The modified paintwork materials with forced air-drying and perfected characteristic based on the urethane-alkyd and urethane-melamine-alkyd block copolymers which are used in protective anticorrosive coatings of different metallic constructions are designed. The kinetics of isocyanate oligomers and functional alkyd resins interaction during block copolymers-modifier synthesis is studied. The synthesized modifier composition was optimized along with the determination of the main characteristics influencing upon paintwork materials’ properties. The assortment of modified varnishes and enamels for different purposes with improved physical-mechanical characteristics are made; industry investigations of the experimental batch of the materials were conducted.

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