LATENT CURING AGENT

摘要

The invention provides an aluminum alcoholate type latent curing agent which can cure thermosetting epoxy resins under the conditions of moderately low temperature and short time; and a process for the production of the latent curing agent by which the curing conditions of the curing agent can be controlled relatively easily. The latent curing agent can be produced by reacting an aluminum alcoholate with a silsesquioxane-type oxetane derivative in the presence of a cellulose ether insoluble or slightly soluble in water. The latent curing agent has a coating layer made of the cellulose ether. It is preferable that the latent curing agent be surface-treated with an isocyanate compound.