Thin-unit-wet absorbent foam materials for aqueous body fluids and process for making same

US5387207A · kind A · utility

Assignee

• The Procter & Gamble Company · US

Inventors

• John Collins Dyer · Cincinnati, US
• Thomas Allen DesMarais · Cincinnati, US
• Gary Dean LaVon · Kyles, US
• Keith Joseph Stone · Lancaster, US
• Gregory Wade Taylor · Forest Park, US
• Gerald Alfred Young · Lawrenceburg, US

Key dates

• Filing date: Dec 11, 1992
• Grant date: Feb 7, 1995
• Expiry date: Dec 11, 2012

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08J2207/12
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

Relatively thin, collapsed, i.e. unexpanded, polymeric foam materials that, upon contact with aqueous body fluids, expand and absorb such fluids, are disclosed. A process for consistently obtaining such relatively thin, collapsed polymeric foam materials by polymerizing a specific type of water-in-oil emulsion, commonly known as High Internal Phase Emulsions or "HIPE", is also disclosed.