LATEX PRIMING COMPOSITION Russian patent published in 2008 - IPC C09D5/34 C09D5/02 

FIELD: chemistry.

SUBSTANCE: invention pertains to production of coating materials, in particular to finishing materials, used for external and internal finishing of buildings and other structures, and more specifically relates to materials for coating concrete surfaces. Description is given of the latex priming composition, which contains a latex film-forming agent in form of a 50% syrup of acrylic dispersion DL-430 or Acronal-290 based on a copolymer of methylacrylate, butylacrylate, acrylamide, styrene and ethylbenzene in quantity of 5-50 mass %, plasticiser - dibutylphtalate or dioctylphtalate in quantity of 0.2-3.0 mass %, surface active substances based on polyoxyethylene esters of alkylphenols in quantity of 0.2-1.0 mass %, kaolin 20-30 mass %, fine-dispersed chalk 20-30 mass %, thickener 0.4-6.0 mass %, carbon black 0.2-1.0 mass % and water. The composition contains an extra technical target additive, chosen from a group containing a coalescent additive, anti-foaming agent, antiseptic additive, alkali, antifreeze or their mixture.

EFFECT: obtaining latex priming with short drying time, low water absorption and vapour permeability, high freezing and heat resistance.

2 cl, 1 tbl, 5 ex