EPOXY-URETHANE FILLING COMPOUND Russian patent published in 2015 - IPC C09K3/10 

FIELD: chemistry.

SUBSTANCE: invention relates to production of polymer compositions for filling, sealing and impregnating separate components and blocks of radio and electrical equipment for electrical insulation thereof, as well as protection from the environment and mechanical action. The epoxy-urethane filling compound includes an isocyanate-containing prepolymer - a reaction product of a polyester and a polyisocyanate based on 4,4'-diphenylmethane diisocyanate in ratio of 1:18-20, a hydroxyl-containing component - a reaction product of epoxy resin, polyester and N,N'-tetraoxypropylene diamine with molecular weight of 290 (lapramol 294) in ratio of 2-4:16-18:1-2, filler - ground talc, titanium dioxide, aluminium oxide and a solvent.

EFFECT: invention provides improved strength properties.

2 tbl, 8 ex