Patent ID: 10626215

Abstract:
An aluminum-chelate-based latent curing agent is capable of showing excellent solvent resistance and excellent storage stability at room temperature without impairing low temperature rapid curability of resin composition, when preparing one-pack type thermosetting epoxy resin composition by blending aluminum-chelate-based latent curing agent holding aluminum-chelating agent on porous resin particles obtained by subjecting polyfunctional isocyanate compound to interfacial polymerization into alicyclic epoxy resin showing extremely high cationic polymerizability. Aluminum-chelate-based latent curing agent for curing thermosetting epoxy resin is configured such that aluminum-chelating agent is held on porous resin obtained by subjecting polyfunctional isocyanate compound to interfacial polymerization, and that surface activity inhibition treatment is performed by epoxy-alkoxy-silane coupling agent.