The purpose of the present invention is to provide: a composition for polyurethane foam production which gives polyurethane foam having a low density and excellent sound-absorbing properties; polyurethane foam obtained from the composition; and a sound-absorbing member. The composition for polyurethane foam production of the present invention is characterized by comprising a polyol, a polyisocyanate, a catalyst, a blowing agent, a foam stabilizer, and an auxiliary blowing agent, the blowing agent being water, the amount of which is 4-11 parts by mass per 100 parts by mass of the polyol, and the auxiliary blowing agent being a liquid halogenated olefin, the amount of which is 10-30 parts by mass per 100 parts by mass of the polyol.


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    Titel :

    COMPOSITION FOR POLYURETHANE FOAM PRODUCTION, POLYURETHANE FOAM, AND SOUND-ABSORBING MEMBER


    Weitere Titelangaben:

    ZUSAMMENSETZUNG ZUR POLYURETHANSCHAUMHERSTELLUNG, POLYURETHANSCHAUM UND SCHALLDÄMPFUNGSGLIED
    COMPOSITION POUR LA PRODUCTION DE MOUSSE DE POLYURÉTHANE, MOUSSE DE POLYURÉTHANE ET ÉLÉMENT D'ABSORPTION SONORE


    Beteiligte:
    KANZAKI SHINYA (Autor:in)

    Erscheinungsdatum :

    2021-03-10


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    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 / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR



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