发明名称 |
PROCESS FOR PREPARING BRANCHED POLYCARBONATE |
摘要 |
The present invention is a process for producing branched polycarbonate providing for optimum utilization of the branching agent. It was surprisingl y found that adding at least a portion of the coupling catalyst to the polymerization at a point during the oligomerization in the reaction results in a higher degree of branching and improved rheological properties.
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申请公布号 |
CA2532081(A1) |
申请公布日期 |
2005.02.03 |
申请号 |
CA20042532081 |
申请日期 |
2004.06.29 |
申请人 |
DOW GLOBAL TECHNOLOGIES INC. |
发明人 |
ROHDE, SUSANNE;ELBERT, BERNHARD |
分类号 |
C08G64/20;C08G64/14;C08G64/24 |
主分类号 |
C08G64/20 |
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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