PROBLEM TO BE SOLVED: To provide a vehicular floor silencer of high practical utility.SOLUTION: In a vehicular floor silencer, 25% compressive hardness of the vehicular floor silencer is 40-150 N and a loss factor at a 600 Hz antiresonant point is 0.05 or more, when high molecular weight polyether polyol, low molecular weight polyether polyol, and polymeric polyol are employed in prescribed composition amounts, as polyol of a urethane foam raw material. Accordingly, in the vehicular floor silencer, a vibration damping property in a low frequency region and hardness as a raising material can be realized, such that the vehicular floor silencer is improved in practical utility.SELECTED DRAWING: Figure 2

    【課題】実用性の高い車両用フロアサイレンサを提供する。【解決手段】本発明の車両用フロアサイレンサでは、ウレタンフォーム原料のポリオールとして、所定の配合量の高分子量ポリエーテルポリオールと、低分子量ポリエーテルポリオールと、ポリマーポリオールとを採用することで、車両用フロアサイレンサの25%圧縮硬さが、40〜150Nとされ、600Hz反共振点における損失係数が、0.05以上とされる。これにより、車両用フロアサイレンサにおいて、低周波域での制振性や嵩上げ材としての硬さを実現することが可能となり、車両用フロアサイレンサの実用性が向上する。【選択図】図2


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    Title :

    VEHICULAR FLOOR SILENCER, AND MANUFACTURING METHOD OF VEHICULAR FLOOR SILENCER


    Additional title:

    車両用フロアサイレンサ、および車両用フロアサイレンサ製造方法


    Contributors:

    Publication date :

    2018-03-15


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60N SEATS SPECIALLY ADAPTED FOR VEHICLES , Sitze besonders für Fahrzeuge ausgebildet / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / B62D MOTOR VEHICLES , Motorfahrzeuge / 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 / F16F SPRINGS , Federn



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