Silver powder, manufacturing method therefor, and conductive paste
AssigneeDowa Electronics Materials Co., Ltd.
InventorsNaoki Tahara, Hiroshi Kamiga
Life of this patent
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Abstract
To provide a silver powder including alkenylsuccinic anhydride and/or alkenylsuccinic acid on a surface of the silver powder.
Claims8
A silver powder consisting of a surface treatment agent selected from
- alkenylsuccinic anhydride and/or alkenylsuccinic acid on a surface of the silver powder.
A silver powder consisting of a surface treatment agent on a surface of the silver powder, wherein the surface treatment agent is detected as alkenylsuccinic anhydride when the silver powder is heated at 300° C. and is analyzed with a gas chromatograph mass spectrometer.
A method for producing a silver powder by adding a reducing agent to an aqueous solution including silver to reduce and deposit the silver powder, the method comprising:
- adding, to liquid during or after reduction and deposition of the silver powder, at least one selected from alkenylsuccinic anhydride, alkenylsuccinic acid, and an metal salt of alkenylsuccinic acid as a surface treatment agent, to obtain the silver powder consisting of the surface treatment agent selected from alkenylsuccinic anhydride and/or alkenylsuccinic acid on a surface of the silver powder.
Dependencies are inferred from the claim text.