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1. (WO2018203140) ACOUSTIC MATERIAL

Pub. No.:    WO/2018/203140    International Application No.:    PCT/IB2018/000611
Publication Date: Fri Nov 09 00:59:59 CET 2018 International Filing Date: Wed May 02 01:59:59 CEST 2018
IPC: B32B 5/02
B32B 5/24
B32B 5/26
B32B 7/14
B32B 27/06
B32B 27/12
B32B 27/20
B32B 27/32
B32B 27/36
B32B 27/40
B32B 3/30
Applicants: THRACE NONWOVENS & GEOSYNTHETICS S.A.
Inventors: LAKE, Andreas
Title: ACOUSTIC MATERIAL
Abstract:
An acoustic material for sound absorption and dampening includes a scrim layer and a spacer layer. In example forms, the scrim layer includes a micro porous film material and the spacer layer includes a foam material, with the scrim layer being adhered to the spacer layer by laminating the two together. Optionally, the scrim layer includes a melt blown polypropylene or polyethylene. In example embodiments, the melt blown polypropylene or polyethylene can be in the form of a film material or can be directly sprayed on to the spacer layer. Optionally, the scrim layer can further include one or more spun bond layers. In some example embodiments, the spacer layer can be formed from a nonwoven material.