The present invention generally relates to a process that selectively polymerizes ethylene in the presence of an alpha-olefin, and to a metal-ligand complex (precatalyst) and catalyst useful in such processes, and to related compositions. The present invention also generally relates to ligands and intermediates useful for preparing the metal-ligand complex and to processes of their preparation.
本发明通常涉及在α-烯烃存在下选择性聚合
乙烯的过程,以及用于此类过程的
金属
配体复合物(预催化剂)和催化剂,以及相关组合物。本发明还通常涉及用于制备
金属
配体复合物的
配体和中间体,以及其制备过程。