soundproofing, quader /cube -shaped body made of interleaved plates of surface, degraded and thermally crushed polyester fibre film and a filling made of polyester fibre wool, expandable and combinable

摘要

Main claim: soundabsorbing product in the form of a cube or square,marked by it,that the surfaces of the cube or square have been destroyed,thermally crushed polyester fibre sheets,which are interconnected,so that a power -coherent compound is formed,which does not require any or only a small number of fasteners or adhesives,the product can therefore be shipped to the customer in a compact form and only then assembled and assembled,so that these acoustic absorbers with low tool and equipment costs also subsequently improve the room acoustics.