申请人:Equistar Chemicals, LP
公开号:US07858718B1
公开(公告)日:2010-12-28
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。