A sound insulating trim part with acoustic mass-spring characteristics comprising a mass layer (A) and a decoupling layer (B) (3) , characterised in that the mass layer (A) consists of a porous fibrous layer (1) with a dynamic Young's modulus (Pa) of at least (96¢AW¢t) with AW area weight (g/m 2 ), and t thickness (mm) of the fibrous layer (1), and an air impermeable thin barrier layer (2) between the fibrous layer (1) and the decoupling layer (3).
Automotive insulating trim part
Isolierendes Autoverkleidungsteil
Pièce de garniture isolante d'automobile
2025-01-22
Patent
Electronic Resource
English
European Patent Office | 2023
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