EPOXY-BASED POLYMER PROTECTIVE COMPOSITION FOR CONCRETE AND METAL SURFACES Russian patent published in 2024 - IPC C09D5/08 C09D163/02 C09D7/40 

FIELD: protective coatings.

SUBSTANCE: epoxy protective compositions for producing barrier coatings intended for elements of building structures (concrete and metal) that are in continuous contact with water and chemical environments (acidic, alkaline and hydrocarbon), and can be used as an anti-filtration screen on the surfaces of industrial structures. The polymer protective composition consists of epoxy diane resin, a hardener, an active diluent, an epoxyurethane oligomer, and, if necessary, may contain an organic solvent, a fire retardant, and a thixotropic additive in the following component ratio, wt.%: epoxy diane resin – 39.7-46.9; active diluent – 2.2-7.4; epoxyurethane oligomer – 4.4-5.3; hardener – 38.3-45.2; thixotropic additive – 0.0-3.0; flame retardant – 0.0-5.0; organic solvent – 0.0-10.0.

EFFECT: protective two-component composition has high strength, elasticity and provides high adhesion to metal surfaces.

1 cl, 1 tbl, 7 ex