Invention Grant
- Patent Title: Silver powder
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Application No.: US14650161Application Date: 2013-10-02
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Publication No.: US09937555B2Publication Date: 2018-04-10
- Inventor: Yuji Kawakami , Akihiro Murakami , Toshiaki Terao , Isao Kaneko
- Applicant: SUMITOMO METAL MINING CO., LTD.
- Applicant Address: JP Tokyo
- Assignee: SUMITOMO METAL MINING CO., LTD.
- Current Assignee: SUMITOMO METAL MINING CO., LTD.
- Current Assignee Address: JP Tokyo
- Agency: Oliff PLC
- Priority: JP2012-266627 20121205
- International Application: PCT/JP2013/076817 WO 20131002
- International Announcement: WO2014/087728 WO 20140612
- Main IPC: B22F1/00
- IPC: B22F1/00 ; C22C5/06 ; H01B5/00 ; H05K1/09 ; H01B1/02 ; H01B1/22 ; B22F9/24

Abstract:
The present invention provides a silver powder that has an appropriate viscosity range at the time of paste production, can be easily kneaded, and prevents flake occurrence. The silver powder has a dibutyl phthalate absorption amount, measured by a method of JIS-K6217-4, of 7.0 to 9.5 ml/100 g, and has an oil absorption profile at the time of measurement of the absorption amount, having two peaks, or one peak having a half width of not more than 1.5 ml/100 g.
Public/Granted literature
- US20150314370A1 SILVER POWDER Public/Granted day:2015-11-05
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