Catalysts and catalyst systems useful for the olefin polymerization and copolymerization, and their synthesis procedure and usage are disclosed. These catalyst are a kind of novel complexes formed by transition metal from group 3 to group 11 and multidentate ligand, wherein the catalysts have the following formula:
本发明公开了用于烯烃聚合和共聚的催化剂和催化剂体系及其合成过程和用途。这些催化剂是一种由第 3 族至第 11 族过渡
金属和多叉
配体形成的新型配合物,其中催化剂具有下式: