Liquid retaining carpet underlayment

Details Liquid retaining carpet underlayment Liquid retaining carpet underlayment

A - Human Necessities

47

G

A47G 27/00 (2006.01)

Patent

CA 2320471

A carpet underlayment or carpet cushion has a compressible flexible polyurethane foam base layer having formed in its upper surface a plurality of projections separated by liquid receiving channels. The channels have a depth between 1/16 and 1/4 inch (and not more than ~ inch), and the projections preferably are formed with top surfaces having regular geometric shapes and aligned in substantially parallel staggered rows. A liquid impervious casted or blown adhesive film, such as a polyethylene film, is adhered to the upper surface of the base layer without substantially deforming the projections and liquid retaining channels. When the carpet underlayment is installed under a carpet, the projections maintain separation between the carpet and the liquid retaining channels. If a liquid is spilled on the carpet, the underlayment channels retain the spilled liquid in a defined region close to the impact zone.

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