Patent ID: 7674402

Claim:
An electroconductive resin composition, comprising at least: a multi-component polymer-type resin binder (A) comprising a dispersed phase and a continuous phase, and having a number-average particle size of dispersed phase of 0.001-2 μm, and an electroconductive material (B) in the form of powder, fiber, or combination thereof; wherein the number-average particle size of the dispersed phase in the component (A) is smaller than the number-average particle size or number-average fiber diameter of the component (B), wherein the multi-component polymer-type resin binder (A) has a micro-phase separation structure comprising a resin component constituting the dispersed phase and a resin component constituting the continuous phase, and wherein the component (A) constitutes 40-2 mass %, and the component (B) constitutes 60-98 are mass %, based on the total amount of (component (A)+component (B)) of 100 mass %.