Process for producing alpha-olefin polymer

Abstract From the Canadian patent

A solid catalyst component containing a trivalent titanium compound, which is obtained by reducing a titanium compound represented by the general formula Ti(OR1)nX4-n (wherein R1 is a hydrocarbon group of 1 to 20 carbon atoms; X is a halogen atom; and n is a number satisfying O<n?4) with an organomagnesium compound in the presence of an organosilicon compound having at least one Si-O bond and a silica gel having a pore volume of, at a pore radius of 75 to 20,000 .ANG. at least 0.65 ml/g to obtain a solid product treating, the solid product with an ester compound and treating, the ester-treated solid with a mixture of an ether compound and titanium tetrachloride; a catalyst system …