| 摘要 |
FIELD: manufacture of building materials. SUBSTANCE: invention relates to building materials for protection against corrosive effects on metallic, concrete, ferrous-concrete, and wood surfaces. Composition contains pigment and/or dye, filler, film-forming agent: mixture of epoxy-rubber adduct obtained by functional groupsinvolving cocondensation, in stoichiometric proportions, of low-molecular epoxide resin with liquid nitrile rubber in presence of amine-type hardener, in particular mixture of polyamine or mixture of polyamines with aminosilane, amount of hardener being 2-22 wt parts per 100 wt parts of composition. Polyamine or polyamine mixture utilized can be diethylenetriamine and/or triethylenetriamine, and/or polyethylenepolyamine, and/or cycloaliphatic amine product, and/or polyamidoacids. Aminosilane utilized can be gamma-aminopropyltriethoxysilane or product of hydrolytic polycondensation of gamma-aminopropyltriethoxysilane in cyclohexanone or toluene. Hardener can further contain UV absorber, in particular phenol or 2-(2H-benzotriazol-2- yl)-4,6-bis(1-methyl-1-phenylethyl)-(9Cl). EFFECT: enhanced protection against action of petroleum derivatives, acids, bases, and gaseous oxides, increased resistance of treated surfaces against atmospheric effects on sunlight, increased frost resistance, and improved appearance. 4 cl, 2 tbl |
