Nippon Steel Chemical Co., Ltd.

Yoshitaka Sakamaki

Masanari Fujita

Akifumi Hayakawa

Toshio Fujita

Hitoshi Sugawara

Hiroyuki Shibata

Minoru Goto

Process for preparing rubber-modified styrene resins

This invention relates to a polymerization reaction apparatus which is composed of a vertical cylindrical vessel, a rotating shaft inside the vessel, a plurality of agitating blades attached to the shaft, and a large number of plate-like heat transfer elements attached to the inner wall of the vessel, disposed radially between the agitating blades, and internally equipped with a passage for a heat transfer fluid, and in which apparatus a polymerizing mass passes through a gap between the rotating shaft, the agitating blades, and a large number of the plate-like heat transfer elements and exchanges heat with a heat transfer fluid circulating inside the plate-like heat transfer elements, effecting uniform removal of the reaction heat or uniform heating of the polymerizing mass and preventing vertical mixing.

Polymerization reaction apparatus

Growing community of inventors

Kimitsu, Japan

Yoshitaka Sakamaki