Absorbent structure with superabsorbent material

US8021998B2 · kind B2 · utility

Assignee

• Kimberly-Clark Worldwide, Inc. · US

Inventors

• Jian Qin · Appleton, US
• Sandra M. Rogers · Appleton, US
• Michael John Niemeyer · Appleton, US
• Kenneth Raymond Schueler, Jr. · Appleton, US
• Steven Michael Hurley · Racine, US
• Lawrence Howell Sawyer · Neenah, US
• Whei-Neen Hsu · Greensboro, US
• Mark Joy · Greensboro, US
• Scott J. Smith · Greensboro, US
• Markus Frank · Baden-Baden, DE
• Nancy Lange · San Francisco, US

Key dates

• Filing date: May 26, 2010
• Grant date: Sep 20, 2011
• Expiry date: May 26, 2030

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T442/696
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

An absorbent structure made at least in part from a superabsorbent material having a retention capacity (CRC) as determined by a Centrifuge Retention Capacity Test of at least about 25 g/g and a free swell gel bed permeability (GBP) as determined by a Free Swell Gel Bed Permeability Test of at least 575×10−9 cm2. In another embodiment, the absorbent structure is made at least in part from a superabsorbent material having a retention capacity (CRC) as determined by a Centrifuge Retention Capacity Test of at least about 25 g/g, an absorbency under load (AUL) at 0.9 psi as determined by an Absorbency Under Load Test of at least 18 and a free swell gel bed permeability (GBP) as determined by a Free Swell Gel Bed Permeability Test of at least about 350×10−9 cm2.