| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a thermoplastic resin foam which has high reflectance and excellent fire retardance combined with each other, and which is suited for the backlight of an illumination billboard, lighting equipment, a display and so on, and for the light reflection plate of a lighting box. <P>SOLUTION: The thermoplastic resin foam is manufactured by a manufacturing method comprising: a step to hold a resin sheet composed of a thermoplastic resin (A), a non-decabromo-based fire retardant (B), a flame-retardant aid (C), and a thermoplastic resin (D) in a pressurized inert gas atmosphere so as to make the resin sheet include the inert gas; and a step to foam the resin sheet including the inert gas by heating it to a temperature higher than the softening temperature of the thermoplastic resin under normal atmospheric pressure. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
