Zinc plating solutions and method utilizing ethoxylated/propoxylated polyhydric alcohols
US4512856A · kind A · utility
16Cited by
3References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 25, 1984 |
| Grant date | Apr 23, 1985 |
| Priority date | — |
| Expiry date | May 25, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25D3/22
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Aqueous, acid zinc electroplating solutions and method for electroplating zinc coatings are provided. The plating solutions of the invention contain a source of zinc ions, an electrolyte, at least one organic acid or salt thereof, and a novel grain-refining agent comprising a substituted polyhydric alcohol having three or more ethoxylated and/or propoxylated hydroxyl groups. Bright and lustrous zinc coatings can be electroplated from such solutions at temperatures ranging from between about 50.degree. to 100.degree. F., with the plating solutions exhibiting no significant cloud point.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.