GROUP IIIB METAL COMPLEX WITH CONSTRAINED GEOMETRY FLUORENYL-BASED LIGAND

摘要

PROBLEM TO BE SOLVED: To form a bridged half-sandwich type metallocene component based on a heteroatom-fluorenyl ligand and also based on a group IIIb metal of the periodic table; and to provide a catalyst component effective on the controlled polymerization of styrene, and a catalyst component having capability to form poly(methylmethacrylate).

SOLUTION: Styrene, methylmethacrylate, and the like are polymerized by a polymerization catalyst containing the metallocene catalyst component based on a group IIIb metal of the periodic table and a bridged heteroatom-fluorenyl ligand.

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