CA2049055A1 - Biodegradable superabsorbing sponge - Google Patents

Biodegradable superabsorbing sponge

Info

Publication number
CA2049055A1
CA2049055A1 CA2049055A CA2049055A CA2049055A1 CA 2049055 A1 CA2049055 A1 CA 2049055A1 CA 2049055 A CA2049055 A CA 2049055A CA 2049055 A CA2049055 A CA 2049055A CA 2049055 A1 CA2049055 A1 CA 2049055A1
Authority
CA
Canada
Prior art keywords
biodegradable
superabsorbing
sponge
superabsorber
cross
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
Application number
CA2049055A
Other languages
French (fr)
Other versions
CA2049055C (en
Inventor
Donald F. H. Wallach
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Micro Vesicular Systems Inc
Original Assignee
Donald F. H. Wallach
Micro Vesicular Systems, Inc.
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 Donald F. H. Wallach, Micro Vesicular Systems, Inc. filed Critical Donald F. H. Wallach
Publication of CA2049055A1 publication Critical patent/CA2049055A1/en
Application granted granted Critical
Publication of CA2049055C publication Critical patent/CA2049055C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • 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
    • A61L15/28—Polysaccharides or their derivatives
    • 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
    • A61L15/60—Liquid-swellable gel-forming materials, e.g. super-absorbents
    • 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
    • A61F13/15252—Properties of the article, e.g. stiffness or absorbency compostable or biodegradable
    • 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
    • A61F13/53—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 absorbing medium
    • A61F2013/530481—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 absorbing medium having superabsorbent materials, i.e. highly absorbent polymer gel materials
    • A61F2013/530583—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 absorbing medium having superabsorbent materials, i.e. highly absorbent polymer gel materials characterized by the form
    • A61F2013/530649—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 absorbing medium having superabsorbent materials, i.e. highly absorbent polymer gel materials characterized by the form in sponge or foam
    • 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
    • A61F13/53—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 absorbing medium
    • A61F2013/530481—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 absorbing medium having superabsorbent materials, i.e. highly absorbent polymer gel materials
    • A61F2013/530795—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 absorbing medium having superabsorbent materials, i.e. highly absorbent polymer gel materials being biodegradable
    • 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
    • A61F13/53—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 absorbing medium
    • A61F13/534—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 absorbing medium having an inhomogeneous composition through the thickness of the pad
    • A61F2013/53481—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 absorbing medium having an inhomogeneous composition through the thickness of the pad being biodegradable
    • 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
    • A61F13/84—Accessories, not otherwise provided for, for absorbent pads
    • A61F13/8405—Additives, e.g. for odour, disinfectant or pH control
    • A61F2013/8438—Additives, e.g. for odour, disinfectant or pH control being enzymes, e.g. proteolysis, cellulase
    • 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
    • A61F13/84—Accessories, not otherwise provided for, for absorbent pads
    • A61F13/8405—Additives, e.g. for odour, disinfectant or pH control
    • A61F2013/8447—Additives, e.g. for odour, disinfectant or pH control in using different incompatible substances
    • A61F2013/8452—Additives, e.g. for odour, disinfectant or pH control in using different incompatible substances being contained in microcapsules

Abstract

Abstract of the Invention new superabsorber which gels and cross-links as hydrated has been developed. The superabsorber contains a branched-chain polyanionic carbohydrate such as carboxymethylcellulose,a cross-linking agent, and a hydrophobic carboxylic acid. The superabsorber is biodegradable and non-toxic.
CA002049055A 1989-03-09 1990-03-08 Biodegradable superabsorbing sponge Expired - Fee Related CA2049055C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US320,944 1989-03-09
US07/320,944 US4959341A (en) 1989-03-09 1989-03-09 Biodegradable superabsorbing sponge

Publications (2)

Publication Number Publication Date
CA2049055A1 true CA2049055A1 (en) 1990-09-10
CA2049055C CA2049055C (en) 1994-07-05

Family

ID=23248525

Family Applications (2)

Application Number Title Priority Date Filing Date
CA002049054A Abandoned CA2049054A1 (en) 1989-03-09 1990-03-08 Particulate absorbent material
CA002049055A Expired - Fee Related CA2049055C (en) 1989-03-09 1990-03-08 Biodegradable superabsorbing sponge

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CA002049054A Abandoned CA2049054A1 (en) 1989-03-09 1990-03-08 Particulate absorbent material

Country Status (10)

Country Link
US (1) US4959341A (en)
EP (2) EP0462178B1 (en)
JP (2) JPH0720547B2 (en)
KR (1) KR920700020A (en)
AU (2) AU627014B2 (en)
BR (2) BR9007212A (en)
CA (2) CA2049054A1 (en)
DE (1) DE69003810T2 (en)
WO (2) WO1990010495A1 (en)
ZA (2) ZA901853B (en)

Families Citing this family (77)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5269979A (en) * 1988-06-08 1993-12-14 Fountain Pharmaceuticals, Inc. Method for making solvent dilution microcarriers
US5510117A (en) * 1989-03-09 1996-04-23 Micro-Pak, Inc. Entrapment vehicle and method
US4959341A (en) * 1989-03-09 1990-09-25 Micro Vesicular Systems, Inc. Biodegradable superabsorbing sponge
US5049395A (en) * 1989-03-09 1991-09-17 Micro Vesicular Systems, Inc. Controlled release vehicle
US5234621A (en) * 1989-03-09 1993-08-10 Micro Vesicular Systems, Inc. Rinse-free shampoo containing cross-linked carboxymethylcellulose
US5252340A (en) * 1989-12-14 1993-10-12 Isolyser Company, Inc. Method of producing an absorbent composition
US5871679A (en) * 1991-04-10 1999-02-16 Isolyser Company, Inc. Method of producing hot water soluble garments and like fabrics
US6048410A (en) * 1991-04-10 2000-04-11 Isolyser Company, Inc. Method of disposal of hot water soluble garments and like fabrics
US5650219A (en) * 1991-04-10 1997-07-22 Isolyser Co. Inc. Method of disposal of hot water soluble garments and like fabrics
CA2073292C (en) † 1991-10-25 2004-06-29 Xin Ning Carboxyalkyl polysaccharides having improved absorbent properties and process for the preparation thereof
DE4206857C2 (en) * 1992-03-05 1996-08-29 Stockhausen Chem Fab Gmbh Polymer composition, absorbent material composition, their production and use
DE4206850C2 (en) * 1992-03-05 1996-08-29 Stockhausen Chem Fab Gmbh Polymer compositions, preparation of polymer compositions, in particular absorption materials and their use
DE4206856C2 (en) * 1992-03-05 1996-08-29 Stockhausen Chem Fab Gmbh Polymer composition, absorbent material composition, their preparation and use
CA2076732C (en) † 1992-04-17 2006-05-09 Kimberly-Clark Worldwide, Inc. Modified polysaccharides having improved absorbent properties and process for the preparation thereof
US5620786A (en) * 1993-04-29 1997-04-15 Isolyser Co. Inc. Hot water soluble towels, sponges and gauzes
US5885907A (en) * 1993-04-29 1999-03-23 Isolyser Company, Inc. Method of disposal of hot water soluble garments and like fabrics
SK281991B6 (en) * 1993-05-03 2001-09-11 Chemische Fabrik Stockhausen Gmbh Polymeric composition, composition containing active substance, their production method and use
DE4318094B4 (en) * 1993-06-01 2004-03-04 Stockhausen Gmbh & Co. Kg Superabsorbents, processes for their preparation and their use
EP0674920A1 (en) * 1994-03-31 1995-10-04 Bio-Sep Inc. Process and apparatus for digesting solid waste
US5470653A (en) * 1994-08-05 1995-11-28 Isolyser Company, Inc. Disposable mop heads
US5661217A (en) * 1994-08-05 1997-08-26 Isolyser Company, Inc. Method of manufacturing monolithic structures from polyvinyl alcohol
US5563179A (en) * 1995-01-10 1996-10-08 The Proctor & Gamble Company Absorbent foams made from high internal phase emulsions useful for acquiring and distributing aqueous fluids
US5849805A (en) * 1995-01-10 1998-12-15 The Procter & Gamble Company Process for making foams useful as absorbent members for catamenial pads
US5650222A (en) * 1995-01-10 1997-07-22 The Procter & Gamble Company Absorbent foam materials for aqueous fluids made from high internal phase emulsions having very high water-to-oil ratios
MY132433A (en) * 1995-01-10 2007-10-31 Procter & Gamble Foams made from high internal phase emulsions useful as absorbent members for catamenial pads
US5618554A (en) * 1995-06-07 1997-04-08 Kimberly-Clark Corporation Inhibition of exoprotein using amine compositions in absorbent article and method thereof
US5612045A (en) * 1995-06-07 1997-03-18 Kimberly-Clark Corporation Inhibition of exoprotein in absorbent article
US5685872A (en) * 1995-06-07 1997-11-11 Kimberly-Clark Worldwide, Inc. Inhibition of exoprotein using amide compositions in absorbent article
US5770634A (en) * 1995-06-07 1998-06-23 The Procter & Gamble Company Foam materials for insulation, derived from high internal phase emulsions
US5633291A (en) * 1995-06-07 1997-05-27 The Procter & Gamble Company Use of foam materials derived from high internal phase emulsions for insulation
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
US5707731A (en) * 1996-05-09 1998-01-13 Isolyser Company, Inc. Disposable cleaning articles
US5806668A (en) * 1996-07-01 1998-09-15 Bixby; Steven H. Containment, collection and disposal device
WO1998010861A1 (en) * 1996-09-11 1998-03-19 The Procter & Gamble Company Modified porous starch
US5891812A (en) * 1996-10-11 1999-04-06 Isolyser Company, Inc. Liquid absorbable non-permeable fabrics and methods of making, using, and disposing thereof
US5844007A (en) * 1996-10-21 1998-12-01 No Touch North America Lustering and protecting agent for rubber, vinyl, and the like
WO1998025999A1 (en) * 1996-12-13 1998-06-18 Japan Absorbent Technology Institute Highly absorbent composite compositions, absorbent sheets provided with the compositions, and process for producing the same
WO1998058686A1 (en) * 1997-06-24 1998-12-30 SCA Mölnlycke AB Absorbent polymer material based on renewable starting materials
US6083211A (en) * 1998-03-13 2000-07-04 The Procter & Gamble Company High suction polymeric foam materials
US6013589A (en) * 1998-03-13 2000-01-11 The Procter & Gamble Company Absorbent materials for distributing aqueous liquids
US6160028A (en) * 1998-07-17 2000-12-12 The Procter & Gamble Company Flame retardant microporous polymeric foams
US6245697B1 (en) 1998-11-12 2001-06-12 The Procter & Gamble Company Flexible mat for absorbing liquids comprising polymeric foam materials
US6794557B1 (en) 1999-07-16 2004-09-21 Associated Hygienic Products Llc Disposable absorbent article employing an absorbent composite and method of making the same
US7893225B2 (en) * 2001-01-31 2011-02-22 Seikagaku Corporation Crosslinked polysaccharide sponge
DE10125599A1 (en) 2001-05-25 2002-11-28 Stockhausen Chem Fab Gmbh Super-absorbent polymer powder for use in e.g. diapers, packaging and soil improvers, obtained by pre-swelling polycarboxy-polysaccharide in water and then drying and surface-crosslinking resulting hydrogel
AU2003213459A1 (en) * 2002-03-14 2003-09-22 Nippon Shinyaku Co., Ltd External medicine for wounds
US20040087564A1 (en) * 2002-10-31 2004-05-06 Wright D. Craig Delivery composition and method
EP1559315A1 (en) * 2004-01-28 2005-08-03 Stephen Marshall Sorbent additive and composition
US20060246186A1 (en) * 2005-04-28 2006-11-02 Nowak Michael J Polycarboxylated polymer, method of making, method of use, and superabsorbent compositions including the same
JP2008541197A (en) * 2005-05-18 2008-11-20 アイ セイフティ システムズ インコーポレイテッド Goggles with removable frame, method for making the goggles and method for using the goggles
KR101329658B1 (en) * 2006-09-25 2013-11-14 아처 다니엘 미드랜드 캄파니 Superabsorbent surface-treated carboxyalkylated polysaccharides and process for producing same
US7625463B2 (en) 2006-10-02 2009-12-01 Weyerhaeuser Nr Company Methods for the preparation of fibrous superabsorbent composite containing cellulose
US7785710B2 (en) 2006-10-02 2010-08-31 Weyerhaeuser Nr Company Superabsorbent particles containing carboxyalkyl cellulose and temporary metal crosslinks
US20080079188A1 (en) * 2006-10-02 2008-04-03 Weyerhaeuser Co. Methods for the preparation of mixed polymer superabsorbent fibers
US20080078514A1 (en) * 2006-10-02 2008-04-03 Weyerhaeuser Co. Methods for the preparation of cellulose fibers having superabsorbent particles adhered thereto
US20080081165A1 (en) * 2006-10-02 2008-04-03 Weyerhaeuser Co. Fibrous superabsorbent composite containing cellulose
US7717995B2 (en) * 2006-10-02 2010-05-18 Weyerhaeuser Nr Company Methods for the preparation of mixed polymer superabsorbent fibers containing cellulose
US7645806B2 (en) * 2006-10-02 2010-01-12 Weyerhaeuser Nr Company Methods for the preparation of superabsorbent particles containing carboxyalkyl cellulose
US20080082065A1 (en) * 2006-10-02 2008-04-03 Weyerhaeuser Co. Mixed polymer superabsorbent fibers containing cellulose
FR2917292B1 (en) * 2007-06-18 2014-06-13 Centre Nat Rech Scient USE OF A HEMOGLOBIN FOR THE PREPARATION OF DRESSINGS, AND DRESSINGS THUS PREPARED
US7749317B2 (en) 2007-06-25 2010-07-06 Weyerhaeuser Nr Company Fibrous blend and method of making
US7591891B2 (en) * 2007-06-25 2009-09-22 Weyerhaeuser Nr Company Fibrous blend and methods of preparation
JP5680817B2 (en) * 2008-03-31 2015-03-04 ユニ・チャーム株式会社 Absorber that forms crosslinks upon absorption
US8084391B2 (en) * 2008-06-30 2011-12-27 Weyerhaeuser Nr Company Fibers having biodegradable superabsorbent particles attached thereto
US7959762B2 (en) * 2008-06-30 2011-06-14 Weyerhaeuser Nr Company Method for making biodegradable superabsorbent particles
US8101543B2 (en) * 2008-06-30 2012-01-24 Weyerhaeuser Nr Company Biodegradable superabsorbent particles
US7833384B2 (en) * 2008-06-30 2010-11-16 Weyerhaeuser Nr Company Method for making fiber having biodegradable superabsorbent particles attached thereto
US20090325797A1 (en) * 2008-06-30 2009-12-31 Weyerhaeuser Co. Biodegradable Superabsorbent Particles
US8641869B2 (en) * 2008-06-30 2014-02-04 Weyerhaeuser Nr Company Method for making biodegradable superabsorbent particles
US20090326180A1 (en) * 2008-06-30 2009-12-31 Weyerhaeuser Co. Biodegradable Superabsorbent Particles Containing Cellulose Fiber
CA2752919C (en) * 2009-02-20 2016-09-06 Archer Daniels Midland Company Acidic gas permeated carboxyalkyl starch particles, extrudates, and process for making the same
GB2492171A (en) * 2011-06-24 2012-12-26 Sca Hygiene Prod Ab Sanitary articles comprising biodegradable plastic and Bacillus spores
CN103240065B (en) * 2013-05-03 2015-06-03 大连理工大学 Elastic hydrophobic material and synthetic method as well as application thereof
CN107249651A (en) * 2015-02-27 2017-10-13 大日精化工业株式会社 Medical material and adherence preventing material
WO2016136886A1 (en) * 2015-02-27 2016-09-01 大日精化工業株式会社 Medical/cosmetic material and adhesion preventing material
US20180000994A1 (en) * 2015-02-27 2018-01-04 Dainichiseika Color & Chemicals Mfg. Co., Ltd. Method for manufacturing medical material, medical material, and anti-adhesion material
US20210290452A1 (en) * 2020-03-20 2021-09-23 Tethis, Inc. Systems and methods for treating an article including a biodegradable superabsorbent material

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3741894A (en) * 1967-06-15 1973-06-26 Exxon Production Research Co Chemically modified organic polymers
US4160063A (en) * 1973-11-16 1979-07-03 Shell Oil Company Method for preventing the adherence of oil to surfaces
US4090013A (en) * 1975-03-07 1978-05-16 National Starch And Chemical Corp. Absorbent composition of matter
GB1453279A (en) * 1975-03-07 1976-10-20 Johnson & Son Inc S C Solid air freshener gels
NZ191703A (en) * 1978-10-05 1981-12-15 Unilever Ltd Absorbent material surface treated with aliphatic hydrocarbon or nonionic derivative thereof
SU779473A1 (en) * 1978-12-21 1980-11-15 Центральный научно-исследовательский институт бумаги Paper pulp production method
CA1152483A (en) * 1979-04-23 1983-08-23 John H.C. Windust Absorbent materials
JPS56155203A (en) * 1980-04-30 1981-12-01 Kuraray Co Ltd Production of carboxyl group-containing polymer material
US4454055A (en) * 1980-08-25 1984-06-12 National Starch And Chemical Corporation Absorbent composition of matter, process for preparing same and article prepared therefrom
US4486335A (en) * 1982-08-30 1984-12-04 Hercules Incorporated Carboxymethyl hydroxyethyl cellulose composition
US4610678A (en) * 1983-06-24 1986-09-09 Weisman Paul T High-density absorbent structures
US4548847A (en) * 1984-01-09 1985-10-22 Kimberly-Clark Corporation Delayed-swelling absorbent systems
JPS60226832A (en) * 1984-04-02 1985-11-12 Daicel Chem Ind Ltd Separating agent containing polysaccharide fatty acid ester
JPS63152667A (en) * 1986-08-22 1988-06-25 Kao Corp Water-absorptive resin with high stability
DE8712723U1 (en) * 1986-12-08 1987-12-17 Hanfspinnerei Steen & Co Gmbh, 2000 Hamburg, De
US4826880B1 (en) * 1987-09-21 2000-04-25 Johnson & Johnson Inc Immobilizing particulate absorbents by conversion to hydrates
FR2620914B1 (en) * 1987-09-25 1991-11-08 Oreal SHEET MATERIAL FOR PERFORMING SKIN OR HAIR TREATMENT, METHOD FOR MANUFACTURING SAME, AND ARTICLES MADE THEREOF
US4944734A (en) * 1989-03-09 1990-07-31 Micro Vesicular Systems, Inc. Biodegradable incontinence device with embedded granules
US4952550A (en) * 1989-03-09 1990-08-28 Micro Vesicular Systems, Inc. Particulate absorbent material
US4959341A (en) * 1989-03-09 1990-09-25 Micro Vesicular Systems, Inc. Biodegradable superabsorbing sponge

Also Published As

Publication number Publication date
CA2049054A1 (en) 1990-09-10
CA2049055C (en) 1994-07-05
EP0462178A1 (en) 1991-12-27
DE69003810D1 (en) 1993-11-11
DE69003810T2 (en) 1994-05-05
AU5284190A (en) 1990-10-09
EP0462178A4 (en) 1992-06-03
EP0593421A1 (en) 1994-04-27
KR920700020A (en) 1992-02-19
ZA901853B (en) 1991-08-28
US4959341A (en) 1990-09-25
WO1990010426A1 (en) 1990-09-20
BR9007212A (en) 1992-03-24
JP2651952B2 (en) 1997-09-10
AU627014B2 (en) 1992-08-13
JPH0720547B2 (en) 1995-03-08
AU5267690A (en) 1990-10-09
EP0462178B1 (en) 1993-10-06
JPH04504978A (en) 1992-09-03
ZA901923B (en) 1991-05-29
EP0593421A4 (en) 1993-04-30
JPH04504969A (en) 1992-09-03
WO1990010495A1 (en) 1990-09-20
AU624695B2 (en) 1992-06-18
BR9007210A (en) 1992-02-18

Similar Documents

Publication Publication Date Title
CA2049055A1 (en) Biodegradable superabsorbing sponge
GB2268885B (en) Wound dressing
AU581806B2 (en) Aqueous self curing polymer blends
AU4798290A (en) High performance memory system
AU5845890A (en) Thickened and gelled systems based on starch and glucomannan
AU565184B2 (en) Universal memory
CA2011171A1 (en) Biodegradable Poly (Phosphate Esters)
AU569350B2 (en) Peroxy coated seeds
CA2159055A1 (en) Compositions containing polyanionic polysaccharides and hydrophobic bioabsorbable polymers
AU4276893A (en) Absorbent polymer having reduced dusting tendencies
AU3229584A (en) Virtually addressed cache
AU5463896A (en) Crosslinked carboxyalkyl polysaccharides having improved absorbent properties
AU8641782A (en) Surgical device from poly dioxanone polymer
EP0612253A4 (en) Adhesive hydrogels having extended use lives and process for the preparation of same.
AU2613184A (en) Modified carbohydrate polymers
AU556045B2 (en) Alkaline protease api-21 from bacillus
AU622694B2 (en) Press felt conditioner for neutral and alkaline papermaking systems
GB2253545B (en) Universal radio with adaptive memory
CA2204888A1 (en) Absorbent material
GB2210884B (en) Granules based on hydrophilic polymers on which an aqueous formulation, containing one or more active principles, is absorbed
AU7930691A (en) An aqueous tiecoat composition
AU8654391A (en) Biodegradable gel
AU2710684A (en) Treating starch with an organosiloxane polymer
GB8406637D0 (en) Aqueous polymer solutions
GB8405091D0 (en) Aqueous polymer dispersions

Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed