发明名称 |
METHOD FOR QUENCHING OF CATALYST IN THE PRODUCTION OF LOW MOLECULAR WEIGHT POLYCARBONATES |
摘要 |
Improved performance in high temperature, high vacuum reactors is obtained by quenching alkaline catalyst present in the product of a melt polycondensation reaction using a sulfonic acid ester quencher in a carrier. The carrier is formed from a first carrier component effective to solubilize the quencher and having a lower boiling point than the quencher, and a second carrier component soluble in the first carrier component and having a higher boiling point than the quencher. An exemplary carrier composition contains equal parts of diphenylcarbonate and toluene.
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申请公布号 |
WO0050489(A1) |
申请公布日期 |
2000.08.31 |
申请号 |
WO2000US01359 |
申请日期 |
2000.01.20 |
申请人 |
GENERAL ELECTRIC COMPANY |
发明人 |
ANAMIZU, TAKAYOSHI;KANEZAWA, AKIO;MESTANZA, RAPHAEL;SHIOMDA, TOMOAKI |
分类号 |
C08G64/30;C08G64/40;(IPC1-7):C08G64/40 |
主分类号 |
C08G64/30 |
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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