US5043206A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Absorption body intended for disposable articles such as diapers, sanitary napkins and the like
Assignee: Essity Hygiene and Health AB
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Filing: 1986-07-16
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Granted: 1991-08-27
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Expires: 2006-07-16
Abstract
Abstract An absorption body intended for disposable articles such as diapers, sanitary napkins or the like and comprising highly absorbent material. A distinguishing feature of an absorption body made in accordance with the invention is that there is included therein a first layer intended to be placed against the wearer's body and which is soft, with a bulk exceeding 10 cm 3 /g, preferably more than 13 cm 3 /g, and at least one second layer which is heavily compressed to a bulk of less than 10 cm 3 /g; and that the highly absorbent material is applied in the heavily compressed layer or layers.
Inventors
- 👤 Ingela Ternstrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:54
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/53; A61F13/534; A61F2013/530481; A61F2013/53051; A61F2013/53445; A61F13/537; A61F13/53708; A61F2013/53721; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10T; Y10T428/00; Y10T428/24; Y10T428/24942; Y10T428/24992; Y10T428/25; Y10T428/253; Y10T428/29; Y10T428/2982; Y10T442/00; Y10T442/50; Y10T442/57
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
148 words
An absorption body for disposable articles such as diapers, sanitary napkins and the like, comprising a first layer of cellulose fluff pulp which is adapted to be placed against the wearer's body and which is soft and has a bulk density exceeding 10 cm 3 /g and which thereby has a poor liquid-distributing capacity, at least one air-laid second layer of cellulose fluff pulp which is substantially more heavily compressed than said first layer and has a bulk density of less than 10 cm 3 /g and which thereby has a substantially higher liquid-distributing capacity than said first layer, and a highly absorbent powdered material distributed within said at least one second layer during the air-laying of said at least one second layer, said powdered material being fixed in position in said at least one second layer only by the compression of said at least one second layer.
Claim 2
Dependent Claim
148 words
An absorption body for disposable articles such as diapers, sanitary napkins and the like, comprising a first layer of cellulose fluff pulp which is adapted to be placed against the wearer's body and which is soft and has a bulk density exceeding 10 cm 3 /g and which thereby has a poor liquid-distributing capacity, at least one air-laid second layer of cellulose fluff pulp which is substantially more heavily compressed than said first layer and has a bulk density of less than 10 cm 3 /g and which thereby has a substantially higher liquid-distributing capacity than said first layer, and a highly absorbent powdered material distributed within said at least one second layer during the air-laying of said at least one second layer, said powdered material being fixed in position in said at least one second layer only by the compression of said at least one second layer.
Claim 3
Dependent Claim
21 words
An absorption body as claimed in claim 1, in which said bulk of said first layer exceeds 13 cm 3 /g.
Claim 4
Dependent Claim
27 words
An absorption body as claimed in claim 1, in which the bulk of said at least one second layer is between 4 and 8 cm 3 /g.
Claim 5
Dependent Claim
16 words
An absorption body as claimed in claim 1, said first and second layers being bonded together.
Claim 6
Dependent Claim
31 words
An absorption body as claimed in claim 1, in which said at least one second layer is an elongated strip of substantially less width than and centered on said first layer.
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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) | 1994-08-26 | 1995-02-25 | 1995-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-08-26 | 1999-02-25 | 1999-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-08-26 | 2003-02-25 | 2003-08-27 | $7700.00 | Window Closed / Lapsed |