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.
Absorptive sound insulation
2024-01-04
Patent
Elektronische Ressource
Englisch
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
Europäisches Patentamt | 2016
|On the Acoustic Impedance of a Fibreless Sound Absorptive Element
SAE Technical Papers | 2015
|Sound insulation engine hood and sound insulation method
Europäisches Patentamt | 2021
|TIBKAT | 2007
|METHOD FOR PRODUCING A SOUND INSULATION WITH FLEECE INSULATION AND SOUND INSULATION
Europäisches Patentamt | 2024
|