Compositions – Electrically conductive or emissive compositions – Metal compound containing
Reexamination Certificate
2011-07-19
2011-07-19
Kopec, Mark (Department: 1766)
Compositions
Electrically conductive or emissive compositions
Metal compound containing
C264S184000, C264S246000, C428S206000, C438S311000, C423S023000
Reexamination Certificate
active
07981327
ABSTRACT:
Disclosed is a method for producing a metal particle dispersion wherein a metal compound is reduced by using carbodihydrazide represented by the formula (1) below or a polybasic acid polyhydrazide represented by the formula (2) below (wherein R represents an n-valent polybasic acid residue) in a liquid medium. By reducing the metal compound in the presence of a compound having a function preventing discoloration of the metal, there can be obtained a metal particle dispersion having excellent discoloration preventing properties. Metal particles produced by such methods have a uniform particle diameter and are excellent in dispersion stability. By using a conductive resin composition or conductive ink containing a metal particle dispersion obtained by such production methods, there can be formed a conductive coating film, such as a conductive circuit or an electromagnetic layer, having good characteristics.
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Sakaguchi Kaori
Shiraishi Kinya
Kopec Mark
McDermott Will & Emery LLP
Nguyen Khanh Tuan
Toyo Ink Mfg. Co. Ltd.
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