| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a high purity separation method of resin materials, which method does not produce waste water and is not affected by the specific gravities and dielectric characteristics of resin materials, in recycling of resin materials as resources. <P>SOLUTION: A separation object including at least two types of resins with different glass transition temperatures (glass transition temperature of a first resin 1< glass transition temperature of a second resin 2) is placed on a separating member 3. Next, primary heating is applied at a temperature between the glass transition temperatures of the first resin 1 and the second resin 2, and pressurization is additionally performed to cause the first resin 1 to adhere to the separating member 3. Subsequently, a heat history of secondary heating at a temperature higher than the primary heating temperature is applied to detach and recover the second resin 2 by restoring the shape of the second resin 2, while the first resin 1 adhering to and retained by the separating member 3 is detached by a blade 5 and the like for recovery. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
