发明名称 |
Hot-melt polycondensation method for manufacturing a polycarbonate composition |
摘要 |
The method of the present invention is a hot-melt polycondensation for an aromatic dihydroxy compound and a dicarbonate in the presence of a basic catalyst, adding sulfur-containing acid compound with a pKa value less than 3 or the derivative thereof, and 5-1,000 ppm of water, and additives as needed for the polycarbonate while the reaction product polycarbonate is still in a molten state, and kneading the material.
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申请公布号 |
US5514767(A) |
申请公布日期 |
1996.05.07 |
申请号 |
US19940281965 |
申请日期 |
1994.07.28 |
申请人 |
GENERAL ELECTRIC COMPANY |
发明人 |
SAKASHITA, TAKESHI;SHIMODA, TOMOAKI;NAGAI, TAKASHI;TOMINARI, KENICHI;KANEZAWA, AKIO |
分类号 |
C08G64/04;C08G64/00;C08G64/20;C08G64/30;C08G64/40;C08G64/42;C08K3/00;C08K3/20;C08K5/36;C08K5/41;C08K5/42;C08L69/00;(IPC1-7):C08G64/00 |
主分类号 |
C08G64/04 |
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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