公开(公告)号：US11987038B2

公开(公告)日：2024-05-21

申请号：US17271623

申请日：2019-08-20

申请人： ArianeGroup SAS

发明人： Bernard Troclet ,  Pierre Godart

IPC分类号： B32B3/26 ,  B32B5/02 ,  B32B5/18 ,  B32B5/24 ,  B32B7/12 ,  B60R13/08 ,  B61D17/00 ,  B64C1/40 ,  G10K11/168

CPC分类号： B32B5/245 ,  B32B3/266 ,  B32B5/024 ,  B32B5/18 ,  B32B7/12 ,  G10K11/168 ,  B32B2262/0276 ,  B32B2262/062 ,  B32B2262/148 ,  B32B2266/0285 ,  B32B2307/102 ,  B32B2307/72 ,  B32B2307/7242 ,  B32B2419/00 ,  B32B2605/08 ,  B32B2605/10 ,  B32B2605/18 ,  B60R13/08 ,  B61D17/005 ,  B64C1/40

摘要： An acoustic attenuation panel including: a main layer made of a porous material and having two opposite faces; a coating layer arranged on one of the two faces of the main layer; an adhesive film, arranged at the interface between the main layer and the coating layer to assemble same. The main layer is a body made of melamine resin foam having a density between 6 and 6.8 kg/m3 and a porosity rate between 0.978 and 0.984; the coating layer is a fabric with a density between 484 and 526 kg/m3 and a porosity rate between 0.771 and 0.817; the adhesive film is a film made of a thermoplastic material provided with holes passing through and having a surface density between 40 g/m2 and 56 g/m2.