WATER-DISPERSION PAINT COMPOSITION Russian patent published in 2017 - IPC C09D5/00 C09D125/08 C08K3/00 

FIELD: chemistry.

SUBSTANCE: composition contains a styrene-acrylic dispersion, which is a suspension of particles of a copolymer of styrene with acrylic ester in an aqueous solution of a surfactant, an antifoaming agent and a preservative, pigment - titanium dioxide, a filler - calcium carbonate and kaolin, a dispersant, which is a water solution of sodium polyacrylate, and water in the following ratio of components, wt %: styrene-acrylic dispersion, 30-35, titanium dioxide 10-15, kaolin 40-50, calcium carbonate - 4-6, dispersant - 3-5, water - the rest. The mixture of the initial components is treated in the vortex layer apparatus.

EFFECT: simplification and acceleration of the process of making paints, reducing the rate of its delamination, reducing the amount of expensive pigment in its composition while preserving the decorative protective properties.

2 tbl, 3 ex