发明名称 |
POLYCARBONATES MADE USING HIGH ACTIVITY CATALYSTS |
摘要 |
Polycarbonates having Mn ranging from about 5,000 to about 40,000 and a molecular weight distribution ranging from 1.05 to 2.0 are prepared from epoxides and CO2 using a catalyst which has a Zn center and two ligands where one of the ligands is a propagating group and the other of the ligands is not a propagating group and an activity of at least one turnover per hour, preferably at least 100 turnovers per hour. Preferred catalysts have a (1) moiety with group on each nitrogen containing a phenyl moiety.
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申请公布号 |
WO0008088(A1) |
申请公布日期 |
2000.02.17 |
申请号 |
WO1999US14121 |
申请日期 |
1999.06.30 |
申请人 |
CORNELL RESEARCH FOUNDATION, INC. |
发明人 |
COATES, GEOFFREY, W.;CHENG, MING |
分类号 |
C08G64/34;(IPC1-7):C08G63/12;C08G64/00 |
主分类号 |
C08G64/34 |
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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