METAL NANOPARTICLE AQUEOUS DISPERSION

• Main Authors: NIIBAYASHI SHOTA, FUKAZAWA NORIMASA
• Format: Patent
• Language: Chinese; English
• Published: 21.12.2018
• Subjects: ADHESIVES; BASIC ELECTRIC ELEMENTS; CABLES; CASTING; CHEMICAL PAINT OR INK REMOVERS; CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; COMPOSITIONS BASED THEREON; CONDUCTORS; CORRECTING FLUIDS; DIFFUSION TREATMENT OF METALLIC MATERIAL; DYES; ELECTRICITY; FILLING PASTES; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; INKS; INSULATORS; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; MAKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; PERFORMING OPERATIONS; POLISHES; POWDER METALLURGY; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; USE OF MATERIALS THEREFOR; WOODSTAINS; WORKING METALLIC POWDER

The invention provides a metal nanoparticle aqueous dispersion which is characterized by containing: a composite body of a metal nanoparticle (X) and an organic compound (Y); and one or more compounds(Z) selected from the group consisting of lactic acid, glycolic acid, malonic acid, succinic acid, fumaric acid, maleic acid, malic acid, tartaric acid, oxalic acid, citric acid and alkali metal salts of these carboxylic acids. This metal nanoparticle aqueous dispersion is able to be suppressed in deterioration over time and in suspension, aggregation and precipitation due to inclusion of a smallamount of impurities. In addition, this metal nanoparticle aqueous dispersion is free from the occurrence of characteristics deterioration due to corrosion and appearance defects of a base due to coloring even if a metal having a higher ionization tendency than the metal that constitutes the metal nanoparticles is present on the base surface to which the metal nanoparticles are applied, and is thus able to be stabilized.