POWDER COMPOSITION OF WATER-REDISPERSABLE PAINT Russian patent published in 2015 - IPC C09D5/03 

FIELD: chemistry.

SUBSTANCE: invention relates to paint-and-varnish compositions, in particular to powder of water-redispersible compositions, intended for obtaining cheap protective-decorative coatings on non-metal substrates, as well as for internal painting of building and constructions on brick, concrete, plastered, wooded and other porous surfaces. Powder composition of water-redispersible paint includes Portland cement, inorganic pigment, hydrophobising additive, filling agent, hardening accelerator, potassium or sodium silicate, polymer binding agent, dispersant, anti-caking agent, foam-extinguisher, mica, emulsifier, water-retaining additive, and thickening agent. As filling agent it contains kaolin, dolomite or marble sand.

EFFECT: invention provides production of non-cracking low-viscosity redispersible paint, with high adhesion and chemical resistance in alkaline and acidic media, as well as with resistance to direct shock.

2 tbl, 10 ex