COMPOSITION FOR GUMMING SURFACES (VARIANTS) AND METHOD FOR ITS APPLICATION Russian patent published in 2021 - IPC C09D175/02 C08G18/46 B05D7/00 

FIELD: polymer coatings.

SUBSTANCE: invention relates to polymer coatings based on polyamines and isocyanates and to methods of their application. A composition for gumming surfaces consisting of, weight percentage: component A containing an amine methacrylicated reaction product between polyamine and monomethacrylate, where the ratio of the equivalent of isocyanate groups and the equivalent of amine groups is greater than 1 (41.5-54.2); component B containing isocyanate, including non-blocked compounds capable of forming a covalent bond with the reactive group (45-55); and component C containing pigment, polyester, aliphatic polyethyrdiol with high reactivity and stabilizer (0.8-3.5). A method for applying the composition is also proposed. EFFECT: technical result: the proposed composition makes it possible to protect surfaces made of metal, wood, plastic, concrete under operating conditions at ultra-low temperatures with an increase in the frost resistance of the coating to -75°C, ensuring resistance to temperature shock from -50°C to 50°C, increasing noise insulation to 95%.

9 cl, 2 tbl