Cellulose Or Cellulosic Materials Patents (Class 604/374)
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Publication number: 20120316528Abstract: Disposable absorbent diapers are provided with improved comfort, fit and liquid transportation. The absorbent core of the disposable absorbent diapers includes at least one absorbent structure comprising a substrate layer and an absorbent layer with channels.Type: ApplicationFiled: June 8, 2012Publication date: December 13, 2012Inventors: Carsten Heinrich Kreuzer, Rodrigo Rosati, Blanca Arizti, Hans Adolf Jackels, Ernesto G. Bianchi, Donald Carroll Roe
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Patent number: 8329978Abstract: An absorbent product has a top sheet, an absorbent core and a back sheet. The absorbent core includes 40% by weight or more of high absorbent resin powder and it is possible to slim down the absorbent core while keeping a sufficient amount of absorption to thereby achieve slimming down of the absorbent product. A top sheet lower part contacting the high absorbent resin powder in the absorbent core includes hydrophilic fibers having water retention characteristics, and moisture is temporarily retained in the top sheet lower part before reaching the absorbent core and rapidly disperses in a range facing the absorbent core of the top sheet lower part. As a result, it is possible to reliably absorb the moisture of excrement in the absorbent core and to simplify a structure of the absorbent product.Type: GrantFiled: June 10, 2008Date of Patent: December 11, 2012Assignee: Livedo CorporationInventors: Kenichi Uchimoto, Yasuji Yasumitsu
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Publication number: 20120302983Abstract: The invention relates to an absorbent structure having a sequence of layers, comprising at least one first and one second outer layer and at least one liquid storage layer arranged therebetween, wherein the layers are arranged on top of each other and form a layer structure, wherein at least the liquid storage layer comprises a cellulose material, preferably cellulose fibers, and a super-absorbent polymer SAP, preferably SAP particles and/or SAP fibers, wherein the liquid storage layer comprises at least less, preferably no, binder than liquid-storing layers of the absorbent structure adjacent to the liquid storage layer. The absorbent structure has particularly high flexibility in the wet and the dry state. It can preferably be used in disposable items. The invention further relates to a method for producing the absorbent structure and to a device for producing same.Type: ApplicationFiled: January 28, 2011Publication date: November 29, 2012Applicant: Glatfelter Falkenhagen GmbHInventors: Henning Röttger, Stefanie Lutter, Ralf Ehmke
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Publication number: 20120296302Abstract: The present invention relates to an airlaid sheet material comprising a dry laid fibrous web and a latex coating on both surfaces thereof in selected amounts. The airlaid sheet material can be an absorbent structure for absorption of fluids.Type: ApplicationFiled: May 15, 2012Publication date: November 22, 2012Inventors: Maurizio Tamburro, Giovanni Carlucci
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Patent number: 8303560Abstract: The composite material comprises an elastic film (F), made of polymer material, and a coating made of flocked fibers (13) on at least one face. The fibers are fixed to the film by a layer (C) of bonding material.Type: GrantFiled: April 7, 2006Date of Patent: November 6, 2012Assignee: Fintex & Partners Italia S.p.A.Inventors: Riccardo Cecconi, Barbara Bulleri, Chiara Allegrini, Stefano Muroni, Claudio Giacometti
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Publication number: 20120277710Abstract: Absorbent members and methods of making the same are disclosed. In one embodiment, the absorbent member is a unitary absorbent fibrous web having a density profile through its thickness. In one embodiment, the density profile is relatively centered through the thickness of the web and the maximum density of the web is located between about 35% and about 65% of the distance through the thickness of the web. In one embodiment, the method involves subjecting a precursor web to at least one cycle (or pass) through a mechanical deformation process. Typically, the method involves subjecting the precursor web to multiples cycles (or passes) through a mechanical deformation process.Type: ApplicationFiled: April 25, 2012Publication date: November 1, 2012Inventors: Luigi Marinelli, Kirk Wallace Lake, Jill Marlene Orr, John Brian Strube, Keith Robert Priessman, Carmine Cimini, Mario Dipilla
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Publication number: 20120277711Abstract: An absorbent article with an annular absorbent member. The absorbent article has a liquid-permeable top sheet, a liquid-impermeable back sheet, an annular absorbent member and a second absorbent member. The annular absorbent member is disposed between the top sheet and the back sheet. The annular absorbent member absorbs and retains a liquid passing through the top sheet. The annular absorbent member defines an aperture in a central portion thereof. The second absorbent member is disposed between the annular absorbent member and the back sheet. The second absorbent member has a visible area aligned with a position of the aperture of the annular absorbent member.Type: ApplicationFiled: October 29, 2010Publication date: November 1, 2012Applicant: YUHAN-KIMBERLY, LIMITEDInventors: Hyong Bom Kim, Eun Jung Kang, Hyung Woo Park, Seong Dae Roh
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Publication number: 20120277705Abstract: Absorbent members and methods of making the same are disclosed. In one embodiment, the absorbent member is a unitary absorbent fibrous web having a density profile through its thickness. In such an embodiment, the density profile of the fibrous web is skewed toward one of the surfaces of the fibrous web. In such embodiments, the maximum density of the web may be located outside of the central 30% zone of thickness of the web.Type: ApplicationFiled: April 26, 2011Publication date: November 1, 2012Inventors: Luigi Marinelli, Kirk Wallace Lake, Jill Marlene Orr, Paul Thomas Weisman, Carmine Cimini, Mario Dipilla, Keith Robert Priessman
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Publication number: 20120277707Abstract: Absorbent members and methods of making the same are disclosed. In one embodiment, the absorbent member is a unitary absorbent fibrous web having a density profile through its thickness. In one embodiment, the density profile of the fibrous web is skewed toward one of the surfaces of the fibrous web. In such embodiments, the maximum density of the web may be located outside of the central 30% zone of the thickness of the web. In one embodiment, the method involves subjecting a precursor web to at least one cycle (or pass) through a mechanical deformation process. Typically, the method involves subjecting the precursor web to multiples cycles (or passes) through a mechanical deformation process.Type: ApplicationFiled: April 26, 2011Publication date: November 1, 2012Inventors: Jill Marlene Orr, Luigi Marinelli, John Brian Strube, Keith Robert Priessman, Carmine Cimini, Mario Dipilla
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Publication number: 20120277708Abstract: Absorbent members and methods of making the same are disclosed. In one embodiment, the absorbent member is a unitary absorbent fibrous web having a density profile through its thickness. In such an embodiment, the density profile may be relatively centered through the thickness of the web and the maximum density of the web is located between about 35% and about 65% of the distance through the thickness of the web.Type: ApplicationFiled: April 25, 2012Publication date: November 1, 2012Inventors: Luigi Marinelli, Kirk Wallace Lake, Jill Marlene Orr, Paul Thomas Weisman, Carmine Cimini, Mario Dipilla, Keith Robert Priessman
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Publication number: 20120277709Abstract: Absorbent members and methods of making the same are disclosed. In one embodiment, the absorbent member is a unitary absorbent fibrous web having a density profile through its thickness. In such an embodiment, the density profile of the fibrous web is skewed toward one of the surfaces of the fibrous web. In such embodiments, the maximum density of the web may be located outside of the central 30% zone of thickness of the web.Type: ApplicationFiled: April 25, 2012Publication date: November 1, 2012Inventors: Luigi Marinelli, Kirk Wallace Lake, Jill Marlene Orr, Paul Thomas Wiesman, Carmine Cimini, Mario Dipilla, Keith Robert Priessman
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Publication number: 20120277706Abstract: Absorbent members and methods of making the same are disclosed. In one embodiment, the absorbent member is a unitary absorbent fibrous web having a density profile through its thickness. In one embodiment, the density profile is relatively centered through the thickness of the web and the maximum density of the web is located between about 35% and about 65% of the distance through the thickness of the web. In one embodiment, the method involves subjecting a precursor web to at least one cycle (or pass) through a mechanical deformation process. Typically, the method involves subjecting the precursor web to multiples cycles (or passes) through a mechanical deformation process.Type: ApplicationFiled: April 26, 2011Publication date: November 1, 2012Inventors: Luigi Marinelli, Kirk Wallace Lake, Jill Marlene Orr, John Brian Strube, Keith Robert Priessman, Carmine Cimini, Mario Dipilla
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Publication number: 20120277704Abstract: Absorbent members and methods of making the same are disclosed. In one embodiment, the absorbent member is a unitary absorbent fibrous web having a density profile through its thickness. In such an embodiment, the density profile may be relatively centered through the thickness of the web and the maximum density of the web is located between about 35% and about 65% of the distance through the thickness of the web.Type: ApplicationFiled: April 26, 2011Publication date: November 1, 2012Inventors: Luigi Marinelli, Kirk Wallace Lake, Jill Marlene Orr, Paul Thomas Weisman, Carmine Cimini, Mario Dipilla, Keith Robert Priessman
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Patent number: 8293969Abstract: An absorbent product has a top sheet, an absorbent core and a back sheet. The absorbent core includes 40% by weight or more of high absorbent resin powder and it is possible to slim down the absorbent core while keeping a sufficient amount of absorption to thereby achieve slimming down of the absorbent product. A top sheet lower part contacting the high absorbent resin powder in the absorbent core includes hydrophilic fibers having water retention characteristics, and moisture is temporarily retained in the top sheet lower part before reaching the absorbent core and rapidly disperses in a range facing the absorbent core of the top sheet lower part. As a result, it is possible to reliably absorb the moisture of excrement in the absorbent core and to simplify a structure of the absorbent product.Type: GrantFiled: June 10, 2008Date of Patent: October 23, 2012Assignee: Livedo CorporationInventors: Kenichi Uchimoto, Yasuji Yasumitsu
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Patent number: 8263820Abstract: Absorbent core for disposable absorbent articles. The core comprises a substrate layer and a non uniform layer of absorbent material comprising an absorbent polymer material and a first and second surface. The non uniform layer of absorbent material comprises a layer of a thermoplastic material comprising a layer of thermoplastic material first surface and a layer of thermoplastic material second surface. The non uniform layer of absorbent material second surface is in at least partial contact with the substrate layer. Portions of the layer of thermoplastic material second surface are in direct contact with the substrate layer first surface and portions of the layer of thermoplastic material second surface are in direct contact with the non uniform layer of absorbent material first surface. The substrate layer comprises a fibrous material substantially free of cellulose fibers, the substrate layer having a basis weight from about 25 g/m2 to 120 g/m2.Type: GrantFiled: July 28, 2008Date of Patent: September 11, 2012Assignee: The Procter and Gamble CompanyInventors: Giovanni Carlucci, Maurizio Tamburro, Alessandro Gagliardini, Evelina Toro, Pancrazio Veronese
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Publication number: 20120226253Abstract: An absorbent article comprising a top sheet, a back sheet and an absorbent laminate disposed between the top sheet and the back sheet, wherein: the absorbent laminate comprises an upper sheet-shaped absorbent layer, a fiber assembly layer and a lower sheet-shaped absorbent layer provided in this order from the top sheet side; the fiber assembly layer contains pulp fibers; and each of the upper sheet-shaped absorbent layer and the lower sheet-shaped absorbent layer contains an absorbent polymer but does not contain a pulp fiber between nonwoven fabric sheets.Type: ApplicationFiled: November 2, 2011Publication date: September 6, 2012Inventor: Makiko Urushihara
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Patent number: 8258366Abstract: A disposable hygiene article has an absorbing element component (12) which is used for storing body liquids and can also contain superabsorbent materials. The absorbing element component (12) is provided with a first area (18, 20), an absorbent material of which has a mass per unit area that increases towards the lateral edges in the transversal direction (16) of the hygiene article. The storage capacity of a section (44) which extends along 40 to 90 percent of the length of the absorbing element component (12) in the longitudinal direction (14) is substantially constant relative to the longitudinal direction (14).Type: GrantFiled: September 30, 2009Date of Patent: September 4, 2012Assignee: Paul Hartmann AGInventor: Carsten Wendelstorf
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Patent number: 8258368Abstract: A reusable and absorptive mat for the absorption, dispersion and retention of a liquid is disclosed. The absorptive mat comprises a plurality of non-woven layers, of carded and randomly laid viscose rayon fibres having a cross-section of substantially rigid multi-limbed configuration. The layers are stitchbonded in an as laid state, thereby substantially limiting entanglement and breaking of individual fibres. The stitchbonding is performed with a thread under limited tension so as to maintain uniformity of the absorptive mat. Also disclosed is a method of manufacturing a reusable and washable article for the absorption, dispersion and retention of a liquid comprising providing a plurality of viscose rayon fibres, carding the plurality of fibres, randomly laying the carded fibres into a continuous random web structure and stitchbonding the continuous random web structure in an as laid state.Type: GrantFiled: March 5, 2010Date of Patent: September 4, 2012Inventor: Suzanne Gillies
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Patent number: 8247637Abstract: A mini pad is provided with a chilled skim milk additive which is useful for reducing vulvar inflammation and lowering the acidity of a female's vulva which result from vaginal secretions which leak onto the tissue of the vulva. The mini pad can be provided with a self-contained cooling component which can be frozen or, when compressed and ruptured, will lower the temperature of the mini pad to provide the soothing cold. The skim milk can be incorporated into the mini pad in several different ways. The mini pad is useful for soothing and healing vulvar irritation, and it is mobile and can be easily used during normal daily activities without any problems whatsoever.Type: GrantFiled: July 20, 2005Date of Patent: August 21, 2012Assignee: Femaceuticals, LLCInventors: Stephen M. Renzin, William Schmitt
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Patent number: 8247641Abstract: 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: GrantFiled: May 16, 2001Date of Patent: August 21, 2012Assignee: Rayonier TRS Holdings Inc.Inventors: Phyllis Leithem, Charles A. Kremers, W. Paul Harrell, Stephen Lewis, Karl D. Sears, Quan He, Peter R. Abitz
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Publication number: 20120209232Abstract: Embodiments herein provide hemostatic compositions comprising a plurality of liquid-expandable articles arranged on a backing material. In general, embodiments include methods for treating hemorrhagic injuries. More specifically, there is provided a method to effect rapid hemostatic response and control hemorrhage by introducing a hemostatic composition into a bleeding wound cavity. An embodiment also provides a method of preparing or manufacturing such a hemostatic composition.Type: ApplicationFiled: February 16, 2012Publication date: August 16, 2012Inventor: Andrew Barofsky
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Publication number: 20120197225Abstract: A method is disclosed for modifying the physical characteristics of a web which involves passing the web between at least one pair of interengaged rolls to incrementally stretch the web, and then withdrawing the incrementally stretched web from between the rolls under tension. A web modified according to the disclosed method has desirable breathability and liquid impermeability, as well as extensibility and a soft, cloth-like textured surface.Type: ApplicationFiled: April 13, 2012Publication date: August 2, 2012Inventors: Barry Jay Anderson, Todd Leon Mansfield, George Christopher Dobrin, Suna Polat
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Publication number: 20120191055Abstract: It is an object of the invention to provide an absorbent article that is resistant to twisting and flattening, and that is superior in terms of fluid absorption rate, fluid diffusibility, absorbed fluid retention volume and fluid retention. The absorbent article comprises a top sheet on the skin contact side, a back sheet on the non-skin contact side, and an absorbent body situated between the two sheets, wherein the absorbent body comprises a bulky absorbent sheet, and the bulky absorbent sheet comprises heat-expanding particles that are dispersed in the bulky absorbent sheet and have been expanded by heat.Type: ApplicationFiled: August 27, 2010Publication date: July 26, 2012Applicant: UNICHARM CORPORATIONInventors: Satoshi Nozaki, Tsutomu Shirai, Toshiyuki Tanio, Kiyoko Nishimura
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Publication number: 20120165769Abstract: The present invention relates to a sanitary napkin whose securing means includes a braid of absorbent material. The braid structure maximizes absorbency, while minimizing bulk and thus allows the pad to be comfortably held in place during use, in much the same way that the popular thong underwear are held.Type: ApplicationFiled: March 1, 2012Publication date: June 28, 2012Applicant: MERIMONT USInventor: Gabriela Roche del Ayala
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Publication number: 20120143161Abstract: A disposable absorbent product (20) such as, e.g. a baby diaper, an adult incontinence pad, a sanitary napkin or the like, includes a liquid pervious topsheet (24), a liquid impervious backsheet (26), and an absorbent core (28) positioned between the topsheet (24) and the backsheet (26). The absorbent core (28) has a liquid receiving surface directed towards said topsheet (24), and the absorbent core (28) is provided with at least one embossing (50) forming a channel for liquid drainage at said receiving surface. Preferably an acquisition layer (40) is provided between the topsheet (24) and the absorbent core (28). The acquisition layer preferably extends into the embossing (50), while a resilient absorbent member (30) is preferably provided between the absorbent core (28) and the acquisition layer (40) in the form of stripes arranged longitudinally spaced along the upper longitudinal sides of the channel (50) formed by the embossing.Type: ApplicationFiled: February 13, 2012Publication date: June 7, 2012Inventors: Remo Di Girolamo, Ivana Spinelli, Fabrizio Tinghino
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Patent number: 8183430Abstract: An absorbent article, especially an incontinence pad, having a length and a width extension, the length being greater than the width, and including absorbent core material, wherein the absorbent core material forms a central portion (6) and a pair of longitudinally extending side portions (7), the flexural rigidity of the article (1) at the side portions (7) is between 3 and 20% of the flexural rigidity of the article (1) of the central portion (6) at a location opposite the side portions (7), preferably between 4 and 15%, most preferred between 4 and 10%.Type: GrantFiled: December 15, 2005Date of Patent: May 22, 2012Assignee: SCA Hygiene Products ABInventors: Carin Håkansson, Anna Klinte Olsson, Kent Hermansson, Elisabeth Boissier
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Publication number: 20120101460Abstract: The invention relates to a fibrous porous fluid absorbent material comprising a nonwoven, in particular made by an Airlaid process and comprising fibers at least 50% of said fibers being cellulosic fibers. The fibrous porous fluid absorbent material comprises a core wherein said fibers of said core are non-connected or only partially connected and crosslinked with each other and at least one perforated surface layer having a perforation. The fibers of the surface layer are connected to each other and the flexural rigidity of said fibrous porous fluid absorbent material measured according to EDANA Standard Test Method 90.5 is reduced by at least 20%, preferably by at least 30%, more preferably by at least 40%, most preferably by at least 50%, compared to a corresponding non perforated fibrous porous fluid absorbent material comprising a core and a non perforated surface layer.Type: ApplicationFiled: July 1, 2010Publication date: April 26, 2012Applicant: Glatfelter Falkenhagen GmbHInventors: Ralf Ehmke, Henning Röttger
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Publication number: 20120089108Abstract: A water-absorbent sheet comprising a structure in which an absorbent layer containing a water-absorbent resin and an adhesive is sandwiched with a hydrophilic nonwoven fabric, wherein the water-absorbent sheet has a structure in which the absorbent layer is fractionated into a primary absorbent layer and a secondary absorbent layer with a substrate layer formed by laminating two or more layers of a substrate having breathability adhered together with an adhesive, wherein the substrate layer satisfies the following requirements (1) and (2): (1) the substrate layer having a basis weight of 25 g/m2 or more; and (2) the substrates having breathability being adhered therebetween with an adhesive in an amount of from 0.1 to 50 g/m2.Type: ApplicationFiled: June 8, 2010Publication date: April 12, 2012Applicant: Sumitomo Seika Chemicals Co., Ltd.Inventors: Koji Ueda, Tetsuhiro Hinayama, Syuji Tsuno, Masayoshi Handa
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Patent number: 8148598Abstract: A method of making an absorbent composite that includes a first fabric, a second fabric, and particles positioned between the two fabrics and absorbent articles made from the absorbent composite. The particles are secured between the two fabric using adhesive, thermal plastic or combinations thereof. The fabrics are bonded together in a manner that limits particle movement between the fabrics. The bond pattern may define pockets or other shapes. In applications in which the bond pattern forms pockets, the particles may be positioned in the pockets. The particles may be SAP particles or other particles with advantageous properties.Type: GrantFiled: February 22, 2006Date of Patent: April 3, 2012Assignee: DSG Technology Holdings LimitedInventors: Patrick Tsang, Kuo-Shu Edward Chang, Andrew Wright
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Patent number: 8129582Abstract: Disclosed is an absorbent article including a temperature change member. The temperature change member includes a matrix of fibers and temperature change material intermixed within the matrix of fibers.Type: GrantFiled: June 1, 2005Date of Patent: March 6, 2012Assignee: Kimberly-Clark Worldwide, Inc.Inventors: David M. Jackson, Gabriel H. Adam, Andrew M. Long, Shirlee A. Weber, Davis Dang H. Nhan, Christopher P. Olson
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Publication number: 20120053545Abstract: The present invention relates to a disposable absorbent pad comprising multiple layers. In particular, the absorbent pad of the present invention maintains skin dryness by absorbing moisture while preventing leakage to the skin or the bed linens, allowing air circulation at the surface of the patient's skin to prevent heat buildup, and is strong enough to allow the patient to be repositioned, even when the pad is wet. In a particular embodiment the first layer is comprised of a fluid-permeable, porous material, the second layer is disposed under the first layer and is comprised of at least one super absorbent material, and a base layer disposed under the second layer.Type: ApplicationFiled: August 26, 2010Publication date: March 1, 2012Inventors: Dan Love, Scott A. Smith, Steve A. Maskrey, Paul L. Bottcher
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Patent number: 8093448Abstract: An absorbent article including a absorbent core having a plurality of first regions and a second region, each one of said first regions being arranged in spaced relationship from each of the other first regions and each of the first regions being entirely surrounded by the second region.Type: GrantFiled: August 5, 2008Date of Patent: January 10, 2012Assignee: Johnson & Johnson Ind. E. Com LTDAInventors: Antonio Carlos Ribeiro De Carvalho, Márcia Helena Teixeira Fajolli, Maria Márcia R. Caldas Salles
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Patent number: 8080489Abstract: The disclosure relates to pre-moistened webs and wipes having visible compressed sites that provide the perception of a cloth-like texture. The disclosure also relates to a nonwoven web made of non-thermoplastic fibers with at least one compressed site on the surface of the web that remains visible when the web is pre-moistened.Type: GrantFiled: January 11, 2010Date of Patent: December 20, 2011Assignee: The Procter & Gamble CompanyInventor: Jonathan Paul Brennan
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Publication number: 20110270205Abstract: An absorbent medical body for removing wound fluids from human and/or animal body cavities includes a material which holds the absorbent body together in a compressed form and can be removed upon contact with a biocompatible liquid.Type: ApplicationFiled: December 3, 2009Publication date: November 3, 2011Applicant: AESCULAP AGInventors: Erich Odermatt, Ingo Berndt, Silke König
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Publication number: 20110270207Abstract: The present invention relates to rhamnolipid-based formulations to clean, disinfect, deodorize, and act as an antimicrobial and antifungal agent for living and working environments. In addition, the present invention relates to the use of rhamnolipids to create a bio-film when applied to a surface, which prevents the growth of bacteria and fungus. This technique is especially useful to create clean surface areas for medical procedures, chemical testing, during food preparation, as well as for daycare centers and hospitals.Type: ApplicationFiled: July 11, 2011Publication date: November 3, 2011Inventor: Keith DeSanto
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Patent number: 8043272Abstract: A collection insert for use in a diaper for the testing of the urine of a baby is generally disclosed. The collection insert is configured to collect and temporarily retain the urine, allowing the urine to be later tested for the presence of absence of an analyte. The collection insert is fluidly isolated from the absorbent core of the diaper, and can be positioned between the bodyside liner and the outer cover or located in a pocket defined by the bodyside liner. The collection insert can include an insert cover and a collection core, such as a sponge, cellulosic material, polymeric nonwoven material, and the like. Additionally, the collection insert can be substantially free of superabsorbent material.Type: GrantFiled: April 30, 2007Date of Patent: October 25, 2011Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Andrew Long, Shirlee Ann Weber
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Patent number: 8039684Abstract: An absorbent article includes at least one liquid-permeable layer material (105) and an absorbent structure (106), the absorbent structure (106) having the ability to expand on wetting, which entails that the absorbent structure (106) displays a first volume in dry condition and a second volume in completely expanded wet condition, the second volume being greater than the first volume. The liquid-permeable layer material (105) encloses the absorbent structure (106) so that the absorbent structure (106) is prevented from reaching complete expansion during wetting.Type: GrantFiled: December 21, 2005Date of Patent: October 18, 2011Assignee: SCA Hygiene Products ABInventors: Ted Guidotti, Gunnar Edvardsson
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Patent number: 8034325Abstract: A discrete powder which includes particles in which a biliquid foam has been entrapped within a matrix of a polymeric material. A process for the preparation of these discrete powders includes the steps of: i) preparing a biliquid foam, ii) forming a dispersion of the biliquid foam in an aqueous solution, suspension or dispersion of a polymeric material, and iii) subjecting the dispersion to drying under conditions such that a discrete powder is formed.Type: GrantFiled: June 24, 2003Date of Patent: October 11, 2011Assignee: Drug Delivery Solutions LimitedInventors: Nigel Stuart Crutchley, David Charles Fletcher Gladman, Stephen John Lenon
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Patent number: 8034990Abstract: An absorbent article such as a diaper, panty diaper, panty liner, sanitary napkin or incontinence protection, wherein at least one part of this absorbent article has a pattern of at least one hydrophilic and at least one hydrophobic region wherein the at least one hydrophilic region and/or the at least one hydrophobic region are present as a coating on the part of the absorbent article. The coated part is preferably a liquid-permeable topsheet.Type: GrantFiled: October 5, 2005Date of Patent: October 11, 2011Assignee: SCA Hygiene Products ABInventors: Carolyn Berland, Shabira Abbas
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Publication number: 20110238025Abstract: This invention relates to absorbent materials useful in the manufacture of absorbent articles, in particular dressings for the advanced wound care market. The absorbent materials of the present invention are sulfonated polysaccharides, particularly water-insoluble cellulose alkyl sulfonates in which the cellulose is substituted by one type of alkyl sulfonate group. The invention also provides a process for the manufacture of such materials. The preferred cellulose alkyl sulfonate described herein is cellulose ethyl sulfonate. Reinforcing fibers and/or antimicrobial agents are optionally applied to the cellulose alkyl sulfonate.Type: ApplicationFiled: November 27, 2009Publication date: September 29, 2011Inventor: Stephen Law
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Publication number: 20110208140Abstract: A disposable absorbent article may include a chassis, an absorbent core, a pair of elastically elongatable ears and a pair of fastening tabs. The elastically elongatable ears and the fastening tabs have a transverse axis. The ears are connected to the chassis such that the transverse axis of the fastening tabs is located in specific portions of the article. The absorbent core is free of cellulosic fibers.Type: ApplicationFiled: February 25, 2011Publication date: August 25, 2011Inventors: Donald Carroll Roe, Mark James Kline
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Publication number: 20110208145Abstract: 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: ApplicationFiled: February 2, 2011Publication date: August 25, 2011Inventors: Le Zhang, Yunzhang Wang, Carnevale Sally, Robert M. MacMeccan, Jeeyoung Choi, Keith A. Keller, Patrick R. Carroll, James M. Spry, Robert Champion
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Publication number: 20110208142Abstract: A disposable absorbent article may include a chassis, an absorbent core, a pair of elastically elongatable ears and a pair of fastening tabs. The elastically elongatable ears and the fastening tabs have a transverse axis. The ears are connected to the chassis such that the transverse axis of the fastening tabs is located in specific portions of the article. The absorbent core is free of cellulosic fibers.Type: ApplicationFiled: February 25, 2011Publication date: August 25, 2011Inventors: Donald Carroll Roe, Mark James Kline
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Patent number: 7994385Abstract: The absorbent article according to the present invention includes a laminate structure including cover, transfer layer, core and barrier, the absorbent core having a first central region and second region concentrically surrounding the first region.Type: GrantFiled: August 5, 2008Date of Patent: August 9, 2011Assignee: Johnson & Johnson Ind. E Com. LtdaInventor: Francisco J. V. Hernandez
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Publication number: 20110184365Abstract: An absorbing structure has a sequence of layers, including at least first and second outer layers with at least a liquid storage layer disposed therebetween. The layers are disposed on top of one another and form a layered structure. At least the liquid storage layer has a cellulose material, preferably cellulose fibers, and a super absorbing polymer SAP, preferably SAP particles and/or SAP fibers. The liquid storage layer uses at least less binder material than the other liquid storing plies of the absorbing structure. The liquid storing plies are adjacent to the liquid storage layer. Preferably, the liquid storage layer does not have binder material.Type: ApplicationFiled: January 28, 2010Publication date: July 28, 2011Inventors: Henning Röttger, Stefanie Lutter, Ralf Ehmke
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Publication number: 20110152813Abstract: An absorbent article includes a liquid pervious body side liner, a liquid impervious outer cover, and an absorbent core located between the body side liner and the outer cover. The absorbent core includes a first absorbent portion, a second absorbent portion, and a channel portion. The channel portion extends the entire length of the absorbent core. The first absorbent portion, the second absorbent portion, and the channel portion all lie in the same plane. The channel portion completely separates the first absorbent portion from the second absorbent portion and the channel portion is a stabilized, high-loft material with permanent thermal bond points.Type: ApplicationFiled: December 17, 2009Publication date: June 23, 2011Inventor: Daniel Lee Ellingson
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Patent number: 7959762Abstract: A method for making mixed polymer composite fibers in which a carboxyalkyl cellulose and a starch are blended in water to provide an aqueous gel; the aqueous gel treated with a first crosslinking agent to provide a crosslinked gel; the crosslinked gel mixed with a water-miscible solvent to provide fibers; and the fibers treated with a second crosslinking agent to provide crosslinked mixed polymer composite fibers.Type: GrantFiled: June 30, 2008Date of Patent: June 14, 2011Assignee: Weyerhaeuser NR CompanyInventor: S Ananda Weerawarna
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Patent number: 7951127Abstract: 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: GrantFiled: December 15, 2006Date of Patent: May 31, 2011Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Lisa M. Sanabria, Eugenio G. Varona
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Publication number: 20110125119Abstract: The present invention relates to fluid-absorbent articles, comprising an upper liquid-pervious layer, a lower liquid-impervious layer, a fluid-absorbent core, wherein the fluid-absorbent core comprises a fibrous material and 10 to 95% by weight of spherical fluid-absorbent polymer particles, and an acquisition distribution layer, wherein the acquisition distribution layer comprises a fibrous material and 0 to 20% by weight of spherical fluid-absorbent polymer particles.Type: ApplicationFiled: July 30, 2009Publication date: May 26, 2011Applicant: BASF SEInventors: Matthias Weismantel, Rüdiger Funk, Ulrich Schröder, Marco Krüger, John Joseph Louden
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Patent number: 7943814Abstract: Differentially densified fibrous structures, methods for making same, and processes for treating fibers used in the fibrous structures are provided. More particularly, fibrous structures comprising two or more regions, at least one of which exhibits a density that is at least 1.6 times greater than another region within the fibrous structure, methods for making such fibrous structures and non-naturally occurring fibers useful in such fibrous structures are provided.Type: GrantFiled: March 1, 2006Date of Patent: May 17, 2011Assignee: The Procter & Gamble CompanyInventors: Robert Stanley Ampulski, Dale Gary Kavalew