FIELD: chemistry.
SUBSTANCE: invention relates to field of paint-and-varnish coatings. Epoxy-caoutchouc composition for protective coatings contains film-forming substance, which includes epoxy-caoutchouc adduct, oligoetherepoxide, pigments, fillers and hardening agent. Epoxy-caoutchouc adduct is obtained in presence of polysulfide low molecular caoutchouc in equimolar quantity to butadiene-nitrile caoutchouc and excess of low molecular epoxy resin, taken in quantity 13-17 mole per mole of caoutchoucs.
EFFECT: invention provides coatings based on claimed composition, possessing increased electrical insulation properties, as well as stability to temperature influences from -50 to +100°C and hydrostatic pressure 80·105 Pa.
4 cl, 1 tbl, 9 ex
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Authors
Dates
2015-05-20—Published
2013-08-06—Filed