Method of manufacturing copper nano-ink and copper nano-ink
US11465208B2 · kind B2 · utility
0Cited by
1References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 4, 2018 |
| Grant date | Oct 11, 2022 |
| Priority date | — |
| Expiry date | Aug 22, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB82Y40/00
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method of manufacturing a copper nano-ink includes: a step of preparing a copper nanoparticle aqueous dispersion liquid including copper nanoparticles and anions; and a step of storing the copper nanoparticle aqueous dispersion liquid at 5° C. or less after the step of preparing, wherein in the step of storing, a copper ion concentration of the copper nanoparticle aqueous dispersion liquid is controlled to be greater than or equal to 0.1 g/L and less than or equal to 1.0 g/L and an anion concentration is controlled to be greater than or equal to 0.5 g/L and less than or equal to 8.0 g/L.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.