Architectural flooring underlayment
AssigneesZephyros, Inc., Pak-Lite, Inc.
InventorsVarun Mohan, Christophe Chaut, Kendall Bush, Greg Thompson, William Desmond Boring
Life of this patent
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Abstract
A fibrous structure having one or more vertically lapped layers having a first surface and a second surface and a facing layer secured to the first surface of the vertically lapped layer. The fibrous structure is adapted to be used in a flooring assembly. The fibrous structure may include a mesh and/or a backing layer on the second surface of a vertically lapped layer. The fibrous structure exhibits improved performance in below room testing and/or in-room testing as compared with traditional materials of the same thickness.
Claims20
A fibrous structure comprising:
- a. a vertically lapped layer having a first surface and a second surface, wherein the vertically lapped layer has a weight of about 110 gsm to about 175 gsm;
- b. a facing layer secured to the first surface of the vertically lapped layer, wherein the facing layer includes one or more of a spunbond (S) material, a spunbond and meltblown (SM) material spunbond+meltblown+spunbond (SMS) nonwoven material;
- c. a backing layer secured directly or indirectly to the second surface of the vertically lapped layer, wherein the backing layer comprises a spunbond PET material having a weight of about 8 gsm to about 22 gsm;
- wherein the fibrous structure has a thickness of about 5 mm or less;
- and
- wherein the fibrous structure is a flooring subassembly adapted to be used in a flooring assembly.
A fibrous structure comprising:
- a. a vertically lapped layer having a first surface and a second surface, wherein the vertically lapped layer comprises PET fibers and has a weight of about 110 gsm to about 175 gsm;
- b. a facing layer secured to the first surface of the vertically lapped layer, wherein the facing layer is formed of a polypropylene SMS material and has a weight of about 50 gsm to about 60 gsm;
- c. a backing layer comprising a spunbond PET material having a weight of about 10 gsm to about 20 gsm;
- and
- d. a scrim or a mesh sandwiched between the second surface of the vertically lapped layer and the backing layer, wherein the scrim or mesh has a weight of about 20 gsm to about 30 gsm;
- wherein one or more of the layers includes an adhesive secured thereto for binding to an adjacent layer;
- and
- wherein the fibrous structure is a flooring subassembly adapted to be used in a flooring assembly.
Dependencies are inferred from the claim text.