An adhesive composition having excellent life properties is provided. This adhesive composition achieves excellent life properties by containing an epoxy compound, an aluminum chelating agent, and a hindered amine compound. This is presumably because the aluminum chelating agent stably exists due to the coordination of the nitrogen atom of the hindered amine compound with aluminum of the aluminum chelating agent.

An adhesive composition, capable of achieving excellent life performance and a wide margin for mounting, includes a cationic polymerizable compound, an aluminum chelate/silanol-based curing catalyst, and a nucleophilic compound containing a sulfur atom having an unshared electron pair. The nucleophilic compound is a thiol compound or an episulfide compound. The aluminum chelate/silanol-based curing catalyst includes an aluminum chelate curing agent, and a silanol compound or a silane coupling agent. The aluminum chelate curing agent constitutes a latent aluminum chelate curing agent carried by a porous resin obtained through interfacial polymerization of a polyfunctional isocyanate compound.

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.

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.

The present invention concerns a curable adhesive composition, wherein the composition is a two-component composition comprising: (A) an adhesive component comprising: (i) an aliphatic glycidyl ether; (ii) a cycloaliphatic epoxy and/or an aromatic glycidyl ether; and (iii) a silane reducing agent; and (B) a catalyst component comprising: (iv) a Group 9 or Group 10 noble metal catalyst, wherein the adhesive component (A) and/or the catalyst component (B) further comprises an initiator; articles coated by the composition or component compositions thereof; methods of bonding articles using the composition or component compositions thereof; and kits comprising the composition or component compositions thereof.

The present invention concerns a curable adhesive composition, wherein the composition is a two-component composition comprising: (A) an adhesive component comprising: (i) an aliphatic glycidyl ether; (ii) a cycloaliphatic epoxy and/or an aromatic glycidyl ether; and (iii) a silane reducing agent; and (B) a catalyst component comprising: (iv) a Group 9 or Group 10 noble metal catalyst, wherein the adhesive component (A) and/or the catalyst component (B) further comprises an initiator; articles coated by the composition or component compositions thereof; methods of bonding articles using the composition or component compositions thereof; and kits comprising the composition or component compositions thereof.

An epoxy resin composition is provided comprising (A) an epoxy resin, (B) an aromatic amine-based curing agent in such amounts that an equivalent ratio of amino groups in component (B) to epoxy groups in component (A) ranges from 0.7/1 to 1.5/1, and (C) a curing accelerant in the form of arylborate salt. The composition has low-temperature curability and workability and is also improved in adhesion and adhesion retention.

An aluminum chelate-based latent curing agent for curing a thermosetting epoxy resin, in which an aluminum chelate-based curing agent is held in a porous resin obtained by, at the same time, subjecting a polyfunctional isocyanate compound to interfacial polymerization and subjecting a radical polymerizable compound to radical polymerization in the presence of a radical polymerization initiator, and the surface of the aluminum chelate-based latent curing agent has been subjected to inactivation treatment with an alkoxysilane coupling agent. An alkylalkoxysilane is preferred as the alkoxysilane coupling agent. The radical polymerizable compound preferably contains a polyfunctional radical polymerizable compound.

An aluminum chelate-based latent curing agent for curing a thermosetting epoxy resin, in which an aluminum chelate-based curing agent is held in a porous resin obtained by, at the same time, subjecting a polyfunctional isocyanate compound to interfacial polymerization and subjecting a radical polymerizable compound to radical polymerization in the presence of a radical polymerization initiator, and the surface of the aluminum chelate-based latent curing agent has been subjected to inactivation treatment with an alkoxysilane coupling agent. An alkylalkoxysilane is preferred as the alkoxysilane coupling agent. The radical polymerizable compound preferably contains a polyfunctional radical polymerizable compound.

An adhesive composition, capable of achieving excellent life performance and a wide margin for mounting, includes a cationic polymerizable compound, an aluminum chelate/silanol-based curing catalyst, and a nucleophilic compound containing a sulfur atom having an unshared electron pair. The nucleophilic compound is a thiol compound or an episulfide compound. The aluminum chelate/silanol-based curing catalyst includes an aluminum chelate curing agent, and a silanol compound or a silane coupling agent. The aluminum chelate curing agent constitutes a latent aluminum chelate curing agent carried by a porous resin obtained through interfacial polymerization of a polyfunctional isocyanate compound.