EPOXY-URETHANE POWDER COATING COMPOSITION Russian patent published in 2024 - IPC C09D5/03 C09D163/02 C09D7/61 

FIELD: chemistry.

SUBSTANCE: invention relates to the paint industry and is intended to protect metal surfaces from destruction under the effect of aggressive media and abrasive wear. Epoxy-urethane composition for powder coatings includes epoxy diane resin “ЭД-10”, dicyandiamide and filler, and additionally contains aluminium oxide nanofibres with diameter from 3 to 50 nm and epoxy-urethane rubber “ПЭФ-3А”, with the following ratio of ingredients, wt.%: epoxy diane resin “ЭД-10” 40.000–60.000, dicyandiamide 1.800–2.700, epoxy urethane rubber “ПЭФ-3А” 0.100–23.699, filler 34.500–44.500 and aluminium oxide nanofibres 0.001–5.000.

EFFECT: improved physical and mechanical characteristics of the coating (mechanical strength, relative hardness, resistance to abrasive wear) while maintaining high adhesion and resistance in aggressive media.

3 cl, 2 tbl, 4 ex