Pitch modulating laminate with an apertured acoustic layer
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United States of America Patent
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Issued Date -
Sep 28, 2006
app pub date -
Mar 28, 2005
filing date -
Mar 28, 2005
priority date (Note) -
Abandoned
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Abstract
A laminate comprises a core layer and one or more acoustic layers adhered to the core layer. The core layer is at least about 30 mils thick and comprises one or more materials selected from wood and wood composite. The total thickness of the one or more acoustic layers is greater than about 5 mils. The one or more acoustic layers define a plurality of apertures, and either have a glass transition temperature of at most about 0.degree. C. along with a crystallinity of at most about 39 weight %, or comprise at least about 40 weight % elastic polymer, or both. The laminate may be useful in flooring systems.
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