| 摘要 |
FIELD: chemistry. ^ SUBSTANCE: polyurea coating composition is obtained from a reaction mixture which contains an isocyanate functional component and an amino functional component, where the ratio of equivalents of isocyanate groups to equivalents of amino groups is greater than 1, volume ratio in the mixture of the isocyanate functional component to the amino functional component is 1:1, in which at least one polyisocyanate monomer constitutes at least 1 wt % of the isocyanate functional component, where the isocyanate functional component contains the reaction product of polyisocyanate and at least two polyols, and the amino component contains an aspartate-based amino functional reactive resin. The multicomponent composite coating contains a first polyurea layer which is deposited from the first composition, and a second polyurea layer which is deposited from the second composition, in which at least one composition, chosen from the first composition and second composition, includes a polyurea coating composition. ^ EFFECT: obtaining compositions which improve adhesion to earlier deposited coatings or to a substrate, characterised by low viscosity, which improves fluidity of the coating composition for a long period of time. ^ 24 cl, 3 dwg, 1 tbl, 1 ex |
