Acoustically tunable sound absorption articles and methods of making same
US8607929B2 · kind B2 · utility
13Cited by
34References
55Claims
0Family size
Assignee
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Key dates
| Filing date | Mar 8, 2013 |
| Grant date | Dec 17, 2013 |
| Priority date | — |
| Expiry date | Mar 8, 2033 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04B2001/745
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A moldable acoustic facing comprises cellulosic fibers and synthetic fibers entangled together. The acoustic facing has a basis weight of from about 1.5 to about 5.0 ounces per square yard (osy), a thickness of less than about 0.050″, a mean pore size of between about 8 microns and about 40 microns, and an elongation at break of at least twenty percent. The acoustic facing includes less than about five percent synthetic microfiber and has an acoustic resistance of at least about 250 Rayls.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.