IP Library Granted Patent US 9,439,814
Granted Patent B2
US 9,439,814 · App. 14/112,056 · Granted Sep 13, 2016

Elastic absorbent sanitary article for absorbing bodily fluids

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Quick Facts
Patent No.
US 9,439,814
App. No.
14/112,056
Granted
Sep 13, 2016
Kind
B2
Abstract

An absorbent hygiene product for acquiring fluids, having a flexurally yielding topsheet and a flexurally yielding backsheet, has, disposed between these sheets, an absorbent laminate, which in turn has two flexurally yielding outer plies, arranged adheringly between which are at least two diagonally intersecting, pre-tensioned plies of elastic filaments, a quantity of a superabsorbent polymer being incorporated in each of the discrete sections thus formed, and the topsheet-side outer ply of the laminate consists of a hydrophobic material, and the backsheet-side outer ply of the laminate consists of a hydrophilic material.

Claims (10)

1. An absorbent hygiene product for acquiring fluids, formed at least of a flexurally yielding topsheet and a flexurally yielding backsheet, inserted adheringly between which is an absorbent laminate, consisting of two flexurally yielding outer plies, incorporated adheringly between which are at least two diagonally intersecting, pre-tensioned plies of elastic filaments, and into which discrete sections of superabsorbent polymer have been incorporated, characterized in that one of the two flexurally yielding outer plies of the laminate faces the topsheet and is a hydrophobic material which in a region of adherence with the elastic filaments and the second outer ply has been locally or sectionally made fluid-pervious mechanically, chemically or thermally.

2. The absorbent hygiene product according to claim 1 , characterized in that the topsheet-side outer ply of the laminate after 300 s fluid addition has a barrier effect of more than 2 cm for fluids.

3. The absorbent hygiene product according to claim 2 , characterized in that the topsheet-side outer ply of the laminate after 300 s fluid addition has a barrier effect of more than 5 cm for fluids.

4. The absorbent hygiene product according to claim 1 characterized in that one of the two flexurally yielding outer plies of the laminate faces the backsheet and is a hydrophilic material having good fluid transport quality.

5. The absorbent hygiene product according to claim 4 , characterized in that the backsheet-side outer ply of the laminate is a hydrophilic material having an areal distribution of more than 10 cm 2 wetted area by a fluid quantity of 1 ml applied pointwise.

6. The absorbent hygiene product according to claim 5 , characterized in that the backsheet-side outer ply of the laminate is a hydrophilic material having an areal distribution of more than 20 cm 2 wetted area by a liquid quantity of 1 ml applied pointwise.

7. The absorbent hygiene product according to claim 1 characterized in that the laminate has cassette-like regions with superabsorbent polymer disposed therein.

8. The absorbent hygiene product according to claim 7 , characterized in that a multiplicity of open transport channels are formed between the cassette-like regions of the laminate.

9. The absorbent hygiene product according to claim 1 characterized in that the absorbent laminate towards the topsheet side bears at least regionally loosely against the topsheet.

10. The absorbent hygiene product according to claim 1 characterized in that the absorbent laminate towards the backsheet side bears at least regionally loosely against the backsheet.

Assignments (4)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 21, 2021
From: EVONIK OPERATIONS GMBH
To: EVONIK SUPERABSORBER GMBH
Reel/Frame 057885/0211 →
CHANGE OF NAME Recorded Dec 30, 2019
From: EVONIK DEGUSSA GMBH
To: EVONIK OPERATIONS GMBH
Reel/Frame 051449/0001 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 1, 2015
From: EVONIK INDUSTRIES AG
To: EVONIK DEGUSSA GMBH
Reel/Frame 037174/0982 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 7, 2013
From: FENSKE, WILFRIED
To: EVONIK INDUSTRIES AG
Reel/Frame 031559/0338 →