Carpet padding comprising cover film, and prime and rebond foam layers
AssigneePMC, Inc.
InventorJoseph A. Campagna
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Abstract
An improved carpet padding comprises a layer of rebonded flexible polyurethane foam, a relatively thin intermediate layer of flexible prime polyurethane foam, and a top layer of polymer film. The layers are laminated together by either a flame or liquid adhesive method. In a preferred embodiment, the bottom layer of rebonded foam is from two to eight times as thick as the intermediate layer of prime foam, and the top layer of polymer film is a metallized polyester embossed with a uniform pattern.
Claims30
An improved laminated article adapted for use as carpet padding comprising a bottom layer of rebonded flexible polyurethane foam, an intermediate layer of flexible prime polyurethane foam and a top layer of polymer film.
In the method of manufacturing a laminated carpet padding which comprises a top layer of polymer film and a bottom layer of rebonded flexible polyurethane foam, the improvement which comprises
- (a) laminating to the upper surface of a bottom layer of rebonded flexible polyurethane foam an intermediate layer of flexible prime polyurethane foam, and
- (b) laminating to the upper surface of the intermediate layer of prime polyurethane foam a polymer film layer to form the top layer of the carpet padding.
Dependencies are inferred from the claim text.