发明名称 STORAGE TANK FOR AROMATIC DIHYDROXY COMPOUND AND METHOD FOR PRODUCING AROMATIC POLYCARBONATE
摘要 PROBLEM TO BE SOLVED: To provide a technique for efficiently producing an aromatic polycarbonate having excellent color and a reduced amount of gels and foreign substances. SOLUTION: In the method for producing an aromatic polycarbonate by melt polycondensation of an aromatic dihydroxy compound with a carbonic diester, in order to store the particulate or bulk aromatic dihydroxy compound to be used as the raw material, a storage tank filled with a gas having an oxygen concentration of 0.0001-1 vol.% is used. COPYRIGHT: (C)2004,JPO
申请公布号 JP2003286337(A) 申请公布日期 2003.10.10
申请号 JP20020090468 申请日期 2002.03.28
申请人 TEIJIN LTD 发明人 IKEMURA YOSHIFUMI;MATSUOKA YUKI;SAWAKI TORU;SASAKI KATSUJI
分类号 C08G64/30;(IPC1-7):C08G64/30 主分类号 C08G64/30
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