| abstract |
(57) [Problem] To provide a resin composition containing ceric oxide, which is excellent in weather resistance and transparency, and has no problem such as thermal discoloration during mixing. SOLUTION: The resin composition is obtained by mixing 0.01 to 10 parts by weight of crystalline cerium oxide with respect to 100 parts by weight of a thermoplastic resin. This crystalline ceric oxide has C Surface-treated with a surfactant of 2 to 20% by weight based on the amount of eO 2 , substantially free of particles having a particle size of 200 nm or more, average particle size of 30 to 100 nm, specific surface area of 70 m 2 / g or less. |