Dual-zoned absorbent webs

Patent 6911573 Issued on June 28, 2005. Estimated Expiration Date:

January 8, 2022. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

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Inventors

Assignee

Kimberly-Clark Worldwide, Inc.

Application

No. 10042786 filed on 01/08/2002

US Classes:

604/378, Containing layers having differing absorption characteristics (e.g., flow control, wicking, etc.)604/385.101, With means to direct body fluid604/385.01, Having specific design, shape, or structural feature156/209, Surface deformation only (e.g., embossing)156/245, In configured mold428/131, Including aperture162/109, Non-uniform, irregular or configured web or sheet162/116, By configured forming mold428/137Composite web or sheet

Examiners

Primary: Calvert, John J.
Assistant: Stephens, Jacqueline F

Attorney, Agent or Firm

Foreign Patent References

0 353 972 EP 01/01/1994
0 677 612 EP 09/01/2000
3-185 197 JP 08/01/1991
WO 95/13773 WO 05/01/1995
WO 95/13774 WO 05/01/1995
WO 97/18784 WO 05/01/1997
WO 97/48854 WO 12/01/1997

International Class

A61F013/15

Abstract

The present invention is a method for producing an absorbent article. A wet resillient, cellulosic basesheet having elevated and depressed regions with an Overall Surface Depth of at least 0.2 mm is prepared. The cellulosic basesheet has an upper surface and a lower surface. A contiguous, fibrous nonwoven web having a plurality of openings is integrally attached onto the upper surface of the cellulosic basesheet such that a portion of the openings are superposed over the depressed regions of the cellulosic basesheet. An absorbent core and an impervious web are attached to the lower surface of the cellulosic basesheet such that the absorbent core is sandwiched between the impervious web and the cellulosic basesheet.

Other References

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