WATER-DISPERSED LACQUER COMPOSITION Russian patent published in 2018 - IPC C09D5/08 C09D5/02 C09D133/00 

FIELD: chemistry.

SUBSTANCE: invention relates to aqueous-dispersion lacquer materials based on acrylic copolymers and can be used as a primer and as an independent lacquer composition for protection against corrosion of metallic and non-metallic materials, used in aggressive atmospheric conditions, including in conditions of high humidity. Aqueous-dispersion anticorrosive lacquer composition comprises, wt%: acrylic dispersion 20.0-50.0, filler pigments 18.0-30.0, dispersant 0.5-1.5, thickener 0.2-0.5, defoamer 0.1-0.15, surfactants 0.02-0.07, plasticiser 0.4-1.2, sodium nitrite 0.4-1.0, as a water-soluble corrosion inhibitor it contains a mixture of sodium nitrite 0.4-1.0, sodium hexametaphosphate 3.0-5.0 and potassium or sodium silicate 2.0-3.5, which is also a modifier of the properties of the film coating.

EFFECT: technical result is high anticorrosive properties of the paint coatings obtained with respect to atmospheric corrosion and corrosion in areas with marine climate, as well as an increase in hardness and resistance to wet abrasion.

1 cl, 2 tbl, 2 ex