Resin coated metal sheet with excellent electromagnetic wave shielding performance

Abstract

The invention resin coating metal plate with resin involucra on the surface of the metal plate, which can raise the conductivity of the resin coating metal plate, and has excellent electromagnetic interference shielding capacity, preferably under gently contacting. The said resin involucra satisfies the necessary condition of the following formula (1): PPIt>=70 ellipsis (1). The PPIt denotes thenumber of peak-valley when 1 / 2 of the peak count level (2H) is used as the thickness t(mu m) of resin involucra in PPI(Peaks Per Inch) recorded in SAE J911-1986.

Description

technical field [0001] The present invention relates to a resin-coated metal sheet excellent in electromagnetic wave shielding properties (conductivity). The resin-coated metal sheet of the present invention is, for example, pressed at a pressure of 10 to 12 g / mm 2 Good electrical conductivity can be exhibited even under light contact (under light pressure) from left to right, so it is suitable, for example, as a constituent material such as a frame of electronic, electrical, and optical equipment (hereinafter sometimes represented by electronic equipment). Background technique [0002] With the improvement of performance and miniaturization of electronic equipment, in order to prevent the electromagnetic waves generated inside the electronic equipment from leaking to the outside, or to prevent the electromagnetic waves intruding from the outside of the electronic equipment from invading the inside, the housings of electronic equipment and the like are required to have Exce...

AI Technical Summary

Problems solved by technology

Thus, although it is possible to attenuate electromagnetic waves leaking from, for example, gaps between steel plates, there is a problem that the leakage of electromagnetic waves from, for example, air holes and wiring holes cannot be effectively prevented.

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