A catalyst system useful for polymerizing olefins is disclosed. The catalyst system comprises an activator and a bimetallic complex that incorporates two Group 3 to 10 transition metal atoms, which may be the same or different, and a neutral or anionic indigoid ligand. By proper selection of the indigoid skeleton and by modifying its substituents and transition metal centers, polyolefin makers can fine-tune the bimetallic complexes to control activity, enhance comonomer incorporation, and optimize polymer properties.
本发明公开了一种用于聚合烯烃的催化剂体系。 该催化剂体系由活化剂和双
金属复合物组成,双
金属复合物包含两个 3 至 10 族过渡
金属原子(可以相同或不同)和一个中性或阴离子靛蓝
配体。 通过适当选择
靛红骨架和修改其取代基和过渡
金属中心,聚烯烃制造商可对双
金属复合物进行微调,以控制活性、提高共聚物掺入量并优化聚合物性能。