Noise attenuation panel

Details Noise attenuation panel Noise attenuation panel

G - Physics

10

K

G10K 11/16 (2006.01)

Patent

CA 2095919

2095919 9222053 PCTABS00018 Noise attenuation panel (10) comprises a component having a front face for exposure to sound to be attenuated and is made of or includes or comprises a reinforced frontal region which includes the front face and which is made of a porous permeable composite material formed from a thermoplastic matrix material reinforced with one or more non-thermoplastic reinforcing materials. The frontal region is preferably produced by powder sintering the composite material. The reinforcing materials may be in the form of discrete particles and comprise a powder, microspheres or microballoons or in the form of fibres which may be discontinuous or continuous filament fibres. The reinforced frontal region may be formed as a facing component part with the panel including a base component part having an array of cells. Alternatively, the component has an open-celled structure which includes the frontal region.

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