Collagen Or Gelling Material Patents (Class 604/368)
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Patent number: 9884137Abstract: Provided is an absorbent material and a method of making an absorbent material. The absorbent material comprises a blend of a super-absorbent first type of gel-forming fiber with a second type of gel-forming fiber, wherein the super-absorbent first type of gel-forming fiber is formed from a super-absorbent polymer. Such absorbent materials are useful in the manufacture of absorbent articles such as wound dressings.Type: GrantFiled: September 30, 2013Date of Patent: February 6, 2018Assignee: Speciality Fibres and Materials LimitedInventors: Graeme Kettlewell, Phillip Baker
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Patent number: 9818549Abstract: A capacitor with an anode and a dielectric over the anode. A first conductive polymer layer is over the dielectric wherein the first conductive polymer layer comprises a polyanion and a first binder. A second conductive polymer layer is over the first conductive polymer layer wherein the second conductive polymer layer comprises a polyanion and a second binder and wherein the first binder is more hydrophilic than the second binder.Type: GrantFiled: September 10, 2014Date of Patent: November 14, 2017Assignee: KEMET Electronics CorporationInventor: Antony P. Chacko
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Patent number: 9795724Abstract: Systems, methods, and apparatuses for treating a tissue site with reduced pressure are described. The system includes a manifold configured to be placed adjacent the tissue site, and a sealing member configured to be placed over the tissue site and the manifold. The system also includes a reduced-pressure source fluidly coupled to the manifold through the sealing member. The system further includes a pouch having an upstream layer having a first thickness, a downstream layer having a second thickness, and an absorbent member enclosed between the upstream layer and the downstream layer. The second thickness is greater than the first thickness. The upstream layer may have a hydrophilic side adjacent the absorbent member, and the downstream layer may have a hydrophobic side adjacent the absorbent member.Type: GrantFiled: January 8, 2014Date of Patent: October 24, 2017Assignee: KCI Licensing, Inc.Inventors: David George Whyte, Christopher Brian Locke, Richard Daniel John Coulthard
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Patent number: 9763837Abstract: An absorbent article, the absorbent article being a personal hygiene article, comprising a liquid permeable top sheet, a liquid impermeable back sheet, and an absorbent core enclosed between the top sheet and the back sheet, and a fluid flow control member arranged between the top sheet and the backsheet, said fluid flow control member being of a nonwoven material comprising a three dimensional network of fibres, said fibres having a thickness of 200-700 ?m, said nonwoven material having a strain of max 50% at 5 kPa.Type: GrantFiled: December 1, 2011Date of Patent: September 19, 2017Assignee: SCA HYGIENE PRODUCTS ABInventors: Charlotte Persson, Patrik Andersson, Kent Vartiainen, Charlotta Hanson, Britt-Marie Wiezell, Lori-Ann S. Prioleau, Thomas R. LaLiberte, Leigh E. Wood, Kerstin K. Ehlers, Peter P. Kitzer
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Patent number: 9717817Abstract: Cellulosic pulp structures integrating unreacted quantities of an inorganic peroxide and a destabilizing acid, as binary components of an odor control system, absorbent articles incorporating such structures, and various methods of forming the same, are disclosed herein. The components are adapted to react in the presence of an aqueous fluid to produce hydrogen peroxide, thereby providing an antimicrobial and odor mitigating effect.Type: GrantFiled: December 30, 2013Date of Patent: August 1, 2017Assignee: INTERNATIONAL PAPER COMPANYInventor: Brent A. Petersen
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Patent number: 9713556Abstract: An absorbent core (28) and an absorbent article (20) comprising the core. The absorbent core comprises a core wrap (16, 16?) enclosing an absorbent material (60), wherein the absorbent material comprises at least 80% of superabsorbent polymers (“SAP”) by weight of the absorbent material. The absorbent core has a Relative Wet Caliper Increase (RWCI) after compression of less than 10% as measured by the Wet Caliper And Compression Force (WCACF) Test as described herein, and wherein the core wrap (16, 16?) is at least partially sealed so that substantially no absorbent material leaks out of the core wrap while performing the WCACF Test.Type: GrantFiled: December 9, 2013Date of Patent: July 25, 2017Assignee: The Procter & Gamble CompanyInventors: Blanca Arizti, Ernesto Bianchi, Bruno Johannes Ehrnsperger, Hans Adolf Jackels, Carsten Heinrich Kreuzer, Rodrigo Rosati
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Patent number: 9713557Abstract: An absorbent article having an absorbent core comprising a core wrap (16, 16?) enclosing an absorbent material (60), which comprises at least 80% of superabsorbent polymers (“SAP”) by weight. The absorbent core further comprises at least one channel (26, 26?) and an acquisition-distribution system (ADS) between the topsheet and the absorbent core, the ADS comprising one, two or more layers wherein the ADS does not comprise a layer comprising at least 50% by weight of synthetic fibers and having a basis weight above 150 gsm.Type: GrantFiled: December 9, 2013Date of Patent: July 25, 2017Assignee: The Procter & Gamble CompanyInventors: Blanca Arizti, Ernesto Bianchi, Bruno Johannes Ehrnsperger, Hans Adolf Jackels, Carsten Heinrich Kreuzer, Rodrigo Rosati
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Patent number: 9700464Abstract: An absorbent article which has in a longitudinal direction from the front side to the rear side a front waist region, a rear waist region and a crotch region located between the front and rear waist regions. An absorbent sheet is provided between a topsheet and a second sheet which includes at least one liquid-pervious sheet having sandwiched therein an absorbent polymer that is present between a topsheet and a second sheet. The second sheet has a higher liquid diffusibility than the topsheet, the topsheet, a backsheet, an absorption body and the second sheet are disposed across the front waist region, the crotch region and the rear waist region, and the absorbent sheet is disposed in at least a part of the rear waist region.Type: GrantFiled: November 14, 2011Date of Patent: July 11, 2017Assignee: Unicharm CorporationInventors: Haruki Toda, Kaiyou Nakajima
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Patent number: 9693911Abstract: An absorbent core assembly for use in a product for absorbing a liquid is disclosed. The core assembly has a first section and a second section. The first section is a quilted porous material that contains a slow acting but high absorption capacity SAP therein. The, second section is a quilted porous material that contains a fast acting but lower absorption capacity SAP therein. The first and second sections are in fluid communication with each other, whereupon a liquid which is exposed to the core assembly flows through the first section to the fast acting SAP in the second section to be absorbed quickly and rapidly by the fast acting SAP therein, while the slow acting SAP desorbs or takes liquid away from the fast acting SAP as well as absorbing the liquid itself to thereby trap the liquid in the core assembly.Type: GrantFiled: February 12, 2016Date of Patent: July 4, 2017Assignee: Advanced Absorbent Technologies, LLCInventors: Donald A. Sheldon, Joseph Howard, William Terenzoni
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Patent number: 9644177Abstract: In one aspect, films that can serve as a model or mimic for the basal lamina are described herein. In some embodiments, a film described herein comprises a top surface and a bottom surface in facing opposition to the top surface, wherein the film is formed from Type I collagen and one or more additional extracellular matrix proteins. The additional extracellular matrix proteins, in some cases, comprise one or more of Type IV collagen, laminin, and fibronectin. Moreover, in some instances, the weight ratio of Type I collagen to the additional extracellular matrix proteins in the film is at least about 40:1.Type: GrantFiled: July 12, 2013Date of Patent: May 9, 2017Assignee: BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEMInventors: Young-Tae Kim, Sreevidhya Banda, Deepika Tamuly
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Patent number: 9572728Abstract: A disposable absorbent article comprising an absorbent core located in a chassis and comprising absorbent particulate polymer material having a basis weight that varies across the absorbent core. Methods for making such an absorbent core and corresponding disposable absorbent article are also disclosed.Type: GrantFiled: June 17, 2009Date of Patent: February 21, 2017Assignee: The Procter & Gamble CompanyInventors: Gregory Ashton, Masaharu Nishikawa, Maja Wciorka
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Patent number: 9554951Abstract: An absorbent article comprising a wearer-facing topsheet, a backsheet and an absorbent core disposed between the topsheet and the backsheet, characterized in that the absorbent core comprises: a first absorbent layer comprising a first substrate, a layer of first superabsorbent polymer particles deposited on the first substrate, and a fibrous layer of thermoplastic adhesive material covering the layer of first superabsorbent polymer particles; a second absorbent layer, the second absorbent layer comprising a second substrate and a mixed layer deposited on the second substrate, the mixed layer comprising a mixture of second superabsorbent particles and cellulosic fibers, the first absorbent layer and the second absorbent layer being combined together such that at least a portion of the fibrous layer of thermoplastic adhesive material of the first absorbent layer contacts at least a portion of the mixed layer of the second absorbent layer, and wherein the first absorbent layer is placed closer to the topsheet tType: GrantFiled: June 28, 2013Date of Patent: January 31, 2017Assignee: The Procter & Gamble CompanyInventors: Birgit Wirtz, Walter Pieter Hendrik Laurentius Van Der Klugt, Rodrigo Rosati, Ernesto G. Bianchi, Aniruddha Chatterjee, Carsten Heinrich Kreuzer, Holger Beruda
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Patent number: 9522087Abstract: A method of manufacturing a tampon includes transporting a web of material in a machine direction. The web of material has a base web and an absorbent web. The absorbent web has a free end and a bonded end wherein the bonded end is bonded to the base web. The free end of the absorbent web is moved in spaced relationship with the base web. The base web is bonded to a substrate.Type: GrantFiled: October 31, 2012Date of Patent: December 20, 2016Assignee: KIMBERLY-CLARK WORLDWIDE, INC.Inventors: Charles Robert Tomsovic, Nicholas Scott Wolter, Wayne Beyer, Ronald A. Hilt, Joshua Fiedorowicz, Brian Alberts, Martin Gottvald, Steven Craig Gehling
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Patent number: 9486371Abstract: An absorbent core for use in an absorbent article, the absorbent core including a first absorbent layer comprising a first substrate, a layer of first superabsorbent polymer particles deposited on the first substrate on a deposition area and a fibrous layer of thermoplastic adhesive material covering the layer of first superabsorbent polymer particles, and a second absorbent layer comprising a second substrate and a mixed layer comprising a mixture of second superabsorbent particles and cellulosic fibers deposited on the second substrate. The first and second absorbent layers are combined together such that at least a portion of the fibrous thermoplastic adhesive material of the first absorbent layer contacts at least a portion of the mixed layer of the second absorbent layer.Type: GrantFiled: June 28, 2013Date of Patent: November 8, 2016Assignee: The Procter & Gamble CompanyInventors: Birgit Wirtz, Walter Pieter Hendrik Laurentius Van Der Klugt, Rodrigo Rosati, Ernesto G. Bianchi, Aniruddha Chatterjee, Carsten Heinrich Kreuzer, Holger Beruda
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Patent number: 9468566Abstract: Absorbent structures for diapers are provided, comprising, immobilized onto a supporting sheet, an absorbent layer with absorbent material containing superabsorbent polymer particles and therein, in the front region, a first and a second substantially longitudinal channel, each being free of said superabsorbent polymeric particles, for improved fit and/or performance throughout the use thereof.Type: GrantFiled: June 8, 2012Date of Patent: October 18, 2016Assignee: The Procter & Gamble CompanyInventors: Rodrigo Rosati, Carsten Heinrich Kreuzer, Hans Adolf Jackels, Blanca Arizti, Ernesto G. Bianchi, Donald Carroll Roe
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Patent number: 9456935Abstract: An absorbent article comprising a raised barrier is provided. The raised barrier extends into a front waist region, a crotch region, and a back waist region of the absorbent article.Type: GrantFiled: December 18, 2012Date of Patent: October 4, 2016Assignee: The Procter & Gamble CompanyInventors: Nelson Edward Greening, II, Marie B. O'Reilly, Barry Robert Feist, Lisa J. Goodlander, Rachael Eden Walther, Tina Maria Glahn, Kathleen Quinlan Ames-Ooten, Sue Ann Mills, Vera Hille, Nicolette Johanna Birgitta Maria Vanderklaauw, Donald Carroll Roe, Sharon Irene Grenberg, Alfred Grant Edwards, Bruce J. Bader, Robert Christopher Frost
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Patent number: 9381122Abstract: In an absorbent article, in which each of pressure-bonded parts has a linear shape extending in the length direction of the absorbent article, the pressure-bonded parts are formed with spacing at regular intervals in a discontinuous manner with respect to the length direction of the absorbent article and are also formed in multiple lines with spacing at regular intervals with respect to the width direction of the absorbent article, depressed parts are formed on a back-sheet-facing surface of an absorbent body that is located beneath the pressure-bonded parts, each of an excretory opening-contacting region in a top sheet and the pressure-bonded parts contains a blood lubricity-imparting agent having a kinematic viscosity of 0.01 to 80 mm2/s at 40° C., a water hold percentage of 0.01 to 4.0 mass % and a weight average molecular weight of less than 1,000, and the amount of the blood lubricity-imparting agent in the pressure-bonded parts is larger than that in the excretory opening-contacting region.Type: GrantFiled: September 20, 2013Date of Patent: July 5, 2016Assignee: UNICHARM CORPORATIONInventors: Akira Hashino, Yuki Noda, Tatsuya Tamura
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Patent number: 9364032Abstract: A fabric is provided having a defined pattern of hydrophobic and hydrophilic regions that extend entirely through the thickness of the fabric so that the defined pattern is identical on the inner and outer surfaces of the fabric. The defined pattern is configured so that the hydrophilic regions are all in communication or interconnected so that moisture, such as perspiration, can wick not only from the inner to the outer surface of the fabric but also throughout the surface of the fabric and in several directions on the fabric so that the surface area of the wetted hydrophilic regions increases. The defined pattern may be further configured so that none of the hydrophobic regions are in communication.Type: GrantFiled: April 28, 2014Date of Patent: June 14, 2016Assignee: Under Armour, Inc.Inventors: Thomas White, Mark Cumiskey
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Patent number: 9285302Abstract: A method for determining the time dependent effective permeability and the uptake kinetics of hydrogel-forming superabsorbent polymer particles under pressure.Type: GrantFiled: June 15, 2012Date of Patent: March 15, 2016Assignee: The Procter & Gamble CompanyInventors: Bruno Johannes Ehrnsperger, Marc Jennewein, Marion Michnacs, Andrea Peri, Maike Thomann
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Patent number: 9233519Abstract: A water-absorbent sheet structure comprises a structure in which an absorbent layer containing a water-absorbent resin (A) and a water-absorbent resin (B) is sandwiched with fibrous webs from an upper side and a lower side of the absorbent layer, characterized in that the water-absorbent resin (A) and the water-absorbent resin (B) are contained in a total amount of from 100 to 1,000 g/m2, and that the water-absorbent resin (A) and the water-absorbent resin (B) have the following properties: (1) the water-absorbent resin (A) having a water-retention capacity of saline solution (Ra) from 15 to 55 g/g; (2) the water-absorbent resin (B) having a water-retention capacity of saline solution (Rb) from 10 to 50 g/g; and (3) Ra and Rb mentioned above satisfies the relationship of the following formula: Ra?Rb?(g/g).Type: GrantFiled: December 27, 2010Date of Patent: January 12, 2016Assignee: SUMITOMO SEIKA CHEMICALS CO., LTD.Inventors: Kiyoshi Yamaguchi, Syuji Tsuno, Haruka Inaba, Masayoshi Handa
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Patent number: 9220804Abstract: A surgical use, healing, and personal hygiene devices, in which, among other components, includes: a first layer of bamboo fibers or organic cotton, adapted to stay in contact with the skin of a user; a layer of non-woven fabric having in a central place an element made of polypropylene and thermostable elastomers fibers, in which is absorbed a nanometric tourmaline powder; and a layer opposite to the first layer including materials that allow “ventilation” to the device and, at the same time, form a moisture barrier. Also describes the use of nano tourmaline powder in these applications.Type: GrantFiled: July 11, 2013Date of Patent: December 29, 2015Inventors: Jose Zavala, Gabriel C Damian
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Patent number: 9220646Abstract: Disclosed herein is a personal care absorbent article such as a feminine hygiene absorbent personal care article for receiving a body exudate such as menses. The article includes a topsheet layer, a backsheet layer, at least one absorbent core layer positioned between the topsheet layer and the backsheet layer, optionally a pair of wings, and a decolorization means associated with the article for altering the visual appearance and/or physical characteristics of the a body exudate. The use of the decolorization means provides several benefits to the end user including the creation of a visually smaller stain on the top surface of the topsheet layer and a possible reduction in staining of the wearer's apparel should the body exudate leak from or off of the article being worn.Type: GrantFiled: March 27, 2013Date of Patent: December 29, 2015Assignee: Kimberly-Clark Worldwide, Inc.Inventors: SangWook Lee, Shruti Aryal, Franz Aschenbrenner, JunMo Gil, Priscilla Eng Choo Goh, Kenneth G. Heckner, DooHong Kim, Ali Yahiaoui, Jun Zhang
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Patent number: 9198746Abstract: In one embodiment, a medical device includes a resorbable material that is configured to be disposed within the body of the patient proximate a bodily implant. The resorbable material is configured to frictionally retain the implant in place within the body of the patient for at least a period of time. In one embodiment, a kit includes an implant and a resorbable material. The implant is configured to be disposed within a body of a patient. The resorbable material is configured to be disposed within the body of the patient proximate the implant to frictionally retain the implant in place within the body of the patient for a period of time. The resorbable material is configured to be resorbed by the body after the period of time.Type: GrantFiled: August 27, 2012Date of Patent: December 1, 2015Assignee: Boston Scientific Scimed, Inc.Inventors: Timothy P. Harrah, Kenneth Daignault
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Patent number: 9161869Abstract: A feminine hygiene absorbent personal care article includes a topsheet layer, a backsheet layer, at least one absorbent core layer positioned between the topsheet layer and the backsheet layer and decolorizing agents positioned on at least one decolorizing agent-containing layer, adjacent the article side edges, with the decolorizing agent-containing layer extending laterally beyond the lateral side edges of the absorbent core layer and being noncontinuous over at least a portion of the article in the article transverse direction.Type: GrantFiled: March 27, 2013Date of Patent: October 20, 2015Assignee: Kimberly-Clark Worldwide, Inc.Inventors: SangWook Lee, Shruti Aryal, Franz Aschenbrenner, JunMo Gil, Priscilla Eng Choo Goh, Kenneth G. Heckner, DooHong Kim, Ali Yahiaoui, Jun Zhang
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Patent number: 9144289Abstract: The present invention relates to a wrinkle-removing apparatus. When the wrinkle removing apparatus of the present invention adopting a vacuum suction system is tightly applied to the shallow wrinkles on a forehead or to deep wrinkles, a vacuum is created by means of the elasticity of the wrinkle-removing apparatus, in order to strongly suck and pull wrinkles outwardly from the skin. Repeated use of the apparatus with the above-described condition enables a substance such as subcutaneous fat or collagen to replace the wrinkles at the back surface of the wrinkled skin when wrinkles are pulled outwardly from the skin, and finally, skin wrinkles are removed even when the apparatus is no longer used.Type: GrantFiled: August 7, 2010Date of Patent: September 29, 2015Inventor: Yong Jin Kim
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Patent number: 9101352Abstract: A kit is provided including a base with an insert which has a plurality of compartments therein. The compartments are in fluid communication with each other. Liquid bleeding control agent is expressed into the base and allowed to flow to each of the compartments, such as through ports and inside slots between adjacent compartments. Pads reside within each of the compartments, which each include a gauze portion and a gel foam portion. The gel foam portion is wetted by the liquid bleeding control agent, which can be expressed from a syringe provided as a portion of the kit and which flows into the compartments for uniform wetting of gel foam portions of each of the pads. Pads are used during a surgical procedure and then returned to vacant compartments, so that a quick check for remaining vacant compartments indicates whether or not any pads have remained within the surgical site.Type: GrantFiled: August 22, 2012Date of Patent: August 11, 2015Inventors: Kenneth Light, Barry L. Shevick
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Patent number: 9089457Abstract: A bodily fluid absorbent article adapted to absorb bodily fluid over a wide range thereof. An absorbent structure in the bodily fluid absorbent article includes an upper absorbent component and a lower absorbent component. The absorbent structure further includes one of a dispersing surface constituting the upper absorbent component and kept in contact with the lower absorbent component and a dispersing surface constituting the lower absorbent component and kept in contact with the upper absorbent component. Such dispersing surface exhibits a dispersion velocity for bodily fluid higher than those exhibited by the absorbent sections defined immediately above and under this dispersing surface.Type: GrantFiled: September 16, 2011Date of Patent: July 28, 2015Assignee: Unicharm CorporationInventors: Yusuke Kawakami, Atsushi Tsukuda, Hitomi Nakao
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Patent number: 9072807Abstract: An absorbent article having a pad configuration, including superabsorbent polymer particles. Superabsorbent polymer particles are interposed between opposed surfaces of first and second layers overlapping with each other to form an absorbent article. The article includes an absorbing region and a sealing region. In the absorbing region, the superabsorbent polymer particles are bonded to the second layer with a hot melt adhesive. In the sealing region, the first layer and the second layer are joined to each other to surround the absorbing region.Type: GrantFiled: December 19, 2011Date of Patent: July 7, 2015Assignee: UNICHARM CORPORATIONInventors: Kunihiko Katsuragawa, Kenichi Sasayama, Makoto Ichikawa
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Patent number: 9072635Abstract: An absorbent article is formed by interposing superabsorbent polymer particles between overlapping two sheets. The pad-shaped absorbent article is composed of superabsorbent polymer particles bonded to the sheet with a hot melt adhesive, absorbing areas where the sheets are not bonded and sealing areas where the sheets are bonded together and surrounding the absorbing areas. Opposed two adjacent bonding areas of the absorbing areas have the sealing areas in between and facing edges which has the sealing areas in between. One of the facing edges is defined by a wavy line having crest and trough portions.Type: GrantFiled: January 25, 2012Date of Patent: July 7, 2015Assignee: UNICHARM CORPORATIONInventors: Kunihiko Katsuragawa, Kenichi Sasayama, Makoto Ichikawa
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Patent number: 9066837Abstract: An absorbent article with an annular absorbent member. The absorbent article has a liquid-permeable top sheet, a liquid-impermeable back sheet, an annular absorbent member and a second absorbent member. The annular absorbent member is disposed between the top sheet and the back sheet. The annular absorbent member absorbs and retains a liquid passing through the top sheet. The annular absorbent member defines an aperture in a central portion thereof. The second absorbent member is disposed between the annular absorbent member and the back sheet. The second absorbent member has a visible area aligned with a position of the aperture of the annular absorbent member.Type: GrantFiled: October 29, 2010Date of Patent: June 30, 2015Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Hyong Bom Kim, Eun Jung Kang, Hyung Woo Park, Seong Dae Roh
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Patent number: 9056034Abstract: In an absorbent part of an absorbent product, super absorbent materials located between two sheets in an absorbent area swell by absorption of moisture of excrement, and spaces extending in a longitudinal direction from an opening, which is formed at a portion of upper absorbent layer facing the crotch region of a wearer, are formed between a non-absorbent area where the super absorbent materials do not exist and the upper absorbent layer and between the non-absorbent area and a lower absorbent layer. In the absorbent product, through the spaces, moisture of excrement in the second excretion and later can be quickly diffused over a wide area along the longitudinal direction of the absorbent part, and the moisture of excrement can be absorbed in a wide area of the absorbent part. As a result, it is possible to maintain high absorbing ability in multiple excretions in the absorbent product.Type: GrantFiled: November 15, 2010Date of Patent: June 16, 2015Assignee: LIVEDO CORPORATIONInventor: Ikuo Akiyama
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Patent number: 9024107Abstract: An absorbent and impermeable seat insert that includes a front edge, a rear edge, and a pair of side edges, each of a pair of side walls erectable along each of the pair of side edges and a rear wall erectable along the rear edge, said seat insert having an impermeable bottom layer disposed underlying an absorbent cardboard layer, and a gelling layer disposed to absorb and retain fluids introduced into the seat insert, wherein a dry weave disposed atop the gelling layer wicks fluids introduced onto the seat insert into the gelling and cardboard layers, where said fluid is retained and prevented from transmission through to an underlying seat by means of the impermeable layer, whereby a particular seat is protected from the inadvertent release of bodily fluids by an incontinent individual or by a child during potty training.Type: GrantFiled: April 4, 2013Date of Patent: May 5, 2015Inventor: Tonya D. Pero
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Patent number: 9000252Abstract: A wound dressing comprises: (i) a core of a non-woven layer comprising gelling fibres and having first and second major faces, (ii) a first layer of an absorbent foam positioned with one face adjacent to the first face of the non-woven layer, (iii) a second layer of an absorbent foam positioned with one face thereof adjacent to the second face of the non-woven layer, (iv) an open material positioned against that face of the first absorbent foam layer remote from the non-woven layer; and (v) an open material or a continuous semi-permeable film positioned against that face of the second absorbent layer remote from the non-woven layer. Layers (i)-(v) may be bonded together.Type: GrantFiled: May 3, 2013Date of Patent: April 7, 2015Assignee: Advanced Medical Solutions LimitedInventors: Colin Bradford, Brian John Hamerslag
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Publication number: 20150093575Abstract: The present invention further relates to a particulate superabsorbent polymer composition comprising a crosslinker composition that is the reaction product selected from (i) saturated amines and/or saturated polyamines with ethylenically unsaturated glycidyl compounds and/or ethylenically unsaturated polyglycidyl compounds, (ii) ethylenically unsaturated amines and/or ethylenically unsaturated polyamines with saturated glycidyl compounds and/or saturated polyglycidyl compounds, or (iii) ethylenically unsaturated amines and/or ethylenically unsaturated polyamines with ethylenically unsaturated glycidyl compounds and/or ethylenically unsaturated polyglycidyl compounds; and a surface crosslinking agent applied to the particle surface. The present invention further relates to an absorbent article that includes such particulate superabsorbent polymer compositions.Type: ApplicationFiled: December 30, 2011Publication date: April 2, 2015Applicant: Evonik CorporationInventors: Matthias Naumann, Stanley A. McIntosh, Frank Schubert, Christoph Loick
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Publication number: 20150094672Abstract: The invention relates to a wound dressing which is particularly suited for therapeutically dressing wounds. Said wound dressing comprises at least one air permeable layer having a porous and/or foam-based structure, particularly in the form of a solid foam (“foam layer”), and at least one sorbent in the form of activated carbon.Type: ApplicationFiled: August 31, 2012Publication date: April 2, 2015Applicant: Blücher GmbHInventors: Hasso von Blücher, Raik Schönfeld, Frank Pallaske
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Patent number: 8986474Abstract: Methods related to forming superabsorbent composite core structures using superabsorbent materials, such as superabsorbent polymers (SAP). In one method superabsorbent material is sprayed simultaneously with an adhesive to form a superabsorbent layer adhered to a first flexible sheet of material. A second flexible sheet of material is applied to the superabsorbent layer to position the superabsorbent layer between the first and second flexible sheets of material. At least one of the first or second flexible sheets of material is liquid permeable to allow liquid to penetrate into the superabsorbent layer from outside the composite product.Type: GrantFiled: December 10, 2012Date of Patent: March 24, 2015Assignee: Nordson CorporationInventors: Hubert Kufner, Ernst Hering
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Patent number: 8969652Abstract: A sanitary napkin is disclosed as a form of disposable absorbent article. It has an absorbent core and a hydrophobic topsheet that has an upper side that is to be worn against a user's body. The topsheet is selected from a group of nonwoven topsheets and apertured film topsheets. A trace amount of a fibrous superabsorbent material, in the range of 0.30 and 3.5 grams of superabsorbent material per square meter, is provided in a fibrous matrix in a secondary topsheet that is in intimate contact with the lower side of the topsheet. The fibrous matrix is made by airlaying the superabsorbent material with cellulose and bi-component fiber onto a non-woven carrier.Type: GrantFiled: September 19, 2011Date of Patent: March 3, 2015Assignee: The Procter & Gamble CompanyInventors: Christopher Philip Bewick-Sonntag, Ronald Dean Cramer, James A. Hatton
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Patent number: 8969651Abstract: An absorbent core structure for disposable absorbent articles, having improved fluid handling properties.Type: GrantFiled: July 15, 2011Date of Patent: March 3, 2015Assignee: The Procter & Gamble CompanyInventors: Giovanni Carlucci, Andrea Peri, Maurizio Tamburro, Evelina Sara Toro
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Patent number: 8962910Abstract: A process for the preparation of superabsorbent polymer containing clay, the process including the steps of (I) polymerizing a polymerization mixture comprising: (a) one or more ethylenically unsaturated carboxyl-containing monomers, (b) one or more crosslinking agents, (c) optionally one or more comonomers copolymerizable with the carboxyl-containing monomer, (d) neutralizing agent to partially neutralize the polymer to from about 50% to about 99%, by weight, and (e) a polymerization medium, to form a crosslinked partially neutralized hydrogel, (II) admixing a clay with the crosslinked partially neutralized hydrogel to form partially neutralized superabsorbent polymer-clay hydrogel; (III) drying the crosslinked partially neutralized hydrogel at a temperature from about 190° C. to about 210° C. and for a time period of from about 15 minutes to about 120 minutes, and (IV) comminuting the dried partially neutralized superabsorbent polymer-clay hydrogel to particles.Type: GrantFiled: July 6, 2012Date of Patent: February 24, 2015Assignee: Evonik CorporationInventors: Michael M. Azad, Scott J. Smith, Mark Joy, Geoffrey Wyatt Blake, Michael S. Jarman
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Patent number: 8946502Abstract: A sanitary napkin structure, particularly for a slight incontinence, said sanitary napkin structure comprising a first substantially permeable sheet, a second substantially impermeable sheet and an absorbing pad enclosed between said first and second sheets, characterized in that said absorbing pad comprises an absorbing pad layer including a flexible cotton fiber and a superabsorbing polymer matrix, wherein the cotton fibers in said matrix have a random orientation along three axes and do not have a preferential orientation in a X-Y plane.Type: GrantFiled: September 28, 2010Date of Patent: February 3, 2015Assignee: Corman S.p.A.Inventors: Guido Conio, Giorgio Mantovani
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Patent number: 8920391Abstract: A container for use in a system for spray coating a human subject includes a container body configured to hold a skin coating composition. The container further includes a first end portion having a male coupling valve, where the male coupling valve is configured to couple to a female fitting disposed in a spraying apparatus, where the male coupling valve is further configured to prevent flow of the skin composition from the container while the male coupling valve is not coupled to the female fitting. The container further includes a second end portion opposite the first end portion and having a vent, where the container is configured for inverted connection to the spraying apparatus such that when the male coupling valve is connected to the female fitting the male coupling valve is at a location below the vent, and where opening of the vent allows airflow into the container as the skin coating composition flows out of the container through the male coupling valve.Type: GrantFiled: November 23, 2009Date of Patent: December 30, 2014Assignee: Sunless, Inc.Inventors: Scott Thomason, Nicholas J. Mastandrea
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Publication number: 20140378927Abstract: A nursing pad and nursing pad holder configured to be attached by a band to a bra strap. The pad and pad holder may be oriented over a nipple of a nursing mother, between the breast and bra cup, thereby absorbing any leaking milk before or after nursing.Type: ApplicationFiled: June 21, 2013Publication date: December 25, 2014Inventor: Mary Burket
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Publication number: 20140378928Abstract: The present invention provides a hemostatic composite sponge comprising a porous matrix of a biomaterial and a material enhancing the adherence of said sponge to the applied tissue stably associated with at least one surface of said sponge, a method of producing these sponges and their use in hemostasis.Type: ApplicationFiled: June 30, 2014Publication date: December 25, 2014Inventors: Hans Christian Hedrich, Joris Hoefinghoff, Woonza M. Rhee, Atsushi Edward Osawa
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Publication number: 20140350496Abstract: The invention relates to a set of wound care articles, comprising at least one first planar wound care article comprising hydroactive polymers and at least one second wound care article comprising hydroactive polymers, wherein the second and optionally also any additional wound care articles have a lower liquid retention and/or a lower liquid absorption capacity than the first wound care article.Type: ApplicationFiled: June 5, 2014Publication date: November 27, 2014Inventor: Birgit Riesinger
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Patent number: 8895799Abstract: Provided are an absorbent and an absorptive article containing the absorbent which has excellent water absorbability and leakage prevention ability, and has an intent to achieve reductions in the weight and thickness of an absorptive article. The absorbent comprises a polysaccharide that causes a gelation reaction in the presence of a polyvalent metal ion and a source of the polyvalent ion, in which the polyvalent ion is supplied simultaneously with or after dissolution and swelling of the polysaccharide. The absorptive article containing the absorbent can achieve excellent water absorbability and leakage prevention ability and thus reductions in the weight and thickness as the absorptive article.Type: GrantFiled: March 26, 2009Date of Patent: November 25, 2014Assignee: Uni-Charm CorporationInventors: Hisashi Takai, Takayoshi Konishi, Masashi Nakashita
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Patent number: 8883881Abstract: The invention relates to absorptive, crosslinked polymers which are based on partly neutralized, monoethylenically unsaturated monomers carrying acid groups wherein the absorptive crosslinked polymer may be coated with a thermoplastic polymer, and have improved properties, in particular in respect of their capacity for transportation of liquids in the swollen state, and which has a high gel bed permeability and high centrifuge retention capacity.Type: GrantFiled: July 11, 2013Date of Patent: November 11, 2014Assignee: Evonik CorporationInventors: Scott J. Smith, Stan McIntosh, Heinz Bremus, Frank Loeker
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Patent number: 8877169Abstract: A method of preparing hydrogel structure, wherein the hydrogel structure comprises: (a) a one way penetrating polyurethane film layer, (b) a hydrophobic pressure sensitive adhesive layer, (c) a multi-directional elastic meltblown nonwoven, (d) an interpenetrating polymer network, and (e) a hydrophilic hydrogel; and the method comprises: (i) coating the hydrogel in a form of solution on the meltblown non-woven to form a product 1, (ii) UV curing the product 1 in step (i), forming a composite comprising a hydrogel layer on the top, an interpenetrating polymer network in the middle, and a meltblown non-woven layer on the bottom, wherein the interpenetrating polymer network is a mixture of the hydrogel and the meltblown non-woven, (iii) providing polyurethane film layer coated with pressure sensitive adhesive layer, and (iv) laminating part of exposed fibers of meltblown non-woven with the pressure sensitive adhesive layer, forming a hydrogel structure.Type: GrantFiled: May 2, 2012Date of Patent: November 4, 2014Assignee: Compose Element LimitedInventor: Tsu-Tai Lin
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Publication number: 20140323999Abstract: A wound dressing for use in vacuum wound therapy comprising a wound contact layer which is an open structure comprising a yarn comprising gel-forming filaments or fibres, the structure having a porosity which allows exudate to flow through it.Type: ApplicationFiled: November 29, 2012Publication date: October 30, 2014Inventors: Wayne Bonnefin, Sarah Wroe, Amelia Prentice
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Publication number: 20140309574Abstract: Wound dressings, methods for their production and components for use therein. A knitted structure comprising a blend of gelling fibres and non-gelling fibres wherein the yarn comprises at least 50% w/w gelling fibres, a three-dimensional textile material comprising gelling fibres, and a yarn comprising a blend of gelling and non-gelling fibres which may be used in their production, the knitted structure and three-dimensional textile material beings suitable for use as wound dressings or as components of composite wound dressings. The wound dressings may be adapted for use in negative pressure wound therapy (NPWT). It has been found that the incorporation of gel-forming fibres provides a material which has a high absorbency, enabling good transfer of exudates away from a wound, which retains structural integrity, and which is non-adherent and easily removed from the wound.Type: ApplicationFiled: November 1, 2012Publication date: October 16, 2014Inventor: Stephen Cotton
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Patent number: 8834434Abstract: A surgical tissue therapy device includes a sealant layer and a collection chamber. The sealant layer functions so as to create a sealed enclosure or space between it and the surface of a patient by forming, preferably, an airtight seal around a surgical area of skin trauma. The closed incision tissue therapy device also comprises a collection chamber, which may comprise an elongate tubular chamber with a plurality of longitudinally spaced openings. The collection chamber may be configured to be in fluid communication with the sealant layer and the area of skin trauma and functions as to distribute the negative pressure applied to a surgically closed area of skin trauma. Preferably, the pressure under the sealant layer is reduced by expanding the volume of the enclosure space and thereby decreasing the density of air molecules under the sealant layer.Type: GrantFiled: October 18, 2013Date of Patent: September 16, 2014Assignee: Spiracur Inc.Inventors: Dean Hu, Moshe Pinto, Kenton Fong, Akshay Mavani, Kenneth Wu