Porcelain enameled metal substrates
US5002903A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 1, 1988 |
| Grant date | Mar 26, 1991 |
| Priority date | — |
| Expiry date | Dec 1, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C2207/04
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention contemplates a novel enamel composition, a novel electrodeposition bath, a novel metal substrate for enameling, and the novel PEMS produced from these materials and procedures. In general, the novel glass composition of the present invention are within the following composition ranges (which are set forth in percent by weight). ______________________________________ SiO.sub.2 9-16% B.sub.2 O.sub.3 20-25% MoO.sub.3 2-10% MgO 30-40% BaO 16-22% ZnO 5-14% SnO.sub.2 0-4% ______________________________________ In the novel application method of the present invention, an improved electrophoretic bath has been found in which the glass particles are suspended in a mixture of isopropyl alcohol and either dichloromethane or trichlorotrifluoroethane together with ethylene glycol and an acrylic additive. Stainless steel electroplated with a thin film of molybdenum and heat-treated at an elevated temperature is employed as the substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.