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 for olefin polymerization containing at least magnesium, titanium, halogen, and an internal electron-supplying compound; (II) an organoaluminum compound; and (III) an external electron-supplying compound. The solid catalyst for olefin polymerization, as an internal electron-supplying compound, contains at least one compound selected from a first internal electron-supplying compound and at least one compound selected from a second internal electron-supplying compound; and as an external electron-supplying compound, contains at least one compound selected from alkoxysilane compounds and aminosilane compounds. According to this invention, a catalyst for olefin polymerization capable of producing olefin polymers with excellent melt flowability and high rigidity using a relatively small amount of hydrogen, and a method for manufacturing olefin polymers using the catalyst, are provided.