abstract |
PURPOSE: The titled composition having improved solvent resistance, undrooping properties and spot welding properties, containing a specific rubber modified epoxy resin, electrically conductive powder such as zinc, etc., dicyandiamide and silica fine powder in a specific ratio. n CONSTITUTION: The aimed composition containing (A) 100pts.wt. rubber modified epoxy resin obtained by reacting (i) 70W95wt% liquid phenolic novolak type epoxy resin with (ii) 5W30wt% carboxyl-group containing liquid rubber-like polymer, (B) 5W50pts.wt. one or more electrically-conductive powder (preferably scaly graphite) selected from powder of zinc, aluminum, nickel, stainless steel and graphite, (C) 2W20pts.wt. dicyandiamide and (D) 0.5W10pts.wt. silica fine powder (having hydrophobic surface). n COPYRIGHT: (C)1987,JPO&Japio |