Electroconductive composition, electroconductive coating and method of producing the electroconductive coating

• Main Authors: OHMORI, KIWAKO, TAKAHASHI, KATSUHIKO, YASUHARA, HIKARU, IMAI, TAKAYUKI, ENDO, MASANORI
• Format: Patent
• Language: English
• Published: 11.03.2006
• Edition: 7
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; BASIC ELECTRIC ELEMENTS; CABLES; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; CONDUCTORS; CORRECTING FLUIDS; DYES; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; FILLING PASTES; INKS; INSULATORS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; POLISHES; PRINTED CIRCUITS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; USE OF MATERIALS AS ADHESIVES; USE OF MATERIALS THEREFOR; WOODSTAINS

An electro-conductive composition is disclosed. The electro-conductive composition is comprised of particulate silver compound and binder or of particulate silver compound, binder and reducing agent. The particulate silver compound has 0.01 to 10 micron meter of particle size and is selected from the group of silver oxide, silver carbonate and silver acetate. The binder is selected from the group of multivalent phenolic compound, phenolic resin, alkyd resin, epoxy resin, unsaturated polyester resin and fine particle of thermoplastic resin such as polystyrene, polyethyleneterephthalate having mean particle size of 20 namo meter to 5 micron meter. The reducing agent is selected from the group of ethylene-glycol, diethylene-glycol, triethylene-glycol and ethylene-glycol-diacetate. Coating the electro-conductive composition on a substrate and heating at 140 to 200 DEG C gets an electro-conductive coating. The electro-conductive coating has extremely high electro-conductivity such as metallic silver. The electro-conductive composition is used for an electro-conductive adhesive, an electro-conductive paste, an electro-conductive paint and so on.