| 摘要 |
PROBLEM TO BE SOLVED: To provide a highly reliable electromagnetic wave prevention sleeve made of resin, which is a resin sleeve having both an electromagnetic wave prevention function and insulation properties and has a front face with conductivity and a rear face with insulation properties while comprising a single layer.SOLUTION: A single layer endless tubular sleeve is made of a polyimide resin including a metal-based fine particle. The metal-based fine particle is at least one selected from among metal materials which have a true density of 1.5 g/cmor more and a specific resistivity at normal temperature of 80 μ&OHgr;/cm or less, and are not melted or sublimated below 200 degrees. The metal-based fine particle is gradient-dispersed in the polyimide resin, and unevenly distributed or exposed at the outer peripheral surface portion of the sleeve, and a surface resistivity of the outer peripheral surface of the sleeve is 10 &OHgr;/sq. or less. |
