Compositions For Use In Tape Adhesives, Binder Or Impregnate For A Body Fluid Adsorbent Device, E.g., A Surgical Adhesive Tape, Etc. Patents (Class 523/111)
  • Patent number: 8324292
    Abstract: A medically acceptable formulation comprising a diisocyanate terminated macromer or mixture thereof, and an oxidized cellulose.
    Type: Grant
    Filed: February 29, 2008
    Date of Patent: December 4, 2012
    Assignee: Ethicon, Inc.
    Inventors: Robert B. Vetrecin, Elizabeth Vailhe, Robert W. Van Holten
  • Publication number: 20120283615
    Abstract: Pressure sensitive adhesives for use primarily in medical applications are disclosed. The pressure sensitive adhesives are urethane elastomeric adhesives that include a polyurethane polymer and a compatible tackifier and/or compatible plasticizer to achieve an adhesive having a predetermined compliance. The result is a pressure sensitive adhesive for application to skin that can eventually be removed with very little trauma to the skin and with a low pain rating, but which still exhibits very good peel strength when used to construct an article in which the adhesive is adhered to human skin.
    Type: Application
    Filed: April 30, 2012
    Publication date: November 8, 2012
    Applicant: ADHESIVES RESEARCH, INC.
    Inventors: Ranjit MALIK, Kevin MCKINNEY
  • Patent number: 8293838
    Abstract: A stable and sterile adhesive composition with a controlled level of high viscosity is disclosed in the present invention. Adhesive compositions with different ranges of viscosity could be prepared by heating the adhesive monomer composition at mild temperature in the presence of pluronic polymer. The viscosity of the adhesive composition is able to be controlled to any desired level. A method of stabilizing the adhesive composition with a desired level of high viscosity is provided by using the combination of free radical and acid stabilizers. Methods for packaging, sterilizing and applying the adhesive in the medical field are also provided.
    Type: Grant
    Filed: June 20, 2008
    Date of Patent: October 23, 2012
    Assignee: Adhezion Biomedical, LLC
    Inventors: Sheng Zhang, Rafael Ruiz
  • Patent number: 8273405
    Abstract: An adhesive composition is provided that is water-insoluble yet water-absorbent, i.e., capable of absorbing up to 15 wt. % water or more. The composition in composed of a film-forming hydrophilic polymer with at least one linear segment having a plurality of recurring polar groups along the polymer backbone, a complementary multifunctional polymer with a plurality of recurring functional groups that noncovalently bind to the polar groups on the film-forming polymer, and plasticizer. A method for manufacturing the adhesive composition is provided as well.
    Type: Grant
    Filed: October 7, 2011
    Date of Patent: September 25, 2012
    Assignees: A.V. Topcheiv Institute of Petrochemical Synthesis, Russian Academy of Sciences, Corium International, Inc.
    Inventors: Mikhail M. Feldstein, Danir F. Bairamov, Mikhail Borisovich Novikov, Valery G. Kulichikhin, Nicolai A. Platé, Gary W. Cleary, Parminder Singh
  • Patent number: 8263681
    Abstract: The invention features a dental composition containing a polycyclic aromatic compound, such as 2-ethyl 9,10-dimethoxy anthracene (EDMOA), in an amount that provides the composition with fluorescence mimicking that of natural teeth.
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: September 11, 2012
    Assignee: 3M Innovative Properties Company
    Inventors: Bradley D. Craig, Gregory A. Kobussen
  • Patent number: 8263680
    Abstract: Acrylic polymers comprising vinyl acetate monomers, hydroxyl functional monomers and low Tg alkyl acrylate monomers are useful in adhesive compositions that find use in skin contact applications.
    Type: Grant
    Filed: September 22, 2006
    Date of Patent: September 11, 2012
    Assignee: Henkel AG & Co. KGaA
    Inventors: Allison Luciano, Eric N. Silverberg, Paul B. Foreman, Jianye Wen, Eli J. Goldman, Jay Audette
  • Patent number: 8263720
    Abstract: Combinations of solubilized, covalently crosslinked, siloxy-containing polymers in a solvent system of a volatile hydrophobic (non-polar) liquid that is non-stinging to a user are excellent non-irritating liquid coating materials for forming films, which, after solvent evaporation, are water insoluble but water-vapor permeable and lightly adherent to surfaces such as skin and mucous membranes. The crosslinking content is greater than 1 weight % and can be as much as 16 weight %. In comparison to non-crosslinked polysiloxy films, or crosslinked films of 1 weight % or less, the enhanced crosslinked polysiloxy films, while continuing to be soluble in the solvent, have reduced tack and reduced adhesion to skin and can act as sacrificial coatings under strongly adherent pressure sensitive adhesives.
    Type: Grant
    Filed: October 5, 2011
    Date of Patent: September 11, 2012
    Assignee: Rochal Industries, LLP
    Inventors: Joseph Salamone, Ann Beal Salamone, Xiang Yu, Levi J. Irwin
  • Patent number: 8236715
    Abstract: The present invention relates to an absorbent structure suitable in, or being an adult or infant diaper or feminine hygiene article, comprising a water-absorbing material comprising water-absorbing particles that comprise a film coating, comprising an elastic film-forming polymer and a coalescing agent. The invention also relates to an absorbent structure comprising a water absorbent material obtainable by a process of: a) spray-coating water-absorbing polymeric particles with an elastic film-forming polymer in a fluidized bed reactor at a temperature in the range from 0° C. to 150° C. and b) heat-treatment of the coated polymeric particles at a temperature above 50° C., wherein in step a) and/or b) a coalescing agent is added.
    Type: Grant
    Filed: August 3, 2007
    Date of Patent: August 7, 2012
    Assignee: The Procter & Gamble Company
    Inventors: Mattias Schmidt, Axel Meyer, Renae Dianna Fossum, Jean-Philippe Marie Autran, Ulrich Riegel, Thomas Daniel, Stefan Bruhns, Mark Elliott, Karl Haeberle
  • Patent number: 8198344
    Abstract: The present invention relates to compositions of cyanoacrylate monomer, a method of improving the viscosity and the curing speed with a single additive and a process of providing sterilized cyanoacrylate adhesive compositions for application in the medical field.
    Type: Grant
    Filed: June 20, 2008
    Date of Patent: June 12, 2012
    Assignee: Adhezion Biomedical, LLC
    Inventors: Sheng Zhang, Rafael Ruiz
  • Patent number: 8183428
    Abstract: Devices, bandages, kits and methods are described that can control or regulate the mechanical environment of a wound to ameliorate scar and/or keloid formation. The mechanical environment of a wound includes stress, strain, and any combination of stress and strain. The control of a wound's mechanical environment can be active, passive, dynamic, or static. The devices are configured to be removably secured to a skin surface in proximity to the wound site and shield the wound from endogenous and/or exogenous stress.
    Type: Grant
    Filed: January 22, 2009
    Date of Patent: May 22, 2012
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Geoffrey C. Gurtner, Reinhold H. Dauskardt, Michael T. Longaker, Paul Yock
  • Patent number: 8168850
    Abstract: Devices, bandages, kits and methods are described that can control or regulate the mechanical environment of a wound to ameliorate scar and/or keloid formation. The mechanical environment of a wound includes stress, strain, and any combination of stress and strain. The control of a wound's mechanical environment can be active, passive, dynamic, or static. The devices are configured to be removably secured to a skin surface in proximity to the wound site and shield the wound from endogenous and/or exogenous stress.
    Type: Grant
    Filed: January 22, 2009
    Date of Patent: May 1, 2012
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Geoffrey C. Gurtner, Reinhold H. Dauskardt, Michael T. Longaker, Paul Yock
  • Patent number: 8142382
    Abstract: A material having a stretch axis and adapted to regulate energy by distributing and partially dissipating energy exerted thereon. The material includes a material body elongateable along the stretch axis from a first position to a second position, in which the material body is elongated by a predetermined amount relative to the first position. The material body includes a first elastomer layer defining a material length and a planar support structure disposed within the elastomer layer generally along the stretch axis in an at least partially non linear fashion while the material body is in the first position so that a length of the support structure, as measured along a surface thereof, is greater than the material length of the first elastomer layer.
    Type: Grant
    Filed: October 5, 2004
    Date of Patent: March 27, 2012
    Assignee: Matscitechno Licensing Company
    Inventors: Robert A. Vito, Carmen N. DiMario, Thomas Falone
  • Patent number: 8128946
    Abstract: A medical tape preparation which comprises a support and, superposed on one side thereof in the following order, a pressure-sensitive adhesive layer and a release liner. The pressure-sensitive adhesive layer can contain a large amount of an oleophilic oily matter. The tape preparation is excellent in adhesion, cohesiveness, and stability even when no crosslinking agent is used. The pressure-sensitive adhesive layer in the medical tape preparation comprises a blend of two tacky polymers, which are a tacky polymer (A) comprising a copolymer obtained from 2-acetoacetoxyethyl methacrylate and other vinyl monomer(s) as constituent ingredients and a tacky polymer (B) comprising a copolymer which is obtained from a C4-10-alkyl(meth)acrylate and other vinyl monomer(s) as constituent ingredients and is different from the tacky polymer (A).
    Type: Grant
    Filed: June 6, 2011
    Date of Patent: March 6, 2012
    Assignee: Nipro Patch Co., Ltd.
    Inventors: Naohisa Kawamura, Hidenori Sawada, Takayuki Kobayashi
  • Patent number: 8129445
    Abstract: The invention relates to a novel poly(ethylene oxide)imine; a novel amine reactive moiety; a novel moisture activated latent curing adhesive or sealant mixture comprising (1) a ketimine or aldimine, and (2) an amine reactive moiety; and a novel moisture activated latent curing adhesive or sealant comprising the reaction product of (1) and (2).
    Type: Grant
    Filed: August 9, 2006
    Date of Patent: March 6, 2012
    Assignee: Ethicon, Inc.
    Inventors: Joseph Zavatsky, Binoy K. Bordoloi
  • Patent number: 8115048
    Abstract: Devices, bandages, kits and methods are described that can control or regulate the mechanical environment of a wound to ameliorate scar and/or keloid formation. The mechanical environment of a wound includes stress, strain, and any combination of stress and strain. The control of a wound's mechanical environment can be active, passive, dynamic, or static. The devices are configured to be removably secured to a skin surface in proximity to the wound site and shield the wound from endogenous and/or exogenous stress.
    Type: Grant
    Filed: January 22, 2009
    Date of Patent: February 14, 2012
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Geoffrey C. Gurtner, Reinhold H. Dauskardt, Michael T. Longaker, Paul Yock
  • Publication number: 20120016328
    Abstract: A film that is biodegradable in that it loses its integrity over time is provided. The biodegradable film includes from about 1 wt. % to about 49 wt. % by weight of the film of a matrix phase including at least one biodegradable polyester, and from about 46 wt. % to about 75 wt. % by weight of the film of a dispersed phase comprising at least one oxidized starch and at least one plasticizer, wherein the dispersed phase is dispersed in the matrix phase, and further wherein the wt. % by weight of the film of the matrix phase is less than the wt. % by weight of the film of the dispersed phase. The desired 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: Application
    Filed: July 19, 2010
    Publication date: January 19, 2012
    Inventors: Bo Shi, James H. Wang
  • Patent number: 8088965
    Abstract: Methods accelerate healing of a wound by applying a multilayer bandage to the wound. The multilayer bandage has a spun-bonded webbing comprising at least one partially or completely hydrolytically condensed silicon compound and a water-impervious or semi-permeable first membrane having at least one water-insoluble polymer. The webbing has a biologically degradable or biologically resorbable structure and is brought into direct contact with the wound by placing the webbing in or on the wound.
    Type: Grant
    Filed: October 1, 2009
    Date of Patent: January 3, 2012
    Assignee: Bayer Innovation GmbH
    Inventors: Axel Thierauf, Iwer Baecker, Andreas Haisch
  • Patent number: 8080593
    Abstract: The present invention relates to thermoresponsive adhesives. The invention further relates to methods for the reversible attachment of retinal implants, other implants, and drug delivery devices.
    Type: Grant
    Filed: November 29, 2007
    Date of Patent: December 20, 2011
    Assignee: University of Southern California
    Inventors: Mark Humayun, Buddy R. Ratner, James Weiland, Murat Tunc, Xuanhong Cheng
  • Publication number: 20110306677
    Abstract: A pressure sensitive adhesive composition comprising, as a rubber component solid at ordinary temperature, from 10% by mass or more to less than 50% by mass of polyisoprene, from more than 50% by mass to 90% by mass or less of a styrene-isoprene-styrene block copolymer and 0 to 30% by mass of polyisobutylene, and further comprising, per 100 parts by mass of the solid rubber component, 1 to 30 parts by mass of polyisobutylene liquid at ordinary temperature, 50 to 120 parts by mass of a tackifier, and 1 to 40 parts by mass of a plasticizer liquid at ordinary temperature; and a pressure sensitive adhesive tape comprising a base material and the above-described pressure sensitive adhesive composition provided on the base material.
    Type: Application
    Filed: February 15, 2010
    Publication date: December 15, 2011
    Inventor: Hiroshi Kataoka
  • Patent number: 8071663
    Abstract: The present invention is directed to a medically acceptable formulation comprising a diisocyanate terminated macromer or mixture thereof, and bio-absorbable desiccant comprising a hygroscopic and/or hydrophilic or combination thereof. The present invention is also directed to methods of use for such formulations for medical procedures.
    Type: Grant
    Filed: March 31, 2009
    Date of Patent: December 6, 2011
    Assignee: Ethicon, Inc.
    Inventors: Benjamin D. Fitz, Elizabeth Vailhe, Joseph Zavatsky, Christopher M. Westergom
  • Patent number: 8067031
    Abstract: Crosslinkable compositions are provided that readily crosslink in situ to provide crosslinked biomaterials. The composition contains at least two biocompatible, non-immunogenic components having reactive groups thereon, with the functional groups selected so as to enable inter-reaction between the components, i.e., crosslinking. In one embodiment, a first component has nucleophilic groups and a second component has electrophilic groups. Additional components may have nucleophilic or electrophilic groups. Methods for preparing and using the compositions are also provided as are kits for delivery of the compositions. Exemplary uses for the crosslinked compositions include tissue augmentation, biologically active agent delivery, bioadhesion, and prevention of adhesions following surgery or injury.
    Type: Grant
    Filed: April 28, 2005
    Date of Patent: November 29, 2011
    Assignee: AngioDevice International GmbH
    Inventors: George Y. Daniloff, Louis C. Sehl, Olof Mikael Trollsas, Jacqueline Schroeder, David M. Gravett, Philip M. Toleikis
  • Patent number: 8063265
    Abstract: A hydrogel having a floatability where from 40% to 90% of a solution and/or suspension to be thickened are thickened starting from the surface of the liquid and the rest of the solution and/or suspension to be thickened is thickened starting from the bottom of the container, a process for preparing the hydrogel and also its use for absorbing blood and/or body fluids, especially in hygiene articles, or for thickening aqueous solutions and/or suspensions, especially for thickening medical wastes.
    Type: Grant
    Filed: October 28, 2004
    Date of Patent: November 22, 2011
    Assignee: BASF Aktiengesellschaft
    Inventors: Martin Beck, Volker Frenz, Anna Kowalski, Elisabeth Selzer, Ernst Jürgen Bauer, Harald Keller, Bernhard Steinmetz
  • Patent number: 8063263
    Abstract: Devices, bandages, kits and methods are described that can control or regulate the mechanical environment of a wound to ameliorate scar and/or keloid formation. The mechanical environment of a wound includes stress, strain, and any combination of stress and strain. The control of a wound's mechanical environment can be active, passive, dynamic, or static. The devices are configured to be removably secured to a skin surface in proximity to the wound site and shield the wound from endogenous and/or exogenous stress.
    Type: Grant
    Filed: January 22, 2009
    Date of Patent: November 22, 2011
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Geoffrey C. Gurtner, Reinhold H. Dauskardt, Michael T. Longaker, Paul Yock
  • Patent number: 8044157
    Abstract: A method for producing a water absorbent resin comprises the steps of: (i) polymerizing a monomer including an unsaturated monomer containing a carboxyl group, in the presence of an internal cross-linking agent (A) having two or more radical polymerizable unsaturated groups in its single molecule and in the presence of a non-polymeric internal cross-linking agent (B) having in its single molecule two or more functional groups each of which allows formation of an ester bond or an amide bond by reacting with a carboxyl group so as to obtain a cross-linked polymer hydrogel; (ii) crushing the cross-linked polymer hydrogel obtained in the step (i); and (iii) drying crushed cross-linked polymer hydrogel products obtained in the step (ii), wherein: an amount of the internal cross-linking agent (A) is 0.01 mol % or more and 0.
    Type: Grant
    Filed: March 14, 2008
    Date of Patent: October 25, 2011
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Kazushi Torii, Taishi Kobayashi
  • Publication number: 20110236440
    Abstract: A medical tape preparation which comprises a support and, superposed on one side thereof in the following order, a pressure-sensitive adhesive layer and a release liner. The pressure-sensitive adhesive layer can contain a large amount of an oleophilic oily matter. The tape preparation is excellent in adhesion, cohesiveness, and stability even when no crosslinking agent is used. The pressure-sensitive adhesive layer in the medical tape preparation comprises a blend of two tacky polymers, which are a tacky polymer (A) comprising a copolymer obtained from 2-acetoacetoxyethyl methacrylate and other vinyl monomer(s) as constituent ingredients and a tacky polymer (B) comprising a copolymer which is obtained from a C4-10-alkyl (meth)acrylate and other vinyl monomer(s) as constituent ingredients and is different from the tacky polymer (A).
    Type: Application
    Filed: June 6, 2011
    Publication date: September 29, 2011
    Inventors: Naohisa Kawamura, Hidenori Sawada, Takayuki Kobayashi
  • Patent number: 7994242
    Abstract: The present invention relates to a material for acquisition of liquids comprising individualized, crosslinked cellulosic fibers having an effective amount of a polymeric acid crosslinking agent reacted with the fibers in intra-fiber crosslink ester bond form. The material further comprises at least one basic substance, selected from basic polymers. The invention also relates to disposable absorbent articles, such as diapers, containing this material. The material can be used in a method of reducing the electrolyte concentration of aqueous mediums containing electrolytes, such as urine.
    Type: Grant
    Filed: April 2, 2008
    Date of Patent: August 9, 2011
    Assignee: The Procter & Gamble Company
    Inventors: Andreas Flohr, Marion Lutsche
  • Patent number: 7960602
    Abstract: The present invention provides a multilayer bandage, having a webbing for contacting a wound and a first membrane that has at least one water-insoluble polymer and is water-impervious. The present invention further provides methods for making the multilayer bandage, methods of using the multilayer bandage for accelerated wound healing, and kits having compositions of the present invention.
    Type: Grant
    Filed: December 30, 2005
    Date of Patent: June 14, 2011
    Assignee: Bayer Innovation GmbH
    Inventors: Axel Thierauf, Iwer Baecker, Andreas Haisch
  • Patent number: 7951304
    Abstract: A process for producing water-absorbing polymer particles by polymerizing droplets of a monomer solution in a gas phase surrounding the droplets and postcrosslinking the polymer particles, wherein the postcrosslinked polymer particles are at least partly coated.
    Type: Grant
    Filed: December 12, 2007
    Date of Patent: May 31, 2011
    Assignee: BASF SE
    Inventors: Uwe Stueven, Rüdiger Funk, Matthias Weismantel, Wilfried Heide, Marco Krüger
  • Patent number: 7947758
    Abstract: The invention relates to a novel poly(ethylene oxide)imine; a novel amine reactive moiety; a novel moisture activated latent curing adhesive or sealant mixture comprising (1) a ketimine or aldimine, and (2) an amine reactive moiety; and a novel moisture activated latent curing adhesive or sealant comprising the reaction product of (1) and (2).
    Type: Grant
    Filed: August 9, 2006
    Date of Patent: May 24, 2011
    Assignee: Ethicon, Inc.
    Inventors: Chetan Anirudh Khatri, Joseph Zavatsky, Binoy K. Bordoloi
  • Publication number: 20110118363
    Abstract: The present invention relates to an adhesive composition applicable to skin comprising: (i) a polar oil or fat including (a) at least one triglyceride and/or (b) at least one fatty acid of the formula R—CO2H, wherein R is a C3 to C30 alkyl group; and (ii) at least one homopolymer, and/or copolymer. This invention also relates to a medical adhesive device including such adhesive composition.
    Type: Application
    Filed: October 8, 2010
    Publication date: May 19, 2011
    Applicant: EuroMed Inc.
    Inventors: Jarl Jensen, Ravi Ramjit, Ta Kang Keng
  • Patent number: 7943812
    Abstract: A layered adhesive construct is provided having a backing layer, a first layer of a hydrocolloid adhesive, and a second layer of a hydrocolloid adhesive, where the first and second layers of hydrocolloid adhesives have different composition, and the second layer of hydrocolloid adhesive is interposed between the first layer of hydrocolloid adhesive and the backing layer. The first adhesive layer is a layer of moldable adhesive paste including hydrocolloids having a Strain Recovery below 45% and the second adhesive layer is a layer of hydrocolloid adhesive having a Strain Recovery above 55%.
    Type: Grant
    Filed: December 18, 2006
    Date of Patent: May 17, 2011
    Assignee: Colopast A/S
    Inventors: Esben Stroebeck, Flemming Moss, Danuta Ciok
  • Patent number: 7923003
    Abstract: The invention relates to a kit comprising the following individual components: (a) polymers comprising at least one free amino group, (b) bridge molecules selected from the group consisting of monocyclic ortho-dihydroxyaromates, mono-cyclic para-dihydroxyaromates, bicyclic monohydrxyaromates, polycyclic monohydroxyaromates, bicyclic dihydroxyaromates, polycyclic dihydroxyaromates, bicyclic trihydroxyaromates, polycyclic trihydroxyaromates, and mixtures thereof, and (c) polyphenoloxidases, in particular, lignolytic polyphenoloxidases, whereby the individual components b) and c) are not in contact.
    Type: Grant
    Filed: February 9, 2007
    Date of Patent: April 12, 2011
    Assignee: Stryker Trauma GmbH
    Inventors: Andreas Werner Speitling, Philip Procter, Joachim Schomburg, Christian Schultz, Wolf Dieter Jülich, Ulrike Lindequist, Frieder Schauer, Annett Mikolasch, Katrin Manda
  • Patent number: 7872076
    Abstract: An object of the present invention is to provide a particulate water-absorbent resin composition and its production process, wherein the particulate water-absorbent resin composition is an enhanced one in both of the “liquid permeability” and “liquid-sucking-up property” (which have hitherto been antithetical physical properties) of the water-absorbent resin. As a means of achieving this object, a first particulate water-absorbent resin composition according to the present invention is a particulate water-absorbent resin composition comprising a water-absorbent resin (A) of a crosslinked structure obtained by polymerizing an acid-group-containing unsaturated monomer, with the composition being characterized by: having a particle size such that particles in the range of 850 to 150 ?m (but not including 850 ?m) account for not less than 90 weight % of the entirety; and containing a tetra- or more functional polyol (B) at least on surfaces.
    Type: Grant
    Filed: November 5, 2004
    Date of Patent: January 18, 2011
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Hiroyuki Ikeuchi, Kazushi Torii, Taku Iwamura, Sayaka Machida, Hiroko Okochi
  • Publication number: 20110009841
    Abstract: The invention relates to absorptive, crosslinked polymeric compositions that are based on partly neutralized, monoethylenically unsaturated monomer carrying acid groups wherein the absorptive, crosslinked polymeric composition further includes an antioxidant and is color stable.
    Type: Application
    Filed: September 17, 2010
    Publication date: January 13, 2011
    Inventors: Iqbal Ahmed, Mirko Walden, Brian King, Scott J. Smith, Harald Schmidt
  • Patent number: 7858836
    Abstract: An adhesive composition including an adhesive component and an enzyme inhibiting component for use in ostomy and wound care applications. The enzyme inhibitors are derived from tubers, such as potatoes. In ostomy, the adhesive composition helps to secure the collection bag or pouch to the skin. In wound care application, the adhesive composition secures the wound dressing to the skin. The adhesive composition also may be used to couple two or more ostomy or wound care components together.
    Type: Grant
    Filed: November 29, 2005
    Date of Patent: December 28, 2010
    Assignee: ConvaTec Technologies Inc.
    Inventor: Mahesh Sambasivam
  • Patent number: 7834065
    Abstract: Medical-use two-part adhesive comprising; first part comprised of an aqueous solution or a powder of aldehyde-groups-introduced alpha-glucan; and second part comprised of an aqueous solution or a powder of amino-groups-containing polymer that is formed of a polymer chain of amino-group-containing units and has a molecular weight in a range of 1000 to 20,000; as well as medical-use hydrogel resin obtained by curing the adhesive. A mixture of the first and second parts, at a time of mixing them to form the hydrogel has pH in a range of 5.0 to 8.0. In a preferred embodiment, the amino-groups-containing polymer is epsilon-poly-L-lysine produced by microorganism or by enzyme.
    Type: Grant
    Filed: July 30, 2007
    Date of Patent: November 16, 2010
    Assignee: BMG Incorporated
    Inventors: Naoki Nakajima, Hajime Sugai, Masakazu Konda, Suong-Hyu Hyon
  • Publication number: 20100286642
    Abstract: Disclosed herein is a new use for water-stable, oil-modified, nonreactive alkyd resins. It has now been found that such resins can be used as the predominant component of a construction adhesive employed in the manufacture of disposable absorbent articles, for example. As such, the construction adhesive need not employ plasticizers, tackifiers, and conventional polymers required by hot-melt adhesives typically used as construction adhesives. Furthermore, in the manufacture of disposable absorbent articles, the construction adhesive containing a water-stable, oil-modified, nonreactive, alkyd resin does not need to be processed or applied at the high temperatures required of construction adhesives containing reactive alkyds.
    Type: Application
    Filed: May 11, 2009
    Publication date: November 11, 2010
    Inventors: William Maxwell Allen, JR., Isao Noda, Wolfgang Edgar Huhn
  • Patent number: 7816412
    Abstract: Electrically conductive adhesive hydrogels formed from a composition which generally includes a monomer, an initiator, an organic solvent, and a cross-linking agent are suitable for use as skin contact adhesives and, particularly, suitable for use as an electrical interface for disposable medical devices. The present hydrogels provide for reduced skin irritation and/or malodor properties, hydrate a subject's skin, readily wet around a subject's skin surface hair, and protect against burning of a subject upon or due to electrical stimulation through the hydrogel.
    Type: Grant
    Filed: February 23, 2007
    Date of Patent: October 19, 2010
    Assignee: ConMed Corporation
    Inventors: Ali Yahiaoui, Anthony Stephen Spencer, Charles Bolian
  • Patent number: 7803880
    Abstract: An object of the present invention is to provide a water absorbent having excellent gel properties and showing excellent properties when used in a water-absorbing material of a sanitary/hygienic material such as paper diaper. Moreover, another object of the present invention is to provide a water absorbent which is safe and excellent in liquid permeability, and in which an amount of liquid permeability improver for improving the liquid permeability is reduced. The water absorbent is made from a water-absorbing resin prepared by a specific polymerization method and having a high degree of cross-linking, a high liquid holding property and a high gel strength (its swelling pressure of gel layer of is 35 kdyne/cm2 or more). This water absorbent is further processed to have a particular particle size distribution (95 wt % or more of its particles are less than 850ƒÊm but not less than 106ƒÊm, and logarithmic standard deviation (ƒĐƒÄ) is in a range of 0.25 to 0.
    Type: Grant
    Filed: September 17, 2004
    Date of Patent: September 28, 2010
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Kazushi Torii, Hirofumi Shibata, Taku Iwamura, Yoshio Irie, Yorimichi Dairoku, Yoshiro Mitsukami, Sayaka Machida
  • Publication number: 20100234233
    Abstract: The invention relates to a method for the preparation of a polymer hydrogel, comprising cross-linking a precursor comprising a hydrophilic polymer optionally in combination with a second hydrophilic polymer, using a polycarboxylic acid as the cross-linking agent. The invention further concerns the polymer hydrogel obtainable by the method of the invention and the use thereof in a number of different applications.
    Type: Application
    Filed: February 10, 2010
    Publication date: September 16, 2010
    Inventors: Alessandro Sannino, Luigi Ambrosio, Luigi Nicolais
  • Patent number: 7786032
    Abstract: The present invention is generally directed to adhesive compositions comprising selected ratios of crystalline and amorphous polymers. In some versions of the invention, polymers capable of existing in different configurations (e.g., a polymer such as polypropylene which can exist in an atactic, syndiotactic. or isotactic configuration) is used to prepare adhesives of the present invention. As an example, a selected amount of isotactic polypropylene is blended with a selected amount of atactic polypropylene to prepare an adhesive composition having one or more performance properties (e.g., bond strength) that are superior to the performance properties of a conventional hot-melt adhesive.
    Type: Grant
    Filed: September 16, 2008
    Date of Patent: August 31, 2010
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Peiguang Zhou, Timothy James Blenke
  • Patent number: 7776940
    Abstract: Hardenable and hardened dental compositions, and articles including such hardenable and hardened compositions, are provided. In some embodiments, the hardenable dental compositions include an acid-generating component and an acid-reactive component including one or more acid-reactive groups. Upon irradiating, and optionally heating, the hardened compositions are useful, for example, for reducing the bond strength of orthodontic appliances adhered to tooth structures with the hardened compositions.
    Type: Grant
    Filed: December 20, 2005
    Date of Patent: August 17, 2010
    Assignee: 3M Innovative Properties Company
    Inventors: Rajdeep S. Kalgutkar, Joan V. Brennan, Babu N. Gaddam
  • Patent number: 7754782
    Abstract: The present invention relates to novel, rapidly curing adhesives based on hydrophilic polyisocyanate prepolymers for use in surgery.
    Type: Grant
    Filed: June 30, 2008
    Date of Patent: July 13, 2010
    Assignee: Bayer Material Science AG
    Inventors: Heike Heckroth, Burkhard Köhler, Sebastian Dörr
  • Patent number: 7750073
    Abstract: Compositions and methods for the formation of physically cross-linked thermoplastic elastomeric films are disclosed. The disclosed films are long-lasting, flexible, transfer resistant, and water-proof. The film-forming compositions comprise a thermoplastic elastomer, a tackifier resin, and a volatile solvent useful for formulating cosmetics, personal care products, and pharmaceutical compositions.
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: July 6, 2010
    Assignee: Avon Products, Inc.
    Inventors: John C. Brahms, Prithwiraj Maitra, Tao Zheng, David A. Binder
  • Patent number: 7727586
    Abstract: A process for producing water-absorbing polymeric particles by dropletization polymerization in the gas phase, which comprises drying the polymeric particles after the polymerization in a fluidized bed, the water-absorbing polymeric particles themselves, hygiene articles comprising these water-absorbing polymeric particles and also apparatus for implementing the process.
    Type: Grant
    Filed: January 24, 2006
    Date of Patent: June 1, 2010
    Assignee: BASF Aktiengesellschaft
    Inventors: Stefan Bruhns, Volker Frenz, Dennis Lösch, Volker Seidl, Uwe Stueven, Carolin Nadine Dücker, Matthias Weismantel, Wilfried Heide, Stefan Blei
  • Publication number: 20100120940
    Abstract: A water-absorbing goods having excellent absorption performance in practical use is to be provided at low price. A particulate water-absorbing agent provided by one aspect of the present invention is a particulate water-absorbing agent comprising a polyacrylate salt-type water-absorbing resin as a main component, and satisfying the following (a) and (b): (a) absorption capacity without load in artificial urine (A) is equal to or higher than 60 g/g; and (b) an increase rate of absorption capacity without load in artificial urine (B) relative to artificial urine (A) is equal to or larger than 20%.
    Type: Application
    Filed: April 4, 2008
    Publication date: May 13, 2010
    Applicant: NIPPON SHOKUBAI CO., LTD.
    Inventors: Yoshifumi Adachi, Ryoko Tahara, Katsuyuki Wada
  • Publication number: 20100119312
    Abstract: A method includes the steps of: adding an organic surface cross-linking agent to a water absorbent resin having a cross-linked structure; adding a liquid permeability improving agent to the water absorbent resin concurrently with or after the addition of the organic surface cross-linking agent; and then adding a lubrication improving agent to the water absorbent resin. This provides a particulate water absorbing agent and a method for producing it, the particulate water absorbing agent being suitable for pneumatic transportation, suffering no decrease in the effect of the liquid permeability improving agent, and excelling in properties such as fluidity and damage resistance after the pneumatic transportation.
    Type: Application
    Filed: March 28, 2008
    Publication date: May 13, 2010
    Inventors: Teruhisa Nagashima, Masatoshi Nakamura, Yusuke Watanabe, Kozo Nogi, Kunihiko Ishizaki
  • Patent number: 7714061
    Abstract: The present invention relates to a process for postcrosslinking water-absorbing polymeric particles in the absence of oxidizing gases, to the water-absorbing polymers preparable by the process and to their use in hygiene articles and packaging materials.
    Type: Grant
    Filed: November 28, 2005
    Date of Patent: May 11, 2010
    Inventors: Ulrich Riegel, Thomas Daniel, Uwe Stueven, Mark Elliott
  • Patent number: 7709556
    Abstract: Absorbable radiation or radiochemically sterilized medical devices, including sutures, whose breaking strength and absorption profile can be modulated by controlling the total dose received during sterilization are disclosed.
    Type: Grant
    Filed: October 9, 2003
    Date of Patent: May 4, 2010
    Assignee: Poly-Med, Inc.
    Inventor: Shalaby W. Shalaby
  • Publication number: 20100100124
    Abstract: Compounds are provided which can form bioabsorbable compositions useful as adhesives and/or sealants for medical/surgical applications.
    Type: Application
    Filed: October 20, 2009
    Publication date: April 22, 2010
    Applicant: TYCO HEALTHCARE GROUP LP
    Inventors: Allison Calabrese, Walter Skalla