| 摘要 |
PROBLEM TO BE SOLVED: To provide an olefin polymerization catalyst that has a high catalyst activity and a good stereospecificity, and to provide a combined catalyst containing the same, wherein polymers prepared from the combined catalyst have a good particle morphology and little fine powder.SOLUTION: An olefin polymerization catalyst comprises a product obtained by the reaction of, as raw materials, a magnesium dialkoxide, a titanium compound, an electron donor compound A of a disulfonyl-containing compound, and an electron donor compound B selected from an ester compound and ether compound. The olefin polymerization catalyst comprises the catalyst and an organoaluminium compound and can comprise an organosilicon compound.SELECTED DRAWING: None |
