AQUEOUS SOLUTION OF WATER-SOLUBLE EPOXIDE RESIN, SOLID PREPARED THEREFROM, AND METHOD OF PREPARATION THEREOF Russian patent published in 2002 - IPC

FIELD: polymer materials. SUBSTANCE: invention relates to epoxide resin-based solids or powders finding use as sealing materials, adhesives, and coating compositions. Aqueous solution of resin is prepared by mixing, at 10 to 40 C, epoxide compound or its solution in organic solvent with amine compound of general formula NH₂N(R¹)(R²), or its aqueous solution, or its solution in organic solvent or in mixture of water in organic solvent at epoxide-to-amine equivalent ratio (0.5-2.0):1 to give epoxide resin solution, which is supplemented by water and heated to remove organic solvent, concentration of epoxide compound in organic solvent varying between 5 and 100% and that of amine compound (in water, organic solvent, or their mixture) between 10 to 100%. Aqueous solution of epoxide resin is dried to give solid, which is then ground into powder. EFFECT: simplified technology due preparation of modified water-soluble epoxide resins that do not require additional protonation. 7 cl, 4 ex