| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a polyester resin composition for molding an LED light reflector, a polyester resin material for molding a light reflector, and a resin molded article, which simultaneously develop various superior characteristics such as excellent light-reflecting characteristics for light in a short wavelength range, particularly at a short wavelength of 460 nm, and excellent resistance to thermal discoloration, resistance to UV ray discoloration, and which suppress deformation even after a solder heat resistance test.SOLUTION: The polyester resin composition for molding an LED light reflector comprises: 20 to 80 mass% of a polybutylene terephthalate resin (A); 5 to 40 mass% of a thermoplastic polyester resin (B) having a crystal melting temperature (Tm) of 270 to 320°C; 10 to 60 mass% of titanium oxide (C) subjected to a surface treatment with at least organopolysiloxane; and 1 to 40 mass% of fibrous filler (D).</p> |
