US4392862A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Absorptive device
Assignee: Procter and Gamble Co
•
Filing: 1981-03-02
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Granted: 1983-07-12
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Expires: 2001-03-02
Abstract
Abstract Absorptive devices comprising a facing element, a support element, an absorbent core, and a backsheet. The facing element is a body fluid permeable, unbonded, carded web of resilient, hydrophobic fibers which has been affixed to the supporting element through the means of spaced apart regions of bonding. The supporting element is a body fluid permeable planer sheet compatible with and affixed to the facing element. The absorbent core must absorb and retain body fluids while the backsheet must be impermeable to such fluids. The four elements are superimposed one upon another in the order mentioned and are united in that position to form devices such as disposable diapers, sanitary napkins, incontinent pads and the like.
Inventors
- 👤 Mario S. Marsan
- 👤 Edward W. Hartwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:22
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/45; A61F13/49; A61F13/49007; A61F13/51; A61F13/511; A61F13/51121; A61F13/513; A61F13/51305; A61F13/53; A61F13/539; A61F2013/51002; A61F2013/51038; A61F2013/51042; A61F13/514; A61F13/51401; A61F2013/51409; A61F2013/530131; A61F2013/53908; A61F2013/5395
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
118 words
An absorptive device comprising a facing element, a fluid permeable support element, an absorbent pad, and an impervious backsheet wherein said facing element comprises a fluid permeable, unbonded web of hydrophobic thermoplastic fibers, said fibers being from about 3 to about 15 denier; said web being formed without the use of bonding agents and having a density of from about 0.0002 to about 0.02 g/cc.; wherein said facing element is affixed to said support element in spaced apart regions of bonding by means selected from the group consisting of thermal bonding, hot melt adhesive bonding, and chemical adhesive bonding to form an assembly and said assembly is superimposed on said absorbent pad which is superimposed on said backsheet.
Claim 2
Dependent Claim
118 words
An absorptive device comprising a facing element, a fluid permeable support element, an absorbent pad, and an impervious backsheet wherein said facing element comprises a fluid permeable, unbonded web of hydrophobic thermoplastic fibers, said fibers being from about 3 to about 15 denier; said web being formed without the use of bonding agents and having a density of from about 0.0002 to about 0.02 g/cc.; wherein said facing element is affixed to said support element in spaced apart regions of bonding by means selected from the group consisting of thermal bonding, hot melt adhesive bonding, and chemical adhesive bonding to form an assembly and said assembly is superimposed on said absorbent pad which is superimposed on said backsheet.
Claim 3
Dependent Claim
12 words
The absorptive devise of claim 1 wherein said fibers are polyester fibers.
Claim 4
Dependent Claim
21 words
The absorptive device of claim 1 or 2 wherein said facing element is affixed to said support element by thermal bonding.
Claim 5
Dependent Claim
118 words
A disposable diaper comprising a facing element, a fluid permeable support element, an absorbent pad, and an impervious backsheet wherein said facing element comprises a fluid permeable, unbonded web of hydrophobic thermoplastic fibers, said fibers being from about 3 to about 15 denier; said web being formed without the use of bonding agents and having a density of from about 0.0002 to about 0.02 g/cc.; wherein said facing element is affixed to said support element in spaced apart regions of bonding by means selected from the group consisting of thermal bonding, hot melt adhesive bonding, and chemical adhesive bonding to form an assembly and said assembly is superimposed on said absorbent pad which is superimposed on said backsheet.
Claim 6
Dependent Claim
118 words
A disposable diaper comprising a facing element, a fluid permeable support element, an absorbent pad, and an impervious backsheet wherein said facing element comprises a fluid permeable, unbonded web of hydrophobic thermoplastic fibers, said fibers being from about 3 to about 15 denier; said web being formed without the use of bonding agents and having a density of from about 0.0002 to about 0.02 g/cc.; wherein said facing element is affixed to said support element in spaced apart regions of bonding by means selected from the group consisting of thermal bonding, hot melt adhesive bonding, and chemical adhesive bonding to form an assembly and said assembly is superimposed on said absorbent pad which is superimposed on said backsheet.
Claim 7
Dependent Claim
12 words
The disposable diaper of claim 4 wherein said fibers are polyester fibers.
Claim 8
Dependent Claim
21 words
The disposable diaper of claim 4 or 5 wherein said facing element is affixed to said support element by thermal bonding.
Claim 9
Dependent Claim
19 words
The disposable diaper of claim 4 or 5 wherein said support element comprises a nonwoven fabric of polyester fibers.
Claim 10
Dependent Claim
19 words
The disposable diaper of claim 7 wherein said facing element is affixed to said support element by thermal bonding.
Claim 11
Dependent Claim
16 words
The disposable diaper of claim 4 or 5 wherein said support element comprises a monofilament scrim.
Claim 12
Dependent Claim
19 words
The disposable diaper of claim 9 wherein said facing element is affixed to said support element by thermal bonding.
Claim 13
Dependent Claim
15 words
The disposable diaper of claim 9 wherein said monofilament scrim is coated with thermoplastic polymer.
Claim 14
Dependent Claim
15 words
The disposable diaper of claim 10 wherein said monofilament scrim is coated with thermoplastic polymer.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-07-11 | 1987-01-10 | 1987-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-07-11 | 1991-01-10 | 1991-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-07-11 | 1995-01-10 | 1995-07-12 | $7700.00 | Window Closed / Lapsed |