PROBLEM TO BE SOLVED: To manufacture a sound absorption sheet that can stably obtain high-sound absorption performance without causing complication of manufacturing process.SOLUTION: The sound absorption sheet 10 having a foam layer 13 and skin layers 11, 12 is formed by extrusion molding with which integral molding is readily conducted. The foam layer 13 is formed from a front-side skin layer 11 to a back-side skin layer 12 and a hole 10a is formed in at least one of the skin layers to improve sound absorption performance.SELECTED DRAWING: Figure 5
【課題】高い吸音性能が安定して得られる吸音シートを、製造工程の複雑化を招くことなく製造できるようにする。【解決手段】発泡層13とスキン層11、12を有する吸音シート10を一体成形が容易な押出成形品とし、発泡層13を表側スキン層11から裏側スキン層12まで形成し、少なくとも一方のスキン層に孔10aを形成して吸音性能を向上させた。【選択図】図5
SOUND ABSORPTION SHEET
吸音シート
10.08.2017
Patent
Elektronische Ressource
Japanisch
IPC: | B29C Formen oder Verbinden von Kunststoffen , SHAPING OR JOINING OF PLASTICS / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / G10K Tonerzeugungsvorrichtungen , SOUND-PRODUCING DEVICES |
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