Multiple layer absorbent cores for absorbent articles
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United States of America Patent
Stats
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Jul 28, 1992
Issued Date -
N/A
app pub date -
May 1, 1991
filing date -
May 24, 1988
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Absorbent articles such as disposable diapers, incontinent pads, sanitary napkins and the like that have multiple layer absorbent cores that are suitable for acquiring and containing liquids in an especially effective and efficient manner. The absorbent core comprises multiple layers including a first layer comprising hydrophilic fibrous material and having an acquisition zone of a relatively lower average density than the other portions of the first layer so that it quickly acquires discharged liquids; a liquid handling layer comprising a resilient material that is moisture insensitive so as to rapidly acquire liquid into itself through the acquisition zone and distribute the liquid throughout the liquid handling layer to a storage layer and the first layer; and a storage layer comprising a combination of fibrous material and discrete particles of absorbent gelling material that contains and stores the liquids deposited onto the absorbent core and allows the liquid handling layer to be 'drained' of the liquids it has acquired so that the liquid handling layer may have sufficient capacity to acquire and distribute subsequent loadings of liquids.
First Claim
Family
- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
| Patent Owner | Address | |
|---|---|---|
| THE PROCTER & GAMBLE COMPANY | CINCINNATI OH 45202 |
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Inventor(s)
| Inventor Name | Address | # of filed Patents | Total Citations |
|---|---|---|---|
| Bergman, Bruce H | Mason, OH | 2 | 659 |
| Clear, Sandra H | Deerfield Township, Warren County, OH | 19 | 5103 |
| Gomez-Santiago, Rolando | Cincinnati, OH | 2 | 659 |
| Guinn, Susan E | Colerain Township, Hamilton County, OH | 2 | 659 |
| Reising, George S | Batavia, OH | 10 | 1541 |
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| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|
| Fee | Large entity fee | small entity fee | micro entity fee |
|---|---|---|---|
| Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
| Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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