Title:
METALLIC COPPER PARTICLES, AND PRODUCTION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2016/031860
Kind Code:
A1
Abstract:
Provided are: metallic copper particles exhibiting excellent low-temperature sintering properties at temperatures equal to or lower than 300˚C; and a production method therefor. In these metallic copper particles, metallic copper fine particles are adhered to the surfaces of large-diameter metallic copper particles. With regard to the metallic copper particles to be produced, copper oxide and hypophosphoric acid and/or a salt thereof are mixed and reduced, preferably in the presence of 1-500 mass% of gelatin and/or collagen peptide. The reduction reaction temperature is preferably in the range of 20-100˚C. The produced metallic copper particles have a volume resistivity value when heated to a temperature of 300˚C under a nitrogen atmosphere of 1×10-2 Ω∙cm or less.
More Like This:
Inventors:
IDA KIYONOBU (JP)
WATANABE MITSURU (JP)
TOMONARI MASANORI (JP)
WATANABE MITSURU (JP)
TOMONARI MASANORI (JP)
Application Number:
PCT/JP2015/074025
Publication Date:
March 03, 2016
Filing Date:
August 26, 2015
Export Citation:
Assignee:
ISHIHARA SANGYO KAISHA (JP)
International Classes:
B22F9/20; B22F1/052; B22F1/102; B22F1/105; B22F1/17; H01B1/00; H01B1/22; H01B5/00; H01B13/00; B22F1/06; B22F1/068
Domestic Patent References:
| WO2009116349A1 | 2009-09-24 | |||
| WO2010032841A1 | 2010-03-25 | |||
| WO2012161201A1 | 2012-11-29 | |||
| WO2010024385A1 | 2010-03-04 |
Foreign References:
| JP2013064191A | 2013-04-11 |
Other References:
See also references of EP 3187288A4
Attorney, Agent or Firm:
ASAMURA PATENT OFFICE, p. c. (JP)
Patent business corporation Asamura patent firm (JP)
Patent business corporation Asamura patent firm (JP)
Download PDF:
Previous Patent: METHOD FOR PRODUCING WATER-SOLUBLE PEA POLYSACCHARIDE
Next Patent: WINDING CORE AND WINDING CORE MANUFACTURING METHOD
Next Patent: WINDING CORE AND WINDING CORE MANUFACTURING METHOD