Thermoplastic Patents (Class 604/370)
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Patent number: 7696111Abstract: The inventive cosmetic pad (2) exhibiting an improved effectiveness thereof for make-up removal contains or consists of discontinuous synthetic micro staple fibers whose length is equal to or greater than 7 mm.Type: GrantFiled: July 21, 2006Date of Patent: April 13, 2010Assignee: Paul Hartmann AGInventors: Rainer Mangold, Angela Römpp, Jana Michelmann
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Publication number: 20100069864Abstract: An absorbent article such as a diaper, panty diaper, panty liner, a sanitary napkin, an incontinence device or the like, includes at least a liquid-permeable topsheet made from at least one layer of web, foam or film material and a backsheet made from at least one layer of web, foam or film material, and optionally at least one further layer of web, foam or film material. At least one of the layers includes a coating of a hydrophobic thermoplastic polymer having an irregular surface and shows a contact angle of a sessile water drop of more than 110°. Depending on the location and the arrangement of this highly hydrophobic coating, beneficial effects in terms of the control of body liquids arise.Type: ApplicationFiled: December 11, 2006Publication date: March 18, 2010Applicant: SCA Hygiene Products ABInventors: Carolyn Berland, Rozalia Bitis
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Patent number: 7674949Abstract: absorbent article comprising a liquid transfer layer (5) positioned between a liquid pervious bodyside liner (6) and an absorbent core (2). The liner (6) comprises a plurality of perforations (7). The liner and the transfer layer are bonded together in a plurality of bonding sites (11) covering an area of between 0.5% and 11% of the area of the liner (6) that is circumscribed by the bonding sites and wherein each bonding site has an area of no more than 13 mm2. The combined perforated liner (6) and transfer layer (5) provides a quick inlet of liquid and a low rewet against the wearer. The liner (6) has a three-dimensional structure of alternating raised and depressed regions and the perforations (7) are present in the bottoms of the depressions (8) of said liner as seen from the body facing side of the liner.Type: GrantFiled: March 3, 2006Date of Patent: March 9, 2010Assignee: SCA Hygiene Products ABInventors: Johan Wahlstrom, Bror-Inge Helmfridsson, Ken Olsson, Patrik Andersson, Anne Farbrot
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Publication number: 20100057030Abstract: An absorbent article includes a liquid-pervious sheet, an outer covering sheet, and an absorbent structure sandwiched between the liquid-pervious sheet and the outer covering sheet. The absorbent structure includes a liquid-absorbent mixture composed of super-absorbent polymer particles and fluff pulp and nonwoven fabric sheet formed from long fibers of thermoplastic resin. The nonwoven fabric sheet is put in contact, along at least one surface thereof, with the liquid-absorbent mixture and has cross points at which the long fiber sealed together, and a nap height defined by a difference between a thickness measured before a napping test and a thickness measured after the napping test is at least 0.5 mm.Type: ApplicationFiled: November 8, 2007Publication date: March 4, 2010Applicant: UNI-CHARM CORPORATIONInventors: Qiye Yang, Koichiro Mitsui
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Patent number: 7662460Abstract: A flexible absorbent sheet material containing an acidic water-absorbing resin, a basic water-absorbing resin, and a plasticizer, and its method of manufacture, are disclosed. The sheets contain about 60% to 100% by weight of the acidic and basic water-absorbent resin and plasticizer. The absorbent sheets have unexpected flexibility and structural integrity, while exhibiting exceptional water absorption and retention properties.Type: GrantFiled: April 29, 2003Date of Patent: February 16, 2010Inventors: Norbert Herfert, Michael A. Mitchell, Friedrich Engelhardt
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Publication number: 20100036342Abstract: Absorbent core for disposable absorbent articles, particularly for the absorption of menses or blood, comprising absorbent gelling material and an inert material.Type: ApplicationFiled: August 4, 2009Publication date: February 11, 2010Inventors: Giovanni Carlucci, Maurizio Tamburro, Evelina Toro
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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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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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Publication number: 20090247976Abstract: The present invention relates to a flexible retention web designed to be introduced into a vaginal cavity, said web being provided with means of removal and being made of a non-expandable or minimally expandable atraumatic material, the dimensions of which are designed in such a way as to be able to retain and/or slow down bodily discharges of small quantity.Type: ApplicationFiled: March 11, 2009Publication date: October 1, 2009Inventor: Bernard Chaffringeon
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Publication number: 20090209932Abstract: Absorbent core for disposable absorbent articles, particularly for the absorption of menses or blood.Type: ApplicationFiled: December 2, 2008Publication date: August 20, 2009Inventors: Maurizio Tamburro, Evelina Toro, Nicola D'Alesio, Giovanni Carlucci
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Publication number: 20090192480Abstract: Absorbent articles having a liquid permeable topsheet, a liquid impermeable backsheet, and an absorbent core disposed between said topsheet and said backsheet are disclosed. The absorbent articles include a thermoplastic elastomer joined to or disposed in a stretch zone on at least one component or region of the absorbent article to impart an elastic resistance that provides sizing or shaping capabilities to the article. The absorbent article can be in the form of diapers, pull-on diapers, training pants, sanitary napkins, wipes, bibs, incontinence briefs or inserts.Type: ApplicationFiled: December 10, 2007Publication date: July 30, 2009Inventors: Donald Carroll Roe, Fred Naval Desai
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Patent number: 7521588Abstract: A polymeric web exhibiting a soft and silky tactile impression on at least one side thereof is disclosed. The silky feeling side of the web exhibits a pattern of discrete hair-like fibrils, each of the hair-like fibrils being a protruded extension of the web surface and having a side wall defining an open proximal portion and a closed distal portion. The hair-like fibrils exhibit a maximum lateral cross-sectional diameter of between 2 and 5 mils, and an aspect ratio from 1 to 3. Methods and apparatus for making the polymeric web utilize a three-dimensional forming structure having a plurality of protrusions being generally columnar forms having an average aspect ratio of at least about 1.Type: GrantFiled: May 12, 2005Date of Patent: April 21, 2009Assignee: The Procter & Gamble CompanyInventors: Keith Joseph Stone, Brian Francis Gray, Norman Scott Broyles, Dimitris Ioannis Collias, Yann-Per Lee
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Publication number: 20090082744Abstract: An absorbent product, such as an incontinence pad, a sanitary towel, a panty liner or the like, having a liquid-permeable top layer, a preferably liquid-impermeable bottom layer and an absorbent core arranged between the top layer and the bottom layer. The top layer is joined together with a subjacent admission material by means of ultrasonic processing, in conjunction with which the laminate that is defined by the top layer and the admission material when these are joined together includes a reinforcement executed with ultrasonic processing essentially along its peripheral edge. Also, a method for manufacturing the aforementioned products.Type: ApplicationFiled: December 16, 2005Publication date: March 26, 2009Applicant: SCA Hygiene Products ABInventors: Carin Hakansson, Johan Wahlstrom
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Publication number: 20090062759Abstract: A disposable wearing article has its outer surface formed from a nonwoven fabric of thermoplastic synthetic fibers. A tape strip constituting each of the tape fasteners is folded in Z- or inverted Z-shape and attached in such folded state to the outer surface of the wearing article by means of first adhesive. As for a spot at which the tape strip is attached to the outer surface of the wearing article, the nonwoven fabric at least partially presents a film-like outer surface.Type: ApplicationFiled: October 17, 2008Publication date: March 5, 2009Applicant: UNI-CHARM CORPORATIONInventors: Takaaki Shimada, Junko Sato
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Publication number: 20090043273Abstract: Absorbent core for disposable absorbent articles, particularly for the absorption of menses or blood.Type: ApplicationFiled: July 28, 2008Publication date: February 12, 2009Inventors: Giovanni Carlucci, Maurizio Tamburro, Alessandro Gagliardini, Evelina Toro, Pancrazio Veronese
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Patent number: 7473818Abstract: A pant-like, prefastened, disposable absorbent article having side seams which include a front ear passively bonded to a back ear, wherein the front ear is releasable from the back ear desirably without tearing or damaging the back ear. The tearable front ear has a basis weight less than a basis weight of the back ear.Type: GrantFiled: December 7, 2001Date of Patent: January 6, 2009Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Paul J. Datta, Kristi Jo Bryant, Timothy J. Blenke, Stephen C. Baumgartner, Julie A. Moser, Barbara A. Gossen, Catherine Marguerite Hancock-Cook, Mark G. Everson, Peter S. Lortscher
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Publication number: 20080312624Abstract: A tri-folded disposable absorbent article comprising a substantially cellulose free absorbent core located in a chassis between a topsheet and a backsheet and comprising absorbent particulate polymer material. An array of absorbent article packages comprising disposable absorbent articles comprising a substantially cellulose free absorbent core is also disclosed.Type: ApplicationFiled: June 18, 2008Publication date: December 18, 2008Inventors: Harald Hermann Hundorf, Holger Beruda, Horst Blessing, Peter Dziezok, Axel Krause, Mattias Schmidt, Lutz Stelzig, Martin Werner Frank
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Publication number: 20080312622Abstract: A disposable absorbent article comprising a chassis including a topsheet and a backsheet, a substantially cellulose free absorbent core located between the topsheet and the backsheet and having a wearer facing side oriented toward a wearer when the article is being worn and an opposed garment facing side, and a liquid acquisition system disposed between the liquid permeable topsheet and the wearer facing side of the absorbent core comprising chemically cross-linked cellulosic fibers.Type: ApplicationFiled: June 18, 2008Publication date: December 18, 2008Inventors: Harald Hermann Hundorf, Holger Beruda, Horst Blessing, Peter Dziezok, Axel Krause, Mattias Schmidt, Lutz Stelzig
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Patent number: 7465373Abstract: An unitary stratified composite composed of a first stratum and a second stratum integrally connected by a transition zone is disclosed. The first stratum serves as a liquid acquisition stratum that rapidly acquires and then transfers liquid to the second stratum. The second stratum serves to withdraw liquid from the first stratum and further severs as a temporary storage stratum. Methods for forming the unitary stratified composite are also disclosed.Type: GrantFiled: May 4, 2006Date of Patent: December 16, 2008Assignee: National Institute for Strategic Technology Acquisition and CommercializationInventors: Peter A. Graef, Colin Elston, Daniel T. Bunker, Fred B. Howard, Jeffrey D. Mathews, Shahrokh A. Naieni, Charles E. Miller
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Publication number: 20080275412Abstract: An article, including disposable articles and durable articles, includes one or more shaped thermoplastic members, which can be at least partially impregnated into one or more fibrous substrates forming a composite material of the article having regions of breathability, elasticity, and/or stiffening to provide desired functions of the article. The shaped thermoplastic members have a profiled thickness and/or basis weight providing variation in material properties. A percent variation of the profiled thickness of the thermoplastic member can vary from about 5% to about 95%. A process for manufacturing the composite material of the present invention is also disclosed.Type: ApplicationFiled: July 11, 2008Publication date: November 6, 2008Inventors: John C. Molander, David A. Wallack, Joseph H. Lam, Fred N. Desai, Urmish P. Dalal, Mark J. Kline
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Publication number: 20080262457Abstract: Absorbent articles having a liquid permeable topsheet, a liquid impermeable backsheet, and an absorbent core disposed between said topsheet and said backsheet are disclosed. The absorbent articles include a thermoplastic elastomer joined to or disposed in a stretch zone on at least one component or region of the absorbent article to impart an elastic resistance that provides sizing or shaping capabilities to the article. The absorbent article can be in the form of diapers, pull-on diapers, training pants, sanitary napkins, wipes, bibs, incontinence briefs or inserts.Type: ApplicationFiled: December 10, 2007Publication date: October 23, 2008Inventors: Donald Carroll Roe, Fred Naval Desai
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Publication number: 20080200890Abstract: Disposable absorbent articles comprising an absorbent material and a degradable thermoplastic polymer composition comprising an aliphatic polyester and an antimicrobial composition. The antimicrobial composition includes an antimicrobial component and an enhancer component. The aliphatic polyester and antimicrobial composition are formed into webs by melt extrusion, such as nonwovens and films, that are incorporated into disposable absorbent articles, such as disposable infant diapers, adult incontinence articles, feminine hygiene articles such as sanitary napkins, panty liners and tampons, personal care wipes and household wipes to provide odor control, control of microbial growth, and control of microbial toxin production.Type: ApplicationFiled: April 7, 2008Publication date: August 21, 2008Inventors: Leigh E. Wood, Alexis S. Statham, Francis E. Porbeni, Robert J. Maki, Jeremy M. Yarwood, Matthew J. Schmid, Ronald W. Ausen, Jay M. Jennen, Kelly S. Anderson, Matthew T. Scholz, Robert W. Peterson, Erin A. Meulners
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Patent number: 7402723Abstract: A polymeric web exhibiting a soft and silky tactile impression on at least one side thereof is disclosed. The silky feeling side of the web exhibits a pattern of discrete hair-like fibrils, each of the hair-like fibrils being a protruded extension of the web surface and having a side wall defining an open proximal portion and a closed distal portion. The hair-like fibrils exhibit a maximum lateral cross-sectional diameter of between 2 and 5 mils, and an aspect ratio from 1 to 3. Methods and apparatus for making the polymeric web utilize a three-dimensional forming structure having a plurality of protrusions being generally columnar forms having an average aspect ratio of at least about 1.Type: GrantFiled: December 20, 2002Date of Patent: July 22, 2008Assignee: The Procter & Gamble CompanyInventors: Keith Joseph Stone, Brian Francis Gray, Norman Scott Broyles, Dimitris Ioannis Collias, Yann-Per Lee
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Patent number: 7396585Abstract: This invention is directed to an absorbent structure comprising a solid, typically particulate, water-swellable material that comprises coated water-swellable, preferably hydrogel-forming polymers, which are coated with a coating agent, which is such that it does not rupture when the polymers swell in a liquid, e.g., water or saline water. Hereto, the coating agent is extensible in wet state and comprises thereto a wet-extensible material that has a wet-elongation of at least 400% or even at least 500%, and preferably a tensile stress at break in the wet state of at least 1 MPa. Typically, the coating agent comprises thereto an elastomeric polymeric material.Type: GrantFiled: August 5, 2004Date of Patent: July 8, 2008Assignee: The Procter & Gamble CompanyInventors: Mattias Schmidt, Axel Meyer, Renae Dianna Fossum, Stephen Allen Goldman, Edward Joseph Urankar, Bruno Johannes Ehrnsperger
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Publication number: 20080161765Abstract: A disposable absorbent article has a stretchable multilayer chassis having a longitudinal axis, a lateral axis, an inner surface, and an outer surface. The chassis is stretchable at least laterally. An absorbent body has an inner surface, an outer surface facing the inner surface of the chassis, and terminal edges. The absorbent body is affixed along at least a portion of its outer surface to the inner surface of the chassis whereby the inner surface of the absorbent body lies against a wearer of the article during use. The inner surface of the absorbent body is uncovered at the terminal edges thereof to permit contact of the absorbent body with the wearer of the article at the terminal edges of the absorbent body. The absorbent body is sized relative to the chassis such that a portion of the chassis is uncovered by the absorbent body to permit contact of the inner surface of the chassis with the wearer of the article. The chassis is stretchable about the wearer independent of the absorbent body.Type: ApplicationFiled: March 13, 2008Publication date: July 3, 2008Applicant: Kimberly-Clark Worldwide, Inc.Inventors: Michael T. Morman, Thomas H. Roessler
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Publication number: 20080147034Abstract: A film that is biodegradable and water-sensitive (e.g., water-soluble, water-dispersible, etc.) in that it loses its integrity over time in the presence of water is provided. More specifically, the film contains a combination of a biodegradable polyester and a water-sensitive thermoplastic starch. The desired water-sensitive attributes of film may be achieved in the present invention by selectively controlling a variety of aspects of the film construction, such as the nature of the components employed, the relative amount of each component, the manner in which the film is formed, and so forth.Type: ApplicationFiled: December 15, 2006Publication date: June 19, 2008Inventors: James H. Wang, Bo Shi
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Publication number: 20080132864Abstract: Disposable absorbent article comprising an interior design signal indicating absorbency and an absorbent core including first and second absorbent layers, the first absorbent layer including a first substrate and the second absorbent layer including a second substrate, the first and second absorbent layers further including absorbent particulate polymer material deposited on the first and second substrates and thermoplastic material covering the absorbent particulate polymer material on the respective first and second substrates, the first and second absorbent layers combined together such that at least a portion of the thermoplastic material of the first absorbent layer contacts at least a portion of the thermoplastic material of the second absorbent layer, the absorbent particulate polymer material is disposed between the first and second substrates in an absorbent particulate polymer material area, and the absorbent particulate polymer material is substantially continuously distributed across the absorbentType: ApplicationFiled: November 20, 2007Publication date: June 5, 2008Inventors: Kathleen Marie Lawson, Mark John Ciesko, Christofer Fuchs, Alizha Victoria Rice, Harald Hermann Hundorf, Horst Blessing, Peter Dziezok, Mattias Schmidt, Holger Beruda, Bruno Johannes Ehrnsperger
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Publication number: 20080125736Abstract: Absorbent articles such as disposable diapers, incontinent briefs, diaper holders, training pants and the like, having elastomeric ear panels and a fastening system that provides the user with different options as to how the absorbent article may be fitted to and removed from the wearer. The absorbent articles allow the wearer to choose between conventional and pull-on diaper configurations, or combinations thereof, and properly and comfortably fit a large range of wearer sizes. Further, the absorbent articles can be pulled on and/or off as a pant. This feature is provided by the ear panels which maintain sufficient tension to hold the diaper on the wearer throughout the period of use without harming the wearer's skin, while providing enough stretch to allow the diaper to be pulled up or down over the wearer's hips. The fastening system is refastenable for convenience yet strong enough to maintain the diaper in a fastened configuration without becoming detached if the diaper is pulled on or off the wearer.Type: ApplicationFiled: January 30, 2008Publication date: May 29, 2008Inventors: Mark James Kline, Miguel Alvaro Robles, Thomas Henrich
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Patent number: 7378566Abstract: An absorbent core is provided including a substrate that performs at least one fluid handling function. At least a portion of at least one region of the substrate has been modified by aperturing, calendering, coating, creping, heating, printing, stretching, or a combination thereof to impart at least one different fluid handling function. The substrate is folded to provide a plurality of panels wherein at least a portion of one panel corresponds to at least a portion of the modified region of the substrate. An absorbent article including the absorbent core and a process for making the absorbent core are also disclosed.Type: GrantFiled: December 13, 2002Date of Patent: May 27, 2008Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Dave Allen Soerens, Cathleen Mae Uttecht, Hoa La Wilhelm
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Publication number: 20080091159Abstract: Absorbent articles for the absorption of proteinaceous or serous body fluids, particularly menses. The absorbent article has a better handling towards such fluids, both in terms of retention capacity and absorption rate, by comprising a selected polyacrylate based material.Type: ApplicationFiled: October 20, 2006Publication date: April 17, 2008Inventors: Giovanni Carlucci, Alessandro Gagliardini
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Patent number: 7329793Abstract: A roller device has a handle with two arms extending from one end of a handgrip and a roller which is cylindrical having a surface composed of a spongy material, and two ends having an opening through the center of each end. The arms have ends which rotatably engage one opposing opening of the roller. The roller may have an inner part and an outer part with a spongy material on the surface of the outer part, or the entire outer part may be a spongy material. A method of using the roller device involves placing the roller on a leg above a top incision, rolling the device down the leg while applying moderate pressure, forcing fluids down and out a lower incision, wiping off the fluid, observing for additional fluid build up, and repeating the procedure until no further build up is observed.Type: GrantFiled: March 5, 2004Date of Patent: February 12, 2008Inventor: Charles E. Lohr
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Publication number: 20080015531Abstract: An absorbent article having a distribution member comprising non-biopersistent inorganic vitreous microfibers. The microfibers have an average effective diameter between about 0.1 micron and about 6 microns and are arranged in a fibrous assembly having a basis weight between about 40 g/m2 and about 350 g/m2 and a density between about 0.04 g/m3 and about 0,25 g/m3. In preferred embodiments, the fibrous assembly can vertically wick a 0.9% saline solution to a height of 5 cm in less than about 5 minutes.Type: ApplicationFiled: July 12, 2006Publication date: January 17, 2008Inventors: Bryn Hird, Robert Earl Magness
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Patent number: 7317135Abstract: Disclosed is an absorbent structure comprising an acidic or basic water-swellable, water-insoluble polymer, a basic or acidic second material, and, optionally, a buffering agent, wherein the absorbent structure exhibits desirable absorbent properties. Specifically, the present invention relates to an absorbent structure having the ability to absorb a large quantity of liquid while maintaining a substantially desired and balanced pH profile on or along the upper surface of the absorbent structure. The absorbent structure is useful in disposable absorbent products, such as those disposable absorbent products that are used to absorb body liquid.Type: GrantFiled: December 22, 2005Date of Patent: January 8, 2008Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Palani Raj Ramaswami Wallajapet, Alice Y. Romans-Hess, Edwin T. Ta, Jian Qin
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Patent number: 7300425Abstract: A new and unique, multi-purpose sanitary napkin is designed and intended for wearers with an excessive flow of fluids. The sanitary napkin has a super absorbent core which gives maximum protection, against the wearer skin and garments, from extremely heavy menstrual cycles, post pregnancy and urinary incontinence.Type: GrantFiled: December 5, 2006Date of Patent: November 27, 2007Inventor: Shanell Marie Mants
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Publication number: 20070219521Abstract: An absorbent article is disclosed having a topsheet, a backsheet joined with the topsheet, an absorbent core disposed between the topsheet and the backsheet, and a synthetic superabsorbent polymer derived from a first renewable resource via at least one intermediate compound, wherein said superabsorbent polymer exhibits a defined Saline Flow Conductivity value and Absorption Against Pressure value. Alternately, an absorbent article is disclosed having a synthetic polyolefin derived from a first renewable resource via at least one intermediate compound. The synthetic polyolefin exhibits defined performance characteristics making the polyolefin particularly useful in certain components of the absorbent article. Methods for making the aforementioned absorbent articles are also disclosed.Type: ApplicationFiled: March 15, 2007Publication date: September 20, 2007Inventors: Bryn Hird, Eric Ted Addington
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Patent number: 7238403Abstract: There is provided a composite comprising a bonded mixture of a binder and active ingredients such as spill control agents, odor control agents, anti-microbial agents, and biologically active agents. The mixture is applied to and fused and/or coalesced with a first substrate, preferably an nonwoven material that is fluid permeable or impermeable. The composite preferably contains a second substrate, preferably a nonwoven material, placed on top of the mixture that is fused to and/or coalesced with the mixture. Preferably, the composite adsorbs and/or absorbs moisture, liquids, and/or odors, and can provide an anti-microbial effect. The composite can be used to line an outer or inner functional surface such as a shelf, a drawer, a cabinet, a refrigerator, trash receptacle, shipping container, or as a backing for other surfaces such as carpeting, fabric, upholstery, drapes, and the like.Type: GrantFiled: December 18, 2002Date of Patent: July 3, 2007Assignee: KX Industries, LPInventors: Evan E. Koslow, Lawrence S. Walters, Jr.
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Publication number: 20070149938Abstract: A non-elastic thermoplastic film having a noise abatement region and a fastening component. The noise abatement region has a plurality of apertures, wherein each of the plurality of apertures has an area of between about 4 mm2 to about 75 mm2. The fastening component is disposed within the noise abatement region such that the fastening component is surrounded by the noise abatement elements.Type: ApplicationFiled: December 14, 2006Publication date: June 28, 2007Applicant: The Procter & Gamble CompanyInventors: Oscar Antonio Ruiz, John Carroll Molander
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Patent number: 7195810Abstract: An absorbent sheet made from an air-laid fiber web includes a functional emboss pattern of a continuous (wave-like) shape extending in the machine direction of the sheet. The emboss pattern defines a plurality of compressed regions operative to preferentially convey sorbed liquid away from the point of insult to prevent product failure. The sheet is particularly useful as absorbent core material within a multi-layer absorbent pad. In a further aspect of the invention, there is provided a method of making absorbent sheet utilizing an emboss roll provided with radially projecting circumferential sinuate bosses.Type: GrantFiled: April 21, 2000Date of Patent: March 27, 2007Assignee: Fort James CorporationInventors: Bradley G. Schmidt, Jennifer N. Wergin, Barbara V. Buman, Michael P. Bouchette
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Patent number: 7083843Abstract: Provided is a top sheet for absorbent articles including a number of perforations for covering a liquid-receiving surface of an absorbent article. The top sheet is formed of a thermoplastic resin containing a particulate material. The top sheet is provided with fine convex portions of the particulate material on the surface thereof and a plurality of protrusions extending from the surface thereof, and the height of each protrusion from the surface is larger than that of each fine convex portion therefrom.Type: GrantFiled: January 26, 2001Date of Patent: August 1, 2006Assignee: Uni-Charm CorporationInventors: Satoshi Mizutani, Yuuki Noda, Tatsuya Tamura
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Patent number: 7048976Abstract: The invention relates to a cooling article comprising a polymer absorbent enclosed within a bag delimited by a collapsible envelope having non-watertight walls, wherein said polymer absorbent is under the form of particles each of which comprises a core of less cross-linked polymer sequences more active in retaining absorbed water and a shell of more cross-linked polymer sequences apt to retard diffusion of water from a particle to another during desorption of absorbed water.Type: GrantFiled: December 27, 2001Date of Patent: May 23, 2006Assignee: Cryomed FranceInventors: Patrick Caceres, Frank Caceres
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Patent number: 7005558Abstract: A liquid permeable covering sheet of an absorbent article such as a diaper, an incontinence protector, or a sanitary napkin which comprises an apertured textile material. The covering sheet has a plurality of holes, each of which is surrounded by an essentially liquid-type edge. The invention further comprises an absorbent article with a covering sheet according to the invention. A method of making the covering sheet by causing heated needles to penetrate a textile material layer comprising at one thermoplastic component is also covered by the invention.Type: GrantFiled: April 25, 1997Date of Patent: February 28, 2006Assignee: SCA Hygiene Products ABInventors: Anette Johansson, Agneta Thorén
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Patent number: 6989005Abstract: A disposable absorbent article suitable for absorbing and retaining aqueous body fluids includes a backsheet that is substantially liquid impervious except at a discontinuity therein and an absorbent core between the backsheet and a topsheet. The absorbent core includes a non-removable component and a removable and replaceable component in fluid communication with the non-removable component. Access for the removal and replacement of the removable component is provided by the discontinuity in the backsheet. The replaceable absorbent core component may be removed and a like component may be substituted in place of the removed component without removal of the absorbent article from the wearer.Type: GrantFiled: March 27, 1997Date of Patent: January 24, 2006Assignee: The Procter & Gamble CompanyInventors: Gary Dean LaVon, Gerald Alfred Young, Theodora Beck
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Patent number: 6916969Abstract: The invention relates to a material laminate for use as a covering sheet on absorbent articles such as sanitary napkins, incontinence protectors, diapers, pant diapers, or the like. The material laminate comprises a first, fluid pervious fibrous material layer and a second fluid pervious porous material layer, wherein at least one of the two material layers comprises thermoplastic material and wherein the two material layers are mutually connected by means of the covering material laminate exhibiting bond sites within which the thermoplastic material has been caused to at least partially soften or melt and thereby bond the two material layers together.Type: GrantFiled: July 3, 2000Date of Patent: July 12, 2005Assignee: SCA Hygiene Products ABInventors: Bror-Inge Helmfridsson, Urban Nilsson, Stefan Lindgren
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Patent number: 6909028Abstract: A thermally stable microporous breathable film is provided comprising at least 35% filler, by weight of the filled-film, and a thermoplastic polymer blend of a first polyethylene polymer and a second polyethylene polymer. The first polyethylene polymer comprises 30%-70% by weight of the polymer blend and can have a density between about 0.86 g/cm3 and 0.89 g/cm3 and the second polyethylene polymer can have a density between about 0.90 g/cm3 and 0.92 g/cm3. The filled-film can be uniaxially or biaxially oriented to form a microporous film and/or film laminate having good body conformance and which retains a high WVTR at 37° C. and above.Type: GrantFiled: July 24, 1998Date of Patent: June 21, 2005Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Susan Elaine Shawver, Paul Windsor Estey, William Bela Haffner, Cindy Janja Blackstock, Glynis Allicia Walton, Duane Girard Uitenbroek
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Patent number: 6881876Abstract: The invention relates to a material structure for use in absorbent articles, and an absorbent article comprising such a material structure. The material structure (1) comprises a liquid-pervious cover layer (2), a liquid-impervious cover layer (3), and an absorbent structure (4, 4?) enclosed between the cover layers (2, 3). Thereby, the absorbent structure (4, 4?) comprises polylactide fibres or filaments, the properties of which contributing to a rapid acquisition of liquid through the liquid-pervious cover layer (2) for absorption into the absorbent structure (4, 4?) also when the material structure (1) is subjected to repeated wettings. The invention can advantageously be applied within the field of absorbent hygiene articles, such as different types of diapers and incontinence guards, sanitary napkins, pantyliners, and the like.Type: GrantFiled: May 21, 2001Date of Patent: April 19, 2005Assignee: SCA Hygiene Products ABInventors: Hannele Nurmi, Anders Silfverstrand, Anna-Karin Jönbrink, Eva Simmons, Elisabeth Lakso, Gunilla Himmelman
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Patent number: 6844481Abstract: A sheet which gives an absorbent article improved recovery from distortion is disclosed. The sheet has a recovery force of 0.7 cN or more in the cross direction, a compressive strength of 100 cN or less, and a basis weight of 20 g/m2 or more.Type: GrantFiled: February 28, 2001Date of Patent: January 18, 2005Assignee: Kao CorporationInventors: Shoichi Taneichi, Yasuhiro Komori, Manabu Kaneda, Shinsuke Nagahara, Tetsuyuki Kigata, Yayoi Fukuhara, Masahito Tanaka, Minoru Nakanishi
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Patent number: 6802932Abstract: A method for manufacturing an absorbent article including: a topsheet formed from a nonwoven fabric; a backsheet; and a cushion layer disposed between the topsheet and the backsheet is achieved by applying heat to a cushion layer unwound from a material roll to restore the bulkiness of the tissue layer, blowing air into the cushion layer for rapid cooling after the application of heat to maintain the restored bulkiness of the cushion layer, and laminating the topsheet, cushion layer, and the backsheet onto each other.Type: GrantFiled: June 4, 2002Date of Patent: October 12, 2004Assignee: Uni-Charm CorporationInventors: Jun Kudo, Mitsuhiro Wada
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Patent number: 6781027Abstract: A nonwoven surge material for personal care products, which is a nonwoven fabric made of a homogeneous blend of large and small denier fibers. The small or first denier fiber preferably has an average denier less than 2, is at least 3 denier less than the second or larger fiber and the large or second denier fiber has an average denier between 4 and 15. The nonwoven fabric is a mixture of these fibers in amounts of from 25 to 75 weight percent of each type of fiber. The fabric may have a basis weight between 30 and 200 gsm. The first denier fiber may be a bicomponent fiber which may be a sheath/core polyethylene/polypropylene bicomponent fiber. The second denier fiber may be made from a polyester. It is also possible that the fibers have a hydrophilic treatment added to their surface to increase their hydrophilicity.Type: GrantFiled: December 14, 2001Date of Patent: August 24, 2004Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Christopher Dale Fenwick, Roland Columbus Smith, Jr.
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Patent number: 6761955Abstract: Disclosed is an absorbent article including a topsheet, a backsheet and an absorbent core positioned between the topsheet and the backsheet, and having leakage-preventing side walls on a liquid-receiving side of the article. The leakage-preventing side walls extend in a longitudinal direction of the article and lie opposite one another in a width direction of the article. At least a liquid-receiving face of each leakage-preventing side wall is made of a fibrous sheet that contains hydrophobic fibers thermally bonded to one another and hydrophilic fibers shorter than the hydrophobic fibers. At least a part of the hydrophilic fibers form aggregates which are dispersed in the fibrous sheet and are bonded to the hydrophobic fibers.Type: GrantFiled: November 14, 2001Date of Patent: July 13, 2004Assignee: Uni-Charm CorporationInventors: Satoshi Mizutani, Makoto Suekane, Etsuko Tagami, Kazuya Nishitani
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Publication number: 20040133177Abstract: The present invention is directed to absorbent articles comprised of one or more components exhibiting an improved barrier to basis weight performance. The improved barrier performance of the aforementioned absorbent article components is a result of supplying a strong and durable nonwoven substrate layer followed by deposition of a nano-denier, essentially continuously filament barrier layer onto the nonwoven substrate layer thereby providing absorbent articles that exhibit enhanced barrier performance in comparison to conventional absorbent articles.Type: ApplicationFiled: September 18, 2003Publication date: July 8, 2004Inventors: Jerry Zucker, Nick Mark Carter