A urethane bumper spring is produced from a urethane raw material containing a polyester-based polyol as a polyol component and diphenylmethane diisocyanate as an isocyanate component, and includes: a skin layer; and a core portion, in which the skin layer has a density (Da) and a foamed cell diameter (Ra), and the core portion has a density (Db) and a foamed cell diameter (Rb). The density (Da), the foamed cell diameter (Ra), the density (Db), and the foamed cell diameter (Rb) satisfy relationships shown in the following expressions: 1.0≦Da/Db<1.34 (1) and 0.53


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    Titel :

    URETHANE BUMPER SPRING, AND METHOD FOR PRODUCING SAME


    Beteiligte:
    SUZUKI YASUO (Autor:in) / HASEGAWA TAKUYA (Autor:in) / NAKAMURA YORIKAZU (Autor:in) / MIZUSAKI MASANOBU (Autor:in)

    Erscheinungsdatum :

    2016-12-01


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    B60G VEHICLE SUSPENSION ARRANGEMENTS , Radaufhängungen und Federungen für Fahrzeuge / B29C Formen oder Verbinden von Kunststoffen , SHAPING OR JOINING OF PLASTICS



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