Ethylene-based polymer, manufacturing method of ethylene-based polymer and manufacturing method of catalyst for polymerization, and molded article of hollow plastics containing ethylene-based polymer and use thereof

摘要

An object of the invention is to provide an ethylene-based polymer excellent in moldability and durability, and also excellent in the balance of stiffness and durability, and to provide a molded product of hollow plastic using the ethylene-based polymer. The ethylene-based polymer according to the invention is an ethylene-based polymer having specific characteristics and manufactured by a homopolymerization of ethylene or a copolymerization of ethylene and α-olefin using a chromium catalyst.