| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a polyurethane polyurea resin composition for such an electromagnetic wave-shielding adherent film for use in a flexible printed wiring board as has, after adhering to a flexible printed wiring board, the sufficient electromagnetic wave-shielding property and additionally the heat resistance durable for the high temperature at the time of reflowing a lead-free solder and the more excellent flexing resistance than ever as well as has no reduction in the electroconductivity even when exposed to a high temperature and a high humidity [concretely, after via a pressure cooker test (hereinafter PCT)] and also the excellent wear resistance, and further to provide a curable, electromagnetic-wave shielding adherent film using the same, and a manufacturing method therefor. <P>SOLUTION: The film includes (I) a curable, electroconductive polyurethane polyurea adhesive layer containing (A) a polyurethane polyurea resin and (B) an epoxy resin and a specified amount of an electroconductive filler and (II) a film-like curable insulating polyurethane polyurea resin composition containing (C) a polyurethane polyurea resin, (D) an epoxy resin and (E) a wax. <P>COPYRIGHT: (C)2010,JPO&INPIT |
