Laminated acoustic soundproofing panel
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United States of America Patent
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Jan 14, 2014
Grant Date -
Mar 29, 2012
app pub date -
Mar 10, 2010
filing date -
Mar 10, 2009
priority date (Note) -
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status (Latency Note)
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Abstract
A laminated acoustic building panel comprises a pair of plasterboard substrates which are bonded together by an adhesive layer, the panel having a dynamic Young's modulus of 0.1 to 5 GPa and a damping loss factor of 5-30% (η=0.05-0.3), and the ratio of the adhesive to the applied surface area of the substrates being 80-250 g/m2. The laminated panel is relatively soft in construction and hence sound waves caused by knocking or impact noise is surprisingly damped using considerably less adhesive than known panels. The use of soft substrates and less adhesive significantly reduces the weight of the panel. Furthermore, the use of less adhesive significantly reduces costs and makes production easier.
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