Cadmium plating baths and methods for electrodepositing bright cadmium deposits
US4270988A · kind A · utility
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12Claims
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Key dates
| Filing date | Sep 24, 1979 |
| Grant date | Jun 2, 1981 |
| Priority date | — |
| Expiry date | Sep 24, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25D3/26
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Cadmium electroplating baths are described which contain as a brightening agent, pyridine compounds having the formula: ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are each independently hydrogen, alkyl, alkoxy, alkene, mercapto, amino, halogen, aryl, arylalkyl, aminoalkyl, hydroxy, hydroxyalkyl, cyano, dialkylamide, aldoxime, pyrolidinyl groups and the corresponding N-oxide compounds. Semi-bright to bright level cadmium coatings are obtained with these baths.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.