To provide an excellent reaction vessel suitable for reactions, particularly, solution polymerization process and bulk polymerization process, producing no abnormally reacted portion and capable of exerting enough shear at the initial stage at the beginning or end of polymerization and, in some cases, even at the time of washing the reaction vessel with, e.g. solvents., through setting e.g. an agitating blade in close proximity to a turning blade or a heat exchanger.
This reaction vessel is a cylindrical reaction vessel having a long structure in the direction of liquid flow with an entrance and exit for liquid flow, and has an agitating shaft and at least one agitating blade in the form of a plate or bar extending practically perpendicular to the shaft and also has an internal structure consisting of, e.g. a turning blade in the form of a plate or bar, or their combination, or a heat exchanger in the form of a coil, tube, plate or spiral within the vessel, wherein, the blade is in close proximity to the internal structure mentioned above, and the distance between them is ≤50 mm and the natural frequency of the blade is ≥40 Hz.
IWAMOTO SO
SUGIMOTO RYUICHI
HONDA YOSHIYA
SHIRAFUJI TOMOFUMI
