Silver powder and method for producing same

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11407030
APP PUB NO 20210078081A1
SERIAL NO

17086552

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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There is provided a silver powder which has a small average particle diameter and a small thermal shrinkage percentage, and a method for producing the same. While a molten metal of silver heated to a temperature (1292 to 1692° C.), which is higher than the melting point (962° C.) of silver by 330 to 730° C., is allowed to drop, a high-pressure water is sprayed onto the molten metal of silver (preferably at a water pressure of 90 to 160 MPa) to rapidly cool and solidify the molten metal of silver to powderize silver to produce a silver powder which has an average particle diameter of 1 to 6 μm and a shrinkage percentage of not greater than 8% (preferably not greater than 7%) at 500° C., the product of the average particle diameter by the shrinkage percentage at 500° C. being 1 to 11 μm·% (preferably 1.5 to 10.5 μm·%).

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Patent Owner(s)

Patent OwnerAddress
DOWA ELECTRONICS MATERIALS CO LTDCHIYODA-KU TOKYO 101-0021

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ebara, Atsushi Tokyo, JP 12 59
Inoue, Kenichi Tokyo, JP 148 1457
Michiaki, Yoshiyuki Tokyo, JP 13 27
Yamada, Takahiro Tokyo, JP 289 3040
Yoshida, Masahiro Tokyo, JP 528 5298

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