IP Library › Granted Patent US 11,083,645
Granted Patent B2
US 11,083,645 · App. 15/952,781 · Granted Aug 10, 2021

Disposable absorbent article

Inventors: Maja Wciorka (Braunschweig, DE); Carsten Heinrich Kreuzer (Hofheim, DE); Udo Friedel Schoenborn (Bad Soden, DE)
Assignee: The Procter & Gamble Company
A61F13/539A61F13/495A61F13/496A61F13/536A61F2013/5307A61F2013/53908
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Quick Facts
Patent No.
US 11,083,645
App. No.
15/952,781
Granted
Aug 10, 2021
Kind
B2
Abstract

A disposable absorbent article is provided having an absorbent core located in a chassis and including absorbent particulate polymer material defining at least one cavity. The absorbent core may be substantially cellulose free or comprise a combination of particulate absorbent polymer material and wood pulp. Methods for making such an absorbent core and corresponding disposable absorbent article are also disclosed.

Claims (36)

1. An absorbent article, comprising:

a. a topsheet;

b. a backsheet;

c. an absorbent core disposed between the topsheet and the backsheet, the absorbent core comprising a first substrate, a second substrate, and absorbent particulate polymer material arranged between the first substrate and the second substrate; and

d. an acquisition layer disposed between the absorbent core and the topsheet;

e. wherein the absorbent core comprises a longitudinally-extending cavity comprising a cavity volume;

f. wherein the second substrate deflects into the cavity and is adhered to the first substrate within the cavity;

g. wherein the cavity volume is not reduced when the absorbent particulate polymer material is contacted with a liquid and swells;

h. wherein the cavity comprises a first channel extending in a first direction and a second channel extending in a second direction that is different from the first direction; and

i. wherein the cavity does not reach any longitudinal or lateral edge of the absorbent core.

2. The absorbent article of claim 1 , wherein the second substrate is adhered to the first substrate within the cavity via glue.

3. The absorbent article of claim 1 , wherein the second substrate is adhered to the first substrate within the cavity via thermoplastic material.

4. The absorbent article of claim 1 , wherein the second substrate is adhered to the first substrate within the cavity via thermoplastic material, and wherein the absorbent core exhibits a wet immobilization of more than 50% according to the Wet Immobilization Test described herein.

5. The absorbent article of claim 1 , wherein the second substrate is adhered to the first substrate within the cavity via heat and/or pressure.

6. The absorbent article to claim 1 , wherein the first direction or the second direction is substantially parallel to a longitudinal axis of the absorbent article.

7. The absorbent article of claim 1 , wherein the first channel is connected to the second channel.

8. The absorbent article of claim 1 , wherein the absorbent core further comprises wood pulp.

9. The absorbent article of claim 1 , wherein the topsheet comprises an opening.

10. An absorbent article, comprising:

a. a topsheet;

b. a backsheet;

c. an absorbent core disposed between the topsheet and the backsheet, the absorbent core comprising a first substrate, a second substrate, and absorbent particulate polymer material arranged between the first substrate and the second substrate; and

d. an acquisition layer disposed between the absorbent core and the topsheet;

e. wherein the absorbent core comprises a longitudinally-extending cavity comprising a cavity volume;

f. wherein the second substrate deflects into the cavity and is adhered to the first substrate within the cavity;

g. wherein the cavity volume increases when the absorbent particulate polymer material is contacted with a liquid and swells;

h. wherein the cavity comprises a first channel extending in a first direction and a second channel extending in a second direction that is different from the first direction; and

i. wherein the cavity does not reach any longitudinal or lateral edge of the absorbent core.

11. The absorbent article of claim 10 , wherein the second substrate is adhered to the first substrate within the cavity via glue.

12. The absorbent article of claim 10 , wherein the second substrate is adhered to the first substrate within the cavity via thermoplastic material.

13. The absorbent article of claim 10 , wherein the second substrate is adhered to the first substrate within the cavity via thermoplastic material, and wherein the absorbent core exhibits a wet immobilization of more than 50% according to the Wet Immobilization Test described herein.

14. The absorbent article of claim 10 , wherein the second substrate is adhered to the first substrate within the cavity via heat and/or pressure.

15. The absorbent article to claim 10 , wherein the first direction or the second direction is substantially parallel to a longitudinal axis of the absorbent article.

16. The absorbent article of claim 10 , wherein the first channel is connected to the second channel.

17. The absorbent article of claim 10 , wherein the absorbent core further comprises wood pulp.

18. The absorbent article of claim 10 , wherein the topsheet comprises an opening.

Continuity (4)
Continuation 14700188 · Apr 30, 2015
Continuation 12416383 · Apr 1, 2009
Provisional Application 61048668 · Apr 29, 2008
Related Publication 20180228673A1 · Aug 16, 2018
Cited By (2)
US 12,295,822 US 12,433,801