Organic Polymerization Patents (Class 422/131)
  • Patent number: 10370491
    Abstract: The present invention relates to a melt transesterification process for the production of (co)polycarbonates from diaryl carbonates and cycloalkylidene diphenols, which process comprises the addition of a monohydroxyaryl compound in an amount of 5.0 to 20.0 wt.-%, based on the total mass of the reaction mixture. The invention further relates to a (co)polycarbonate obtained by the process.
    Type: Grant
    Filed: January 20, 2016
    Date of Patent: August 6, 2019
    Assignee: Covestro Deutschland AG
    Inventors: Ivan Sluijs, Jan Heijl, Erik Sluyts, Frank Bruynseels
  • Patent number: 10358510
    Abstract: A process for polymerizing or copolymerizing ethylenically unsaturated monomers at pressures in the range of from 110 MPa to 500 MPa in a production line comprising a continuously operated polymerization reactor, wherein at least one of a pre-heater or pre-cooler, a polymerization reactor or a post reactor cooler is composed of tubes of a length from 5 m to 25 m which are flanged together, either directly or via bends, and the flanges are covered by a chimney construction, and wherein air is conveyed through the chimney construction and the air exiting the chimney construction is monitored with respect to the hydrocarbons concentration.
    Type: Grant
    Filed: May 9, 2017
    Date of Patent: July 23, 2019
    Assignee: Basell Polyolefine GmbH
    Inventors: Andrei Gonioukh, Thomas Herrmann, Dieter Littmann, Andre-Armand Finette, Sven Wolfram
  • Patent number: 10351907
    Abstract: According to various embodiments, a method is provided that comprises washing an array of DNA-coated beads on a substrate, with a wash solution to remove stacked beads from the substrate. The wash solution can include inert solid beads in a carrier. The DNA-coated beads can have an average diameter and the solid beads in the wash solution can have an average diameter that is at least twice the diameter of the DNA-coated beads. The washing can form dislodged DNA-coated beads and a monolayer of DNA-coated beads. In some embodiments, first beads for forming an array are contacted with a poly(ethylene glycol) (PEG) solution comprising a PEG having a molecular weight of about 350 Da or less. In some embodiments, slides for forming bead arrays are provided as are systems for imaging the same.
    Type: Grant
    Filed: October 16, 2014
    Date of Patent: July 16, 2019
    Assignee: LIFE TECHNOLOGIES CORPORATION
    Inventors: George A. Fry, Christina E. Inman, John Bridgham, Timothy Hunkapiller, Charles S. Vann
  • Patent number: 10195581
    Abstract: Parallel reactor systems for synthesizing materials are disclosed. The reactor systems may be suitable for synthesizing materials produced from corrosive reagents. Methods for preparing materials by use of such parallel reactor systems are also disclosed.
    Type: Grant
    Filed: March 26, 2013
    Date of Patent: February 5, 2019
    Assignee: UNCHAINED LABS
    Inventors: Daniel Giaquinta, Robert S. Busacca, Robert K. Rosen, John F. Varni, Jeffrey C. Yoder
  • Patent number: 10179826
    Abstract: A process is described for introducing a catalyst into a polymerization zone by detecting one or a combination of (i) a change in a concentration of the catalyst in a catalyst feed stream upstream of the polymerization zone, (ii) a change in a concentration of monomer in the polymerization zone, and (iii) a change in a polymer production rate of the polymerization zone, adjusting a first catalyst flow rate of the catalyst in the catalyst feed stream to a second catalyst flow rate based on the one or a combination of (i), (ii), and (iii), and introducing the catalyst into the polymerization zone downstream of a location in the catalyst feed stream where the step of adjusting is performed. A catalyst injection system for carrying out such a process is also provided.
    Type: Grant
    Filed: May 5, 2017
    Date of Patent: January 15, 2019
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Anurag Gupta, Anne M Balinsky, Robert R McElvain, John D Stewart
  • Patent number: 10161945
    Abstract: This invention relates to a cartridge assembly tray for conducting automated biochemical tests, such as immunoassay tests. The tray comprises a base member, a hinged frame and a locking mechanism. The base member includes a plurality of slots within the base member. Each of the plurality of slots is to receive a test cartridge. The hinged frame is coupled to the base member. The hinged frame is capable to rotate to an opened position or a closed position. The hinged frame includes a horizontal push bar configured to apply a downward force to test cartridges received in the plurality of slots when the hinged frame is in the closed position. The locking mechanism is to lock the hinged frame in the closed position when the hinged frame rotates to the closed position.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: December 25, 2018
    Assignee: Access Medical Systems, LTD.
    Inventors: Hong Tan, Yongli Ren, Ming Xia, Genqian Li
  • Patent number: 10106709
    Abstract: A single-component conductive adhesive with low hardness, and method of manufacture and use are provided. The conductive adhesive may include a resin composition, an organic solvent and nickel-coated graphite powder. The weight ratio of the resin composition to nickel-coated graphite powder may be 20%:80% or 40%:60%. The weight of the organic solvent may be 20-40% the weight of the resin composition. The resin composition may include 20-40% by weight of vinyl-terminated polydimethylsiloxane (PDMS), 5-15% by weight of H—Si polysiloxane oil, 0.05-0.15% by weight of polymerization inhibitor, and 0.1-1% by weight of encapsulated platinum complex.
    Type: Grant
    Filed: June 9, 2017
    Date of Patent: October 23, 2018
    Assignee: Dongguan Nystein Electronic Materials Co., LTD.
    Inventor: Hongyang Liu
  • Patent number: 10052767
    Abstract: A robot, wherein the robot operates on the basis of a picked-up image of at least a part of a work space of the robot picked up by an image pickup section, and a transparent member is disposed between the robot and the work space of the robot.
    Type: Grant
    Filed: June 16, 2016
    Date of Patent: August 21, 2018
    Assignee: Seiko Epson Corporation
    Inventors: Kenichi Maruyama, Takashi Nammoto, Tomoki Harada
  • Patent number: 10012643
    Abstract: A system and method provide for high through put determination of agglutination states. The system includes a rotating table and multiple plate tilting stations. The system also includes one or more optical paths positioned to image entire plate arrays in tilted and/or untilted configurations. The system preferably includes image analysis software to analyze an image of an array of test wells and determine an agglutination state of each well based on the image analysis.
    Type: Grant
    Filed: July 28, 2015
    Date of Patent: July 3, 2018
    Assignee: SANOFI PASTEUR VAXDESIGN CORPORATION
    Inventors: Michael Nguyen, Robert Parkhill
  • Patent number: 9902791
    Abstract: The invention provides compositions, each comprising an ethylene/alpha-olefin interpolymer, which has a reduced level of a low density, low molecular weight oligomeric fraction, as indicated by an HCC value, as described herein, and reduced levels of inorganic content or lower Tm. The invention also provides processes for forming such interpolymers.
    Type: Grant
    Filed: June 7, 2017
    Date of Patent: February 27, 2018
    Assignee: Dow Global Technologies LLC
    Inventors: Frank J. Cerk, Rongjuan Cong, Shrikant Dhodapkar, Selim Yalvac, Morgan M. Hughes, Timothy W. Gambrel, Yi Jin
  • Patent number: 9879098
    Abstract: In the high pressure polymerization of ethylene homopolymers or copolymers, conditions in the high pressure recycle system may lead to the build-up of low molecular weight oligomers and waxes. Sequentially draining knock-out pots, located downstream of a high pressure separator, at regular intervals can reduce the build-up of low molecular weight oligomers and waxes during the high pressure polymerization of alpha olefins.
    Type: Grant
    Filed: May 19, 2015
    Date of Patent: January 30, 2018
    Assignee: NOVA Chemicals (International) S.A.
    Inventors: James A. Auger, Craig Allan Hulet, Ross Donald Moreton, Benjamin Milton Shaw, Amanda Dolores Murphy
  • Patent number: 9880564
    Abstract: The position controller for a pneumatic field device comprises a current-pressure transducer system having at least two I/P-transducers creating separate pneumatic control signals. Microelectronics creates at least two electrical control signals for the I/P-transducers. A pneumatic signal switching valve has at least two pneumatic inputs for the at least two pneumatic control signals, a pneumatic output for transferring a pneumatic control signal to a working chamber of the pneumatic field device and an electrical switch signal input. The pneumatic signal switch valve comprises a first switch position which blocks a first of the at least two pneumatic control signals and a second switch position which blocks a second of the pneumatic control signals.
    Type: Grant
    Filed: September 2, 2015
    Date of Patent: January 30, 2018
    Assignee: SAMSON AKTIENGESELLSCHAFT
    Inventor: David Wagner-Stuerz
  • Patent number: 9809660
    Abstract: A process for making a low density polymer in a polymerization reactor system, the process comprising polymerizing an olefin monomer, and optionally an olefin comonomer, in the presence of a diluent in a polymerization reactor to make a polymerization product slurry consisting of a liquid phase and a solid phase, wherein the solid phase comprises an olefin polymer having a density of between about 0.905 g/cm3 to about 0.945 g/cm3; and discharging the polymerization product slurry from the polymerization reactor through a continuous take-off valve to make a mixture further comprising a vapor phase. The mixture comprises a pressure less than a bubble point pressure of a component in the polymerization product slurry.
    Type: Grant
    Filed: February 22, 2017
    Date of Patent: November 7, 2017
    Assignee: Chevron Phillips Chemical Company, LP
    Inventors: John D. Hottovy, Scott E. Kufeld, Joel A. Mutchler
  • Patent number: 9790293
    Abstract: Petrochemical complex containing an olefin monomer polymerization plant having at least one polymerization reactor and an optional degassing section. The polymerization reactor contains process hydrocarbons consisting of the monomer, the optional comonomer(s) and optionally at least one inert hydrocarbon diluent, together with aluminum containing compound(s). The polymerization plant includes liquid purge stream(s) which contain aluminum containing compounds and optionally polymer fines, together with accumulated hydrocarbons which are different from the process hydrocarbons and which are hydrocarbons containing at least 4 carbon atoms. The petrochemical complex also contains a multipurpose hydrocarbon treatment unit which separates the liquid purge stream(s) into one stream having substantially all of the aluminum containing compounds and optional polymer fines, and one stream containing the accumulated hydrocarbons.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: October 17, 2017
    Assignee: INEOS EUROPE AG
    Inventors: Fabrice Betton, Kevin Peter Ramsay
  • Patent number: 9708423
    Abstract: Process for the gas-phase polymerization of olefins in a fluidized bed reactor, by a) passing a fluidizing gas containing an olefin monomer through a fluidized bed of polymer particles in the presence of a polymerization catalyst, b) withdrawing a first gaseous stream containing solid particles from the reactor, c) passing the first gaseous stream to a gas/solids separator, separating solid particles, and forming a second gaseous stream containing residual solid particles, d) passing a portion of the second gaseous stream to a heat exchanger(s) to remove heat and e) recycling a portion of the cooled stream from (d) as the fluidizing gas in (a). The fouling rate of the heat exchanger (s) is such that i) the increase in pressure drop across the heat exchanger is equivalent to less than 5%/year, and/or ii) the decrease in heat transfer of the heat exchanger is equivalent to less than 5%/year.
    Type: Grant
    Filed: June 16, 2016
    Date of Patent: July 18, 2017
    Assignee: INEOS SALES (UK) LIMITED
    Inventors: Andrew David Bell, Jean-Louis Chamayou, Kevin Peter Ramsay
  • Patent number: 9705145
    Abstract: A hydrogen generator and a fuel cell system including the hydrogen generator are disclosed. The hydrogen generator includes a fuel composition including a hydrogen containing material that releases hydrogen gas to produce hydrogen when heated. A biasing member working in cooperation with a heating element and retainer, all of which are disposed within a unitary container, facilitate and control the release of hydrogen gas. The fuel composition can be segregated into individual quantities.
    Type: Grant
    Filed: April 15, 2015
    Date of Patent: July 11, 2017
    Assignee: Intelligent Energy Inc.
    Inventors: Thomas J. Kmetich, Gerald A. Zsigo, Alvin R. Mick, Harri Kytomaa
  • Patent number: 9605095
    Abstract: A process for making a low density polymer in a polymerization reactor system, the process comprising polymerizing an olefin monomer, and optionally an olefin comonomer, in the presence of a diluent in a polymerization reactor to make a polymerization product slurry consisting of a liquid phase and a solid phase, wherein the solid phase comprises an olefin polymer having a density of between about 0.905 g/cm3 to about 0.945 g/cm3; and discharging the polymerization product slurry from the polymerization reactor through a continuous take-off valve to make a mixture further comprising a vapor phase. The mixture comprises a pressure less than a bubble point pressure of a component in the polymerization product slurry.
    Type: Grant
    Filed: May 6, 2016
    Date of Patent: March 28, 2017
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: John D. Hottovy, Scott E. Kufeld
  • Patent number: 9550946
    Abstract: The invention concerns a purge/sampling system for vessels, particularly for high temperature, high pressure vessels such as hydroconversion reactors used in refinery processes and operated in severe conditions. Such purge/sampling system comprises a purge/sampling line (16) equipped with a connector designed to be connected to the vessel (10), a first (18 and a second (20) flow regulation systems mounted in series on the purge/sampling line, wherein at least one injection line (22) is connected to the purge/sampling line between the first and the second flow regulation systems, said injection line comprising connecting means to a source of cleaning fluid (24) and at least one flow regulation device to control the flow of cleaning fluid through injection line and purge/sampling line The invention also concerns a vessel equipped with such a purge/sampling system, as well as a cleaning method using said purge/sampling system.
    Type: Grant
    Filed: December 23, 2011
    Date of Patent: January 24, 2017
    Assignee: TOTAL RAFFINAGE FRANCE
    Inventors: Katell Le Lannic, Xavier Mourain, Maxime Varin
  • Patent number: 9534062
    Abstract: An improved process for synthesizing acrylic polymers, which is highly controllable to achieve high molecular weight, high conversion rate, and low polydispersity involves continuously introducing initiator(s), acrylic monomer(s), and optionally other monomers capable of polymerizing with the acrylic monomer(s), into a microchannel of a microreactor having an integral micromixer and an integral heat exchanger.
    Type: Grant
    Filed: May 26, 2015
    Date of Patent: January 3, 2017
    Assignee: Corning Incorporated
    Inventors: Mingqian He, Clemens Rudolf Horn, Jieyu Hu, Patrick Jean, Weijun Niu, David Neal Schissel, Michael James Winningham
  • Patent number: 9481883
    Abstract: Methods are provided for producing a molecular array comprising a plurality of molecules immoblized to a solid substrate at a density which allows individual immobilized molecules to be individually resolved, wherein each individual molecule in the array is spatially addressable and the identity of each molecule is known or determined prior to immobilization. The use of spatially addressable low density molecular arrays in single molecule detection and analysis techniques is also provided. Novel assays and methods are also provided.
    Type: Grant
    Filed: July 22, 2015
    Date of Patent: November 1, 2016
    Assignee: Singular Bio, Inc.
    Inventor: Kalim Mir
  • Patent number: 9468606
    Abstract: A powder is disclosed including core/shell particles having an average particle size of less than 1000 microns, each particle contains a liquid core that is substantially free of water and includes A) a polar liquid having a percent surface polarity of at least 24%, an active ingredient, and C) from about 0.1% to about 20% by weight of at least one solubility enhancing agent that is not an active ingredient; and a shell comprising hydrophobic particles. The powder can be used to topically administer the active ingredient to a human or animal.
    Type: Grant
    Filed: March 31, 2014
    Date of Patent: October 18, 2016
    Assignee: Johnson & Johnson Consumer Inc.
    Inventors: Ying Sun, Jeffrey M. Wu, Ali Fassih
  • Patent number: 9469707
    Abstract: Processes and systems for the production for pressure management of a polymerization product flowing from a loop polymerization reactor to a separation vessel in a slurry polymerization system are disclosed herein. For example, a process comprises withdrawing a polymerization product slurry from a loop polymerization reactor, conveying the polymerization product slurry through a first line comprising a continuous take-off valve to yield a mixture comprising a vapor phase, wherein the mixture exits the continuous take-off valve, and conveying the mixture through a second line comprising a flashline heater so that the mixture has a Froude number in a range from about 5 to about 100.
    Type: Grant
    Filed: December 8, 2015
    Date of Patent: October 18, 2016
    Assignee: Chevron Philips Chemical Company LP
    Inventors: Scott E. Kufeld, Bruce E. Kreischer, John D. Hottovy
  • Patent number: 9399688
    Abstract: A process for polymerizing olefins at temperatures of from 30° C. to 140° C. and pressures of from 1.0 MPa to 10 MPa in the presence of a polymerization catalyst in a multistage polymerization of olefins in at least two serially connected gas-phase polymerization reactors, and apparatus for the multistage polymerization of olefins, comprising at least two serially connected gas-phase polymerization reactors and a device for transferring polyolefin particles from an up-stream gas-phase polymerization reactor to a downstream gas-phase polymerization reactor, the transferring device comprising—a gas/solid separation chamber placed downstream of the upstream gas-phase polymerization which gas/solid separation chamber is equipped at a lower part with an net for introducing a fluid, and—connected to the gas/solid separation chamber at least two lock hoppers, placed in a parallel arrangement, each connected to the downstream gas-phase polymerization reactor.
    Type: Grant
    Filed: May 13, 2014
    Date of Patent: July 26, 2016
    Assignee: Basell Polyolefine GmbH
    Inventors: Giuseppe Penzo, Gabriele Mei, Gerhardus Meier, Ulf Schueller, Antonio Ciarrocchi
  • Patent number: 9358515
    Abstract: Embodiments of the present application provide a method for manufacturing a polyolefin and a system for implementing the method. The method comprises combining a catalyst with a diluent mixture containing a diluent and an olefin monomer in a polymerization reactor. The diluent may comprise propane, butane, or isobutane, or a combination thereof. The polymerization reactor is operated at a pressure above a critical pressure of the diluent, but below the critical temperature of the diluent.
    Type: Grant
    Filed: February 3, 2010
    Date of Patent: June 7, 2016
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: John D. Hottovy, Joel A. Mutchler
  • Patent number: 9308512
    Abstract: A method for forming a self-regenerating seal in a mixing chamber of a high-pressure mixing apparatus for polymeric components suitable for providing a reactive mixture for a polymerizable resin. An annular sealing element is provided in a circular housing seat inside the mixing chamber, in a sealing zone downstream the injection holes for the polymeric components; worn and/or torn parts of the annular sealing element are automatically regenerated by the same reactive mixture delivered during operation of the mixing apparatus. A high-pressure mixing apparatus with self-regenerating sealing element is also claimed.
    Type: Grant
    Filed: February 12, 2014
    Date of Patent: April 12, 2016
    Assignee: AFROS S.P.A.
    Inventors: Carlo Fiorentini, Maurizio Corti
  • Patent number: 9114370
    Abstract: The invention relates to a catalyst metering device with a valve formed of an iron-based alloy steel hardened to a Rockwell hardness C of at least 60. The device can be used for metering of a catalyst for an ethylene polymerization reaction. The invention further relates to ethylene polymerization wherein the catalyst is metered in a catalyst metering device with a iron-based alloy steel hardened valve, as well as to a ethylene polymerization reactor comprising such a catalyst metering device.
    Type: Grant
    Filed: April 14, 2014
    Date of Patent: August 25, 2015
    Assignee: TOTAL RESEARCH & TECHNOLOGY FELUY
    Inventors: Daan Dewachter, Daniel Bekaert
  • Patent number: 9080140
    Abstract: Embodiments described herein relate to in vitro cell culture. Embodiments include a substrate having a support layer that includes support molecules having a first region configured to bind to the substrate and having a photo-responsive region configured to change conformation between at least two conformations. In a first conformation of the photo-responsive region, the support molecules are configured to be more accessible to cells. In a second conformation of the photo-responsive region, the support molecules are configured to be less accessible to cells.
    Type: Grant
    Filed: December 1, 2009
    Date of Patent: July 14, 2015
    Assignee: EMPIRE TECHNOLOGY DEVELOPMENT LLC
    Inventor: Masahiro Ueda
  • Patent number: 9082608
    Abstract: In some embodiments of the present disclosure, an apparatus for combinatorial wet processing includes: a chuck, a substrate located on the chuck, a cell located over the substrate; and a height adjustment mechanism for the cell above the substrate wherein applying compressed air on an O-ring in a gland prevents vertical movement of the cell relative to the position of the substrate.
    Type: Grant
    Filed: December 3, 2012
    Date of Patent: July 14, 2015
    Assignee: Intermolecular, Inc.
    Inventor: Aaron T. Francis
  • Patent number: 9039979
    Abstract: The present disclosure relates to an apparatus and process for forming medical devices from an injectable composition. The apparatus includes a supply assembly configured to maintain and selective dispense a first precursor and a second precursor, a mixing assembly configured to mix the first and second precursors, and at least one catalyzing element including a transition metal ion to aid in the polymerization of the first and second precursors. The process includes dispensing a volume of the first precursor and a volume of the second precursor into a mixing assembly and mixing the first and second precursors. The first and second precursors each possess a core and at least one functional group known to have click reactivity with each other. The mixed precursors are contacted with a transition metal catalyst to produce a flowable composition for use as a medical device.
    Type: Grant
    Filed: February 22, 2010
    Date of Patent: May 26, 2015
    Assignee: Sofradim Production
    Inventors: Sébastien Ladet, Philippe Gravagna
  • Publication number: 20150141589
    Abstract: An olefin polymerization reactor comprising a tubular portion that extends in a vertical direction; a tapered portion disposed inside the tubular portion, an inside diameter of the tapered portion decreasing downwardly, and including a vertically penetrating orifice at a bottom end thereof; a tubular lower deflector disposed above the orifice of the tapered portion, an outside diameter of the tubular lower deflector increasing downwardly, a bottom end thereof being located away from an inner wall of the tubular portion, and including a vertically penetrating orifice at a top end thereof; and an upper deflector disposed above the orifice of the lower deflector, an outside diameter of the upper deflector increasing downwardly, a top end thereof being closed, a bottom end thereof being located away from the inner wall of the tubular portion, and an outside diameter at the bottom end being equal to or greater than an inside diameter of the orifice of the lower deflector.
    Type: Application
    Filed: May 1, 2013
    Publication date: May 21, 2015
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventor: Hideki Sato
  • Publication number: 20150133620
    Abstract: Techniques are provided for polymerization. A polymerization method may include polymerizing a monomer in a polymerization reactor to produce a slurry comprising polyolefin particles and a diluent, flowing the slurry out of the polymerization reactor through an outlet of the polymerization reactor, receiving the slurry from the outlet into a slurry handling system, conveying a first mixture from the slurry handling system to a diluent and monomer recovery system, and injecting steam into the first mixture downstream of the slurry handling system using a steam injection system.
    Type: Application
    Filed: November 13, 2013
    Publication date: May 14, 2015
    Applicant: Chevron Phillips Chemical Company LP
    Inventors: Scott E. Kufeld, Joel A. Mutchler, David S. Boone
  • Publication number: 20150133616
    Abstract: The present invention provides a process for manufacturing polyethylene-diene-copolymer conducted in a plant including at least one compressor unit, at least one preheater unit downstream of the compressor unit and at least one reactor, in particular a reactor, downstream of the compressor unit and the preheater unit. The process comprising the steps of (a) feeding a first feed stream comprising ethylene into the at least one compressor unit and subsequently into the at least one preheater unit, and (b1) feeding a second feed stream including at least one diene comonomer to the first feed stream leaving the at least preheater unit, and feeding the combined feed streams including ethylene and the at least one diene comonomer to the at least one reactor, and/or (b2) feeding a second feed stream including at least one diene comonomer to the at least one reactor at at least one location along the reactor.
    Type: Application
    Filed: March 7, 2013
    Publication date: May 14, 2015
    Inventors: Bernt-Ake Sultan, Bjoern Voigt, Perry Nylander, Thomas Hjertberg, Kristian Dahlen, Mattias Bergqvist, Martin Anker, Kjell Fossum
  • Publication number: 20150126705
    Abstract: The present invention relates to a method for separating volatile substances, particularly iodine, diiodised aromatic compounds and/or mixtures thereof, from material mixtures containing said compounds. The invention further relates to a device for producing polyarylene sulphides, by means of which volatile substances, particularly iodine and diiodised aromatic compounds, can be separated from the polymers.
    Type: Application
    Filed: April 29, 2013
    Publication date: May 7, 2015
    Inventors: Clifford Schaferskupper, Thomas Hille, Theodor Jurgens, Andre Schumann, Lars Gierszewski
  • Patent number: 9023958
    Abstract: A method for the delivery of a catalyst to a polymerization reactor is disclosed, comprising: contacting a catalyst with a carrier fluid comprising an inert hydrocarbon in gaseous form, the inert hydrocarbon having a normal boiling point of about ?1° C. to about 81° C.; and flowing the carrier fluid to the polymerization reactor such that the carrier fluid transports the catalyst to the polymerization reactor. A catalyst delivery system is disclosed, comprising: a catalyst vessel for containing a catalyst; a catalyst injection line for delivering the catalyst to a polymerization reactor, the catalyst injection line being in fluid communication with the catalyst vessel and the polymerization reactor; and a carrier fluid line in fluid communication with the catalyst injection line for delivering a carrier fluid comprising an inert hydrocarbon to the catalyst injection line, the inert hydrocarbon having a normal boiling point of about ?1° C. to about 81° C.
    Type: Grant
    Filed: October 25, 2012
    Date of Patent: May 5, 2015
    Assignee: Univation Technologies, LLC
    Inventors: Dale A. Wright, John R. Parrish, James L. Swecker, II, Mark G. Goode
  • Patent number: 9018346
    Abstract: The present invention provides a method for removing unreacted monomer in polymer using a SCC comprising a housing having a rotation axis; a supply part of at least one polymer formed inside of the housing; at least two spinning cones that are installed so as to have a constant gradient from the upper part to the lower part to the rotation axis, move polymer supplied through the polymer supply part, and rotate around the rotation axis; a fixed cone that is fixed and formed on the inner side of the housing, and provides a pathway for sequentially moving polymer from a spinning cone at the upper part to a spinning cone at the lower part; a product collection part for collecting polymer moved through the spinning cone and the fixed cone; and a driving part for rotating the spinning cone.
    Type: Grant
    Filed: May 25, 2012
    Date of Patent: April 28, 2015
    Assignee: LG Chem, Ltd.
    Inventors: Eun-Jung Joo, Dong-Kwon Lee, Dae-Young Shin, Jong-Ku Lee, Chang-Hoe Heo
  • Publication number: 20150112032
    Abstract: The present invention relates to a process for manufacturing polyethylene-silane-copolymer conducted in a plant including at least one compressor unit and at least one reactor downstream of the compressor unit. The process includes the steps of (a) feeding a first feed stream including ethylene into the at least one compressor unit and subsequently to the at least one reactor, and (b1) feeding a second feed stream including at least one silane comonomer to the at least one reactor as front feed and/or (b2) feeding a second feed stream including at least one silane comonomer to the at least one reactor at at least one location along the reactor.
    Type: Application
    Filed: March 7, 2013
    Publication date: April 23, 2015
    Inventors: Helmut Feichtner, Bernt-Ake Sultan, Gabriel Ruess, Bjoern Voigt, Roger Carlsson, Martin Anker, Mattias Bergqvist, Kristian Dahlen, Kjell Fossum, Thomas Hjertberg, Perry Nylander
  • Publication number: 20150099854
    Abstract: The invention provides a fluidized bed polymerization reactor, including: a column, in which a liquid distributor and a gas distributor above the liquid distributor are arranged, so that the reaction zone being divided into a first zone and a second zone through the gas distributor; and a circulating unit for circulating the gas material originated from the top zone of the column into the bottom zone thereof in a form of gas-liquid mixture. The gas-liquid mixture is undergone a gas-liquid separation in the bottom zone, the gas phase portion obtained being fed to the gas distributor and then into the second zone while the liquid phase portion obtained being entered into the first zone through the liquid distributor, so that the temperature in the first zone is lower than that in the second zone. Therefore, polymer with a molecular weight distributed in a relatively wide range can be obtained. The invention further provides a method for preparing polymer.
    Type: Application
    Filed: September 29, 2011
    Publication date: April 9, 2015
    Inventors: Wenqing Wu, Yongrong Yang, Guanghai Luo, Jingdai Wang, Binbo Jiang, Shufang Wang, Guodong Han
  • Patent number: 9000114
    Abstract: A process for continuously mixing at least two fluid streams and splitting the stream of the mixture into at least two partial streams, comprising a) providing streams of the at least two fluids via separated conduits; b) combining the streams of the fluids and forming a homogeneous mixture; c) measuring the pressure in the conduit conveying the mixture of the fluids; d) splitting the stream of the mixture of the fluids into at least two partial streams and feeding each of the partial streams to a conduit equipped with a flow control device controlled by a controller; and e) adjusting the flow rates of the partial streams of the mixture of the fluids by feeding the pressure information measured in step c) as process variable to the controllers controlling the flow control devices, a process for feeding a mixture of at least two fluids via at least two feeding points, an apparatuses for carrying out such processes and a process for polymerizing olefins.
    Type: Grant
    Filed: August 2, 2011
    Date of Patent: April 7, 2015
    Assignee: Basell Polyolefine GmbH
    Inventors: Michael Olmscheid, Manfred Hecker, Rainer Karer, Paulus-Petrus Maria De Lange
  • Patent number: 8992840
    Abstract: Multiple components are selected, conveyed, and measured in a polymerization system. A control system adjusts the system variables to the desired values. Portions of the components can be fed to a pre-contactor before introduction into the polymerization reactor. The catalyst component concentrations and residence times are tightly controlled in the pre-contactor to affect product properties. The pre-contactor can be a single or multiple combinations of a CSTR or plug flow pre-contactors.
    Type: Grant
    Filed: September 8, 2009
    Date of Patent: March 31, 2015
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: David H. Burns, Donald W. Verser, Elizabeth A. Benham, Max P. McDaniel, John D. Hottovy, Clay K Thurman, David A. Lockman, John O. Lawmaster, Matthew T. Haberly, Thomas H. Smith, Jerry T. Lanier, Matthew G. Thorn, Penny A. Zellers
  • Publication number: 20150087793
    Abstract: A catalyst composition may include a precontacted mixture of an olefin polymerization catalyst and an agent including an ammonium salt. The catalyst activity of the catalyst composition in the presence of water may be greater than if no ammonium salt were present in the catalyst composition. The ammonium salt may include a tetraalkylammonium salt, and the olefin polymerization catalyst may include a metallocene compound.
    Type: Application
    Filed: September 25, 2013
    Publication date: March 26, 2015
    Inventors: Albert P. Masino, Randall S. Muninger, Max P. McDaniel, Eric D. Schwerdtfeger, Qing Yang, Graham R. Lief
  • Publication number: 20150087779
    Abstract: Methods of forming a polyarylene sulfide and systems as may be utilized in carrying out the methods are described. Included in the formation method is a filtration process for treatment of a mixture, the mixture including a polyarylene sulfide, a salt byproduct of the polyarylene sulfide formation reaction, and a solvent. The filtration process includes maintaining the downstream side of the filter medium at an increased pressure. The downstream pressure can such that the boiling temperature of the mixture at the downstream pressure can be higher than the temperature at which the polyarylene sulfide is insoluble in the solvent.
    Type: Application
    Filed: September 9, 2014
    Publication date: March 26, 2015
    Inventors: Hendrich Chiong, Michael Haubs, Damian Feord, Mark Shatzer, Jacob Grayson
  • Publication number: 20150086429
    Abstract: The present disclosure provides a system for recovering emissions generated from an olefin polymerization process, comprising: a devolatilizer for receiving a fresh sweep gas and emissions generated from the olefin polymerization process and outputting a first fluid and a polyolefin resin; a compression refrigeration unit including a compression device and a first heat exchange device, for receiving said first fluid and outputting a first gas-liquid mixture; a first gas-liquid separation device for separating the first gas-liquid mixture and outputting a first recovery product and a first gas phase composition; a first gas separation device for receiving the first gas phase composition, removing small molecular substances therefrom, and outputting a composition rich in small molecular gases and a second gas phase composition rich in hydrocarbons; and a second gas separation device having a second heat exchange device, a second gas-liquid separation device, and a first gas expansion device.
    Type: Application
    Filed: April 24, 2014
    Publication date: March 26, 2015
    Applicant: Hangzhou Shuang'an Science and Technology Company
    Inventor: Zhongwei YANG
  • Publication number: 20150079302
    Abstract: The present invention provides a patterned polarization converter having multiple domains that can be used to convert input linear polarized light to output light with spatially varying polarization states, including domains that produce linearly polarized light and domains that produce circular polarized light based on the patterning of the domains. A patterned polarization converter having multiple domains may be used in a polarization sensor application capable of detecting the polarization state of input light. The present invention further provides patterned radial and azimuthal polarization converters, which have utility in applications such as optical tweezers. Additionally, patterned polarization converters may be used to fabricate more patterned polarization converters having the same pattern using one-step photoalignment to copy the pattern of an existing patterned polarization converter to an unpatterned photoalignment layer.
    Type: Application
    Filed: November 25, 2014
    Publication date: March 19, 2015
    Inventors: Tao Du, Vladimir Grigorievich Chigrinov, Hoi Sing Kwok
  • Publication number: 20150065681
    Abstract: Disclosed herein is a method of preparing prepolymer particles. The method includes injecting a prepolymer in a solution state by bottom-up type injection to form prepolymer particles by removing a solvent from the prepolymer in a solution state. The method can prepare prepolymer particles, which can be used in solid-state polymerization, using a bottom-up type flash process.
    Type: Application
    Filed: August 22, 2014
    Publication date: March 5, 2015
    Inventors: Jin Kyu KIM, So Young KWON, Sang Kyun IM, Ki Yon LEE, Suk Min JUN, Gook Geon BAE
  • Patent number: 8969638
    Abstract: A styrene monomer reclamation process and system is described. The styrene monomer reclamation process includes providing a waste plastic. The waste plastic includes styrenic polymers. The waste plastic is formed into polymer particles. At least a portion of the polymer particles are dissolved in a solvent to form a polymer stream. The dissolved polymer particles are depolymerized to form a styrene monomer stream.
    Type: Grant
    Filed: September 28, 2011
    Date of Patent: March 3, 2015
    Assignee: Fina Technology, Inc.
    Inventors: Jon Tippet, James R. Butler, James Assef, John Ashbaugh, Jason Clark, Michel Duc, Jean-Bernard Cary
  • Patent number: 8956573
    Abstract: The present invention relates to an apparatus and process for polymerizing olefins. One embodiment comprises polymerizing at least one monomer in a first loop reactor in the presence of a catalyst to produce a first polyolefin fraction. A portion of the first polyolefin fraction is transferred to a second loop reactor, connected in series with the first loop reactor. The process further comprises polymerizing in the second loop reactor at least one monomer in the presence of a catalyst to produce a second polyolefin fraction in addition to the first polyolefin fraction. The combination of the first and second polyolefin fractions can produce a polymer resin fluff having bimodal molecular weight distribution.
    Type: Grant
    Filed: May 21, 2014
    Date of Patent: February 17, 2015
    Assignee: Total Research & Technology Feluy
    Inventors: Louis Fouarge, Eric Damme, Olivier Miserque, Daniel Siraux, Philippe Bodart, Andre Lewalle, Marc Van der Auwera, Frans Van den Brande, Giacomo Conti, Hugo Vandaele, Mark Verleysen, Carl Van Camp, Etienne Laurent, Philippe Marechal, Marc Moers, Leopold D'Hooghe, Marjan Sillis, Kai Hortman, Pascal Folie, Renaud Oreins
  • Publication number: 20150038669
    Abstract: A process to produce polycarbamate comprising providing urea in liquid form; and adding the urea in liquid form to a polyol in a reduced gradient profile to form polycarbamate product is provided. Also provided are: (a) a reaction product of the process and (b) an apparatus for operating the process.
    Type: Application
    Filed: July 31, 2013
    Publication date: February 5, 2015
    Applicant: Dow Global Technologies LLC
    Inventors: Xinrui Yu, Yiyong He, Ronald B. Leng
  • Publication number: 20150038656
    Abstract: The invention relates to a process for preparing polymers from monomers and/or oligomers by adding a liquid comprising the monomers and/or oligomers dropwise to a continuous liquid phase in a reactor, the continuous liquid phase being immiscible with the liquid comprising the monomers and/or oligomers, and the monomers and/or oligomers reacting in the continuous liquid phase to give the polymer. The liquid comprising the monomers and/or oligomers is shaped to droplets outside the continuous liquid phase, which are subsequently introduced into the continuous liquid phase. The invention further relates to a reactor for performing the process, comprising a tube through which a continuous liquid phase flows, and means of generating droplets, the means of generating droplets being arranged such that the droplets are generated outside the continuous liquid phase and then introduced into the continuous liquid phase.
    Type: Application
    Filed: October 16, 2014
    Publication date: February 5, 2015
    Inventors: Mohammed Abboud, Philippe Desbois, Norbert Gmaehle, Herbert Roemer, Thilo Krebs, Dennis Lösch
  • Publication number: 20150031850
    Abstract: The present invention relates to a method as well as an apparatus for fixed phase polycondensation of polyesters, preferably polyethylene terephthalate and/or copolymers thereof, characterised in that the fixed phase polycondensation is performed with polyester prepolymer particles in a reaction chamber in which an absolute pressure predominates in the range from 10 mbar to 200 mbar, preferably 20 to 150 mbar, and a process gas flow in the range of an R-value of 0.005 to 0.05.
    Type: Application
    Filed: December 18, 2012
    Publication date: January 29, 2015
    Inventor: Andreas Christel
  • Publication number: 20150018448
    Abstract: The present disclosure generally provides methods and apparatus for efficiently crosslinking silicon carbide fiber precursor polymers with electron beam radiation. The methods and apparatus utilize a platform containing silicon carbide fiber precursor polymer. The temperature of the platform is regulated while the silicon carbide fiber precursor polymer is irradiated to thereby regulate the temperature of the irradiated silicon carbide fiber precursor polymer thereon. In this way, the temperature of the irradiated silicon carbide fiber precursor polymer is regulated via the platform both during and after it is subjected to radiation. At least one of the platform and the e-beam radiation mechanism may be translated with respect to the other to irradiate different portions of the silicon carbide fiber precursor polymer and, ultimately, the entirety of the silicon carbide fiber precursor polymer contained on the platform.
    Type: Application
    Filed: July 9, 2013
    Publication date: January 15, 2015
    Inventors: Peter Kennedy DAVIS, Slawomir RUBINSZTAJN