发明授权
US08403108B2 Acoustically tunable sound absorption articles and methods of making same 有权
声音可调吸声制品及其制作方法

Acoustically tunable sound absorption articles and methods of making same
摘要:
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.
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