Pore Forming In Situ (e.g., Foaming, Etc.) Patents (Class 264/41)
  • Patent number: 10946343
    Abstract: The present disclosure relates to improved semipermeable membranes based on acrylonitrile copolymers for use in dialyzers for the extracorporeal treatment of blood in conjunction with hemodialysis, hemofiltration or hemodiafiltration. The present disclosure further relates to methods of producing such membranes.
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: March 16, 2021
    Assignee: GAMBRO LUNDIA AB
    Inventor: Benjamin Malard
  • Patent number: 10941279
    Abstract: A breathable film is described having a basis weight from 1 g/m2 to 10 g/m2, a process for producing the breathable film and use of a surface-treated filler material product as filler in the breathable film. Finally, an article is described that includes the breathable film as well as the use of the breathable film in hygienic applications, medical applications, healthcare applications, filtration materials, geotextile products, agricultural applications, horticultural applications, clothing, footwear products, baggage products, household applications, industrial applications, packaging applications, building applications, or construction.
    Type: Grant
    Filed: November 11, 2016
    Date of Patent: March 9, 2021
    Inventors: Martin Brunner, Tazio Fornera, Michael Knerr, Michael Tinkl, Marcus Unger
  • Patent number: 10927594
    Abstract: A vehicle door for a railway vehicle and a railway vehicle includes the vehicle door include a first door skin, a second door skin and a foaming material forming a laminated structure, the foaming material being filled between the first and second door skins, wherein the first door skin has at least one folded edge portion, and the second door skin has a first bent edge portion tightly clamped in the folded edge portion in a position corresponding to each of the folded edge portions. Since during the fixing of the first and second door skins, at least part thereof is realized by a folding and clamping technique, adhesion failure risk between the door skins and a frame body is effectively lowered during use, the reliability of the fixed connection between the two door skins is improved, and the vehicle door weight and the production cost are reduced during manufacture.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: February 23, 2021
    Assignee: IFE-VICTALL Railway Vehicle Door Systems (Qingdao) Co., Ltd.
    Inventors: Duanjun Ma, Changyu Xie, Werner Hoefler
  • Patent number: 10808058
    Abstract: Poly(ethylene tetrafluoroethylene) (ETFE) polymers having an average molecular weight of at least 300,000 g/mol and a melt enthalpy of at least 57 J/g are provided. The ETFE polymer may include at least one additional comonomer. The ETFE polymer is used to form a porous tape or membrane that has a node and fibril structure. A porous ETFE tape may be formed by lubricating the ETFE polymer and subjecting the lubricated polymer to pressure at a temperature below the melting point of the ETFE polymer. Optionally, the ETFE tape may be expanded at a temperature below the melting temperature of the ETFE polymer to form an expanded ETFE membrane. Alternatively, the ETFE polymer may subjected to heat and pressure without the addition of a lubricant to form a dense preform. The dense preform may be subsequently slit in a length direction and stretched to form a dense ETFE fiber.
    Type: Grant
    Filed: November 24, 2015
    Date of Patent: October 20, 2020
    Assignee: W. L. Gore & Associates, Inc.
    Inventor: Guy A. Sbriglia
  • Patent number: 10760185
    Abstract: An acrylonitrile-containing fiber includes 100 parts by mass of a polymer including at least 15 parts by mass of acrylonitrile; and 1.0 to 50 parts by mass of a water absorbent resin having a pure water absorption capacity (g/g) with respect to its own weight of at least 10 but less than 100, wherein the fiber is dyeable with a disperse dye.
    Type: Grant
    Filed: October 10, 2017
    Date of Patent: September 1, 2020
    Inventors: Takeshi Tanaka, Tomomichi Hashimoto
  • Patent number: 10737423
    Abstract: A mold tool is provided that includes plural mold sub-volumes configured to receive a sealant, a mold channel in fluid communication with the mold sub-volumes, a sealant injection port in fluid communication with the mold channel, vacuum application ports in fluid communication with the mold sub-volumes, and an air control system. The air control system is operably coupled to the mold sub-volumes and the mold channel, and is configured to apply a vacuum to the mold sub-volumes via the vacuum application ports.
    Type: Grant
    Filed: August 28, 2015
    Date of Patent: August 11, 2020
    Assignee: The Boeing Company
    Inventor: Chris J. Erickson
  • Patent number: 10730264
    Abstract: Bridge tape comprised of thermally foamable composition, useful for applying coating material through holes in the tape to a substrate beneath the tape, after which the holes can be sealed by heating to cause the foamable composition to foam and expand the foam to seal the holes.
    Type: Grant
    Filed: February 23, 2016
    Date of Patent: August 4, 2020
    Assignee: TESA SE
    Inventor: Robert Fallon
  • Patent number: 10483017
    Abstract: A flame retardant resin composition including a base resin including 18 to 85% by mass of a high density polyethylene, 9 to 69% by mass of a low density polyethylene, and 3 to 25% by mass of an acid-modified polyolefin compound, and 25 parts by mass to 110 parts by mass of calcium carbonate particles, more than 1 part by mass to 10 parts by mass of a silicone-based compound, and 2 parts by mass to 20 parts by mass of a fatty acid-containing compound, each on the basis of 100 parts by mass of the base resin.
    Type: Grant
    Filed: August 25, 2015
    Date of Patent: November 19, 2019
    Assignee: Fujikura Ltd.
    Inventors: Nao Nishida, Seiichi Taira, Shoichiro Nakamura
  • Patent number: 10471635
    Abstract: For manufacturing composite parts (1) having an inner hollow moulded body (2) with openings (3), which are accessible from outside, the moulded body is introduced into a moulding tool on the mould walls on which a shell layer (11) was applied. The hollow space between the moulded body (2) and the shell layer (11) is filled with a thermally insulating plastic foam (12) which is foamed in the moulding tool and bonds to the moulded body and the shell layer. After removal, a moulded body is provided, which has a qualitatively good surface formed by the shell layer. Such a composite part is preferably used for connecting thermally insulating pipes.
    Type: Grant
    Filed: August 5, 2015
    Date of Patent: November 12, 2019
    Assignee: Brugg Rohr AG Holding
    Inventors: Alfred Oeschger, Juergen Kress, Christian Dambowy
  • Patent number: 10464289
    Abstract: A film is mated with a paper to form a space therebetween. The film is made of plastics material. Separation of the paper from the film can provide access to an article stored in the space provided between the paper and the film.
    Type: Grant
    Filed: May 10, 2013
    Date of Patent: November 5, 2019
    Assignee: Berry Plastics Corporation
    Inventors: Eric Johnson, Paul Z Wolak
  • Patent number: 10363215
    Abstract: An improved polymer delivery system is described which provides polymeric microparticle compositions and porous microparticles formed therefrom. Pore size, pore architecture as well as particle size are also controllable. In some embodiments, both the polymeric microparticle compositions and porous microparticles formed therefrom encapsulate at least one substance, such as a biologic substance (one having biologic activity and/or compatible with a biologic system). The encapsulation occurs prior to polymerization. The amount of substance that is encapsulated may be controlled by the described methods. Said methods do not emply organic solvents. As such, the fabrication occurs in a solvent-free system.
    Type: Grant
    Filed: November 7, 2014
    Date of Patent: July 30, 2019
    Inventors: Elizabeth M. Cosgriff-Hernandez, Robert Scott Moglia
  • Patent number: 10357906
    Abstract: This invention relates to extruded composite materials specifically focusing on the increasing load bearing capacity and the overall strength of composites. Injectable conformable structural core materials are used to replace foam cells inside extruded composite materials thereby increasing the overall load bearing stability and strength. The core materials are tailored to have a desired CTE with respect to the structural materials. The core materials may also incorporate fibers and solid structural fillers for increasing the strength of the composite member. The objective is to enable composite materials to have the highest structural load bearing capability possible so that these technologies can be used as the replacement of wood, in aerospace applications and for other purposes.
    Type: Grant
    Filed: May 19, 2011
    Date of Patent: July 23, 2019
    Assignee: Ecopuro, LLC
    Inventor: William L. Johnson, Sr.
  • Patent number: 10350579
    Abstract: An oxidation catalyst is described for treating an exhaust gas produced by a diesel engine comprising a catalytic region and a substrate, wherein the catalytic region comprises a catalytic material comprising: iron (Fe) or an oxide thereof; a platinum group metal (PGM) selected from the group consisting of (i) platinum (Pt), (ii) palladium (Pd) and (iii) platinum (Pt) and palladium (Pd); and a support material, which is a refractory oxide comprising alumina; wherein the platinum group metal (PGM) and the iron (Fe) or an oxide thereof is each supported on the support material.
    Type: Grant
    Filed: August 29, 2017
    Date of Patent: July 16, 2019
    Assignee: Johnson Matthey Public Limited Company
    Inventor: Mark Robert Feaviour
  • Patent number: 10273610
    Abstract: A method of forming a three dimensional fiber structure is disclosed which comprises the steps of a) providing a starting material which comprises liquid carrier, fibers and binder; b) passing the starting material over a substrate so as to deposit fibers onto the substrate; c) forming a three dimensional fiber matrix; and d) curing the binder. The flow of material onto the substrate may be controlled such that the flow of a starting material over the substrate is chaotic and fibers are laid down in a three dimensional structure containing a high proportion of voids. The preform may be pressurized while moist and is cured under pressure. The fibers may comprise carbon fibers; recycled carbon fiber has been found to be particularly useful. The resulting preform may be stochastic and is suitable for use in ablative and braking applications.
    Type: Grant
    Filed: October 7, 2013
    Date of Patent: April 30, 2019
    Inventors: David Bell, Roy George Price
  • Patent number: 10247349
    Abstract: In a configuration of a method for preventing progression of corrosion in a steel pipe structure according to the present invention, two or more types of liquids 150 are injected, while being mixed, into a steel pipe that constitutes the steel pipe structure, from an opening at one of both ends of the steel pipe, and the inside of the steel pipe is filled with resin foam product (foam product 152) by foam expansion and hardening of the two or more types of liquids.
    Type: Grant
    Filed: July 11, 2016
    Date of Patent: April 2, 2019
    Assignee: Nitto Chemical Co., Ltd.
    Inventors: Kazuhiro Takaishi, Takehiro Miyazawa, Yoshio Tamura, Takuhiko Ohashi, Masashi Suematsu, Osamu Hatsumi, Tadashi Kimura, Makoto Ide, Isao Naganuma, Marco Volpato, Maurizio Corti, Tetsuya Matayoshi, Kouei Miyazato, Shinichi Suzuki, Nobuo Okamura, Kozo Hatsumi, Hiromi Hasegawa
  • Patent number: 10096862
    Abstract: A microporous acid-resistant resin separator has a total pore volume ratio of 55% or more and less than 75%. A negative electrode plate is made of an electrode material containing a bisphenol condensate. Thereby, a lead-acid battery can be obtained, which reduces the softening of a positive electrode material and has excellent low-temperature high rate discharge performance.
    Type: Grant
    Filed: November 10, 2014
    Date of Patent: October 9, 2018
    Assignee: GS Yuasa International Ltd.
    Inventor: Ikumi Motoi
  • Patent number: 9991494
    Abstract: The present invention relates to a composite nano microporous diaphragm for use in lithium ion cells using polyolefin modified with post-crosslinked rubber and manufacturing method thereof. The microporous diaphragm at least comprises a nano microporous diaphragm A layer with a chemical gel content of more than 20%, the microscopic structure thereof is designed to be the rubber material that has been evenly dispersed and has subjected to a post-crosslinking treatment in polyolefin nano microfiber matrix, forming a nano microporous diaphragm of rubber-plastic composite. The nano microporous diaphragm with high strength, thermal cutoff, high temperature resistance, as well as good liquid absorption and swelling and compression elasticity can be applied to lithium ion power cells with high safety and long cycling life.
    Type: Grant
    Filed: July 22, 2011
    Date of Patent: June 5, 2018
    Inventors: Xin Li, Jianhua Li, Wei Chen, Yongjun Jiao, Long Li, Xinjian Deng
  • Patent number: 9887405
    Abstract: Disclosed is a method of preparing a crosslinked polyolefin separator including preparing a silane grafted polyolefin solution using a polyolefin having a weight average molecular weight higher than or equal to 200,000, a diluent, an alkoxy group containing vinylsilane, and an initiator, forming the silane grafted polyolefin solution in a sheet shape and stretching, extracting the diluent from the stretched sheet to produce a porous membrane, and crosslinking the porous membrane in the presence of water, and a crosslinked polyolefin separator.
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: February 6, 2018
    Assignee: LG CHEM, LTD.
    Inventors: Cheon-Il Park, Won-Sik Bae, Bi-Oh Ryu, Kyoung-Min Kim, Heon-Sik Song
  • Patent number: 9757417
    Abstract: A process of preparing a glass comprising: (a) heating a mixture of precursor chemicals to a melt temperature to form a melt, the melt being characterized in that quenching the melt at or above a threshold temperature results in a spinodal phase separation, and quenching the melt below the threshold temperature results in a droplet phase separation; and (b) quenching the melt at or above the threshold temperature in a preheated mold to form the glass composition having the spinodal phase separation.
    Type: Grant
    Filed: October 19, 2016
    Date of Patent: September 12, 2017
    Assignee: Lehigh Universtiy
    Inventors: Himanshu Jain, Roman Holovchak, Matthias M. Falk
  • Patent number: 9748545
    Abstract: The present invention provides a propylene-based resin microporous film which has excellent electrolyte solution retention property, and can provide a lithium ion battery in which a decrease in discharge capacity is highly reduced even after repeated charge and discharge. The propylene-based resin microporous film is a propylene-based resin microporous film having micropores, wherein a propylene-based resin having a weight average molecular weight of 250,000 to 500,000, a melting point of 160 to 170° C., and a pentad fraction of 96% or more is contained, the surface aperture ratio is 27 to 42%, the ratio of a surface aperture ratio to a porosity is 0.6 or less, and the degree of gas permeability is 50 to 400 s/100 mL.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: August 29, 2017
    Inventors: Shotaro Kobaru, Yuki Sakurai
  • Patent number: 9656900
    Abstract: Provided herein are methods for preparing nano-macroporous glass articles, such as bioscaffolds, from starting materials such as phosphosilicate glasses made by melt-quench methods, mixed with a soluble pore former such as a sugar, followed by steps of dissolving, heating, and leaching to yield a glass composition having a highly interconnected system of both macropores and large scale nanoporosity.
    Type: Grant
    Filed: January 26, 2012
    Date of Patent: May 23, 2017
    Assignee: Lehigh University
    Inventors: Himanshu Jain, Hassan Mohamady Mohamed Moawad
  • Patent number: 9637722
    Abstract: A polyurethane porous membrane is produced by a simple method to be used for at least one of applications of cell culture and cancer cell growth inhibition. The production method of the polyurethane porous membrane to be used for at least one of the applications of cell culture and cancer cell growth inhibition comprises: a first step of forming a layer of a polyurethane material which is uncured, on a substrate; and a second step of supplying water vapor to an exposed surface of the layer of the polyurethane material formed on the substrate, which is away from the substrate, so as to cure the polyurethane material and provide the layer of the polyurethane material with a porous structure having a plurality of irregularities on the exposed surface.
    Type: Grant
    Filed: July 1, 2014
    Date of Patent: May 2, 2017
    Assignees: TOYODA GOSEI CO., LTD., National University Corporation Yamagata University
    Inventors: Seitaro Taki, Hisashi Mizuno, Hiroyuki Nakagawa, Toshiyuki Hagiyama, Atsuki Yoshimura, Masaru Tanaka, Ayano Sasaki, Toshifumi Takahashi, Tsuyoshi Ohta
  • Patent number: 9563048
    Abstract: A microscope includes an illuminating optical system that illuminates the test object under predetermined illumination conditions, an imaging optical system that forms an image of the test object, and an image sensor that outputs an image signal. A computer includes an image analyzing unit that acquires an image feature amount of the test object on the basis of the image signal detected by the image sensor, a comparison unit that compares the image feature amount of the test object with image feature amounts of a plurality of sample test objects and specifies an image feature amount of a sample test object closest to the image feature amount of the test object, and a setting unit that sets illumination conditions of the illuminating optical system on the basis of an illumination state suitable for observation of a sample test object having the image feature amount specified by the comparison unit.
    Type: Grant
    Filed: January 31, 2012
    Date of Patent: February 7, 2017
    Assignee: Nikon Corporation
    Inventors: Naoki Fukutake, Shinichi Nakajima, Hirohisa Taira
  • Patent number: 9546253
    Abstract: The present invention relates to a method for producing a polyolefin porous film, the method including the steps of: (a) melt-kneading a solution containing a polyolefin having a weight average molecular weight of 500,000 or more and a solvent to obtain a kneaded product; (b) extruding and cooling the kneaded product to obtain a gel-like molded product; (c) drawing the gel-like molded product to obtain a drawn sheet; (d) removing the solvent from the drawn sheet, followed by drying to obtain a film in which fine pores are formed; (e) conducting heat treatment, while fixing the film in both directions of a MD and a TD thereof and drawing the film at a draw ratio of exceeding 0% to less than 0.1% in at least one direction of the MD and the TD thereof; and (f) conducting heat treatment while decreasing a width of the film in at least one direction of the MD and the TD of the film.
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: January 17, 2017
    Inventors: Shunsuke Noumi, Kouji Tadokoro, Yoshihiko Kondou, Masatoshi Kawamura
  • Patent number: 9486745
    Abstract: Provided is a semipermeable membrane having at least a separating functional layer, wherein azo compounds are retained in the separating functional layer, and the separating functional layer has a yellow index of 10 to 40. Also provided is a method of producing the semipermeable membrane. The present invention provides a semipermeable membrane having not only high water permeability but also high rejection performance even for substances that are nondissociative in the neutral range, such as boric acid, and showing high durability and a manufacturing method therefor.
    Type: Grant
    Filed: December 20, 2010
    Date of Patent: November 8, 2016
    Inventors: Kentaro Takagi, Tomoko Mitsuhata, Takao Sasaki, Takeharu Inoue, Takashi Yoshino, Kiyohiko Takaya, Yutaro Suzuki
  • Patent number: 9429428
    Abstract: A method for fabricating an environmentally robust micro-wineglass gyroscope includes the steps of stacking and bonding of at least an inner glass layer and an outer glass layer to a substrate wafer; plastically deforming the inner glass layer into a mushroom-shaped structure and deforming the outer glass layer into a shield capable of extending over the inner glass layer, while leaving the inner and outer glass layers connectable at a central post location; removing the substrate layer and a portion of the inner glass layer so that a perimeter of the inner glass layer is free; and bonding the deformed inner and outer glass layers to a handle wafer. The resulting structure is an environmentally robust micro-wineglass gyroscope which has a double ended supported central post location for the mushroom-shaped structure of the inner glass layer.
    Type: Grant
    Filed: September 2, 2015
    Date of Patent: August 30, 2016
    Assignee: The Regents of the University of California
    Inventors: Andrei Shkel, Doruk Senkal
  • Patent number: 9331353
    Abstract: The present invention relates to a membrane that includes a porous polymer material made of a polyimide with interconnected macropores and impregnated with protic ionic liquid conductors (CLIP), as well as to the method for manufacturing same and to the uses thereof. The membranes of the invention fulfill the need for membranes including CLIPs, which have good proton-conducting properties as well as good physical properties, in particular high thermal and mechanical stability, in addition to a wide range of electrochemical stability.
    Type: Grant
    Filed: November 29, 2011
    Date of Patent: May 3, 2016
    Assignees: Universite De Rouen, Institut Polytechnique De Grenoble, Centre National De La Recherche Scientifique—CNRS
    Inventors: Corinne Chappey, Sema Karademir, Quang Trong Nguyen, Dominique Langevin, Stephane Marais, Regis Mercier, Mathieu Martinez, Cristina Iojoiu, Jean-Ives Sanchez
  • Patent number: 9259522
    Abstract: A dialysis supply system that includes a central dialysis liquid manufacturing unit, a dialysis treatment unit, a valve arrangement, and a hydraulic module.
    Type: Grant
    Filed: January 10, 2012
    Date of Patent: February 16, 2016
    Assignee: Fresenius Medical Care Deutschland GmbH
    Inventors: Wolfgang Wehmeyer, Dietmar Köhler, Matthias Brandl, Benedict Glaser
  • Patent number: 9180227
    Abstract: Methods are disclosed for controlling the morphology and the release-rate of active agent from coating layers for medical devices comprising a polymer matrix and one or more active agents. The methods comprise fixing the morphology or phase distribution of the active agent prior to removing solvent from the coating composition. The coating layers can be used for controlled the delivery of an active agent or a combination of active agents.
    Type: Grant
    Filed: October 15, 2013
    Date of Patent: November 10, 2015
    Assignee: Advanced Cardiovascular Systems, Inc.
    Inventors: Florian N. Ludwig, Syed F. A. Hossainy, Srinivasan Sridharan, Carol Lee
  • Patent number: 9156006
    Abstract: One aspect of the invention relates to customized thin-film composite membranes comprising: a porous support; a selective barrier; and one or more polymeric additives dispersed in the porous support in an amount from at least about 1% and about 50% by weight of the porous support. Another aspect of the invention relates to a method of fabricating a porous support comprising the steps of: preparing a polymer solution comprising a polymer, a polymeric additive, and a first liquid; contacting a surface with the polymer solution; and evaporating the liquid. Another aspect of the invention relates to the use of the thin-film composite membranes disclosed herein in osmotically driven membrane processes.
    Type: Grant
    Filed: December 3, 2010
    Date of Patent: October 13, 2015
    Assignee: Yale University
    Inventors: Ngai Yin Yip, William Anthony Phillip, Jessica Deborah Schiffman, Menachem Elimelech
  • Patent number: 9142819
    Abstract: A separator includes a monolayer-type polyolefin-based micro-porous film having a porosity of 40 to 60%, an average pore diameter of 60 nm or less, and an air permeability of 350 s/100 mL or less; and a porous coating layer formed on at least one surface of the micro-porous film and made of a mixture of a plurality of inorganic particles and a binder polymer. An electrochemical device having the above separator has excellent thermal stability and allows a high power while minimizing the occurrence of leak current.
    Type: Grant
    Filed: September 3, 2009
    Date of Patent: September 22, 2015
    Assignee: LG CHEM, LTD.
    Inventors: Yoon-Jung Bae, In-Chul Kim, Seung-Taek Hong, Jong-Hwan Kim, Han-Ho Lee
  • Patent number: 9138690
    Abstract: It is an objective of the present invention to provide a method for producing an air-permeable composite sheet which has excellent mechanical strength and compression resistance as well as PTFE's innate property such as air-permeability, water repellency, heat resistance and chemical resistance; and a filter and a fabrics material containing the air-permeable composite sheet produced by the method as a constituent material. The method for producing an air-permeable composite sheet according to the present invention is characterized in comprising steps of filling pores of a porous PTFE sheet with a hardenable material solution; hardening or semi-hardening the porous PTFE sheet filled with the hardenable material solution; and expanding the hardened or semi-hardened porous PTFE sheet.
    Type: Grant
    Filed: October 16, 2009
    Date of Patent: September 22, 2015
    Assignee: W. L. Gore & Associates, Co., Ltd.
    Inventor: Hiroshi Manabe
  • Patent number: 9062022
    Abstract: A biocompatible polymer composition suited to forming a dialysis membrane includes a matrix material and at least one xanthone. The composition may be formed into a membrane for inserting into a dialyzer filter whereby free radicals in the fluid are removed by the membrane.
    Type: Grant
    Filed: December 1, 2009
    Date of Patent: June 23, 2015
    Assignee: The University of Akron
    Inventors: Thein Kyu, Neelakandan Chandrasekaran
  • Patent number: 9056960
    Abstract: A method of thermally insulating a transport means or an industrial or plant construction comprises obtaining a nanoporous foam (NP1) by reacting epoxy resin(s) (E) with amphiphilic epoxy resin hardener(s) (H) in water by a phase inversion polymerization wherein the binder content during polymerization is from 15% to 39.9% by weight, and installing the nanoporous polymer foam as a thermal insulation material in transport means or in an industrial or plant construction.
    Type: Grant
    Filed: February 18, 2011
    Date of Patent: June 16, 2015
    Assignee: Cognis IP Management GmbH
    Inventors: Paul Birnbrich, Hans-Josef Thomas, Dagmar Stahlhut-Behn
  • Patent number: 9050579
    Abstract: The method relates to the fabrication of a polymer microspheres comprised of an asymmetric layer surrounding a hollow interior. The fabricated hollow microsphere is generated from a nascent hollow microsphere comprised of an inner core of core fluid surrounded by a dope layer of polymer dope, where the thickness of the dope layer is at least 10% and less than 50% of the diameter of the inner core. The nascent hollow microsphere is exposed to a gaseous environment, generating a vitrified hollow microsphere, which is subsequently immersed in a coagulation bath. Solvent exchange produces a fabricated hollow microsphere comprised of a densified outer skin surrounding a macroporous inner layer, which surrounds a hollow interior. In an embodiment, the polymer is a polyimide or a polyamide-imide, and the non-solvent in the core fluid and the coagulation bath is water. The fabricated hollow microspheres are particularly suited as solvent supports for gas separation processes.
    Type: Grant
    Filed: September 18, 2012
    Date of Patent: June 9, 2015
    Assignee: U.S. Department of Energy
    Inventors: Shan Wickramanayake, David R. Luebke
  • Patent number: 9050390
    Abstract: A kneadable and moldable bone-replacement material includes a mixture of calcium-containing ceramic particles and a hydrogel or a substance which can be swelled into a hydrogel. The ceramic particles are of fully synthetic origin and the individual ceramic particles have a structure which is at least partially cohesive and porous. In addition, the majority of the ceramic particles have a non-spheric shape.
    Type: Grant
    Filed: December 9, 2013
    Date of Patent: June 9, 2015
    Assignee: DePuy Synthes Products, LLC
    Inventors: Giancarlo Rizzoli, Thierry Stoll, Reto Luginbuhl, Marc Bohner
  • Patent number: 9049771
    Abstract: Disclosed is a charge-transporting material comprising a heteropoly acid compound such as phosphomolybdic acid as a charge-transporting substance. Also disclosed is a charge-transporting varnish comprising the charge-transporting material and an organic solvent, wherein the charge-transporting substance is dissolved in the organic solvent. It becomes possible to provide a charge-transporting material which comprises a substance having high solubility in an organic solvent, charge-transporting properties, and an ability to oxidize hole transport materials, and a charge-transporting varnish comprising the charge-transporting material.
    Type: Grant
    Filed: November 18, 2009
    Date of Patent: June 2, 2015
    Inventors: Takuji Yoshimoto, Tomohisa Yamada
  • Patent number: 9040598
    Abstract: A thermoplastic composition that contains a rigid renewable polyester and has a voided structure and low density is provided. To achieve such a structure, the renewable polyester is blended with a polymeric toughening additive to form a precursor material in which the toughening additive can be dispersed as discrete physical domains within a continuous matrix of the renewable polyester. The precursor material is thereafter stretched or drawn at a temperature below the glass transition temperature of the polyester (i.e., “cold drawn”). This creates a network of voids located adjacent to the discrete domains, which as a result of their proximal location, can form a bridge between the boundaries of the voids and act as internal structural “hinges” that help stabilize the network and increase its ability to dissipate energy. The present inventors have also discovered that the voids can be distributed in a substantially homogeneous fashion throughout the composition.
    Type: Grant
    Filed: February 10, 2012
    Date of Patent: May 26, 2015
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Neil T. Scholl, Ryan J. McEneany, Thomas A. Eby, Vasily A. Topolkaraev
  • Publication number: 20150128528
    Abstract: An apparatus and method for multi-stage printing teaches a 3D printer in combination with one or more additional dispensing nozzles. One or more additional dispensing nozzles are combined with the 3D for filling cavities with other compounds such as foam, sterilizing parts by spraying printed mold with disinfectant or antibacterial treatments, and embedding parts or other materials such as paper, fiberglass, or carbon fiber within the printing layers for additional strength and changing mold properties of a final product. In other embodiments, the apparatus of the present invention can be used in combination with a robotic packaging mechanism for bagging sterilized parts for shipment.
    Type: Application
    Filed: November 12, 2014
    Publication date: May 14, 2015
    Inventors: Alberto Daniel Lacaze, Karl Nicholas Murphy
  • Publication number: 20150126663
    Abstract: A resin composition [composition (C)] comprising: from 40 to 95% by volume (% v) of at least one aromatic polyimide [polymer (PI)], from 0.1 to 15% by volume (% v) of at least one compound having the general formula AnXm [compound (AnXm)], wherein each A is independently selected from a group consisting of a metal atom (M) which is selected from the group consisting of Fe, Co, Ni, Cu, Zn, Mo, Ag, Cd, Sn, Pt, Au, Hg, Pb and Tl and a semimetal atom (SM) which is selected from the group consisting of As, Sb and Bi; wherein each X is independently selected from a group consisting of As, Sb, S, Se and Te; with the proviso that when A is As or Sb then X is different from A; and wherein n and m equal or different from each other, are independently 1, 2, 3 and 4, from 0.
    Type: Application
    Filed: May 16, 2013
    Publication date: May 7, 2015
    Inventors: Thomas Burkhart, Rolf Walter, Hans-Peter Feldner, Yuhong Wu, Geoffrey Scott Underwood, Brian A. Stern
  • Patent number: 9011738
    Abstract: Monomer beads which can be obtained according to a process in which i. one or more aromatic tetraamino compounds are mixed with one or more aromatic carboxylic acids comprising at least two acid groups per carboxylic acid monomer in an extruder and melted at 190° C.-270° C.; ii. the melt is dropletized at 190° C.-270° C. by means of a die located at the extruder outlet; iii. the liquid droplets are collected, cooled and allowed to solidify. The monomer beads are particularly suited to the production of a proton-conducting polymer membrane based on polyazoles.
    Type: Grant
    Filed: January 14, 2010
    Date of Patent: April 21, 2015
    Assignee: BASF SE
    Inventors: Klaus Leitner, Sameer Nalawade
  • Patent number: 9005496
    Abstract: Asymmetric membranes comprising a first asymmetric porous zone including a first porous asymmetry that increases from the first exterior surface through the first porous zone of the bulk, and a second asymmetric porous zone including a second porous asymmetry that increases from the second exterior surface through the second porous zone of the bulk, wherein the first average pore size is larger than the second average pore size, as well as methods of making and using the membranes, are disclosed.
    Type: Grant
    Filed: February 1, 2012
    Date of Patent: April 14, 2015
    Assignee: Pall Corporation
    Inventors: Xuemei Liang, Mark Murla, Binbing Han, Donald Simonton, Richard Morris
  • Patent number: 8999211
    Abstract: A process for producing porous structures from polyamide by dissolving the polyamide in an ionic liquid and precipitating or coagulating the dissolved polyamide by contacting the solution with a liquid precipitant medium. Fibers are produced from the dissolved polyamide in a wet-spinning process by precipitation in protic solvents, in particular water, a C1-4-alkanol or mixtures thereof, and subsequent freeze-drying. Foils, films or coatings are produced by blade coating the dissolved polyamide onto a substrate surface, optionally spraying with protic solvent, in particular water, a C1-4-alcohol or mixtures thereof, dipping into a precipitation or coagulation bath, freeze-drying of the resulting foil, of the film or of the coated substrate. Molded parts are prepared by extracting the dissolved polyamide with protic solvents, preferably water, a C1-4-alcohol or mixtures thereof, wherein the dissolved polymer is transformed to a solid or wax-like state by cooling and extracted after subsequent molding.
    Type: Grant
    Filed: February 11, 2009
    Date of Patent: April 7, 2015
    Assignee: BASF SE
    Inventors: Stefan Schwiegk, Axel Wilms, Ronald Frans Maria Lange, Michael Siemer, Giovanni D'Andola, Volker Rauschenberger, Frank Hermanutz, Frank Gaehr, Julien Courtois, Dirk Gerhard
  • Patent number: 8993053
    Abstract: There are provided a method of manufacturing a reverse osmosis membrane and a reverse osmosis membrane manufactured thereby. The method includes forming a polysulfone layer by applying a solution including a mixed solvent containing two or more solvents having different solubility parameter values to a surface of a porous support; and forming an active layer on the polysulfone layer.
    Type: Grant
    Filed: September 13, 2013
    Date of Patent: March 31, 2015
    Assignee: LG Chem, Ltd.
    Inventors: Seung-Pyo Jeong, Seung-Yup Lee, Phill Lee, Hye-Jin Kwon, Chong-Kyu Shin
  • Publication number: 20150086730
    Abstract: A polymer sheet includes a polyurethane core. The polyurethane core has a first major surface and a second major surface opposite the first major surface. The polymer sheet can have at least one functional layer overlying a major surface. The polymer sheet has a thickness tPS. The polyurethane core has a thickness tPC. In embodiments tPC can at least 0.3 of tPS. The polyurethane core can have at least one feature selected from the group: (i) an elasticity as measured according to the Thin Gauge Elasticity Test of not more than 30%, (ii) a loss of tensile strength of not greater than 30% when exposed to UV light according to standard SAE J1960 (Rev. August 2003), (iii) a thickness of polyurethane core tPC of not greater than 0.2 mm, (iv) an elongation at break of at least 200%, and (v) a tensile strength at break of at least 0.3 MPa.
    Type: Application
    Filed: September 19, 2014
    Publication date: March 26, 2015
    Inventors: Jing Guan, Yue Dong, Georges Moineau
  • Publication number: 20150072093
    Abstract: Thermoplastic compositions are described that exhibit resistance to hydrocarbon absorption. Methods for forming the thermoplastic compositions are also described. Formation methods include combining a polyarylene sulfide with a first impact modifier and a second impact modifier such that the impact modifiers are dispersed throughout the polyarylene sulfide. A crosslinking agent can be combined with the other components of the composition following dispersal of the additives throughout the composition to dynamically crosslink at least one of the first and second impact modifiers.
    Type: Application
    Filed: August 25, 2014
    Publication date: March 12, 2015
    Inventors: Bin Zhang, Rong Luo, Xiaoyan Tu
  • Patent number: 8960448
    Abstract: A two-layered osmosis membrane contains a support layer and a rejection layer. The support layer, in which a mesh is embedded, is made of a phase separation polymer and has a thickness of 50 to 200 ?m. The rejection layer, which adheres to the support layer, is made of a thin film composite polymer and has a thickness of 0.05 to 3 ?m. The mesh, which is embedded in the support layer, has an open area of 30 to 70%, a mesh size of 60-300 mesh, and a thickness of 45-150 ?m. Also disclosed is a method of making the above described membrane.
    Type: Grant
    Filed: December 26, 2012
    Date of Patent: February 24, 2015
    Assignee: National University of Singapore
    Inventors: How Yong Ng, Wei Duan
  • Publication number: 20150045909
    Abstract: A method of making a creep resistant, highly lubricious, tough hydrogel includes the steps of preparing a first solution including polyacrylamide-co-acrylic acid and another polymer, such as polyvinyl alcohol), and introducing a second solution a gellant into the first solution to form the hydrogel. The first solution can be heated to a first temperature above room temperature, and the combination of the first solution and the second solution can be cooled to a second temperature at or below room temperature. The hydrogel can be used for cartilage repair or in an interpositional device that requires mechanical integrity, high water content, and excellent lubricity in order to fully function under the high stress environment in the joint space and withstand high loads of human joints.
    Type: Application
    Filed: February 22, 2012
    Publication date: February 12, 2015
    Inventors: Orhun K. Muratoglu, Hatice Bodugoz-Senturk
  • Publication number: 20150045468
    Abstract: A foam-molded article has high weldability to a polypropylene-based resin molded article, a high expansion ratio, and a predetermined level of impact resistance despite using inexpensive polyethylene-based resin. The foam-molded article includes a foamed and molded base material resin in which a first polyethylene-based resin, a second polyethylene-based resin, and a polypropylene-based resin are mixed. The first polyethylene-based resin has a long-chain branched structure and a density of 0.920 g/cm3 or more. The second polyethylene-based resin is manufactured by a low pressure slurry method, and has a long-chain branched structure and a density of 0.920 g/cm3 or less. The second polyethylene-based resin has a melt tensile force of 70 mN or more at 160° C. The polypropylene-based resin has a compounding ratio of 20% or more by weight of the base material resin.
    Type: Application
    Filed: January 22, 2013
    Publication date: February 12, 2015
    Applicant: KYORAKU CO., LTD.
    Inventor: Masaaki Onodera
  • Publication number: 20150035191
    Abstract: The invention relates generally to cast metal molds that are used in the manufacture of polymer parts, and more specifically, to methods tier sealing cast metal molds used in the manufacture of polymer parts. One embodiment of the present technique relates to a cast metal mold having a sealant disposed within the pores on the surface of a mold cavity such that the sealant is configured to seal the surface of the mold cavity to produce a sealed surface. The sealed surface is blocked from absorbing or releasing gases during the production of a polymer part. The mold further includes a surface coating to facilitate the release of a product from the mold cavity. The surface coating includes a fluoropolymer base layer, which configured to adhere to the sealed surface of the mold cavity.
    Type: Application
    Filed: January 4, 2013
    Publication date: February 5, 2015
    Inventor: James Thomas McEvoy