The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 10, 2012
Filed:
Mar. 03, 2009
Applicants:
Daniel V. Goia, Potsdam, NY (US);
Ionel Halaciuga, Potsdam, NY (US);
Sylas Laplante, Potsdam, NY (US);
Howard David Glicksman, Durham, NC (US);
Inventors:
Daniel V. Goia, Potsdam, NY (US);
Ionel Halaciuga, Potsdam, NY (US);
Sylas LaPlante, Potsdam, NY (US);
Howard David Glicksman, Durham, NC (US);
Assignees:
E. I. du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22F 9/24 (2006.01);
U.S. Cl.
CPC ...
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.