Patent ID: 7619031

Claim:
A low-heat accumulating thermoplastic resin composition comprising 100 parts by mass of a thermoplastic resin [A], 0.1 to 15 parts by mass of an inorganic pigment [B] having an infrared-reflecting property which is a composite oxide of Ni, Co, Fe and Cr, and 0.01 to 10 parts by mass of an inorganic pigment [C] based on 100 parts by mass of the thermoplastic resin [A], wherein said inorganic pigment [B] satisfies such a requirement that a molded product comprising 100 parts by mass of a block-type polypropylene and 0.5 part by mass of the inorganic pigment [B] exhibits an L value of less than 40, and said inorganic pigment [C] satisfies such a requirement that a molded product comprising 100 parts by mass of a block-type polypropylene and 0.5 part by mass of the inorganic pigment [C] exhibits an L value of not less than 40, wherein a molded product produced from the composition exhibits an L value of not more than 40 when a hue of the molded product is represented by a Lab color system, and wherein said composition satisfies such a requirement that when a molded product produced from the composition which has a length of 80 mm, a width of 55 mm and a thickness of 2.5 mm is placed in a chamber whose temperature and relative humidity are controlled to 25±2° C. and 50±5% RH, respectively, and a surface of the molded product is irradiated with light from a height of 200 mm above the molded product using an infrared lamp with an output power of 100 W for 60 min, a temperature rise thereof is not more than 50° C., said temperature rise being defined as a difference between a temperature of the surface of the molded product as measured after the light irradiation and an initial temperature thereof as measured before the light irradiation.