发明名称 |
PROCESS FOR PREPARING LINEAR POLYCARBONATE WITH IMPROVED IMPACT PROPERTIES |
摘要 |
<p>The present invention relates to an improved process for preparing linear polycarbonates having an improved technique for adding a coupling catalyst compound, specifically the addition of the coupling catalyst at two or more separate, different points in the process. Linear polycarbonate resins prepared by said process demonstrate a lower level of polycarbonate oligomers and an improved balance of properties, in particular improved impact strength and lower ductile brittle transition temperature.</p> |
申请公布号 |
WO2010059545(A1) |
申请公布日期 |
2010.05.27 |
申请号 |
WO2009US64522 |
申请日期 |
2009.11.16 |
申请人 |
DOW GLOBAL TECHNOLOGIES INC.;JUEPTNER, GUENTER;ELBERT, BERNHARD |
发明人 |
JUEPTNER, GUENTER;ELBERT, BERNHARD |
分类号 |
C08G64/24 |
主分类号 |
C08G64/24 |
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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