Polyester resin composition, injection molded article, light-reflecting base body, and light-reflecting body

Abstract

A polyester resin composition is provided that exhibits a low shrinkage ratio and excellent mold release properties while maintaining a high mechanical strength, that also provides excellent surface properties and an excellent appearance for a molded article and an excellent appearance when vapor deposited, and that resists the production of fogging even during high-temperature use. An injection molded article, a light-reflecting base body, and a light-reflecting body are also provided. The polyester resin composition characteristically contains 0.1 to 20 mass parts of (B) an inorganic filler having an average primary particle diameter of not more than 2.5 μm, per 100 mass parts of (A) a resin component containing (A1) polybutylene terephthalate resin pellets and (A2) a polyester resin powder.

Dependencies are inferred from the claim text.