| 摘要 |
<p>An improved structure of composite soundproofing material (1) comprises at least one container body (10) having at least one recess (15) in which, in use, a filling material (50) is arranged. The filling material (50) comprises a predetermined amount of barite in granules having a predetermined size. This way, a composite material is obtained having a high mass for the high density, or specific mass, of the barite. Therefore, under a same available volume, the composite material according to the invention can ensure a most effective sound insulation with respect to the prior art solutions [Fig. 8].</p> |
