04673402 is referenced by 553 patents and cites 13 patents.

The present invention provides absorbent articles, such as disposable diapers, which utilize substantially water-insoluble hydrogel material to enhance the absorbent capacity of such articles. In these articles, the hydrogel material, combined in particulate form with hydrophilic fiber material, is primarily placed in a lower fluid storage layer of the absorbent core of the article. Such a fluid storage lower layer of the absorbent core is placed underneath an upper, preferably larger, fluid acquisition/distribution layer containing little or no hydrogel. This lower fluid storage layer is positioned in such a manner that at least about 75% of the hydrogel in the lower layer is found in the front two-thirds of the absorbent article and such that at least about 55% of the hydrogel in the lower layer is found in the front half of the absorbent article. Absorbent articles of this type make especially effective and efficient use of the hydrogel material and may also provide a diaper rash control benefit. Absorbent cores of the type utilized in such articles are also disclosed.

Title
Absorbent articles with dual-layered cores
Application Number
734426
Publication Number
4673402
Application Date
August 11, 1986
Publication Date
June 16, 1987
Inventor
Dale A Gellert
Aurora
IN, US
Dawn I Houghton
Fairfield
OH, US
Paul T Weisman
Fairfield
OH, US
Agent
Richard C Witte
Steven J Goldstein
George W Allen
Assignee
The Procter & Gamble Company
OH, US
IPC
A61F 13/16
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