LATEX PAINT COMPOSITION Russian patent published in 2017 - IPC C09D109/08 C09D109/10 C09D5/08 

FIELD: chemistry.

SUBSTANCE: invention relates to aqueous dispersion materials – rust modifiers, used for painting metal surfaces, including with scale and tightly held rust. Described is a water-dispersion paint composition rust modifier for producing independent protective coating, containing film-forming agent, pigment, filler, nonionic surfactant, nitrile trimethylphosphonic acid and oxyphosphonic acid, water, wherein film-forming agent used is 50 % aqueous dispersion of butadiene-styrene latex with pH 6.8–7.2, as well as 50 % aqueous dispersion of styrene-acrylate latex Akremos-102 with pH 7.5–8.2, as a thickener – acrylic dispersion Akremos-402, a oxyphosphonic acid – oxyethylidenephosphonic acid, which further contains an antifoaming agent in following content of components, wt%: 50 % aqueous dispersion of butadiene-styrene latex with pH 6.8–7.2 31.0–37.0, 50 % aqueous dispersion of styrene-acrylic latex Akremos-102 with pH 7.5–8.2 6.0–3.0, thickener-acrylic dispersion Akremos-402 1.0–3.0, nitrile trimethylphosphonic acid 1.5–2.0, oxyethylidenephosphonic acid 0.3–0.4, filler 11.5–19.0, pigment 0.7–14.25, nonionic surfactant 0.1–0.4, antifoaming agent 0.1–0.3, ethylene glycol 8.0–11.0, water – balance.

EFFECT: obtaining coatings based on water-dispersion material with improved anticorrosion properties.

1 cl, 2 tbl