To provide a soundproof material and a vehicle soundproof material with an improved soundproof function.SOLUTION: A vehicle soundproof material 20 includes: a foam synthetic resin layer 21 having a plurality of through holes 21a formed along a thickness direction; and a first layer 22 for blocking openings of the through holes 21a.SELECTED DRAWING: Figure 4A
【課題】防音機能がより向上された防音材及び車両用防音材を提供する。【解決手段】車両用防音材20は、厚み方向に沿って形成された複数の貫通穴21aを有する発泡合成樹脂層21と、貫通穴21aの開口を塞ぐ第1層22と、を備えている。【選択図】 図4A
SOUNDPROOF MATERIAL AND VEHICLE SOUNDPROOF MATERIAL
防音材及び車両用防音材
2023-03-17
Patent
Electronic Resource
Japanese
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