Title:
【発明の名称】芳香族ポリカーボネート樹脂の製造方法
Document Type and Number:
Japanese Patent JP3174067
Kind Code:
B2
Abstract:
PCT No. PCT/JP97/01172 Sec. 371 Date Dec. 11, 1997 Sec. 102(e) Date Dec. 11, 1997 PCT Filed Apr. 4, 1997 PCT Pub. No. WO97/38039 PCT Pub. Date Oct. 16, 1997A process for producing an aromatic polycarbonate resin by melt polycondensing an aromatic dihydroxy compound and an aromatic carbonic acid diester, wherein a mixture solution comprising the same aromatic monohydroxy compound as a aromatic monohydroxy compound by-produced from a reaction system as a main component and a freezing-point depressant for the aromatic monohydroxy compound, such as a glycol, is used as a scrubbing solution for the recovery of the by-produced aromatic monohydroxy compound by a scrubber type condenser.
Inventors:
Tetsuro Miyauchi
Toru Sawaki
Katsuji Sasaki
Toru Sawaki
Katsuji Sasaki
Application Number:
JP53605097A
Publication Date:
June 11, 2001
Filing Date:
April 04, 1997
Export Citation:
Assignee:
Teijin Limited
International Classes:
C08G64/30; C08G64/40; (IPC1-7): C08G64/30
Domestic Patent References:
| JP665367A |
Other References:
【文献】米国特許5444148(US,A)
Attorney, Agent or Firm:
Sumihiro Maeda
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