发明名称 |
Polyester, Process for Producing Polyester, and Polyester Molded Article |
摘要 |
Disclosed is a polyester produced from an aluminum compound and a phosphorus compound in the presence of a polycondensation catalyst. The polyester contains a polyester-insoluble, aluminum-containing insoluble particle in an amount of 1000 ppm or less as quantified by the method disclosed in the description, and contains an acid terminal group at a ratio of 10 to 50 eq/ton. The polyester can provide a highly transparent molded article produced through drawing (e.g., a film or hollow molded article) and is useful in the fields of highly transparent optical films, ultra-highly transparent molded articles or the like.
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申请公布号 |
US2009082529(A1) |
申请公布日期 |
2009.03.26 |
申请号 |
US20060992089 |
申请日期 |
2006.09.12 |
申请人 |
KAGEYAMA KATSUHIKO;MATSUMOTO HARUO;KUZE KATSUAKI;MARUYAMA GAKU |
发明人 |
KAGEYAMA KATSUHIKO;MATSUMOTO HARUO;KUZE KATSUAKI;MARUYAMA GAKU |
分类号 |
C08F2/00 |
主分类号 |
C08F2/00 |
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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