| 发明名称 |
Method for making polycarbonates |
| 摘要 |
A composition and method is provided for making polycarbonate utilizing an effective amount of a binary catalyst system, comprising a phase transfer catalyst and a tertiary organic amine, as a condensation catalyst during the interfacial phosgenation of a bisphenol, such as bisphenol A. for improved phosgene utiliziation.
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| 申请公布号 |
US5804525(A) |
申请公布日期 |
1998.09.08 |
| 申请号 |
US19960597417 |
申请日期 |
1996.02.08 |
| 申请人 |
GENERAL ELECTRIC COMPANY |
发明人 |
BODEN, EUGENE P.;FLOWERS, LARRY I.;ODLE, ROY R.;PHELPS, PETER D.;RAMSEY, DAVID L.;SYBERT, PAUL D. |
| 分类号 |
C08G64/14;C08G63/79;C08G63/87;C08G64/18;C08G64/20;C08G64/22;C08G64/24;C08G77/448;(IPC1-7):B01J31/00 |
主分类号 |
C08G64/14 |
| 代理机构 |
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