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.
本文披露了用于聚合烯烃的催化剂。该催化剂包括一个活化剂和一个含有二阴离子、三齿2-芳基-8-苯胺基喹啉配体的四价金属络合物。在一个方面,通过首先将具有Lewis酸性的硼化合物与过量的氧化铝烷混合来制备活化剂混合物,然后将活化剂混合物与载体和三齿、二阴离子的四价金属络合物相结合来制备支持的催化剂。这些催化剂易于合成、支持和活化,并且能够轻松生产高分子量的聚烯烃。