CATALYST COMPONENT FOR PRODUCING OLEFIN POLYMER, CATALYST FOR OLEFIN POLYMERIZATION, AND METHOD FOR PRODUCING THE OLEFIN POLYMER

摘要

PROBLEM TO BE SOLVED: To provide a catalyst component which is capable of conveniently producing an olefin polymer having a broad molecular weight distribution and a high melt tension, and being suitable for high speed stretch and high speed molding; and to provide a catalyst.SOLUTION: A solid titanium catalyst component for producing an olefin polymer comprises titanium, magnesium, halogen, and a specific cyclic ester compound (a) having a plurality of carboxylic acid esters.