WO1990003156A1 - Disposable sanitary articles - Google Patents

Disposable sanitary articles Download PDF

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Publication number
WO1990003156A1
WO1990003156A1 PCT/GB1989/001141 GB8901141W WO9003156A1 WO 1990003156 A1 WO1990003156 A1 WO 1990003156A1 GB 8901141 W GB8901141 W GB 8901141W WO 9003156 A1 WO9003156 A1 WO 9003156A1
Authority
WO
WIPO (PCT)
Prior art keywords
alkali
article
disposable
liner
sanitary article
Prior art date
Application number
PCT/GB1989/001141
Other languages
French (fr)
Inventor
Roger Shipley
Original Assignee
Disposables And Diaper Developments Limited
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
Application filed by Disposables And Diaper Developments Limited filed Critical Disposables And Diaper Developments Limited
Publication of WO1990003156A1 publication Critical patent/WO1990003156A1/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
    • A61L15/62—Compostable, hydrosoluble or hydrodegradable materials
    • 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
    • A61F13/15211—Properties of the article, e.g. stiffness or absorbency soluble or disintegratable in liquid
    • 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
    • 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
    • A61F13/15211—Properties of the article, e.g. stiffness or absorbency soluble or disintegratable in liquid
    • A61F2013/15227—Properties of the article, e.g. stiffness or absorbency soluble or disintegratable in liquid by its solubility in particular Ph solution
    • 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
    • A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F2013/49068—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterized by the shape of the outline
    • A61F2013/49076—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterized by the shape of the outline as "I"-shaped

Definitions

  • This invention relates to disposable articles and is especially but not exclusively concerned with disposable sanitary articles.
  • Sanitary articles include, inter alia, diapers, sanitary towels or similar, liners for childrens ' potties, bedpans and bedsheets and any other article provided to receive bodily excretion.
  • the present invention provides a disposable article formed of a film or non-woven material which is inherently, or treated to be, alkali dissolvable or degradable.
  • the disposable article may be formed of, or treated with, acrylic copolymer resin or polyacrylic esters.
  • the treatment may be by way of coacting or integration with the disposable article during manufacture of same, for example extrusion or moulding or any other process known to those skilledAn the art of material treatment.
  • a sanitary article including or consisting of a disposable sheet or layer constituted by a film or non- woven material which is inherently, or treated to be alkali dissolvable or degradable.
  • the soiled sheet or layer may be suitable for disposable in refuse bag or sites where is disintegrates.
  • the sheet or layer and any associated body waste matter may be disposed of into a toilet bowl where it disintegrates and can be flushed away with the body waste matter.
  • Examples of other disposable articles within the scope of the present invention are packaging materials, and disposable articles of clothing especially those of a next- to-body nature.
  • the sanitary article may be a disposable diaper comprising a detachable, inner, next-to- body liner, preferably of non-woven material, having an alkaline-disintegratable nature.
  • the sanitary article may be a liner for a child's potty or for a bedpan and formed of an alkali sensitive film or an alkali-disintegratable non-woven material shaped to conform with the inner configuration of the potty or bedpan.
  • the liner may be in the form of an open-topped bag to receive and contain excreted body waste matter.
  • Such liners may, as aforesaid, be disposed of into a toilet bowl for disintegration and flushing away with associated body waste matter.
  • the water in the toilet bowl does not have a sufficiently high alkali pH value then this is corrected by adding to the water a suitable alkali pH adjuster.
  • the alkali pH adjuster may, inter alia, be in the form of a toilet block, a tablet, a pellet, a capsule or a liquid solution.
  • alkali pH adjusters are, inter alia, alkali salts such, for example, as sodium carbonate, or caustic cleaners such, for example, as sodium or potassium hydroxide, or domestic bleach type formulations such, for example, as sodium hypochlorite, or detergents with alkali additive such, for example, as triethanola ine or ammonia.
  • the alkali pH adjuster may comprise a pH colour indicator whereby a visible indication will be given that the water in the toilet bowl has a sufficiently high pH alkali value for liner disintegration to occur.
  • a method of disposing of a sanitary article, or liner therefor, in a non-health risk manner comprising the steps of forming the sanitary article, or liner therefor, of an alkali-sensitive film or an alkali- disintegratable non-woven material, and disposing of the sanitary article, or liner therefor, into a toilet bowl containing water either of a sufficiently high alkali pH value, or treated with an alkali pH adjuster to provide a sufficiently high alkali pH value, to cause disintegration of the soiled sanitary article, or liner therefor.
  • a sufficiently high pH value is 7.5 and above and a preferred but not limitative pH value is within the range of 7.5 to 10.00.
  • Examples of other disposable articles within the scope of the present invention are packaging materials, and disposable articles of clothing especially those of a next- to-body nature.
  • the diaper 10 illustrated comprises an outer impervious layer 11 which is anatomically shaped, an intermediate liquid-absorbent layer or layers 12, a non- woven pervious cover layer 13, and an inner next-to-body pervious non-woven layer 14 which is detachable, being lightly tack-bonded to the layer 13. Securing tabs or tapes 15 are secured to both the outer impervious layer 11 and the cover layer 13 at one end of the diaper 10.
  • the inner layer 14 has a width not less than that of the crotch region of the diaper, is equal to the length of the diaper, and is preferably also anatomically shaped.
  • the layers 11 to 14 can be laminated together during an in-line manufacturing process or alternatively layers 13 and 14 can be tack-bonded in an off-line process.
  • the inner detachable layer 14 is, as aforesaid, formed of a suitable alkali-disintegratable non-woven material and is adapted for disintegration disposal in alkali-enhanced water in a toilet bowl.
  • the disposable article may be formed by coating or co-extruding the alkali soluble polymer onto a water soluble film such, for example, as polyvinyl alcohol or poly(ethylene) oxide.
  • the present .invention provides for the quick and safe (in terms of health and pollution) disintegration of disposable articles made from, or incorporating, alkali-dissolvable film or non-woven material in an alkali environment.

Abstract

A disposable article is formed of an alkali-sensitive film or an alkali-disintegratable non-woven material and is adapted to dissolve in an alkali environment, which may be liquid, having a sufficiently high alkali pH value, say 7.5 or more. An example of such an article is the inner, next-to-body, liner of a disposable diaper which can be disposed of in a toilet bowl with contained body waste matter, the liner disintegrating so that it can be flushed away with the latter. If necessary, the pH alkali value of the water in the toilet bowl can be enhanced by a pH adjuster. Such disposable articles remove health and pollution risks.

Description

DISPOSABLE SANITARY ARTICLES
This invention relates to disposable articles and is especially but not exclusively concerned with disposable sanitary articles.
Sanitary articles include, inter alia, diapers, sanitary towels or similar, liners for childrens ' potties, bedpans and bedsheets and any other article provided to receive bodily excretion.
The substantial and increasing use of disposable articles is a major concern to local authorities in particular, and environmentalists in general, in terms of health risk and pollution.
In its broadest aspect the present invention provides a disposable article formed of a film or non-woven material which is inherently, or treated to be, alkali dissolvable or degradable.
The disposable article may be formed of, or treated with, acrylic copolymer resin or polyacrylic esters.
The treatment may be by way of coacting or integration with the disposable article during manufacture of same, for example extrusion or moulding or any other process known to those skilledAn the art of material treatment.
Also according to the present invention there is provided a sanitary article including or consisting of a disposable sheet or layer constituted by a film or non- woven material which is inherently, or treated to be alkali dissolvable or degradable.
The soiled sheet or layer may be suitable for disposable in refuse bag or sites where is disintegrates.
Alternatively the sheet or layer and any associated body waste matter may be disposed of into a toilet bowl where it disintegrates and can be flushed away with the body waste matter.
Examples of other disposable articles within the scope of the present invention are packaging materials, and disposable articles of clothing especially those of a next- to-body nature.
More specifically, the sanitary article may be a disposable diaper comprising a detachable, inner, next-to- body liner, preferably of non-woven material, having an alkaline-disintegratable nature.
Alternatively, the sanitary article may be a liner for a child's potty or for a bedpan and formed of an alkali sensitive film or an alkali-disintegratable non-woven material shaped to conform with the inner configuration of the potty or bedpan.
The liner may be in the form of an open-topped bag to receive and contain excreted body waste matter.
Such liners may, as aforesaid, be disposed of into a toilet bowl for disintegration and flushing away with associated body waste matter.
If, as would be usual, the water in the toilet bowl does not have a sufficiently high alkali pH value then this is corrected by adding to the water a suitable alkali pH adjuster.
The alkali pH adjuster may, inter alia, be in the form of a toilet block, a tablet, a pellet, a capsule or a liquid solution.
Convenient alkali pH adjusters are, inter alia, alkali salts such, for example, as sodium carbonate, or caustic cleaners such, for example, as sodium or potassium hydroxide, or domestic bleach type formulations such, for example, as sodium hypochlorite, or detergents with alkali additive such, for example, as triethanola ine or ammonia.
The alkali pH adjuster may comprise a pH colour indicator whereby a visible indication will be given that the water in the toilet bowl has a sufficiently high pH alkali value for liner disintegration to occur.
Also according to the present invention there is provided a method of disposing of a sanitary article, or liner therefor, in a non-health risk manner, the method comprising the steps of forming the sanitary article, or liner therefor, of an alkali-sensitive film or an alkali- disintegratable non-woven material, and disposing of the sanitary article, or liner therefor, into a toilet bowl containing water either of a sufficiently high alkali pH value, or treated with an alkali pH adjuster to provide a sufficiently high alkali pH value, to cause disintegration of the soiled sanitary article, or liner therefor.
A sufficiently high pH value is 7.5 and above and a preferred but not limitative pH value is within the range of 7.5 to 10.00.
Examples of other disposable articles within the scope of the present invention are packaging materials, and disposable articles of clothing especially those of a next- to-body nature.
An embodiment of the present invention will now be described, by way of example, with reference to the accompanying drawing which is a perspective view of disposable diaper.
The diaper 10 illustrated comprises an outer impervious layer 11 which is anatomically shaped, an intermediate liquid-absorbent layer or layers 12, a non- woven pervious cover layer 13, and an inner next-to-body pervious non-woven layer 14 which is detachable, being lightly tack-bonded to the layer 13. Securing tabs or tapes 15 are secured to both the outer impervious layer 11 and the cover layer 13 at one end of the diaper 10.
The inner layer 14 has a width not less than that of the crotch region of the diaper, is equal to the length of the diaper, and is preferably also anatomically shaped.
The layers 11 to 14 can be laminated together during an in-line manufacturing process or alternatively layers 13 and 14 can be tack-bonded in an off-line process.
The inner detachable layer 14 is, as aforesaid, formed of a suitable alkali-disintegratable non-woven material and is adapted for disintegration disposal in alkali-enhanced water in a toilet bowl.
The disposable article, of whatever nature, may be formed by coating or co-extruding the alkali soluble polymer onto a water soluble film such, for example, as polyvinyl alcohol or poly(ethylene) oxide.
The use of such a material instead of the presently non-soluble and non-biodegradable polythene used in diapers will permit a quick disintegration of the latter in re'fuse bags or sites.
The use of such alkali-sensitive film in disposable diapers may provide for full flushability of the latter down toilet bowls.
In summary, therefore, the present .invention provides for the quick and safe (in terms of health and pollution) disintegration of disposable articles made from, or incorporating, alkali-dissolvable film or non-woven material in an alkali environment.

Claims

1. A disposable article formed of a film or non-woven material which is inherently, or treated to be, alkali dissolvable or degradable.
2. A disposable article formed of, or treated with, acrylic copolymer resin or polyacrylic esters.
3. A disposable article as claimed in 'claim 2 in which the acrylic copolymer resin or polyacrylic ester is applied by coating, or integration with the disposable article during manufacture of same.
4. A disposable article as claimed in claim 3 in which the integration is effected by a co-extrusion process or a moulding process.
5. A disposable article as claimed in any one of claims 1 to 4 forming a sanitary article as hereinbefore defined, or part of such a sanitary article.
6. A disposable article as claimed in any one of claims 1 to 4 forming a packaging material.
7. A disposable article as claimed in any one of claims 1 to 4 forming an article of clothing, or part of an article of clothing.
8. A sanitary article including or consisting of a disposable sheet or layer constituted by a film of non- woven material which is inherently, or treated to be, alkali dissolvable or degradable.
9. A sanitary article as claimed in claim 8 in the form of a disposable diaper comprising a detachable, inner, next-to-body liner, preferably of non-woven material, having an alkali-disintegratable nature.
10. A sanitary article as claimed in claim 8 in the form of a liner for a child's potty or for a bedpan and formed of an alkali sensitive film or an alkali- disintegratable non-woven material shaped to conform with the inner configuration of the potty or bedpan.
11. A sanitary article as claimed in claim 9 in which the liner is in the form of an open-topped bag to receive and contain excreted body waste matter.
12. A sanitary article as claimed in any one of claims 8 to 11 in which the disposable sheet, layer or liner is disposed of into a toilet bowl or other receptacle containing water or other liquid having sufficiently high alkali pH value, naturally or enhanced.
13. A method of disposing of a sanitary article", or liner therefor, in a non-health risk manner, the method comprising the steps of forming the sanitary article, or liner therefor, of an alkali-sensitive film or an alkali- disintegratable non-woven material, and disposing of the sanitary article, or liner therefor, into a toilet bowl or other receptacle containing water or other liquid either of a sufficiently high alkali pH value, or treated with an alkali pH adjuster to provide a sufficiently high alkali pH value to cause disintegration of the soiled sanitary article, or liner therefor.
14. A method as claimed in claim 13 in which the pH alkali value is 7.5 or more, and is preferably within the range 7.5 to 10.00.
15. A method as claimed in claim 13 or 14 comprising the step, when necessary, of enhancing the liquid pH alkali value to 7.5 or more by adding thereto a alkali pH adjuster.
16. A method as claimed in claim 15, in which the alkali pH adjuster is in the form of a toilet block, a tablet, a pellet, a capsule or liquid solution.
17. A method as claimed in claim 15 or 16 in which the alkali pH adjuster is one or more of alkali salts such, for example, as sodium carbonate, or caustic cleaners such, for example, as sodium or potassium hydroxide, or domestic bleach type formulations such, for example, as sodium hypochlorite, or detergents with alkali additive such, for example, as triethanolamine or ammonia.
18. A method as claimed in any one of claims 15 to 17 in which the alkali pH adjuster comprises a pH colour indicator whereby a visible indication will be given that the liquid or water has a sufficiently high pH alkali value for disintegration to occur
PCT/GB1989/001141 1988-09-28 1989-09-27 Disposable sanitary articles WO1990003156A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB888822736A GB8822736D0 (en) 1988-09-28 1988-09-28 Disposable diapers
GB8822736.8 1988-09-28

Publications (1)

Publication Number Publication Date
WO1990003156A1 true WO1990003156A1 (en) 1990-04-05

Family

ID=10644371

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1989/001141 WO1990003156A1 (en) 1988-09-28 1989-09-27 Disposable sanitary articles

Country Status (5)

Country Link
EP (1) EP0436619A1 (en)
JP (1) JPH04502712A (en)
AU (1) AU4342089A (en)
GB (1) GB8822736D0 (en)
WO (1) WO1990003156A1 (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5405342A (en) * 1991-12-31 1995-04-11 Kimberly-Clark Corporation Disposable absorbent article with flushable insert
WO1995016474A1 (en) * 1993-12-16 1995-06-22 Kimberly-Clark Corporation Flushable compositions
WO1995017216A1 (en) * 1993-12-20 1995-06-29 The Procter & Gamble Company pH-MODIFIED POLYMER COMPOSITIONS WITH ENHANCED BIODEGRADABILITY
WO1997018784A1 (en) * 1995-11-22 1997-05-29 The Procter & Gamble Company Water dispersible and flushable absorbent article
US5681299A (en) * 1991-11-19 1997-10-28 Ecoprogress Limited Disposable article
US5722966A (en) * 1995-11-22 1998-03-03 The Procter & Gamble Company Water dispersible and flushable absorbent article
US5849374A (en) * 1995-09-28 1998-12-15 Cargill, Incorporated Compostable multilayer structures, methods for manufacture, and articles prepared therefrom
US5849401A (en) * 1995-09-28 1998-12-15 Cargill, Incorporated Compostable multilayer structures, methods for manufacture, and articles prepared therefrom
AU749405B2 (en) * 1995-11-22 2002-06-27 Procter & Gamble Company, The Water dispersible and flushable absorbent article
US6514602B1 (en) 2000-03-07 2003-02-04 The Procter & Gamble Company Water-flushable and biodegradable film useful as backsheets for disposable absorbent articles
US6814974B2 (en) 2000-05-04 2004-11-09 Kimberly-Clark Worldwide, Inc. Ion-sensitive, water-dispersible polymers, a method of making same and items using same
US6828014B2 (en) 2001-03-22 2004-12-07 Kimberly-Clark Worldwide, Inc. Water-dispersible, cationic polymers, a method of making same and items using same
US6835678B2 (en) 2000-05-04 2004-12-28 Kimberly-Clark Worldwide, Inc. Ion sensitive, water-dispersible fabrics, a method of making same and items using same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2536935B2 (en) * 1989-10-05 1996-09-25 ユニ・チャーム株式会社 Disposable diapers

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1572721A (en) * 1967-06-22 1969-06-27
FR2000556A1 (en) * 1968-01-22 1969-09-12 Celanese Corp
US3756232A (en) * 1969-11-12 1973-09-04 K Noguchi Sanitary napkins disposable in water closet bowl with the use of alkaline agent
US4062451A (en) * 1974-09-12 1977-12-13 Johnson & Johnson Laminated structures comprising films of silane crosslinked acrylate interpolymers having water barrier properties

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1572721A (en) * 1967-06-22 1969-06-27
FR2000556A1 (en) * 1968-01-22 1969-09-12 Celanese Corp
US3756232A (en) * 1969-11-12 1973-09-04 K Noguchi Sanitary napkins disposable in water closet bowl with the use of alkaline agent
US4062451A (en) * 1974-09-12 1977-12-13 Johnson & Johnson Laminated structures comprising films of silane crosslinked acrylate interpolymers having water barrier properties

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5613959A (en) * 1991-09-03 1997-03-25 Kimberly-Clark Corporation Disposable absorbent article with flushable insert
US5681299A (en) * 1991-11-19 1997-10-28 Ecoprogress Limited Disposable article
US5476457A (en) * 1991-12-31 1995-12-19 Kimberly-Clark Corporation Disposable absorbent article with flushable insert
US5405342A (en) * 1991-12-31 1995-04-11 Kimberly-Clark Corporation Disposable absorbent article with flushable insert
US5458591A (en) * 1991-12-31 1995-10-17 Kimberly-Clark Corporation Disposable absorbent article with flushable insert
WO1995016474A1 (en) * 1993-12-16 1995-06-22 Kimberly-Clark Corporation Flushable compositions
US5509913A (en) * 1993-12-16 1996-04-23 Kimberly-Clark Corporation Flushable compositions
WO1995017216A1 (en) * 1993-12-20 1995-06-29 The Procter & Gamble Company pH-MODIFIED POLYMER COMPOSITIONS WITH ENHANCED BIODEGRADABILITY
US6312823B1 (en) 1995-09-28 2001-11-06 Cargrill, Incorporated Compostable multilayer structures, methods for manufacture and articles prepared therefrom
US5849374A (en) * 1995-09-28 1998-12-15 Cargill, Incorporated Compostable multilayer structures, methods for manufacture, and articles prepared therefrom
US5849401A (en) * 1995-09-28 1998-12-15 Cargill, Incorporated Compostable multilayer structures, methods for manufacture, and articles prepared therefrom
US5722966A (en) * 1995-11-22 1998-03-03 The Procter & Gamble Company Water dispersible and flushable absorbent article
WO1997018784A1 (en) * 1995-11-22 1997-05-29 The Procter & Gamble Company Water dispersible and flushable absorbent article
AU749405B2 (en) * 1995-11-22 2002-06-27 Procter & Gamble Company, The Water dispersible and flushable absorbent article
US6514602B1 (en) 2000-03-07 2003-02-04 The Procter & Gamble Company Water-flushable and biodegradable film useful as backsheets for disposable absorbent articles
US6814974B2 (en) 2000-05-04 2004-11-09 Kimberly-Clark Worldwide, Inc. Ion-sensitive, water-dispersible polymers, a method of making same and items using same
US6835678B2 (en) 2000-05-04 2004-12-28 Kimberly-Clark Worldwide, Inc. Ion sensitive, water-dispersible fabrics, a method of making same and items using same
US6828014B2 (en) 2001-03-22 2004-12-07 Kimberly-Clark Worldwide, Inc. Water-dispersible, cationic polymers, a method of making same and items using same

Also Published As

Publication number Publication date
JPH04502712A (en) 1992-05-21
AU4342089A (en) 1990-04-18
GB8822736D0 (en) 1988-11-02
EP0436619A1 (en) 1991-07-17

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