Cellular Vinyl Alcohol Polymer Patents (Class 521/141)
  • Patent number: 10899913
    Abstract: A method for producing a crosslinked gel. The method comprises steps of: (a) combining (i) water, (ii) alginic acid, alginates, or mixtures thereof, (iii) carboxymethylcellulose, (iv) a salt of calcium, magnesium or zinc, (v) a nonionic surfactant and (vi) fragrance to form a gel having a surface; and (b) contacting with the surface of said gel an additional aqueous solution of a salt of calcium, magnesium or zinc.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: January 26, 2021
    Assignees: Rohm and Haas Company, Union Carbide Corporation
    Inventors: Andrea C. Keenan, Emmett M. Partain, III, Theodore Tysak, Jennifer J. Todd
  • Patent number: 10704076
    Abstract: A high through-put screening method for identifying agents effective for inhibiting biofilm formation and/or killing established biofilm are disclosed. The method includes three tiers, and each tier includes three specific biological process assays. The tier levels are a primary screen, a confirmation screen, and a dose-response screen, and the biological process assays include assays for total bacterial growth, bacterial metabolic activity, and biofilm formation. The series of assays may be run once or more than once at each tier. A library of compounds is subject to tier A and only compounds meeting a primary parameter advance to tier B, and only tier B compounds meeting a confirmation parameter advance to tier C, and only tier C compounds meeting a dose-response parameter are identified as putative agents effective for inhibiting and/or eradicating a biofilm, further wherein the assays are conducted for each compound subject to the respective tier.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: July 7, 2020
    Assignees: University of Cincinnati, Government of the United States as Represented by the Secretary of the Air Force
    Inventors: Daniel J. Hassett, Thomas J. Lamkin, Warunya Panmanee, Deborah E. Taylor, Chloe J. A. Shea
  • Patent number: 10575986
    Abstract: A first sponge device for use to manipulate and prepare the surface of the epithelium of an eye prior to application of an ophthalmic solution has a handle and a sponge head secured to the handle. The head is made of an absorbent, wicking sponge material and has a non-sharp, tissue preparation surface of predetermined shape for rubbing across the surface of the epithelium layer in order to manipulate the tissue. After the surface is prepared, a second, holding sponge is placed over the eye to act as a reservoir and to hold ophthalmic solution against the eye surface.
    Type: Grant
    Filed: May 12, 2014
    Date of Patent: March 3, 2020
    Assignee: CXL OPHTHALMICS, LLC
    Inventors: Roy S. Rubinfeld, Wayne Korteweg
  • Patent number: 10471183
    Abstract: High strength biomedical materials and processes for making the same are disclosed. Included in the disclosure are nanoporous hydrophilic solids that can be extruded with a high aspect ratio to make high strength medical catheters and other devices with lubricious and biocompatible surfaces.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: November 12, 2019
    Assignee: Access Vascular, Inc.
    Inventors: James F. Biggins, Michael Bassett, Daniel Donahue
  • Patent number: 10336878
    Abstract: A composition for the manufacture of temperature resistant and sound attenuating automotive parts includes polyethylene terephthalate resin, basalt fibers, and mica. The basalt fibers and mica may be between 35 and 40% of the composition by weight of the total composition. The basalt fibers may be between 20 and 30% of the composition by weight and the mica may be between 5 and 15% of the composition by weight. The basalt fibers may be 25% of the composition by weight and the mica may be 10% of the composition by weight. A method is disclosed for molding a temperature resistant and sound attenuating part by blending a foaming agent with a thermoplastic olefin, basalt fibers and mica to form a resin mixture. The resin mixture is injected under pressure into a die to fill the die. The pressure is reduced to allow the foaming agent to form a microcellular core.
    Type: Grant
    Filed: May 19, 2017
    Date of Patent: July 2, 2019
    Assignee: FORD MOTOR COMPANY
    Inventors: Paul Kenneth Dellock, Stuart C. Salter, Paulina Vazquez Orpinel, Michael A. Musleh, Ana Valeria Vazquez
  • Patent number: 9968638
    Abstract: The present invention provides compositions that include an extract of human feces, and methods for using such compositions, including methods for replacing or supplementing or modifying a subject's colon microbiota, and methods for treating a disease, pathological condition, and/or iatrogenic condition of the colon.
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: May 15, 2018
    Assignee: REGENTS OF THE UNIVERSITY OF MINNESOTA
    Inventors: Michael J. Sadowsky, Alexander Khoruts, Alexa R. Weingarden, Matthew J. Hamilton
  • Patent number: 9617403
    Abstract: A putty material primarily used as a toy which is solid and capable of flowing for forming, preferably by manual manipulation, onto various pleasing shapes. This putty material is used primarily by children as an amusement device. The putty material is formed from a homogeneous mixture of primarily water, polyvinyl alcohol, gum, polyethylene terephthalate (PET) and a small amount of borax wherein the ratio by weight of borax to polyvinyl alcohol is preferably in the range of between 1:12 to 1:22. The toy modeling composition can be formed opaque or translucent and can be dyed, particularly when clear, to create various overall artistic effects, and glitter can be applied on the paste to create unusual aesthetic effects, particularly when using white glitter. Coloration can be applied to the materials with translucent ink or with a marker.
    Type: Grant
    Filed: May 1, 2013
    Date of Patent: April 11, 2017
    Assignee: HORIZON GROUP USA
    Inventor: Roshan Wijerama
  • Patent number: 9522218
    Abstract: The present invention relates to a method for preparing a porous scaffold for tissue engineering. It is another object of the present invention to provide a porous scaffold obtainable by the method as above described, and its use for tissue engineering, cell culture and cell delivery. The method of the invention comprises the steps consisting of: a) preparing an alkaline aqueous solution comprising an amount of at least one polysaccharide, an amount of a cross-linking agent and an amount of a porogen agent b) transforming the solution into a hydrogel by placing said solution at a temperature from about 4° C. to about 80° C. for a sufficient time to allow the cross-linking of said amount of polysaccharide and c) submerging said hydrogel into an aqueous solution d) washing the porous scaffold obtained at step c).
    Type: Grant
    Filed: October 10, 2008
    Date of Patent: December 20, 2016
    Assignees: INSERM (Institut National de la Santé et de la Recherche Médicale), Université Paris 7—Denis Diderot
    Inventors: Catherine Le Visage, Didier Letourneur
  • Patent number: 9492333
    Abstract: The present invention addresses the problem of, in an absorbent article, maintaining at a certain level or lower the difference between the dry flexural rigidity and wet flexural rigidity [(dry flexural rigidity)?(wet flexural rigidity)] at a bonding part. To solve this problem, provided is a sanitary napkin which comprises a top sheet, a back sheet, an absorbent body that is interposed between the top sheet and the back sheet and a compressed part that unites the top sheet and the absorbent body in the thickness direction, wherein: the absorbent body contains a cellulose-based water absorbing fiber and a thermoplastic resin fiber, said thermoplastic resin fiber containing as a monomer component an unsaturated carboxylic acid, an unsaturated carboxylic acid anhydride or a mixture thereof; and the difference between the dry Gurley stiffness and wet Gurley stiffness of the compressed part is maintained at 2.5 mN/12.5 mm or lower.
    Type: Grant
    Filed: August 19, 2013
    Date of Patent: November 15, 2016
    Assignee: UNICHARM CORPORATION
    Inventors: Masashi Uda, Takashi Maruyama
  • Publication number: 20150144563
    Abstract: Articles containing soil adsorbing polymers, and more particularly, articles, for example nonwovens, such as paper towels, wovens, and/or sponges and/or article-forming components thereof that comprise a durably bonded soil adsorbing polymer, article-forming components used to make such articles, and processes for making same are provided.
    Type: Application
    Filed: November 20, 2014
    Publication date: May 28, 2015
    Inventors: Robin Lynn McKIERNAN, Robert Joseph McCHAIN, Steven Daryl SMITH
  • Patent number: 9006303
    Abstract: The invention provides a particulate material comprising porous polymeric microparticles having a mesoporous structure. A process for making the particles is also presented. The process comprises impregnating a porous microparticulate template material with a liquid comprising one or more monomers. The one or more monomers are then polymerized in and/or on the template material to form a polymer, and the template material is then removed to produce the particulate material.
    Type: Grant
    Filed: March 8, 2007
    Date of Patent: April 14, 2015
    Assignee: Agency for Science, Technology and Research
    Inventors: Yugen Zhang, Jackie Y. Ying, Pranab K. Singapore
  • Publication number: 20140370075
    Abstract: Reinforced, laminated, impregnated, and materials with composite properties as cross linked polyvinyl alcohol hydrogel structures in bulk or cellular matrix forms that can take essentially any physical shape, or can have essentially any size, degree of porosity and surface texture. They have a wide range of physical properties, unusual and unique combinations of physical properties and unique responses to stress fields, which allows for their use in many end use applications.
    Type: Application
    Filed: August 21, 2014
    Publication date: December 18, 2014
    Inventor: Nedeljko Vladimira Gvozdic
  • Publication number: 20140353248
    Abstract: There is provided a shaped article made of porous hydrogel that contains a polyvinyl alcohol acetalized with a dialdehyde, wherein the shaped article after freeze-drying has a pore size of 0.1 to 50 ?m. Preferably, the shaped article made of porous hydrogel further contains a water-soluble polysaccharide. Also preferably, an acetalization degree of the polyvinyl alcohol is 1 to 50 mol %. Also preferably, the shaped article made of porous hydrogel is in the form of particles with a sphere-equivalent diameter of 1 to 20 mm. Such a shaped article made of porous hydrogel exhibits high strength and good survivability of microorganisms.
    Type: Application
    Filed: December 26, 2012
    Publication date: December 4, 2014
    Applicant: KURARAY CO., LTD.
    Inventors: Tatsuya Oka, Arata Ishiodori, Mototsugu Yoshihara
  • Publication number: 20140311383
    Abstract: A structural three dimensional nanocomposite with improved mechanical properties is provided. The structural three dimensional nanocomposite includes (a) spherical shaped nanoparticles, (b) a matrix, and (c) an inter phase structure. The matrix may be selected from at least one of (a) polymer matrix, and (b) a nano metal matrix. The spherical shaped nanoparticles are reinforced with the matrix. The spherical shaped nanoparticles are uniformly distributed throughout the matrix. The inter phase structure transfers stress from the matrix to obtain the spherical shaped nanoparticles with improved mechanical properties. The structural three dimensional nanocomposite have high and equal mechanical strength in three dimensions when the structural three dimensional nanocomposite is at least one of (a) volume compressive stress condition, and (b) volume expansive stress condition.
    Type: Application
    Filed: April 16, 2014
    Publication date: October 23, 2014
    Inventor: Thirunavukkarasu Asaimuthu
  • Publication number: 20140219869
    Abstract: Provided is a support for effectively capturing glycated protein in a sample, and a device and method for measuring the glycated protein by using the support.
    Type: Application
    Filed: February 7, 2014
    Publication date: August 7, 2014
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Woochang LEE, Sang-kyu Kim, Kyung-mi Song, Jin-mi Oh, Soo-suk Lee, Youn-suk Choi
  • Publication number: 20140134415
    Abstract: Highly porous, lightweight, and sustainable hybrid organic aerogels with ultra-low densities and excellent material properties and methods for preparing them are provided, including, e.g., PVA/CNF/GONS, RF/CNF/GONS, and PVA/CNF/MWCNT. The aerogels are modified to have a super-hydrophobic surface, thus leading to an extremely low swelling ratio and rate of moisture absorption.
    Type: Application
    Filed: November 11, 2013
    Publication date: May 15, 2014
    Applicants: The United States of America as Represented by the Secretary of Agriculture, Wisconsin Alumni Research Foundation
    Inventors: Shaoqin GONG, Alireza JAVADI, Qifeng ZHENG, Zhiyong CAI, Ronald SABO
  • Patent number: 8637582
    Abstract: A method of forming a porous material having improved compressive strength, includes forming an aerogel precursor that includes a polymer having a functional group capable of undergoing a crosslinking reaction dispersed in a dispersion medium. The precursor also includes a crosslinking agent. The aerogel precursor is frozen so that the dispersion is solidified, and freeze dried to sublime the dispersion medium and form the porous material. The crosslinking agent is reacted with the functional group to effect crosslinking, thus improving the compressive strength of the porous material.
    Type: Grant
    Filed: June 11, 2010
    Date of Patent: January 28, 2014
    Assignee: Case Western Reserve University
    Inventors: Matthew D. Gawryla, David A. Schiraldi
  • Patent number: 8557270
    Abstract: The present invention relates to a method of manufacture of an interconnected porous non-biodegradable polymer implant suitable for implantation into a mammal for the treatment, repair or replacement of defects or injury in musculoskeletal tissue, wherein the mechanical properties of the implant can be controlled by varying the concentration of the non-biodegradable polymer and/or varying the duration and number of freeze-thaw cycles and the interconnected porous non-biodegradable polymer implant has sufficient percent porosity and pore diameter to facilitate integration of cells and attachment within the mammal via ingrowth of surrounding tissue. The present invention also relates to an implant manufactured by the method.
    Type: Grant
    Filed: January 12, 2012
    Date of Patent: October 15, 2013
    Assignee: New York Society for the Ruptured and Crippled Maintaining the Hospital for Special Surgery
    Inventors: Suzanne A. Maher, Kenneth Ng, Tony Chen, Florian Wanivenhaus
  • Publication number: 20130216802
    Abstract: The present invention provides a composite wall panel with good thermal insulation and sufficient strength for structural use which is designed for the fabrication of energy efficient building. The composite wall panel of the present invention comprises a foamed concrete core with sufficient compressive strength and low thermal conductivity which is sandwiched between two lightweight ductile fiber reinforced cementitious composite (FRCC) protective layers with low thermal conductivity, good barrier resistance to moisture/chloride ion/gas, multiple cracking as well as certain amount of steel reinforcements. These composite wall panels are useful in a variety of buildings in both cold and hot regions.
    Type: Application
    Filed: February 18, 2013
    Publication date: August 22, 2013
    Applicant: NANO AND ADVANCED MATERIALS INSTITUTE LIMITED
    Inventor: NANO AND ADVANCED MATERIALS INSTITUTE LIMITED
  • Publication number: 20130217127
    Abstract: A cryogel contains a polyol and a co-polymer of Formula (I).
    Type: Application
    Filed: August 8, 2011
    Publication date: August 22, 2013
    Inventor: Ashok Kumar
  • Publication number: 20130139834
    Abstract: Porous beads are provided of a polymer of a non-acidic monomer and a cross-linker having polar functionality, one of which is hydrophilic, the other of which is hydrophobic, further comprising residues of polyvinyl alcohol. The beads may be molecularly imprinted or non-molecularly imprinted. The use of such beads in the removal of nitroso-containing compounds from material containing them is also disclosed. Also disclosed is a non-molecularly imprinted polymer which is selectively adsorbent for at least one tobacco specific nitrosamine in the presence of nicotine, said polymer being a polymerization product of a non-acidic monomer and a cross-linker having polar functionality, one of which is hydrophilic, the other of which is hydrophobic.
    Type: Application
    Filed: January 18, 2013
    Publication date: June 6, 2013
    Applicant: British American Tobacco (Investments) Limited
    Inventor: British American Tobacco (Investments) Limited
  • Patent number: 8431623
    Abstract: The present invention relates to a process for forming a porous poly(vinyl alcohol) (PVA) scaffold using a pore-forming agent, comprising: mixing PVA with the pore-forming agent to form micropores in the PVA scaffold and using an easily decomposable pore-forming agent after the formation of the pores to improve convenience and reduce the processing time in manufacturing the porous PVA scaffold as well as to enable a pore size and porosity to be selected. A process for forming a porous PVA scaffold using a pore-forming agent according to the present invention includes heating to melt the PVA, cooling the melted PVA and mixing the PVA with a heat-decomposable pore-forming agent, repeating the freezing/thawing of the mixed PVA to cure the PVA mixture, and stirring the cured PVA mixture with a hydrochloric acid solution at a high temperature of 65° C. or more to produce foam.
    Type: Grant
    Filed: May 10, 2010
    Date of Patent: April 30, 2013
    Assignee: Korea Bone Bank Co., Ltd.
    Inventors: Young-Bock Shim, Hong-Hee Jung, Yon-Rak Choi, Ju-Woong Jang
  • Publication number: 20130041059
    Abstract: Disclosed is a curable composition comprising a linear hydrolyzable silyl group-containing polymer and a branched hydrolyzable silyl group-containing polymer in the weight ratio of 1:9 to 9:1 and having a specific weight of less than 1.15.
    Type: Application
    Filed: February 23, 2011
    Publication date: February 14, 2013
    Applicant: Giken Kabushiki Kaisha
    Inventors: Tomoyuki Torii, Kohei Yamada, Yoshimitsu Nakayama, Masahiro Ito
  • Publication number: 20130023650
    Abstract: Provided is a filler for affinity chromatography which is useful for protein purification and contains porous particles that have a high dynamic binding capacity for proteins and excellent pressure characteristics. The filler for affinity chromatography of the present invention is characterized in that it includes a porous particle consisting of a polymer of vinyl monomer including a cross-linkable vinyl monomer that contains hydroxyl group but does not contain epoxy group and an epoxy group-containing non-cross-linkable vinyl monomer, or a cross-linkable vinyl monomer that contains hydroxyl group and epoxy group, ligands bound to the porous particle, and ring-opened epoxy groups.
    Type: Application
    Filed: March 29, 2011
    Publication date: January 24, 2013
    Applicant: JSR CORPORATION
    Inventors: Kouji Tamori, Takayoshi Abe, Yusuke Okano, Masaki Momiyama, Hiroshi Kawai, Satoshi Hyugaji, Yong Wang
  • Publication number: 20130018119
    Abstract: A filter material and method for its preparation for separation of hydrophilic substances from environment of various hydrophobic liquids or gases. Such hydrophobic substances can be different chemical and oil products, substances of biological origin (fats, essential oils). Hydrophilic substance can be water, lower alcohols (methanol, ethanol), polybasic alcohols, substances dissociating in aqueous solution (salts, acids or bases). Filter material is in the form of oxygen containing polymer, which microscopic and macroscopic structure forms during polymerization process. More precisely the filter material consists of polyacetal for example polyvinylacetal. Polymeric structure of filter material forms during synthesizing reaction of the polyacetal by the action of the assisting substances taken into reaction medium.
    Type: Application
    Filed: December 20, 2010
    Publication date: January 17, 2013
    Applicant: OU BIOCONSULT
    Inventors: Vitali Chipizubov, Priit Post, Rene Peterson, Toomas Kaevand
  • Publication number: 20120309851
    Abstract: The present invention relates to methods for removing residual surface material from porous polymerized particle surfaces. The particles thus produced have an increase in surface porosity and uniformity in a variety of applications. Desirably, substantially the entire surface communicates with the interior of the particles. Also provided are the particles produced by such methods, further modifications of such particles, and methods for using the particles in a variety of applications. All described methods, compositions, and articles of manufacture are within the scope of the invention.
    Type: Application
    Filed: May 4, 2010
    Publication date: December 6, 2012
    Inventors: Nai-Hong Li, Yuchiong Hsuanyu, James R. Benson, Marc Freed
  • Patent number: 8242182
    Abstract: The invention provides a method for preparing water dispersible or water soluble porous bodies and the bodies themselves The bodies have an intrusion volume as measured by mercury porosimetry of at least about 3 ml/g and comprise a three dimensional open-cell lattice containing less than 10% by weight of a water soluble polymeric material and 5 to 90% by weight of a surfactant, with the proviso that said porous bodies are not spherical beads having an average bead diameter of 0.2 to 5 mm.
    Type: Grant
    Filed: January 28, 2005
    Date of Patent: August 14, 2012
    Assignee: IOTA NanoSolutions Limited
    Inventors: Andrew Ian Cooper, David John Duncalf, Alison Jayne Foster, Steven Paul Rannard, Haifei Zhang
  • Publication number: 20120178836
    Abstract: The present invention relates to a method of manufacture of an interconnected porous non-biodegradable polymer implant suitable for implantation into a mammal for the treatment, repair or replacement of defects or injury in musculoskeletal tissue, wherein the mechanical properties of the implant can be controlled by varying the concentration of the non-biodegradable polymer and/or varying the duration and number of freeze-thaw cycles and the interconnected porous non-biodegradable polymer implant has sufficient percent porosity and pore diameter to facilitate integration of cells and attachment within the mammal via ingrowth of surrounding tissue. The present invention also relates to an implant manufactured by the method.
    Type: Application
    Filed: January 12, 2012
    Publication date: July 12, 2012
    Applicant: NEW YORK SOCIETY FOR THE RUPTURED AND CRIPPLED MAINTAINING THE HOSPITAL FOR SPECIAL SURGERY
    Inventors: Suzanne A. Maher, Kenneth Ng, Tony Chen, Florian Wanivenhaus
  • Publication number: 20120108689
    Abstract: The present invention relates to a process for forming a porous poly(vinyl alcohol) (PVA) scaffold using a pore-forming agent, and more particularly, to a process for forming a porous PVA scaffold using a pore-forming agent, comprising: mixing PVA with the pore-forming agent to form micropores in the PVA scaffold and using an easily decomposable pore-forming agent after the formation of the pores to improve convenience and reduce the processing time in manufacturing the porous PVA scaffold as well as to enable a pore size and porosity to be selected. A process for forming a porous PVA scaffold using a pore-forming agent according to the present invention includes heating to melt the PVA, cooling the melted PVA and mixing the PVA with a heat-decomposable pore-forming agent, repeating the freezing/thawing of the mixed PVA to cure the PVA mixture, and stirring the cured PVA mixture with a hydrochloric acid solution at a high temperature of 65° C. or more to produce foam.
    Type: Application
    Filed: May 10, 2010
    Publication date: May 3, 2012
    Applicant: KOREA BONE BANK CO., LTD.
    Inventors: Young-Bock Shim, Hong-Hee Jung, Yon-Rak Choi, Jui-Woong Jang
  • Publication number: 20120088857
    Abstract: A method of forming a porous material having improved compressive strength, includes forming an aerogel precursor that includes a polymer having a functional group capable of undergoing a crosslinking reaction dispersed in a dispersion medium. The precursor also includes a crosslinking agent. The aerogel precursor is frozen so that the dispersion is solidified, and freeze dried to sublime the dispersion medium and form the porous material. The crosslinking agent is reacted with the functional group to effect crosslinking, thus improving the compressive strength of the porous material.
    Type: Application
    Filed: June 11, 2010
    Publication date: April 12, 2012
    Applicant: CASE WESTERN RESERVE UNIVERSITY
    Inventors: Matthew D. Gawryla, David A. Schiraldi
  • Publication number: 20120076711
    Abstract: A structure is disclosed containing a sorbent with amine groups that is capable of a reversible adsorption and desorption cycle for capturing CO2 from a gas mixture wherein said structure is composed of fiber filaments wherein the fiber material is carbon and/or polyacrylonitrile.
    Type: Application
    Filed: February 8, 2010
    Publication date: March 29, 2012
    Applicant: ETH ZURICH
    Inventors: Christoph Gebald, Jan André Wurzbacher, Aldo Steinfeld
  • Publication number: 20120071577
    Abstract: The invention relates to the use of 2,5-diisocyanato-1,4:3,6-dianhydro-2,5-dideoxy-D-manitol (I), 2,5-diisocyanato-1,4:3,6-dianhydro-2,5-dideoxy-D-glucitol (II), and/or 2,5-diisocyanato-1,4:3,6-dianhydro-2,5-dideoxy-L-iditol (III).
    Type: Application
    Filed: April 23, 2010
    Publication date: March 22, 2012
    Applicant: EVONIK DEGUSSA GmbH
    Inventors: Jan Pfeffer, Martina Ortelt, Emmanouil Spyrou, Thomas Haas, Uwe Korek, Harald Schmidt, Uwe Dingerdissen
  • Publication number: 20110230567
    Abstract: A cryogel-forming vinyl alcohol co-polymer is operable to form a cryogel, i.e., a hydrogel formed by crytropic gelation, in an aqueous solution at a concentration of less than about 10% by weight, in the absence of a chemical cross-linking agent and in the absence of an emulsifier. In one embodiment, a vinyl alcohol co-polymer cryogel comprises at least about 75% by weight water and a vinyl alcohol co-polymer, wherein the vinyl alcohol co-polymer is operable to form a cryogel in an aqueous solution at a concentration of less than about 10% by weight, in the absence of a chemical cross-linking agent and in the absence of an emulsifier.
    Type: Application
    Filed: September 14, 2009
    Publication date: September 22, 2011
    Inventors: Maria Stromme, Albert Mihranyan
  • Publication number: 20110223426
    Abstract: The present invention provides a method for producing single-hole hollow polymer particles having extremely uniform outer diameters and inner diameters with no need for classification operation. Further, the present invention provides single-hole hollow polymer particles produced by the method for producing single-hole hollow polymer particles.
    Type: Application
    Filed: September 17, 2009
    Publication date: September 15, 2011
    Inventors: Hiroshi Yamauchi, Yasuyuki Yamada
  • Publication number: 20110223486
    Abstract: At least a selected microporous membrane is made by a dry-stretch process and has substantially round shaped pores and a ratio of machine direction tensile strength to transverse direction tensile strength in the range of 0.5 to 6.0. The method of making the foregoing microporous membrane may include the steps of: extruding a polymer into a nonporous precursor, and biaxially stretching the nonporous precursor, the biaxial stretching including a machine direction stretching and a transverse direction stretching, the transverse direction including a simultaneous controlled machine direction relax.
    Type: Application
    Filed: March 10, 2011
    Publication date: September 15, 2011
    Inventors: Xiaomin Zhang, Gerald P. Rumierz, Karl F. Humiston, Charles E. Haire, Tyrone S. Fields, Michael A. Braswell, Ronald A. Proctor
  • Publication number: 20110212179
    Abstract: Provided herein are bimodal porous polymer microspheres comprising macropores and micropores. Also provided herein are methods and apparatus for fabrication such microspheres. Further provided herein are methods of using bimodal porous polymer microspheres.
    Type: Application
    Filed: October 30, 2009
    Publication date: September 1, 2011
    Inventor: David Liu
  • Patent number: 7931964
    Abstract: A microporous layer comprising a microporous xerogel comprising pores that are substantially continuously interconnected from a first outermost surface of the microporous xerogel through to a second outermost surface of the microporous xerogel; and a crosslinked polymer binder comprising a polymer having a glass transition temperature of about 50° C. or higher, wherein the polymer binder is water soluble prior to crosslinking.
    Type: Grant
    Filed: April 10, 2008
    Date of Patent: April 26, 2011
    Assignee: World Properties, Inc.
    Inventor: Murali Sethumadhavan
  • Publication number: 20100159768
    Abstract: An auxetic fiber and corresponding material that not only responds to an external force, but also responds to moisture. The auxetic fiber is made in part from a moisture activated shrinking filament. Even if no external force is applied to the fiber, a pseudo tensile force is created by wetting the auxetic fiber.
    Type: Application
    Filed: December 18, 2008
    Publication date: June 24, 2010
    Inventors: WanDuk Lee, SangSoo Lee, CholWon Koh, Jim Heo
  • Publication number: 20100093093
    Abstract: The present invention refers to an apparatus and a method for the manufacture of a three-dimensional scaffold at low temperatures and the respective use of this method and apparatus.
    Type: Application
    Filed: December 5, 2007
    Publication date: April 15, 2010
    Inventors: Meng Fatt Leong, Tze Chiun Lim, Kerm Sin Chian
  • Publication number: 20100028971
    Abstract: The invention discloses a carrier made from an organic foam having open pores for enzymes or cells immobilization and the methods for preparing immobilized enzymes or cells. The invention uses flocculation and crosslinking technology to immobilize enzyme protein or cells on the organic foam material having open pores. The resultant immobilized products have larger specific surface area, higher specific activity and can be made into various shapes.
    Type: Application
    Filed: September 25, 2006
    Publication date: February 4, 2010
    Applicant: GENEHARBOR (HONG KONG) TECHNOLOGIES LTD.
    Inventors: Caike Jin, Jun Wang
  • Publication number: 20090312448
    Abstract: The invention provides a method of agglomeration (10) which has the steps of mixing a feedstock (12) of small particles which have an average particle size of 3 mm or less with a binder (14) which is in the form of a polyvinyl alcohol in the form of an aqueous polyvinyl alcohol solution in a first blender (16) to form a binder mixture (18), reacting a gelling agent (20) with the feedstock and the binder and processing the binder mixture to deliver an agglomerate (22).
    Type: Application
    Filed: July 19, 2007
    Publication date: December 17, 2009
    Applicant: Tower Technology Holdings (PTY) Ltd.
    Inventor: Michael Windsor Symons
  • Publication number: 20090292035
    Abstract: A cellular foamed article is provided, including a polymeric foam material and a micro- or nano-sized reinforcement material embedded in the foam material. Also, methods of making a reinforced cellular foamed articles are provided, including preparing a dispersion comprising a reinforcement material and a polymer precursor; processing the reinforcement material so that it has a volume average length ranging from about average cross sectional diameter of from about 1 to about 500 nm and a volume average length of from about 10 nm to about 10 ?m; reacting the polymer precursor to form a foamable polymer; and foaming the foamable polymer.
    Type: Application
    Filed: May 26, 2009
    Publication date: November 26, 2009
    Inventor: Edmund Bernard Semmes
  • Patent number: 7544720
    Abstract: Water dispersible or water soluble porous bodies comprising a three dimensional open-cell lattice containing 10 to 95% by weight of a polymeric material which is soluble in water, and, less than 5% by weight of a surfactant, said porous bodies having an intrusion volume as measured by mercury porosimetry (as hereinafter described) of at least about 3 ml/g, and, with the proviso that said porous bodies are not spherical beads having an average bead diameter of 0.2 to 5 mm.
    Type: Grant
    Filed: January 28, 2005
    Date of Patent: June 9, 2009
    Assignee: Conopco, Inc.
    Inventors: Andrew Ian Cooper, David John Duncalf, Alison Jayne Foster, Steven Paul Rannard, Haifei Zhang
  • Publication number: 20090082479
    Abstract: Disclosed herein is a method of preparing a fused aerogel-polymer composite in which aerogel and an organic polymer is mixed in a dry state to adsorb polymer particles on the surface of the aerogel and are then subjected to thermal treatment, thus forming a polymer coating on the aerogel. The fused aerogel-polymer composite can be used for thermal insulation in a variety of applications. The fused aerogel-polymer composite exhibits high thermal insulation properties and superior physical strength and processability while still maintaining the properties of an aerogel that does not have a polymer coated on its surface.
    Type: Application
    Filed: April 10, 2008
    Publication date: March 26, 2009
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Myung Dong CHO
  • Publication number: 20090029110
    Abstract: This invention refers to synthetic decorative coverings in order to cover and protect trafficable surfaces.
    Type: Application
    Filed: September 20, 2007
    Publication date: January 29, 2009
    Inventor: Gabriel Lopez Montiel
  • Publication number: 20080254278
    Abstract: A microporous layer comprising a microporous xerogel comprising pores that are substantially continuously interconnected from a first outermost surface of the microporous xerogel through to a second outermost surface of the microporous xerogel; and a crosslinked polymer binder comprising a polymer having a glass transition temperature of about 50° C. or higher, wherein the polymer binder is water soluble prior to crosslinking.
    Type: Application
    Filed: April 10, 2008
    Publication date: October 16, 2008
    Inventor: Murali Sethumadhavan
  • Patent number: 7427321
    Abstract: Disclosed are formulations adapted to form a foamed cementitious composition, the foamed cementitious composition itself, a method of forming a hydraulic binder foam, and a method of conveying and applying the resulting foam to a substrate. A pumpable cementitious slurry is formed, the slurry is mixed with a gas such as air, and is subjected to mechanically created turbulence to generate gas bubbles and create a foam, which preferably is stabilized by a foam stabilizing agent such as polyvinyl alcohol present in the slurry. The foam is then conveyed to a nozzle or other suitable dispense point from which it is applied, for example sprayed, preferably uniformly, onto a substrate to be coated. Prior to dispensing, a set accelerator is preferably injected, which causes the foam to gel, which in turn improves the hangability of the product on a substrate. The spray material adheres to the substrate and hardens to form an insulative coating on the substrate.
    Type: Grant
    Filed: September 30, 2003
    Date of Patent: September 23, 2008
    Assignee: W.R. Grace & Co. -Conn.
    Inventors: Dennis M. Hilton, Michael D. Morgan, Robert Paul, Karl D. Taub, Robert S. Young, Ricky N. Bastarache
  • Publication number: 20080221231
    Abstract: The invention provides a method for preparing water dispersible or water soluble porous bodies and the bodies themselves The bodies have an intrusion volume as measured by mercury porosimetry of at least about 3 ml/g and comprise a three dimensional open-cell lattice containing less than 10% by weight of a water soluble polymeric material and 5 to 90% by weight of a surfactant, with the proviso that said porous bodies are not spherical beads having an average bead diameter of 0.2 to 5 mm.
    Type: Application
    Filed: January 28, 2005
    Publication date: September 11, 2008
    Inventors: Andrew Ian Cooper, David John Duncalf, Alison Jayne Foster, Steven Paul Rannard, Haifei Zhang
  • Patent number: 7265160
    Abstract: The foam sheet of the present invention is biodegradable, can be recycled, has good processability, is lightweight, exhibits excellent appearance, has practically satisfactory heat resistance and is more acceptable to the environment. There is provided a crosslinked biodegradable resin continuous foam sheet comprising biodegradable resin, and has an expansion rate of about 1.5 to about 50 and a gel fraction of about 3% or more. There is further provided a method for producing the foam sheet comprising the steps of: (1) preparing a sheet from a resin composition comprising a biodegradable resin, a thermal decomposable blowing agent, and a crosslinking promoter; (2) irradiating the resulting sheet with an ionizing radiation to crosslink the resin composition; and (3) subjecting the crosslinked sheet to heat treatment to continuously prepare a crosslinked foam sheet.
    Type: Grant
    Filed: November 27, 2002
    Date of Patent: September 4, 2007
    Assignee: Toray Industries, Inc.
    Inventors: Yoshiyuki Oka, Jun Goto, Fusayoshi Akimaru, Noriaki Tsukada, Junichi Tainaka
  • Patent number: 7247657
    Abstract: A novel expandable composition and method for using the same are disclosed. The disclosed method relates to using the composition, for example, as an automotive cavity sealant. The inventive composition normally is a combination of at least one base polymer, at least one expansion or blowing agents, at least one hydrocarbon resin, at least one curing agent or catalyst and optionally at least one additives such as a supplemental polymer, colorant, tackifier, processing oil, among others.
    Type: Grant
    Filed: October 13, 2004
    Date of Patent: July 24, 2007
    Assignee: Henkel Corporation
    Inventors: Gary Raymond Duffin, Michael Allen Lupini, Donald W. Taylor, Peter Tkacz