摘要:
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 III to Group XI and multidentate ligand having the following formula:
摘要:
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: