ANTICORROSIVE POLYMER COMPOSITION Russian patent published in 2002 - IPC

FIELD: corrosion protection. SUBSTANCE: invention relates to composite anticorrosive materials to create protective coatings for metallic and concrete units against corrosion and thereby erosion both in air and in water, which also manifest biocyde properties. Proposed composition is based on butadiene/acrylonitrile/methacrylic acid copolymer (molecular weight 3500 to 7000) and includes 4,4'-isopropylidene epoxide resin (epoxy group level 18-22), polyethylene-polyamine, ethyl acetate as polar solvent, and biocyde additive, in particular bis(tributyltin)oxide, to prevent overgrowth of coagulation with lower and microorganisms. Combination of components at a certain proportions provides high adhesion of coatings to metallic and concrete surfaces. EFFECT: enabled safe operation of units both in air and in water without biological overgrowth. 2 tbl, 6 ex