EPOXY ADHESIVE BINDING AND FILMING ADHESIVE BASED THEREON Russian patent published in 2019 - IPC C09J163/00 C09J7/21 C09J7/40 B05D5/10 

FIELD: manufacturing technology.

SUBSTANCE: group of inventions relates to the adhesive industry and can be used to make parts from polymer composite materials, layered and honeycomb structures, for making adhesive joints of metal materials. Epoxy adhesive binder contains components at the following ratio, wt. %: 17.0–31.0 of rubber-containing component; 5.0–10.0 polyarylsulphone; 4.0–7.0 of polyether sulphone; 16.0–25.5 of difunctional epoxy resin based on bisphenol A; 21.0–34.0 of polyfunctional epoxy resin; 6.0–9.0 of aromatic diamine hardener; 4.0–7.0 dicyandiamide latent curing agent; 0.4–2.5 of an asymmetrically disubstituted urea accelerator. Rubber-containing component consists of rubber nanoparticles of "core-shell" type, distributed in epoxy resin based on bisphenol A. Film adhesive is a paper with an anti-adhesion coating and a layer of epoxy adhesive binder applied thereon.

EFFECT: reduced viscosity of adhesive binder and increased area of mutual contact of glue and glued surfaces, which increases adhesion strength and stability, process viability at storage temperature of 25 °C.

4 cl, 2 tbl, 10 ex