Reinforcing adhesive sheets

摘要

A thermosetting adhesive sheet is described, comprising a thermosetting resin sheet-shaped prepreg with a reinforcing material embedded therein, and a flattened tubular material provided on one side of the prepeg, said flattened tubular material being capable of nearly recovering the original tubular form on heating and being narrower in width than the prepreg. The prepreg may be of the two-layer structure comprising a first thermosetting resin composition layer and a second thermosetting resin composition layer.