To provide a vehicle floor silencer that provides appropriate lightness, noise insulation properties, and treading comfort (hardness) and a manufacturing method thereof.SOLUTION: In a vehicle floor silencer 10 made of polyurethane foam, the polyurethane foam is molded in a molding from a polyurethane raw material containing polyol, polyisocyanate, catalyst, and foaming agent. The polyol includes a main polyol of polyetherpolyol having a molecular weight of 3000 to 12000 and an EO rate of 5 to 20% and a sub-polyol of polyetherpolyol having a molecular weight of 2000 to 7000 and an EO rate of 50 to 90%. The foaming agent is water.SELECTED DRAWING: Figure 1

    【課題】軽量性、遮音性、踏み心地性(硬さ)が良好な車両用フロアサイレンサーとその製造方法の提供を目的とする。【解決手段】ポリウレタンフォームからなる車両用フロアサイレンサー10において、ポリウレタンフォームは、ポリオール、ポリイソシアネート、触媒、発泡剤を含むポリウレタンフォーム原料から金型内で成形されるものであり、ポリオールは、分子量3000~12000、EO率5~20%のポリエーテルポリオールからなるメインポリオールと、分子量2000~7000、EO率50~90%のポリエーテルポリオールからなるサブポリオールとを含み、発泡剤は水である構成とした。【選択図】図1


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    Title :

    VEHICLE FLOOR SILENCER AND MANUFACTURING METHOD THEREOF


    Additional title:

    車両用フロアサイレンサーとその製造方法


    Contributors:

    Publication date :

    2022-05-12


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / 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 / C08G MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS , Makromolekulare Verbindungen, anders erhalten als durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind



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