| abstract |
(57) [Summary] [Structure] The vibration damping / reinforcing sheet 1A of the present invention is a laminated body 2 in which a constraining layer 3 and a vibration damping layer 5 are laminated with an adhesive layer 4 interposed therebetween. In addition, a pressure-sensitive adhesive layer 6 is formed on the vibration-damping layer 5 of the laminate 2, and a release sheet 7 is attached to the pressure-sensitive adhesive layer 6. The constraining layer 3 is a layer that exerts a reinforcing effect on the adherend, and is made of a hard material such as metal. The adhesive layer 4 is composed of a pressure-sensitive adhesive, an adhesive, or an adhesive. The damping layer 5 is made of, for example, a viscoelastic material containing unvulcanized rubber and a vulcanizing agent. The adhesive layer 6 has tackiness in an uncured state, but is heated, It is composed of a tacky adhesive that has a strong adhesive force when cured by light irradiation, air blocking, and the like. [Effect] It has both the effect of reinforcing the adherend and the effect of damping. |