WATER REPELLENT ORGANOSILICON MATERIAL Russian patent published in 2017 - IPC C04B24/42 C04B40/00 C04B41/49 

FIELD: chemistry.

SUBSTANCE: method of increasing the hydrophobicity of the porous building products by processing the specified products for construction or arrangement providing for specified construction product, water repellent material is characterized in that porous building product or a composition providing the specified construction product is treated with an aqueous suspension of microcapsules, where the microcapsules contain a water repellent organosilicon core material selected from the group consisting of organosilane partially condensed organosilane and a branched siloxane resin, and a shell of reticulated polymer based on silicon containing parts of silica. Specified construction product selected from the group consisting of substrates based on cement, bricks, clay-based, gypsum-based, lime-based and wood-based substrates and composition that provides the specified building product is selected from the group consisting of cementitious compositions and clay-based compositions.

EFFECT: reducing water absorption, reducing the adverse effect on adhesion of coating or paint further applied.

12 cl, 2 dwg, 5 tbl, 8 ex