An absorption sound insulation for motor vehicle interiors and luggage compartments with absorption/stiffening nonwovens or 3D absorbers is formed of partially or completely cellulose wool, and includes a wear layer, and an absorbent/stiffening nonwoven fabric laminated thereunder formed of rayon of solid individual phases having a multi-leg cross-sectional shape with at least three legs, in which the legs of the cross-sectional profile each have a length/width ratio of at least 2:1 and the individual titre is 0.5 to 5 dtex.


    Access

    Download


    Export, share and cite



    Title :

    Absorptive sound insulation


    Contributors:

    Publication date :

    2024-01-04


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    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



    COMPOSITE SOUND ABSORPTION MATERIAL AND SOUND ABSORPTIVE INTERIOR MATERIAL

    ISHIMARU TAKU / KOSAKAI AKIRA | European Patent Office | 2016

    Free access

    Sound insulation sheet and sound insulation structure

    NAKAYAMA MASANARI / MATSUOKA TAKESHI / KOSHITOUGE HARUKI | European Patent Office | 2024

    Free access

    On the Acoustic Impedance of a Fibreless Sound Absorptive Element

    Auriemma, Fabio / Tiikoja, Heiki | SAE Technical Papers | 2015


    Sound insulation

    Hopkins, Carl | TIBKAT | 2007


    Sound insulation engine hood and sound insulation method

    ZHANG DA / SU JUNSHOU / WANG SANLONG | European Patent Office | 2021

    Free access