Title:
溶媒含有ポリカーボネート溶液を脱気する装置および方法
Document Type and Number:
Japanese Patent JP5752680
Kind Code:
B2
Abstract:
The device has a down pipe evaporator (15) combined with an evaporating extruder i.e. double screw extruder. The down pipe evaporator is directly arranged over the extruder, and water vapor lines (17) are attached to the down pipe evaporator. The evaporator consists of a tube bundle-heat exchanger with tubes, which are heated outwardly. The extruder comprises degassing zones in a conveyor direction. The down pipe evaporator is heated by condensed water vapor by a condensed organic heat medium or a fluid organic heat medium. An independent claim is also included for a method for removing gas from polycarbonate solutions containing solution.
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Inventors:
Thomas Koenig
Clemens Cole Gruber
Rene De Crane
Johann Faes
Johann van den einde
Dirk van Mailfenne
Clemens Cole Gruber
Rene De Crane
Johann Faes
Johann van den einde
Dirk van Mailfenne
Application Number:
JP2012512254A
Publication Date:
July 22, 2015
Filing Date:
May 26, 2010
Export Citation:
Assignee:
Bayer MaterialScience AG
International Classes:
C08G64/40; B29C48/285; B29C48/40; B29C48/405; B29C48/76; B29C48/03; B29C48/29
Domestic Patent References:
| JP2003530468A | ||||
| JP2002047350A | ||||
| JP2007533766A | ||||
| JP2003525317A | ||||
| JP2005068434A | ||||
| JP56053104A |
Attorney, Agent or Firm:
Hirohito Katsunuma
Hiroshi Sorimachi
Mitsuo Tanaka
Takuji Yamada
Yuko Goto
Hiroshi Sorimachi
Mitsuo Tanaka
Takuji Yamada
Yuko Goto