| 摘要 |
A catalyst component for olefin polymerization composed of a solid component (IV) and capable of affording a supported type catalyst composed of large particles and having a sharp particle size distribution is provided, which solid component (IV) is obtained by step A of reacting an organic Mg compound of a specified formula with a 1-20C saturated or unsaturated mono- or polyhydric alcohol +E,crc/C/ in the presence of CO2 +E,crc/b/ ; step B of reacting the resulting component A, with a Ti halide (IV) and/or a vanadyl halide and/or a V halide and/or a halogenated silane +E,crc/d/ and an organic B compound of a specified formula or a siloxane compound of a specified formula or a silane compound having Si-O-Si bond; Step C of reacting the resulting solid product (I) with a 1-20C saturated or unsaturated mono- or polyhydric alcohol +E,crc/f/ , an electron donor +E,crc/g/ and a cyclic ether +E,crc/h/ ; and step D of reacting the resulting solid product (II) with component B +E,crc/i/ comprising Ti halide and/or vanadyl halide and/or V halide and/or halogenated silane, followed by reacting the resulting solid product (III) with component B +E,crc/j/ and an electron donor +E,crc/k/ .
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