METHOD FOR MANUFACTURING INJECTION MOLDED PRODUCT, AND METHOD FOR IMPROVING WELD APPEARANCE OF INJECTION MOLDED PRODUCT

摘要

PROBLEM TO BE SOLVED: To provide a method for manufacturing an injection molded product composed of a propylene resin composition, and a method for improving the weld appearance of an injection molded product.;SOLUTION: In a method for manufacturing an injection molded product which is obtained from a polypropylene resin composition (C) containing, relative to 100 pts.wt. of a polypropylene resin (A), 0.1-10 pts.wt. of a radiant material (B), the radiant material (B), preferably, aluminum particles have a flake form having an aspect ratio (average long diameter/average thickness) of 20-100, the mold temperature in injection molding is in the range of -5 to 170°C relative to crystallization temperature (Tc) of the proplylene resin composition (C). A method for improving the weld appearance of an injection molded product or the like is also provided.;COPYRIGHT: (C)2014,JPO&INPIT