EPOXY ADHESIVE BINDER AND FILM GLUE ON ITS BASIS Russian patent published in 2017 - IPC C09J163/10 C08K3/36 

FIELD: chemistry.

SUBSTANCE: epoxy adhesive binder contains components at the following ratio, wt %: liquid epoxyoxazolidone resin (50.0-77.0), polyethersulfone (6.0-20.2), a solid epoxy resin based on bisphenol A (4.95-23.50), a latent curing agent (4.0 -6.0) of dicyandiamide, a cure accelerator - asymmetrically disubstituted urea (0.5-2.0), aerosil modifier (0.3-5.0). The film glue is a paper with anti-adhesive coating and a layer of epoxy adhesive binder applied thereto, the surface density of the layer of the said binder on the release coating is 200-270 g/m².

EFFECT: increasing the strength of adhesive bond with uniform separation of the skin from the honeycomb core, increasing the degree of the temperature preservation of the cured adhesive binder glass transition after exposure in the heat-water chamber at a temperature of 70 degrees and a humidity of 85 percent for 30 days, the ability to cure the adhesive epoxy binder for more energy-efficient mode.

9 cl, 3 tbl, 12 ex