发明名称 |
Polylactic acid and manufacturing process thereof |
摘要 |
It is an object of the present invention to provide polylactic acid containing a stereocomplex crystal and having excellent moldability, a high molecular weight, high crystallinity and a high melting point and a process for manufacturing the same. It is another object of the present invention to provide a composition comprising the polylactic acid and a molded product of the polylactic acid. The present invention is characterized from polylactic acid having a weight average molecular weight of 80,000 to 500,000 and a melting peak at 195° C. or higher which accounts for 80% or more of the total of melting peaks in the temperature elevation step when measured by a differential scanning calorimeter (DSC) and a process for manufacturing the same. |
申请公布号 |
US8304490(B2) |
申请公布日期 |
2012.11.06 |
申请号 |
US20050658093 |
申请日期 |
2005.07.20 |
申请人 |
KIMURA YOSHIHARU;TANG ZHEN;FUKUSHIMA KAZUKI;TOYOHARA KIYOTSUNA;NONOKAWA RYUJI;MAEDA YASUHITO;TAKADA MASAYUKI;KOMAZAWA YUKA;AOKI TSUYOSHI;TEIJIN LIMITED;MUSASHINO CHEMICAL LABORATORY, LTD;MUTUAL CORPORATION |
发明人 |
KIMURA YOSHIHARU;TANG ZHEN;FUKUSHIMA KAZUKI;TOYOHARA KIYOTSUNA;NONOKAWA RYUJI;MAEDA YASUHITO;TAKADA MASAYUKI;KOMAZAWA YUKA;AOKI TSUYOSHI |
分类号 |
C08G63/08;C08G63/06;C08G63/88;C08L67/04 |
主分类号 |
C08G63/08 |
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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