申请人:MITSUBISHI ENGINEERING-PLASTICS CORPORATION
公开号:EP1865027A1
公开(公告)日:2007-12-12
The present invention relates to a polycarbonate resin composition comprising 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 particle of boride of at least one metal selected from the group consisting of La, Ce, Pr, Nd, Tb, Dy, Ho, Y, Sm, Eu, Re, Tm, Yb, Lu, Sr and Ca, and a heat ray shielding molded product formed by molding the above polycarbonate resin composition. The polycarbonate resin composition and heat ray shielding molded product composed thereof according to the present invention, have especially low haze, are excellent in transparency, have low solar transmittance and sufficient heat ray shielding property (especially, have a function of transparency for visible light and selectively shielding property for infrared ray), and are excellent in mechanical strength and thermal stability at melting. Therefore, these are suitably applicable for windows of general buildings or vehicles, roof materials of arcades and carports, optical materials such as infrared ray cut filters, films for agriculture or the like.
本发明涉及一种聚
碳酸酯
树脂组合物,该组合物包括按重量计100份芳香族聚
碳酸酯
树脂(其端羟基浓度为100至1800ppm)和按重量计0.0001至5份至少一种选自La、Ce、Pr、Nd、Tb、Dy、Ho、Y、Sm、Eu、Re、Tm、Yb、Lu、Sr和Ca的
金属的
硼化物细颗粒,以及通过模塑上述聚
碳酸酯
树脂组合物而形成的热射线屏蔽模塑产品。根据本发明的聚
碳酸酯
树脂组合物和由其组成的热射线屏蔽模塑产品,雾度特别低,透明度极佳,太阳透过率低,热射线屏蔽性能充分(特别是对可见光具有透明度功能,对红外线具有选择性屏蔽性能),机械强度和熔融热稳定性极佳。因此,这些材料非常适合用于一般建筑物或车辆的窗户、拱廊和车棚的屋顶材料、红外线切割滤光片等光学材料、农用薄膜或类似材料。