Absorbent foams made from high internal phase emulsions useful for acquiring and distributing aqueous fluids

US5632737A · kind A · utility

Assignee

• The Procter & Gamble Company · US

Inventors

• Keith Joseph Stone · Lancaster, US
• Thomas Allen DesMarais · Cincinnati, US
• Gary Dean LaVon · Kyles, US
• Stephen Allen Goldman · Wyoming, US
• Paul Seiden · Cincinnati, US

Key dates

• Filing date: May 14, 1996
• Grant date: May 27, 1997
• Expiry date: May 14, 2016

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T442/647
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

Absorbent foams materials that are capable of acquiring and distributing aqueous fluids, especially discharged body fluids such as urine. These absorbent foams combine relatively high capillary absorption pressures and capacity-per-weight properties that allow them to acquire fluid, with or without the aid of gravity. These absorbent foams also give up this fluid efficiently to higher absorption pressure storage materials, including foam-based absorbent fluid storage components, without collapsing. These absorbent foams are made by polymerizing high internal phase emulsions (HIPEs).