Patent ID: 7858696

Claim:
A conductive resin composition comprising: a conductive filler (A); a urethane-modified epoxy (meth)acrylate (B) obtained by reacting an epoxy (meth)acrylate (b-1) with a polyisocyanate (b-2); the epoxy (meth)acrylate (b-1) being obtained by an addition reaction of an epoxy resin having an aromatic cyclic structural unit and/or an aliphatic cyclic structural unit and a (meth)acrylic acid; the epoxy (meth)acrylate (b-1) having a hydroxyl value in the range of 100 to 300; the molar ratio of moles of hydroxyl group of the epoxy (meth)acrylate (b-1) to moles of isocyanate group of the polyisocyanate (b-2) being within the range of 1.0/(0.5 to 1.5); a (meth)acrylate (C) having a number average molecular weight of 500 to 10,000, which contains 20 to 80% by weight of an aromatic cyclic structural unit and/or an aliphatic cyclic structural unit, and contains no active hydrogen atom; the (meth)acrylate (C) is a reaction product obtained by reacting a polyetherpolyol having an aromatic cyclic structural unit and/or an aliphatic cyclic structural unit with a (meth)acrylic acid; and the other ethylenically unsaturated monomer (D) which is copolymerizable with the urethane-modified epoxy (meth)acrylate (B) and the (meth)acrylate (C) wherein a weight ratio of the urethane-modified epoxy (meth)acrylate (B) to the (meth)acrylate (C) is from 95/5 to 50/50.