| 摘要 |
A multilayered, sound-insulating panel comprising a facing layer, a plastic foam core layer having attached thereto, a structure, to which the core layer is fixed at separated contact points leaving gaps between the core layer and the structure, and, in case of long spans and/or thin facing layers, travel stops to keep the core layer at a certain distance from the structure, wherein the core layer material is a semi-rigid, cellular material containing more than 50 preferably more than 90 percent open cells; has a tensile strength of more than 50 kPa, preferably more than 90 kPa; has a compressive strength from 5 to 200 kPa, preferably from 15 to 80 kPa, at 10 percent deformation, and wherein the attachment of the core layer to the facing layer is substantial, and the distance between the contact points is at least 350 mm, and preferably ranges from 450 to 600 mm.
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