The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 12, 2012
Filed:
Oct. 28, 2008
Toshiaki Matsuo, Hitachi, JP;
Masayuki Kamikawa, Hitachi, JP;
Kenichiro Oka, Hitachi, JP;
Naruyasu Okamoto, Tokyo, JP;
Ryuji Kajiya, Tokyo, JP;
Toshiaki Matsuo, Hitachi, JP;
Masayuki Kamikawa, Hitachi, JP;
Kenichiro Oka, Hitachi, JP;
Naruyasu Okamoto, Tokyo, JP;
Ryuji Kajiya, Tokyo, JP;
Hitachi Plant Technologies, Ltd., Tokyo, JP;
Abstract
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.