Compositions – Electrically conductive or emissive compositions – Free metal containing
Reexamination Certificate
2011-07-12
2011-07-12
Gulakowski, Randy (Department: 1766)
Compositions
Electrically conductive or emissive compositions
Free metal containing
C427S098400, C427S123000, C427S383100
Reexamination Certificate
active
07976732
ABSTRACT:
An electroconductive composition including a mixture of a copper powder having an averaged particle size between 0.3 and 20 μm and a copper fine powder having an averaged particle size between 1 and 50 nm; a solvent comprising a multivalent alcohol, such as ethylene glycol or diethylene glycol, having two or more OH groups; and an additive comprising a compound such as malic acid or citric acid having two or more COOH groups and one or more OH groups where the number of COOH groups is equal to or greater than the number of OH groups.
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Kamada Keiji
Mori Kensaku
Dykema Gossett PLLC
Gulakowski Randy
Nguyen Khanh Tuan
Sumitomo Metal & Mining Co., Ltd.
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