Containing Layers Having Differing Absorption Characteristics (e.g., Flow Control, Wicking, Etc.) Patents (Class 604/378)
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Patent number: 7670665Abstract: An absorbent article having a topsheet, a backsheet, and an absorbent core disposed between the topsheet and the backsheet. The topsheet has a first side and a second side, the first side being a body-facing side. The topsheet defines a CD-MD plane and includes a fibrous nonwoven web and tufts, the tufts having fibers of the fibrous nonwoven web. The topsheet further includes first, second and third zones, each zone being characterized in a Z-direction by the zone fiber orientation, wherein the first and third zones are displaced relative to each other and each include fibers having portions orientated substantially parallel to said CD-MD plane of the topsheet. The second zone is intermediate and adjacent to the first and third zones, the second zone including substantially reoriented fibers that are substantially vertically oriented with respect to the CD-MD plane of said topsheet.Type: GrantFiled: January 8, 2007Date of Patent: March 2, 2010Assignee: The Procter & Gamble CompanyInventors: Jody Lynn Hoying, John Lee Hammons, Susan Nicole Lloyd, Robert Haines Turner, John Joseph Curro
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Patent number: 7670324Abstract: A disposable absorbent article adapted to be worn about a lower torso of a human body and having a chassis, a non-removable absorbent core component disposed in a crotch region of the chassis, and a replaceable absorbent core component disposed in capillary liquid communication with the non-removable absorbent core component and having longitudinally disposed regions of liquid permeability and liquid impermeability on the same surface. The replaceable absorbent core component may be removed and a like component may be substituted without the removal of the absorbent article from the wearer. The replaceable absorbent core component may be disposed inside an openable chassis pocket, with access for its removal and replacement provided by an aperture in a backsheet, an openable end of an external pocket, or an openable end of an internal pocket formed at an area of a waist end edge where the backsheet and a topsheet may be separated.Type: GrantFiled: December 3, 2002Date of Patent: March 2, 2010Assignee: The Procter and Gamble CompanyInventors: Gary Dean LaVon, Theodora Beck, Gerald Alfred Young, Stephen Lebeuf Hardie, Thomas Henrich, Edward John Milbrada
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Publication number: 20100049154Abstract: A dynamically deformable sanitary napkin for insertion within a person's intergluteal cleft has a plurality of functional layers serving absorbent, protective, and mechanical purposes and is held in position by the restorative force of a spring means.Type: ApplicationFiled: August 22, 2008Publication date: February 25, 2010Inventor: Judy Burd
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Patent number: 7666174Abstract: Here is disclosed a disposable diaper, which includes a liquid-absorbent zone in a crotch region having first through fourth sections. A stiffness of the first and second sections formed from top- and backsheets is lower than a stiffness of the third and fourth sections formed from the top- and backsheets and an absorbent core. Stretchably elastic members extending in a longitudinal direction are contractibly attached to the fourth section. A liquid-absorbent zone in the crotch region is formed with a concavity (feces pocket) as the fourth section contract in the longitudinal direction under a contractile force of the elastic members.Type: GrantFiled: April 23, 2004Date of Patent: February 23, 2010Assignee: Uni-Charm CorporationInventors: Kazuaki Onishi, Yusuke Kawakami
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Patent number: 7663016Abstract: A disposable absorbent article 10 that includes an absorbent mat 13 between a liquid permeable top sheet 11 and a liquid impermeable back sheet 12, the absorbent mat 13 including a sheet-like water absorbent layer 15 that contains water absorbent resin powders 14 but that does not contain pulp fibers therein, and fiber assembly layers 17A and 17B each of which mainly consists of the pulp fibers 16, sequentially from the side of the top sheet 11, the sheet-like water absorbent layer 15 alternately including a plurality of water absorbent resin powder existing regions 15a, in each of which the water absorbent resin powders 14 are wrapped in two non-woven fabric sheets 20 and 21, and a plurality of water absorbent resin powder non-existing regions 15b, in each of which the water absorbent resin powders 14 are not wrapped in the two non-woven fabric sheets 20 and 21, in a width direction, wherein rising flaps 18 are provided on both sides of the sheet-like water absorbent layer 15, respectively.Type: GrantFiled: March 11, 2005Date of Patent: February 16, 2010Assignee: Livedo CorporationInventor: Taichiro Suzuki
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Patent number: 7662136Abstract: A disposable absorbent article having a liner, an outer cover and an absorbent body therebetween for absorbing liquid body waste penetrating the liner. In one embodiment, the absorbent body has an inner layer and an outer layer. The inner layer has a lower absorbent capacity per unit weight than the outer layer. A flow control layer between the inner layer and the outer layer at least retards the flow of liquid body waste from the inner layer to the outer layer to facilitate a prolonged feeling of wetness to the wearer. In another embodiment, a surge layer lies between the liner and an absorbent body. A flow control layer between the liner and the surge layer, or between the surge layer and the absorbent body, at least retards the flow of liquid body waste through the surge layer toward the absorbent body.Type: GrantFiled: October 18, 2004Date of Patent: February 16, 2010Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Richard L. Underhill, Michael J. Niemeyer, Marianne K. Leick
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Publication number: 20100036339Abstract: An absorbent article having a topsheet in facing relationship with an absorbent core. The topsheet has a pair of tuft region lateral boundaries. Each tuft region lateral boundary is defined by a line or a portion of a line separating a plurality of first tufts from a plurality of second tufts, first tufts and second tufts differing in either height or area density. The tuft region lateral boundaries are on opposing sides of the longitudinal centerline. The tuft region lateral boundaries extend longitudinally along transversely opposite sides of the topsheet and are spaced apart from each other by a distance gradually increasing or gradually decreasing from a minimum or maximum, respectively, at a parallel transverse axis towards longitudinally opposing ends of the tuft region lateral boundaries. The tufts have fibers integral with and extending from the fibrous nonwoven web.Type: ApplicationFiled: March 31, 2009Publication date: February 11, 2010Inventors: John Lee Hammons, Luisa Valerio Gonzalez, Sybille Fuchs
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Publication number: 20100036347Abstract: An absorbent article having a topsheet and an absorbent core. The topsheet has a pair of tuft region lateral boundaries. Each tuft region lateral boundary is defined by a line or a portion of a line separating a plurality of the tufts from a portion of the topsheet devoid of tufts. Tuft region lateral boundaries are symmetrically disposed on opposing sides of the longitudinal centerline. Tuft region lateral boundaries extend longitudinally along at least part of the longitudinal centerline. Tuft region lateral boundaries are spaced apart from each other by a distance gradually increasing from a minimum at a parallel transverse axis to a maximum at longitudinally opposing ends of the tuft region lateral boundaries or are spaced apart from each other by a distance gradually decreasing from a maximum at a parallel transverse axis to a minimum at longitudinally opposing ends of the tuft region lateral boundaries.Type: ApplicationFiled: March 31, 2009Publication date: February 11, 2010Inventors: John Lee Hammons, Sybille Fuchs, Luisa Valerio Gonzalez
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Publication number: 20100036348Abstract: An absorbent article including an 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: ApplicationFiled: August 5, 2009Publication date: February 11, 2010Inventors: Antonio Carlos Ribeiro De Carvalho, Marcia Helena Teixeira Fajolli, Maria Marcia R. Caldas Salles
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Publication number: 20100036346Abstract: An absorbent article having a liquid pervious topsheet having a first portion and a second portion. The first portion differs in structure from the second portion. The topsheet has a longitudinal centerline and a transverse centerline. The second portion has a first structurally modified zone, a second structurally modified zone, a third structurally modified zone, and a fourth structurally modified zone.Type: ApplicationFiled: August 8, 2008Publication date: February 11, 2010Inventors: John Lee Hammons, Sybille Fuchs, Luisa Valerio Gonzalez
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Publication number: 20100030177Abstract: [Problems] To provide an absorbent article that is favorably effective in body pressure dispersion [Means for Solving Problems] An absorbent article X1 having an absorber 3 in which plurality of absorbent cores 3A, 3B each including a fiber base material 31 and an absorbent polymer 30 are layered in such a manner that the polymer 30 swells by gelation due to liquid absorption and expands up to one surface F of the fiber base material 31 through inter-fiber gaps thereby to form a polymer layer 40 on the fiber base material surface F while the absorbent polymer expanding surfaces of adjacent absorbent cores are opposed to each other.Type: ApplicationFiled: January 29, 2008Publication date: February 4, 2010Inventors: Hiromi Sanada, Keita Mizobuchi
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Publication number: 20100030189Abstract: A multi-layered, absorbent perineal pad is disclosed that has a generally ovate cross-section. In disclosed embodiments, the pad has an absorbent outer layer, antimicrobial intermediate layer, and absorbent inner layer. At least two opposing edges of the pad are sealed to one another so that the absorbent inner layer encloses an internal cavity within the pad. The pad may be used to absorb liquids from perineal structures (such as vaginal or anal liquids) or administer agents to perineal structures. Liquids that are absorbed in the pad can be subjected to diagnostic assays.Type: ApplicationFiled: February 28, 2008Publication date: February 4, 2010Inventor: William H. Fleming
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Publication number: 20100030174Abstract: Multi-ply fibrous structures, more particularly to embossed multi-ply fibrous structures and processes for making same are provided.Type: ApplicationFiled: August 4, 2008Publication date: February 4, 2010Inventors: Patrick J. Buschur, Kevin Benson McNeil
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Publication number: 20100030178Abstract: A composite article comprises a fluid transport layer having first and second surfaces and a hydrophobic layer applied to the first surface of the fluid transport layer. When the composite article is used as a wound dressing, the first surface of the fluid transport layer provides a skin-facing surface. The hydrophobic layer comprises a plurality of discontinuities, and at least a portion of the discontinuities have a dimension sufficient to permit the passage of fluid through the hydrophobic layer and into the fluid transport layer.Type: ApplicationFiled: July 2, 2009Publication date: February 4, 2010Inventors: Robert M. MacMeccan, Le Last, Keith A. Keller, Martin E. Cowan, T. Andrew Canada
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Publication number: 20100030171Abstract: A composite article comprises a fluid transport layer, a fluid retentive layer, and, optionally, a moisture vapor permeable film. The first surface of the fluid transport layer provides a fluid contacting surface. The fluid retentive layer is positioned so that the first surface layer of the fluid retentive layer is adjacent to the second surface of the fluid transport layer. The moisture vapor permeable film is positioned so that it is adjacent to the second surface of the fluid retentive layer. The composite article is suitable for use as a wound dressing.Type: ApplicationFiled: July 2, 2009Publication date: February 4, 2010Inventors: T. Andrew Canada, Martin E. Cowan, Robert M. MacMeccan, Le Zhang
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Publication number: 20100010463Abstract: The invention includes an absorbent article 1 in which an undergarment 90 can be prevented from getting dirty with fluid that has been absorbed by an absorbent body 20, without a decrease in the amount of fluid that can be absorbed.Type: ApplicationFiled: November 16, 2007Publication date: January 14, 2010Applicant: UNI-CHARM CORPORATIONInventors: Jun Kudo, Hideyuki Kinoshita, Akira Hashino
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Publication number: 20100010461Abstract: Superabsorbent polymer particles having a transient hydrophobicity, excellent gel integrity, and free swell gel bed permeability are disclosed. A method of producing the superabsorbent polymer particles by applying a polyamine coating and a cosolvent to the particles also is disclosed.Type: ApplicationFiled: August 7, 2007Publication date: January 14, 2010Applicant: BASF SEInventors: Norbert Herfert, Martin Wendker, Richard Goodwin, Ma-Ikay Kikama Miatudila, Michael A. Mitchell, William G.J. Chiang
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Publication number: 20100004615Abstract: An absorbent product having an extent in a plane in the longitudinal direction and the lateral direction when the product is positioned in a plane position and a thickness perpendicular to the plane. The absorbent product includes a backing layer and a top layer and between them an absorption body, the absorbent product being divided up in the longitudinal direction into a rear section, a front section and positioned between them a central section, and being divided up in the lateral direction into a first lateral zone, a second lateral zone and positioned between them a central zone. The top layer includes slits in an area which fully or partially encloses that part of the absorbent product that is formed by the section of the central zone and the central section, and which constitutes the wet area of the product.Type: ApplicationFiled: June 30, 2006Publication date: January 7, 2010Inventor: Elisabeth Boissier
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Patent number: 7642398Abstract: An elasticized web has a gatherable substrate and a multi-strand elastic yarn affixed to the gatherable substrate at a plurality of fixation locations. So that the yarn can be affixed to the substrate without the use of an adhesive, the yarn is subjected to forces to create partial delamination of the yarn at the fixation locations and a portion of the gatherable substrate is caused to pass between the thus delaminated strands of the multi-strand elastic yarn. The elasticized web of the present invention is particularly suitable for use in disposable absorbent articles.Type: GrantFiled: December 26, 2002Date of Patent: January 5, 2010Assignee: SCA Hygiene Products ABInventors: Christian Järpenberg, Michael Linder, José-Maria Mansisidor, Åsa Lindström, Karin Lindmark, Ingemar Fernfors, Kenneth Strannemalm
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Publication number: 20090312732Abstract: An absorbent article may comprise an absorbent assembly comprising an absorbent core. The article may also comprise a chassis formed by a web comprising at least one continuous layer that forms a portion of a water-impermeable backsheet and a portion of laterally opposing side flaps. The chassis may further comprise a longitudinal axis, a lateral axis, a front waist region comprising a front waist edge, a back waist region comprising a back waist edge, a crotch region between the waist regions, laterally opposing side edges extending between the front waist edge and the back waist edge, an exterior surface, and an interior surface to which the absorbent assembly is attached. The attachment of the absorbent assembly may be shaped. The chassis may further comprise a continuously activated region disposed in one or both of the front and back waist regions of the article.Type: ApplicationFiled: May 4, 2009Publication date: December 17, 2009Inventors: Gary Dean LaVon, Thomas Henrich, Luke Nogales, Kevin Michael Smith, John Strube
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Publication number: 20090312728Abstract: A super-absorbent dressing assembly for use with a reduced-pressure wound treatment system includes a breathable, fluid restricted dry layer for placement against a wound, a super-absorbent layer, and a non-breathable layer, and a drape extending over the non-breathable layer. A reduced-pressure interface is available to fluidly couple the super-absorbent layer to a reduced-pressure subsystem. The super-absorbent dressing assembly preferably supplies a compressive force when placed under reduced pressure. A reduced-pressure treatment system uses a super-absorbent bolster to treat wounds, e.g., linear wounds.Type: ApplicationFiled: May 29, 2009Publication date: December 17, 2009Inventors: Larry Tab Randolph, Justin Alexander Long
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Publication number: 20090312729Abstract: 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 underwear are held.Type: ApplicationFiled: September 11, 2007Publication date: December 17, 2009Applicant: Merimont USInventor: Gabriela Roche del Ayala
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Patent number: 7632258Abstract: An absorbent feminine care article (20) having a longitudinal direction (22), a lateral direction (24), first and second longitudinally opposed end portions (72, 72a), and an intermediate portion (76) located between the end portions. The article (20) comprises an absorbent body structure (30) sandwiched between a cover (26) and a baffle (28). In a particular aspect, the absorbent structure (30) can include an intake layer (32) and a shaping layer (36). In other aspects, the intake layer (32) and shaping layer (36) can have differently configured absorbent capacities, differently configured densities, differently configured basis weights and/or differently configured sizes which are selectively arranged to provide desired combinations of liquid intake rate, absorbent retention capacity, shape maintenance, and aesthetics.Type: GrantFiled: March 19, 2003Date of Patent: December 15, 2009Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Jennifer L. Misek, Danielle G. Finger, Alice Y. Romans-Hess, Mary A. Berceau, Jamie L. Gloede, Candace D. Krautkramer, Jason M. English, Jennifer E. Pozniak, Stuart J. Burgan, Peter S. Gebhardt, Patsy A. Krautkramer, Wendy L. Hamilton, Amanda J. Carlson
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Patent number: 7632979Abstract: A body fluid absorbing article, which is improved in the spot absorptivity and in the diffusivity in an absorbent, and which is improved in the characteristics of a body fluid migration to the absorbent. The body fluid absorbing article comprises an absorbent sandwiched between a body fluid permeable surface member and a body fluid impermeable back member. Said absorbent includes an upper layer and a lower layer sequentially from the side of said body fluid permeable surface member, and said lower layer has a higher density than that of said upper layer.Type: GrantFiled: September 29, 2003Date of Patent: December 15, 2009Assignee: Daio Paper CorporationInventors: Takako Fujii, Satoko Konawa, Masanori Kondo
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Publication number: 20090306615Abstract: An absorbent product such as a panty liner, incontinence pad, sanitary towel or the like comprising a top layer consisting of a first material layer and a second material layer, the first material layer being attached directly to the second material layer. The first material layer has a first part and a second part, where the first part and/or the second part contains openings, and where the first part is folded over the second part along a fold line, the first material layer being attached directly to the second material layer adjacent to at least one line extending in the longitudinal direction in an inner joining zone. A method for the manufacture of an absorbent product of this kind.Type: ApplicationFiled: June 30, 2006Publication date: December 10, 2009Applicant: SCA Hygiene Products ABInventor: Ken Olsson
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Publication number: 20090306616Abstract: A pant type absorbent article having a core region includes an absorbent core and a chassis region surrounding the core region. The article in at least a part of the chassis region includes a coversheet in the form of an elastic laminate constituting the sole component of the chassis in at least 20% of the total surface area of the article. The elastic laminate has a tensile strength of at least 15 N/25 mm both in the longitudinal and transverse directions of the article and a tensile strength in the transverse direction of the article which is no more than 2.5 times and preferably no more than 2 times higher than the tensile strength in the longitudinal direction of the article. The force required to extend the elastic laminate 10% in the longitudinal direction of the article is no more than 5 N/25 mm.Type: ApplicationFiled: November 13, 2006Publication date: December 10, 2009Applicant: SCA Hygiene Products ABInventor: Margareta Wennerbäck
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Publication number: 20090306614Abstract: An absorbent product such as a panty liner or a sanitary towel or the like having two lateral zones and situated between them a central zone, the absorbent product having a top layer consisting of a laminate of a first layer of material containing openings and a second layer of material. The first layer of material covers at least the two lateral zones, and in that the second layer of material covers both the two lateral zones and the central zone, the top layer being folded over itself in such a way that an overlap is formed with a Z-shaped cross section, the overlapping parts being joined together via an inner joining zone. A method for the manufacture of such an absorbent product.Type: ApplicationFiled: June 30, 2006Publication date: December 10, 2009Applicant: SCA Hygiene Products ABInventor: Elisabeth Boissier
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Patent number: 7628777Abstract: An absorbent article is elongated to have longitudinally opposed front and rear edges and transversely opposed left and right edges. The absorbent article includes a stack of: a backsheet having a liquid barrier effect; a liquid absorbent layer; a hydrophilic intermediate sheet including fibers; and a hydrophilic topsheet including fibers. The absorbent article has a central region of a predetermined width, which is spaced apart from the left and right edges and formed with a plurality of liquid passage holes continuously extending from the topsheet to the intermediate sheet.Type: GrantFiled: September 9, 2002Date of Patent: December 8, 2009Assignee: Uni-Charm CorporationInventors: Hideki Kondo, Jun Kudo
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Publication number: 20090299313Abstract: A reusable sanitary garment is provided, having a three-part construction, incorporating an outer garment portion, a sling portion, and at least one pad, supported within the sling, which, in turn, is affixed to, and supported within, the outer garment. Both the outer garment portion and the sling portion are preferably fabricated, in an ecologically sustainable manner, from recycled plastics materials. The at least one pad may be fabricated as a reusable, washable article, or may be fabricated as a disposable article, preferably from recycled, and easily recyclable or biodegradable materials. The outer garment portion, the sling portion and/or the reusable pad may be fabricated to incorporate bamboo charcoal material, having enhanced antibacterial, deodorant, wicking and absorptive qualities.Type: ApplicationFiled: June 2, 2008Publication date: December 3, 2009Applicant: FAKTORIE CORPORATIONInventors: Cher Anne Caylin Knightingale, Ellis Charles Hanna Knightingale
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Publication number: 20090299316Abstract: A three-dimensional film for use as a transfer layer in an absorbent article has a continuous surface and a discontinuous surface disposed generally parallel to and spaced from said continuous surface; both the continuous surface and the discontinuous surface have large scale apertures defined by sidewalls originating on the surface and extending outwardly therefrom and sized to permit acquisition of fluids by gravity, and optionally each surface also includes small scale apertures sized to acquire fluids by capillary action.Type: ApplicationFiled: August 4, 2009Publication date: December 3, 2009Applicant: TREDEGAR FILM PRODUCTS CORPORATIONInventor: Rickey J. Seyler
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Patent number: 7626073Abstract: The present invention relates to absorbent articles which include one or more components that have been treated with a hydrophobic surface coating intended to render such components impermeable to liquids having relatively low surface tensions.Type: GrantFiled: February 10, 2005Date of Patent: December 1, 2009Assignee: The Procter & Gamble Co.Inventor: Kemal Vatansever Catalan
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Publication number: 20090292267Abstract: A disposable absorbent article, such as a disposable diaper. The disposable absorbent article has a topsheet with apertures large enough for low-viscosity fecal material to pass through to a fecal material storage element. The fecal material storage element immobilizes the fecal material in position for dewatering, so that the solid components of the fecal material are separated from the liquid components of the fecal material and the liquid components can be absorbed by an absorbent core. This arrangement provides for easier cleaning of the wearer when the soiled disposable absorbent article is removed. The fecal material storage element may extend beyond one or more edges of the absorbent core.Type: ApplicationFiled: August 5, 2009Publication date: November 26, 2009Inventor: Donald Carroll Roe
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Publication number: 20090292265Abstract: The present invention relates to a system suitable for monitoring multiple leakage events such as wetting of a diaper or alike sanitary product. The system includes two or more than two electrodes that are supported in a spaced apart relationship and a liquid permeable substrate between the electrodes that lacks or has a low capacity for holding or storing liquid. In the event of liquid leakage, an electrical bridge connecting the electrodes can be formed by the liquid, and before the product becomes saturated liquid can freely drain from the permeable substrate and disconnect the electrodes. Upon further liquid leakage, electrical connection between the electrodes can be reformed indicating multiple liquid leakage events. In the situation where the sanitary product becomes saturated and liquid is prevented from draining from the permeable substrate, the electrical connection will continue, indicating that the sanitary product requires changing.Type: ApplicationFiled: January 31, 2007Publication date: November 26, 2009Applicant: Commonwealth Scientific and Industrial Research OrganizationInventors: Richard James Neil Helmer, Micheal Anthony Mestrovic, Pamela Margaret Petersen
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Publication number: 20090287174Abstract: Absorbent core for disposable absorbent articles, particularly for the absorption of menses or blood, including an absorbent polymer and a cationic polysaccharide.Type: ApplicationFiled: May 13, 2009Publication date: November 19, 2009Inventors: Giovanni Carlucci, Alessandro Gagliardini, Emma Somma, Maurizio Tamburro
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Publication number: 20090287175Abstract: An absorbent article including a cover layer, a barrier layer and an absorbent system arranged between the cover layer and the barrier layer, the absorbent article being drapeable and possessing the absorbency attributes required of a sanitary napkin.Type: ApplicationFiled: July 27, 2009Publication date: November 19, 2009Inventors: Leonard G. Rosenfeld, Hien V. Nguyen
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Patent number: 7619132Abstract: A multilayer film includes a plastic layer and an elastomeric layer. The plastic layer can contain a co-polyester of terepthalic acid, adipic acid and butanediol, and the elastomeric layer can contain a polyurethane elastomer. The plastic layer and/or the elastomeric layer can contain filler particles, and may be present as a bilayer laminate. The plastic layer and a filled elastomeric layer can also be combined with an unfilled elastomeric layer to form a tri-layer laminate. The multilayer films can provide breathable films with improved degradability, stretchability and recoverability, and tactile feel.Type: GrantFiled: December 30, 2004Date of Patent: November 17, 2009Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Vasily A. Topolkaraev, Patrick Martin Downey
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Patent number: 7615039Abstract: A body attachable absorbent article including a cover layer, a barrier layer and an absorbent layer arranged between the cover layer and the barrier layer, the absorbent article being drapeable and possessing the absorbency attributes required of a sanitary napkin.Type: GrantFiled: June 29, 2005Date of Patent: November 10, 2009Assignee: McNeil-PPC, Inc.Inventors: Leonard G. Rosenfeld, Theresa Wysocki, Morris Yang, Marina Nikitina, John Poccia
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Patent number: 7615040Abstract: An absorbent article having a thin, flexible absorbent pad that can accommodate one or two insults with a low probability of leakage. The absorbent article can be less than about 5 millimeters thick, with the absorbent pad being less than about 3 millimeters thick. The absorbent article has a low absorbent capacity of, for example, less than three times an anticipated single insult volume, or less than twice an anticipated single insult volume. The absorbent article is particularly suitable for use as a toilet training aid.Type: GrantFiled: December 19, 2001Date of Patent: November 10, 2009Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Christopher Peter Olson, Lawrence Howell Sawyer, Shirlee Ann Weber
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Patent number: 7612249Abstract: A disposable absorbent article has a liner, an outer cover and an absorbent body therebetween for absorbing liquid body waste penetrating the liner. A flow control layer having lateral side edges is positioned between the liner and the absorbent body, with at least a portion of each lateral side edge of the flow control layer spaced laterally inward from lateral side edges of the absorbent body. The flow control layer is at least in part liquid impermeable to retard the flow of liquid body waste penetrating the liner toward the absorbent body whereby at least a portion of the liquid body waste that penetrates the liner is directed by the flow control layer to migrate laterally outward toward the lateral side edges of the flow control layer for subsequent flow around the flow control layer toward the absorbent body.Type: GrantFiled: May 28, 2004Date of Patent: November 3, 2009Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Richard L. Underhill, Michael J. Niemeyer, Marianne K. Leick
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Publication number: 20090270828Abstract: It is an object of the present invention to provide an absorbent article having an excellent utilization efficiency of an absorber. The object is attained by an absorbent article including: a leak preventer including a bottom surface part extending in a front-rear direction, and side parts raised to an upper side at both left and right sides of the bottom surface part; an absorber containing super absorbent polymer for absorbing a body fluid placed in an internal space formed by the bottom surface part and the side parts of the leak preventer in at least one layer; and a liquid guide unit placed in a front body part of the internal space, at a position where a flow of discharged urine directly collides with the liquid guide unit, for moving, when urine is discharged, the urine from the position where the urine has collided therewith to other positions.Type: ApplicationFiled: December 28, 2006Publication date: October 29, 2009Inventors: Migaku Suzuki, Katsumi Ando
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Publication number: 20090270825Abstract: A disposable absorbent article is provided having an absorbent core located in a chassis and including absorbent particulate polymer material defining at least one cavity for improved isolation of fecal matter or other body exudates. The absorbent core may be substantially cellulose free. Methods for making such an absorbent core and corresponding disposable absorbent article are also disclosed.Type: ApplicationFiled: April 1, 2009Publication date: October 29, 2009Inventors: Maja Wciorka, Carsten Heinrich Kreuzer, Udo Friedel Schoenborn
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Publication number: 20090270822Abstract: The present invention is a solution for continence problems. A supporting structure can be in the form of a modified jock strap or biker's shorts. It includes a male version (bag) and a unisex version (wicking pad). The male model can do alright with gravity alone. The unisex model uses wicking through micro channels to a trigger device in a small bag. This is made of highly porous hydrophilic material that allows flow to drain downward for disposal but not wet backwards It would be advantageous to provide a solution whereas the users would have a comfortable and efficient way to dispose of their urine without getting their garments wet without having to throw something away like absorption pad. It would also be convenient and cost effective to provide a way of using the same device without changing anything all day long.Type: ApplicationFiled: April 18, 2009Publication date: October 29, 2009Inventor: Lester William Medeiros
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Patent number: 7608748Abstract: The invention relates to a disposable absorbent sanitary product for absorbing bodily fluids, such as diapers, incontinence pads, sanitary towels or panty liners. The product comprises a top sheet, at least sections of which are permeable to liquid, a bottom sheet, at least sections of which are liquid-tight and an absorbent body that is situated between the top sheet and the bottom sheet. According to the invention, the absorbent body comprises a first storage layer (20, 26, 30) for permanently storing bodily fluids, the layer containing 5-30 wt. % hydrophilic melt-blown microfibers (22), 70-95 wt. % particulate super-absorbent material (24) and optionally a maximum 10 wt. % particulate or fibrous component.Type: GrantFiled: September 27, 2004Date of Patent: October 27, 2009Assignee: Paul Hartmann AGInventors: Matthias Zoch, Wolfgang Ostertag
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Publication number: 20090264845Abstract: An absorbent composite comprising a bound particulate absorbent polymer in which two or more nearly spherical absorbent polymer particles are bound to each other and a web-like absorbent polymer, wherein the bound particulate absorbent polymer and the web-like absorbent polymer are bound to a substrate. The composite has a large absorption and a high absorbing speed in which the absorbent polymer is kept uniformly dispersed on the support throughout before and after absorption.Type: ApplicationFiled: August 1, 2005Publication date: October 22, 2009Applicant: Mitsubishi ChemicalInventors: Shunichi Himori, Kiichi Itoh, Yasunari Sugyo, Taisuke Ishii
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Publication number: 20090259208Abstract: A nonwoven fabric comprising at least 50% by weight microfibers having a fineness of 1.0 dtex or less and a length of at least 30 mm and having been combined by hydroentangling. The fabric is apertured by said hydroentangling, and has been carded before hydroentangling. The fabric may be used as a topsheet material on an absorbent article.Type: ApplicationFiled: March 30, 2006Publication date: October 15, 2009Applicant: SCA HYGIENE PRODUCTS ABInventors: Jeanette Hellstrom, Ulrika Persson, Niclas Horle
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Patent number: 7601144Abstract: Absorbent article, such as a sanitary towel, with a stiffening area which is intended to contribute to the three-dimensional shape of the article during its use. The stiffening area is in a plane state before use of the article. The stiffening area comprises a first part area and a second part area which extends in the longitudinal direction of the article over the crotch portion and is separate from the first part area. The first stiffening part area has a width which exceeds the distance between the muscle tendons of the wearer on both sides of the crotch of the wearer in the groin of the latter.Type: GrantFiled: December 6, 2002Date of Patent: October 13, 2009Assignee: SCA Hygiene Products ABInventor: Solgun Drevik
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Patent number: 7597689Abstract: A disposable absorbent article with a backsheet and a first topsheet, is capable of being at least partially in contact with the wearer's skin when in use. The first topsheet being a fibrous three-dimensional web, having bonded regions where the fibers are bonded to another, and unbonded regions, where the fibers are unbonded to one another. The fibers extend from at least one unbonded region into at least two bonded regions, typically in the form of loops. The bonded regions form the support structure for the unbonded regions, and the surface area of the unbonded regions is at least 2 mm2. The topsheet has a thickness (caliper) of between 0.1 and 5 mm.Type: GrantFiled: November 7, 2003Date of Patent: October 6, 2009Assignee: The Procter & Gamble CompanyInventors: Anja Hoffmann, Joerg Mueller, Heike Opper, Georg Pescher, Mattias Schmidt
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Patent number: 7598427Abstract: The invention relates to an absorbent article for taking up body fluids, with a longitudinal direction, a transverse direction, a crotch portion (8) and two end portions (6, 7), and having side edges (9, 10) extending in the longitudinal direction and end edges (11, 12) extending in the transverse direction, and comprising a liquid-permeable cover sheet (2) and a liquid-tight cover sheet (3), and an absorbent body (4) arranged between the cover sheets (2, 3), and further comprising barriers which are arranged along the side edges (9, 10) of the article and which are raised up from the liquid-permeable cover sheet (2). The liquid-permeable cover sheet (2) has a central zone (30) which is arranged essentially in the crotch portion (8) of the article, and two end zones (31, 32) which are arranged at the end portions (6, 7) of the article, the liquid-permeable cover sheet (2) being more hydrophilic in the central zone (30) than in the end zones (31, 32).Type: GrantFiled: February 19, 2001Date of Patent: October 6, 2009Assignee: SCA Hygiene Products ABInventors: Christina Ragnarson, Kent Hermansson, Åsa Lindström
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Patent number: 7598428Abstract: An absorbent article having a first liquid permeable surface layer, a essentially liquid impermeable backing layer and, located between said liquid permeable surface layer and said liquid impermeable backing layer, an absorbent body having at least one layer. The absorbent article has cavities which are essentially cone-shaped and extend at least through part of the absorbent body, said cavities having a tip part and a base, the tip part being located towards or in the liquid permeable surface layer and the base being located away from the liquid permeable surface layer. A method of production of an absorbent article with cone-shaped cavities is also provided.Type: GrantFiled: October 18, 2005Date of Patent: October 6, 2009Assignee: SCA Hygiene Products ABInventors: Anette Gustavsson, Solgun Drevik
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Publication number: 20090247978Abstract: An absorbent product having an extent in a plane in the longitudinal direction and the lateral direction and a thickness perpendicular to the plane when the product is positioned in a plane position. The absorbent product includes a backing layer and a top layer, the absorbent product exhibiting in the longitudinal direction a rear section, a front section and positioned between them a central section, and exhibiting in the lateral direction a first lateral zone, a second lateral zone and positioned between them a central zone. The top layer includes slits as the only openings in an area which fully or partially encloses that part of the absorbent product that is formed by the section of the central zone and the central section, and which constitutes the wet area of the product. Lotion is placed directly under the top layer within the area containing slits.Type: ApplicationFiled: June 30, 2006Publication date: October 1, 2009Applicant: SCA HYGIENE PRODUCTS ABInventor: Elisabeth Boissier