Screw Extruder Or Screw Feeder Device Patents (Class 264/211.21)
  • Patent number: 11174366
    Abstract: A method for forming a graphene-reinforced polymer matrix composite by distributing graphite microparticles into a molten thermoplastic polymer phase comprising one or more molten thermoplastic polymers; and applying a succession of shear strain events to the molten polymer phase so that the molten polymer phase exfoliates the graphene successively with each event, until tearing of exfoliated multilayer graphene sheets occurs and produces reactive edges on the multilayer sheets that react with and cross-link the one or more thermoplastic polymers; where the one or more thermoplastic polymers are selected from thermoplastic polymers subject to UV degradation.
    Type: Grant
    Filed: April 8, 2019
    Date of Patent: November 16, 2021
    Assignee: RUTGERS, THE STATE UNIVERSITY OF NEW JERSEY
    Inventors: Thomas J. Nosker, Jennifer K. Lynch-Branzoi, Bernard H. Kear, Justin Hendrix, Gordon Chiu
  • Patent number: 10899060
    Abstract: A method and a device for admixing additives into a polymer melt made of non-extracted polyamide 6 are disclosed. The polymer melt is combined in a highly concentrated form with an additional melt flow without additives and mixed therewith. Additionally, a part of the melt is branched off from a main melt flow (3), wherein the sub-melt flow (4) is transported into a dispersing device (5) and is supplied and mixed with one or more additives (12). The side-melt flow (4) with additives is then returned into the main melt flow (3), mixed with the main melt flow, and subsequently supplied for further processing.
    Type: Grant
    Filed: July 27, 2016
    Date of Patent: January 26, 2021
    Inventors: Raimund Schwarz, Reza Sarbandi
  • Patent number: 10146237
    Abstract: A thermostat includes an equipment controller and a model predictive controller. The equipment controller is configured to drive the temperature of a building zone to an optimal temperature setpoint by operating HVAC equipment to provide heating or cooling to the building zone. The model predictive controller is configured to determine the optimal temperature setpoint by generating a cost function that accounts for a cost operating the HVAC equipment during each of a plurality of time steps in an optimization period, using a predictive model to predict the temperature of the building zone during each of the plurality of time steps, and optimizing the cost function subject to a constraint on the predicted temperature of the building zone to determine optimal temperature setpoints for each of the time steps.
    Type: Grant
    Filed: June 16, 2017
    Date of Patent: December 4, 2018
    Assignee: Johnson Controls Technology Company
    Inventors: Robert D. Turney, Matthew J. Ellis, Michael J. Wenzel, Mohammad N. Elbsat, Juan Esteban Tapiero Bernal, Brennan H. Fentzlaff
  • Patent number: 9768407
    Abstract: The present disclosure provides a substrate-sealing method, frit and an electron device, and relates to the field of sensitive electronic components sealing technology. The method includes: coating glass cement on a first glass substrate within a sealing area, the glass cement including carbon nanotubes; pressing the first glass substrate and a second glass substrate together, and melting and sintering the glass cement between the first glass substrate and the second glass substrate at the sealing area by irradiating the sealing area with a laser.
    Type: Grant
    Filed: September 19, 2014
    Date of Patent: September 19, 2017
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Dan Wang
  • Patent number: 9447259
    Abstract: Carbon nanostructures free of an adhered growth substrate can include a plurality of carbon nanotubes that are branched, crosslinked, and share common walls with one another. Under applied shear, crosslinks between the carbon nanotubes in carbon nanostructures can break to form fractured carbon nanotubes that are branched and share common walls. Methods for making polymer composites from carbon nanostructures can include combining a polymer matrix and a plurality of carbon nanostructures that are free of an adhered growth substrate, and dispersing the carbon nanostructures in the polymer matrix under applied shear. The applied shear breaks crosslinks between the carbon nanotubes to form a plurality of fractured carbon nanotubes that are dispersed as individuals in the polymer matrix. Polymer composites can include a polymer matrix and a plurality of fractured carbon nanotubes dispersed as individuals in the polymer matrix.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: September 20, 2016
    Assignee: Applied NanoStructured Solutions, LLC
    Inventors: Tushar K. Shah, Mark R. Alberding, Rajneeta R. Basantkumar, Corey A. Fleischer
  • Patent number: 9282764
    Abstract: A device for producing a high density compact livestock feed from a loose granular material according to various embodiment can include a source for supplying a loose granular material to be treated and moving the treated material through a series of successive treatment zones. Rotatable screws are provided within an extruder to compress and transport the treated material a die. The treated material is pressed through the die while a two-dimensional cross-section compression is applied to the treated material.
    Type: Grant
    Filed: August 11, 2015
    Date of Patent: March 15, 2016
    Assignee: Nationwide 5, LLC
    Inventor: Michael R. Thomas
  • Publication number: 20150108696
    Abstract: The molded article includes a resin composition with a single shaft extruder, in which the resin composition is generated by melting and mixing a raw mixture, the raw mixture being obtained by blending 40-90 parts by mass of the polyolefin (A), 3-30 parts by mass of the metaxylylene group-containing polyamide (B), and 3-50 parts by mass of the modified polyolefin (C). In the single shaft extruder, the ratio of the length of the feeding part to the screw effective length is 0.40-0.55, the ratio of the length of the compressing part to the screw effective length is 0.10-0.30, the ratio of the length of the measuring part to the screw effective length is 0.10-0.40, the upper limit of the temperature of the feeding part falls within the range of +20° C. from the melting point of the metaxylylene group-containing polyamide or less, and the temperatures of the compressing part and the measuring part fall within the range of ?30° C. to +20° C.
    Type: Application
    Filed: November 7, 2014
    Publication date: April 23, 2015
    Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC
    Inventors: Kenji KOUNO, Ryoji OTAKI
  • Publication number: 20150076725
    Abstract: A method of recycling polymers and other plastics comprises: (A) grinding recycled PET bottles (or other suitable recycled polymer) into a group of flakes; (B) washing the flakes; (C) identifying and removing impurities, including impure flakes, from the group of flakes; (D) passing the group of flakes through an MRS extruder while maintaining the pressure within the MRS portion of the MRS extruder below about 5 millibars; (E) passing the resulting polymer melt through at least one filter having a micron rating of less than about 50 microns; and (F) preparing the polymer melt for recycling into a new product.
    Type: Application
    Filed: November 18, 2014
    Publication date: March 19, 2015
    Inventor: Thomas R. Clark
  • Patent number: 8968615
    Abstract: A bulk of polyester polymer particles comprising polyester polymer comprising greater than 75% virgin polyester polymer, the particles having: A) an It.V. of at least 0.72 dl/g, and B) 10 ppm or less of residual acetaldehyde; and C) at least two melting peaks, wherein one of said at least two melting peaks is a low peak melting point within a range of 140° C. to 220° C. and having a melting endotherm area of at least the absolute value of 1 J/g. The particles may also have a degree of crystallinity within a range of 20% and a maximum degree of crystallinity Tcmax defined by the equation: Tcmax=50%?CA?OH where CA is the total mole % of all carboxylic acid residues other than terephthalic acid residues, based on 100 mole % of carboxylic acid residues, and OH is the total mole % of all hydroxyl functional compound residues other than ethylene glycol residues, based on 100 mole % of hydroxyl functional compounds residues.
    Type: Grant
    Filed: October 21, 2010
    Date of Patent: March 3, 2015
    Assignee: Eastman Chemical Company
    Inventors: Michael Paul Ekart, Frederick Leslie Colhoun, Mary Therese Jernigan, Stephen Weinhold, Rodney Scott Armentrout
  • Patent number: 8961846
    Abstract: Methods using solid-state shear pulverization and melt mixing and related polymer-carbon nanotube composites, as can be used to affect various mechanical and/or physical material properties.
    Type: Grant
    Filed: December 2, 2013
    Date of Patent: February 24, 2015
    Assignee: Northwestern University
    Inventors: John M. Torkelson, Junichi Masuda
  • Publication number: 20140312527
    Abstract: Die assemblies and die assembly components are disclosed. Methods of making and using die assemblies and die assembly components are also disclosed.
    Type: Application
    Filed: March 13, 2014
    Publication date: October 23, 2014
    Inventor: Matthew C. Pelham, SR.
  • Patent number: 8834971
    Abstract: Process for the continuous preparation of prepolymers based on phenolic resin, an oxazoline component and an epoxide in the presence of a catalyst, including supplying the phenolic resin and the oxazoline component to an extruder in a stream A; a Lewis adduct of boron trifluoride or of aluminum trichloride, or arylsulphonic acids or alkylsulphonic acids, or latent arylsulphonic acids or latent alkylsulphonic acids, in a stream B, and the epoxide in a stream C, the infeed of stream A being situated, as seen in extrusion direction, before the infeed of stream C, these reactants are mixed at a reaction temperature of 120 to 200° C. with a residence time in the extruder of 3 seconds to 15 minutes, and then the product discharge of the extruder is cooled to a temperature of less than 45° C. within from 30 to 60 seconds.
    Type: Grant
    Filed: November 16, 2011
    Date of Patent: September 16, 2014
    Assignee: Evonik Degussa GmbH
    Inventors: Marianne Omeis, Franz-Albert von Itter, Thomas Weihrauch
  • Patent number: 8734696
    Abstract: Polymer-graphite compositions and related methods of using solid-state shear pulverization as can be used to affect one or more physical properties thereof.
    Type: Grant
    Filed: November 5, 2012
    Date of Patent: May 27, 2014
    Assignee: Northwestern University
    Inventors: John M. Torkelson, Katsuyuki Wakabayashi
  • Patent number: 8709316
    Abstract: A process (2) for manufacturing a shaped article (17), comprising the steps of: dry blending (8) a plurality of different particulated ingredients (11) to form a uniform particle blend; reblending the particle blend by substantially defining a mass flow in a discharge unit (19) including an insert (39, 60) and shaping the particle blend in a part shaping machine (15) to form the shaped article (17).
    Type: Grant
    Filed: March 13, 2009
    Date of Patent: April 29, 2014
    Assignee: Dow Global Technologies LLC
    Inventors: Parvinder S. Walia, Karl V. Jacob, James D. Oelberg, Nestor A. Vasquez
  • Patent number: 8703029
    Abstract: A method is provided for obtaining a polyarylene sulfide resin composition with a low chlorine content, which has high fluidity and high quality and produces less burrs. Specifically, a method is provided wherein a polyarylene sulfide resin composition is produced by melting and mixing (A) a polyarylene sulfide resin, (B) an inorganic filler, and (C) an alkoxysilane compound. In this method, (A) a polyarylene sulfide resin having a melt viscosity of 80-400 Pa·s (at a temperature of 310° C. and a shear rate of 1200/sec) and a chlorine content of 1000-2000 ppm is supplied from a raw material feed port of a specific extruder, and then extruded at two kneading parts within the range of [shear rate (1/sec)×kneading time (sec)=1600-6000], thereby producing a polyarylene sulfide resin composition having a melt viscosity of 150-330 Pa·s (at a temperature of 310° C. and a shear rate of 1200/sec) and a chlorine content of not more than 950 ppm.
    Type: Grant
    Filed: April 15, 2009
    Date of Patent: April 22, 2014
    Assignee: Polyplastics Co., Ltd.
    Inventors: Kazunari Takada, Raita Nishikawa, Katsuhei Ohnishi
  • Patent number: 8703031
    Abstract: The subject of the invention is a method for the manufacture of briquettes from comminuted straw, as well as a device to manufacture briquettes from comminuted straw. The method consists in that comminuted straw is compressed in a continuous process using a screw-type extruder until the material reaches a temperature at which the material after pressing solidifies to a density exceeding 1.3 g/cm 3. The device has a screw (3) composed of three segments of decreasing helix pitches toward the outlet. The forming die (8) is housed in a tank (11) connected through a water system (12) to a cooler (13). The cooling system has a temperature sensor (17) installed, said sensor being part of the pump supply circuit (15).
    Type: Grant
    Filed: June 18, 2010
    Date of Patent: April 22, 2014
    Inventor: Adam Piotr Junczyk
  • Patent number: 8641948
    Abstract: A process for preparing solid dispersions of highly crystalline compounds. The highly crystalline or thermally labile therapeutic compounds are processed in an extruder in combination with a solubilizing agent and optionally a plasticizer. The resulting extrudate features the therapeutic compound in an amorphous state. Particularly useful as the solubilizing agents are surfactants such as poloxamers.
    Type: Grant
    Filed: March 19, 2012
    Date of Patent: February 4, 2014
    Assignee: Novartis AG
    Inventors: Indrajit Ghogh, Jennifer Snyder, Wei Quin Tong, Sudha Vippagunta
  • Patent number: 8636931
    Abstract: A method of manufacturing a thermal paste, in which the method includes feeding the thermal paste into a chamber of an extruder; mixing the thermal paste at elevated temperatures; de-airing the thermal paste; and extruding the thermal paste out of the chamber through a die as a pre-form or into a cartridge, such that air channels and pseudo-grain boundaries are prevented from forming in the thermal paste.
    Type: Grant
    Filed: May 18, 2007
    Date of Patent: January 28, 2014
    Assignee: International Business Machines Corporation
    Inventors: Claudius Feger, Ijeoma M. Nnebe, Maurice McGlashan-Powell
  • Publication number: 20130320586
    Abstract: The present disclosure provides a flow device including a body disposed in an extrusion apparatus. The body is defined along a plane and has a first side and a second side. The second side is disposed opposite the first side. The flow device also includes a first face formed at the first side and a second face formed at the second side. The body has a thickness defined between the first face and second face. A plurality of feedholes is defined in the body between the first side and the second side. In addition, at least a portion of the first face or second face forms a curvature that extends outwardly from the plane.
    Type: Application
    Filed: May 29, 2012
    Publication date: December 5, 2013
    Inventors: Douglas Munroe Beall, Thomas William Brew, Christopher John Malarkey, Seth Thomas Nickerson, David John Thompson
  • Patent number: 8597557
    Abstract: Methods using solid-state shear pulverization and melt mixing and related polymer-carbon nanotube composites, as can be used to affect various mechanical and/or physical material properties.
    Type: Grant
    Filed: May 5, 2009
    Date of Patent: December 3, 2013
    Assignee: Northwestern University
    Inventors: John M. Torkelson, Junichi Masuda
  • Publication number: 20130224486
    Abstract: The invention provides systems and methods for preparing a plastic containing feedstream for conversion to valuable carbon-containing products such as synthetic crude oil. In some systems and methods, the plastic material is prepared from carpet scrap.
    Type: Application
    Filed: February 27, 2013
    Publication date: August 29, 2013
    Applicant: COMMUNITY ENERGY SYSTEMS
    Inventor: Community Energy Systems
  • Patent number: 8506864
    Abstract: A robust process for the continuous preparation of solutions of high molecular weight UHMW PO that is capable of producing strong materials at high production capacity, is conservative of capital and energy requirements, and the articles made therefrom.
    Type: Grant
    Filed: November 1, 2010
    Date of Patent: August 13, 2013
    Assignee: Honeywell International Inc.
    Inventors: Thomas Y. T. Tam, Qiang Zhou, John A. Young, Charles R. Arnett, John D. Brodie, Conor J. Twomey, Lori L. Wagner, Sheldon Kavesh
  • Patent number: 8460590
    Abstract: A process for continuously producing an elastomeric composition includes providing at least one extruder, metering and feeding at least one elastomer, at least one filler, and ingredients different from elastomers and fillers into the at least one extruder, mixing and dispersing the at least one filler and the ingredients different from elastomers and fillers into the at least one elastomer using the at least one extruder, and extruding a resulting elastomeric composition. The at least one extruder includes the housing and at least one screw rotatably mounted in the housing. The housing includes at least one feed opening and a discharge opening. At least one of the ingredients different from elastomers and fillers includes a subdivided product including one or more minor ingredients dispersed in at least one thermoplastic binding agent. An apparatus for continuously producing the elastomeric composition is also disclosed.
    Type: Grant
    Filed: July 22, 2002
    Date of Patent: June 11, 2013
    Assignee: Pirelli Pneumatici S.p.A.
    Inventors: Renato Caretta, Maurizio Galimberti, Cesare Amurri, Cristiano Puppi, Giuseppe Ducoli, Enrico Albizzati
  • Patent number: 8444898
    Abstract: A robust process for the continuous preparation of solutions of high molecular weight UHMW PO that is capable of producing strong materials at high production capacity, is conservative of capital and energy requirements, and the articles made therefrom.
    Type: Grant
    Filed: March 30, 2006
    Date of Patent: May 21, 2013
    Assignee: Honeywell International Inc
    Inventors: Thomas Y.-T. Tam, Qiang Zhou, John A. Young, Charles R. Arnett, John D. Brodie, Conor J. Twomey, Lori L. Wagner, Sheldon Kavesh
  • Patent number: 8440124
    Abstract: Single screw extruder for making a dryer bar.
    Type: Grant
    Filed: June 29, 2010
    Date of Patent: May 14, 2013
    Assignee: The Procter & Gamble Company
    Inventors: Corey James Kenneally, Robb Richard Gardner, Fleumingue Jean-Mary, Thomas Edward Dufresne, Darren Paul Trokhan, Barry Michael Beagle, Scott Comstock, Kurt Goris Houk
  • Publication number: 20130113134
    Abstract: The invention relates to an apparatus and a process for producing pigment-containing, in particular carbon-black-containing, polymer mixtures comprising polycarbonates and optionally elastomers, and/or other components, where the mouldings produced therefrom have, after the shaping process via injection moulding or via extrusion, improved surface properties and improved mechanical properties.
    Type: Application
    Filed: July 13, 2011
    Publication date: May 9, 2013
    Applicant: BAYER INTELLECTUAL PROPERTY GMBH
    Inventors: Birgit Derfuss, Michael Bierdel, Carsten Conzen
  • Publication number: 20130072621
    Abstract: A pneumatic object or inflatable article is provided with a gastight elastomer layer. The gastight elastomer layer includes a thermoplastic polyisobutylene block elastomer and hot-melt polymer microdomains based on at least one thermoplastic material.
    Type: Application
    Filed: March 10, 2011
    Publication date: March 21, 2013
    Applicants: MICHELIN RECHERCHE ET TECHNIQUE S.A., COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Vincent Abad, Emmanuel Custodero, Vincent Lemal
  • Patent number: 8323545
    Abstract: A co-extrusion process for making decorative moldings having a simulated wood appearance and a given profile includes mixing a base material and color particles to form a mixture, the base material having a rigid polymer and the color particles having a different color from the base material and a higher melt temperature than the base material. The mixture is heated and displaced using a feed screw such that the color particles move helically along the trajectory of the feed screw while avoiding backflow and melting to create corresponding helical vein segments within the base material. The mixture is forced through a tubular channel while controlling heat and shear conditions such that the helical vein segments remain substantially intact.
    Type: Grant
    Filed: March 15, 2010
    Date of Patent: December 4, 2012
    Assignee: Plastibec Inc.
    Inventors: Angelo Sudano, Benoit Meloche
  • Patent number: 8323534
    Abstract: Disclosed are electrochromic materials containing a film-forming polymer with a Tg less than 100° C.; a plasticizer; an electrochromophore; an electron mediator; and a salt. Also disclosed are electrochromic devices using such electrochromic materials that can provide light-filtering, color-modulation, or reflectance-modulation in variable transmittance windows, variable-reflectance mirrors and other dynamic glazing applications.
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: December 4, 2012
    Assignee: E I du Pont de Nemours and Company
    Inventors: Simona Percec, Joel M. Pollino
  • Patent number: 8303876
    Abstract: Polymer-graphite compositions and related methods of using solid-state shear pulverization as can be used to affect one or more physical properties thereof.
    Type: Grant
    Filed: February 25, 2011
    Date of Patent: November 6, 2012
    Assignee: Northwestern University
    Inventors: John M. Torkelson, Katsuyuki Wakabayashi
  • Publication number: 20120271004
    Abstract: The invention relates to a method for manufacturing a thermoplastic composition including: a polyester resin (c); a mixture including a copolymer (a) of an ?-olefin and of a monomer having an ethylenic unsaturation and an epoxy function, as well as a core-shell compound (b); characterized in that said method includes a first step of manufacture the mixture of (a) and (b) by extrusion at a temperature at which the copolymer (a) is in the molten state and at a maximum temperature of 60 to 180° C.; a second step of manufacturing the thermoplastic composition by extrusion or by mixing the polyester resin (c) with the mixture of (a) and (b) produced in the first step.
    Type: Application
    Filed: July 13, 2010
    Publication date: October 25, 2012
    Applicant: Arkema France
    Inventors: Sébastien Quinebeche, Alexander Korzhenko, Alain Bouilloux, Stephane Girois
  • Patent number: 8192663
    Abstract: A method for manufacturing a tire includes making at least one semi-finished elementary product of elastomeric material and depositing it in adjacent turns on a toroidal support. Making the at least one elementary product includes extruding the elastomeric material through an extruder head including a bushing defining a tapered extrusion channel. An extruder includes a chamber, at least one helical screw disposed in the chamber, and the extruder head. The head includes an outer tubular body attached by one end to the chamber, a bushing disposed inside the body to define the tapered extrusion channel, and a die disposed inside the body. A ratio of an area of the inlet section to an area of the outlet section is greater than 5:1 and less than 100:1 and a ratio of a diameter of the inlet section to a length of the bushing is greater than 0.1 and less than 1:1.
    Type: Grant
    Filed: February 5, 2002
    Date of Patent: June 5, 2012
    Assignee: Pirelli Pneumaticai S.p.A.
    Inventors: Rodolfo Noto, Ignazio De Gese, Gaetano Lo Presti
  • Publication number: 20120126444
    Abstract: An extrusion-molding machine includes a screw, a die and a high-hardness coat layer. The screw has a blade portion to extrude a molding material. The screw is disposed in a tightly-closed space which is maintained in a reduced-pressure atmosphere. The die molds an extruded molding material. The high-hardness coat layer is provided at least on the blade portion.
    Type: Application
    Filed: January 16, 2012
    Publication date: May 24, 2012
    Applicant: IBIDEN CO., LTD.
    Inventors: Norihiko YAMAMURA, Kazuya NARUSE, Eiji SUMIYA, Kosei TAJIMA
  • Patent number: 8105540
    Abstract: A method of treating a polymer compound has the steps of: mixing and agitating the polymer compound and a chemical agent in an extruder while controlling the inside of the extruder to be kept at a high temperature and a high pressure to have a reaction mixture containing a polymer treated product; supplying the reaction mixture continuously into a high-pressure container disposed following the extruder and retaining the reaction mixture at the high temperature and high pressure for a predetermined time; then supplying the reaction mixture continuously to a chemical agent separator to separate the polymer treated product; and supplying the separated polymer treated product continuously to a molding means to form it into a molded material.
    Type: Grant
    Filed: June 23, 2010
    Date of Patent: January 31, 2012
    Assignees: Hitachi Cable, Ltd., The Japan Steel Works, Ltd.
    Inventors: Toshiharu Goto, Takanori Yamazaki, Yoshihiko Iwamoto, Jun Kakizaki
  • Patent number: 8048955
    Abstract: A polycarbonate thin molded article containing a resin composition, the resin composition containing: 100 parts by weight of a resin (A), the resin (A) being an aromatic polycarbonate or a resin mainly containing an aromatic polycarbonate; 0.1 to 200 parts by weight of an inorganic compound (B); 0.001 to 10 parts by weight of at least one compound (C) selected from an organic acidic compound and an organic acidic compound derivative; and 0.001 to 1 part by weight of at least one metal salt (D) selected from an organic acid alkali metal salt and an organic acid alkaline earth metal salt, a part corresponding to at least 50% of the surface area of the polycarbonate thin molded article having a thickness of less than 0.7 mm, and a shrinkage ratio S1(%) in a molding flow direction of the polycarbonate thin molded article upon its being left under an atmosphere of 170° C. for 30 minutes satisfying the following formula (1): ?60<S1<?1??formula (1).
    Type: Grant
    Filed: April 25, 2005
    Date of Patent: November 1, 2011
    Assignee: Asahi Kasei Chemicals Corporation
    Inventors: Kazuhiro Shibuya, Akira Miyamoto, Kazuharu Yasuda
  • Patent number: 8017712
    Abstract: The present invention relates generally to a novel process for making a solid solventless MQ resin comprising the steps of (1)(A) feeding at least one MQ resin dispersed in a volatile solvent into an extrusion device, (2) removing the volatile solvent to form a solid solventless MQ resin; and (3) recovering the solid solventless MQ resin, provided steps (1) to (3) are completed without the addition of a linear silicone fluid.
    Type: Grant
    Filed: May 16, 2007
    Date of Patent: September 13, 2011
    Assignee: Dow Corning Corporation
    Inventors: Vicki Lynn Berry, Leon Neal Cook, Tina Marie Leaym, Randall Gene Schmidt
  • Patent number: 7964128
    Abstract: A process for continuously producing an elastomeric composition includes metering at least one elastomer, at least one filler, and at least one minor ingredient; feeding the at least one elastomer, the at least one filler, and the at least one minor ingredient into at least one extruder; mixing and dispersing the at least one filler and the at least one minor ingredient into the at least one elastomer using the at least one extruder; obtaining a subdivided product from a resulting elastomeric composition discharged from the at least one extruder; accumulating an amount of the subdivided product; and stirring the accumulated amount of the subdivided product. An apparatus for continuously producing an elastomeric composition includes at least one extruder, at least one first metering device, at least one second metering device, at least one device for obtaining a subdivided product, and at least one accumulating and stirring device.
    Type: Grant
    Filed: December 4, 2002
    Date of Patent: June 21, 2011
    Assignee: Pirelli Pneumatici S.p.A.
    Inventors: Renato Caretta, Maurizio Galimberti, Cristiano Puppi, Cesare Amurri, Stefano Testi, Francesco Romani
  • Patent number: 7927521
    Abstract: According to the present invention, a cellulose acylate film having high thickness precision and no streaks can be formed by producing a film with a cellulose acylate resin by means of the polishing roller method, and a high-performance optical film, which is free from the retardation distribution, can be produced by subsequently stretching the cellulose acylate film thus obtained within a magnification range from 1 or more and 2.5 or less.
    Type: Grant
    Filed: May 29, 2006
    Date of Patent: April 19, 2011
    Assignee: FUJIFILM Corporation
    Inventors: Masaaki Otoshi, Akihide Fujita, Shinichi Nakai
  • Patent number: 7906053
    Abstract: Polymer-graphite compositions and related methods of using solid-state shear pulverization as can be used to affect one or more physical properties thereof.
    Type: Grant
    Filed: February 23, 2009
    Date of Patent: March 15, 2011
    Assignee: Northwestern University
    Inventors: John M. Torkelson, Katsuyuki Wakabayashi
  • Patent number: 7906594
    Abstract: The invention relates to a process for preparation of polymer blends comprising at least one polyoxymethylene and at least one thermoplastic elastomer, where the thermoplastic elastomer is micropelletized by a pelletizing process and the pellets obtained in a) are dispersed in the polyoxymethylene matrix via melting of the components and mixing of these at low shear forces, and also to the use of micropelletized thermoplastic elastomers for preparation of polyoxymethylenes with low formaldehyde emission.
    Type: Grant
    Filed: September 13, 2006
    Date of Patent: March 15, 2011
    Assignee: Ticona GmbH
    Inventors: Karl-Friedrich Mück, Ernst Hofmann, Michael Hoffmockel
  • Patent number: 7897083
    Abstract: The object is to provide a method for manufacturing liquid crystalline resin composition having a hollow filler and a fibrous filler using a common melting-kneading extruder to maintain well-balanced relation between the residual percentages of hollow filler and the fiber length, which balance could not be attained in the prior art. A liquid crystalline resin composition having 5 to 30% by weight of hollow filler and 5 to 30% by weight of fibrous filler is manufactured using a melting-kneading extruder provided with a screw. (1) The liquid crystalline resin is fed from a main feed port located at upstream side in the extruding direction, while a hollow filler and a fibrous filler are fed from a side feed port located at downstream side in the extruding direction.
    Type: Grant
    Filed: July 11, 2005
    Date of Patent: March 1, 2011
    Assignee: Polyplastics Co., Ltd.
    Inventors: Hiroki Fukatsu, Masayuki Sakai, Kazufumi Watanabe
  • Patent number: 7896637
    Abstract: When constructing an injection molding machine M that is equipped with hydraulic pumps 2, which control discharge flow rates by variably controlling the number of revolutions of a drive motor 3, and that drives hydraulic actuators 4a . . . by these hydraulic pumps 2; the injection molding machine M is equipped with a hydraulic drive member 6 having multiple hydraulic pumps 2p and 2q, and a hydraulic oil supply circuit 5 jointly or individually supplying hydraulic oil to be discharged from multiple hydraulic pumps 2p and 2q to a hydraulic actuator 4a, 4b, 4c, 4d or 4e selected from the multiple hydraulic actuators 4a . . . .
    Type: Grant
    Filed: September 7, 2006
    Date of Patent: March 1, 2011
    Assignee: Nissei Plastic Industrial Co., Ltd.
    Inventors: Hiroshi Yamaura, Yoshimoto Unno
  • Publication number: 20110021707
    Abstract: A thermoplastic resin composition production method wherein melt-kneading is performed in a stretched flow when producing a thermoplastic resin composition as specified in the paragraph (I) or (II) below: (I) a thermoplastic resin composition comprising a Thermoplastic resin (A) and a Resin (B) with a reactive functional group; (II) a thermoplastic resin composition comprising a Thermoplastic resin (A), a Thermoplastic resin (C) that is different from the Thermoplastic resin (A), and a Compound (D) with a reactive functional group.
    Type: Application
    Filed: March 25, 2009
    Publication date: January 27, 2011
    Inventors: Sadayuki Kobayashi, Hideo Matsuoka, Makiko Saito, Masaru Akita
  • Patent number: 7858008
    Abstract: A profile-extruded article is disclosed, made of a fiber-reinforced polymer of vinyl-chloride monomer, wherein the article has a ratio of actual specific gravity to theoretical specific gravity of nearly unity. A method of making the article is also disclosed.
    Type: Grant
    Filed: February 22, 2007
    Date of Patent: December 28, 2010
    Assignee: PolyOne Corporation
    Inventors: Sang H. Lee, Robert B. Hooks
  • Publication number: 20100289175
    Abstract: The invention relates to a method for extruding plastic material using a screw-type extruder (S), wherein a first pressure (P1) of the material to be extruded is measured in at least one location in the feed region (EB) of the at least one screw (2) and/or in the melting region (A) of the housing (1), the plastic material agglomerating and/or softening and being present in and not yet, in particular not completely, melted state and/or being present not yet homogeneously as a melt in said location or in said melting region. According to the invention, the material supply to the extruder (S) and/or the charge quantity is measured or controlled as a function of the measured first pressure (P1).
    Type: Application
    Filed: October 22, 2008
    Publication date: November 18, 2010
    Inventors: Klaus Feichtinger, Gerhard Wendelin, Manfred Hackl, Christian Eckhart
  • Patent number: 7833611
    Abstract: A composition is described that includes at least one compatibilizer having at least one polyolefin and at least one polar group. The composition can include a blend of polymers. Surface coverings and floor coverings, such as laminated floor coverings, having the composition, are also described.
    Type: Grant
    Filed: February 23, 2007
    Date of Patent: November 16, 2010
    Assignee: Mannington Mills, Inc.
    Inventors: Tam Thi Minh Phan, Hao Chen, Dennis H. Bradway
  • Patent number: 7828997
    Abstract: According to the present invention, a cellulose acylate film difficult to be broken even if the stretching ratio is increased upon stretching and whose retardation (Re) is easily controllable to a desired value can be produced by melt film forming. Accordingly, a stretched cellulose acylate film highly oriented and having an appropriate retardation (Re) required from liquid crystal display device manufacturers can be produced.
    Type: Grant
    Filed: May 30, 2006
    Date of Patent: November 9, 2010
    Assignee: FUJIFILM Corporation
    Inventors: Masaaki Otoshi, Kiyokazu Hashimoto
  • Patent number: 7786191
    Abstract: The invention relates to a process for melt-shaping a polymer composition wherein the constituent components for the polymer composition are supplied directly to the shaping device in the form of a mixture of granules on or in which the constituent components are present. The granule mixture contains at least 3 granule-fractions containing the matrix polymer that differ in composition. The invention also relates to the granule mixture suitable for the melt-shaping process, the installation for the preparation and the process for preparing the granule mixture. The process results in a greater reproducibility and in articles with improved properties.
    Type: Grant
    Filed: April 25, 2001
    Date of Patent: August 31, 2010
    Assignee: DSM IP Assets B.V.
    Inventors: Gerardus J. M. De Koning, Erik R. Peerlkamp
  • Patent number: 7771111
    Abstract: A liquid phase continuous reactor which includes a screw rotatably disposed within a barrel and defining a mixing zone therebetween whereby the relative rotation of the screw with respect to the barrel is adapted to axially transport materials disposed between the screw and the barrel while mixing the components wherein the land surface area between the spiral groove forms at least 50% of the surface area of the screw in a mixing zone.
    Type: Grant
    Filed: March 20, 2002
    Date of Patent: August 10, 2010
    Assignee: Ceramic Fuel Cells Limited
    Inventor: Manh Hoang
  • Patent number: 7767124
    Abstract: A method of treating a polymer compound has the steps of: mixing and agitating the polymer compound and a chemical agent in an extruder while controlling the inside of the extruder to be kept at a high temperature and a high pressure to have a reaction mixture containing a polymer treated product; supplying the reaction mixture continuously into a high-pressure container disposed following the extruder and retaining the reaction mixture at the high temperature and high pressure for a predetermined time; then supplying the reaction mixture continuously to a chemical agent separator to separate the polymer treated product; and supplying the separated polymer treated product continuously to a molding means to form it into a molded material.
    Type: Grant
    Filed: April 1, 2005
    Date of Patent: August 3, 2010
    Assignees: Hitachi Cable, Ltd., The Japan Steel Works, Ltd.
    Inventors: Toshiharu Goto, Takanori Yamazaki, Yoshihiko Iwamoto, Jun Kakizaki