초록 ▼

A temporary floor covering 10 that allows air and moisture to pass through the covering 10 is disclosed. The floor covering 10 has a first layer 12, a second layer 14 connected to the first layer 12, and a plurality of perforations 18 in the covering 10. The first layer 12 is typically made of a low

A temporary floor covering 10 that allows air and moisture to pass through the covering 10 is disclosed. The floor covering 10 has a first layer 12, a second layer 14 connected to the first layer 12, and a plurality of perforations 18 in the covering 10. The first layer 12 is typically made of a low-density polyethylene foam, and the second layer 14 is typically made of a polyethylene film. The perforations 18 extend through the first and second layers 12, 14 to allow air and moisture to pass through both the first layer 12 and the second layer 14. Additionally, an outer surface of one of the first layer 12 or the second layer 14 may have an increased coefficient of friction.

대표청구항 ▼

What is claimed is: 1. A floor covering comprising: a first layer having a first surface and a second surface, the first layer being made of a polymeric foam material comprising a low-density polyethylene foam; a second layer having a first surface and a second surface, wherein the second layer com

What is claimed is: 1. A floor covering comprising: a first layer having a first surface and a second surface, the first layer being made of a polymeric foam material comprising a low-density polyethylene foam; a second layer having a first surface and a second surface, wherein the second layer comprises a film having low-density rich properties at the second surface of the second layer, and high-density rich properties at the first surface of the second layer, the second layer being connected to the first layer; and, a plurality of perforations extending through at least a portion of the first layer, from the first surface of the first layer to the second surface of the first layer, and a portion of the second layer, from the first surface of the second layer to the second surface of the second layer, to allow air and moisture to pass through both the first layer and the second layer, wherein each of the perforations comprises a narrow, elongated slit in the floor covering having sufficient engagement between opposed edges of the perforation to prevent particulates from passing through the floor covering. 2. The floor covering of claim 1, wherein the second layer comprises a polymer film. 3. The floor covering of claim 1, wherein the first layer and the second layer are comprised of polyethylene. 4. The floor covering of claim 1, wherein the second layer comprises a high-density polyethylene film. 5. The floor covering of claim 1, further comprising a third layer in contact with the first layer, wherein the second layer contacts the first surface of the first layer, and wherein the third layer contacts the second surface of the first layer. 6. The floor covering of claim 5, wherein a plurality of the perforations extends through the first layer, the second layer, and the third layer. 7. The floor covering of claim 5, wherein the first layer comprises a low density polymer foam, wherein the second layer comprises a high density polymer film, and wherein the third layer comprises a high density polymer film. 8. The floor covering of claim 1, wherein the second surface of the first layer has a plurality of ribs. 9. The floor covering of claim 1, wherein the sheet material has a non-skid outer surface. 10. An insulating flooring substrate comprising: a first polymer foam layer; and, a second polymer film layer in contact with the first polymer foam layer, wherein the second layer has a first tacky surface, the first tacky surface having an increased coefficient of friction, the second layer having high density rich properties at the first surface thereof, and low density rich properties at a second, opposed surface thereof, the second surface contacting the first layer, wherein the substrate has a second tacky surface at an opposing surface of the substrate to the first tacky surface, the second tacky surface increasing the coefficient of friction of the opposing surface of the substrate, and wherein the substrate has a plurality of perforations through the substrate, the perforations extending from an outer surface of the substrate to an opposing outer surface of the substrate, the perforations allowing air and moisture to pass through the substrate. 11. A temporary floor covering comprising: a first layer made of a low density polyethylene foam; a second layer made of a polyethylene film, the second layer comprising a co-extruded film having low density rich properties at an inner surface thereof, and high density rich properties at an outer surface thereof, the inner surface contacting the first layer; and, a plurality of perforations in the covering, the perforations extending through the first and second layers to allow air and moisture to pass through both the first layer and the second layer. 12. The floor covering of claim 11, wherein the second layer is made of a high density polyethylene. 13. The floor covering of claim 11, wherein the first surface of the second layer has a substantially skid-resistant outer surface. 14. The floor covering of claim 11, wherein the second layer has a thickness, and wherein the thickness of the second layer is less than the thickness of the first layer. 15. The floor covering of claim 11, wherein the first layer has a plurality of ribs extending therefrom. 16. A temporary floor covering comprising: a first layer made of a polyethylene foam; a second layer made of a polyethylene film having low density rich properties at an inner surface thereof and high density rich properties at an outer surface thereof, the first layer being joined to the second layer at the inner surface of the second layer; and, a plurality of perforations in the covering, the perforations extending through the first and second layers to allow air and moisture to pass through the first layer and the second layer. 17. The temporary floor covering of claim 16, wherein the perforations have a generally jagged cross-sectional shape.