| abstract |
A curing agent for epoxy resins, the curing agent containingnas an active ingredient a compound represented by the formula (1)nor a salt thereof and an amine compound or a salt thereof, thencuring agent being characterized in that at least one of thencompound represented by the formula (1) and the amine compound is ansalt of thiocyanic acid; and an epoxy resin composition having thencuring agent incorporated therein:n NH 2 N(R 1 ) (R 2 ) nwherein R 1 and R 2 are the same or different and each representsnalkyl having 1 to 8 carbon atoms, aryl, a nitrogen-containingnheterocyclic group or when taken together, represents alkylenenhaving 2 to 11 carbon atoms or a group represented by -R 3 -R 4 -R 5 -whereinnR 3 and R 5 are the same or different and each representsnalkylene having 1 to 8 carbon atoms, and R 4 is an oxygen atom, ansulfur atom or a group =NR 6 or =NNH 2 , wherein R 6 is a hydrogen atomnor alkyl having 1 to 8 carbon atoms. |