Electroconductive resin composition, method for manufacturing same and molded article obtained therefrom

An electrically conductive resin composition, comprising 75 to 99 parts by mass of a thermoplastic resin (A) and 1 to 25 parts by mass of a carbon material (B), and also comprising more than 1 part by mass and 10 parts by mass or less of a modified polyolefin wax (C) based on 100 parts by mass of the total of the thermoplastic resin (A) and the carbon material (B), wherein

• the carbon material (B) is a particulate carbon material having an average particle diameter of 500 nm or less or a fibrous carbon material having an average length of 1,000 μm or less,
• the modified polyolefin wax (C) is a maleic anhydride-modified product, an air oxidation product or a styrene-modified product of a copolymer of ethylene and at least one α-olefin selected from C3-12 α-olefins, and,
• the number average molecular weight (Mn) of the modified polyolefin wax (C), as measured by gel permeation chromatography (GPC), ranges from 300 to 3,000.