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An electrically conductive thermoplastic resin composition having a high electrical conductivity and a relatively low specific gravity is obtained by evenly dispersing 2% by volume or more of metallic fibers and 2% by volume or more carbon fibers in a thermoplastic resin matrix, the sum of the amoun

An electrically conductive thermoplastic resin composition having a high electrical conductivity and a relatively low specific gravity is obtained by evenly dispersing 2% by volume or more of metallic fibers and 2% by volume or more carbon fibers in a thermoplastic resin matrix, the sum of the amounts of the metallic and carbon fibers being from 8% to 20% by volume.

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An electrically conductive thermoplastic resin composition which comprises: a matrix comprising a thermoplastic resin consisting essentially of at least one member selected from the group consisting of polyolefins, polyamides, acrylonitrile-styrene copolymer resins, acrylonitrile-styrene-butadiene t

An electrically conductive thermoplastic resin composition which comprises: a matrix comprising a thermoplastic resin consisting essentially of at least one member selected from the group consisting of polyolefins, polyamides, acrylonitrile-styrene copolymer resins, acrylonitrile-styrene-butadiene terpolymer resins, polystyrene, polycarbonates, polyacetal resins, polyacrylic ester resins, and polyesters, and a dispersed phase consisting essentially of at least 2% by volume of metallic fibers having a diameter of from 10 to 150 microns and a length of from 0.5 to 10 mm and consisting essentially of a metal selected from the group consisting of steel, stainless steel, brass, copper, aluminum, and alloys of at least two of copper, aluminum, chromium, zinc, manganese and iron, and at least 2% by volume of carbon fibers uniformly dispersed in said matrix, the sum of the amounts of said metallic fibers and said carbon fibers being in the range of from 8% to 15% by volume.