To provide a method for injection-molding a polylactic acid-based resin composition which contains polylactic acid, polypropylene and rubber and allows an injection-molded article obtained therefrom to have excellent impact resistance and excellent appearance simultaneously.
The method for injection-molding the polylactic acid-based resin composition includes: using the polylactic acid-based resin composition, which contains polylactic acid, polypropylene and rubber and has ≤500 ppm water content, as a raw material; and injection-molding the polylactic acid-based resin composition under a such a condition that the molding temperature and the residence time satisfy the inequality: Y≤-2.1X+489 (wherein X is the molding temperature (°C); Y is the residence time (minute)).
COPYRIGHT: (C)2010,JPO&INPIT
MIYAKE YUICHI
ITO MASAFUMI
SHIMANO KOKICHI
WATANABE TAKESHI
SUMITOMO CHEMICAL CO
| JP2007277444A | 2007-10-25 | |||
| JP2004330478A | 2004-11-25 | |||
| JP2005170426A | 2005-06-30 | |||
| JP2006103202A | 2006-04-20 | |||
| JP2007193875A | 2007-08-02 |
Ishii Teiji
Satoshi Fujita