EP0249606A1 - Procede de preparation d'une composition absorbant les liquides - Google Patents
Procede de preparation d'une composition absorbant les liquidesInfo
- Publication number
- EP0249606A1 EP0249606A1 EP86906854A EP86906854A EP0249606A1 EP 0249606 A1 EP0249606 A1 EP 0249606A1 EP 86906854 A EP86906854 A EP 86906854A EP 86906854 A EP86906854 A EP 86906854A EP 0249606 A1 EP0249606 A1 EP 0249606A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- superabsorbent
- sugar
- mixture
- preparation
- composition
- 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.)
- Pending
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
- A61L15/20—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing organic materials
-
- 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
- A61F2013/00361—Plasters
- A61F2013/00727—Plasters means for wound humidity control
- A61F2013/00748—Plasters means for wound humidity control with hydrocolloids or superabsorbers
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/249921—Web or sheet containing structurally defined element or component
- Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
- Y10T428/249982—With component specified as adhesive or bonding agent
- Y10T428/249985—Composition of adhesive or bonding component specified
Definitions
- the invention relates to a method for preparing an absorbent composition which finds in particular an application in the absorption of physiological fluids: urine, wound secretions, blood, etc. .
- This composition can be used as a dressing in the treatment of wounds or as an additive in hygienic articles for single use, in particular feminine hygiene.
- the absorbent products to which reference is made below are polymers, in the form of hydrophilic macromolecules and practically insoluble in water, which swell in the presence of the liquid until they take on the consistency of a gel.
- These superabsorbents also called hydrogels, hydroretentors or additives with improved retention, abbreviated as ARA, are solids thus capable of gelling 10 to 1000 times their weight of liquid.
- the gels obtained have the property of not easily desorbing fluids when they are under pressure and the mass is deformed. For this reason, superabsorbents find numerous applications in agriculture for water retention, and in the field of hygiene for the absorption of physiological liquids such as urine and blood where they are used as an additive.
- absorbent masses fibrous masses, generally of cellulose foam, constituting the diapers, diapers, periodic towels and pads. They are also found in the medical field for the treatment of wounds.
- the best known products are alginates, cross-linked carboxymethyl cellulose, grafted starches, synthetic derivatives of the acrylamide type or of the acrylate type.
- the absorption capacity can be divided by 10 when changing from pure water to salt water; the same goes for the gel setting speed which is greatly reduced. This is a handicap in an application for a baby diaper, for example. Indeed, if during urination is not absorbed quickly enough, which may result in fluid leaking out of the exchange.
- the subject of the invention is the preparation of an absorbent composition from any superabsorbent, having improved qualities compared to the corresponding superabsorbent or else, presenting qualities at least as good but the cost of which is always lower or whose efficiency / price ratio is improved.
- the absorbent composition can be used in particular for absorbing physiological liquids, as an additive in single-use hygiene articles, in particular feminine hygiene or as a dressing in the treatment of wounds, it is prepared from a superabsorbent and at least one oligosaccharide chosen from disaccharides such as sucrose, lactose, maltose, cellobiose, monosaccharides such as glucose or fructose, higher sugars, glucose syrups.
- the invention applies to all known superabsorbents but in particular it has been shown to give significant results with superabsorbents of the acrylate type.
- the superabsorbent can be chosen from a large class of products, these are inorganic (silicates%) Or organic compounds. nics capable of absorbing and then retaining a liquid even under moderate pressure.
- organic compounds include alginates, guars, agaragar, carrageenans and other compounds extracted from natural products; cellulose derivatives including cross-linked carboxymethyl cellulose (example: AKUCELL from EN KA - AKZO / HOL-LANDE), hydroxyethylcelluloses, non-ionic products insensitive to saline solutions; starch derivatives such as polyacrylate starches (example: SANWET from SANYO CHEMICAL / JAPON); synthetic polyacrylates (examples: AQUAKEEP from SEITETSU / JAPON or LUQUASORB from BASF / GERMANY, obtained by a reverse suspension process, AQUALIC from NI PPON SHOKOBAI / JAPON and FAVOR from S
- these macromolecules are slightly crosslinked to make them swellable but insoluble in aqueous solutions. They are crosslinked by heat (self-crosslinking), by covalent, ionic bond (di- or trivalent salts), Van der Waals or hydro ⁇ gene bond.
- the sugar used will preferably be sucrose for its ease of processing and its better bacteriological stability compared to a simple sugar, but other sugars are also suitable.
- the composition is obtained by wet mixing.
- This is a surprising result of the sugar syrup-superabsorbent synergy. Indeed, taking into account the obvious water-superabsorbent interactions, the methods of implementation of the latter avoid the liquid and more particularly aqueous phases.
- the composition can be easily obtained by incorporating the superabsorbent in a concentrated solution of sugar, in particular sucrose.
- Such syrups of 60 to 80 Brix, or even pastry fondants represent liquid solvent media, in which water very strongly linked to sugar molecules, sees its thermodynamic activity decreased. Under these conditions, the water-superabsorbent interactions are completely modified and it is possible to produce homogeneous pseudo-solutions of superabsorbent and sugar which gelling only after a certain contact time.
- All the mono- and / or disaccharide may not be provided by the concentrated solution.
- a portion is provided in the form of a powder and is incorporated into the mixture either at the same time as the superabsorbent or during mixing. This variant allows better control of the viscosity.
- additives can be added to the mixture before or during the kneading phase in order to give it specific activities: zinc oxides, enzymes, amino acids, organic or mineral acids or salts, vitamins, antibiotics ticks, antimicrobials, surfactants. It is also possible to add natural or synthetic textile fibers which will increase the speed of absorption of the liquid in the mixture, by capillarity.
- the mixture without addition of plasticizer, obtained after drying, is very hard and abrasive. It can be crushed, - crushed, sieved to the proper granulometry.
- plasticizers or solvents with controlled content to facilitate technological implementation or use such as glycerin, polyethylene glycol or isopropyl alcohol for example provide plastic masses which at 40 or 50 ° C can be laminated, extruded, laminated on a film or a textile canvas or plastic, cold ground. . . .
- plasticizers or solvents with controlled content such as glycerin, polyethylene glycol or isopropyl alcohol for example provide plastic masses which at 40 or 50 ° C can be laminated, extruded, laminated on a film or a textile canvas or plastic, cold ground. . . .
- products are obtained which, when cold, are characterized by a residual plasticity, which is particularly desirable for treating wounds.
- the absorbent composition finds application as an additive in disposable hygiene articles where it is incorporated in absorbent masses generally consisting of fibers, in particular cellulose foam, so as to improve their absorbency.
- the composition will preferably comprise at least 15% of superabsorbent.
- composition finds particular application as an absorbent dressing for the treatment of wounds by the sugar it contains.
- the absorbent composition allows a simpler implementation of the treatment by the action of the superabsorbent which gels and fixes the exudates with greater efficiency. It leads to the formation of a compact mass. This mass, which can be easily removed, makes it easier to clean the wounds and change the dressings. It therefore improves patient comfort and speed of care.
- the mixture preferably comprise between 1% and 30% of superabsorbent to obtain maximum therapeutic effectiveness.
- This method of preparation can be illustrated by the following example.
- a pure sucrose syrup at 80 Brix and hot enough not to recrystallize ie for 500 g of syrup, 400 g of sugar and 100 g of water.
- the hot syrup is poured into a mixer (for example of the Guedu type) with a heated double jacket, comprising a Z-shaped propeller.
- a plasticizer can be added (in our example 37.5 g of glycerol) which contributes to reducing the viscosity of the medium as well as the activity of the water.
- the superabsorbent is added at once, that is to say in our example 50 g of product sold under the brand SANWET, referenced IM1000, by SANYO CHEMICAL / JAPON. In a few seconds a thick, translucent, slightly sticky mass is obtained.
- sugar in our example we pour 1 00 g of icing sugar not starchy. The propeller of the mixer is left to rotate for a few seconds until a homogeneous, non-sticky plastic block is obtained.
- the block can be extruded through a die or laminated in the form of a plate on a marble, or pressed between the jaws of a hydraulic press.
- the product is then dried, for example in an oven, until a dry matter content of between 85% and 98% and preferably from 92% to 96% is obtained.
- a preferred form of the invention consists in making a mixture based on sugar and superabsorbent and in coating it on a textile support. After drying in an oven, a flexible composite is obtained which can be cut mechanically and used as a wound dressing.
- the method allows the homogeneous incorporation of chemical or pharmaceutical products useful for the treatment of wounds:
- surfactants up to about 0.2% of the total mass.
- enzymes in particular proteases, amino acids, organic or mineral acids or their salts, vitamins, antibiotics, antimicrobials, bacteriostats, colorings, perfumes, etc. .
- a plasticizer may be, in proportion to the total mass, of:
- polyvinyl alcohol up to about 10%
- polyvinyl-pyrrolidone up to about 15%
- polyethylene glycol up to about 10%
- liquid polyols up to about 10%
- the sugar used is preferably sucrose but it may itself contain other types of sugar, for example a glucose syrup between 0 and 15%, sorbitol, between 0 and 10, lactose,. . .
- the preparation process according to the invention can also be implemented so as to allow continuous production of the absorbent composition.
- An extruder is used for this purpose, which can be of the twin-screw type. Is introduced at regular rate, between the screws of the extruder, the sugar syrup saturated at 60-80 Brix, added with a certain amount of plasticizer, glycerol for example.
- the superabsorbent powder dry mixed with icing sugar, is introduced simultaneously into the feed hopper.
- the residence time of the mixture inside the extruder is between 15 and 60 seconds. Heating elements can be provided to facilitate plasticization and controlling the viscosity, however, the latter must not be reduced to a 'point where the product becomes too fluid.
- a homogeneous mixture is obtained which can be rolled by passing between cylinders, and then associated with any support.
- a mono- or multi-hole die can be adapted to the downstream end of the extruder to obtain the product in the form of filaments.
- a suitable heating device by infrared radiation, or microwave, can be provided to bring it to the desired dryness rate.
- This method makes it possible to evaluate the retention capacity of a liquid by a superabsorbent. For 30 minutes, a periodic towel containing 0.5 grams of pure superabsorbent dispersed in varying amounts of sugar and possibly additives is immersed in the liquid. After centrifugation at 1100 gravities for 60 seconds, the quantity of liquid absorbed by the sample is calculated by difference between the absorption of a control towel without sample and that of the towel containing the sample. The retention R30 is expressed in grams of liquid absorbed per gram of superabsorbent.
- the gel setting method is a measure of the speed and maximum absorption capacity of a superabsorbent gel.
- a 150 ml beaker (diameter 55 mm) containing 100 ml of the test liquid at a given temperature, stirred by a magnetic bar (length 45 mm, 0 8 mm) in rotation at 600 rpm, one instantly pours a determined mass of sample and the time after which the vortex disappears is measured. Tests are carried out successively with variable sample weights.
- the absorption by taking-in gel is a function of time according to an experimental law of the type:
- a regression calculator selects the best correlation element based on assumptions about the value of G. It allows you to select the optimal values of the coefficients G, Vo and to which characterize the gel setting.
- sucrose and AQUAKEEP superabsorbent were made.
- the mixtures are dried in a vacuum oven, then ground and sieved. The 100 - 500 micron fraction is tested.
- the performance of the pure superabsorbent is maintained.
- the absence of synergy with, salt water shows that the synergy with the blood is not linked to a phenomenon of physical accessibility of liquid on the sample.
- the R30 retention measures in salt water are characteristic of the superaborbent and of its content in the sample.
- Table 1b brings together the values of g, Vo, To for different mixtures respectively for salt water, PLASMION and blood formula C, recorded during the gel setting test carried out at 35 ° C.
- sucrose and a superabsorbent were prepared, respectively a polyacrylate starch sold under the brand SANWET, a synthetic polyacrylate obtained by a process in aqueous solution sold under the AQUALIC brand, a crosslinked thyl cellulose carboxyme ⁇ sold under the AKUCELL brand, a synthetic polyacry ⁇ late obtained by a reverse suspension process sold under the LUQUASORB brand, and a second synthetic acrylate obtained by a process in aqueous solution sold under the FAVOR brand.
- SANWET polyacrylate starch sold under the brand SANWET
- a synthetic polyacrylate obtained by a process in aqueous solution sold under the AQUALIC brand a crosslinked thyl cellulose carboxyme ⁇ sold under the AKUCELL brand
- a synthetic polyacry ⁇ late obtained by a reverse suspension process sold under the LUQUASORB brand
- glycerol, isopropanol and polyethylene-giycol corresponds to the 1st objective.
- Table 3b shows that up to 6.5% of glycerol can be incorporated into the sucrose-AQUAKEEP (see products 4 and 5 compared to product 3) and sucrose-SANWET (see products 1 1 and 12 relative to product 10 and product 13 relative to product 14) maintaining the blood retention levels of the compound without additive.
- Table 3c shows an increase in the theoretical gelling power G, for blood and salt water, as in the previous examples.
- Product No. 5 in particular, in the form of granules or sheets, meets the specifications for absorption capacity for use in the treatment of wounds in hospital or home environments.
- isopropanol can be incorporated up to 8% (see n ° 19 compared to n ° 3 and n ° 20 compared to n ° 10), the glycerol-isopropanol mixture up to a total of 9% (n ° 9 compared to n ° 3, n ° 16 compared to n ° 10) and polyethylene glycol up to 8% (n ° 21 -23 compared to n ° 3, n ° 22-24 by compared to No. 1 0) without appreciably affecting the performance of the corresponding sucrose-superabsorbent associations.
- additives having a curative action such as: zinc oxides, acids with detergent, antiseptic or biochemical action (for example lactic acid, sorbic acid, boric), vitamin and other healing agents, biological or vegetable extracts, amino acids, povidone or other antiseptics, sulfonamides, antibiotics, surfactants, etc. . have no apparent effect on the performance of simple sucrose-superabsorbent associations when one remains within the usual levels recommended by the pharmacopoeia.
- a curative action such as: zinc oxides, acids with detergent, antiseptic or biochemical action (for example lactic acid, sorbic acid, boric), vitamin and other healing agents, biological or vegetable extracts, amino acids, povidone or other antiseptics, sulfonamides, antibiotics, surfactants, etc. . have no apparent effect on the performance of simple sucrose-superabsorbent associations when one remains within the usual levels recommended by the pharmacopoeia.
- a particularly advantageous embodiment of the invention consists in adding to the mixture a protease, the effects of which are specifically to be expected in the treatment of wounds and blood.
- Composition n ° 29 corresponds to this formula and manifests an enhanced activity compared to product n ° 10. It will be noted that during the manufacturing process, the maintenance at 70% of the proteolytic power of the enzyme used has been observed. departure.
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- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Materials Engineering (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Hematology (AREA)
- Engineering & Computer Science (AREA)
- Veterinary Medicine (AREA)
- Dispersion Chemistry (AREA)
- Materials For Medical Uses (AREA)
- Medicinal Preparation (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8517361A FR2590501B1 (fr) | 1985-11-22 | 1985-11-22 | Composition absorbant les liquides |
FR8517361 | 1985-11-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0249606A1 true EP0249606A1 (fr) | 1987-12-23 |
Family
ID=9325110
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP86906854A Pending EP0249606A1 (fr) | 1985-11-22 | 1986-11-21 | Procede de preparation d'une composition absorbant les liquides |
EP86402603A Expired - Lifetime EP0227526B1 (fr) | 1985-11-22 | 1986-11-21 | Pansement pour le traitement des plaies et procédé de préparation |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP86402603A Expired - Lifetime EP0227526B1 (fr) | 1985-11-22 | 1986-11-21 | Pansement pour le traitement des plaies et procédé de préparation |
Country Status (9)
Country | Link |
---|---|
US (1) | US4883478A (fr) |
EP (2) | EP0249606A1 (fr) |
JP (1) | JPS63501689A (fr) |
AT (1) | ATE56366T1 (fr) |
DE (1) | DE3674170D1 (fr) |
ES (1) | ES2017471B3 (fr) |
FR (1) | FR2590501B1 (fr) |
GR (1) | GR3001151T3 (fr) |
WO (1) | WO1987003208A1 (fr) |
Families Citing this family (75)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ATE131075T1 (de) * | 1989-06-28 | 1995-12-15 | James River Corp | Superabsorbierender wundverband. |
US5360419A (en) * | 1989-12-08 | 1994-11-01 | Kimberly-Clark Corporation | Absorbent structure possessing improved integrity |
DE4029591C2 (de) * | 1990-09-19 | 1995-01-26 | Stockhausen Chem Fab Gmbh | Verfahren zur Herstellung von Absorptionsmaterial auf Polymerbasis mit Zusatz von wasserlöslichen Substanzen und Verwendung dieses Absorptionsmaterials zur Aufnahme und/oder zur nachfolgenden Abgabe von Wasser oder wäßrigen Lösungen |
US5807364A (en) * | 1992-08-17 | 1998-09-15 | Weyerhaeuser Company | Binder treated fibrous webs and products |
US5800417A (en) * | 1995-12-12 | 1998-09-01 | Goerg-Wood; Kristin Ann | Absorbent composition comprising hydrogel-forming polymeric material and fiber bundles |
US6033684A (en) * | 1996-08-28 | 2000-03-07 | Jonor, Inc. | Compositions and methods for wound management |
US6060636A (en) * | 1996-09-04 | 2000-05-09 | Kimberly-Clark Worldwide, Inc. | Treatment of materials to improve handling of viscoelastic fluids |
US6716435B1 (en) * | 1997-04-18 | 2004-04-06 | Ganeden Biotech, Inc. | Absorbent product containing absorbent structure and Bacillus coagulans |
US6010444A (en) * | 1997-09-05 | 2000-01-04 | Isolyser Company, Inc. | Infectious waste containment system |
US6261679B1 (en) * | 1998-05-22 | 2001-07-17 | Kimberly-Clark Worldwide, Inc. | Fibrous absorbent material and methods of making the same |
US6387495B1 (en) | 1999-04-16 | 2002-05-14 | Kimberly-Clark Worldwide, Inc. | Superabsorbent-containing composites |
US6376011B1 (en) | 1999-04-16 | 2002-04-23 | Kimberly-Clark Worldwide, Inc. | Process for preparing superabsorbent-containing composites |
US6322724B1 (en) * | 2000-01-05 | 2001-11-27 | Isp Investments Inc. | Products for controlling evaporative moisture loss and methods of manufacturing the same |
SE518097C2 (sv) * | 2000-10-03 | 2002-08-27 | Ellen Ab | Förfarande för framställning av en absorberande sanitetsartikel som innefattar mjölksyraproducerande bakterier samt sådant alster |
JP2002113041A (ja) * | 2000-10-11 | 2002-04-16 | Uni Charm Corp | 皮膚常在菌をコントロールする吸収性物品 |
US6676957B1 (en) | 2000-11-28 | 2004-01-13 | Kimberly-Clark Worldwide, Inc. | Non-absorbent substrates for the inhibition of exoprotein production from gram positive bacteria |
US6656913B1 (en) | 2000-11-28 | 2003-12-02 | Kimberly-Clark Worldwide, Inc. | Inhibition of exoprotein production from gram positive bacteria |
US6599521B1 (en) | 2000-11-28 | 2003-07-29 | Kimberly-Clark Worldwide, Inc. | Absorbent articles for the inhibition of exoprotein production from Gram positive bacteria |
US6531435B1 (en) | 2000-11-28 | 2003-03-11 | Kimberly-Clark Worldwide, Inc. | Compositions for the inhibition of exoprotein production from Gram positive bacteria |
US8084046B2 (en) | 2001-10-02 | 2011-12-27 | Kimberly-Clark Worldwide, Inc. | Inhibition of exoprotein production in absorbent articles using isoprenoids |
US7022333B2 (en) | 2001-10-02 | 2006-04-04 | Kimberly-Clark Worldwide, Inc. | Inhibition of exoprotein production in non-absorbent articles uisng aromatic compositions |
US6534548B1 (en) | 2001-10-02 | 2003-03-18 | Kimberly-Clark Worldwide, Inc. | Isoprenoid compositions for the inhibition of exoprotein production from gram positive bacteria |
US7026354B2 (en) | 2001-10-02 | 2006-04-11 | Kimberly-Clark Worldwide, Inc. | Aromatic compositions for the inhibition of exoprotein production from gram positive bacteria |
US6596290B2 (en) | 2001-10-02 | 2003-07-22 | Kimberly-Clark Worldwide, Inc. | Inhibition of exoprotein production in non-absorbent articles using isoprenoid compositions |
DE10231356B4 (de) † | 2002-07-11 | 2007-02-15 | Stockhausen Gmbh | Wasserabsorbierende, schaumförmige Polymergebilde, Verfahren zu deren Herstellung, deren Verwendung sowie daraus hergestellte Verbunde |
AU2003270605A1 (en) * | 2002-09-12 | 2004-04-30 | Bj Services Company | Compositions for thermal insulation and methods of using the same |
GB0225761D0 (en) * | 2002-11-05 | 2002-12-11 | Univ Bradford | Polymeric materials |
US20050133181A1 (en) * | 2003-12-22 | 2005-06-23 | Weyerhaeuser Company | Paper product and method of making |
US20050133182A1 (en) * | 2003-12-22 | 2005-06-23 | Weyerhaeuser Company | Paper product and method of making field |
US20080066838A1 (en) * | 2006-09-08 | 2008-03-20 | Ping Zhang | Carbon black-rich rubber composition containing particulate hydrophylic water absorbing polymer and tire with tread thereof |
EP2083874A4 (fr) * | 2006-11-17 | 2012-02-15 | Sca Hygiene Prod Ab | Article absorbant |
BRPI0622142A2 (pt) * | 2006-11-17 | 2014-05-06 | Sca Hygiene Prod Ab | Artigo absorvente |
GB0810404D0 (en) * | 2008-06-06 | 2008-07-09 | Manuka Medical Ltd | Compositions |
DE102010004478A1 (de) * | 2010-01-12 | 2011-07-14 | Riesinger, Birgit, 48346 | Neue Technologien zur Verwendung in Wundauflagen mit superabsorbierenden Polymeren |
KR101871968B1 (ko) | 2015-06-01 | 2018-06-27 | 주식회사 엘지화학 | 고흡수성 수지 |
KR101949454B1 (ko) | 2015-06-15 | 2019-02-18 | 주식회사 엘지화학 | 고흡수성 수지 |
KR101949995B1 (ko) | 2015-07-06 | 2019-02-19 | 주식회사 엘지화학 | 고흡수성 수지의 제조 방법 및 이로부터 제조된 고흡수성 수지 |
KR101855351B1 (ko) | 2015-08-13 | 2018-05-04 | 주식회사 엘지화학 | 고흡수성 수지의 제조 방법 |
US11591755B2 (en) | 2015-11-03 | 2023-02-28 | Kimberly-Clark Worldwide, Inc. | Paper tissue with high bulk and low lint |
KR101949996B1 (ko) | 2016-01-28 | 2019-02-19 | 주식회사 엘지화학 | 고흡수성 수지의 제조 방법 |
US11325101B2 (en) | 2016-02-25 | 2022-05-10 | Lg Chem, Ltd. | Super absorbent polymer and method for preparing the same |
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KR101953764B1 (ko) | 2016-11-04 | 2019-03-04 | 주식회사 엘지화학 | 고흡수성 수지 및 이의 제조 방법 |
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WO2022265477A1 (fr) | 2021-06-18 | 2022-12-22 | 주식회사 엘지화학 | Appareil de micronisation pour hydrogel de polymère superabsorbant |
US20240278211A1 (en) | 2021-06-18 | 2024-08-22 | Lg Chem, Ltd. | Preparation method of super absorbent polymer and super absorbent polymer |
WO2022265459A1 (fr) | 2021-06-18 | 2022-12-22 | 주식회사 엘지화학 | Procédé de préparation d'un polymère super-absorbant, et polymère super-absorbant |
WO2022265471A1 (fr) | 2021-06-18 | 2022-12-22 | 주식회사 엘지화학 | Procédé de préparation d'un polymère superabsorbant et polymère superabsorbant |
US20230381744A1 (en) | 2021-06-18 | 2023-11-30 | Lg Chem, Ltd. | Preparation method of superabsorbent polymer |
WO2023038340A1 (fr) | 2021-09-09 | 2023-03-16 | 주식회사 엘지화학 | Procédé de préparation de polymère superabsorbant |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3767784A (en) * | 1970-12-01 | 1973-10-23 | S Gluck | Composition for the protection and treatment of injured body tissue and method of utilizing the same |
US4307717A (en) * | 1977-11-07 | 1981-12-29 | Lectec Corporation | Sterile improved bandage containing a medicament |
US4253460A (en) * | 1979-07-27 | 1981-03-03 | E. R. Squibb & Sons, Inc. | Ostomy adhesive |
DE3018969A1 (de) * | 1980-05-17 | 1981-11-26 | Beiersdorf Ag, 2000 Hamburg | Mischung fuer halbstarre medizinische stuetzverbaende, damit erhaltene medizinische binde und verfahren zu deren herstellung |
SE440510B (sv) * | 1980-06-11 | 1985-08-05 | Ferrosan Ab | Skumplast innehallande svellbara polymerpartiklar samt sett for framstellning derav |
GR75732B (fr) * | 1980-08-25 | 1984-08-02 | Johnson & Johnson | |
US4394930A (en) * | 1981-03-27 | 1983-07-26 | Johnson & Johnson | Absorbent foam products |
US4415388A (en) * | 1981-06-22 | 1983-11-15 | Johnson & Johnson | Method of making absorbent bearing products |
DE3128100C2 (de) * | 1981-07-16 | 1986-05-22 | Chemische Fabrik Stockhausen GmbH, 4150 Krefeld | Absorptionsmittel für Blut und seröse Körperflüssigkeiten |
US4538603A (en) * | 1982-04-22 | 1985-09-03 | E. R. Squibb & Sons, Inc. | Dressings, granules, and their use in treating wounds |
JPS59189169A (ja) * | 1983-04-12 | 1984-10-26 | Kobayashi Koryo Kk | ゲル形成用樹脂組成物 |
AU567728B2 (en) * | 1984-03-27 | 1987-12-03 | Personal Products Co. | Polymer absorbent |
-
1985
- 1985-11-22 FR FR8517361A patent/FR2590501B1/fr not_active Expired - Fee Related
-
1986
- 1986-11-21 DE DE8686402603T patent/DE3674170D1/de not_active Expired - Fee Related
- 1986-11-21 JP JP61506228A patent/JPS63501689A/ja active Granted
- 1986-11-21 EP EP86906854A patent/EP0249606A1/fr active Pending
- 1986-11-21 AT AT86402603T patent/ATE56366T1/de not_active IP Right Cessation
- 1986-11-21 WO PCT/FR1986/000398 patent/WO1987003208A1/fr not_active Application Discontinuation
- 1986-11-21 ES ES86402603T patent/ES2017471B3/es not_active Expired - Lifetime
- 1986-11-21 EP EP86402603A patent/EP0227526B1/fr not_active Expired - Lifetime
- 1986-11-21 US US07/088,110 patent/US4883478A/en not_active Expired - Fee Related
-
1990
- 1990-11-30 GR GR90401018T patent/GR3001151T3/el unknown
Non-Patent Citations (1)
Title |
---|
See references of WO8703208A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP0227526B1 (fr) | 1990-09-12 |
US4883478A (en) | 1989-11-28 |
FR2590501B1 (fr) | 1994-01-14 |
ATE56366T1 (de) | 1990-09-15 |
WO1987003208A1 (fr) | 1987-06-04 |
DE3674170D1 (de) | 1990-10-18 |
JPH0412142B2 (fr) | 1992-03-03 |
EP0227526A1 (fr) | 1987-07-01 |
JPS63501689A (ja) | 1988-07-14 |
FR2590501A1 (fr) | 1987-05-29 |
ES2017471B3 (es) | 1991-02-16 |
GR3001151T3 (en) | 1992-06-30 |
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