Polymerization Involving Specified Mixing, Stirring, Agitating, Or Movement Of Material Patents (Class 526/88)
  • Patent number: 10626202
    Abstract: Monomodal copolymers of ethylene and molding compositions comprising such copolymers, wherein the copolymers have a density determined according to DIN EN ISO 1183-1, variant A in the range from 0.938 to 0.944 g/cm3, a melt index MFR21 determined according to ISO 1133 at 190° C. under a load of 21.6 kg in the range from 12 to 17 g/10 min, a weight average molar mass Mw in the range from 140 000 g/mol to 330 000 g/mol, a polydispersity Mw/Mn in the range from 9 to 17, and a content of comonomer side chains per 1000 carbon atoms Cx equal to or above a value defined via equation (I) Cx=128.7?134.62×d?, wherein d? is the numerical value of the density of the copolymer in g/cm3, the use of the copolymers for producing injection-molded articles, as well as injection-molded articles comprising the copolymers, and process for the preparation of such monomodal copolymers.
    Type: Grant
    Filed: January 15, 2008
    Date of Patent: April 21, 2020
    Assignee: Basell Polyolefine GmbH
    Inventors: Klaus Foettinger, Manfred Hecker, Lothar Berger, Rainer Karer, Dieter Lilge
  • Patent number: 10549251
    Abstract: The present disclosure relates generally to a system having a reactor system with a polymerization reactor and a feed system fluidly coupled to a feed inlet of the reactor. The feed system supplies components to the reactor via the feed inlet, and the reactor has a flow path that continuously conveys the components through the reactor and subjects the components to polymerization conditions to produce a polymer. The system also has an analysis system coupled to the reactor for online monitoring of a particle size of the polymer. Further, the system includes a control system, coupled to the analysis and feed systems, that receives a signal from the analysis system indicative of the monitored particle size of the polymer and adjusts an operating parameter of the feed system to control a flow rate of at least one of the components to the reactor based at least on the signal.
    Type: Grant
    Filed: September 20, 2017
    Date of Patent: February 4, 2020
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Eric D. Schwerdtfeger, Daniel G. Hert, Eric J. Netemeyer
  • Patent number: 10518230
    Abstract: Parallel uses of microfluidic methods and devices for focusing and/or forming discontinuous sections of similar or dissimilar size in a fluid are described. In some aspects, the present invention relates generally to flow-focusing-type technology, and also to microfluidics, and more particularly parallel use of microfluidic systems arranged to control a dispersed phase within a dispersant, and the size, and size distribution, of a dispersed phase in a multi-phase fluid system, and systems for delivery of fluid components to multiple such devices.
    Type: Grant
    Filed: October 7, 2016
    Date of Patent: December 31, 2019
    Assignee: President and Fellows of Harvard College
    Inventors: David A. Weitz, Mark Romanowsky, Adam R. Abate
  • Patent number: 10457753
    Abstract: An eductor, a process and apparatus for gas phase polymerization of olefins in a polymerization reactor are disclosed. The process and apparatus employ an eductor which has an inlet which makes a bend of less than about 90° toward the outlet after entering the mixing chamber of the eductor.
    Type: Grant
    Filed: October 11, 2017
    Date of Patent: October 29, 2019
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Jeffrey S. Lowell, Gregory G. Hendrickson, Ralph J. Price
  • Patent number: 10370461
    Abstract: A reverse-phase suspension polymerization process for the manufacture of polymer beads comprising forming aqueous monomer beads comprising an aqueous solution of water-soluble ethylenically unsaturated monomer or monomer blend and polymerizing the monomer or monomer blend, to form polymer beads while suspended in a non-aqueous liquid, and recovering polymer beads, in which the process comprises providing in a vessel (1) a volume (2) of non-aqueous liquid wherein the volume of non-aqueous liquid extends between at least one polymer bead discharge point (3) and at least one monomer feed point (4), feeding the aqueous monomer or monomer blend through orifices (5) into, or onto, the non-aqueous liquid to form aqueous monomer beads, allowing the aqueous monomer beads to flow towards the polymer bead discharge point initiating polymerization of the aqueous monomer beads to form polymerizing beads, wherein the polymerizing beads form polymer beads when they reach the polymer bead discharge point, removing a suspensi
    Type: Grant
    Filed: July 29, 2014
    Date of Patent: August 6, 2019
    Assignee: BASF SE
    Inventors: Pascal Hesse, Aleksandra Jelicic, Gabriela Eugenia Fonseca Zepeda, Robert Haschick, Shankara Narayanan Keelapandal Ramamoorthy, Gareth Ian Naylor, John Scott Barratt, Oliver Soetje, Marcel Lievre, Florian Rainau, Mark Lebkuecher
  • Patent number: 9902511
    Abstract: Disclosed herein is a transformation system to create a nutritional substance product that obtains information regarding the nutritional substance components to be transformed, the desired transformation, and the desired properties, including nutritional content, of the transformed nutritional substance, and dynamically modifies the transformation in response to this information to optimize a nutritional, organoleptic or aesthetic value of the nutritional substance product after it has been prepared for consumption. Various component nutritional substances are individually or collectively transformed and preserved, then provided to consumers or conditioners in a format allowing retrieval of preparation instructions unique to the individual nutritional product at the time of preparation and intended to optimize a nutritional, organoleptic, or aesthetic value targeted by the transformer during transformation.
    Type: Grant
    Filed: November 21, 2012
    Date of Patent: February 27, 2018
    Assignee: Iceberg Luxembourg S.A.R.L.
    Inventor: Eugenio Minvielle
  • Patent number: 9481149
    Abstract: Provided is a resin article produced by melt processing and having layers formed by a layer-separation. The resin article may include a first resin layer, a second resin layer formed on the first resin layer and an interface layer including a first resin and a second resin and formed between the first resin layer and the second resin layer. The resin article may have improved mechanical and surface characteristics. Further, since coating or plating is not required for manufacturing a resin article, a manufacturing time and/or cost can be reduced, and productivity can be increased.
    Type: Grant
    Filed: November 28, 2012
    Date of Patent: November 1, 2016
    Assignee: LG CHEM, LTD.
    Inventors: Houng Sik Yoo, Hak Shin Kim, Jin Young Ryu, Chong Kyu Shin, Young Jun Hong, Jeong Min Kim, Eun Joo Choi
  • Patent number: 9415530
    Abstract: Speriodal polymer beads having a uniform size are prepared by polymerizing uniformly sized monomer droplets formed by dispersing a polymerizable monomer phase over a cross-flow membrane into an aqueous phase. A shear force is provided at a point of egression of the polymerizable monomer phase into the aqueous phase, the direction of shear substantially perpendicular to the direction of egression of the monomer phase. The polymer beads can be employed in applications where beads having uniform diameters of 10 to 180 ?m are useful.
    Type: Grant
    Filed: January 6, 2012
    Date of Patent: August 16, 2016
    Assignee: Purolite Corporation
    Inventors: Junji Fukuda, Adrian Burt, Serguei Rudolfovich Kosvintsev
  • Patent number: 9248429
    Abstract: A process for producing water-absorbing polymer particles by polymerizing an aqueous monomer solution in a polymerization reactor with at least two axially parallel rotating shafts, wherein the polymerization is performed in the presence of an inert gas and under positive pressure.
    Type: Grant
    Filed: June 12, 2013
    Date of Patent: February 2, 2016
    Assignee: BASF SE
    Inventors: Monte Peterson, Karl J. Possemiers, Ronny De Kaey, Dominicus van Esbroeck, Rüdiger Funk
  • Patent number: 9181362
    Abstract: The instant invention is a polyethylene composition, method of producing the same, articles made therefrom, and method of making the same. The polyethylene composition according to the instant invention comprises (1) less than or equal to 100 percent by weight of the units derived from ethylene; and (2) less than 15 percent by weight of units derived from one or more ?-olefin comonomers. The polyethylene composition according the instant invention has a density in the range of 0.907 to 0.975 g/cm3, a molecular weight distribution (Mw/Mn) in the range of 1.70 to 3.62, a melt index (I2) in the range of 2 to 1000 g/10 minutes, a molecular weight distribution (Mz/Mw) in the range of less than 2.5, and a vinyl unsaturation of less than 0.06 vinyls per one thousand carbon atoms present in the backbone of the composition.
    Type: Grant
    Filed: June 12, 2013
    Date of Patent: November 10, 2015
    Assignee: Dow Global Technologies LLC
    Inventors: William J. Michie, Jr., Mark B. Davis, Nathan J. Wiker, Debra R. Wilson, Peter Schindler, John W. Garnett, IV
  • Patent number: 9149783
    Abstract: A device for producing ethoxylation derivatives includes an assistant circulation loop with lower starting quantity is added on the base of the main circulation loop, and the assistant circulation pump is started first when slight chain initial dose is added with low flow rate of the ethylene oxide and high growth rate of polyreation; when the amount of reactant gets to the starting quantity of the main circulation pump, the main circulation loop is started with high flow rate of ethylene oxide. The two circulation loops cooperate with each other shorten reaction time and high yield in one batch; a pre-reaction cavity with smaller inner diameter than that of the main body of the reactor is extended from the bottom of the main body of the device, so that lower chain initial dose can start the assistant circulation pump, and then start the assistant circulation loop.
    Type: Grant
    Filed: January 27, 2014
    Date of Patent: October 6, 2015
    Assignee: XIAMEN JU SHENG MECHANICAL ENGINEERING CO., LTD.
    Inventors: I-Min Tsai, Kun Li, Xiaobin Wang, Yanzhen Huang, Kechang Li, Weiming Wu
  • Patent number: 9095832
    Abstract: Monomer solution and liquid solution immiscible with the monomers in the monomer solution are cocurrently jetted upwardly in a pulsating manner in a reaction vessel. Monomer droplets are allowed to rise up in a controlled and smooth manner under the dynamic forces exerted by differential flow rate and differential pressure between the monomer and liquid solutions and the differential densities between the monomer and liquid solutions without causing coalescence, agglomeration and breakup of the monomer droplets and to stabilize by partial polymerization of the droplets at 50-60° C. The monomer droplets flow out horizontally into a polymerization reactor and get polymerized in the polymerization reactor under agitation at 80-85° C. The polymer beads are dried at 80-100° C. and sieved.
    Type: Grant
    Filed: July 21, 2014
    Date of Patent: August 4, 2015
    Assignee: Thermax Limited
    Inventors: Apte Ashutosh, Naik Shirish
  • Patent number: 9079990
    Abstract: Copolymer are formed by polymerizing C4 to C7 isoolefin monomers and alkyl-styrene monomers. The method comprises first providing feed streams into a reactor. The various feed streams provide monomers, a polar diluent or polar diluent mixture, and a catalyst system into the reactor. In the reactor, the feed streams contact one another so that the monomers form a polymer in a stable slurry, wherein the amount of polymer in the slurry yields a slurry concentration greater than 22 wt %. The ratio of moles of polymer formed per mole initiator is in the range of 0.25 to 4.0 moles polymer per mole of initiator.
    Type: Grant
    Filed: June 1, 2010
    Date of Patent: July 14, 2015
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Timothy D. Shaffer, Deborah J. Davis, James P. Stokes
  • Patent number: 9072809
    Abstract: Provided herein are in vivo gelling ophthalmic pre-formulations forming a biocompatible retinal patch comprising at least one nucleophilic compound or monomer unit, at least one electrophilic compound or monomer unit, and optionally a therapeutic agent and/or viscosity enhancer. In some embodiments, the retinal patch at least partially adheres to the site of a retinal tear. Also provided herein are methods of treating retinal detachment by delivering an in vivo gelling ophthalmic pre-formulation to the site of a retinal tear in human eye, wherein the in vivo gelling ophthalmic pre-formulation forms a retinal patch.
    Type: Grant
    Filed: May 8, 2014
    Date of Patent: July 7, 2015
    Assignee: MEDICAL BIOSCIENCES LLC
    Inventors: Syed H. Askari, Yeon S. Choi
  • Patent number: 9029485
    Abstract: A process for producing water-absorbing polymer particles by polymerizing droplets of a monomer solution in a surrounding gas phase in a reaction chamber, wherein the monomer solution is metered into the reaction chamber via at least one bore, and the diameter is from 210 to 290 ?m per bore and the metering rate is from 0.9 to 5 kg/h per bore.
    Type: Grant
    Filed: August 29, 2013
    Date of Patent: May 12, 2015
    Assignee: BASF SE
    Inventors: Marco Krüger, Stefan Blei, Wilfried Heide, Matthias Weismantel, Uwe Stueven
  • 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: 8981022
    Abstract: There is provided a method of producing a composition having a continuous phase and a disperse phase dispersed finely with low polydispersity in the continuous phase, with high production efficiency. The composition is produced by the production method including the steps of: (A) passing the swirling flow of the continuous phase liquid into a cylindrical body the circumferential surface of which is either in part or entirely formed by a porous membrane, (B1) supplying the disperse phase fluid to the swirling flow via the porous membrane to form the particles of the disperse phase on the porous membrane, and (B2) detaching the disperse phase particles formed on the porous membrane by the shear force of the swirling flow.
    Type: Grant
    Filed: December 3, 2010
    Date of Patent: March 17, 2015
    Assignee: Kyushu University, National University Corporation
    Inventor: Mitsuya Shimoda
  • Patent number: 8946361
    Abstract: A method of making a polyisobutylene polymer in a recirculating loop reactor with one or more reaction tubes in contact with a heat transfer medium includes controlling the delta P and polymerization reaction to provide a linear velocity of the reaction mixture of at least 11 ft/sec in the one or more tubes of the loop reactor and/or controlling the delta P and polymerization reaction of steps (b) and (c) to provide a recirculation ratio of the recirculation rate to the feed rate of at least 30:1. Typically, the process utilizes a recirculating pump operating at a at a pressure differential of from 35 psi to 70 psi.
    Type: Grant
    Filed: October 10, 2012
    Date of Patent: February 3, 2015
    Assignee: TPC Group LLC
    Inventors: Sohel K. Shaikh, Alfred Chiu, Patrick L. Bradley, Gilbert D. Valdez, Peggy J. Macatangay
  • Patent number: 8921462
    Abstract: A rubber composition with disperse phase particles containing poly(phenylene ether) can be formed by a method that includes melt blending an uncured rubber with a poly(phenylene ether) composition containing a poly(phenylene ether) and an oil to form an uncured rubber composition, then curing the uncured rubber composition. Before being blended with the rubber, the poly(phenylene ether) composition exhibits a glass transition temperature of about 40 to about 140° C., and during blending with the rubber, the oil component of poly(phenylene ether) composition migrates from the poly(phenylene ether) composition to the rubber, leaving a poly(phenylene ether)-containing disperse phase that gives rise to a second hysteresis peak temperature of about 160 to about 220° C. as measured by dynamic mechanical analysis of the cured rubber composition.
    Type: Grant
    Filed: December 16, 2013
    Date of Patent: December 30, 2014
    Assignee: SABIC Global Technologies B.V.
    Inventors: Scott Michael Fisher, Qiwei Lu, William Eugene Pecak, Michael Joseph O'Brien
  • Patent number: 8916659
    Abstract: Provided are processes and apparatuses for continuous solution polymerization which can mitigate fouling during the production of propylene-based polymers.
    Type: Grant
    Filed: October 31, 2013
    Date of Patent: December 23, 2014
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Quintin P. Costin, Periagaram S. Ravishankar
  • Patent number: 8901236
    Abstract: A process for continuously making a terpolymer or a tetrapolymer utilizing ethylene, an alpha olefin, and at least one polyene. This process allows for the creation of products with high polyene contents and broad molecular weight distributions while utilizing a continuous flow reactor and a known catalyst. The process allows for these products to be made without gelling, or fouling of the reactor.
    Type: Grant
    Filed: October 8, 2013
    Date of Patent: December 2, 2014
    Assignee: Lion Copolymer Geismar, LLC
    Inventors: Willie Charles Burton, Solomon H. K. Tang, Garrett Doucet
  • Patent number: 8901238
    Abstract: A process and the resultant product from the process for continuously making an EPDM utilizing ethylene, propylene, and dienes. This process allows for the creation of products with high diene contents and broad molecular weight distributions while utilizing a continuous flow reactor and a known catalyst. The process allows for these products to be made without gelling, or fouling of the reactor, which are problems known in the art.
    Type: Grant
    Filed: October 8, 2013
    Date of Patent: December 2, 2014
    Assignee: Lion Copolymer Geismar, LLC
    Inventors: Solomon H. K. Tang, Willie Charles Burton, Garrett Doucet
  • Publication number: 20140329960
    Abstract: Styrenic (meth)acrylic oligomers that are prepared at lower temperature than conventional solid grade oligomers, or are hydrogenated, contain fewer terminal vinylic unsaturations, when compared to such conventional styrenic (meth)acrylic oligomers prepared by the customary high temperature processes. Styrenic (meth)acrylic oligomers that contain fewer terminal vinylic unsaturations demonstrate improved thermal stability and may provide improved resistance to UV weathering compared to the conventional and non-hydrogenated styrenic (meth)acrylic oligomers.
    Type: Application
    Filed: July 17, 2014
    Publication date: November 6, 2014
    Inventors: Timothy D. Klots, Rafael Galvan, Jon A. Debling
  • Patent number: 8876942
    Abstract: Various methods and systems for removing particulates from a cycle gas stream, e.g., in a reactor system, are provided. In certain embodiments, the methods are performed in conjunction with a polymerization reactor system such as a gas-phase reactor system.
    Type: Grant
    Filed: December 10, 2008
    Date of Patent: November 4, 2014
    Assignee: Univation Technologies, LLC
    Inventors: Randall L. Force, William J. Blickley, Edward A. Leach, Robert O. Hagerty
  • Patent number: 8853334
    Abstract: Process and apparatus for discharging polyolefin particles from a gas-phase polymerization reactor of a pressure from 1.0 MPa to 10 MPa to a discharge vessel of a pressure from 0.1 MPa to 1.0 MPa wherein the discharging is carried out discontinuously through at least two discharge lines in which the polyolefin particles are transported horizontally or upwards.
    Type: Grant
    Filed: June 19, 2012
    Date of Patent: October 7, 2014
    Assignee: Basell Polyolefine GmbH
    Inventors: Manfred Hecker, Paulus-Petrus Maria De Lange, Klaus Berhalter, Thomas Andreas Hora, Axel Hamann
  • Patent number: 8853333
    Abstract: The invention relates to a process for operating a mixing kneader, comprising one or more shafts on whose surfaces are disposed kneading bars and which are surrounded by a casing, comprising the following steps: (a) supplying reactants at an addition site in the mixing kneader, (b) converting the reactants in an exothermic reaction, the reaction at first forming a coherent kneadable intermediate, (c) tearing and dividing the coherent kneadable intermediate to form a product, the exothermic reaction optionally continuing during the tearing and division, (d) withdrawing the product at a withdrawal site in the mixing kneader, wherein at least one of the shafts and/or the casing is heated to a temperature above 20° C. during the operation of the mixing kneader.
    Type: Grant
    Filed: May 6, 2013
    Date of Patent: October 7, 2014
    Assignee: BASF SE
    Inventors: Oskar Stephan, Monte Peterson, Karl J. Possemiers, Steven Lippens
  • Patent number: 8846831
    Abstract: The present invention relates to a method for feeding metallocene catalyst slurry to an olefin polymerization loop reactor (1) using a positive displacement device (5) positive displacement device comprising a first chamber and a second chamber, each chamber having an inlet and an outlet and each chamber comprising an ball arranged between the walls of said chamber, wherein said chambers are connected to each other by a pump chamber operably connected to a pump, wherein, the difference between the diameter of said ball and the diameter of said chamber is comprised between 5 to 200 times the average particle size (d50) of said catalyst.
    Type: Grant
    Filed: July 29, 2011
    Date of Patent: September 30, 2014
    Assignee: Total Research & Technology Feluy
    Inventors: Daan Dewachter, Alain Brusselle
  • Patent number: 8816026
    Abstract: Monomer solution and liquid solution immiscible with the monomers in the monomer solution are cocurrently jetted upwardly in a pulsating manner in a reaction vessel. Monomer droplets are allowed to rise up in a controlled and smooth manner under the dynamic forces exerted by differential flow rate and differential pressure between the monomer and liquid solutions and the differential densities between the monomer and liquid solutions without causing coalescence, agglomeration and breakup of the monomer droplets and to stabilize by partial polymerization of the droplets at 50-60° C. The monomer droplets flow out horizontally into a polymerization reactor and get polymerized in the polymerization reactor under agitation at 80-85° C. The polymer beads are dried at 80-100° C. and sieved.
    Type: Grant
    Filed: February 4, 2013
    Date of Patent: August 26, 2014
    Assignee: Thermax Limited
    Inventors: Apte Ashutosh, Naik Shirish
  • Patent number: 8790579
    Abstract: Methods and systems for preparing catalyst, such as chromium catalysts, are provided. The valence of at least a portion of the catalyst sent to an activator is changed from Cr(III) to Cr(VI). The catalyst is prepared or activated continuously using a fluidization bed catalyst activator.
    Type: Grant
    Filed: December 11, 2012
    Date of Patent: July 29, 2014
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Elizabeth A. Benham, Max P. McDaniel, Ted H. Cymbaluk, Charles K. Newsome, Charles R. Nease, H. Kenneth Staffin, Thomas R. Parr
  • Patent number: 8765885
    Abstract: Apparatus and process for gas phase polymerisation of olefins. The apparatus includes (a) a reaction zone having a grid at its base, (b) an inlet located in the lower half of the reaction zone for introducing a reaction gas to the reaction zone, (c) an outlet located in the upper half of the reaction zone for removing the reaction gas from the reaction zone, and (d) a solids separation unit having an inlet fluidly connected to the outlet for removing the reaction gas from the reaction zone. The inlet of the solids separation unit is located at a vertical height lower than the outlet for removal of reaction gas from the reaction zone and such that the angle to the horizontal of a straight line drawn between the inlet of the solids separation unit and the outlet for removal of reaction gas from the reaction zone is greater than 20°.
    Type: Grant
    Filed: November 29, 2011
    Date of Patent: July 1, 2014
    Assignee: Ineos Sales (UK) Limited
    Inventors: Andrew David Bell, Kevin Peter Ramsay
  • Patent number: 8742026
    Abstract: The invention relates to a process for producing water-absorbing polymer particles with improved permeability, comprising the steps of polymerization, drying, grinding, classification and thermal surface postcrosslinking, with pneumatic conveying between grinding and classification.
    Type: Grant
    Filed: March 2, 2012
    Date of Patent: June 3, 2014
    Assignee: BASF SE
    Inventors: Matthias Weismantel, Markus Braun
  • Patent number: 8735517
    Abstract: Provided is a stirred tank polymerization reactor system having a reactor tank, a stirring assembly including a rotatable shaft that extends through a wall of the tank, and a triple barrier mechanical seal. The mechanical seal includes an outer cylinder mounted in the wall of the tank, an inner cylinder that is rotatable relative to the outer cylinder and connected to the shaft, and first, second, and third fluid barrier seals mounted between the outer and inner cylinders at different positions along the axis of rotation of the inner cylinder. First and second sources of pressurized barrier fluid are connected between the first and second pressure fluid barrier seals and the second and third barrier seals, respectively. The three barrier seals advantageously “step down” the differential pressure experienced by the uppermost barrier seals, substantially reducing mechanical stresses experienced by the annular sealing rings and seats.
    Type: Grant
    Filed: June 2, 2011
    Date of Patent: May 27, 2014
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Christopher K. Morgan, Shiraz A. H. Pradhan, Michael W. Ackman
  • Patent number: 8722818
    Abstract: Described herein are methods for monitoring and restoring electrical properties of polymerization reactor wall films. The method may comprise using a reactor wall monitor to monitor and determine an electrical property, such as the bed voltage or breakdown voltage, of the wall film. The method may further comprise adding continuity additive to the reactor and/or adjusting the feed rate of continuity additive being added to the reactor in response to the measured electrical property.
    Type: Grant
    Filed: May 20, 2011
    Date of Patent: May 13, 2014
    Assignee: Univation Technologies, LLC
    Inventors: Eric J. Markel, William A. Lamberti, Harry W. Deckman
  • Patent number: 8722822
    Abstract: This invention provides an aqueous emulsion, which comprises a polyvinyl alcohol-based resin, as the dispersant, and a polymer comprising a structural unit derived from an ethylenically unsaturated monomer, as the dispersoid, from which a film having excellent transparency can be obtained, and which is excellent in mechanical stability, chemical stability, freezing stability and storage stability, and a method for producing the same, and relates to an aqueous emulsion which has an average particle size of the dispersoid of from 100 to 450 ?m and an apparent grafting efficiency of the polyvinyl alcohol-based resin of from 65 to 75% based on the dispersoid, and a method for producing the same.
    Type: Grant
    Filed: November 26, 2008
    Date of Patent: May 13, 2014
    Assignee: The Nippon Synthetic Chemical Industry Co., Ltd.
    Inventors: Mitsuo Shibutani, Masahiro Saito, Shusaku Mandai, Takaaki Murahashi
  • Patent number: 8722820
    Abstract: Catalysts and methods for making and using the same are provided. The method for fabricating a catalyst may includes contacting a supported catalyst with a monomer under conditions that reduce an overall charge of the catalyst to less than about 75% of an initial charge of the catalyst. A method for polymerization may include introducing a pre-polymerized catalyst and one or more olefins into a gas phase fluidized bed reactor, operating the reactor at conditions sufficient to produce a polyolefin, wherein the polymerization is carried out in the substantial absence of any continuity additives.
    Type: Grant
    Filed: December 7, 2010
    Date of Patent: May 13, 2014
    Assignee: Univation Technologies, LLC
    Inventors: Maria A. Apecetche, Maria Pollard, Robert O. Hagerty, Michael D. Awe, Kevin J. Cann, Jose F. Cevallos-Candau, F. David Hussein
  • Publication number: 20140080981
    Abstract: Monomer solution and liquid solution immiscible with the monomers in the monomer solution are cocurrently jetted upwardly in a pulsating manner in a reaction vessel. Monomer droplets are allowed to rise up in a controlled and smooth manner under the dynamic forces exerted by differential flow rate and differential pressure between the monomer and liquid solutions and the differential densities between the monomer and liquid solutions without causing coalescence, agglomeration and breakup of the monomer droplets and to stabilize by partial polymerization of the droplets at 50-60° C. The monomer droplets flow out horizontally into a polymerization reactor and get polymerized in the polymerization reactor under agitation at 80-85° C. The polymer beads are dried at 80-100° C. and sieved.
    Type: Application
    Filed: February 4, 2013
    Publication date: March 20, 2014
    Applicant: Thermax Limited
    Inventors: Apte Ashutosh, Naik Shirish
  • Patent number: 8674004
    Abstract: A rubber composition with disperse phase particles containing poly(phenylene ether) can be formed by a method that includes melt blending an uncured rubber with a poly(phenylene ether) composition containing a poly(phenylene ether) and an oil to form an uncured rubber composition, then curing the uncured rubber composition. Before being blended with the rubber, the poly(phenylene ether) composition exhibits a glass transition temperature of about 40 to about 140° C., and during blending with the rubber, the oil component of poly(phenylene ether) composition migrates from the poly(phenylene ether) composition to the rubber, leaving a poly(phenylene ether)-containing disperse phase that gives rise to a second hysteresis peak temperature of about 160 to about 220° C. as measured by dynamic mechanical analysis of the cured rubber composition.
    Type: Grant
    Filed: August 27, 2013
    Date of Patent: March 18, 2014
    Assignee: Sabic Innovative Plastics IP B.V.
    Inventors: Scott Michael Fisher, Qiwei Lu, William Eugene Pecak, Michael Joseph O'Brien
  • Patent number: 8669334
    Abstract: The invention is directed to a process for the gas phase polymerization of one or more olefin monomers in a fluidized bed reactor in a dry mode or in a (super) condensed mode with a gas stream comprising an inert gas characterized in that the inert gas comprises a mixture of inert components: (1) nitrogen; (2) a gas heat capacity increasing agent (3) a sorption promoting agent and (4) a polymer swelling agent. The inert gas may comprise (1) 5-60% by mol nitrogen (2) 10-90% by mol ethane (3) 1-50% by mol % n-butane and (4) 0.1-10% by mol % n-pentane or iso-pentane.
    Type: Grant
    Filed: May 12, 2011
    Date of Patent: March 11, 2014
    Assignee: Saudi Basic Industries Corporation
    Inventors: Yahya Banat, Fahad Al-Obaidi, Abdul Kader Malek
  • Patent number: 8592498
    Abstract: Disclosed herein are a reaction method and a production method of an organic compound which are capable of achieving high reaction selectivity according to the purpose and a high production rate of a target substance. The methods include at least two fluids, wherein at least one kind of the fluids is a fluid containing at least one organic compound and at least one kind of the fluids other than the above fluid is a fluid containing at least one reactant in the form of a liquid or solution, and the respective fluids join together in a thin film fluid foamed between processing surfaces arranged to be opposite to each other so as to be able to approach to and separate from each other, at least one of which rotates relative to the other, whereby an organic reaction is performed in the thin film fluid.
    Type: Grant
    Filed: September 11, 2008
    Date of Patent: November 26, 2013
    Assignee: M. Technique Co., Ltd.
    Inventor: Masakazu Enomura
  • Publication number: 20130296509
    Abstract: The invention relates to a process for operating a mixing kneader, comprising one or more shafts on whose surfaces are disposed kneading bars and which are surrounded by a casing, comprising the following steps: (a) supplying reactants at an addition site in the mixing kneader, (b) converting the reactants in an exothermic reaction, the reaction at first forming a coherent kneadable intermediate, (c) tearing and dividing the coherent kneadable intermediate to form a product, the exothermic reaction optionally continuing during the tearing and division, (d) withdrawing the product at a withdrawal site in the mixing kneader, wherein at least one of the shafts and/or the casing is heated to a temperature above 20° C. during the operation of the mixing kneader.
    Type: Application
    Filed: May 6, 2013
    Publication date: November 7, 2013
    Inventors: Oskar Stephan, Monte Peterson, Karl J. Possemiers, Steven Lippens
  • Patent number: 8557937
    Abstract: A rubber composition with disperse phase particles containing poly(phenylene ether) can be formed by a method that includes melt blending an uncured rubber with a poly(phenylene ether) composition containing a poly(phenylene ether) and an oil to form an uncured rubber composition, then curing the uncured rubber composition. Before being blended with the rubber, the poly(phenylene ether) composition exhibits a glass transition temperature of about 40 to about 140° C., and during blending with the rubber, the oil component of poly(phenylene ether) composition migrates from the poly(phenylene ether) composition to the rubber, leaving a poly(phenylene ether)-containing disperse phase that gives rise to a second hysteresis peak temperature of about 160 to about 220° C. as measured by dynamic mechanical analysis of the cured rubber composition.
    Type: Grant
    Filed: June 5, 2012
    Date of Patent: October 15, 2013
    Assignee: Sabic Innovative Plastics IP B.V.
    Inventors: Scott Michael Fisher, Qiwei Lu, William Eugene Pecak, Michael J. O'Brien
  • Patent number: 8552127
    Abstract: A process for manufacturing terpolymers by polymerization of VDF (vinylidene difluoride), TrFE (trifluoroethylene), and CFE (1-chloro-1-fluoroethylene) or CTFE (chlorotrifluoroethylene) monomers in the presence of a radical polymerization initiator, characterized in that: i) an initial mixture of VDF and of TrFE, free of CFE and of CTFE, is fed into an autoclave, ii) the initiator mixed with water is injected into the autoclave so as to achieve, inside the autoclave, a pressure at least equal to 80 bar, in order to form a suspension of VDF and TrFE monomers in water, iii) a secondary mixture constituted of VDF, TrFE and CFE or CTFE is injected into the autoclave, then iv) as soon as the polymerization reaction starts, said secondary mixture is reinjected continuously into the reactor, so as to maintain therein a constant pressure of at least 80 bar.
    Type: Grant
    Filed: October 7, 2011
    Date of Patent: October 8, 2013
    Assignee: Piezotech
    Inventor: Francois Bauer
  • Patent number: 8546498
    Abstract: A process for producing water-absorbing polymer particles by polymerizing droplets of a monomer solution in a surrounding gas phase in a reaction chamber, wherein the monomer solution is metered into the reaction chamber via at least one bore, and the diameter is from 210 to 290 ?m per bore and the metering rate is from 0.9 to 5 kg/h per bore.
    Type: Grant
    Filed: July 1, 2009
    Date of Patent: October 1, 2013
    Assignee: BASF SE
    Inventors: Marco Krüger, Stefan Blei, Wilfried Heide, Matthias Weismantel, Uwe Stueven
  • Patent number: 8541520
    Abstract: The method of making high-density polyethylene with titania-iron nanofillers involves mixing a TiO2/Fe titania-iron nanofiller with a vanadium (III) complex bearing salicylaldiminato ligands polymerization catalyst in a reactor. The reactor is then charged with toluene and heated to a temperature of about 30° C. Following heating, ethylene is fed into the reactor at a fixed pressure, and a methyl aluminum dichloride cocatalyst is added to initiate in situ polymerization. Polymerization is quenched to yield high-density polyethylene with titania-iron nanofillers, which is then washed and dried. Through the addition of a TiO2/Fe nanofiller, the molecular weight, the crystallinity and the melting temperature of high-density polyethylene are all increased, while the polydispersity index (PDI) is decreased.
    Type: Grant
    Filed: January 21, 2013
    Date of Patent: September 24, 2013
    Assignee: King Fahd University of Petroleum and Minerals
    Inventors: Mamdouh Ahmad Al-Harthi, Omer Yahya Bakather, Sadhan Kumar De, Reyad Awwad Khalaf Shawabkeh
  • Patent number: 8513367
    Abstract: Method of reducing fouling in an elastomer polymerization process that includes providing a reactor capable of housing an industrial-scale elastomer polymerization reaction, and applying a mechanical force to the reactor so as to create a vibration in at least one wall of the reactor, in which fouling is reduced in the reactor. In one embodiment the reaction is an industrial scale butyl polymerization reaction and the reactor is a butyl polymerization reactor.
    Type: Grant
    Filed: November 11, 2011
    Date of Patent: August 20, 2013
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Timothy D. Shaffer, Pamela J. Wright, Limin Song
  • Patent number: 8507619
    Abstract: The invention relates to a process for the polymerization of vinyl-containing monomers such as, for example, monomeric vinyl halides, in a reaction mixture, in which process less waste is generated.
    Type: Grant
    Filed: January 26, 2006
    Date of Patent: August 13, 2013
    Assignee: Vinnolit Technologie GmbH & Co. KG
    Inventors: Ulrich Woike, Heinz Klippert, Jürgen Kirschner, Peter Kammerhofer
  • Patent number: 8507620
    Abstract: The present invention relates to a process for preparing a water absorbent resin, particularly to a process for preparing a water absorbent resin which can resolve the uneven size of the fine pulverized gel-type resin and long pulverizing time those are the problems of prior process for preparing the water absorbent resin, by carrying out the pulverizing process of the gel-type resin divided into the coarse pulverizing process which is carried out with the internal cross-linking polymerization, and the fine pulverizing process. According to the preparation process, it is possible to mass-produce the water absorbent resin showing excellent absorption under pressure and low extractable content.
    Type: Grant
    Filed: June 7, 2011
    Date of Patent: August 13, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Jun-Kyu Kim, Jong-Hyuk Kwon, Young-Jae Hur, Yun-Kyung Do
  • Publication number: 20130197170
    Abstract: The present invention is directed to a continuous process for preparing a crosslinked polymer comprising a fluoro group.
    Type: Application
    Filed: March 18, 2011
    Publication date: August 1, 2013
    Applicant: RELYPSA, INC.
    Inventor: George Tyson
  • Patent number: 8497346
    Abstract: Polymer powder vessel having a silo including a main vertical cylinder and a hopper at the bottom of the cylinder, a polymer powder which occupies the full volume of the hopper and at least a part of the volume of the cylinder, a polymer powder silo inlet pipe connected to the silo at a height located above the polymer powder, and a polymer hopper withdrawal pipe is also connected to the hopper. The polymer powder hopper withdrawal pipe is also connected to the silo at a location above the polymer powder for recirculating a part of the polymer powder within the silo.
    Type: Grant
    Filed: December 24, 2010
    Date of Patent: July 30, 2013
    Assignee: Ineos Commercial Services UK Limited
    Inventors: Jean-Louis Chamayou, Kevin Peter Ramsay
  • Patent number: 8497336
    Abstract: A process for producing water-absorbing polymer particles with a low centrifuge retention capacity by polymerizing in a continuous kneading reactor under an inert gas volume flow of at most 10 m3/h per m3 of reactor volume.
    Type: Grant
    Filed: March 16, 2009
    Date of Patent: July 30, 2013
    Assignee: BASF SE
    Inventors: Matthias Weismantel, Rüdiger Funk, Ronny De Kaey, Karl J. Possemiers