| 摘要 |
PROBLEM TO BE SOLVED: To provide a box part which excels in easy dismounting properties and material recycling properties in a dismounting/separation step after recovering products to be recycled and, simultaneously, has shielding properties. SOLUTION: A carbonized substance layer is formed on a box part composed of a thermoplastic resin composition or a thermosetting resin composition by laser irradiation, and a part of the carbonized substance layer or the entire carbonized substance layer is connected to earth to utilize it as a shield. COPYRIGHT: (C)2003,JPO
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