Nickel powder dispersion, method of producing nickel power dispersion and method of producing conductive paste
US6620220B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 28, 2001 |
| Grant date | Sep 16, 2003 |
| Priority date | — |
| Expiry date | Sep 28, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22F2998/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A nickel powder dispersion prepared by adding an organic solvent to an aqueous nickel powder dispersion consisting of a ultrafine nickel powder having a mean particle diameter of no more than one micrometer and an aqueous solvent, in such a state that the organic solvent has replaced at least part of the aqueous solvent. The dispersion may further contain a surface active agent. The nickel powder dispersion possesses very good nickel powder dispersibility. When used in forming an electrically conductive paste, it shows excellent dispersibility in the paste dispersant. Multilayer ceramic capacitors fabricated using the paste are protected against shortcircuiting or delamination which can otherwise result from electrode surface irregularities.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.