Sumitomo Chemical Company, Limited

Yoshinori Seki

Masayuki Fujita

Tatsuya Miyatake

Nobuo Oi

Tsuyoshi Watanabe

Masaaki Nabika

Wataru Hirahata

Hiroyoshi Nakajima

A modified aluminum oxy compound (A) obtained by reacting an aluminum oxy compound (a), water (b) and a compound having a hydroxyl group (c); a polymerization catalyst component comprising the modified aluminum oxy compound; a polymerization catalyst obtained by contacting said modified aluminum oxy compound (A), a transition metal compound (B) and optionally an organoaluminum compound (C) and a specified boron compound; and a process for producing an olefin polymer or an alkenyl aromatic hydrocarbon polymer with the polymerization catalyst.

Modified aluminum oxy compound, polymerization catalyst and process for producing olefin polymer and alkenyl aromatic hydrocarbon polymer

A catalyst for addition polymerization obtained by contacting (A) an organoaluminum compound, (B) a specific boron compound and (C) a solid inorganic compound, and a process for producing an addition polymer characterized by polymerizing an addition-polymerizable monomer in the presence of the catalyst.

Catalyst for addition polymerization, and process for producing addition polymer with the same

Modified aluminum oxy compound, polymerization catalyst and process for producing olefin polymer and alkenyl

Process for producing solid product, solid catalyst component, and catalyst for olefin polymerization, and process for producing olefin polymer

A modified aluminum oxy compound(A) obtained by reacting an aluminum oxy compound(a), water (b) and a compound having a hydroxyl group(c); a polymerization catalyst component comprising the modified aluminum oxy compound; a polymerization catalyst obtained by contacting said modified aluminum oxy compound(A), a transition metal compound(B) and optionally an organoaluminum compound(C) and a specified boron compound; and a process for producing an olefin polymer or an alkenyl aromatic hydrocarbon polymer with the polymerization catalyst.

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Ichihara, Japan

Yoshinori Seki