Acoustical insulation laminate with polyolefin layer and process for making
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United States of America Patent
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N/A
Issued Date -
Feb 5, 2004
app pub date -
Sep 9, 2002
filing date -
Aug 2, 2002
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
An acoustical insulation laminate having a porous polyolefin layer and a process for making the laminate. The laminate preferably includes a porous multiple density polyolefin film, a sound absorbing material and may include a face cloth on one or both sides of the laminate. The porous polyolefin film is preferably disposed between a sound source and the sound absorbing material improving the total noise reduction coefficient of the sound absorbing material alone while reducing the weight of laminates having similar noise reduction capabilities.
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Family
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Cited Art Landscape
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