STABLE IN STORAGE WATER-BASED EPOXY-AMINE SOLIDIFIED SYSTEMS Russian patent published in 2014 - IPC C08G59/18 C08G59/40 C08L63/00 C09D163/00 C09D5/10 C09D5/02 

FIELD: chemistry.

SUBSTANCE: invention relates to non-aqueous hardening agents for epoxy resins, dispersed in water, a method of their obtaining, as well as to an epoxy resin composition, applied in paints, glues or coupling agents, obtained with the application of the said hardening agent. The composition of the hardening agent contains (a) the first amine adduct, (b) if necessary the second amine adduct, (c) a hydrophobic alkylamine or diamine, or hydrophobic hydrocarbon resin, or their combination, (d) a component, containing amino- or polyaminopolyalkyleneglycol fragments, aminosilane and (e) if necessary metal powder. The first amine adduct represents a product of a reaction between an intermediate with terminal amine groups and a monofunctional epoxy compound. The intermediate is obtained by a reaction between, at least, one polyamine or polyamidoamine, containing, at least, 3 active amine hydrogen atoms, and, at least, one epoxy resin with functionality, at least 1.5. The composition of paint or a coating contains a composition of epoxy resin with the said solidifying agent and zinc metal powder. A non-aqueous solidifying agent provides the viability of the binding agent, which constitutes several hours, and in the presence of a metal, such as zinc, nearly no formation of hydrogen is observed.

EFFECT: composition is stable in storage for several hours of the work viability, which makes it possible to obtain solidified coatings, demonstrating good exploitation characteristics.

13 cl, 7 tbl, 5 ex