| 摘要 |
Polycarbonate resin compositions containing 100 parts by weight of aromatic polycarbonate resin having a concentration of end hydroxyl group of 100 to 1800 ppm and 0.0001 to 5 parts by weight of fine particles of a boride of La, Ce, Pr, Nd, Tb, Dy, Ho, Y, Sm, Eu, Re, Tm, Yb, Lu, Sr or Ca. Heat ray shielding molded products molded from this polycarbonate resin composition have low haze, excellent transparency, low solar transmittance and sufficient heat ray shielding properties, especially for visible light and selective shielding for infrared rays, and are excellent in mechanical strength and thermal stability at melting. These molded products may be used for windows for buildings or vehicles or as optical materials such as infrared ray cut filters or films for agricultural use. |
