WATER-DISPERSION PAINT AND METHOD FOR PRODUCTION THEREOF Russian patent published in 2014 - IPC C09D5/02 

FIELD: chemistry.

SUBSTANCE: invention relates to paint coatings and specifically to a method of producing water-dispersion paint, and the water-dispersion paint obtained using said method. The method of producing water-dispersion paint includes mixing titanium dioxide-based pigment granules with a reactive medium. The method uses granules of the same colour, obtained by mixing a granule base based on styrene-acrylic dispersion with a reactive medium containing a colloidal synthetic silicate with layered structure, sodium tripolyphosphate, a preservative and water, and adding said granules to the reactive medium. A binder and the preservative are then added to the obtained mixture. Before mixing, the granules are held for 2-24 hours until stabilisation. The granule base is obtained by dissolving in water a dispersant, the preservative, the first half of an antifoaming agent, a pigment and filler, followed by dispersion on a dissolver. A film-forming agent, the second half of the anti-foaming agent and a coalescing agent are then added to the obtained paste, mixed and thickened using a water-soluble nonionic cellulose ester. The binder is obtained by dissolving the preservative, styrene-acrylic dispersion and coalescing agent in water.

EFFECT: invention enables to produce water-dispersion paint, which provides a strong, wear-resistant and washable coating.

6 cl