Acoustic attenuators based on porous nanostructured materials
AssigneesBoard of Regents, The University of Texas System, Rensselaer Polytechnic Institute, The Curators of the University of Missouri
InventorsHongbing Lu, Ning Xiang, Nicholas Leventis, Chariklia Sotiriou-Leventis
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Abstract
The invention is directed to a porous, acoustic attenuating composition, wherein the composition comprises a nanostructured material and wherein the composition exhibits acoustic transmission loss ranging from 20 to 60 dB/cm thickness of the composition.
Claims17
An acoustic attenuating composition, wherein the composition comprises primary particles and secondary particles, wherein said secondary particles are composed of the primary particles and the secondary particles are embedded in a network of nanofibers and the composition contains pores ranging in size from less than 10 nm to more than one micron in diameter and further wherein the composition exhibits acoustic transmission loss ranging from 20 to 60 dB/cm thickness of the composition.
A sound absorbing member comprising a composition wherein the composition comprises primary particles and secondary particles, wherein said secondary particles are composed of the primary particles and the secondary particles are embedded in a network of nanofibers and the composition contains pores ranging in size from less than 10 nm to more than one micron in diameter and further wherein the composition exhibits acoustic transmission loss ranging from 20 to 60 dB/cm thickness of the composition.
Dependencies are inferred from the claim text.