To provide a novel cladding material for sound insulation which has heat resistance and also has sufficient sound insulating performance even when its thickness is thin.SOLUTION: There is provided a cladding material for sound insulation characterized in stacking a first porous film of 0.1-5.0% in aperture ratio and 100-1,000 μm in aperture diameter, one or more elastic porous body layers, and a second porous film of 0.1-5.0% in aperture ratio and 100-1,000 μm in aperture diameter in this order.SELECTED DRAWING: None
【課題】耐熱性を有し、厚さが薄くても十分な防音性能を有する新規な防音用被覆材を提供する。【解決手段】開孔率が0.1〜5.0%で開孔径が100〜1000μmである第一の多孔質フィルムと、一以上の弾性多孔質体層と、開孔率が0.1〜5.0%で開孔径が100〜1000μmである第二の多孔質フィルムとが、この順番に積層されてなることを特徴とする防音用被覆材である。【選択図】なし
CLADDING MATERIAL FOR SOUND INSULATION AND ENGINE UNIT
防音用被覆材およびエンジンユニット
2019-01-17
Patent
Electronic Resource
Japanese
IPC: | G10K Tonerzeugungsvorrichtungen , SOUND-PRODUCING DEVICES / B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM , Schichtkörper, d.h. aus Ebenen oder gewölbten Schichten, z.B. mit zell- oder wabenförmiger Form, aufgebaute Erzeugnisse / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
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