ACOUSTIC PROTECTION COMPLEX COMPRISING A COMPREGNATED POROUS LAYER

The complex (1) has a flexible porous absorption layer (2), a sealing film (3), and a flexible elastic layer (4) that are arranged on each other to form a mass/spring type insulation system having absorption properties. The porous absorption layer has a porous matrix (5) with in which solid material...

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Bibliographic Details
Main Author Lemaire, Dominique
Format Patent
LanguageEnglish
French
German
Published 22.05.2019
Subjects
ACOUSTICS
ACOUSTICS NOT OTHERWISE PROVIDED FOR
METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL
MUSICAL INSTRUMENTS
PHYSICS
SOUND-PRODUCING DEVICES
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Summary:The complex (1) has a flexible porous absorption layer (2), a sealing film (3), and a flexible elastic layer (4) that are arranged on each other to form a mass/spring type insulation system having absorption properties. The porous absorption layer has a porous matrix (5) with in which solid material particles (6) made of ethylene-propylene-diene-monomer are dispersed, where the density of the particles is higher than the density of the porous matrix. The porous layer forms a resistance to passage of air, and the matrix is made of agglomerated flexible foam flakes.
Bibliography:Application Number: EP20080291001