发明名称 |
METHOD OF PRODUCING AROMATIC POLYCARBONATE |
摘要 |
PROBLEM TO BE SOLVED: To provide an industrial method of producing an aromatic polycarbonate by melt polycondensing process having excellent color and less discoloration and molecular weight degradation even at a high temperature exceeding 380 deg.C. SOLUTION: The method of producing an aromatic polycarbonate comprises polymerization in melt state of an aromatic dihydroxy compound and a diaryl carbonate, wherein the diaryl carbonate contains (1) 200 wt.ppm or less of water, (b) 1 wt.ppm or less of aluminum and (c) 1 wt.ppm or less of p- phenoxyphenyl phenyl carbonate.
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申请公布号 |
JP2002037878(A) |
申请公布日期 |
2002.02.06 |
申请号 |
JP20000229184 |
申请日期 |
2000.07.28 |
申请人 |
ASAHI KASEI CORP |
发明人 |
KOMIYA KYOSUKE;TOJO MASAHIRO |
分类号 |
C08G64/30;C08G64/04;(IPC1-7):C08G64/30 |
主分类号 |
C08G64/30 |
代理机构 |
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