申请人:ALBEMARLE CORPORATION
公开号:EP1067153A1
公开(公告)日:2001-01-10
Thermoplastic polycarbonate-ABS resin is rendered flame retardant by blending with the resin an O,O-diaryl-N-arylphosphoramidate, an arylene-N,N'-bis(O,O-diarylphosphoramidate) in which the nitrogen atoms are in the 1,3 or 1,4 positions on an arylene ring, or an N,N'-piperazinediylbis(O,O-diarylphosphoramidate). These flame retardants are halogen-free. They provide molded objects having high heat distortion temperatures, and high softening temperatures. Flame retardants of these types have been found to be thermally stable at temperatures of at least 260°C, and they did not discolor the polymer composition during exposure to molding temperatures.
在热塑性聚碳酸酯-ABS 树脂中掺入 O,O-二芳基-N-芳基磷酰胺、芳基-N,N'-双(O,O-二芳基磷酰胺)(其中氮原子位于芳基环上的 1,3 或 1,4 位)或 N,N'-哌嗪二基双(O,O-二芳基磷酰胺),可使该树脂具有阻燃性。这些阻燃剂不含卤素。它们能提供具有高热变形温度和高软化温度的成型物体。已发现这些类型的阻燃剂在至少 260°C 的温度下具有热稳定性,而且在模塑温度下不会使聚合物成分褪色。