Catalysts for olefin polymerization and methods for manufacturing olefin polymers

Abstract

This invention relates to a catalyst for olefin polymerization, characterized by comprising: (I) a solid catalyst component (a) and a solid catalyst component (b) for olefin polymerization, wherein the solid catalyst component (a) comprises at least magnesium, titanium, halogen, and a succinate diester compound as an internal electron-supplying compound, and the solid catalyst component (b) comprises at least magnesium, titanium, halogen, and a phthalate diester compound as an internal electron-supplying compound; (II) an organoaluminum compound; and (III) a compound selected from at least one of alkoxysilane compounds and at least one of (alkylamino)alkylsilane compounds as an external electron-supplying compound. According to this invention, a catalyst for olefin polymerization capable of producing olefin polymers with high rigidity and high impact resistance, and a method for manufacturing olefin polymers using the catalyst are provided.

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