Richard W Goodwin

US Patent:

20080058747, Mar 6, 2008

Filed:

Aug 31, 2006

Appl. No.:

11/514540

Inventors:

Arvinder Pal Singh Kainth - Menasha WI, US
Jason Matthew Laumer - Appleton WI, US
William G.-J. Chiang - Yorktown VA, US
Norbert Herfert - Altenstadt, DE
Michael A. Mitchell - Waxhaw NC, US
Richard Keith Goodwin - Suffolk VA, US

International Classification:

A61F 13/15

US Classification:

604368, 604372

Abstract:

An absorbent article can have a topsheet, a backsheet, and an absorbent core disposed between the topsheet and the backsheet. In some aspects, at least one of the topsheet, backsheet, and absorbent core is stretchable. In other aspects, the absorbent core can comprise layers, at least one of which includes substantially the superabsorbent material and at least one of which includes substantially fluff. In some aspects, the article includes superabsorbent material which has a centrifuge retention capacity of at least about 25 g/g, a free swell gel bed permeability of at least 200 Darcies, and a gel integrity of at least 2. In some aspects, the superabsorbent material is coated with a polyvinylamine.