| 摘要 |
PROBLEM TO BE SOLVED: To provide a polyester resin composition for a reflector capable of giving a reflecting plate being excellent particularly in UV-resistant characteristics and reflection characteristics for a long period and also allowing good moldability and less reduction in reflection coefficient by heating, like in manufacturing process of LED and reflow soldering process.SOLUTION: A polyester resin composition for a reflector comprises 30 to 80 mass% of a polyester resin having a melting point or glass-transition temperature of 250°C or more (A), 1 to 50 mass% of an inorganic filler (B), 5 to 50 mass% of a white pigment (C), 0.01 to 0.2 mass% of a fluorescent whitening agent (D) and 0.01 to 0.2 mass% of a light fastness stabilizer (E) (where the total of the polyester resin (A), the inorganic filler (B), the white pigment (C), the fluorescent whitening agent (D) and the light fastness stabilizer (E) is 100 mass%). |
