SUBSTRATE FOR LIGHT REFLECTOR MADE OF RESIN

摘要

PROBLEM TO BE SOLVED: To provide a substrate for a light reflector using a resin composition which ensures excellent appearance and moldability even in the case of a molded article having such a form factor as to inhibit mold release due to shrinkage in molding, and can retain the feeling of high luminance even when exposed to a high-temperature atmosphere. SOLUTION: The resin composition is prepared by blending 100 pts.wt. of polybutylene terephthalate resin (A) with at least 10-50 pts.wt. of at least one thermoplastic resin (B) selected from a thermoplastic polyester resin (b1) other than polybutylene terephthalate resin and a thermoplastic vinyl resin (b2), 10-50 pts.wt. of granular talc (E) comprising talc (C) having an average primary particle diameter of 0.1-10μm and a water-soluble polymer binder (D), and 0.01-2.0 pts.wt. of at least one antioxidant (F) selected from hindered phenol-based and phosphite-based antioxidants. COPYRIGHT: (C)2011,JPO&INPIT