WATER-SOLUBLE AMINE AND ITS APPLICATION Russian patent published in 2014 - IPC C08G59/40 C08G59/18 C08G59/50 C08L63/00 C09D163/00 

FIELD: chemistry.

SUBSTANCE: claimed invention relates to compound VB of formula

or ,

where R¹ and R³ each independently represents alkyl, containing from 1 to 12 C atoms, possibly substituted with one or more halogen, or aryl, containing from 5 to 8 C atoms, and R² stands for hydrogen or alkyl, containing from 1 to 12 C atoms, possibly substituted with one or more halogen; or R¹ and R² together form a bivalent hydrocarbon group, representing a carbocyclic ring, which has from 5 to 8 carbon atoms, and R³ stands for alkyl, containing from 1 to 12 C atoms, possibly substituted with one or more halogen, or aryl, containing from 5 to 8 C atoms, or R² and R³ together form a bivalent hydrocarbon group, representing a carbocyclic ring, which has from 5 to 8 carbon atoms, and R¹ stands for alkyl, containing from 1 to 12 C atoms, possibly substituted with halogen, or aryl, containing from 5 to 8 C atoms, and R⁴ and R⁵ each independently on each other represent alkyl, containing from 1 to 12 C atoms; A stands for (a+b)-valent radical of a polyaminopolyepoxide adduct after removal of (a+b) primary aminogroups; a stands for an integer number from 0 to 3; and b stands for an integer number from 1 to 4; on condition that the sum of a and b equals an integer number from 1 to 4, and polyepoxide, constituting a base of the polyaminopolyepoxide adduct, represents polyepoxide E, preferably diepoxide E1, and has an epoxy-equivalent weigh (EEW) from 65 to 500 g/equ. Also described are a method of obtaining the said compound VB of formula (I) or (II), a hardening composition for epoxy resins, which contains it, and its application, as well as a two- or three-pack epoxy resin composition, a hardened composition for construction and application of the two- or three-pack epoxy resin composition.

EFFECT: obtaining novel compounds by a simple and fast method from widely available initial substances, applicable as epoxy resin hardeners, which possess storage stability and good viscosity, which contributes to fast and complete hardening of epoxy resin with ensuring good adhesion of the coating to substrate and good aesthetic and mechanical properties of the obtained coating.

19 cl, 4 tbl, 31 ex