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
Light barrier and method for detecting objects
Scaleable status tracking of multiple assist hardware threads
Rotation angle sensor
Stereoscopic display
Toner for developing electrostatic charge image, electrostatic charge image developer, toner cartridge, process cartridge, image forming method, and image forming apparatus
Factor IXa crystals, related complexes and methods
Systems and methods for printing images outside a normal color gamut in image forming devices
  Randomly Featured Patents
Tractor quarter fender
Method and means for improved gas adsorption
Current monitoring circuit for secondary battery
Power dividing stepless speed change transmission system
Magnetic devices, apparatus for use in connection with dry transfer sheets incorporating such devices and sheets for use therein
Electronic vibrato or celeste
Cigarette lighter plug that can be inserted into sockets of different dimensions
Apparatus for doffing bobbins from roving frames and replacing the doffed bobbins with empty tubes
Detachable apparatus for securing a transmitting device for use with a hunting arrow for tracking game
Alkyl allyl amines and low voc hair styling compositions using same