Synthetic Resin Patents (Class 604/372)
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Publication number: 20130018348Abstract: An absorbent core structure for disposable absorbent articles, having improved fluid handling properties.Type: ApplicationFiled: July 15, 2011Publication date: January 17, 2013Inventors: Giovanni Carlucci, Andrea Peri, Maurizio Tamburro, Luigi Di Girolamo
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Publication number: 20130018346Abstract: A sanitary disposable urine device is provided that includes an inner ring and outer ring each having a top surface and opposing bottom surface. The outer ring is substantially concentric with the inner ring and may be offset. At least one of the top surfaces of the inner and outer rings conforms to a body contour of a user's perineum. The device includes a hand holder coupled to the bottom surface of the inner ring, the hand holder having an opening configured to match to the inner ring. The device includes a fluid containing bag having an open end attached to the hand holder such that fluid flows through the inner ring and the opening of the hand holder into the fluid containing bag during usage. The device includes an inner bag inside the fluid containing bag having an absorbent material and an outer sealable bag to secure the device after use.Type: ApplicationFiled: June 13, 2012Publication date: January 17, 2013Applicant: MERCY MEDICAL RESEARCH INSTITUTEInventors: Roger Huckfeldt, Cindy Lowe, Keela Davis, Martin Reuter, John Price, Debbie Sue Mikkelson
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Publication number: 20130018349Abstract: A water-absorbent sheet structure comprising a structure in which an absorbent layer containing a water-absorbent resin is sandwiched with a hydrophilic nonwoven fabric from an upper side and a lower side of the absorbent layer, characterized in that at least one side of a topside and an underside of the water-absorbent sheet structure is subjected to embossing, and that the water-absorbent sheet structure has the following properties: when a saline solution is allowed to be absorbed in an amount of 4 L per 1 m2 of the water-absorbent sheet structure (4 L/m2), the water-absorbent sheet structure satisfies both of the following relationships of (A) and (B): (A) an expansion thickness ratio, i.e. T2/T1, of 2 or more, and (B) an expansion embossing depth, i.e. (T2?t2)/T2, of 0.Type: ApplicationFiled: March 10, 2011Publication date: January 17, 2013Applicant: SUMITOMO SEIKA CHEMICALS CO., LTD.Inventors: Junichi Takatori, Hideki Matsushita, Jun Sakata, Haruka Inaba
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Publication number: 20130018345Abstract: An absorbent article for attachment to a wearers skin in the vulva region of the wearers torso includes a shell having a first side and a second side, the first side having a first area and a second area, wherein the first area surrounds a majority of the second area, and wherein the shell comprises a gel, a film, a sheet of a polymeric material, a foam, or a laminate including one or more of these materials. The article also includes an absorbent structure attached to the first side and located entirely within the second area of the shell, the absorbent structure including an absorbent material, wherein the first area of the shell has adhesive properties, and wherein the adhesive properties are adapted to attach the first area directly to the wearer's vulva region.Type: ApplicationFiled: September 17, 2012Publication date: January 17, 2013Applicant: Kimberly-Clark Worldwide, Inc.Inventor: Kimberly-Clark Worldwide, Inc.
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Publication number: 20130018344Abstract: A disposable personal care article includes a shell having a unitary structure for disposition adjacent a wearer's vulva region; wherein the shell has a first side and a second side, the first side having a first area and a second area, the first area including body adhesive properties; wherein at least a portion of the first area comprises a body attachment means for adhering the shell directly to the skin and/or hair of the wearer; and wherein the shell has an anterior portion and a posterior portion where the posterior portion exhibits a higher % Extension relative to the anterior portion when a stretching force of 454 grams is applied, as measured by the % Strain Differential Test; and an absorbent structure present in the second area of the shell, wherein the first area is longitudinally separated from the second area.Type: ApplicationFiled: September 17, 2012Publication date: January 17, 2013Applicant: Kimberly-Clark Worldwide, Inc.Inventor: Kimberly-Clark Worldwide, Inc.
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Publication number: 20130012897Abstract: There is provided a dressing (10) which comprises a cover sheet (20) and an absorbent sheet (30). In one embodiment the cover sheet (20) and absorbent sheet (30) have edges which are coterminous along part of their extent and the cover sheet (20) comprises a portion projecting beyond the edge of the absorbent sheet (30) such that, in use, said portion can overly part of an adjacent dressing. Also provided are methods of using dressings and a kit of parts for forming a patchwork dressing.Type: ApplicationFiled: January 28, 2011Publication date: January 10, 2013Applicant: SUMED INTERNATIONAL (UK) LIMITEDInventor: Graham John Collyer
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Publication number: 20120330259Abstract: 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: ApplicationFiled: August 31, 2012Publication date: December 27, 2012Inventors: Kenichi UCHIMOTO, Yasuji YASUMITSU
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Publication number: 20120323199Abstract: A leakage proof base material for paper diaper is provided which is more convenient to use, suitable to be mass produced, more skin-friendly and with a lower cost. The leakage proof base material for paper diaper comprises a leakage proof base material which is composed of a leakage proof membrane as a top layer and a non-textile fabric layer as a bottom layer, and surfaces of the leakage proof membrane and the non-textile fabric layer are combined together partially or entirely. At least one through hole area is disposed on the non-textile fabric layer, the through hole area is composed of a plurality of through holes which are penetrated through the non-textile fabric layer and are spaced at intervals.Type: ApplicationFiled: February 8, 2012Publication date: December 20, 2012Inventors: Po-An Tsai, Charng-Ching Ou, Hsu-Feng Shih
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Publication number: 20120323195Abstract: An absorbent article such as disposable diaper, training pant, and adult incontinence undergarment comprising superabsorbent polymer particles able to absorb and contain body exudates having improved absorption properties and, therefore, reduce leakage, especially at the first gush, i.e. when the article starts to be wetted.Type: ApplicationFiled: June 15, 2012Publication date: December 20, 2012Inventors: Bruno Johannes Ehrnsperger, Marc Jennewein, Marion Michnacs, Andrea Peri, Maike Thomann
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Publication number: 20120323200Abstract: A cooling composition comprising a cooling agent together with a polyethylene glycol (PEG) or a mixture of different PEGs having high molecular weights and an absorbent article comprising the cooling composition. The cooling agent of the composition has a reduced tendency to vaporize and evaporate at room temperature.Type: ApplicationFiled: June 14, 2012Publication date: December 20, 2012Applicant: The Procter & Gamble CompanyInventor: Alessandro Gagliardini
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Publication number: 20120315454Abstract: A thermoplastic film composition that includes a polymer blend of multiple inherently incompatible polymer components is described. The composition includes a polymer blend having about 5 wt. % to about 45 wt. % of a plasticized natural polymer, about 5 wt. % to about 40 wt % of a polyolefin, a biodegradable polymer, and a compatibilizer with both a polar and a non-polar moiety on the same polymer molecule. The total plasticized natural and biodegradable polymers constitute a majority or predominant phase (?51 wt. %), while petroleum-based olefinic polymers form the minority phase. The composition can be made into a film containing at least one renewable, natural polymer component. Also described are the articles of manufacture that may use such films.Type: ApplicationFiled: December 1, 2010Publication date: December 13, 2012Inventors: James H. Wang, Yan Wang, Xueen George Hao, Tongtong Zhang
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Publication number: 20120316532Abstract: Topsheets characterized by having a certain basis weight, activating the topsheet prior to making a continuous bonded pattern on it, where multiple continuous patterns are optionally arranged along the longitudinal axis of the topsheet. The topsheets are optionally, further characterized with pre-bonding, embossing, opacity, and/or coloring.Type: ApplicationFiled: May 14, 2012Publication date: December 13, 2012Inventor: Sarah Ann MCCORMICK
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Publication number: 20120316529Abstract: Absorbent cores for disposable absorbent articles are provided. The absorbent cores each comprise at least two absorbent structures comprising a substrate layer and an absorbent layer, of which one absorbent structure comprises channels and one is free of 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: 20120310186Abstract: The present disclosure relates to dressings, such as adhesive bandage, which can have an absorbent pad, and non-stick film secured thereto which has at least two different polymeric materials, a first polymeric material and a second polymeric material having a lower melting point than the first polymeric material.Type: ApplicationFiled: June 6, 2011Publication date: December 6, 2012Applicant: TYCO HEALTHCARE GROUP LPInventors: Ajit K. Moghe, Richard E. Gahan, Harish A. Patel
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Publication number: 20120310196Abstract: Absorbent structures, and absorbent articles with such structures, comprising water-absorbing polymer having a coating of film-forming polyurethane and therein incorporated a hydrophilic silica.Type: ApplicationFiled: May 1, 2012Publication date: December 6, 2012Inventors: Karl Haeberle, Klaus Dieter Hoerner, Axel Meyer, Carolyn Ann Spitzmueller, Robin Lynn McKiernan
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Publication number: 20120302982Abstract: Provided is a non-woven fabric produced by using a polypropylene-based resin composition containing a specific low-crystalline polypropylene. The non-woven fabric is a non-woven fabric obtained by achieving reductions in denier values of fibers, the non-woven fabric being excellent in dispersibility of the fibers.Type: ApplicationFiled: January 20, 2011Publication date: November 29, 2012Applicant: IDEMITSU KOSAN CO., LTD.Inventors: Tomoaki Takebe, Yutaka Minami, Yohei Koori
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Patent number: 8318306Abstract: The present invention relates to absorbent compositions which exhibit swelling, deswelling, and reswelling behavior. More specifically, absorbent compositions of this invention swell and absorb fluids after exposure to aqueous fluids, deswell and release fluids from the swollen absorbent compositions, and may also reswell and absorb fluids. The swelling-deswelling-reswelling behavior allows enhanced liquid distribution in absorbent composites.Type: GrantFiled: January 30, 2008Date of Patent: November 27, 2012Assignee: Evonik Stockhausen, LLCInventors: Gonglu Tian, Scott J. Smith, Yaru Shi, Richard N. Dodge, Jian Qin
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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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Publication number: 20120289768Abstract: A vaginal insert formed from a composition that, prior to introduction to the vagina, has the physical properties of a liquid, semi-soft gel, paste, foam, or viscous material so that it can be effectively delivered to the vaginal canal. After introduction into the vagina, the composition will expand and/or solidify into a semi-solid or solid structure to substantially fill the entire “H” shaped space of the vagina and a portion of the rugal folds along the length of the vaginal canal. Upon solidifying, the composition defines an insert that, in one embodiment, is suitable for use as a tampon and, in another embodiment, is suitable for use as an incontinence device.Type: ApplicationFiled: June 11, 2012Publication date: November 15, 2012Inventors: Kristin M. Shepard, MaryAnn Zunker
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Publication number: 20120289919Abstract: The present invention provides a body adhering absorbent articles which is capable of absorbing bodily fluids. In particular embodiment of the present invention, provided is an absorbent article which is specifically designed for attachment to a wearer's skin in the vulva region of the wearer's torso.Type: ApplicationFiled: July 26, 2012Publication date: November 15, 2012Inventors: Thomas William Van Den Bogart, Adrienne Rae Loyd, David John Enz, Carmen Lira-Núñez, Suzanne K. Sullivan Conrad, Roxanne Belinda Hallock, Deborah Snell Hannah, Candace Dyan Krautkramer, Mary L. McDaniel
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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: 20120277699Abstract: 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: July 11, 2012Publication date: November 1, 2012Inventors: Larry Tab Randolph, Justin Alexander Long
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Publication number: 20120270111Abstract: Polyolefin woven and nonwoven fibers, filaments and fabrics made therefrom which comprise a melt blend which comprises (a) a polyolefin; and (b) at least one compound of the formula (I) R1-(hydrophilic oligomer) ??(I) wherein R1 is a straight or branched chain alkyl of 22 to 40 carbon atoms and the hydrophilic oligomer is a homo- or co-oligomer consisting of monomer units derived from monomers selected from the group consisting of ethylene oxide, propylene oxide, ethylene glycol, propylene glycol, epichlorhydrin, acrylic acid, methacrylic acid, ethylene imine, caprolactone, vinyl alcohol and vinyl acetate; and wherein the hydrophilic oligomer consists of between 2 and 10 monomer units, exhibit excellent durable wettability. The fabrics are useful in disposable diapers, training pants, feminine napkins, tampons, incontinence care products, wet and dry wipes, wound dressings, surgical capes, filter medial, battery separators and the like.Type: ApplicationFiled: June 14, 2012Publication date: October 25, 2012Applicant: TECHMER PM, LLCInventors: Sheng-Shing Li, Andrew J. Leggio, George H. Menzie, David Devore, John J. McNamara, TaHau Yu, Douglas W. Horsey
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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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Publication number: 20120265161Abstract: A flushable bodily liquid absorbent composite product, having a bodily liquid absorbent core, a moisture barrier layer applied to a garment side of the core, a film moisture break and a tissue backing layer. The tissue backing layer is readily soluble in water and the moisture barrier layer and the film moisture break are readily soluble in cold water. The use of the film moisture break is to absorb small amounts of moisture that is transferred through the moisture barrier in order to prevent weakening of the backing layer and prevent the transfer of positioning adhesive to the consumers garments. Preferred moisture barrier comprises polyvinyl alcohol and the preferred moisture break comprises carboxymethylcellulose or polyacrylimide.Type: ApplicationFiled: July 7, 2009Publication date: October 18, 2012Inventors: John M. Banks, Qian (Michelle) Yang
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Publication number: 20120251597Abstract: Various fibrous articles incorporating a water non-dispersible short-cut polymer microfiber are provided. The water non-dispersible short-cut polymer microfibers can be incorporated into a number of different fibrous articles including personal care products, medical care products, automotive products, household products, personal recreational products, specialty papers, paper products, and building and landscaping materials. In addition, the water non-dispersible short-cut polymer microfibers can be incorporated into nonwoven webs, thermobonded webs, hydroentangled webs, multilayer nonwovens, laminates, composites, wet-laid webs, dry-laid webs, laminates, composites, wet laps, woven articles, fabrics and geotextiles. These various end products can incorporate the water non-dispersible short-cut polymer microfibers in varying amounts based on the desired end use.Type: ApplicationFiled: January 18, 2012Publication date: October 4, 2012Applicant: EASTMAN CHEMICAL COMPANYInventors: Rakesh Kumar Gupta, Daniel William Klosiewicz, Melvin Glenn Mitchell, Mark Dwight Clark, Chris Delbert Anderson
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Publication number: 20120245545Abstract: A disposable absorbent article worn about the lower torso of a wearer includes at least one pair of side panels connecting a first waist region to a second waist region forming a waist opening and a pair of leg openings. Each side panel includes a waist region, a hip region and a leg region wherein the waist region, the hip region and the leg region differs structurally, functionally, and visually to provide an improved initial fit and sustained fit while exhibiting a garment-like appearance.Type: ApplicationFiled: June 4, 2012Publication date: September 27, 2012Inventors: Donald Carroll Roe, Barry Robert Feist, Krista Beth Comstock, Lisa Jane Goodlander
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Publication number: 20120245546Abstract: A disposable absorbent article worn about the lower torso of a wearer includes at least one pair of side panels connecting a first waist region to a second waist region forming a waist opening and a pair of leg openings. Each side panel includes a waist region, a hip region and a leg region wherein the waist region, the hip region and the leg region differs structurally, functionally and visually to provide an improved initial fit and sustained fit while exhibiting a garment-like appearance.Type: ApplicationFiled: June 4, 2012Publication date: September 27, 2012Inventors: Donald Carroll Roe, Barry Robert Feist, Krista Beth Comstock, Lisa Jane Goodlander
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Publication number: 20120238983Abstract: A composition applied on a substrate comprised by, or forming, or used for manufacturing of, a disposable absorbent article may be used for reducing the adherence of feces or menses to the human skin. The composition deposited on the substrate does not affect negatively the manufacturing process of the disposable absorbent article and imparts desirable fluid handling properties to the substrate. The composition may also be desirably deposited on a substrate used as, or in a wipe.Type: ApplicationFiled: March 12, 2012Publication date: September 20, 2012Applicant: The Procter & Gamble CompanyInventor: Victor Nicholas Vega
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Patent number: 8269060Abstract: An absorbent material formed at least in part of a crosslinked polymer. The absorbent material has a centrifuge retention capacity as determined by a Centrifuge Retention Capacity Test of at least about 20 g/g and a gel bed permeability under load as determined by a Gel Bed Permeability Under Load Test of at least about 300×10?9 cm2 or a free swell gel bed permeability as determined by a Free Swell Gel Bed Permeability Test of at least about 2,500×10?9 cm2. The crosslinked polymer may comprise either at least about 75 weight percent anionic polymer or at least about 75 weight percent cationic polymer. In one embodiment, the cross-linked polymer is surface treated with a water soluble non-cross-linked polymer having a potential for becoming charged opposite that of the cross-linked polymer.Type: GrantFiled: December 11, 2009Date of Patent: September 18, 2012Assignee: Evonik Stockhausen, LLCInventors: Jian Qin, Xiaomin Zhang, Debra Ann Graverson
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Publication number: 20120232511Abstract: An absorbent article, for example, a diaper, a training pant, a swimming pant, or a feminine care article, and so forth, includes a topsheet, which forms a body-facing surface of the absorbent article, a backsheet disposed distally from the topsheet, which forms a garment-facing surface of the absorbent article, an absorbent core positioned between the topsheet and the backsheet, and a heat-activatable expandable treatment on the garment-facing surface. The heat-activatable expandable treatment is present on the garment-facing surface in a visually distinctive shape or pattern and provides visual and/or tactile cues to a user of the absorbent article.Type: ApplicationFiled: March 11, 2011Publication date: September 13, 2012Inventors: Herb Velazquez, Tom Flicker, Duane McDonald, Suzanne Murray, Katherine C. Wheeler, Dean M. Wydeven, Lisha Yu
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Publication number: 20120232508Abstract: 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 a first absorbent layer and a second absorbent layer provided in this order from the top sheet side, and having a longitudinal direction and a width direction; the second absorbent layer contains an absorbent polymer and/or pulp fibers; the first absorbent layer contains an absorbent polymer but does not contain a pulp fiber between nonwoven fabric sheets; and the second absorbent layer extends outward in the longitudinal direction beyond the first absorbent layer.Type: ApplicationFiled: November 2, 2010Publication date: September 13, 2012Inventor: Makiko Urushihara
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Publication number: 20120232510Abstract: The present invention generally relates to absorbent sanitary articles for absorption of body fluids and in particular to a sanitary article of this type including a buffer composition adapted to adjust the natural pH of the absorbed body fluid to a pH that is compatible with the pH of skin.Type: ApplicationFiled: March 7, 2011Publication date: September 13, 2012Inventors: Joseph Greco, David Gubernick, Claudia Massiel Montoya
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Publication number: 20120232513Abstract: An extruded web is disclosed. The extruded web can be either a nonwoven material of a films. The web comprises a plasto-elastic material where the plasto-elastic material is a combination of a first polyolefin and a second polyolefin (either a polymeric blends or a polymeric mixture). The claimed combination of polyolefins results in a material that has substantially plastic properties when a sample taken from said web is subjected to an initial strain cycle (such that the web is provided with a set of at least 30% by an initial strain cycle) and substantially elastic properties when a sample taken from the web is subjected to at least a second strain cycle.Type: ApplicationFiled: May 23, 2012Publication date: September 13, 2012Inventors: Jean-Philippe Marie Autran, Donald Carroll Roe
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Publication number: 20120232512Abstract: 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 plasto-elastic material joined to or disposed on at least one of component of the absorbent article to impart sizing or shaping capabilities to the article. The plasto-elastic material has substantially plastic properties when said absorbent article is subjected to an initial strain cycle, for example, when the article is placed on a wearer, and has substantially elastic properties when subjected to a second strain cycle such as when the article is subsequently adjusted to conform to the size of the wearer. 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: May 17, 2012Publication date: September 13, 2012Inventors: Jean-Philippe Marie Autran, Donald Carroll Roe, Fred Naval Desai
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Publication number: 20120228180Abstract: An absorbent article comprising an absorbent body including a top sheet, a back sheet and an absorbent laminate disposed between the top sheet and the back sheet, wherein: the absorbent body has a longitudinal direction and a width direction; the absorbent laminate comprises a fiber assembly layer containing pulp fibers, and a sheet-shaped absorbent layer containing an absorbent polymer but not containing a pulp fiber between nonwoven fabric sheets; the absorbent article is folded at a fold line extending in the width direction; and the fiber assembly layer has an opening on the fold line.Type: ApplicationFiled: November 2, 2010Publication date: September 13, 2012Inventor: Makiko Urushihara
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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: 8252848Abstract: A method for re-mobilizing superabsorbent polymer particles which have previously been immobilized by a solidified thermoplastic composition comprising at least 30 weight-% of a thermoplastic polymer. The superabsorbent polymer particles are separated from the solidified thermoplastic composition by using a supercritical fluid comprising carbon dioxide, propane, or mixtures thereof. Separation may be further improved by the use of one or more co-solvents.Type: GrantFiled: February 25, 2011Date of Patent: August 28, 2012Assignee: The Procter & Gamble CompanyInventors: Carsten Luckert, Marion Michnacs, Carsten Zetzl
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Publication number: 20120215193Abstract: An automatically self-adjusting variable permeability providing (AVPP) layer is provided over and in operative interaction with a wound site containing a wound to the integumentary system of a living creature such as the skin of a human patient. The AVPP layer has the capability of automatically changing in respective fluid permeability characteristics provided by respective subregions of the AVPP layer where the changes are in reaction to extant or changed conditions in corresponding micro-zones of the wound site. The automatic self-adjusting behaviors of the respective subregions of the AVPP layer can include providing a faster rate of vapor removal for micro-zones of the wound site that are too wet and providing a slower rate of vapor removal or essentially no vapor removal for micro-zones of the wound site that are too dry.Type: ApplicationFiled: February 22, 2012Publication date: August 23, 2012Inventors: Oleg Siniaguine, Elena Kachiguina
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Patent number: 8247640Abstract: The present invention concerns highly swellable absorption mediums with a reduced caking tendency at high humidity and/or high temperatures, wherein a swellable polymer is coated with a non-ionic, nitrogen-containing surfactant and optionally a Lewis acid and then reacted by heating.Type: GrantFiled: March 5, 2010Date of Patent: August 21, 2012Assignee: Evonik Stockhausen GmbHInventors: Gerd Jonas, Richard Mertens, Markus Frank
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Patent number: 8247639Abstract: An absorbent article 1 has an extensible absorbent member 4 and is extensible as a whole. The absorbent member 4 has three-dimensionally dispersed therein a large number of small absorbent clusters 10a or 10b containing a superabsorbent polymer 11 and fibers 12, 13, 14. The small clusters 10a or 10b are dispersively arranged in a web containing crimped fibers. The small clusters include those composed of a superabsorbent polymer particle 11 and a large number of fibers 12 adhered to the particle 11 and those composed of a helically crimped fiber 13, a superabsorbent polymer particle 11, and fibers 14, the polymer particle 11 and the fibers 14 being taken into the helix of the crimped fiber 13.Type: GrantFiled: January 24, 2005Date of Patent: August 21, 2012Assignee: KAO CorporationInventors: Namie Itoi, Masahito Tanaka, Shinsuke Nagahara, Tetsuyuki Kigata
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Publication number: 20120209235Abstract: The present invention relates to a disposable absorbent article comprising a chassis having a front waist region, a back waist region, and a crotch region between the front and back waist regions, said chassis having two opposing longitudinal edges and two perpendicularly placed end edges, said chassis further comprising: a. a liquid permeable topsheet spanning at least the crotch region; b. a backsheet spanning at least the crotch region; c. an absorbent core disposed between said topsheet and backsheet; and d. a elastic member disposed along at least one opposing longitudinal edge in either the front waist or back waist region of said chassis wherein said member comprises an unapertured, skinless elastomeric layer wherein said layer exhibits an Energy Recovery Value of at least about 0.Type: ApplicationFiled: April 26, 2012Publication date: August 16, 2012Inventors: Todd Leon Mansfield, Ebrahim Rezai, James Thomas Bader, Adam Daniel Schmidtz
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Publication number: 20120209234Abstract: The present invention relates to a regenerated cellulose fiber, which is characterized by the combination of the following features: the fiber has in its dry condition a collapsed hollow cross-sectional structure the fiber has in its wet condition a cross-sectional structure with cavities the fiber is segmented in the longitudinal direction by dividing walls there is incorporated into the fiber an absorbent polymer, in particular carboxymethylcellulose. The fiber may be obtained by a process, wherein there is admixed a carbonate as well as an absorbent polymer, in particular carboxymethylcellulose, to a viscose dope.Type: ApplicationFiled: July 9, 2010Publication date: August 16, 2012Applicant: Kelheim Fibres GmbHInventors: Ingo Bernt, Walter Roggenstein, Calvin Woodings, Haio Harms
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Publication number: 20120203191Abstract: A water-absorbent sheet comprising a structure in which an absorbent layer containing a water-absorbent resin and an adhesive is sandwiched with nonwoven fabrics from an upper side and a lower side of the absorbent layer, wherein the water-absorbent sheet has a laminate structure in which the absorbent layer is fractionated into a primary absorbent layer and a secondary absorbent layer with a breathable fractionating layer, and wherein at least one sheet out of the nonwoven fabrics is a spunbond nonwoven fabric, and at least a nonwoven fabric at a lower side out of the nonwoven fabrics is a hydrophilic nonwoven fabric.Type: ApplicationFiled: October 1, 2010Publication date: August 9, 2012Applicant: SUMITOMO SEIKA CHEMICALS CO., LTD.Inventors: Junichi Maruo, Syuji Tsuno, Hideki Matsuhita, Masayoshi Handa
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Patent number: 8237011Abstract: A composition of matter includes a flexible substrate and a coating disposed on the substrate. The coating comprises about 10-60 wt-% of a waxy compound and about 90-40 wt-% of a diluent. The coating forms a stable liquid mixture at a temperature between about 35° C. and about 100° C., has a liquefaction temperature of at least about 30° C., and has a contact angle with a flat surface of the substrate of less than about 35° when measured at a temperature of 60° C.Type: GrantFiled: November 19, 2009Date of Patent: August 7, 2012Assignee: McNeil—PPC, Inc.Inventors: Linda M. Pierson, Susan K. Brown-Skrobot, Ching-Yun M. Yang
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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: 20120197226Abstract: An absorptive article 1 includes a liquid-permeable top sheet 20, a liquid impermeable back sheet 30, and an absorber 50 disposed between the top sheet 20 and the back sheet 30. The absorber 50 has a layered structure including an upper absorbent layer 511 disposed on the side of the top sheet 20 and a lower absorbent layer 512 disposed on the side of the back sheet 30. The upper absorbent layer 511 is composed of virgin pulp and virgin polymer, and the lower absorbent layer 512 contains recycled pulp and recycled polymers.Type: ApplicationFiled: September 16, 2010Publication date: August 2, 2012Applicant: DAIO PAPER CORPORATIONInventor: Yuiko Nakatani
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Publication number: 20120191056Abstract: It is an object of the invention to provide a layered absorbent sheet with excellent absorption properties including fluid retention, fluid diffusibility and absorbed fluid retention volume, and with particularly excellent deformation resistance against deformation by twisting and wrinkles. A layered absorbent sheet comprising a first sheet layer on the absorbing side, a second sheet layer on the non-absorbing side, and a super-absorbent polymer layer between the first sheet layer and second sheet layer, wherein the first sheet and/or second sheet are bulky absorbent sheets, the bulky absorbent sheets comprising 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
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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