| abstract |
The present invention provides a thermosetting structural epoxy adhesive having excellent storage stability. The following compounds are used as reinforcing agents. The compound includes an elastomeric prepolymer residue selected from the group of polyurethane having an isocyanate end group, polyurea and polyurea polyurethane, and the isocyanate end group of the prepolymer residue includes primary aliphatic, aliphatic Capping selected from the group consisting of cyclic, heteroaromatic, and aromatic aliphatic amines, secondary aliphatic, alicyclic, aromatic, heteroaromatic, and aromatic, aliphatic amines, thiols and alkylamides Capped by the compound, the capping compound is attached to the end of the polymer chain of the elastomeric prepolymer in such a way that the end to which it is attached no longer has a reactive group. [Selection figure] None |