Abstract: Disclosed is a low-temperature curable composition comprising: (A) at least one curable component selected from an epoxy resin and a blocked isocyanate, and (B) an amine-based latent curing agent, wherein a temperature peak of a reaction of the amine-based latent curing agent (B) with a bisphenol A type epoxy resin is between 70° C. and 110° C.

Abstract: The present invention provides an epoxy resin-based curable composition which may be used as a structural adhesive for an automobile. Particularly, the present invention provides an epoxy resin-based curable composition having excellent low-temperature curability, while maintaining good storage stability and good adhesion. The present invention relates to a curable composition comprising an epoxy resin, a urea-based curing accelerator (A) and an amine-based curing agent (B) having a pyrazine ring.

Abstract: The present invention provides a one-component type thermosetting adhesive composition used as an automotive structural adhesive having high damping performance without reducing adhesive strength and having excellent low-temperature curability and a body structure for vehicle, on which the one-component type thermosetting adhesive composition is applied. The present invention relates to a one-component type thermosetting adhesive composition comprising an epoxy resin and an amine-based latent curing agent, wherein the epoxy resin comprises: (1) a dibasic acid ester-based epoxy resin, (2) a butadiene-acrylonitrile copolymer modified epoxy resin, and (3) an unmodified bisphenol A type epoxy resin, and wherein a thermally cured product formed from the composition has: a loss tangent tan ? at 23° C. of not less than 0.2 as a damping performance, and a Young's modulus of not less than 50 MPa, and a body structure for vehicle, on which the one-component type thermosetting adhesive composition is applied.

Abstract: The present invention provides an epoxy resin-based curable composition which may be used as a structural adhesive for an automobile. Particularly, the present invention provides an epoxy resin-based curable composition having excellent low-temperature curability, while maintaining good storage stability and good adhesion. The present invention relates to a curable composition comprising an epoxy resin, a urea-based curing accelerator (A) and an amine-based curing agent (B) having a pyrazine ring.

Abstract: The present invention provides a one-component type thermosetting adhesive composition used as an automotive structural adhesive having high damping performance without reducing adhesive strength and having excellent low-temperature curability and a body structure for vehicle, on which the one-component type thermosetting adhesive composition is applied. The present invention relates to a one-component type thermosetting adhesive composition comprising an epoxy resin and an amine-based latent curing agent, wherein the epoxy resin comprises: (1) a dibasic acid ester-based epoxy resin, (2) a butadiene-acrylonitrile copolymer modified epoxy resin, and (3) an unmodified bisphenol A type epoxy resin, and wherein a thermally cured product formed from the composition has: a loss tangent tan ? at 23° C. of not less than 0.2 as a damping performance, and a Young's modulus of not less than 50 MPa, and a body structure for vehicle, on which the one-component type thermosetting adhesive composition is applied.