Sound-damping sandwich panel

摘要

The sandwich board material, for acoustic insulation, has an additional layer (4) for thermal insulation. An adhesive layer (3) bonds it to a component (1) where the acoustics are to be improved. The bitumen damping layer (6) is on the outer side of the sandwich board (2). The additional layer (4) is a hard thermoplastic foam such as of polystyrene or polyethylene.