Plating solution for coloring, and coloring method
US11214883B2 · kind B2 · utility
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9Claims
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Key dates
| Filing date | Dec 14, 2017 |
| Grant date | Jan 4, 2022 |
| Priority date | — |
| Expiry date | Dec 14, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25D3/54
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Provided is a technique for coloring without any problem with waste water or stability of color development or deposition. A plating solution for coloring characterized by containing a molybdate and a carboxylic acid having one or more carboxyl groups and one or more hydroxy groups and having two or more carbon atoms or a salt thereof, and having a pH of 4.5 to 7.5. A method for coloring a member to be plated characterized by electrolyzing the member to be plated as a cathode in this plating solution for coloring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.