FINE METAL PARTICLES, METHOD FOR PREPARING SAID PARTICLES, COATING LIQUID CONTAINING SAID FINE PARTICLES FOR FORMING TRANSPARENT ELECTROCONDUCTIVE FILM, SUBSTRATE WITH TRANSPARENT ELECTROCONDUCTIVE FILM, AND DISPLAY

• Main Authors: HIRAI, TOSHIHARU, ISHIHARA, YOICHI
• Format: Patent
• Language: English; French; Japanese
• Published: 17.10.2002
• Edition: 7
• Subjects: ADHESIVES; ALLOYS; BASIC ELECTRIC ELEMENTS; CABLES; CASTING; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; CONDUCTORS; CORRECTING FLUIDS; DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; DYES; ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS; ELECTRICITY; FERROUS OR NON-FERROUS ALLOYS; FILLING PASTES; FREQUENCY-CHANGING; INKS; INSULATORS; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; MAKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; PERFORMING OPERATIONS; PHYSICS; POLISHES; POWDER METALLURGY; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; TRANSPORTING; TREATMENT OF ALLOYS OR NON-FERROUS METALS; USE OF MATERIALS THEREFOR; WOODSTAINS; WORKING METALLIC POWDER

Fine metal particles which comprise iron and a metal other than iron, have an average particle diameter ranging 1 to 200 nm, and contain iron in an amount of 0.1 to 3.0 wt %; and a method for preparing the fine metal particles. The metal other than iron is preferably one or more metals selected from the group consisting of Au, Ag, Pd, Pt, Rh, Ru, Cu, Ni, Co, Sn, Ti, In, Al, Ta and Sb. The fine metal particle may have the surface which is partly converted to an oxide or a hydroxide. The metal particles can be suitably used for forming a transparent electroconductive film which has a surface resistance as low as approximately 10 to 10 OMEGA /c, is excellent in antistatic property, reflection preventing property and electromagnetic shielding property, and exhibits excellent reliability and durability. L'invention concerne des particules de métal fines qui renferment du fer et un autre métal, de diamètre moyen compris entre 1 et 200 nm, à teneur en fer comprise entre 0,1 et 3 %, en poids, et un procédé d'élaboration correspondant. De préférence, l'autre métal peut être l'un des métaux suivants: Au, Ag, Pd, Pt, Rh, Ru, Cu, Ni, Co, Sn, Ti, In, Al, Ta et Sb. La surface des particules peut être partiellement convertie en oxyde ou hydroxyde. Les particules se prêtent à la réalisation de film électroconducteur transparent à résistance superficielle pouvant s'abaisser jusqu'à des valeurs comprises entre environ 10 et 10 OMEGA /c, avec d'excellentes caractéristiques dans les domaines suivants: propriété antistatique, pouvoir antiréfléchissant, blindage électromagnétique, fiabilité et durabilité.