CA2208642A1 - Foams made from high internal phase emulsions useful as absorbent members for catamenial pads - Google Patents
Foams made from high internal phase emulsions useful as absorbent members for catamenial padsInfo
- Publication number
- CA2208642A1 CA2208642A1 CA002208642A CA2208642A CA2208642A1 CA 2208642 A1 CA2208642 A1 CA 2208642A1 CA 002208642 A CA002208642 A CA 002208642A CA 2208642 A CA2208642 A CA 2208642A CA 2208642 A1 CA2208642 A1 CA 2208642A1
- Authority
- CA
- Canada
- Prior art keywords
- foams
- high internal
- internal phase
- absorbent members
- blood
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
- A61F13/47—Sanitary towels, incontinence pads or napkins
- A61F13/472—Sanitary towels, incontinence pads or napkins specially adapted for female use
- A61F13/47218—Sanitary towels, incontinence pads or napkins specially adapted for female use with a raised crotch region, e.g. hump
- A61F13/47227—Sanitary towels, incontinence pads or napkins specially adapted for female use with a raised crotch region, e.g. hump for interlabial use
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/15203—Properties of the article, e.g. stiffness or absorbency
-
- 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
- A61L15/22—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing macromolecular materials
- A61L15/24—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives thereof
-
- 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
-
- 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
- A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
- A61L31/04—Macromolecular materials
- A61L31/048—Macromolecular materials obtained by reactions only involving carbon-to-carbon unsaturated bonds
-
- 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
- A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
- A61L31/14—Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
- A61L31/146—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
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24273—Structurally defined web or sheet [e.g., overall dimension, etc.] including aperture
-
- 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
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24273—Structurally defined web or sheet [e.g., overall dimension, etc.] including aperture
- Y10T428/24322—Composite web or sheet
Abstract
Foams capable of absorbing blood and blood-based fluids, especially menses.
These absorbent foams have high capillary absorption pressures required of absorbents used in catamenial products, yet have sufficient openness to allow free movement of the insoluble components in blood-based fluids such as menses. These absorbent foams are made by polymerizing high internal phase emulsions (HIPEs) where the volume to weight ratio of the water phase to the oil phase is in the range of from about 20:1 to about 125:1. These foams are particularly useful as absorbent members for catamenial pads.
These absorbent foams have high capillary absorption pressures required of absorbents used in catamenial products, yet have sufficient openness to allow free movement of the insoluble components in blood-based fluids such as menses. These absorbent foams are made by polymerizing high internal phase emulsions (HIPEs) where the volume to weight ratio of the water phase to the oil phase is in the range of from about 20:1 to about 125:1. These foams are particularly useful as absorbent members for catamenial pads.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002226408A CA2226408C (en) | 1995-01-10 | 1996-01-11 | Foams made from high internal phase emulsions useful as absorbent members for catamenial pads |
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US37069795A | 1995-01-10 | 1995-01-10 | |
US08/370,697 | 1995-01-10 | ||
US08/542,497 | 1995-10-13 | ||
US08/542,497 US5849805A (en) | 1995-01-10 | 1995-10-13 | Process for making foams useful as absorbent members for catamenial pads |
PCT/US1996/000388 WO1996021682A1 (en) | 1995-01-10 | 1996-01-11 | Foams made from high internal phase emulsions useful as absorbent members for catamenial pads |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002226408A Division CA2226408C (en) | 1995-01-10 | 1996-01-11 | Foams made from high internal phase emulsions useful as absorbent members for catamenial pads |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2208642A1 true CA2208642A1 (en) | 1996-07-18 |
CA2208642C CA2208642C (en) | 2004-04-13 |
Family
ID=27005062
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002226408A Expired - Fee Related CA2226408C (en) | 1995-01-10 | 1996-01-11 | Foams made from high internal phase emulsions useful as absorbent members for catamenial pads |
CA002208642A Expired - Fee Related CA2208642C (en) | 1995-01-10 | 1996-01-11 | Foams made from high internal phase emulsions useful as absorbent members for catamenial pads |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002226408A Expired - Fee Related CA2226408C (en) | 1995-01-10 | 1996-01-11 | Foams made from high internal phase emulsions useful as absorbent members for catamenial pads |
Country Status (21)
Country | Link |
---|---|
US (2) | US5795921A (en) |
EP (1) | EP0802930B1 (en) |
JP (1) | JP3432828B2 (en) |
CN (1) | CN1091449C (en) |
AR (1) | AR000655A1 (en) |
AU (1) | AU713687B2 (en) |
BR (1) | BR9606735A (en) |
CA (2) | CA2226408C (en) |
CZ (1) | CZ218197A3 (en) |
DE (1) | DE69618174T2 (en) |
EG (1) | EG21087A (en) |
ES (1) | ES2171654T3 (en) |
FI (1) | FI972917A (en) |
HK (1) | HK1004140A1 (en) |
HU (1) | HUP9800796A2 (en) |
MX (1) | MX9705239A (en) |
MY (1) | MY132433A (en) |
NO (1) | NO973186L (en) |
TR (1) | TR199700615T2 (en) |
TW (1) | TW460302B (en) |
WO (1) | WO1996021682A1 (en) |
Families Citing this family (148)
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US5550167A (en) * | 1995-08-30 | 1996-08-27 | The Procter & Gamble Company | Absorbent foams made from high internal phase emulsions useful for acquiring aqueous fluids |
US5977194A (en) * | 1995-11-15 | 1999-11-02 | The Dow Chemical Company | High internal phase emusions and porous materials prepared therefrom |
US6147131A (en) | 1995-11-15 | 2000-11-14 | The Dow Chemical Company | High internal phase emulsions (HIPEs) and foams made therefrom |
AU2670697A (en) * | 1996-04-08 | 1997-10-29 | Shell Oil Company | Foam filter material and process to prepare foam filter material |
US6060636A (en) † | 1996-09-04 | 2000-05-09 | Kimberly-Clark Worldwide, Inc. | Treatment of materials to improve handling of viscoelastic fluids |
US5843067A (en) * | 1996-11-04 | 1998-12-01 | The Procter & Gamble Company | Absorbent article having a containment cuff |
US5968853A (en) * | 1997-03-10 | 1999-10-19 | The Procter & Gamble Company | Tissue with a moisture barrier |
US6048908A (en) | 1997-06-27 | 2000-04-11 | Biopore Corporation | Hydrophilic polymeric material |
SE515235C2 (en) * | 1998-05-12 | 2001-07-02 | Sca Hygiene Prod Ab | Absorbent structure in an absorbent article, method of making such an absorbent structure, and absorbent articles comprising such structure |
US6261679B1 (en) * | 1998-05-22 | 2001-07-17 | Kimberly-Clark Worldwide, Inc. | Fibrous absorbent material and methods of making the same |
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1996
- 1996-01-10 MY MYPI96000084A patent/MY132433A/en unknown
- 1996-01-10 AR AR33497996A patent/AR000655A1/en unknown
- 1996-01-10 EG EG2496A patent/EG21087A/en active
- 1996-01-11 AU AU48973/96A patent/AU713687B2/en not_active Ceased
- 1996-01-11 JP JP52181596A patent/JP3432828B2/en not_active Expired - Fee Related
- 1996-01-11 CA CA002226408A patent/CA2226408C/en not_active Expired - Fee Related
- 1996-01-11 HU HU9800796A patent/HUP9800796A2/en unknown
- 1996-01-11 WO PCT/US1996/000388 patent/WO1996021682A1/en not_active Application Discontinuation
- 1996-01-11 ES ES96905138T patent/ES2171654T3/en not_active Expired - Lifetime
- 1996-01-11 EP EP96905138A patent/EP0802930B1/en not_active Expired - Lifetime
- 1996-01-11 CZ CZ972181A patent/CZ218197A3/en unknown
- 1996-01-11 TR TR97/00615T patent/TR199700615T2/en unknown
- 1996-01-11 CA CA002208642A patent/CA2208642C/en not_active Expired - Fee Related
- 1996-01-11 CN CN96192373A patent/CN1091449C/en not_active Expired - Lifetime
- 1996-01-11 DE DE69618174T patent/DE69618174T2/en not_active Expired - Lifetime
- 1996-01-11 MX MX9705239A patent/MX9705239A/en unknown
- 1996-01-11 BR BR9606735A patent/BR9606735A/en not_active Application Discontinuation
- 1996-05-22 TW TW085106062A patent/TW460302B/en not_active IP Right Cessation
- 1996-07-30 US US08/688,496 patent/US5795921A/en not_active Expired - Lifetime
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1997
- 1997-07-09 FI FI972917A patent/FI972917A/en unknown
- 1997-07-09 NO NO973186A patent/NO973186L/en not_active Application Discontinuation
- 1997-10-20 US US08/955,555 patent/US5899893A/en not_active Expired - Fee Related
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1998
- 1998-04-27 HK HK98103535A patent/HK1004140A1/en not_active IP Right Cessation
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BR9606735A (en) | 1998-01-13 |
AU713687B2 (en) | 1999-12-09 |
CN1091449C (en) | 2002-09-25 |
EP0802930A1 (en) | 1997-10-29 |
AR000655A1 (en) | 1997-07-10 |
CN1177359A (en) | 1998-03-25 |
JPH10512168A (en) | 1998-11-24 |
NO973186L (en) | 1997-09-10 |
HUP9800796A2 (en) | 1998-07-28 |
CA2226408C (en) | 2001-12-11 |
NO973186D0 (en) | 1997-07-09 |
CA2208642C (en) | 2004-04-13 |
US5899893A (en) | 1999-05-04 |
EG21087A (en) | 2000-10-31 |
MY132433A (en) | 2007-10-31 |
US5795921A (en) | 1998-08-18 |
FI972917A0 (en) | 1997-07-09 |
AU4897396A (en) | 1996-07-31 |
DE69618174D1 (en) | 2002-01-31 |
FI972917A (en) | 1997-09-08 |
ES2171654T3 (en) | 2002-09-16 |
CA2226408A1 (en) | 1996-07-18 |
WO1996021682A1 (en) | 1996-07-18 |
TR199700615T2 (en) | 1999-09-21 |
CZ218197A3 (en) | 1997-12-17 |
JP3432828B2 (en) | 2003-08-04 |
TW460302B (en) | 2001-10-21 |
EP0802930B1 (en) | 2001-12-19 |
DE69618174T2 (en) | 2002-08-22 |
MX9705239A (en) | 1997-10-31 |
HK1004140A1 (en) | 1998-11-20 |
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