WATER-DISPERSION PAINT-AND VARNISH COMPOSITION AND APPLICATION OF SAPROPEL AS ITS HYDROPHOBIC ADDITIVE Russian patent published in 2015 - IPC C09D5/02 

FIELD: chemistry.

SUBSTANCE: composition includes water anionic dispersion of copolymer based on acrylic acid ether, pigment, micromarble filler "Omiacarb", dispersant - sodium polyphosphate, preserver, foam-extinguisher, antifreeze, pH-medium stabiliser - 25% water ammonia solution, wetting agent - nonionogenic surface-active substance - OP-10, butyldiglycol as coalescent, polyurethane thickening agent, structuring additive. Composition contains water polymer dispersion "Acronal 740 S" as water anionic dispersion of copolymer based on acrylic acid ether, isothiazolinone internal preserver MERGAL K-14 as preserver, foam-extinguisher based on mineral oils MOUSSEX 7134 HE, melamine-formaldehyde resin as structuring additive, butyldiglycol as solvent of polymer dispersion, antifreeze and coalescent, with composition additionally containing sapropel as hydrophobic additive, with the following component ratio, wt %: water polymer dispersion "Acronal 740 S" 15.0-25.0, pigment 5.0-11.0, filler - Omiacarb 20.0-35.0, sodium polyphosphate 0.20-0.40, foam-extinguisher MOUSSEX 7134 HE 0.20-0.40, 25% water ammonia solution 0.30-0.50, wetting agent OP-10 0.15-0.30, butyldiglycol 3.5-6.5, polyurethane thickening agent 1.5-2.5, melamine-formaldehyde resin 5.5-10.0, sapropel 10.0-30.0, preserver MERGAL K-14 0.1, water - the remaining part. Also claimed is application of sapropel as hydrophobic additive.

EFFECT: invention makes it possible to create water-dispersion paint-and-varnish composition based on acryl copolymers with high decorative and protective properties.

2 cl, 5 tbl