Patent ID: 11873408
Assignee: nan
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C  H | IPC C  H

Claim 0:
1. A method for coating an electrical steel strip, comprising steps of:
applying a wet film of an aqueous chromium- and phosphate-free composition to at least a part of a surface of the electrical steel strip, which composition comprises:
A) at least 15 wt. % of silicates dissolved in water, calculated as SiO2;
B) at least 4 wt. % of sodium and/or potassium ions dissolved in water, wherein a total content of the ions dissolved in water is calculated respectively as Na and/or K; and
C) at least 1 wt. % of at least one water-insoluble oxide pigment; and

drying the wet film on the surface of the electrical steel strip.