PRODUCTION OF SILVER-CONTAINING GLASS

PURPOSE:To easily obtain a glass contg. dispersed silver and having an antibacterial property, a photochromic mechanism, etc., by hydrolyzing the reaction product of a metal alkoxide and a specified silver coordination compd. and heat-treating the formed gel. CONSTITUTION:(A) A metal alkoxide (e.g....

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Bibliographische Detailangaben
Hauptverfasser:	OKABAYASHI NAMIHIRO, HAKU SHIHEI
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES AGRICULTURE ANIMAL HUSBANDRY BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES, AS HERBICIDES CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS CHEMISTRY DYES FISHING FORESTRY GLASS HUMAN NECESSITIES HUNTING JOINING GLASS TO GLASS OR OTHER MATERIALS MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MINERAL OR SLAG WOOL MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS PEST REPELLANTS OR ATTRACTANTS PLANT GROWTH REGULATORS POLISHES PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTSTHEREOF SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS SURFACE TREATMENT OF GLASS TRAPPING
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Beschreibung
Zusammenfassung:	PURPOSE:To easily obtain a glass contg. dispersed silver and having an antibacterial property, a photochromic mechanism, etc., by hydrolyzing the reaction product of a metal alkoxide and a specified silver coordination compd. and heat-treating the formed gel. CONSTITUTION:(A) A metal alkoxide (e.g. tetramethyl silicate) is allowed to react with a silver coordination compd. coordinated with (B) an alkoxy metal group-contg. compd. (e.g. N-2-aminoethyl-3-amonopropyl)trimethoxysilane) by using an ordinary solvent (e.g. ethanol). The reaction product is then hydrolyzed in the presence of an alkali (e.g. ammonia) or an acid (e.g. acetic acid) to form a gel. The gel is heat-treated at about 250-1000 deg.C to obtain a glass contg. dispersed silver. The glass is appropriately used as an antibacterial glass, a light control glass, a catalyst, etc.