Producing A Tubular Product Patents (Class 264/563)
  • Patent number: 8865038
    Abstract: A double-sided, slip resistant material is produced using a blown film process which produces a film having an interior heat sealable layer, a core layer of flexible polyolefin and an exterior polyolefin elastomer layer in combination with a blowing agent and optionally grit to produce a double-sided slip resistant material. A number of rollers may be provided after nip rollers have fused the film together, and which form part of a machine direction orienter (MDO) that may be used in line in the manufacturing process to heat, and then cool and condition (anneal and relieve any stresses and/or thickness inconsistencies in the film) prior to the film being wound onto a roll for storage.
    Type: Grant
    Filed: July 9, 2013
    Date of Patent: October 21, 2014
    Assignee: Multi Technologies Industrial L.L.C.
    Inventors: George M. Orlych, Mike C. Sullivan
  • Patent number: 8834780
    Abstract: A polymer fiber is formed by hydrodynamic spinning. Fluids are forced to flow through a conduit to form a laminar flow comprising three or more layers of generally coaxial fluid flows, at respective flow rates selected to define a cross-section of a tubular middle layer of the fluid flows. The middle layer comprises a cross-linkable polymer precursor. Another layer of the fluid flows comprise a cross-linking agent. The polymer precursor, cross-linking agent and fluids are selected to prevent substantial diffusion of the polymer precursor away from the middle layer, and to allow a portion of the cross-linking agent to diffuse from the another layer into the middle layer to facilitate cross-linking of the polymer precursor in the middle layer to form a tubular polymer layer in a polymer fiber. The polymer layer thus has a cross-section generally corresponding to the cross-section of the middle layer.
    Type: Grant
    Filed: March 2, 2009
    Date of Patent: September 16, 2014
    Assignee: Agency for Science, Technology and Research
    Inventors: Jackie Y. Ying, Min Hu, Rensheng Deng, Karl Schumacher, Motoichi Kurisawa
  • Patent number: 8778256
    Abstract: Methods of manufacturing a medical article that include radial deformation of a polymer tube are disclosed. A medical article, such as an implantable medical device or an inflatable member, may be fabricated from a deformed tube.
    Type: Grant
    Filed: September 30, 2004
    Date of Patent: July 15, 2014
    Assignee: Advanced Cardiovascular Systems, Inc.
    Inventors: Bin Huang, Jonathan P. Durcan
  • Patent number: 8734695
    Abstract: An endoscope flexible tube comprises: a tubular structure having flexibility; and a shell layer on an outer peripheral surface of the tubular structure, wherein the shell layer has a two-layer structure including a rigid resin layer of a rigid resin and a soft resin layer of a soft resin, and wherein the two-layer structure is maintained over the entire flexible tube in its length direction.
    Type: Grant
    Filed: August 28, 2008
    Date of Patent: May 27, 2014
    Assignee: Fujinon Corporation
    Inventors: Atsushi Yago, Nobuharu Takahashi, Yoshiyuki Yoshimoto, Rei Miyasaka
  • Patent number: 8734710
    Abstract: A biopolymer blown film extrusion system comprising an extruder receiving polymer pellets and at least two additives, and generating a molten mass having at least one layer; a die receiving the molten extrudates and generating a bubble having at least one layer from a die orifice; an internal bubble blower operably connected to maintain air inside the bubble; a bubble collapsing frame receiving the bubble and generating a biopolymer film having at least one layer, the film having a selected elongation at break of 180% or more in one direction and heat sealing at 195° F. or less; a nip roller operably connected to draw the biopolymer film from the bubble collapsing frame; a turning bar operably connected to change a travel angle of the biopolymer film; and a travel roller operably connected to direct travel of the biopolymer film.
    Type: Grant
    Filed: April 29, 2011
    Date of Patent: May 27, 2014
    Inventors: Paul Georgelos, Pat Montefusco, Roy Speer, Jeanne M. Skaggs, James J. Sanfilippo
  • Patent number: 8715564
    Abstract: Methods and systems for manufacturing an implantable medical device, such as a stent, from a tube with desirable mechanical properties, such as improved circumferential strength and rigidity, are described herein. Improved circumferential strength and rigidity may be obtained by inducing molecular orientation in materials for use in manufacturing an implantable medical device. Methods of inducing circumferential molecular orientation by inducing circumferential flow in a molten polymer are disclosed.
    Type: Grant
    Filed: May 3, 2012
    Date of Patent: May 6, 2014
    Assignee: Advanced Cardiovascular Systems, Inc.
    Inventors: Bin Huang, Stephen Schaible, Richard Kaufman, Jim Kennedy, David C. Gale, Suresh Amin, John Guardiano
  • Patent number: 8658071
    Abstract: A method for enabling a lining (14) to be applied to a pipe elbow or bend C comprises the steps of connecting a tie member (12) to an end of a flexible elongate mandrel (1), drawing the tie member through the elbow or bend so as to draw the mandrel therethrough and locate opposing ends of the mandrel adjacent to opposing respective ends of the elbow or bend, and securing the mandrel ends in relation to the respective ends of the elbow or bend. The mandrel can be adapted to the elbow or bend by locating the elbow or bend in a given orientation and deriving a profile S of the elbow or bend while in that orientation, removing the elbow or bend and then locating the mandrel in the given orientation, and adjusting the mandrel in relation to the profile of the elbow or bend to adapt it thereto.
    Type: Grant
    Filed: December 22, 2008
    Date of Patent: February 25, 2014
    Assignee: Weir Vulco, S.A.
    Inventors: Ricardo Abarca Melo, Wilfredo San Martin Cisterna, Jaime Ramirez Toledo
  • Patent number: 8632706
    Abstract: A single-sided, slip resistant, self-adhesive material is produced using a blown film process which produces a film having an interior layer capable of being treated or coated to accept a pressure sensitive adhesive, a middle layer of flexible polyolefin and an exterior polyolefin elastomer layer in combination with a blowing agent to produce a single-sided slip resistant material. A number of in-line rollers are provided after a pair of rollers, which form part of a machine direction orienter (MDO) that is used in line in the manufacturing process to heat, and then cool and condition (anneal and relieve any stresses and/or thickness inconsistencies) the film prior to the film being coated on one side with a pressure sensitive adhesive.
    Type: Grant
    Filed: August 15, 2011
    Date of Patent: January 21, 2014
    Assignee: Multi Technologies Instustrial L.L.C.
    Inventors: George M. Orlych, Michael C. Sullivan, Thomas Zickell
  • Patent number: 8585947
    Abstract: A process for manufacturing a composite block of closed geometry, in the form of a continuous ring, based on fibers and on a crosslinkable resin, by continuous winding and superposition of several layers of a tape of reinforcement fibers embedded in a matrix based on a composition comprising a crosslinkable resin. The process comprises from upstream to downstream, the following steps: producing a rectilinear arrangement (12) of reinforcement fibers (11) and conveying this arrangement in a feed direction (F); degassing the arrangement (12) of fibers by the action of a vacuum (13); after degassing, impregnating said arrangement (12) of fibers under vacuum with said resin composition in the liquid state (17); passing the pre-preg thus obtained through a die (20) to make said pre-preg into the form of a tape (21) composed of reinforcement fibers (11) in their liquid resin (17) matrix, the thickness of said tape being less than 0.
    Type: Grant
    Filed: January 23, 2007
    Date of Patent: November 19, 2013
    Assignee: Michelin Recherche et Technique S.A.
    Inventors: Jean-Paul Meraldi, Antonio Delfino
  • Publication number: 20130220119
    Abstract: A composition of and a method of making high performance crosslinked membranes are described. The membranes have a high resistance to plasticization by use of crosslinking. The preferred polymer material for the membrane is a polyimide polymer comprising covalently bonded ester crosslinks. The resultant membrane exhibits a high permeability of CO2 in combination with a high CO2/CH4 selectivity. Another embodiment provides a method of making the membrane from a monesterified polymer followed by final crosslinking after the membrane is formed.
    Type: Application
    Filed: March 11, 2013
    Publication date: August 29, 2013
    Applicant: Chevron U.S.A. Inc.
    Inventors: William J. Koros, David Wallace, John D. Wind, Stephen J. Miller, Claudia Staudt-Bickel
  • Patent number: 8512627
    Abstract: The present invention provides a method for the production of a poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) asymmetric hollow fiber membrane. The invention comprises preparing a dope solution of PVDF-HFP with an additive of lithium chloride or glycerol dissolved in a solvent such as N-methylpyrollidone (NMP). The dope solution is spun to form a PVDF-HFP asymmetric hollow fiber membrane.
    Type: Grant
    Filed: February 4, 2009
    Date of Patent: August 20, 2013
    Assignee: Nanyang Technological University
    Inventors: Rong Wang, David Tee Liang, Joo Hwa Tay
  • Patent number: 8480836
    Abstract: A double-sided, slip resistant material is produced using a blown film process which produces a film having an interior heat sealable layer, a core layer of flexible polyolefin and an exterior polyolefin elastomer layer in combination with a blowing agent and optionally grit to produce a double-sided slip resistant material. A number of rollers are provided after nip rollers have fused the film together, and which form part of a machine direction orienter (MDO) that is used in line in the manufacturing process to heat, and then cool and condition (anneal and relieve any stresses and/or thickness inconsistencies in the film) prior to the film being wound onto a roll for storage.
    Type: Grant
    Filed: January 18, 2010
    Date of Patent: July 9, 2013
    Assignee: Multi Technologies Industrial L.L.C.
    Inventors: George M. Orlych, Mike C. Sullivan
  • Patent number: 8449800
    Abstract: A preventative maintenance method of strengthening the connection between high pressure, in situ piping. An encapsulation mold is installed over a properly functioning, non-leaking coupling or joint interconnecting pipe sections carrying gas in excess of 60 psi. A resin sealant having tensile strength in excess of 3000 psi fills the mold, so that it circumscribes the coupling and adjacent portions of the pipe sections extending from the coupling, forming a permanent bond to the coupling and pipe sections. The method prevents high pressure pipe connection pullout, which otherwise could lead to catastrophic failure.
    Type: Grant
    Filed: February 18, 2011
    Date of Patent: May 28, 2013
    Inventor: Howard Hardwick
  • Patent number: 8445619
    Abstract: Process for making a film or pipe by compounding an uncompounded polyolefin powder having a particle size distribution such that D95 is less than 355 ?m and (D90?D10)/D50 is less than 1.2, where D95, D90, D50 and D10 are defined such that 95 wt %, 90 wt %, 50 wt % or 10 wtl % of the polymer particles have a diameter of less than D95, D90, D50 and D10 respectively, to form pellets; and then forming the pellets into a film or pipe.
    Type: Grant
    Filed: October 31, 2011
    Date of Patent: May 21, 2013
    Assignee: Ineos Manufacturing Belgium NV
    Inventors: Thomas F. Ameye, Andre Frederich, Dominique Jan
  • Patent number: 8414814
    Abstract: A biodegradable polymer stent with radiopacity and a method of making and using a stent with enhanced mechanical strength and/or controlled degradation for use in a bodily lumen is described.
    Type: Grant
    Filed: October 4, 2010
    Date of Patent: April 9, 2013
    Assignee: Biosensors International Group, Ltd.
    Inventors: Shih-Horng Su, Debashis Dutta
  • Patent number: 8377354
    Abstract: The invention relates to a method of producing a film comprising at least one layer of a thermoplastic fluoro-polymer and at least one layer of another polymer (A). The inventive method consists in using extrusion blow molding to coextrude a fluoro-polymer and polymer (A) which adhere to one another; with a layer of another thermoplastic polymer (B) such that it forms a layer which is adjacent to the fluoropolymer/polymer (A) layer According to the invention, the thermoplastic polymer (B) is incompatible with the fluoro-polymer and polymer (A) and has adequate extrudate behavior to support the layers of fluoro-polymer and/or polymer (A). Once the coextrudate has been cooled, by separating the layer(s) of (B), at least the film is recovered, said film comprising at least one layer of a polymer selected from among thermoplastic fluoro-polymers and polymers (A).
    Type: Grant
    Filed: October 11, 2002
    Date of Patent: February 19, 2013
    Assignee: Arkema France
    Inventors: David Silagy, Gérard Reignier, Philippe Bussi
  • Patent number: 8343414
    Abstract: A process and apparatus for multi-shot, liquid-resin-molding of continuous-fiber composite articles is disclosed. The process involves the step-wise fabrication of an article wherein continuity of the fibers is maintained between the multiple workpieces of the finished composite article.
    Type: Grant
    Filed: July 18, 2011
    Date of Patent: January 1, 2013
    Assignee: Lockheed Martin Corporation
    Inventors: Alan K. Miller, Stephen L. Bailey, Theodore Rosario, Jr.
  • Patent number: 8337731
    Abstract: A dry fabric seal for use with tooling for liquid resin molding processes and a method for creating the seal are disclosed. In the illustrative embodiment, the seal comprises an annular resin reservoir, a level of resin within the reservoir, a device for controlling the resin level, and a perforated pressure plate that forms one wall of the reservoir. The seal is created by controlling the level of resin between the tooling (e.g., the inner and outer molds, etc.) so that air cannot leak in (for vacuum processes) or out (for pressurized processes) between the fibers in the fabric near the top of the molds.
    Type: Grant
    Filed: June 15, 2009
    Date of Patent: December 25, 2012
    Assignee: Lockheed Martin Corporation
    Inventors: Alan K. Miller, Stephen L. Bailey
  • Patent number: 8286549
    Abstract: An apparatus for stuffing a pasty food that includes an applicator sleeve arranged between the inlet end and the outlet end of a stuffing tube. At least a portion of the applicator sleeve surrounds the stuffing tube about part or its complete circumference and the applicator sleeve supplies one or more strips coated and/or impregnated with transferable additives to the stuffing tube, with the strips being ultimately applied to the pasty food. The innovation further relates to a foodstuff in a tubular casing (e.g. sausage skin), in which at least one strip is arranged between the foodstuff and the surrounding casing, the strip being coated and/or impregnated with at least one transferable additive.
    Type: Grant
    Filed: October 14, 2009
    Date of Patent: October 16, 2012
    Assignee: Kalle GmbH
    Inventors: Dirk Auf Der Heide, Martina Koenig
  • Patent number: 8246899
    Abstract: A device and a process are employed to prepare sheets from a film tube. The process steps include extruding the film tube, laying the film tube flat and squeezing it, reversing the film tube, and cutting the extruded film tube. The film tube is cut before the squeezing step and at least one resulting sheet runs through only one reversing device before the sheet is fed to a stationary processing device or storage device.
    Type: Grant
    Filed: June 22, 2010
    Date of Patent: August 21, 2012
    Assignee: Windmoeller & Hoelscher KG
    Inventor: Frank Bosse
  • Patent number: 8192678
    Abstract: Methods and systems for manufacturing an implantable medical device, such as a stent, from a tube with desirable mechanical properties, such as improved circumferential strength and rigidity, are described herein. Improved circumferential strength and rigidity may be obtained by inducing molecular orientation in materials for use in manufacturing an implantable medical device. Some embodiments may include inducing molecular orientation by expansion of a molten annular polymer film. Other embodiments may include inducing circumferential molecular orientation by inducing circumferential flow in a molten polymer. In certain embodiments, circumferential orientation may be induced by expansion of a polymer tube. Further embodiments may include manufacturing an implantable medical device from a biaxially oriented planar polymer film.
    Type: Grant
    Filed: August 19, 2010
    Date of Patent: June 5, 2012
    Assignee: Advanced Cardiovascular Systems, Inc.
    Inventors: Bin Huang, Stephen Schalble, David C. Gale
  • Patent number: 8025834
    Abstract: A process and apparatus for multi-shot, liquid-resin-molding of continuous-fiber composite articles is disclosed. The process involves the step-wise fabrication of an article wherein continuity of the fibers is maintained between the multiple workpieces of the finished composite article.
    Type: Grant
    Filed: June 15, 2009
    Date of Patent: September 27, 2011
    Assignee: Lockheed Martin Corporation
    Inventors: Alan K. Miller, Stephen L. Bailey, Theodore Rosario, Jr.
  • Patent number: 8007700
    Abstract: An electric cable for conveying signals, the cable having a diameter of less than 2 mm and comprising at least one conductor in an insulating sheath, the sheath having a dielectric constant ? of less than 1.7. To achieve this, the sheath is made of PTFE and it includes at least one continuous cell.
    Type: Grant
    Filed: August 1, 2008
    Date of Patent: August 30, 2011
    Assignee: Axon'Cable
    Inventor: Sophie Perez
  • Publication number: 20110079941
    Abstract: Methods and systems for manufacturing an implantable medical device, such as a stent, from a tube with desirable mechanical properties, such as improved circumferential strength and rigidity, are described herein. Improved circumferential strength and rigidity may be obtained by inducing molecular orientation in materials for use in manufacturing an implantable medical device. Some embodiments may include inducing molecular orientation by expansion of a molten annular polymer film. Other embodiments may include inducing circumferential molecular orientation by inducing circumferential flow in a molten polymer. In certain embodiments, circumferential orientation may be induced by expansion of a polymer tube. Further embodiments may include manufacturing an implantable medical device from a biaxially oriented planar polymer film.
    Type: Application
    Filed: August 19, 2010
    Publication date: April 7, 2011
    Inventors: Bin Huang, Stephen Schaible, Richard Kaufman, Jim Kennedy, David C. Gale, Suresh Amin, John Guardiano
  • Publication number: 20110028622
    Abstract: Disclosed are blown films prepared from poly(hydroxyalkanoic acid) compositions comprising a poly(hydroxyalkanoic acid), an ethylene ester copolymer, and a nucleator.
    Type: Application
    Filed: July 28, 2009
    Publication date: February 3, 2011
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventor: JULIUS URADNISHECK
  • Publication number: 20110020574
    Abstract: The present invention’ provides extrusion-processable materials having a plurality of capillary channels therethrough, and apparatus and methods for manufacturing such materials. The capillaries may be occupied by gases, liquids or other phases. The materials may be anisotropic foams which have high voidage. The methods and apparatus include quench cooling (11) of an extrudate (2) as it exits a die (14).
    Type: Application
    Filed: October 9, 2007
    Publication date: January 27, 2011
    Applicant: Cambridge Enterprise Limited
    Inventors: Malcolm R. Mackley, Bart Hallmark
  • Publication number: 20110001276
    Abstract: A device and a process for the preparation of sheets (7, 17) are specified. The following work steps are involved in the preparation of the sheets: extruding a film tube (1) laying the film tube flat and squeezing it (1) reversing the film tube (1) cutting the extruded film tube (1) In addition the invention contains following new characteristics: the film tube (1) is cut before the squeezing follows and at least one resulting sheet (7, 17) runs through (1) only one reversing device (100) before it is fed to a stationary processing device or storage device.
    Type: Application
    Filed: June 22, 2010
    Publication date: January 6, 2011
    Inventor: Frank Bosse
  • Patent number: 7846377
    Abstract: The technical problem of this invention is to establish a method of processing a synthetic resin tube, in which the shape of a part of the tube wall is changed to form easily an attractively hollowed and/or raised portion in a fairly wide area of the tube wall. The object of this invention is to provide a tubular container having excellent decorativeness, appearance, or functionality that has never been found before.
    Type: Grant
    Filed: June 29, 2004
    Date of Patent: December 7, 2010
    Assignee: Yoshino Kogyosho Co., Ltd.
    Inventors: Shinji Shimada, Atsushi Ota, Yasuyuki Imaizumi
  • Patent number: 7846517
    Abstract: A heat-shrinkable polylactic acid (PLA) film and a method of its manufacture are provided. In an exemplary embodiment, the PLA films exhibit heat-induced growth in the cross direction with concomitant shrinkage in the machine direction. The films may comprise any grade of PLA polymer, optionally including additives, such as antiblock, slip, viscosity enhancers and combinations thereof. A method of manufacture is disclosed which includes a post-extrusion temperature conditioning step.
    Type: Grant
    Filed: April 19, 2006
    Date of Patent: December 7, 2010
    Assignee: Plastic Suppliers, Inc.
    Inventor: Joseph B. McDaniel
  • Publication number: 20100301526
    Abstract: The invention relates to a device for extruding plastic profiles, preferably plastic tubes, to which plasticized bulk plastic can be fed, and comprising a plurality of ring channels (5) combined by means of a flow conjunction (4) to a common melt channel (2). According to the invention, the tool (1) is divided into three functional areas, wherein the three functional areas are a distribution area (7), a cooling area (8), and a forming area (9), wherein cooling channels (3) are disposed about the ring channels (5) in the cooling area (8).
    Type: Application
    Filed: October 17, 2008
    Publication date: December 2, 2010
    Inventor: Leopold Hackl
  • Patent number: 7833449
    Abstract: Continuous molding process and apparatus forms a hot melt of thermoplastic material against a mandrel disposed between revolving belt molds to make hollow product having surface patterns and textures of a variable configuration. The hot melt is delivered to the nip region of the revolving belt molds. The mandrel extends downstream of the nip region and provides resistance to the molding pressure to prevent the collapse of the hot molded product and to define the size and shape of the hollow in the formed product until it cools and sets.
    Type: Grant
    Filed: March 7, 2006
    Date of Patent: November 16, 2010
    Inventor: W. James Kemerer
  • Publication number: 20100252965
    Abstract: Methods of fabricating a polymeric implantable device with improved fracture toughness through annealing, nucleating agents, or both are disclosed herein. A polymeric construct that is completely amorphous or that has a very low crystallinity is annealed with no or substantially no crystal growth to increase nucleation density. Alternatively, the polymer construct includes nucleating agent. The crystallinity of the polymer construct is increased with a high nucleation density through an increase in temperature, deformation, or both. An implantable medical device, such as a stent, can be fabricated from the polymer construct after the increase in crystallinity.
    Type: Application
    Filed: May 13, 2009
    Publication date: October 7, 2010
    Inventors: Yunbing Wang, Lothar W. Kleiner
  • Patent number: 7713458
    Abstract: A laminated seamless belt having at least a base layer and an outer layer. The base layer contains a polyester thermoplastic elastomer as its main component. The base layer has a volume resistivity set to not less than 1.0×106(?·cm) nor more than 1.0×1011(?·cm). A volume resistivity of the outer layer is set to not less than 1.0×1011(?·cm) and not less than 10 times as large as that of the base layer. The base layer and the outer layer are formed by laminated extrusion.
    Type: Grant
    Filed: November 17, 2006
    Date of Patent: May 11, 2010
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventors: Masakazu Tanaka, Takayuki Hattori
  • Patent number: 7691318
    Abstract: The invention provides a spinnerette assembly for forming hollow fibers. The spinnerette assembly contains an extrusion orifice and a fiber-forming material passage in communication with the extrusion orifice. A hollow needle extends through the extrusion orifice in a concentric manner to define an annular passage surrounding the needle. The fiber-forming material passage includes a fiber-forming material inlet port extending from a surface of the spinnerette assembly to an interior of the assembly and a transverse passage extending from the fiber-forming material port to the annular passage surrounding the needle. A bore forming fluid passage communicates with the interior of the needle.
    Type: Grant
    Filed: September 14, 2004
    Date of Patent: April 6, 2010
    Assignee: L'Air Liquide - Societe Anonyme a Directoire et Conseil de Surveillance pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventor: Samuel Earl Moore
  • Patent number: 7659025
    Abstract: A process for manufacturing a solid oxide fuel cell involves forming a tubular anode comprising an electrolyte substance and an oxide of an electrochemically active metallic substance without a distinct pore forming substance, sintering the tubular anode, forming an electrolyte onto the sintered anode, forming a cathode onto the electrolyte, and after forming the electrolyte and the cathode, reducing the oxide of the electrochemically active substance in the sintered anode to form pores in the anode.
    Type: Grant
    Filed: August 26, 2008
    Date of Patent: February 9, 2010
    Assignee: Acumentrics Corporation
    Inventors: Nigel Sammes, Tracy Murray, Michael Brown, Warren Ziegler
  • Publication number: 20090319036
    Abstract: Implantable medical devices and methods of forming thereof made from polymers with end groups providing improved thermal stability are disclosed. Implantable medical devices made from such polymers including stabilizing agents are additionally disclosed.
    Type: Application
    Filed: June 19, 2008
    Publication date: December 24, 2009
    Inventors: Yunbing Wang, Stephen D. Pacetti
  • Publication number: 20090309271
    Abstract: A process and apparatus for multi-shot, liquid-resin-molding of continuous-fiber composite articles is disclosed. The process involves the step-wise fabrication of an article wherein continuity of the fibers is maintained between the multiple workpieces of the finished composite article.
    Type: Application
    Filed: June 15, 2009
    Publication date: December 17, 2009
    Applicant: LOCKHEED MARTIN CORPORATION
    Inventors: Alan K. Miller, Stephen L. Bailey, Theodore Rosario, Jr.
  • Patent number: 7615183
    Abstract: The invention provides polylactic acid (PLA) films substantially free of plasticizers and methods of manufacturing same by blown film process are provided. PLA films are environmentally degradable and have applications in, at least, packaging and labeling.
    Type: Grant
    Filed: November 3, 2006
    Date of Patent: November 10, 2009
    Assignee: Plastic Suppliers, Inc.
    Inventors: Edward Carl Tweed, Henry Mike Stephens, Theodore Emil Riegert
  • Publication number: 20090273125
    Abstract: A manufacturing apparatus and manufacturing method are provided for manufacturing stably from a thermoplastic resin a resin film product having a small and uniform thickness and smooth surfaces, which has been impossible with a conventional tube extruding method or and blown film extrusion method. It comprises a heating extruder (1) for extruding a molten thermoplastic resin in a tubular form, and a core unit (2) opposed to an inner surface of said thermoplastic resin extruded in the tubular form, and molding said thermoplastic resin to a tubular resin film (20) while exuding a gas to said inner surface. A stabilizing device (4) is disposed between a nozzle (3) of said heating extruder (1) and said core unit (2) for stabilizing a shape of said thermoplastic resin extruded in the tubular form.
    Type: Application
    Filed: July 13, 2009
    Publication date: November 5, 2009
    Applicant: SUMITOMO BAKELITE CO., LTD.
    Inventors: Takeshi TAKEUCHI, Seigou Akazawa, Keiko Akazawa, Toyotaro Maruyama, Shingo Yoshida, Shigeyoshi Furuhara, Masanori Ikenaga, Toshio Nakao
  • Publication number: 20090224440
    Abstract: The invention describes-an extrusion device (1) for extruding a film tube in a direction (z) of movement, said extrusion device (1) comprising a nozzle head with an annular gap from which the film tube exits and said extrusion device (1) comprising an interior cooling device with which the extruded film tube can be cooled from the inside after its exit from the annular gap. Novel and inventive is the cooling element, which has the same cross-sectional form as the film tube and which has, in the direction (z) of motion of the extruded film tube, a surface which can be moved.
    Type: Application
    Filed: August 3, 2006
    Publication date: September 10, 2009
    Applicant: WINDMOELLER & HOELSCHER KG
    Inventor: Martin Backmann
  • Patent number: 7582342
    Abstract: A composition suitable for molding is provided having the following components: I. from 97 to 80 parts by weight of a polyetheramide, having units based on one or more linear aliphatic diamines having from 6 to 14 carbon atoms, one or more linear aliphatic or aromatic dicarboxylic acids having from 6 to 14 carbon atoms, and one or more polyetherdiamines having at least 3 carbon atoms per ether oxygen and having primary amino groups at the chain ends, II. from 3 to 20 parts by weight of a rubber containing one or more functional groups; and where the total of the parts by weight of I and II is 100; and moldings produced therefrom.
    Type: Grant
    Filed: July 16, 2004
    Date of Patent: September 1, 2009
    Assignee: Degussa AG
    Inventors: Franz-Erich Baumann, Wilfried Bartz, Martin Himmelmann, Olivier Farges
  • Patent number: 7550102
    Abstract: A method of making a composite tubular article made up of at least two concentric members, the outer of said members being tubular and the inner of said members being at least cylindrical and preferably tubular, and struts disposed in supporting and positioning orientation between the inner and outer members, by extruding a moldable material into the desired profile; stretching the inner tubular member over a cooling mandrel and disposing a cooling sleeve over the outer tubular member under conditions sufficient to solidify the article; twisting and longitudinally pulling the solidified article, so that it rotates over the cooling mandrel and inside the cooling sleeve while it is moving down stream across the cooling mandrel, whereby causing the extrudate to be twisted into a helical shape.
    Type: Grant
    Filed: August 1, 2002
    Date of Patent: June 23, 2009
    Assignee: Proteus, Inc.
    Inventor: F. John Herrington
  • Publication number: 20090152776
    Abstract: A process for extruding a partially crystalline melt-fabricable perfluoropolymer. The process comprises blowing film from a perfluoropolymer having polytetrafluoroethylene sub-micrometer particles dispersed therein. The perfluoropolymer composition is a core/shell polymer or a dispersion blend or a melt-mixed polymer.
    Type: Application
    Filed: December 5, 2008
    Publication date: June 18, 2009
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Ralph Munson Aten, Sharon Ann Libert, Heidi Elizabeth Burch
  • Publication number: 20090139695
    Abstract: The invention relates to a method and a device for cooling an extruded thermoplastics pipe (1) by directing a gaseous cooling medium tangentially towards the inner surface of the thermoplastics pipe (1) along its whole periphery, whereby the interior of the thermoplastics pipe (1) is divided by means of a protecting pipe (8) into an outer ring-shaped flow channel (9) for the cooling medium along the inner surface of the thermoplastics pipe (1), and a central return channel (10) through which a part of the cooling medium is intended to be sucked back influenced by the flow of cooling medium in the outer ring-shaped flow channel (9), and to be redirected towards the inner surface of the thermoplastics pipe (1).
    Type: Application
    Filed: June 13, 2006
    Publication date: June 4, 2009
    Applicant: Oy KWH Pipe Ab
    Inventors: Gunnar Blomqvist, Jonas Holmlund, Stefan Slotte
  • Publication number: 20090057962
    Abstract: An apparatus for inflating film for manufacturing packaging material in situ, wherein the apparatus comprises an inflating unit, a film conveying provision, a sealing unit and a film receiving means for receiving a film roll, wherein the apparatus is a compact apparatus with a relatively small footprint and wherein the inflating unit, film conveying provision and the sealing unit are provided in a central unit on the apparatus and are operatively positioned with respect to a center of the film to be inflated and sealed viewed in a direction at right angles to a film conveying direction, wherein the film to be inflated is operatively engaged only in or near the center thereof by the central unit, for inflating the film from or from near the center, then sealing the film tight and conveying it, as well as a method for manufacturing packaging material.
    Type: Application
    Filed: August 29, 2008
    Publication date: March 5, 2009
    Applicant: Ideepak Holding B.V.
    Inventor: Pieter Theodorus Joseph Aquarius
  • Publication number: 20090045555
    Abstract: The invention describes a method for setting the sizes of film tubes (1), which are extruded by blow film plants (15), in which method the film tube size is changed from an initial size of a film tube (1) to a final size of a film tube (1), and in which the location of the frost area (3) is optimized during the size change by setting the output of the cooling fan. Physical parameters of the initial and final size of the film tube (1) are stored in the control device (31). The control device (1) takes these physical parameters into account when generating control signals.
    Type: Application
    Filed: July 13, 2006
    Publication date: February 19, 2009
    Inventors: Tobias Kulgemeyer, Ulrich Krause
  • Patent number: 7485685
    Abstract: Plastics pipes comprise polyolefins which can be prepared by means of a fluorine-modified chromium catalyst and are used for transporting gases and liquids.
    Type: Grant
    Filed: October 19, 2006
    Date of Patent: February 3, 2009
    Assignee: Basell Polyolefine GmbH
    Inventors: Shahram Mihan, Heinz Vogt, Ilka Beuermann
  • Patent number: 7479248
    Abstract: The invention relates to a vessel prosthesis or patch, made from a biocompatible polymer with microporous, finely-fibrillated structure and a method for improving the e-modulus of said vessel prostheses or patches. According to the invention, the vessel prostheses or patches are subjected to a full stretching (extension) with a degree of extension between 30% and 250% and subsequent restoration.
    Type: Grant
    Filed: September 17, 2003
    Date of Patent: January 20, 2009
    Assignee: Adiam Life Science AG
    Inventors: Josef Jansen, Engin Kocaman
  • Publication number: 20080308975
    Abstract: A process for manufacturing a solid oxide fuel cell involves forming a tubular anode comprising an electrolyte substance and an oxide of an electrochemically active metallic substance without a distinct pore forming substance, sintering the tubular anode, forming an electrolyte onto the sintered anode, forming a cathode onto the electrolyte, and after forming the electrolyte and the cathode, reducing the oxide of the electrochemically active substance in the sintered anode to form pores in the anode.
    Type: Application
    Filed: August 26, 2008
    Publication date: December 18, 2008
    Applicant: ACUMENTRICS CORPORATION
    Inventors: Nigel Sammes, Tracy Murray, Michael Brown, Warren Ziegler
  • Publication number: 20080292222
    Abstract: Provided is a tie bag having at least two tie flaps. The tie bag includes a first sidewall and a second sidewall opposing the first sidewall. The first and second sidewalls are coupled by sealing together three of four corresponding peripheral edges of the sidewalls. The fourth peripheral edge of each of the first and second sidewalls remains unsealed to define an opening in the tie bag. The tie flaps are integral with and extend from the opening of the tie bag and are adapted for tying one to another to close the tie bag and to form a handle for the tie bag. Each of the tie flaps includes gripping features embossed on at least one surface of the tie flaps. The tie bag may be formed from a tube of thermoplastic material.
    Type: Application
    Filed: May 12, 2008
    Publication date: November 27, 2008
    Applicant: The Glad Products Company
    Inventor: Charles B. Snoreck