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Patents

Water Absorbent Storage Layers:

U.S. Patent No. 9,585,798

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By: Karen McIntyre

Editor, Nonwovens Industry

Christophe Bauduin, Plankstadt, Germany.
Assigned to BASF SE, Ludwigshafen, Germany.

Filed: 6/29/15
Issued: 3/7/17

A water-absorbing storage layer consisting of a nonwoven backsheet, water-absorbing polymer particles, a liquid-pervious matrix, an adhesive, and a liquid-pervious topsheet, wherein liquid-pervious matrix is arranged in strips or geometric patterns between the liquid-pervious topsheet and the nonwoven backsheet and the water-absorbing polymer particles are present in chambers formed by the liquid-pervious matrix, wherein the water-absorbing polymer particles are fixed on the nonwoven backsheet; and wherein the liquid-pervious matrix is selected from the group consisting of a hydrophilic fiber, cellulose, and a sponge.

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