CHROMIUM-FREE MAGNESIUM VANADATE CONTAINING ANTI CORROSIVE PAINT COMPOSITION AND PAINT FILMS OBTAINED BY COATING THE SAME Russian patent published in 2017 - IPC C09D5/08 C09D7/12 C08K3/22 

FIELD: chemistry.

SUBSTANCE: describes a chromium-free paint composition that includes a film-forming resin (A), an anticorrosive pigment (B) that contains at least one kind of amorphous MgO-V₂O₅ based compound, and a crosslinking agent (C) in which the ratio by mass content of the above-mentioned anticorrosive pigment (B) is from 10 to 80 wt % with respect to the sum of the solid fraction of the resin of the above resin film forming resin (A) and the above cross-linking agent (C), the content of the total amount of eluted ions in the 10% aqueous solution of the above-mentioned anticorrosive pigment (B) is from 10 ppm up to 100 ppm also described is a paint film that was obtained by the application of a chromium-free paint composition.

EFFECT: chromium-free paint composition is obtained, and it has an increased corrosion resistance.

8 cl, 8 tbl, 34 ex