To provide a soundproofing material which can obtain good soundproof properties (including vibration damping properties), by eliminating a state of being bent toward the polyurethane foam side opposite to the skin after the skin is integrally molded, when it is placed on the floor surface of a vehicle or the like so that the polyurethane foam can adhere to the floor surface.SOLUTION: In a soundproofing material 10 in which a skin material 30 is integrally molded on one side of a polyurethane foam 20, a sample of the soundproofing material 10 of 200 mm square and with thickness of 20 mm has compression hardness of 500 N or more with load at 50% compression when compressed to 80% of the sample thickness by a compression jig of φ80 mm at a test speed of 50 mm/min, as a measurement value. And in the polyurethane foam 20, slits 25 are formed which extend from a surface opposite to the skin material 30 to the skin material 30 side.SELECTED DRAWING: Figure 1

    【課題】表皮一体成形後に表皮とは反対のポリウレタンフォーム側へ曲がった状態を、車両等の床面に載置された際に解消して、床面にポリウレタンフォームが密着できるようにし、それによって良好な防音性(制振性を含む)が得られる防音材の提供を目的とする。【解決手段】ポリウレタンフォーム20の片面に表皮材30が一体に成形された防音材10において、防音材10は、200mm角×厚み20mmのサンプルを、φ80mmの圧縮冶具により、試験スピード50mm/minでサンプル厚みの80%まで圧縮した際の50%圧縮時の荷重を測定値とした圧縮硬さが500N以上であり、ポリウレタンフォーム20は、表皮材30とは反対側の表面から表皮材30側へスリット25が形成されている。【選択図】図1


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    Title :

    SOUNDPROOFING MATERIAL


    Additional title:

    防音材


    Contributors:

    Publication date :

    2021-12-27


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    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 / 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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