Patent ID: 7166547

Claim:
An under carpet heat shield/floor pan insulator for a vehicle, comprising: a nonlaminate multidensity acoustical and thermal insulating layer of polyester fiber, having a nonlaminate skin of polyester fiber along at least one face of said acoustical and thermal insulating layer, said nonlaminate skin having a higher density than a remaining portion of said insulating layer; a first metal foil facing layer over a first face of said acoustical and thermal insulating layer; a second metal foil facing layer over a second face of said acoustical and thermal insulating layer; an additional acoustical and thermal insulating layer of polymer fiber selected from a group consisting of polyester, polypropylene, polyethylene, rayon, nylon and any mixtures thereof over said first metal foil facing layer wherein said first metal foil facing layer is sandwiched between said additional acoustical and thermal insulating layer and said acoustical and thermal insulating layer; and wherein at least one layer of said nonlaminate multidensity acoustical and thermal insulating layer and said additional acoustical and thermal insulating layer includes between about 10 weight percent and about 60 weight percent additional fibers selected from a group consisting of glass fibers and natural fibers.