Document Type

Patent

Publication Date

7-15-1997

Patent Number

patent number 5648142

Abstract

A polymeric film for use in absorbent structures comprises a planar surface having a frontside, a backside and a plurality of apertures. Walls extend from the perimeter of the apertures and outwardly from the backside. The walls and the backside form a capillary system on the backside. The walls form channels which connect the frontside of the film to the capillary system on the backside. The walls have at least one cut out portion extending the length of the walls. A fluid contacting the frontside of the film will spontaneously invert to the capillary system on the backside of the film through the cut out portions of the walls.

Application Number

08/545450

Assignees

Eastman Chemical Company (Kingsport, TN)

Filing Date

1995-10-19

Primary/U.S. Class

428/132

Other/U.S. Class

428/131, 428/134, 428/137, 428/195.1, 428/913, 604/378, 604/383

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