| abstract |
PURPOSE:To provide an electrically conductive adhesive having a high bond strength at high temp. and humidity and a long pot life after coating, by mixing an epoxy resin contg. diglycidylsiloxane, a hardener and an electrically conductive material. CONSTITUTION:A liquid epoxy resin compsn. obtd. by mixing 95-40wt% epoxy resin, pref. epoxidized novolak resin with 5-60wt% diglycidylsiloxane of the formula (wherein R1, R2 are each 3C or lower alkyl, phenyl; n is 1-10) is used. Said epoxy resin compsn., a hardener such as dicyandiamide or adipic acid hydrazide and an electrically conductive material such as metallic powder having an average particle size of 0.1-10mu are kneaded in a roll mill to obtain a pasty electrically conductive adhesive. |