Hitachi Plant Technologies, Ltd.

Ryuji Kajiya

Toshiaki Matsuo

Masayuki Kamikawa

Naruyasu Okamoto

Kenichiro Oka

The polymer degassing apparatus includes a barrel-shaped horizontal containerhaving a supply portfor supplying a reactant, a discharge portfor discharging a reactant, a stirring meansfor stirring a reactant, and a degassing means for drawing a gas via a degassing portof the horizontal container. The supply port is positioned below the molten liquid level of the reactant. A recovery containerthat is connected to the degassing port for recovering a volatile substance in the gas and a vacuum pumpare provided. The stirring means includes a plurality of stirring rodsoriented along the same direction as the axis in the horizontal container and coupling membersfor coupling the stirring rods along the same direction as the axis, provided that the coupling members are placed at a distance from the virtual rotation center of the stirring means.

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Tokyo, Japan

Ryuji Kajiya