发明名称 |
HOLLOW CONTAINER COMPRISING AN AROMATIC POLYCARBONATE COMPOSITION |
摘要 |
<p>A subject for the invention is to provide a branched aromatic polycarbonate which is excellent in hue and in melt characteristics such as melt strength. <??>The invention provides a branched aromatic polycarbonate having a viscosity-average molecular weight of 16,000 or higher obtained by the transesterification method, characterized in that the ratio of the weight-average molecular weight (Mw) to number-average molecular weight (Mn) as measured by gel permeation chromatography and calculated for standard polystyrene (Mw/Mn) is in the range of from 2.8 to 4.5 and that the proportion of the number of moles of all structural units yielded by a rearrangement reaction in the course of melt polymerization reaction to 1 mol of structural units having the framework of an aromatic dihydroxy compound used as a starting material is higher than 0.3 mol% and not higher than 0.95 mol.</p> |
申请公布号 |
EP2248841(B2) |
申请公布日期 |
2015.03.11 |
申请号 |
EP20100174109 |
申请日期 |
2003.04.10 |
申请人 |
MITSUBISHI CHEMICAL CORPORATION;MITSUBISHI ENGINEERING-PLASTICS CORPORATION |
发明人 |
MIYAMOTO, MASAAKI;TAYAMA, TAKAO;NAKANO, HIROSHI |
分类号 |
C08G64/04;C08G64/14;C08G64/30;C08L69/00 |
主分类号 |
C08G64/04 |
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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