的聚
烯烃。