US3844287A - Absorbent mass of alloy fibers of regenerated cellulose and polyacrylic acid salt of alkali-metals or ammonium - Google Patents

Absorbent mass of alloy fibers of regenerated cellulose and polyacrylic acid salt of alkali-metals or ammonium Download PDF

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Publication number
US3844287A
US3844287A US00259944A US25994472A US3844287A US 3844287 A US3844287 A US 3844287A US 00259944 A US00259944 A US 00259944A US 25994472 A US25994472 A US 25994472A US 3844287 A US3844287 A US 3844287A
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US
United States
Prior art keywords
fibers
polyacrylic acid
ammonium
metals
regenerated cellulose
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.)
Expired - Lifetime
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US00259944A
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English (en)
Inventor
F Smith
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.)
FMC Corp
Original Assignee
FMC Corp
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 FMC Corp filed Critical FMC Corp
Priority to US00259944A priority Critical patent/US3844287A/en
Priority to SE7306473A priority patent/SE403706B/xx
Priority to GB2204373A priority patent/GB1430634A/en
Priority to DE2324589A priority patent/DE2324589C3/de
Priority to CA171,486A priority patent/CA987894A/en
Priority to AT473273A priority patent/AT331993B/de
Priority to NL7307655.A priority patent/NL162304C/xx
Priority to JP6205673A priority patent/JPS5430236B2/ja
Priority to IT25046/73A priority patent/IT1019544B/it
Priority to BE131863A priority patent/BE800435A/xx
Priority to ES415534A priority patent/ES415534A1/es
Priority to FR7320230A priority patent/FR2187947B1/fr
Application granted granted Critical
Publication of US3844287A publication Critical patent/US3844287A/en
Priority to US05/608,304 priority patent/USRE30029E/en
Assigned to KELLOGG CREDIT CORPORATION A DE CORP. reassignment KELLOGG CREDIT CORPORATION A DE CORP. AGREEMENT WHEREBY SAID HELLER AND RAYONIER RELEASES ALL MORTGAGES AND SECURITY INTERESTS HELD BY AVTEX ON APRIL 28, 1978, AND JAN. 11, 1979, RESPECTIVELY AND ASSIGNS ITS ENTIRE INTEREST IN SAID MORT-AGAGE AGREEMENT TO ASSIGNEE (SEE RECORD FOR DETAILS) Assignors: AVTEX FIBERS INC., A NY CORP., ITT RAYONIER INCORPORATED, A DE CORP., WALTER E. HELLER & COMPANY, INC. A NY CORP.
Assigned to WALTER E. HELLER & COMPANY, INC., A CORP. OF DEL. reassignment WALTER E. HELLER & COMPANY, INC., A CORP. OF DEL. AGREEMENT WHEREBY AETNA RELEASES AVTEX FROM ALL MORTAGES AND SECURITY INTERESTS IN SAID INVENTIONS AS OF JANUARY 11,1979, AND ASSIGNS TO ASSIGNEE THE ENTIRE INTEREST IN SAID MORTAGE AGREEMENT TO ASSIGNEE (SEE RECORDS FOR DETAILS). Assignors: AETNA BUSINESS CREDIT, INC., A CORP. OF N.Y., AVTEX FIBERS, INC, A CORP. OF NY, KELLOGG CREDIT CORP., A CORP. OF DEL.
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • A61L15/60—Liquid-swellable gel-forming materials, e.g. super-absorbents
    • 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
    • A61L15/225—Mixtures of macromolecular compounds
    • 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
    • A61L15/50—Lubricants; Anti-adhesive agents
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D1/00—Treatment of filament-forming or like material
    • D01D1/02—Preparation of spinning solutions
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F2/00—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof
    • D01F2/06—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from viscose
    • D01F2/08—Composition of the spinning solution or the bath
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/44—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds
    • D01F6/52—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds of polymers of unsaturated carboxylic acids or unsaturated esters
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S604/00—Surgery
    • Y10S604/904—Tampons

Definitions

  • the alloy fibers are prepared by mixing an aqueous solution of sodium polyacrylate or aqueous solution of sodium hydroxide and polyacrylic acid with viscose at any stage of ripening, forming the mixture into fibers, coagulating and regenerating the fibers, and drying the fibers in the alkaline state.
  • the fibers are coagulated and regenerated in an acid bath, washed, finished by application of an aqueous alkaline finish composition for cellulose, and dried.
  • These fibers are now alkaline and cardable, and are prepared in a conventional manner into articles for absorbing body fluids.
  • Sodium polyacrylate solutions or polyacrylic acid emulsions are readily commercially available and need not be described in detail.
  • the solutions which are mixed with the viscose preferably have solids concentrations of from about 2.5 to about 42 I3 percent.
  • Sodium hydroxide is added to polyacrylic acid emulsions to obtain the sodium polyacrylate solutions.
  • the filament-forming viscose used herein is also well known and need not be described in detail.
  • alkali cellulose is reacted with carbon disulfide and the resulting sodium cellulose xanthate is diluted with sodium hydroxide to produce the viscose which is aged to spinning viscosity.
  • Additives or modifiers may be mixed with the viscose, if desired.
  • the alloy fiber which is formed predominantly from viscose is coagulated and regenerated by known means and preferably in an acid bath containing sulfuric acid and sodium sulfate.
  • Zinc sulfate is often incorporated in the bath as well as other coagulation modifiers, as desired.
  • the sodium polyacrylate solution may be mixed with the viscose will preferably range from about 6 to about lOpercent based on the weight of the viscose solution.
  • the mixture may be run through a blender or homogenizer to assure a thorough mix, if desired.
  • the mixture is then pumped to the spinneret and extruded in the form of fibers into a coagulating medium. After coagulation and at least partial regeneration, the fibers are stretched, if desired, conventionally wet processed and treated with an aqueous lubricating finish composition.
  • the fibers are then dried to an alkaline, cardable product.
  • the sodium polyacrylate containing viscose during processing into fibers is alternately in the alkaline state, the neutralized state and the alkaline state.
  • the sodium polyacrylate is neutralized.
  • the wet gel fibers are made alkaline preferably in the finish bath. An alkaline bath preceding the finish bath may also be used, if desired.
  • the aqueous alkaline lubricating finish is preferably a bath containing an aqueous solution of sodium carbonate and sorbitan monolaurate, however, other alkaline agents and lubricating agents may be employed as taught in the art for ordinary rayon yarn.
  • finishes for cellulose fibers include partial higher fatty acid esters of sorbitan or mannitan and their polyoxyethylene derivatives, sodium oleate and oleic acid.
  • alkaline agents for alkalizing the fibers include dibasic ammonium phosphate, dibasic sodium phosphate, tribasic sodium phosphate, sodium tetraborate and the like.
  • the fiber is usually cut in the form of staple before drying, dried and shipped to the manufacturer of the absorbent articles.
  • the absorbent articles may require carding of the fibers which is accomplished in the usual manner without difficulty.
  • the fibers are formed into the tampon in accordance with any desired procedure. They may be blended with any other fibers which may or may not serve to enhance the properties of the absorbent articles. Some fibers with which the alloy fibers of this invention may be blended include rayon, cotton, chemically modified rayon or cotton, cellulose acetate, nylon, polyester, acrylic, polyolefin and similar fibers.
  • the fluid holding capacity of the alloy fibers of this invention was determined in accordance with the following procedure.
  • Sample staple fibers are carded or well opened, conditioned and two grams placed in a 1 inch diameter die.
  • the fibers in the die are then pressed to 0.127 inches the viscose at any stage of the viscose ripening. Con- I thickness for one minute, removed and placed on a porous plate (e.g., a Buchner funnel) so that the 1 inch diameter foot of a plunger weighing 2.4 pounds rests on the test pellet. (The plunger is held in a vertical position and is free to move vertically).
  • the pellet is then wetted with water which flows into the funnel from the stem which is connected by a flexible tube to a dropping bot tle, the flow of water being controlled by the position of the dropping bottle. After two minutes immersion, the water is drained for three minutes, the wet pellet is removed and weighed.
  • the fluid holding capacity of the fibers in cc./g. is one-half the weight of water in the test pellet.
  • the viscose composition was 9.0 percent cellulose, 6.0 percent sodium hydroxide and 32 percent carbon disulfide, based on the weight of the cellulose.
  • the viscose ball fall was 70 and its common salt test was 8.
  • the mixture was spun through a 720 hole spinneret into an aqueous spinning bath consisting of 7.5 percent by weight of sulfuric acid, 18 percent by weight of sodium sulfate and 3.5 percent by weight of zinc sulfate.
  • the alloy fibers passed through the bath and were washed with water, desulfurized and washed again with water.
  • the wet gel fibers were then passed through an alkaline finish bath consisting of 1 percent by weight of sodium carbonate and 1 percent by weight of sorbitan monolaurate (Span 20). The fibers were cut, dried and carded.
  • the fluid holding capacity was tested for fibers having different amounts of sodium polyacrylate in the alloy fibers in the previously described test procedure. The results are set forth in the following table along with results for other fibers prepared as above except that these alloy fibers were prepared with polyacrylic acid without the formation of the sodium salt in the dried fiber product.
  • polyacrylate salts of other alkalimetals such as potassium and lithium, and ammonium are also included and may be successfuly used to replace sodium polyacrylate in the example.
  • An article of manufacture comprising a highly fluid absorbent mass of alloy fibers, said alloy fibers comprising a matrix of regenerated cellulose and polyacrylic acid salt of alkali-metals or ammonium uniformly dispersed therein.

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Public Health (AREA)
  • Hematology (AREA)
  • Materials Engineering (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Textile Engineering (AREA)
  • Veterinary Medicine (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Artificial Filaments (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Nonwoven Fabrics (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Woven Fabrics (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
US00259944A 1972-06-05 1972-06-05 Absorbent mass of alloy fibers of regenerated cellulose and polyacrylic acid salt of alkali-metals or ammonium Expired - Lifetime US3844287A (en)

Priority Applications (13)

Application Number Priority Date Filing Date Title
US00259944A US3844287A (en) 1972-06-05 1972-06-05 Absorbent mass of alloy fibers of regenerated cellulose and polyacrylic acid salt of alkali-metals or ammonium
SE7306473A SE403706B (sv) 1972-06-05 1973-05-08 Torr alkalisk legeringsfiber, utgorande grundelement i en fibermassa med hoggradig formaga att absorbera vetskor, vilken fiber innehaller recellulosa och dari likformigt dispergeratett polyakrylsyrasalt, ---
GB2204373A GB1430634A (en) 1972-06-05 1973-05-09 Fibres of regenerated cellulose and polyacrylic acid salt of alkali-metals
DE2324589A DE2324589C3 (de) 1972-06-05 1973-05-16 Verwendung von trockenen Mischfasern zur Herstellung von Tampons
CA171,486A CA987894A (en) 1972-06-05 1973-05-16 Absorbent mass or alloy fibers of regenerated cellulose and polyacrylic acid salt of alkali-metals or ammonium
AT473273A AT331993B (de) 1972-06-05 1973-05-29 Hochsaugfahiges material und verfahren zu seiner herstellung
NL7307655.A NL162304C (nl) 1972-06-05 1973-06-01 Sterk vloeistofabsorberende massa.
IT25046/73A IT1019544B (it) 1972-06-05 1973-06-04 Fibre di lega assorbenti e manu fatti realizzati con esse
JP6205673A JPS5430236B2 (enrdf_load_stackoverflow) 1972-06-05 1973-06-04
BE131863A BE800435A (fr) 1972-06-05 1973-06-04 Masse d'absorption de fluides
ES415534A ES415534A1 (es) 1972-06-05 1973-06-04 Un metodo de preparacion de fibras de mezcla a base de una masa altamente absorbente de fluidos.
FR7320230A FR2187947B1 (enrdf_load_stackoverflow) 1972-06-05 1973-06-04
US05/608,304 USRE30029E (en) 1972-06-05 1975-08-27 Absorbent mass of alloy fibers of regenerated cellulose and polyacrylic acid salt of alkali-metals or ammonium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00259944A US3844287A (en) 1972-06-05 1972-06-05 Absorbent mass of alloy fibers of regenerated cellulose and polyacrylic acid salt of alkali-metals or ammonium

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US05/608,304 Reissue USRE30029E (en) 1972-06-05 1975-08-27 Absorbent mass of alloy fibers of regenerated cellulose and polyacrylic acid salt of alkali-metals or ammonium

Publications (1)

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US3844287A true US3844287A (en) 1974-10-29

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US00259944A Expired - Lifetime US3844287A (en) 1972-06-05 1972-06-05 Absorbent mass of alloy fibers of regenerated cellulose and polyacrylic acid salt of alkali-metals or ammonium
US05/608,304 Expired - Lifetime USRE30029E (en) 1972-06-05 1975-08-27 Absorbent mass of alloy fibers of regenerated cellulose and polyacrylic acid salt of alkali-metals or ammonium

Family Applications After (1)

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US05/608,304 Expired - Lifetime USRE30029E (en) 1972-06-05 1975-08-27 Absorbent mass of alloy fibers of regenerated cellulose and polyacrylic acid salt of alkali-metals or ammonium

Country Status (12)

Country Link
US (2) US3844287A (enrdf_load_stackoverflow)
JP (1) JPS5430236B2 (enrdf_load_stackoverflow)
AT (1) AT331993B (enrdf_load_stackoverflow)
BE (1) BE800435A (enrdf_load_stackoverflow)
CA (1) CA987894A (enrdf_load_stackoverflow)
DE (1) DE2324589C3 (enrdf_load_stackoverflow)
ES (1) ES415534A1 (enrdf_load_stackoverflow)
FR (1) FR2187947B1 (enrdf_load_stackoverflow)
GB (1) GB1430634A (enrdf_load_stackoverflow)
IT (1) IT1019544B (enrdf_load_stackoverflow)
NL (1) NL162304C (enrdf_load_stackoverflow)
SE (1) SE403706B (enrdf_load_stackoverflow)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4063558A (en) * 1975-11-07 1977-12-20 Avtex Fibers Inc. Article and method for making high fluid-holding fiber mass
US4177236A (en) * 1976-07-20 1979-12-04 Akzona Inc. Process for producing regenerated cellulose containing cross linked sodium lignate or sodium lignosulfonate
US4215212A (en) * 1979-04-09 1980-07-29 Akzona Incorporated Regenerated cellulose containing cross linked sodium lignate or sodium lignosulfonate
US4263244A (en) * 1978-01-26 1981-04-21 Akzona Incorporated Process for spinning regenerated cellulose fibers containing an alloying polymer
US4336299A (en) * 1978-06-24 1982-06-22 Hoechst Aktiengesellschaft Use of modified cellulose hydrate fibers in the manufacture of bonded non-woven fabrics and products prepared in this manner
USRE31380E (en) * 1975-11-07 1983-09-13 Avtex Fibers Inc. Rayon fibers containing starch
US4575376A (en) * 1983-11-07 1986-03-11 International Playtex Method for increasing the absorbency of cellulosic fibers
US5998695A (en) * 1998-06-29 1999-12-07 The Procter & Gamble Company Absorbent article including ionic complexing agent for feces
US5998025A (en) * 1995-10-30 1999-12-07 Uni-Charm Corporation Water-retentive cellulose fiber, method of manufacturing the same, and water-retentive sheet comprising cellulose fiber of high water retentivity
US6018093A (en) * 1998-06-29 2000-01-25 The Procter & Gamble Company Absorbent article including a calcium-based feces modification agent
US6639119B2 (en) 1998-06-29 2003-10-28 The Procter & Gamble Company Absorbent article including a reducing agent for feces
US20070219479A1 (en) * 2006-03-20 2007-09-20 Tasbas Hedy E Tampon applicator for insertion of a lubricated tampon
WO2014201484A1 (de) 2013-06-17 2014-12-24 Lenzing Ag Hochsaugfähige polysaccharidfaser und ihre verwendung
US10030323B2 (en) 2013-04-05 2018-07-24 Lenzing Aktiengesellschaft Method for the production of polysaccharide fibers with an increased fibrillation tendency
US10196758B2 (en) 2013-06-18 2019-02-05 Lenzing Aktiengesellschaft Polysaccharide fibers and method for producing same
US10221502B2 (en) 2013-04-05 2019-03-05 Lenzing Aktiengesellschaft Polysaccharide fibers and method for the production thereof

Families Citing this family (19)

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Publication number Priority date Publication date Assignee Title
DE2634994C3 (de) * 1975-08-11 1980-09-25 Akzo Gmbh, 5600 Wuppertal Celluloseregeneratfasern mit eingelagertem Acrylpolymerisat und hoher Absorptionsfähigkeit
NZ191703A (en) * 1978-10-05 1981-12-15 Unilever Ltd Absorbent material surface treated with aliphatic hydrocarbon or nonionic derivative thereof
US4273118A (en) * 1979-06-04 1981-06-16 Avtex Fibers Inc. Fibers of high fluid holding capacity
US4399255A (en) 1980-12-22 1983-08-16 Avtex Fibers Inc. Alloy rayon fibers of regenerated cellulose and copolymeric acrylic acid salts
EP0075791B1 (de) * 1981-09-30 1986-04-09 VEB Leipziger Arzneimittelwerk Absorbierender Wundverband und Verfahren zu seiner Herstellung
US4689118A (en) 1985-07-22 1987-08-25 Personal Products Company Cross-linked pore containing microfibrillated cellulose prepared by freezing and solvent exchange
ES2053566T5 (es) 1986-11-20 2000-06-01 Ciba Spec Chem Water Treat Ltd Productos absorbentes y su fabricacion.
DE3782315T2 (de) * 1986-11-20 1993-04-08 Allied Colloids Ltd Absorbierende produkte und deren herstellung.
US5280079A (en) 1986-11-20 1994-01-18 Allied Colloids Limited Absorbent products and their manufacture
GB8910788D0 (en) * 1989-05-10 1989-06-28 Allied Colloids Ltd Absorbent products and their manufacture
FR2614027B1 (fr) * 1987-04-14 1989-08-18 Hoechst France Polymere hydrophile a base d'acide acrylique et d'acrylate de metal alcalin, son procede de preparation et son application comme agent absorbant, en particulier d'une solution physiologique
US5550189A (en) * 1992-04-17 1996-08-27 Kimberly-Clark Corporation Modified polysaccharides having improved absorbent properties and process for the preparation thereof
US6168585B1 (en) 1993-12-15 2001-01-02 Kimberely-Clark Worldwide, Inc. Disposable training pant with elastically suspended absorbent assembly
US5849210A (en) * 1995-09-11 1998-12-15 Pascente; Joseph E. Method of preventing combustion by applying an aqueous superabsorbent polymer composition
US6565981B1 (en) 1999-03-30 2003-05-20 Stockhausen Gmbh & Co. Kg Polymers that are cross-linkable to form superabsorbent polymers
US20030155679A1 (en) * 2001-12-31 2003-08-21 Reeves William G. Method of making regenerated carbohydrate foam compositions
US20030143388A1 (en) * 2001-12-31 2003-07-31 Reeves William G. Regenerated carbohydrate foam composition
US20030125683A1 (en) * 2001-12-31 2003-07-03 Reeves William G. Durably hydrophilic, non-leaching coating for hydrophobic substances
GB2439928A (en) 2006-07-13 2008-01-16 Ethicon Inc Hydrogel wound dressings exhibiting reduced fiber losses

Citations (6)

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Publication number Priority date Publication date Assignee Title
US2993018A (en) * 1958-01-28 1961-07-18 Files De Calais Production of coloured filaments, threads and the like from viscose
US3187747A (en) * 1962-03-05 1965-06-08 Johnson & Johnson Surgical absorbent pad having ion exchange properties
US3628534A (en) * 1969-02-10 1971-12-21 Tampax Inc Catamenial tampon and method
US3669103A (en) * 1966-05-31 1972-06-13 Dow Chemical Co Absorbent product containing a hydrocelloidal composition
US3670731A (en) * 1966-05-20 1972-06-20 Johnson & Johnson Absorbent product containing a hydrocolloidal composition
US3686024A (en) * 1970-02-24 1972-08-22 Dow Chemical Co Process of making a water-absorbent coated article and resultant product

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Publication number Priority date Publication date Assignee Title
US2901813A (en) * 1953-10-20 1959-09-01 American Viscose Corp Textile material of regenerated cellulose containing a polyacrylamide
US3241553A (en) * 1962-08-27 1966-03-22 Johnson & Johnson Surgical dressing

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2993018A (en) * 1958-01-28 1961-07-18 Files De Calais Production of coloured filaments, threads and the like from viscose
US3187747A (en) * 1962-03-05 1965-06-08 Johnson & Johnson Surgical absorbent pad having ion exchange properties
US3670731A (en) * 1966-05-20 1972-06-20 Johnson & Johnson Absorbent product containing a hydrocolloidal composition
US3669103A (en) * 1966-05-31 1972-06-13 Dow Chemical Co Absorbent product containing a hydrocelloidal composition
US3628534A (en) * 1969-02-10 1971-12-21 Tampax Inc Catamenial tampon and method
US3686024A (en) * 1970-02-24 1972-08-22 Dow Chemical Co Process of making a water-absorbent coated article and resultant product

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4063558A (en) * 1975-11-07 1977-12-20 Avtex Fibers Inc. Article and method for making high fluid-holding fiber mass
USRE31380E (en) * 1975-11-07 1983-09-13 Avtex Fibers Inc. Rayon fibers containing starch
US4177236A (en) * 1976-07-20 1979-12-04 Akzona Inc. Process for producing regenerated cellulose containing cross linked sodium lignate or sodium lignosulfonate
US4263244A (en) * 1978-01-26 1981-04-21 Akzona Incorporated Process for spinning regenerated cellulose fibers containing an alloying polymer
US4336299A (en) * 1978-06-24 1982-06-22 Hoechst Aktiengesellschaft Use of modified cellulose hydrate fibers in the manufacture of bonded non-woven fabrics and products prepared in this manner
US4215212A (en) * 1979-04-09 1980-07-29 Akzona Incorporated Regenerated cellulose containing cross linked sodium lignate or sodium lignosulfonate
US4575376A (en) * 1983-11-07 1986-03-11 International Playtex Method for increasing the absorbency of cellulosic fibers
US5998025A (en) * 1995-10-30 1999-12-07 Uni-Charm Corporation Water-retentive cellulose fiber, method of manufacturing the same, and water-retentive sheet comprising cellulose fiber of high water retentivity
US6248444B1 (en) * 1995-10-30 2001-06-19 Uni-Charm Corporation Water-retentive cellulose fiber, method of manufacturing the same, and water-retentive sheet comprising cellulose fiber of high water retentivity
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US10221502B2 (en) 2013-04-05 2019-03-05 Lenzing Aktiengesellschaft Polysaccharide fibers and method for the production thereof
WO2014201484A1 (de) 2013-06-17 2014-12-24 Lenzing Ag Hochsaugfähige polysaccharidfaser und ihre verwendung
US10220111B2 (en) 2013-06-17 2019-03-05 Lenzing Aktiengesellschaft Highly absorbent polysaccharide fiber and use thereof
US10196758B2 (en) 2013-06-18 2019-02-05 Lenzing Aktiengesellschaft Polysaccharide fibers and method for producing same

Also Published As

Publication number Publication date
NL7307655A (enrdf_load_stackoverflow) 1973-12-07
CA987894A (en) 1976-04-27
BE800435A (fr) 1973-10-01
JPS4961988A (enrdf_load_stackoverflow) 1974-06-15
GB1430634A (en) 1976-03-31
IT1019544B (it) 1977-11-30
AT331993B (de) 1976-09-10
ATA473273A (de) 1975-12-15
JPS5430236B2 (enrdf_load_stackoverflow) 1979-09-28
USRE30029E (en) 1979-06-12
DE2324589B2 (de) 1977-11-24
NL162304C (nl) 1980-05-16
ES415534A1 (es) 1976-03-01
FR2187947B1 (enrdf_load_stackoverflow) 1977-09-30
FR2187947A1 (enrdf_load_stackoverflow) 1974-01-18
NL162304B (nl) 1979-12-17
DE2324589C3 (de) 1985-04-04
SE403706B (sv) 1978-09-04
DE2324589A1 (de) 1974-01-10

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Free format text: AGREEMENT WHEREBY AETNA RELEASES AVTEX FROM ALL MORTAGES AND SECURITY INTERESTS IN SAID INVENTIONS AS OF JANUARY 11,1979, AND ASSIGNS TO ASSIGNEE THE ENTIRE INTEREST IN SAID MORTAGE AGREEMENT TO ASSIGNEE;ASSIGNORS:AETNA BUSINESS CREDIT, INC., A CORP. OF N.Y.;AVTEX FIBERS, INC, A CORP. OF NY;KELLOGG CREDIT CORP., A CORP. OF DEL.;REEL/FRAME:003959/0250

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Free format text: AGREEMENT WHEREBY SAID HELLER AND RAYONIER RELEASES ALL MORTGAGES AND SECURITY INTERESTS HELD BY AVTEX ON APRIL 28, 1978, AND JAN. 11, 1979, RESPECTIVELY AND ASSIGNS ITS ENTIRE INTEREST IN SAID MORT-AGAGE AGREEMENT TO ASSIGNEE;ASSIGNORS:WALTER E. HELLER & COMPANY, INC. A NY CORP.;ITT RAYONIER INCORPORATED, A DE CORP.;AVTEX FIBERS INC., A NY CORP.;REEL/FRAME:003959/0350

Effective date: 19800326