Method for producing an acid curing agent containing material and an acid curing agent containing material

Acid hardener content of the present invention, an acid curing agent having an acid group, and contains a polyester, acid curing agent, the acidic group has been blocked with a compound having a reactivity to acid groups It is present in the state. Thus, acid-curing agent-containing composition which can prepare a resin composition capable of reliably curing the acid-hardening resin at a point of interest, and production of the acid curing agent containing material capable of producing such acid-curing agent-containing composition the method can be provided.