Showa Denko Kabushiki Kaisha

Showa Denko K.k.

Hideki Tamano

Kiwami Hirota

Shintaro Inazawa

Fumio Sakaguchi

Yuzo Saitoh

A process of producing an olefin polymer by polymerizing an olefin in a multi-stage polymerization in the presence of a catalyst composed of a solid catalyst component containing a halogen and titanium, and an organoaluminum compound, while adding, to a reaction vessel for conducting a second-stage or later polymerization or a portion connecting a former part to a latter part, of the multi-stage polymerization reaction vessels,

Process for producing olefin polymer

A visbroken propylene-ethylene random copolymer and process for the manufacture thereof having the following characteristics:

Visbroken propylene-ethylene random copolymers, process and films

A process for polymerizing or co-polymerizing propylene in the presence of a catalyst consisting essentially of (A) a solid catalyst component which is prepared by contacting

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Oita, Japan

Hideki Tamano