Baths and additives for the electrodeposition of bright zinc
US4007098A · kind A · utility
9Cited by
10References
43Claims
0Family size
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Inventor
Key dates
| Filing date | Sep 4, 1975 |
| Grant date | Feb 8, 1977 |
| Priority date | — |
| Expiry date | Sep 4, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25D3/22
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
It has been found that a linear aliphatic amine polymer obtained from the reaction of a linear aliphatic polyamine and an epihalohydrin results in an acid zinc electroplating bath brightener. Additionally, when dissolved in an aqueous, acid zinc electroplating bath, the linear aliphatic amine polymer reaction product acts synergistically with polyoxyethylene condensates and aromatic aldehydes and ketones to provide extremely bright electrodeposits of zinc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.