Asahi Kasei Kogyo Kabushiki Kaisha

Masayasu Furusato

Hisaya Sakurai

Tadashi Ikegami

Yoshihiko Katayama

Hideo Morita

Katsuaki Maeda

A catalyst useful for polymerizing olefins which comprises a solid catalyst component [A] and an organometallic component [B], the solid catalyst component [A] being obtained by reacting (1) an organometallic compound with (2) a transition metal compound selected from the group consisting of a titanium compound, a vanadium compound, a mixture of a titanium compound and a vanadium compound and a mixture of a titanium compound and a zirconium compound, in the presence of (3) a solid reaction product of (a) an organomagnesium compound of the formula

Polymerization of olefins

Olefin polymerization catalyst and a process for producing polyolefins

A catalyst suitable for polymerizing an .alpha.-olefin, comprising a solid catalyst component [A] and an organometal compound [B], the solid catalyst component [A] being prepared by reacting an organomagnesium compound (1) soluble in a hydrocarbon medium and represented by the general formula,

Catalyst for producing polyolefins

A process for polymerizing an .alpha.-olefin comprising contacting the olefin in liquid phase at a temperature of about 120.degree. to about 320.degree. C. with a catalyst comprising a component (A) and an organometal component (B), the component (A) being produced by reacting a hydrocarbon-soluble organomagnesium component (i) of the formula,

Process for polymerizing an .alpha.-olefin

A catalyst for the solution polymerization of .alpha.-olefins is prepared by admixing component (A) with an organometal component (B), component (A) being prepared by reacting a specific hydrocarbon-soluble organomagnesium compound with an aluminum compound and contacting the obtained product with a titanium and/or vanadium compound.

Polymerization of .alpha.-olefins

A process for polymerizing an .alpha.-olefin comprising contacting the olefin in liquid phase at a temperature of about 120.degree. to about 320.degree. C. with a catalyst comprising a component (A) and an organometal component (B), the component (A) being produced by reacting a hydrocarbon-soluble organomagnesium component (i) of the formula

Polymerization of an .alpha.-olefin

A process for polymerizing an .alpha.-olefin comprising contacting the olefin in liquid phase at a temperature of about 120.degree. to 320.degree. C. with a catalyst comprising a component (A) and an organometal component (B), the component (A) being produced by reacting a hydrocarbon-soluble organomagnesium component (i) of the formula,

Process for polymerizing .alpha.-olefins

A method for producing an organomagnesium complex which is soluble in an inert hydrocarbon medium and expressed by the general formula Mg.sub..alpha. Al.sub..beta. R.sup.1 .sub.p Y.sub.q is provided. In this formula

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Kurashiki, Japan

Masayasu Furusato