IP Library Granted Patent US 8,952,212
Granted Patent B2
US 8,952,212 · App. 13/326,725 · Granted Feb 10, 2015

Absorbent article including an absorbent core layer having a material free zone and a transfer layer arranged below the absorbent core layer

View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 8,952,212
App. No.
13/326,725
Granted
Feb 10, 2015
Kind
B2
Abstract

An absorbent article including a liquid permeable cover layer, a liquid impermeable barrier layer, an absorbent core arranged adjacent to the cover layer, the absorbent core including a material-free zone extending, a transfer layer arranged between the core and the barrier layer, the transfer layer including a planar portion having an upper surface and a lower surface and a protrusion extending upwardly from the upper surface.

Claims (20)

1. An absorbent article comprising:

a longitudinally extending centerline;

a transversely extending centerline;

a liquid permeable cover layer having a body facing surface;

a liquid impermeable barrier layer;

an absorbent core arranged adjacent to the cover layer;

the transfer layer including a planar portion having an upper surface and a lower surface and a plurality of protrusions extending upwardly from the upper surface;

wherein the absorbent core includes an upper surface and a lower surface, the absorbent core comprising a plurality of beams and a plurality of material-free zones, each of the beams arranged in a spaced relationship to an adjacent beam and each of the beams being separated from an adjacent beam by a material-free zone, each of the material-free zones extending from the upper surface to the lower surface;

wherein the cover layer includes a plurality of first regions arranged in spaced relationship to the transfer layer and a plurality of second regions, each of the second regions located between two adjacent beams and arranged in surface to surface contact with the transfer layer;

wherein each one of the plurality of protrusions is structured and arranged to be received within, and extend upwardly into one of the plurality of material free zones; and

wherein each protrusion has a height that is greater than a distance between the upper surface of the absorbent core and the lower surface of the absorbent core.

2. The absorbent article according to claim 1 , wherein each of the material-free zones preferably has a width in the range of between about 1 mm and about 10 mm and a length in the range of between about 40 mm and about 250 mm.

3. The absorbent article according to claim 2 , wherein the absorbent article includes between 2 and about 7 longitudinally extending material-free zones and each of the material free zones is spaced from an adjacent material-free zone in the transverse direction by a distance from about 5 mm to about 30 mm.

4. The absorbent article according to claim 3 , wherein each of the material-free zones extend over a surface area in the range of between 50 mm2 and about 4000 mm2.

5. The absorbent article according to claim 4 , wherein each protrusion has a width in the range of between about 1 mm and about 10 mm and a length in the range of between about 40 mm and about 250 mm.

6. The absorbent article according to claim 5 , wherein the absorbent article includes between 2 and 7 protrusions and each protrusion is spaced from an adjacent protrusion in the transverse direction by a distance from about 5 mm to about 30 mm.

7. The absorbent article according to claim 6 , wherein each of the protrusions extend over a surface area in the range of between 50 mm2 and about 4000 mm2.

8. The absorbent article according to claim 7 , wherein the protrusion has a height in the range of between about 0.5 mm to about 50 mm.

9. The absorbent article according to claim 8 , wherein the protrusion has a height in the range of between about 1.0 mm to about 35 mm.

10. The absorbent article according to claim 9 , wherein the protrusion has a height in the range of between about 1.5 mm to about 30 mm.

Assignments (2)
MERGER AND CHANGE OF NAME Recorded Jul 1, 2015
From: MCNEIL-PPC, INC.; JOHNSON & JOHNSON CONSUMER INC.
To: JOHNSON & JOHNSON CONSUMER INC.
Reel/Frame 036042/0443 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 27, 2012
From: BISSAH, KOFI; HERNANDEZ, FRANCISCO J.V.; PAQUES, FERNANDA WIERMANN; POCCIA, JOHN
To: MCNEIL-PPC, INC.
Reel/Frame 029036/0923 →