Cyanamide salts of non-lead metals as corrosion inhibitive pigments in mirror back coatings
US4707405A · kind A · utility
26Cited by
5References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 2, 1985 |
| Grant date | Nov 17, 1987 |
| Priority date | — |
| Expiry date | Jan 2, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31678
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Compositions of the invention comprise an organic film-forming resin and a cyanamide salt of a non-lead metal. The composition, when applied to a thin metallic film, inhibits degradation of the thin metallic film as compared to the composition without calcium cyanamide. Processes comprising the step of applying a composition of the invention to a thin metallic film and articles comprising a thin metallic film and a layer of a hardened composition of the invention are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.