Process for coating an electrical steel sheet with an anti-sticking layer
US4190468A · kind A · utility
6Cited by
10References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 10, 1978 |
| Grant date | Feb 26, 1980 |
| Priority date | — |
| Expiry date | Aug 10, 1998 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F1/14783
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method for providing an annealed electrical steel sheet which is highly resistant to sticking to another sheet superimposed thereon at a high temperature, is provided by forming, on the surrace of the sheet, an anti-sticking layer consisting essentially of a colloidal inorganic substance, for example, colloidal silica, alumina and lithium silicate and, optionally, a film-forming organic resinous substance, for example, an acrylic polymer, vinyl acetate polymer and polyester resins.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.