Resources Contact Us Home
Duct board with water repellant mat

Image Number 8 for United States Patent #7223455.

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.

  Recently Added Patents
Method and apparatus for supporting delivery, sale and billing of perishable and time-sensitive goods such as newspapers, periodicals and direct marketing and promotional materials
Method for correcting integrating cavity effect for calibration and/or characterization targets
Integrated circuit packaging system with interconnects and method of manufacture thereof
Battery structures and related methods
Group of amino substituted benzoyl derivatives and their preparation and their use
Communication apparatus, integrated circuit, and communication method
Method and apparatus for reducing cost of optical amplification in a network
  Randomly Featured Patents
Image processing apparatus
Flat synthetic fiber, method for preparing the same and non-woven fabric prepared using the same
Liquid crystal display device having a plurality of first and second scanning lines and a plurality of first and second video lines
Antioxidant cardioprotective use of, and method of treatment using, hydroxycarbazole compounds
Dyeing of keratin fibres with indolines using metal salts as catalysts
Nak throttling for USB host controllers
Multi-bit STRAM memory cells
Transmission detection for vertical cavity surface emitting laser power monitor and system
Gas discharge laser with magnetic bearings and magnetic reluctance centering for fan drive assembly
Personal lifting and suspension system