To provide a sound absorption board capable of improving rigidity while having sound absorbing properties, and a package tray, luggage board and sound insulation structure including the sound absorption board.SOLUTION: A sound absorption board 10 contains a polyurethane foam 11 having an open cell structure, and includes: a pair of permeable skin material 20 that is integrated with the front and back surfaces of the polyurethane foam 11, respectively; and an impregnated layer 22 impregnated and cured with a raw material 11M of the polyurethane foam 11 and included in the skin material 20. Quantity of airflow of the skin material 20 including the impregnated layer 22 based on JIS K6400-7 B method: 2012 is 3 to 90 ml/cm2/s.SELECTED DRAWING: Figure 1

    【課題】吸音性を有しつつ剛性を向上させることが可能な吸音ボード、並びに、その吸音ボードを含むパッケージトレイ、ラゲッジボード及び遮音構造の提供。【解決手段】吸音ボード10は、連続気泡構造を有するポリウレタンフォーム11を含み、ポリウレタンフォーム11の表裏の面にそれぞれ一体化され、通気性を有する1対の表皮材20と、表皮材20に含まれ、ポリウレタンフォーム11の原料11Mが含浸硬化した含浸層22と、を備える。含浸層22を含む表皮材20のJIS K6400-7 B法:2012に基づく通気量は、3~90ml/cm2/sとなっている。【選択図】図1


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    Title :

    SOUND ABSORPTION BOARD, PACKAGE TRAY, LUGGAGE BOARD AND SOUND INSULATION STRUCTURE


    Additional title:

    吸音ボード、パッケージトレイ、ラゲッジボード及び遮音構造


    Contributors:

    Publication date :

    2022-03-14


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    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 / E04B Allgemeine Baukonstruktionen , GENERAL BUILDING CONSTRUCTIONS / E04C STRUCTURAL ELEMENTS , Bauelemente



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