Absorbent article with substantial volume capacity and retainable shape

• US 5,599,334 A
• Filed: 11/12/1993
• Issued: 02/04/1997
• Est. Priority Date: 11/12/1993
• Status: Expired due to Term

• Current Assignee: First Quality Retail Services LLC (First Quality Products LLC)
• Original Assignee: Confab, Inc. (Johnson Controls International plc)
• Inventors: Smith, Timothy A., Johnston, Lee W., Doucette, Mary E., Gephart, Carol A., Bove, Louis P.
• Primary Examiner(s): Weiss, John G.
• Assistant Examiner(s): REICHLE, KARIN M
• Application Number:
  US08/151,385
• Time in Patent Office: 1,180 Days
• Field of Search: 604/359, 604/365, 604/366, 604/368, 604/369, 604/378-380, 604/385.1-387
• US Class Current: 604/368
• CPC Class Codes: A61F 13/15203 Properties of the article, e.g. stiffness or absorbency chemical aspects A61L15/00
• CPC Class Codes: A61F 13/47 Sanitary towels, incontinence pads or napkins A61F13/49 takes precedence
• CPC Class Codes: A61F 13/533 having discontinuous areas of compression
• CPC Class Codes: A61F 2013/51085 in diamonds
• CPC Class Codes: A61F 2013/530007 being made from pulp
• CPC Class Codes: A61F 2013/8408 with odour control

Abstract

An absorbent article having a substantial volume capacity and retainable shape is disclosed which includes a cover sheet, an absorbent core, and a multi-layered moisture barrier laminate including a polymeric foam layer and at least one thermally bonded layer. Also, elastic members are attached to longitudinal sides of the article to form a cup-shaped article which has a cupping strength of about 30 grams to about 90 grams.

Claims

1. An absorbent cup-shaped article comprising:

(a) a cover sheet of a fluid pervious material;

(b) an absorbent core permeated with a superabsorbent polymer and having a garment-facing surface and a body-facing surface;

(c) a multi-layered moisture barrier laminate, comprised of a polymeric foam layer and at least one thermally bonded layer, wherein said laminate has a flexural resistance of from about 60 grams to about 106 grams;

(d) said laminate is positioned with said foam layer adjacent the garment-facing surface of said absorbent core, the cover sheet is positioned adjacent the body-facing surface of said absorbent core and the cover sheet and laminate being sealed together to enclose said absorbent core; and

(e) elastic members attached to longitudinal sides of said article to form said cup-shaped article which has a cupping strength of from about 30 grams to about 90 grams.

2. The absorbent article of claim 1 further comprising a tissue layer located on said body-facing surface.

3. The absorbent article of claim 1 wherein said cover sheet is nonwoven.

4. The absorbent article of claim 1 wherein said cover sheet is embossed.

5. The absorbent article of claim 1 wherein said cover sheet is diamond-shaped embossed.

6. The absorbent article of claim 1 wherein said absorbent core includes a contoured pulp fluff pad.

7. The absorbent article of claim 1 wherein said absorbent core is embossed.

8. The absorbent article of claim 1 wherein said superabsorbent polymer is granular.

9. The absorbent article of claim 1 wherein said absorbent core is sprayed with an odor neutralizer.

10. The absorbent article of claim 2 wherein said tissue layer extends the entire length of the absorbent core.

11. The absorbent article of claim 1 wherein said polymeric foam is a polyethylene foam.

12. The absorbent article of claim 1, wherein said thermally bonded layer is a nonwoven material.

13. The absorbent article of claim 1 wherein said polymeric foam and thermally bonded layer are adhered with a spray hot melt adhesive.

14. The absorbent article of claim 1 having the shape of a dumbbell.

15. The absorbent article of claim 1 wherein said cover sheet and said moisture barrier laminate extend beyond the absorbent core to form extended tabs thereof.

16. The absorbent article of claim 15, wherein said extended tabs are sealed together by sealing means.

17. The absorbent article of claim 1, wherein said absorbent article is an incontinence pad.

18. The absorbent article of claim 1, wherein said laminate has a flexural resistance of from about 45 to about 70 grams.

19. The absorbent article of claim 1, wherein said elastic members are elastic strands.

20. The absorbent article of claim 1, wherein said cupping strength is from about 45 to about 65 grams.