HIGHLY ELECTROCONDUCTIVE RESIN MOLDED ARTICLE

PROBLEM TO BE SOLVED: To provide a highly electroconductive resin molded article that can acquire remarkably high conductivity with a small addition amount of a fine carbon fiber. SOLUTION: The molded article having a flat plate-like part is produced by molding a thermoplastic resin composition comprising 100 pts.wt. thermoplastic resin and 0.05-50 pts.wt. fine carbon fiber having an average fiber diameter of 100 nm or less. A ratio of a virtual resistance value R0under the assumption of a thickness of zero to a resistance value Rtin a thickness direction of the flat plate-like part is a R0/Rtratio of 0.8 or less, provided that the virtual resistance value R0under the assumption of a thickness of zero is a resistance value R in the case of L=0 in the formula: R=b×L+R0(wherein b is a constant) which represents the relationship between L and R as determined by measuring a distance L between both electrode terminals and a resistance value R between both electrode terminals when each of the electrode terminals is brought in engagement with one face of the flat plate-like part and the other face thereof, respectively, and moving one electrode terminal in an estrangement direction from the other electrode terminal and the resistance value Rtin the thickness direction is a resistance value R in the case where L is defined as a thickness of the molded article in the formula: R=b×L+R0. COPYRIGHT: (C)2004,JPO