| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a method of manufacturing an injection molding product by which a low molecular weight circular olefin-based resin is easily injection-molded while making good use of the feature of the resin, and to provide a master batch used for the manufacturing method. <P>SOLUTION: The master batch containing a cyclic olefin-based resin and the low molecular weight cyclic olefin-based resin having the number average molecular weight of≤10,000 is dry-blended with the cyclic olefin-based resin, and after the process, the injection molding is carried out. The master batch preferably contains 20-95 mass% cyclic olefin-based resin and 5-80 mass% low molecular weight cyclic olefin-based resin. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
