FIELD: chemistry.
SUBSTANCE: invention relates to preparation of surface coating solutions which contain boehmite. The surface coating solution is a latex paint and contains a trituration solution, a polymer emulsion and a solvent. The trituration solution is prepared using an active solution which contains a base in form of an aqueous solution and boehmite particles contained in the base. The boehmite particles are anisotropic moulded particles having mould ratio of 3:1 and are activated by substances selected from a group which includes ammonium hydroxide, alkali- or alkali-earth metal salt, nanoclay or colloidal silica. The surface coating solution has surface spreading and distribution with formation of a uniform film of at least 6 mil, and sag resistance of over 7 mil or surface spreading and distribution with formation of a uniform film of over 6 mil, and sag resistance of at least 7 mil. Described also is a method of preparing the surface coating solution involving the following operations: activation of boehmite particles with substances selected from a group which includes ammonium hydroxide, alkali- or alkali-earth metal salt, nanoclay or colloidal silica in order to form a water-based active solution; preparation of a trituration solution using the active solution; and preparation of a surface coating solution using the trituration solution, polymer emulsion and solvent.
EFFECT: solution enables to obtain coating with good technical properties.
42 cl, 2 tbl, 3 dwg, 2 ex
