RESIN COMPOSITION FOR BIAXIAL ORIENTED POLYAMIDE FILM, METHOD OF PRODUCING BIAXIAL ORIENTED POLYAMIDE FILM, AND BIAXIAL ORIENTED POLYAMIDE FILM FORMED BY THE METHOD

摘要

invention is a polyamide resin, and N, N'-ethylene bis-amide of 50 to 500ppm (polyamide resin When weight) the biaxially oriented polyamide resin composition for film, and a single flow lactam containing polymerization or copolymerization, and this melt extrusion, and then biaxially oriented to produce a polyamide film, a single-step polymerization, or melt extrusion In the last stage with respect to the polyamide resin, N, N'- ethylene bis-amide of preparation and 50 to the biaxially oriented polyamide film, the addition of 500ppm, it relates to biaxially oriented polyamide film produced by the method. ; According to the present invention, the polyamide resin and to copolymerize the EBS EBS or by blending a polyamide resin and just before the melt-extrusion, which extruded after the biaxially oriented film to be produced, film bowing phenomenon is improved, thereby improving the uniformity of the quality of the film.