| 摘要 |
A polylactic acid that contains a stereocomplex crystal, excelling in moldability and that has a high molecular weight, high crystallinity and high melting point; and a process for producing the same. Further, there are provided a composition of the polylactic acid and a molding thereof. In particular, there is provided a polylactic acid of 8 to 50×10<SUP>4</SUP> weight average molecular weight wherein in the measurement by means of differential scanning calorimeter (DSC), the ratio of =195°C melting peak to all melting peaks during temperature rise step is =80%, and provided a process for producing the same. |
| 申请人 |
TEIJIN LIMITED;MUSASHINO CHEMICAL LABORATORY, LTD.;MUTUAL CORPORATION;KIMURA, YOSHIHARU;TANG, ZHEN;FUKUSHIMA, KAZUKI;TOYOHARA, KIYOTSUNA;NONOKAWA, RYUJI;MAEDA, YASUHITO;TAKADA, MASAYUKI;KOMAZAWA, YUKA;AOKI, TSUYOSHI |
发明人 |
KIMURA, YOSHIHARU;TANG, ZHEN;FUKUSHIMA, KAZUKI;TOYOHARA, KIYOTSUNA;NONOKAWA, RYUJI;MAEDA, YASUHITO;TAKADA, MASAYUKI;KOMAZAWA, YUKA;AOKI, TSUYOSHI |
