REFLECTOR AND RESIN COMPOSITION

摘要

The present invention relates to a reflector having a light reflecting surface which is formed from a resin composition containing a resin and an inorganic filler including a white pigment and a fibrous filler. The cross sectional area in the radial direction of said fibrous filler is 1-100 µm2, inclusive. By using a simultaneous thermogravimetric/differential thermal analyzer based on a TG-DTA method, the mass of said reflector before heated is measured, and thereafter the content of remaining ash is measured after said reflector is heated, in the ambient atmosphere, to 600°C at 10°C/min and then for 30 minutes at 600°C. Since the measured content of the remaining ash is 70-90 mass%, inclusive, on the basis of the total mass of said reflector before heated, the present invention is capable of ensuring excellent adhesiveness of the reflector to a substrate while at least maintaining basic performance such as heat resistance and reflectivity requirements.