| 发明名称 |
Method for making aromatic polycarbonates |
| 摘要 |
A method is provided for making polycarbonate utilizing an effective amount of a phase transfer catalyst, such as tetrabutylammonium bromide as a condensation catalyst during the interfacial phosgenation of a bisphenol, such as bisphenol A. Improved phosgene utilization is achieved.
|
| 申请公布号 |
US5391692(A) |
申请公布日期 |
1995.02.21 |
| 申请号 |
US19940190395 |
申请日期 |
1994.02.02 |
| 申请人 |
GENERAL ELECTRIC COMPANY |
发明人 |
BODEN, EUGENE P.;PHELPS, PETER D.;RAMSEY, DAVID L.;SYBERT, PAUL D.;FLOWERS, LARRY I.;ODLE, ROY R. |
| 分类号 |
C08G64/22;C08G64/24;C08G64/40;(IPC1-7):C08G64/00 |
主分类号 |
C08G64/22 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
