| 摘要 |
A process for producing an olefin polymer which comprises the homopolymerizing or copolymerizing an olefin in the presence of a catalyst system composed of an organoaluminum compound and a hydrocarbyloxy group-containing solid catalyst component which is prepared by reducing a titanium compound represented by the general formula Ti(OR1)nX4-n, wherein R1 is a C1-C20 hydrocarbon radical, X is halogen, and n is a number defined as 0<n</=4, with an organoaluminum compound represented by the general formula AlR2mY3-m, wherein R2 is a C1-C20 hydrocarbon radical, Y is halogen, and m is a number defined as 1</=m</=3, subjecting the reduction product, which is a hydrocarbyloxy group-containing solid insoluble in hydrocarbon solvents, to a prelimary ethylene polymerization treatment, and treating the resultant solid in a state of slurry in a hydrocarbon solvent with an ether compound and titanium tetrachloride at a temperature of 30 DEG to 100 DEG C. |
