WO1997007832A8 - Absorbent foams made from high internal phase emulsions useful for acquiring aqueous fluids - Google Patents

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

Info

Publication number
WO1997007832A8
WO1997007832A8 PCT/US1996/000433 US9600433W WO9707832A8 WO 1997007832 A8 WO1997007832 A8 WO 1997007832A8 US 9600433 W US9600433 W US 9600433W WO 9707832 A8 WO9707832 A8 WO 9707832A8
Authority
WO
WIPO (PCT)
Prior art keywords
absorbent foams
absorbent
internal phase
high internal
aqueous fluids
Prior art date
Application number
PCT/US1996/000433
Other languages
French (fr)
Other versions
WO1997007832A1 (en
Inventor
Thomas Allen Desmarais
Original Assignee
Procter & Gamble
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to AU46561/96A priority Critical patent/AU728334B2/en
Application filed by Procter & Gamble filed Critical Procter & Gamble
Priority to JP9510211A priority patent/JPH11511496A/en
Priority to CZ972183A priority patent/CZ218397A3/en
Priority to EP96902136A priority patent/EP0847283A1/en
Priority to NZ301194A priority patent/NZ301194A/en
Priority to BR9607720A priority patent/BR9607720A/en
Priority to CA002208575A priority patent/CA2208575C/en
Priority to HU0203096A priority patent/HUP0203096A2/en
Publication of WO1997007832A1 publication Critical patent/WO1997007832A1/en
Priority to NO973187A priority patent/NO973187L/en
Priority to FI972918A priority patent/FI972918A/en
Priority to MXPA/A/1997/005237A priority patent/MXPA97005237A/en
Publication of WO1997007832A8 publication Critical patent/WO1997007832A8/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/42—Use of materials characterised by their function or physical properties
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/42—Use of materials characterised by their function or physical properties
    • A61L15/425—Porous materials, e.g. foams or sponges
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F2/00—Processes of polymerisation
    • C08F2/32—Polymerisation in water-in-oil emulsions
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
    • Y10T428/249975—Void shape specified [e.g., crushed, flat, round, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
    • Y10T428/249978—Voids specified as micro
    • Y10T428/249979—Specified thickness of void-containing component [absolute or relative] or numerical cell dimension
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
    • Y10T428/249978—Voids specified as micro
    • Y10T428/24998—Composite has more than two layers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/647—Including a foamed layer or component
    • Y10T442/651—Plural fabric layers

Abstract

Absorbent foam 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).
PCT/US1996/000433 1995-08-30 1996-01-11 Absorbent foams made from high internal phase emulsions useful for acquiring aqueous fluids WO1997007832A1 (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
BR9607720A BR9607720A (en) 1995-08-30 1996-01-11 Polymeric foam material absorbent article diaper and process for the preparation of an absorbent polymeric foam material capable of acquiring and distributing aqueous fluids
JP9510211A JPH11511496A (en) 1995-08-30 1996-01-11 Absorbent foams made from high internal phase emulsions useful for obtaining aqueous fluids
CZ972183A CZ218397A3 (en) 1995-08-30 1996-01-11 Absorption foams prepared from water-in-oil emulsion with a high ratio of water amount to oil, suitable for absorption of aqueous liquids
EP96902136A EP0847283A1 (en) 1995-08-30 1996-01-11 Absorbent foams made from high internal phase emulsions useful for acquiring aqueous fluids
NZ301194A NZ301194A (en) 1995-08-30 1996-01-11 Non-ionic, polymeric, absorbent foam and a flexible, microporous, open-celled material made from high internal phase emulsions; use in disposable diapers
AU46561/96A AU728334B2 (en) 1995-08-30 1996-01-11 Absorbent foams made from high internal phase emulsions useful for acquiring aqueous fluids
CA002208575A CA2208575C (en) 1995-08-30 1996-01-11 Absorbent foams made from high internal phase emulsions useful for acquiring aqueous fluids
HU0203096A HUP0203096A2 (en) 1995-08-30 1996-01-11 Absorbent foams made from high internal phase emulsions useful for acquiring aqueous fluids
NO973187A NO973187L (en) 1995-08-30 1997-07-09 Absorbent foam formed from "High Internal Phase" emulsions useful for Õ collecting aqueous fluids
FI972918A FI972918A (en) 1995-08-30 1997-07-09 Absorbent foams made from high internal phase emulsions useful for receiving aqueous liquids
MXPA/A/1997/005237A MXPA97005237A (en) 1995-08-30 1997-07-10 Absorbent foams made from high internal phase emulsions useful for acquiring aqueous fluids

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/520,793 1995-08-30
US08/520,793 US5550167A (en) 1995-08-30 1995-08-30 Absorbent foams made from high internal phase emulsions useful for acquiring aqueous fluids

Publications (2)

Publication Number Publication Date
WO1997007832A1 WO1997007832A1 (en) 1997-03-06
WO1997007832A8 true WO1997007832A8 (en) 2002-10-10

Family

ID=24074090

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1996/000433 WO1997007832A1 (en) 1995-08-30 1996-01-11 Absorbent foams made from high internal phase emulsions useful for acquiring aqueous fluids

Country Status (22)

Country Link
US (4) US5550167A (en)
EP (1) EP0847283A1 (en)
JP (1) JPH11511496A (en)
KR (1) KR100258100B1 (en)
CN (1) CN1183728A (en)
AR (1) AR000658A1 (en)
AU (1) AU728334B2 (en)
BR (1) BR9607720A (en)
CA (1) CA2208575C (en)
CO (1) CO4700311A1 (en)
CZ (1) CZ218397A3 (en)
EG (1) EG22099A (en)
FI (1) FI972918A (en)
HU (1) HUP0203096A2 (en)
MY (1) MY114415A (en)
NO (1) NO973187L (en)
NZ (1) NZ301194A (en)
PE (1) PE46697A1 (en)
TR (1) TR199700614T1 (en)
TW (1) TW391927B (en)
WO (1) WO1997007832A1 (en)
ZA (1) ZA96140B (en)

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