发明名称 |
Process for production of stabilized polycarbonate |
摘要 |
A process for the production of a stabilized polycarbonate which comprises melt-polycondensing an aromatic dihydroxy compound and a carbonic acid diester in the presence of a polycondensation catalyst and then, after the reaction mixture shows an intrinsic viscosity of at least 0.1, adding at least one stabilizer selected from the group consisting of specific compounds having a sulfonates group sulfonic acid anhydride group or a sulfate group in an amount of 0.01 to 500 ppm of a polycarbonate to be formed, to form a polycarbonate having a desired intrinsic viscosity.
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申请公布号 |
US5668202(A) |
申请公布日期 |
1997.09.16 |
申请号 |
US19960665817 |
申请日期 |
1996.06.19 |
申请人 |
TEIJIN LIMITED |
发明人 |
HIRATA, MASUMI;FUNAKOSHI, WATARU;SASAKI, KATSUSHI |
分类号 |
C08G64/20;C08G64/30;C08G64/40;C08K5/36;C08K5/41;C08K5/42;C08K5/50;C08L69/00;(IPC1-7):C08K5/50 |
主分类号 |
C08G64/20 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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