Patent ID: 9366366
Filing Date: 2016-06-14
CPC Classification: B32B,F16L,F24F,Y10T

Claim Text:
1. A method of recycling a flexible HVAC duct comprising a duct liner, a layer of insulation surrounding the duct liner, and a vapor barrier surrounding the layer of insulation, the layer of insulation being a fiberglass batt insulation, wherein the flexible HVAC duct further comprises: a) the duct liner further comprising a first polymer layer, a second polymer support structure, and means for connecting the first polymer layer and the second polymer support structure together so as to form a generally cylindrical configuration; and b) the vapor barrier further comprising a third polymer layer, a fourth polymer reinforcing layer, and means for connecting the third polymer layer and the fourth polymer reinforcing layer together; c) wherein the polymers used in the duct liner and the polymers used in the vapor barrier are selected from the group consisting of polypropylene, polyethylene, polyester, polyvinyl chloride, and a chlorinated polyethylene; the method comprising: i) removing the duct from a structure; and ii) separating the duct liner and vapor barrier from the fiberglass batt insulation to form a recyclable load as the vapor barrier and the duct liner.