Antistatic sheeting
AssigneeAsahi Chemical Polyflex Ltd.
InventorsEiji Hattori, Mitsuji Ebara
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Abstract
An antistatic sheet material comprises a substrate layer, an electroconductive layer, and a surface layer. The electroconductive layer is disposed on the substrate layer and contains carbon black in such a manner that the carbon black partly protrudes into the surface layer. The surface layer is a thin transparent plastic layer. The sheet material possesses decreased surface resistance and exhibits excellent antistatic properties. The sheet material permits an object held thereunder to be clearly seen therethrough and enjoys high resistance to surface friction and never deteriorates any object which is in contact therewith. Thus, the sheet material of this invention is used advantageously as containers for objects which by their nature are vulnerable to electrostatic damage.
Claims20
An antistatic sheet material consisting of:
- a substrate layer comprising a transparent plastic substance;
- an electroconductive layer disposed on one surface of said substrate layer;
- a surface layer comprising a transparent plastic substance disposed on said electroconductive layer to a thickness of 10 .mu.m to 0.2 .mu.m;
- and
- carbon black, contained in said electroconductive layer in an amount of 0.8 to 0.01 g/m.sup.2, which partially protrudes into said surface layer.
Dependencies are inferred from the claim text.