Collagen Or Gelling Material Patents (Class 604/368)
  • Patent number: 8026408
    Abstract: A method of forming a surface cleaning pad body comprising a matrix web of binder fibers and superabsorbent polymer particles is provided. The method comprises the steps of depositing a mass of binder fibers onto a conveyor, shielding all but a selected area of the mass of binder fibers, depositing superabsorbent polymer particles onto the selected area of the mass of binder fibers so as to disburse superabsorbent polymer particles throughout a thickness of the mass of binder fibers, and bonding the mass of binder fibers to form a web structure and to substantially contain the superabsorbent polymer particles, thereby providing a cleaning pad body with superabsorbent polymer particles substantially contained in a zone of the mass of binder fibers that occupies at least a portion of the thickness of the mass of binder fibers and the selected area.
    Type: Grant
    Filed: October 10, 2006
    Date of Patent: September 27, 2011
    Assignee: First Quality Retail Services, LLC
    Inventor: Frank S. Glaug
  • Patent number: 8017827
    Abstract: A substantially cellulose free absorbent core comprising absorbent polymer material having a saline flow conductivity greater than about 100×10?7 cm3·sec/g and a centrifuge retention capacity of greater than about 20 g/g. A disposable absorbent article is also disclosed.
    Type: Grant
    Filed: June 18, 2008
    Date of Patent: September 13, 2011
    Assignee: The Procter & Gamble Company
    Inventors: Harald Hermann Hundorf, Holger Beruda, Horst Blessing, Peter Dziezok, Axel Krause, Mattias Schmidt, Lutz Stelzig
  • Patent number: 8007884
    Abstract: The invention provides processes for coating the surface of substrates such as a sheet, film, foam, fiber, etc., with a curable liquid resin or solution of curable resin, then in one embodiment, stably attaching a superabsorbent polymeric powder to such resin, and then curing the resin to form a coated superabsorbent product. Such substrates may include polymeric materials. Other process embodiments utilizing curable and thermoplastic resinous powders may be used instead of curable liquid resins and resulting products are included in the invention. The coated product may be utilized for water and nutrient retention in combination with irrigation, erosion control, to direct plant root growth, and to clean up standing water and petroleum spills.
    Type: Grant
    Filed: December 16, 2003
    Date of Patent: August 30, 2011
    Assignee: Synergistic Ventures, Inc.
    Inventors: Jeno Muthiah, Gerald K. White, Duane R. Rubash
  • Publication number: 20110208145
    Abstract: A fluid management cover system of launderable and durable character including at least one fluid transport layer with at least one absorptive reservoir layer disposed in underlying relation to the fluid transport layer. The upper surface of the absorptive reservoir layer is characterized by a greater capillarity than the adjacent surface of the fluid transport layer such that fluid is drawn away from the fluid transport layer and is held within the absorptive reservoir layer. At least one pressure distribution layer incorporating material that at least partially recovers following compression is disposed at a position below the absorptive reservoir layer. An optional skin contacting layer may be disposed above the fluid transport layer and an optional backing layer may be disposed in underlying relation to other layers.
    Type: Application
    Filed: February 2, 2011
    Publication date: August 25, 2011
    Inventors: Le Zhang, Yunzhang Wang, Carnevale Sally, Robert M. MacMeccan, Jeeyoung Choi, Keith A. Keller, Patrick R. Carroll, James M. Spry, Robert Champion
  • Publication number: 20110202026
    Abstract: The present invention provides a hemostatic composite sponge comprising a porous matrix of a biomaterial and a material enhancing the adherence of said sponge to the applied tissue stably associated with at least one surface of said sponge, a method of producing these sponges and their use in hemostasis.
    Type: Application
    Filed: December 16, 2010
    Publication date: August 18, 2011
    Applicants: Baxter International Inc., Baxter Healthcare S.A.
    Inventors: Hans Christian Hedrich, Joris Hoefinghoff, Woonza M. Rhee, Atsushi Edward Osawa
  • Patent number: 7994384
    Abstract: An absorbent composition includes absorbent material, such as superabsorbent material, surface-treated with at least two different compatible agents. The superabsorbent material may be coated with multiple surface treatment agents in such a manner that each of the surface treatment agents is exposed on a surface of the superabsorbent material. For example, one surface treatment agent may be in a liquid coating form and another surface treatment agent may be in a powder form, each applied separately to the superabsorbent material.
    Type: Grant
    Filed: April 28, 2004
    Date of Patent: August 9, 2011
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Jian Qin, Hoa La Wilhelm, Sheng-Hsin Hu
  • Patent number: 7980001
    Abstract: Fabric conditioner dispensers capable of being maintained with one hand.
    Type: Grant
    Filed: February 16, 2005
    Date of Patent: July 19, 2011
    Assignee: The Procter & Gamble Company
    Inventors: Toan Trinh, Samuel James Morris, III, Lawrence Andrew Schumacher, John William Smith
  • Patent number: 7982088
    Abstract: A disposable article to be fitted to a wearer comprising a biosensor including at least one bio-recognition element. The biosensor is adapted to detect a target biological analyte in bodily waste or on the wearer's skin.
    Type: Grant
    Filed: January 8, 2004
    Date of Patent: July 19, 2011
    Assignee: The Procter & Gamble Company
    Inventors: Donald Carroll Roe, Andreas Muscat
  • Publication number: 20110172622
    Abstract: A wearable absorbent article having features for the containment and absorption of bodily exudates. The article may comprise an outer cover and an absorbent insert. The outer cover may be formed of durable or semi-durable materials and be launderable. The insert may be disposable. The insert may have containment and absorption features that prevent soiling of the outer cover by the wearer's exudates, so that the outer cover may be reused after an exudation event and change of inserts. The insert and/or the outer cover may have features to enhance containment, absorption, economy of materials and/or fit that make them asymmetric about their respective lateral axes, and may have features that direct a user to install the insert and/or the outer cover with correct front-rear orientation relative the wearer. Articles of commerce including packages of outer covers and/or inserts in varying combinations of numbers and features are also described.
    Type: Application
    Filed: January 14, 2010
    Publication date: July 14, 2011
    Inventors: Donald Carroll Roe, Elaine Mary Wiggins, Fred Naval Desai
  • Patent number: 7977531
    Abstract: The present invention relates to absorbent articles that include absorbent compositions which exhibit swelling, deswelling, and reswelling behavior. More specifically, absorbent compositions of this invention swell and absorb fluids after exposure to aqueous fluids, deswell and release fluids from the swollen absorbent compositions, and can also reswell and absorb fluids. The swelling-deswelling-reswelling behavior allows enhanced liquid distribution in absorbent composites and absorbent articles.
    Type: Grant
    Filed: June 30, 2008
    Date of Patent: July 12, 2011
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Richard N. Dodge, II, Jian Qin, Scott J. Smith, Gonglu Tian, Yaru Shi
  • Patent number: 7962993
    Abstract: A floor cleaning pad is provided having a pad body comprising a cleaning surface configured for contact with a floor to be cleaned and an opposed surface configured to be coupled to a floor cleaning implement. The cleaning surface and the opposed surface defining a thickness of the pad body and superabsorbent polymer particles maintained within a zone of the pad body, and the zone of the superabsorbent polymer particles occupying a portion of the thickness and an area less than an area of the cleaning surface.
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: June 21, 2011
    Assignee: First Quality Retail Services, LLC
    Inventor: Frank S. Glaug
  • Patent number: 7960604
    Abstract: The present invention relates to a process for the production of an absorbing sanitary article comprising lactic acid producing bacteria. The process comprises dispersion of lactic acid producing bacteria in a carrier, and application of the resulting dispersion of bacteria by continuous or discontinuous gentle feeding on and/or in at least one component that are to form part of the final article. Furthermore, the present invention relates to an absorbing sanitary article comprising lactic acid producing bacteria dispersed in an essentially hydrophobic carrier. The dispersion of bacteria forms at least one continuous or discontinuous string on and/or in the final sanitary article.
    Type: Grant
    Filed: September 19, 2001
    Date of Patent: June 14, 2011
    Assignee: Ellen AB
    Inventors: Hanna Tengberg, Kristina Runeberg, Helene Jonsson, Endre Kvanta, Johan Burenius, Anna Weiner Jiffer
  • Patent number: 7951127
    Abstract: An absorbent article for fecal matter handling, especially with respect to mushy and/or pasty fecal matter, along with methods of making the same. A composite bodyside liner can reduce the amount of fecal matter that remains on the skin of a wearer after removal of the absorbent article from the wearer. The bodyside liner can include only a fluid pervious liner layer. Alternatively, the bodyside liner can include a fluid pervious liner layer and a surge layer. A fecal adhering treatment composition is applied to at least a portion of the bodyside liner to reduce the amount of fecal matter that remains on the skin of the wearer after the absorbent article is removed.
    Type: Grant
    Filed: December 15, 2006
    Date of Patent: May 31, 2011
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Lisa M. Sanabria, Eugenio G. Varona
  • Patent number: 7947865
    Abstract: An absorbent structure formed from a process of providing water-swellable material that includes water-swellable polymer particles, which are coated with a coating agent. The coating agent is a phase-separating elastomeric material that has a first and second glass transition temperature. The coated water-swellable polymer particles are able to swell without breakage of the coating.
    Type: Grant
    Filed: March 5, 2009
    Date of Patent: May 24, 2011
    Assignee: The Procter & Gamble Company
    Inventors: Renae Dianna Fossum, Mattias Schmidt, Axel Meyer
  • Publication number: 20110112499
    Abstract: An absorbent article may comprise a first zone comprising graphics and a second zone comprising graphics, wherein the first and second zones have different elastic properties. Further, the absorbent article may comprise a first absorbent article component and a second absorbent article component having substantially different elastic properties, wherein the first absorbent article component comprises an elastomer. Additionally, the absorbent article may comprise a third absorbent article component overlapping the first and second absorbent article components, wherein the third absorbent article component comprises graphics on at least the portions which overlap the first and second absorbent article components.
    Type: Application
    Filed: January 14, 2011
    Publication date: May 12, 2011
    Inventors: Michael Dale Trennepohl, Andrew James Sauer, Donald Carroll Roe
  • Patent number: 7935860
    Abstract: An absorbent article can have a topsheet, a backsheet, and an absorbent core disposed between the topsheet and the backsheet. In some aspects, at least one of the topsheet, backsheet, and absorbent core is stretchable. In other aspects, the absorbent core can comprise layers, at least one of which includes substantially the superabsorbent material only and at least one of which includes substantially fluff only. In some aspects, the article includes superabsorbent material having a surface additive that includes a surface crosslinking agent, a water-insoluble inorganic metal compound and a polymeric coating.
    Type: Grant
    Filed: March 23, 2007
    Date of Patent: May 3, 2011
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Richard N. Dodge, II, Tammy J. Nettekoven, Scott J. Smith, Stan McIntosh, David L. Bergman, Jr.
  • Patent number: 7919667
    Abstract: An improved absorbency material for absorbency applications comprised of a cellulosic fibrous material wherein said cellulosic fibrous material such as pulp is a cold alkali solution treated material at a treatment temperature of less than about 50° C.; a process for improving absorbency and other characteristics of said pulp.
    Type: Grant
    Filed: June 15, 1999
    Date of Patent: April 5, 2011
    Assignee: Rayonier TRS Holdings Inc.
    Inventors: Phyllis Leithem, Charles A. Kremers, W. Paul Harrell, Stephen Lewis, Karl D. Sears, Quan He, Peter R. Abitz
  • Patent number: 7910688
    Abstract: A process is described for recycling superabsorbent polymer fines into a process that includes treating the superabsorbent polymer fines with caustic and a polymerization step for making the superabsorbent polymer gel. The process requires treating the superabsorbent polymer fines with a caustic, followed by mixture with polymerizable monomer solution, and polymerizing the mixture of the superabsorbent polymer fines and monomer to form the aqueous fluid absorbent polymer. In the process, the fines are incorporated into the new polymer gel and become indistinguishable there from. The gel may then be comminuted into a particulate dried and then separated into a portion having a desired minimum particle size in a fines portion having less than the desired size. The particulate may then be coated with a surface crosslinking agent and surface additives and heated for surface conversion.
    Type: Grant
    Filed: October 22, 2008
    Date of Patent: March 22, 2011
    Assignee: Evonik Stockhausen Inc.
    Inventors: Gonglu Tian, Scott J. Smith, Janet Pate-Linton
  • Patent number: 7910797
    Abstract: An absorbent article includes a backsheet having a longitudinal axis, a topsheet attached to the backsheet and having a body-facing surface, and an absorbent core disposed between the backsheet and the topsheet. The article may also include barrier leg cuffs. The article further includes a sensation aspect, which sensation aspect may be provided between the core and the topsheet. The sensation aspect may be, for example, a temperature sensation aspect. A visible indicator may be associated with the sensation aspect.
    Type: Grant
    Filed: September 18, 2006
    Date of Patent: March 22, 2011
    Assignee: The Procter & Gamble Company
    Inventors: Jennifer Joan Nandrea, Masaharu Nishikawa
  • Patent number: 7906585
    Abstract: The invention relates to absorptive, crosslinked polymers which are based on partly neutralized, monoethylenically unsaturated monomer carrying acid groups wherein the absorptive crosslinked polymer may be coated with a thermoplastic polymer, and have improved properties, in particular in respect of their capacity for transportation of liquids in the swollen state, and which has a high gel bed permeability and compatibility to affix to a thermoplastic material.
    Type: Grant
    Filed: October 2, 2007
    Date of Patent: March 15, 2011
    Assignee: Evonik Stockhausen, LLC
    Inventors: Stan McIntosh, Scott J. Smith, Angela Jones Lang, David L. Bergman, Jr.
  • Patent number: 7888548
    Abstract: An absorbent layer structure for use as an absorbent body in an absorbent article includes a first surface layer having cellulose fluff pulp, a second surface layer having cellulose fluff pulp, and an inner layer arranged between the surface layers having a mixture of cellulose fluff pulp and 5-90% by weight superabsorbent material, the cellulose fluff pulp in the surface layers having a mat strength which is lower than the mat strength in the inner layer by at least 1 N measured at a weight per unit area of 300 g/m2 and a bulk of 4.5 cm3/g or less and preferably a mat strength which is lower than the mat strength in the inner layer by at least 2 N measured at a weight per unit area of 300 g/m2 and a bulk of 4.5 cm3/g or less.
    Type: Grant
    Filed: December 28, 2006
    Date of Patent: February 15, 2011
    Assignee: SCA Hygiene Products AB
    Inventor: Ted Guidotti
  • Patent number: 7880052
    Abstract: An absorbent article having an absorbent structure sized and configured for insertion at least partially within the vestibule of a female wearer. The absorbent structure has a saturation capacity as determined by a Saturation Capacity and Retention Capacity Test of at least about 15 grams/gram, a retention capacity as determined by the Saturation Capacity and Retention Capacity Test of at least about 3 grams/gram, and an intake time for a first insult of the absorbent structure as determined by an Intake and Rewet Test of no more than about 30 seconds.
    Type: Grant
    Filed: November 21, 2003
    Date of Patent: February 1, 2011
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Jason M. English, Richard J. Hantke, Heather A. Sorebo
  • Patent number: 7879972
    Abstract: A method for drying a material such as a polymer hydrogel which passes through a cohesive phase as it dries is disclosed. The method comprises agitating a composition while removing liquid until the solids content of the composition reaches a level at which the composition enters a cohesive phase, halting agitation, removing liquid from the composition in the absence of agitation, and resuming agitation. Practice of the present invention can eliminate the problems associated with adhesion of a material to itself and to process equipment during the cohesive phase.
    Type: Grant
    Filed: June 16, 2010
    Date of Patent: February 1, 2011
    Assignee: Genzyme Corporation
    Inventor: Gary S. Rea
  • Patent number: 7872168
    Abstract: An absorbent article having a stretchable substrate and an absorbent composite comprising a layer of adhesive composition in contact with the stretchable substrate. A layer of particulate superabsorbent material is applied to and held by the adhesive composition. The absorbent composite is secured to the substrate by the adhesive composition. The stretchable substrate has a recovery in at least one of the lateral direction and the longitudinal directions of the article as determined by an Elongation and Recovery Test, and the absorbent article has a recovery in the at least one of the lateral direction and the longitudinal direction as determined by the Elongation and Recovery Test that is at least about 60 percent of the recovery of the substrate in the at least one of the lateral direction and the longitudinal direction.
    Type: Grant
    Filed: October 31, 2003
    Date of Patent: January 18, 2011
    Assignee: Kimberely-Clark Worldwide, Inc.
    Inventors: Lawrence H. Sawyer, Mark M. Mleziva, Peiguang Zhou, Davis-Dang Hoang Nhan
  • Patent number: 7868075
    Abstract: The object of the present invention is to provide a water-absorbing resin compound, wherein the water-absorbing resin compound can retain antibacterial properties of an antibacterial metal to suppress the emission of unpleasant odors even when an organic material exists in a system in the case of using an eluting-type antibacterial agent. Thus, the present invention relates to a water-absorbing resin compound, which comprises a water-absorbing resin, an antibacterial agent having a porous material incorporating an antibacterial metal, and a metal chelating agent.
    Type: Grant
    Filed: April 7, 2004
    Date of Patent: January 11, 2011
    Assignee: Sumitomo Seika Chemicals Co., Ltd.
    Inventors: Takayasu Taniguchi, Masayoshi Handa, Yasuhiro Nawata
  • Patent number: 7858157
    Abstract: A process for treating fibers to render the fibers more hydrophilic. The process includes contacting the fibers with a solution of hydrophilic monomers and radical polymerization initiators and exposing the fibers to UV radiation.
    Type: Grant
    Filed: March 12, 2009
    Date of Patent: December 28, 2010
    Assignee: The Procter & Gamble Company
    Inventors: Ludwig Busam, Andreas Flohr, Christofer Fuchs, Ekaterina Anatolyevna Ponomarenko
  • Patent number: 7855315
    Abstract: A continuous sheet having a combination of acidic and basic water-absorbing resin particles that are essentially not neutralized and can be continuously manufactured on conventional papermaking apparatus, using a wet, dry, or wet-dry process to manufacture a water-absorbent sheet-like substrate containing 50%-100% by weight of the combination of acidic and basic water-absorbent particles is disclosed.
    Type: Grant
    Filed: June 25, 2007
    Date of Patent: December 21, 2010
    Inventors: Michael A. Mitchell, Mark Anderson, Thomas W. Beihoffer
  • Patent number: 7854822
    Abstract: A plasticizing formulation for producing plasticized fluff pulp. The plasticizing formulation, which preferably is an aqueous solution, includes a primary plasticizing agent, and optionally a secondary plasticizing agent. Preferably, the primary plasticizing agent is 1,4-cyclohexanedimethanol, and the secondary plasticizing agent is triacetin. When the plasticizing formulation is applied to a cellulosic fluff pulp, a plasticized fluff pulp is produced. The resultant plasticized fluff pulp may have one or more of the following: reduced Kamas energy, Mullen strength, and fiber knot and nit contents, when compared to the base cellulosic fluff pulp fiber that is not plasticized.
    Type: Grant
    Filed: December 2, 2004
    Date of Patent: December 21, 2010
    Assignee: Rayonier TRS Holdings Inc.
    Inventors: Harry J. Chmielewski, Othman A. Hamed, Michael Haeussler
  • Patent number: 7851669
    Abstract: An absorbent article that has a thin, conformable absorbent core where the core has at least two layers, each including a different superabsorbent material, and each being typically substantially free of cellulosic fibers, is described. The absorbent article has a Circular Bend Flexibility of less than about 15 N. The core includes a storage layer and an acquisition/storage layer each a specific basis capacity of and absorption efficiency.
    Type: Grant
    Filed: July 26, 2006
    Date of Patent: December 14, 2010
    Assignee: The Procter & Gamble Company
    Inventors: Yasue Nakagawa, Holger Beruda, Mattias Schmidt
  • Patent number: 7851667
    Abstract: An absorbent article, preferably a disposable absorbent article such as a diaper, is disclosed that provides an improved immobilization of absorbent polymer material when the article is fully or partially urine loaded. This absorbent core is useful for providing an absorbent article of increased wearing comfort. Specifically disclosed is an absorbent core useful for an absorbent article comprising a substrate layer and absorbent material, the absorbent material comprising an absorbent polymer material, the absorbent material optionally comprising absorbent fibrous material, the absorbent fibrous material not representing more than 20% of the weight of absorbent polymer material, wherein the absorbent material is immobilized when wet such that the absorbent core achieves a wet immobilization of more than 50%, preferably of more than 60%, 70%, 80% or 90% according to the Wet Immobilization Test described herein.
    Type: Grant
    Filed: March 13, 2007
    Date of Patent: December 14, 2010
    Assignee: The Procter & Gamble Company
    Inventors: Uwe Jurgen Becker, Ludwig Busam, Bruno Johannes Ehrnsperger, Torsten Lindner, Siegfried Link, Volker Maier, Sanaul Kabir Siddiquee, Gabriele Stiehl, Thomas Tombuelt
  • Patent number: 7847144
    Abstract: The present invention relates to absorbent articles comprising superabsorbent polymer particles especially suitable for use in the fluid acquisition zone of the absorbent core. The superabsorbent polymer particles are coated with cationic polymers having 1 to 25 mol/kg, referring to the total weight of the cationic polymers, of cationic groups, which can be protonated. The cationic polymers are not substantially covalently bound to the superabsorbent polymer particles.
    Type: Grant
    Filed: September 15, 2004
    Date of Patent: December 7, 2010
    Assignee: The Procter & Gamble Company
    Inventors: Holger Beruda, Yasue Nakagawa, Andrea Lieselotte Link, Mattias Schmidt
  • Publication number: 20100305526
    Abstract: A reduced-pressure treatment system for treating a tissue site of a patient, the system includes a manifold pad for disposing proximate the tissue site. The manilfold pad includes a hydrogel reservoir member and a manifold member. The hydrogel reservoir member is adapted to receive and store fluid from the tissue site at a first pressure and adapted to release at least a portion of the fluid at a second pressure. The first pressure is greater than the second pressure on an absolute pressure scale. The system also includes a sealing drape for placing over the tissue and manifold pad. The sealing drape forms a fluid seal over the tissue and manifold pad. A reduced-pressure subsystem delivers reduced pressure to the sealing drape. Other systems, apparatuses, and methods are disclosed.
    Type: Application
    Filed: May 24, 2010
    Publication date: December 2, 2010
    Inventors: Timothy Mark Robinson, Christopher Brian Locke
  • Patent number: 7842020
    Abstract: A double diaper package includes adhesively attached, similarly sized inner and outer diapers. Each of the diapers has a liquid permeable skin contacting net and a liquid impermeable polymeric back sheet edge bonded to each other so as to surround and encase a super-absorber in a fibrous matrix. The inner diaper has an adhesive coated edge flap of the liquid impermeable sheet extending from the edge bond. This edge flap secures the outer diaper to the inner diaper, forming a double diaper package that is attached to the baby using waist-securing tabs connected to the inner diaper. When soiled, the inner diaper is pulled away by releasing the waist-securing tabs and the adhesive edge flap attachment. The fresh, clean, outer diaper is attached using the waist-securing tabs of the outer diaper. The inner soiled diaper is then discarded.
    Type: Grant
    Filed: November 17, 2006
    Date of Patent: November 30, 2010
    Assignee: I Did It, Inc.
    Inventor: Marni Markell Hurwitz
  • Patent number: 7838723
    Abstract: The invention relates to absorbent structures for use in absorbent articles. The structures include a first region for distribution of fluid and a second region for storage of fluid. The first region contains materials, with a relatively high capillary desorption pressure, while the second region contains materials exhibiting a sufficiently high capillary absorption pressure efficiently drain the first region. Exemplary materials have a CSDH 50 of more than 40 cm, and a second region containing a material which satisfies at least one of following requirements: (a) an absorption capacity of at least 15 g/g at 35 cm (b) an absorption capacity of at least 15 g/g at 0 cm and an absorption efficiency of at least 55% at 40 cm; and (c) a Capillary Sorption Absorption height at 50% of its capacity at 0 cm absorption height (CSAH 50) of at least 35 cm.
    Type: Grant
    Filed: March 12, 1999
    Date of Patent: November 23, 2010
    Assignee: The Procter & Gamble Company
    Inventors: Mattias Schmidt, Gianfranco Palumbo
  • Patent number: 7838722
    Abstract: The present invention relates to a method of applying absorbent gelling material (AGM) granules by indirect printing onto an carrier layer for use in an absorbent article, particularly diaper for babies or adults, training pants, pull-up diapers (diaper pants), sanitary napkins, panty liners or the like. These articles typically comprise the carrier layer with the AGM particles together with further layers, making up the complete article.
    Type: Grant
    Filed: July 18, 2005
    Date of Patent: November 23, 2010
    Assignee: The Procter & Gamble Company
    Inventors: Horst Blessing, Hans Adolf Jackels, Siegfried Link, Volker Maier, Thomas Ludwig Woschnik, Martin Scaife
  • Patent number: 7838155
    Abstract: The present invention relates to an aqueous electrolyte solution absorber including an aqueous electrolyte solution absorbent polymer obtained by introducing a hydrophilic polar group to a water insoluble polymer and a material to be sucked. The aqueous electrolyte solution absorber is produced by filling a water permeable bag type member with the aqueous electrolyte solution absorbent polymer obtained by introducing the hydrophilic polar group to the water insoluble polymer and a material to be sucked. The aqueous electrolyte solution absorber is inexpensive and has a high safety, a broad applicable range and a good handling property upon transportation or storage. Thus, a large amount of aqueous electrolyte solution absorbers can be rapidly conveyed at one time even to a risky place where persons are endangered to convey the absorbers.
    Type: Grant
    Filed: August 5, 2005
    Date of Patent: November 23, 2010
    Assignee: Sony Corporation
    Inventors: Yasuhito Inagaki, Haruo Watanabe
  • Patent number: 7837662
    Abstract: An absorbent article that has a thin, conformable absorbent core where the core has at least two layers, both of which includes (different) superabsorbent material and both being typically substantially free of cellulosic fibers is described. The absorbent article has a Circular Bend Flexibility of less than about 15 N and typically a an acquisition rate on the third gush of less than about 170 seconds and/or on the fourth gush of less than about 190 seconds.
    Type: Grant
    Filed: July 26, 2006
    Date of Patent: November 23, 2010
    Assignee: The Procter & Gamble Company
    Inventors: Yasue Nakagawa, Holger Beruda, Mattias Schmidt
  • Patent number: 7812082
    Abstract: The invention relates to absorptive, crosslinked polymers which are based on partly neutralized, monoethylenically unsaturated monomer carrying acid groups wherein the absorptive crosslinked polymer may be coated with a thermoplastic polymer, and have improved properties, in particular in respect of their capacity for transportation of liquids in the swollen state, and which has a high gel bed permeability and compatibility to affix to a thermoplastic material.
    Type: Grant
    Filed: December 12, 2005
    Date of Patent: October 12, 2010
    Assignee: Evonik Stockhausen, LLC
    Inventors: Stan McIntosh, Scott J. Smith, Angela Jones Lang, David L. Bergman, Jr.
  • Patent number: 7799967
    Abstract: An absorbent structure expands to a greater extent along one surface than along an opposite surface when in the presence of a liquid. The absorbent structure may include a single layer, or two or more layers intimately bonded to one another. When in the presence of a liquid, the more expandable surface causes an increase in concavity in the X-Y plane of the structure, with the concavity being in the direction of the less expandable surface. One or both surfaces can be treated to adjust the respective level of expandability. By inducing a formed shape upon hydration swelling, a trough shape can be generated to facilitate absorbent properties, containment, and fit. The invention includes absorbent articles having such an absorbent structure incorporated therein.
    Type: Grant
    Filed: April 8, 2004
    Date of Patent: September 21, 2010
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Sridhar Ranganathan, Fred R. Radwanski, Jenny L. Day, Jeffrey J. Krueger, Gregory M. Lefkowitz, Stanley R. Kellenberger, Hoa La Wilhelm
  • Patent number: 7781640
    Abstract: A disposable absorbent article including a wetness sensation member and visible highlighting indicating the presence of the wetness sensation member to facilitate an opportunity for the toilet training of the wearer. The wetness sensation member includes a permeable layer and a flow control layer. Urine deposited on the wetness sensation member can penetrate through the permeable body-facing layer in a z direction away from the wearer to the flow control layer. The flow control layer retards the passage of the urine through the wetness sensation member in the z direction while supporting the movement of the urine in an x-y plane to increase the wetted area contacting the wearer's skin and thereby enhance the wearer's awareness that urination has occurred. The visible highlighting is visible when viewing a body-facing surface of the article and may be associatively correlated with an externally visible marking and/or with the concept of toilet training.
    Type: Grant
    Filed: November 17, 2005
    Date of Patent: August 24, 2010
    Assignee: The Procter & Gamble Company
    Inventors: Mary Elizabeth Davis, Donald Carroll Roe, Patrick Jay Allen, Edward Paul Carlin
  • Patent number: 7777095
    Abstract: An absorbent composition having a biodegradable absorbent polymer and a hydrophilic soft polymer surface modifying agent. The absorbent composition exhibits improved absorbency under load and gel bed permeability when subjected to an Absorbency Under Load Test and a Gel Bed Permeability Test, respectively. The absorbent composition can be made by combining a biodegradable absorbent polymer with an aqueous solution of a hydrophilic soft polymer and then drying the biodegradable absorbent polymer.
    Type: Grant
    Filed: June 29, 2004
    Date of Patent: August 17, 2010
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventor: Dave Allen Soerens
  • Patent number: 7772456
    Abstract: An article comprises a stretchable absorbent composite (30) that includes a quantity of superabsorbent particles (32) which are operatively contained within a matrix of elastomeric polymer fibers (34). In particular aspects, the composite article can include at least about 60 wt % of the superabsorbent particles and not more than about 40 wt % of the elastomeric polymer fibers, based on a total weight of the composite. In other aspects, the composite article can provide a high stretchability. Additional aspects can provide a low shake-out. Particular configurations can, for example, provide a stretchability value of at least about 30%. Additional aspects can include a configuration that provides a shake-out value of not more than about 2%. In further aspects, the absorbent composite can include superabsorbent particles having a coating of treatment-material that is thermally processible. Additional aspects can include a treatment-material which is water soluble.
    Type: Grant
    Filed: June 30, 2004
    Date of Patent: August 10, 2010
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Xiaomin Zhang, David Martin Jackson, Lisa Marie Jacobsen, Jian Qin, Dave Allen Soerens
  • Publication number: 20100198177
    Abstract: Improved skin-adhesive compositions for bonding a substrate, such as an absorbent article, to skin are disclosed. More particularly, the skin-adhesive composition has an improved, yet gentle, adhesion to the skin of a user, while maintaining strong, effective bonding to various inanimate, non-skin substrates. In one embodiment, the skin-adhesive composition can provide one or more skin benefit agents to the user. The skin-adhesive composition may be applied to an absorbent article, such as a panty-liner, sanitary napkin, or an incontinence article, for directly adhering the article to the skin of a user.
    Type: Application
    Filed: February 2, 2009
    Publication date: August 5, 2010
    Applicant: KIMBERLY-CLARK WORLDWIDE, INC.
    Inventors: Ali Yahiaoui, Candace Dyan Krautkramer, Margaret Gwyn Latimer, Jack Nelson Lindon, Melissa Jean Dennis, Garry Roland Woltman
  • Patent number: 7767878
    Abstract: A disposable absorbent article includes an absorbent mat between a liquid-permeable top sheet and a liquid-impermeable back sheet. The absorbent mat includes a sheet-shaped water-absorbent layer that contains a water-absorbent resin powder but that does not contain pulp fibers; and a fiber assembly layer that contains a water-absorbent resin powder and pulp fibers in this order from a top sheet side. The sheet-shaped water-absorbent layer includes a plurality of water-absorbent resin presence regions in each of which the water-absorbent resin powder is wrapped; and a plurality of water-absorbent resin powder absence regions each being formed between the two adjacent water-absorbent resin powder presence regions.
    Type: Grant
    Filed: March 12, 2004
    Date of Patent: August 3, 2010
    Assignee: Livedo Corporation
    Inventor: Taichiro Suzuki
  • Patent number: 7767876
    Abstract: A disposable absorbent article including a wetness sensation member and visible highlighting indicating the presence of the wetness sensation member to facilitate an opportunity for the toilet training of the wearer. The wetness sensation member includes a permeable layer and a flow control layer. Urine deposited on the wetness sensation member can penetrate through the permeable body-facing layer in a z direction away from the wearer to the flow control layer. The flow control layer retards the passage of the urine through the wetness sensation member in the z direction while supporting the movement of the urine in an x-y plane to increase the wetted area contacting the wearer's skin and thereby enhance the wearer's awareness that urination has occurred. The visible highlighting is visible when viewing a body-facing surface of the article and may be associatively correlated with an externally visible marking and/or with the concept of toilet training.
    Type: Grant
    Filed: October 30, 2003
    Date of Patent: August 3, 2010
    Assignee: The Procter & Gamble Company
    Inventors: Mary Elizabeth Davis, Donald Carroll Roe, Patrick Jay Allen, Edward Paul Carlin
  • Patent number: 7759540
    Abstract: The present invention relates generally to an absorbent core for an absorbent article, and more particularly to an absorbent core having zoned absorbency due to specific placement of adhesives or specific lack of adhesive. Such absorbent cores provide the flexibility of creating precise zoning of particular properties throughout the core, and they provide improved comfort and fit.
    Type: Grant
    Filed: July 23, 2002
    Date of Patent: July 20, 2010
    Assignee: Paragon Trade Brands, LLC
    Inventors: John Litvay, Andrew Baker
  • Publication number: 20100179496
    Abstract: A wearable absorbent article having features for the containment and absorption of bodily exudates. The article may comprise an outer cover and an absorbent insert. The outer cover may be formed of durable or semi-durable materials and be launderable. The insert may be disposable. The insert may have containment and absorption features that prevent soiling of the outer cover by the wearer's exudates, so that the outer cover may be reused after an exudation event and change of inserts. The insert and/or the outer cover may have features to enhance containment, absorption, economy of materials and/or fit that make them asymmetric about their respective lateral axes, and may have features that direct a user to install the insert and/or the outer cover with correct front-rear orientation relative the wearer. Articles of commerce including packages of outer covers and/or inserts in varying combinations of numbers and features are also described.
    Type: Application
    Filed: January 14, 2010
    Publication date: July 15, 2010
    Inventors: Donald Carroll Roe, Elaine Mary Wiggins
  • Publication number: 20100174260
    Abstract: A personal care absorbent article such as a disposable diaper, sanitary pad or tampon, wound dressing or bandage which includes a nonwoven web material made from a plurality of polymeric fibers having at least one treatment chemistry suitable for modifying at least one characteristic of a high viscoelasticity fluid upon contact with the high viscoelasticity fluid. In accordance with one particularly preferred embodiment, the treatment chemistry is suitable for immobilizing the high viscoelasticity fluid within the nonwoven web material.
    Type: Application
    Filed: March 3, 2010
    Publication date: July 8, 2010
    Applicant: KIMBERLY-CLARK WORLDWIDE, INC.
    Inventors: Robert Cosmo Di Luccio, Michael Allen Daley, David Charles Potts, Gregory Marc Lefkowitz, Jack Nelson Lindon, David Martin Jackson, Matthew David Young, Cheryl Ann Mocadlo, Candace Dyan Krautkramer
  • Patent number: 7750203
    Abstract: An absorbent article, preferably a disposable absorbent article such as a diaper, is disclosed that provides an improved immobilization of absorbent polymer material when the article is fully or partially urine loaded. This absorbent core is useful for providing an absorbent article of increased wearing comfort. Specifically disclosed is an absorbent core useful for an absorbent article comprising a substrate layer and absorbent material, the absorbent material comprising an absorbent polymer material, the absorbent material optionally comprising absorbent fibrous material, the absorbent fibrous material not representing more than 20% of the weight of absorbent polymer material, wherein the absorbent material is immobilized when wet such that the absorbent core achieves a wet immobilization of more than 50%, preferably of more than 60%, 70%, 80% or 90% according to the Wet Immobilization Test described herein.
    Type: Grant
    Filed: February 11, 2004
    Date of Patent: July 6, 2010
    Assignee: The Procter & Gamble Company
    Inventors: Uwe Jurgen Becker, Ludwig Busam, Bruno Johannes Ehrnsperger, Torsten Lindner, Siegfried Link, Volker Maier, Sanaul Kabir Siddiquee, Gabriele Stiehl, Thomas Tombuelt
  • Publication number: 20100160883
    Abstract: The present invention concerns highly swellable absorption mediums with a reduced caking tendency at high humidity and/or high temperatures, wherein a swellable polymer is coated with a non-ionic, nitrogen-containing surfactant and optionally a Lewis acid and then reacted by heating.
    Type: Application
    Filed: March 5, 2010
    Publication date: June 24, 2010
    Inventors: Gerd Jonas, Richard Mertens, Markus Frank