Patent · US Active

Method for producing dispersed, crystalline, stable to oxidation copper particles

US8216340B2 · kind B2 · utility

0Cited by

4References

6Claims

0Family size

Assignees

E.I. DU PONT DE NEMOURS AND COMPANY · US
Clarkson University · US

Inventors

Daniel V. Goia · Potsdam, US
Ionel Halaciuga · Providence, US
Sylas LaPlante · Potsdam, US
Howard David Glicksman · Durham, US

Key dates

Filing date	Mar 3, 2009
Grant date	Jul 10, 2012
Priority date	—
Expiry date	Jul 29, 2030

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB22F9/24
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

Dispersed, crystalline, stable to oxidation copper particles are prepared in the absence of polymeric dispersants by rapidly reducing a Cu(I) salt with an Fe(II) carboxylic acid complex in water. The resulting microns sized copper powders contain only organics which decompose at temperatures low enough not to interfere with sintering processes and the formation of conductive copper structures.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.