A hood silencer includes a back skin layer, a thin film layer, a first shape-retaining layer, a sound-absorbing layer, a second shape-retaining layer, an aeration-suppressing layer, and a front skin layer. The aeration-suppressing layer suppresses oozing of a binder resin out of the surface of the front skin layer from the second shape-retaining layer during the heat forming of the second shape-retaining layer.
Exterior silencer for motor vehicle
2021-01-12
Patent
Electronic Resource
English
IPC: | 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 / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / B62D MOTOR VEHICLES , Motorfahrzeuge / G10K Tonerzeugungsvorrichtungen , SOUND-PRODUCING DEVICES |
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