Duct board with water repellant mat
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United States of America Patent
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-
May 29, 2007
Grant Date -
Jul 15, 2004
app pub date -
Jan 14, 2003
filing date -
Jan 14, 2003
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A duct board or duct liner comprises: an insulating layer formed from fibrous material bound with a resin binder, an outer facing layer adhered to an outer surface of the insulating layer, and a water repellant mat facing adhered to an interior surface of the insulating layer opposite the outer surface to form a duct board material. The mat facing provides sufficient water repellency to repel a mixture of about 40% isopropanol and about 60% water. The duct board or duct liner material may be formed into a tubular shape capable of conducting air, with the mat facing on the interior of the tubular shape.
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