A solid catalyst component for polymerization of olefins, a method for preparing a solid catalyst component for polymerization of olefins, a catalyst for polymerization of olefins, a method for producing an olefin polymer, a method for producing a propylene-based copolymer, and a propylene-based copolymer

摘要

When polymerizing olefins, particularly when performing a copolymerization reaction such as random copolymerization or block copolymerization of propylene and ethylene, the adhesion due to the stickiness (tackiness) of the polymer particles is very low, the fluidity is excellent, and the particle size distribution is A solid catalyst component for polymerization of olefins capable of producing a good polymer is provided. It contains titanium, magnesium, a halogen atom and an internal electron donor, the pore volume distribution measured by the mercury intrusion method is multimodal, and the pore radius is in the range of 0.002 µm to 1 µm and the pore radius exceeds 1 µm and is 30 µm or less; Each has at least one peak top, and the ratio represented by the pore volume V1/ derived from the pores in the range of 0.002 μm to 1 μm in radius 1 / the pore volume V2 derived from the pores in the range of 30 μm or less in radius is 0.30 to 0.65 It is a solid catalyst component for polymerization of olefins, characterized in that.