Elastic disposable diaper

• US 4,731,066 A
• Filed: 02/10/1987
• Issued: 03/15/1988
• Est. Priority Date: 03/30/1984
• Status: Expired due to Term

• Current Assignee: Paragon Trade Brands Inc. (Johnson Controls International plc)
• Original Assignee: Personal Products Co. (Johnson & Johnson)
• Inventors: Korpman, Ralf
• Primary Examiner(s): YASKO JR, JOHN D
• Application Number:
  US07/012,984
• Time in Patent Office: 399 Days
• Field of Search: 604/385.1, 604/385.2, 604/366, 604/370, 604/372, 604/373, 604/369, 604/367, 128/155, 128/156
• US Class Current: 604/366
• CPC Class Codes: A61F 13/49007 Form-fitting, self-adjusting disposable diapers
• CPC Class Codes: A61F 13/49009 with elastic means
• CPC Class Codes: A61F 13/49011 the elastic means is located at the waist region
• CPC Class Codes: A61F 2013/49076 as "I"-shaped
• CPC Class Codes: A61F 2013/51409 being a film
• CPC Class Codes: A61F 2013/51492 having specially shaped gas or air bubbles or bag-like structure
• CPC Class Codes: A61F 2013/53445 from several sheets

Abstract

The invention provides an elastic laminated disposable diaper which has a liquid-impermeable backing which is produced from an initially molten extruded elastic film, an absorbent core and a liquid-permeable facing. The facing is at least about 25 percent extensible and is coextensive with the backing. The absorbent unit being laminated between the facing and the backing.

Claims

1. An elastic, laminated disposable diaper comprising:

a liquid-impermeable backing comprised of a pressure sensitive film having an outer backing fabric laminated to said elastic film, said backing fabric having at least about 25% extensibility, an absorbent core and a liquid-permeable facing comprised of fabric having at least about 25% extensibility and being coextensive with said backing, said absorbent core being laminated between said facing and said backing.

2. The disposable diaper of claim 1 wherein said absorbent core is comprised of a loosely compacted cellulosic fibrous bat.

3. The disposable diaper of claim 1 wherein said pressure sensitive film is a hot melt adhesive.

4. The disposable diaper of claim 1 wherein said initially molten film is a foam.