METHOD FOR PRODUCING SILVER CORE-GOLD SHELL FINE PARTICLE PROTECTED BY NON-WATER-SOLUBLE POLYMERIC PIGMENT-DISPERSING AGENT
PROBLEM TO BE SOLVED: To provide a method for producing re-dispersible composite metal fine particles of silver-gold, having a similar optical characteristics to the gold, simply, in good productivity and at a low cost. SOLUTION: This silver core-gold shell fine particles 10 having a constitution of...
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| creator | TSUTSUI YOSHIYA |
| description | PROBLEM TO BE SOLVED: To provide a method for producing re-dispersible composite metal fine particles of silver-gold, having a similar optical characteristics to the gold, simply, in good productivity and at a low cost. SOLUTION: This silver core-gold shell fine particles 10 having a constitution of covering the silver fine particles 2 with gold fine particles 3 and enclosing the surroundings of them with a non-water-soluble polymeric pigment-dispersing agent 4 is obtained by performing the reducing reaction of auric ions at the interface of (a) a silver fine particle-dispersed solution obtained by dispersing silver fine particles protected by the non-water-soluble polymeric pigment-dispersing agent in an organic solvent without having compatibility with water and (b) an auric ion-containing aqueous solution to precipitate the gold fine particles 3 on the surface of the silver fine particles 2. COPYRIGHT: (C)2006,JPO&NCIPI |
| format | Patent |
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| subjects | ADHESIVES CASTING CHEMISTRY DYES MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS PERFORMING OPERATIONS POLISHES POWDER METALLURGY PREPARATION OF CARBON BLACK TRANSPORTING TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS,TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES WORKING METALLIC POWDER |
| title | METHOD FOR PRODUCING SILVER CORE-GOLD SHELL FINE PARTICLE PROTECTED BY NON-WATER-SOLUBLE POLYMERIC PIGMENT-DISPERSING AGENT |
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