Glass fiber enhanced mineral wool based acoustical tile
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United States of America Patent
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May 27, 2014
Grant Date -
N/A
app pub date -
Jul 5, 2013
filing date -
Jul 5, 2013
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A wet laid basemat for an acoustical ceiling tile comprising on a dry weight basis, 50% or more mineral wool fiber, including shot, less than 9% binder, and between 5 and 20% chopped strand glass fiber, and, optionally, minor amounts of other constituents, whereby the chopped strand glass fibers serve to promote and/or maintain voids in the mat such that the dry basemat has a density of between about 7½ to about 10½ lbs. per cubic foot and an NRC substantially greater than 0.55.
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Family
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Cited Art Landscape
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