| 摘要 |
A curing agent for epoxy resins, the curing agent containing as an active ingredient a compound represented by the formula (1) or a salt thereof and an amine compound or a salt thereof, the curing agent being characterized in that at least one of the compound represented by the formula (1) and the amine compound is a salt of thiocyanic acid; and an epoxy resin composition having the curing agent incorporated therein: NH2N(R1) (R2) ~(1) wherein R1 and R2 are the same or different and each represents alkyl having 1 to 8 carbon atoms, aryl, a nitrogen-containing heterocyclic group or when taken together, represents alkylene having 2 to 11 carbon atoms or a group represented by -R3-R4-R5- wherein R3 and R5 are the same or different and each represents alkylene having 1 to 8 carbon atoms, and R4 is an oxygen atom, a sulfur atom or a group =NR.6 or =NNH2, wherein R6 is a hydrogen atom or alkyl having 1 to 8 carbon atoms.
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