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US 2010/0071797 A1Published application
Fire retardant air handling system ductwork component and method of manufacture
OwnerJon W. Jungersinventor
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Abstract
A rigid ductwork component for a residential, commercial, or industrial air handling system that is comprised of a rigid, tubular, fire retardant layer including a foamed or non-foamed polymer resin and a fire retardant compound. In some embodiments, the ductwork component satisfies the requirements of UL E-84 rating, and the fire retardant compound includes nanoparticles.
Claims1
A rigid ductwork component for a residential, commercial, or industrial air handling system, the ductwork component comprising a rigid tubular, fire retardant layer including a foamed or non-foamed polymer resin and a fire retardant compound.
Dependencies are inferred from the claim text.