| 摘要 |
The thermosetting epoxy resin composition of the present invention includes an aluminum chelate/silanol curing catalyst system, an epoxy resin, and an anion-trapping agent. The anion-trapping agent is preferably an aromatic phenol derivative or an acid anhydride. Examples include bisphenol S, bisphenol A, bisphenol F, and 4,4′-dihydroxyphenol ether, and acetic anhydride, propionic anhydride, maleic anhydride and phthalic anhydride. The aluminum chelate/silanol curing catalyst system is composed of an aluminum chelator and a silane-coupling agent. The aluminum chelator is preferably a latent aluminum chelate curing agent carried by a porous resin obtained through interfacial polymerization of a polyfunctional isocyanate compound. Even when a terminal epoxy resin is contained as the epoxy component of a thermosetting epoxy resin composition containing an aluminum chelate/silanol curing catalyst system, the epoxy resin composition can be configured to cure rapidly at low temperatures without termination of polymerization.
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