| abstract |
PROBLEM TO BE SOLVED: To provide a method for producing an olefin polymer having a high melt tension and excellent moldability and suitable for large-size blow molding and the like. (A) At least two transition metal compounds belonging to Group 4 of the periodic table, and (B) an aluminum oxy compound (B- An olefin in the presence of an olefin polymerization catalyst containing at least one selected from the group consisting of 1) and an ionic compound (B-2) that can be converted to a cation by reacting with the above transition metal compound; Is a multistage polymerization method, comprising the step of polymerizing an olefin without using hydrogen in at least one polymerization step. |