PROBLEM TO BE SOLVED: To provide a novel sound insulative coating material having heat resistance, and having sufficient sound insulation performance even in a case where a thickness is thin.SOLUTION: A sound insulative coating material is characterized in that a first elastic porous body, a porous film whose aperture ratio is 0.1-5% and aperture diameter is 50-500 μm, and a second elastic porous material are laminated in this order. Preferably, the sound insulative coating material further has a skin material on at least one of an external surface side of the first elastic porous body and an external surface side of the second elastic porous body.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】第一の弾性多孔質体と、開孔率が0.1〜5%で開孔径が50〜500μmである多孔質フィルムと、第二の弾性多孔質体とが、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り、好ましくは、上記第一の弾性多孔体の外表面側および第二の弾性多孔質体の外表面側の少なくとも一方にさらに表皮材を有する防音用被覆材である。【選択図】なし
SOUND INSULATIVE COATING MATERIAL AND ENGINE UNIT
防音用被覆材およびエンジンユニット
2018-09-13
Patent
Electronic Resource
Japanese
IPC: | F02B INTERNAL-COMBUSTION PISTON ENGINES , Brennkraftmaschinen mit innerer Verbrennung mit Verdrängerwirkung / 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 |
NTRS | 1977
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