Material Contains Transition Metal Or Compound Thereof Patents (Class 526/90)
  • Patent number: 10183866
    Abstract: The present invention relates to a composition for forming a conductive pattern and a resin structure having a conductive pattern, wherein the composition makes it possible to form a fine conductive pattern on various polymer resin products or resin layers through a simple process, and can more effectively meet needs of the art, such as displaying various colors. The composition for forming a conductive pattern, comprises: a polymer resin; and a non-conductive metal compound having a predetermined chemical structure, and may be a composition for forming a conductive pattern through electromagnetic irradiation, by which a metal nucleus is formed from the non-conductive metal compound.
    Type: Grant
    Filed: September 17, 2015
    Date of Patent: January 22, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Han Nah Jeong, Chee-Sung Park, Ha Na Lee, Cheol-Hee Park, Jae Hyun Kim, Shin Hee Jun, Eun Kyu Seong, Su Jeong Lee
  • Patent number: 10167352
    Abstract: A method for producing highly reactive olefin polymers wherein at least 50 mol. % of the polymer chains have terminal double bonds, from an impurity-containing isobutylene or a mixed C4 hydrocarbyl feedstock containing isobutylene in which the water content of the feedstock is controlled to be at least equal to the content of polar impurities in the feedstock, and less than the concentration at which the water causes a decrease in vinylidene end-group selectivity.
    Type: Grant
    Filed: June 28, 2017
    Date of Patent: January 1, 2019
    Assignees: University of Massachusetts, Infineum International Limited
    Inventors: Philip Dimitrov, Richard J. Severt, Thomas Skourlis, Jeremy Weber, Jacob Emert, Rudolf Faust
  • Patent number: 10072042
    Abstract: Methods for conducting controlled grafting-from radical polymerizations from biomolecules under conditions that are biologically compatible are described. The methods provide biomolecule-polymer conjugates with highly controlled structures and narrow polydispersities under aqueous reaction conditions and biological temperatures. Biomolecules, such as proteins and nucleotides can be conjugated to polymers with high levels of control.
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: September 11, 2018
    Assignee: CARNEGIE MELLON UNIVERSITY
    Inventors: Krzysztof Matyjaszewski, Saadyah E. Averick, Antonina Simakova
  • Patent number: 10065860
    Abstract: The present invention relates to a composition for forming conductive patterns and a resin structure having a conductive pattern, capable of forming a conductive micropattern on various polymer resin products or resin layers using a simplified process and exhibiting excellent heat dissipation characteristics. The composition for forming conductive patterns comprises: a polymer resin; a non-conductive metal compound represented by a specific chemical formula; and a heat-dissipating material, wherein a metal nucleus is formed from the non-conductive metal compound by the irradiation of electromagnetic waves.
    Type: Grant
    Filed: September 17, 2015
    Date of Patent: September 4, 2018
    Assignee: LG Chem, Ltd.
    Inventors: Kwon Il Choi, Myong Jo Ham, Eon Seok Lee, Cheol-Hee Park, Han Nah Jeong, Jae Hyun Kim, Shin Hee Jun, Eun Kyu Seong
  • Patent number: 10047174
    Abstract: A method for producing highly reactive olefin polymers wherein at least 50 mol. % of the polymer chains have terminal double bonds, from an isobutylene or a mixed C4 hydrocarbyl feedstock containing isobutylene. To achieve a viable process, water is added to the catalyst stream or the feedstock in the overall range of 0.05 mM to less than 5 mM per liter of feedstock.
    Type: Grant
    Filed: June 28, 2017
    Date of Patent: August 14, 2018
    Assignee: INFINEUM INTERNATIONAL LIMITED
    Inventors: Philip Dimitrov, Richard J. Severt, Thomas Skourlis, Jeremy Weber, Jacob Emert
  • Patent number: 9982075
    Abstract: A polyisoolefin-based polymer composition having a multimodal molecular weight distribution and a level of unsaturation of greater than about 4 mol % is described, which can be prepared by co-polymerizing 70-96 vol % isoolefin monomer and 30-4 vol % ?-pinene or multi-olefin monomer, based on volume of isoolefin monomer and ?-pinene or multi-olefin monomer, in a solution comprising 0-30 vol % aliphatic hydrocarbon diluent, based on volume of the solution, and an alkylaluminum halide initiator system. The polyisoolefin-based polymer composition has a multimodal molecular weight distribution having a first molecular weight fraction having a peak molecular weight (Mp) of less than about 300 kg/mol, and a second molecular weight fraction having a peak molecular weight (Mp) of greater than about 1000 kg/mol or at least 3 times greater than the Mp of the first molecular weight fraction.
    Type: Grant
    Filed: April 28, 2015
    Date of Patent: May 29, 2018
    Assignee: ARLANXEO Singapore Pte. Ltd.
    Inventors: Lorenzo Ferrari, Sarah Chadder, Patrick Crewdson
  • Patent number: 9862789
    Abstract: A free radical or controlled radical polymerization process of atom or group transfer radical polymerization. The process comprises radically polymerizing one or more radically (co)polymerizable monomers in the presence of a polymerization system. The one or more radically (co)polymerizable monomers comprise at least one or more radically (co)polymerizable diene monomers. The polymerization system comprises: an initiator having one or more radically transferable atoms or groups; a transition metal-ligand complex catalyst, wherein the ligand comprises any C-, N-, O-, P- or S-containing ligand which coordinates with the transition metal; an optional reducing agent capable of regenerating the lower oxidation state of the transition metal catalyst; and an optional organic solvent or water capable of solubilizing the transition metal-ligand complex catalyst. (Co)polymers produced by the free radical or controlled radical polymerization process of atom or group transfer radical polymerization.
    Type: Grant
    Filed: July 3, 2014
    Date of Patent: January 9, 2018
    Assignee: UNIVERSITY OF CONNECTICUT
    Inventor: Alexandru D. Asandei
  • Patent number: 9782523
    Abstract: Side-chain crystallizable (SCC) polymers are useful in various medical applications. In certain applications, heavy atom containing side-chain crystallizable polymers (HACSCCP's) are particularly useful. An example of a HACSCCP is a polymer that comprises a main chain, a plurality of crystallizable side chains, and a plurality of heavy atoms attached to the polymer. In certain configurations, the heavy atoms are present in an amount that is effective to render the polymer radiopaque. A polymeric material that includes an HACSCCP may be fabricated into a medical device useful for at least partially occluding a body cavity. For example, such a medical device may be an embolotherapy product. A polymeric material that includes a SCC polymer may also be fabricated into other medical devices, such as stents.
    Type: Grant
    Filed: May 5, 2011
    Date of Patent: October 10, 2017
    Assignee: Reva Medical, Inc.
    Inventors: Donald K. Brandom, James E. McGrath, Joan Zeltinger, Eric V. Schmid, Robert K. Schultz
  • Patent number: 9777082
    Abstract: A method for the production of hyperbranched polyacrylates includes the step of reacting acrylic inimers through controlled living polymerization in aqueous conditions. The inimers may have the formula: Wherein X is a halogen, a thiocarbonylthio or nitroxide group, and R is hydrogen, methyl, dodecyl, and groups containing mesogenin substituents, fluorocarbon substituents, siloxane substituents and oxyethylene substituents. In particular, the aqueous condition is emulsion or miniemulsion. The polymerization may be reverse ATRP, SN&RI and AGET polymerization or RAFT polymerization (with thiocarbonylthio X groups) or nitroxide mediated polyeization (with nitroxide X groups).
    Type: Grant
    Filed: October 5, 2012
    Date of Patent: October 3, 2017
    Assignee: The University of Akron
    Inventors: Coleen Pugh, Guillermina Garcia
  • Patent number: 9708428
    Abstract: This invention relates to a polymerization process for forming polymer comprising: contacting (typically in a solution or slurry phase), a monomer and a catalyst system in a reaction zone comprising at least one spiral heat exchanger and recovering polymer, wherein the monomer, the catalyst system and the polymer flow through the at least one spiral heat exchanger in a cross-flow direction relative to spirals of the at least one spiral heat exchanger.
    Type: Grant
    Filed: August 19, 2016
    Date of Patent: July 18, 2017
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Jay L Reimers, Kevin W. Lawson, Peijun Jiang, Gabor Kiss
  • Patent number: 9580609
    Abstract: The present invention is directed to aqueous systems for polyamideimide, polyether imide, and/or polyamic acid binder solutions. The present invention provides stable aqueous binder solutions equivalent or superior to current aqueous binder solutions.
    Type: Grant
    Filed: January 9, 2013
    Date of Patent: February 28, 2017
    Assignee: THE CHEMOURS COMPANY FC, LLC
    Inventor: Richard Alan Reynolds
  • Patent number: 9556289
    Abstract: The present invention relates to a supported hybrid catalyst and a method for preparing an olefin based polymer using the same. The supported hybrid catalyst according to the present invention can be used in the preparation of an olefin-based polymer, and the olefin-based polymer prepared using the supported hybrid catalyst has excellent processability and mechanical properties and thus can be effectively used for the application of films or the like.
    Type: Grant
    Filed: September 7, 2015
    Date of Patent: January 31, 2017
    Assignee: LG Chem, Ltd.
    Inventors: Heon Yong Kwon, Eun Young Shin, Ki Soo Lee, Dae Sik Hong, Se Young Kim, Sung Min Lee, Hyun Jee Kwon, Yong Ho Lee, Yu Taek Sung, Dong Hoon Jeong
  • Patent number: 9543596
    Abstract: A sealing member to be used for sealing a constituent member of a fuel cell is provided, the sealing member including a cross-linked product of a rubber composition, in which the rubber composition contains the following components (A) and (B). With this, rubber elasticity is maintained without being lost even under extremely low temperature conditions, and in the case where the sealing member is used in a fuel cell sealed body, an excellent sealing property is exhibited. (A) a rubber component including at least one of an ethylene-propylene rubber or ethylene-propylene-diene rubber having a ratio of ethylene-ethylene diad distribution of at most 29 mol %. (B) a cross-linking agent including an organic peroxide.
    Type: Grant
    Filed: June 10, 2015
    Date of Patent: January 10, 2017
    Assignee: SUMITOMO RIKO COMPANY LIMITED
    Inventors: Kenji Yamamoto, Hirokazu Hayashi, Kaoru Yasui, Shinji Kita
  • Patent number: 9522099
    Abstract: A self-cure, dual-cure or tri-cure polymerizable dental composition is provided with at least one functional chemical. The dental composition is divided into a three-part composition to avoid stability issues caused by degradation and/or loss of function of one component in the extended presence of another component, and the three parts are packaged in a tri-barrel syringe or cartridge delivery system to avoid premature chemical interaction between the functional chemical, redox initiator and/or acid/base.
    Type: Grant
    Filed: November 3, 2011
    Date of Patent: December 20, 2016
    Assignee: Kerr Corporation
    Inventors: Xuejun Qian, David Tobia
  • Patent number: 9518189
    Abstract: The present invention is directed to alternate solvent systems for polyethersulfone, polyamideimide, polyether imide, polyimide, and/or polyamic acid binder solutions. The present invention provides stable binder solutions equivalent or superior to current binder solvent solutions.
    Type: Grant
    Filed: January 9, 2013
    Date of Patent: December 13, 2016
    Assignee: THE CHEMOURS COMPANY FC, LLC
    Inventor: Richard Alan Reynolds
  • Patent number: 9399004
    Abstract: A self-cure or dual-cure polymerizable dental composition is provided with a redox indicator. The composition exhibits an initial first color upon mixing of the two parts and then changes to a second color that is noticeably different from the first color during the curing or polymerization of the composition initiated through the redox initiator system. Advantageously, the first color may be distinctively different from tooth structure and can be easily noticed. The second color may be essentially colorless, a neutral color, or a non-visually observable color in reference to the tooth structure.
    Type: Grant
    Filed: November 3, 2011
    Date of Patent: July 26, 2016
    Assignee: Kerr Corporation
    Inventors: Xuejun Qian, David Tobia
  • Patent number: 9034998
    Abstract: A method for producing highly reactive olefin polymers wherein at least 50 mol. % of the polymer chains have terminal double bonds, and a novel polymerization initiating system for accomplishing same.
    Type: Grant
    Filed: December 16, 2011
    Date of Patent: May 19, 2015
    Assignees: University of Massachusetts, Infineum Internatonal Limited
    Inventors: Rudolf Faust, Philip Dimitrov, Rajeev Kumar, Jacob Emert, Jun Hua
  • Patent number: 9034999
    Abstract: In a process for producing polyethylene having a molecular weight of at least 3×105 g/mol as determined by ASTM 4020, ethylene is contacted under polymerization conditions with a slurry of a catalyst composition in at least one hydrocarbon. The catalyst composition comprises a Group 4 metal complex of a phenolate ether ligand and the slurry includes from about 5 to less than 40 ppm per liter of a compound effective to increase the conductivity of said at least one hydrocarbon.
    Type: Grant
    Filed: July 1, 2011
    Date of Patent: May 19, 2015
    Assignee: TICONA GMBH
    Inventors: Dominique Robert, Julia Hufen, Kerstin Lüdtke, Jens Ehlers
  • Patent number: 9023967
    Abstract: A polymer having a long chain branching content peaking at greater than about 20 long chain branches per million carbon atoms, and a polydispersity index of greater than about 10 wherein the long chain branching decreases to approximately zero at the higher molecular weight portion of the molecular weight distribution. A polymer having a long chain branching content peaking at greater than about 8 long chain branches per million carbon atoms, a polydispersity index of greater than about 20 wherein the long chain branching decreases to approximately zero at the higher molecular weight portion of the molecular weight distribution. A polymer having a long chain branching content peaking at greater than about 1 long chain branches per chain, and a polydispersity index of greater than about 10 wherein the long chain branching decreases to approximately zero at the higher molecular weight portion of the molecular weight distribution.
    Type: Grant
    Filed: November 30, 2011
    Date of Patent: May 5, 2015
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Youlu Yu, Eric D. Schwerdtfeger, Max P. McDaniel, Alan L. Solenberger, Kathy S. Collins
  • Patent number: 9012528
    Abstract: A procedure for improved temperature control in controlled radical polymerization processes is disclosed. The procedure is directed at controlling the concentration of the persistent radical in ATRP and NMP polymerizations procedures and the concentration of radicals in a RAFT polymerization process by feeding a reducing agent or radical precursor continuously or intermittently to the reaction medium through one of more ports.
    Type: Grant
    Filed: February 7, 2014
    Date of Patent: April 21, 2015
    Assignee: ATRP Solutions, Inc.
    Inventors: Wojciech Jakubowski, James Spanswick
  • Patent number: 8993693
    Abstract: A Ziegler-Natta catalyzed ethylene copolymer having a novel composition distribution in which comonomers are incorporated into the high molecular weight polymer molecules and distributed evenly among the entire polyethylene chains, and a method for making the same are provided. The resins having a novel composition distribution have controlled molecular weight distribution which is narrower than conventional ZN-ethylene copolymers but broader than single-site catalyzed ethylene copolymers. The resins having a novel composition distribution exhibit a superior tear strength and impact strength.
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: March 31, 2015
    Assignee: Formosa Plastics Corporation
    Inventors: Honglan Lu, Guangxue Xu
  • Patent number: 8969484
    Abstract: Provided herein are methods for the preparation of mono- and multi-functional telechelic polyolefins via polymerization reaction with a terpene-based initiator.
    Type: Grant
    Filed: July 8, 2011
    Date of Patent: March 3, 2015
    Assignee: Chevron Oronite Company LLC
    Inventors: Casey D. Stokes, Young A. Chang, Patrick J. McDougall
  • Publication number: 20150031842
    Abstract: A method is provided for polymerizing an olefin monomer in a reactor with a highly active polyolefin polymerization catalyst system. The method includes introducing a catalyst system comprising a catalyst and a catalyst activator into the reactor containing the olefin monomer with less than 10 seconds or no pre-contacting time of the catalyst and the catalyst activator prior to introducing the catalyst and the catalyst activator into the reactor. The catalyst system may have a standard adjusted catalyst activity of greater than 10 gPgcat?1hr?1.
    Type: Application
    Filed: June 5, 2014
    Publication date: January 29, 2015
    Inventors: Todd S. Edwards, Kevin W. Lawson
  • Patent number: 8940654
    Abstract: A catalyst component for the polymerization of olefins obtained by: (a) reacting in a inert hydrocarbon suspension medium a Mg(OR1)(OR2) compound, in which R1 and R2 are identical or different and are each an alkyl radical having 1 to 10 carbon atoms, with a tetravalent transition metal compound having at least a Metal-halogen bond, used in amounts such that the molar ratio metal/Mg is from 0.05 to 10, thereby obtaining a solid reaction product dispersed in a hydrocarbon slurry, (b) washing the solid reaction product dispersed in a hydrocarbon slurry with a liquid hydrocarbon, (c) contacting the washed solid reaction product obtained in (b) with a tetravalent titanium compound and (d) contacting the product obtained in (c) with an organometallic compound of a metal of group 1, 2 or 13 of the Periodic Table.
    Type: Grant
    Filed: June 6, 2011
    Date of Patent: January 27, 2015
    Assignee: Basell Polyolefine GmbH
    Inventors: Friedhelm Gundert, Martin Schneider
  • Patent number: 8933175
    Abstract: A composition comprising a polyethylene wherein the composition is enriched in polymer molecules having topological variations by an enrichment factor ? and wherein the composition displays a long chain branching frequency of greater than about 0.5 long chain branches per 1000 total carbon atoms. A composition comprising an isolated Ziegler-catalyzed polyethylene having a long chain branching frequency of greater than about 0.5 long chain branches per 1000 total carbon atoms at the high molecular weight end.
    Type: Grant
    Filed: August 30, 2012
    Date of Patent: January 13, 2015
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Youlu Yu, Chung C. Tso, David C. Rohlfing, Paul J. Deslauriers, Melvin Hildebrand, Max P. McDaniel, Qing Yang
  • Patent number: 8921478
    Abstract: A method of inhibiting hydrates in a fluid comprising water and gas comprising adding to the fluid an effective hydrate-inhibiting amount of a composition comprising one or more copolymers of N-alkyl(alkyl)acrylamide monomers and one or more cationic monomers selected from acid and alkyl chloride quaternary salts of N,N-dialkylaminoalkyl(meth)acrylates and N,N-dialkylaminoalkyl(meth)acrylamides.
    Type: Grant
    Filed: October 17, 2008
    Date of Patent: December 30, 2014
    Assignee: Nalco Company
    Inventors: Peter G. Conrad, Erick J. Acosta, Kevin P. McNamee, Brian M. Bennett, Olga E. S. Lindeman, Joseph R. Carlise
  • Patent number: 8916661
    Abstract: Processes for forming low molecular weight (C2-4) olefins from renewable resources, and polyolefins formed from the olefins, are disclosed. The C2-4 olefins are produced by first converting a renewable resource, capable of being converted to syngas, to syngas. The syngas is converted, using Fischer-Tropsch synthesis using a catalyst with low chain growth probabilities, to a composition comprising C2-4 olefins, which are then isolated to form a C2-4 olefin-rich stream. Propylene can be isolated from this stream, and the ethylene and butylene can be subjected to olefin metathesis to produce additional propylene. The propylene, or other olefins, can be subjected to a variety of polymerization conditions and used in a variety of products, to replace the propylene, and polypropylene, produced from crude oil. Thus, the olefins, and polymers, copolymer and terpolymers thereof, can help reduce U.S. dependence on foreign crude oil.
    Type: Grant
    Filed: November 23, 2009
    Date of Patent: December 23, 2014
    Inventor: David Bradin
  • Publication number: 20140350199
    Abstract: A polymerization process is disclosed, including: polymerizing an olefin to form an olefin-based polymer in a polymerization reactor; and introducing a hindered amine light stabilizer to the polymerization reactor. The process may further comprise monitoring static in the polymerization reactor; maintaining the static at a desired level by use of a hindered amine light stabilizer, the hindered amine light stabilizer present in the reactor in the range from about 0.1 to about 500 ppmw, based on the weight of polymer produced by the process.
    Type: Application
    Filed: December 18, 2012
    Publication date: November 27, 2014
    Applicant: Univation Technologies, LLC
    Inventors: Chi-I Kuo, Ghanshyam Ganu H. Patel, R. Eric Pequeno, Bruce J. Savatsky, F. David Hussein
  • Patent number: 8883941
    Abstract: This invention provides methods for controlled single electron transfer living radical polymerization (SET-LRP) of monomers with increased conversion, high molecular weights and low polydispersity by allowing the polymerization to proceed at low temperatures via a tubular reactor either made of copper or containing copper metal surface.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: November 11, 2014
    Assignee: Henkel Corporation
    Inventors: Anthony F. Jacobine, John G. Woods, Scott Senuta, David P. Dworak, Debora E. Duch, John Mazzullo
  • Patent number: 8877857
    Abstract: The present invention provides a polar group-containing copolymer which can provide a rubber composition and a winter tire achieving the abrasion resistance, performance on ice, and handling stability on dry roads in a balanced manner. The present invention relates to a polar group-containing copolymer obtainable by copolymerizing a conjugated diene compound and a polar group-containing vinyl compound, wherein the polar group-containing vinyl compound is a compound that has a polymerizable unsaturated bond and a polar group, wherein any one of carbon atoms forming the polymerizable unsaturated bond and a carbon atom linked to the polar group are connected to each other via at least one carbon atom, and wherein a cis content of the double bond portion of the conjugated diene compound in the polar group-containing copolymer is 80 mol % or more.
    Type: Grant
    Filed: April 6, 2010
    Date of Patent: November 4, 2014
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventors: Ryuichi Tokimune, Kazuo Hochi, Katsumi Terakawa
  • Patent number: 8841391
    Abstract: Process for introducing a polymerization catalyst in solid form into a gas-phase fluidized bed using an injection device having an inner tube of internal cross-sectional area of 10-100 mm2 and an outer tube forming an annulus around the inner tube with a cross-sectional area of 1-10 times the internal cross-sectional area of the inner tube. The polymerization catalyst and a carrier gas are passed through the inner tube into the gas-phase fluidized bed at a carrier gas linear velocity of 4-14 m/s and a carrier gas mass flow rate of 10-35 kg/h. A shielding gas is passed through the outer tube and into the gas-phase fluidized bed at a shielding gas linear velocity of 1-10 times the linear velocity of the carrier gas through the inner tube and at a shielding gas mass flow rate of 100-500 kg/h. No cooled recycle process gas is provided to the injection device.
    Type: Grant
    Filed: November 21, 2011
    Date of Patent: September 23, 2014
    Assignee: Ineos Sales (UK) Limited
    Inventors: Bruno Bordais, Christopher James Kemp, Jose Andre Laille, Willy Lemesle, Wilhelm Kalz, Loic Perio
  • Patent number: 8828529
    Abstract: A unimodal polymeric resin having a density of from about 0.946 g/ml to about 0.97 g/ml and a zero shear viscosity of from about 8×102 Pa-s to about 6×104 Pa-s. A method comprising (a) providing a catalyst system comprising a half-sandwich transition metal complex; (b) contacting the catalyst system with an olefin under conditions suitable to form a polyolefin, wherein the polyolefin is unimodal; and (c) recovering the polyolefin, wherein the polyolefin has a density of from about 0.946 g/ml to about 0.97 g/ml and a zero shear viscosity of from about 8×102 Pa-s to about 6×104 Pa-s. A unimodal polymeric resin having a density of from about 0.946 g/ml to about 0.97 g/ml and a CY-a parameter of from about 0.5 to about 0.6.
    Type: Grant
    Filed: September 24, 2010
    Date of Patent: September 9, 2014
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Guylaine St. Jean, Errun Ding, Chung Tso, Qing Yang, Albert P. Masino, Joel L. Martin
  • Patent number: 8829125
    Abstract: Methods of controlling polymerization reactions using a synergistic amount of hydrogen and an organozinc compound are disclosed. The resulting polymers have lower molecular weights and higher melt flow indices.
    Type: Grant
    Filed: June 26, 2013
    Date of Patent: September 9, 2014
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Errun Ding, Qing Yang, Albert P. Masino, Youlu Yu, Lloyd W. Guatney, Jim B. Askew
  • Patent number: 8829124
    Abstract: The invention relates to a process for preparing polyolefin in a loop reactor. The polymer is prepared by polymerizing olefin monomers in the presence of a catalyst to produce a polyolefin slurry while pumping said slurry through said loop reactor by means of a pump. The present process is characterized in that the catalyst is fed in the loop reactor at a distance to the pump. The invention allows production of the polymer with advantageous properties while leading to fewer blockages of the reactor.
    Type: Grant
    Filed: December 2, 2013
    Date of Patent: September 9, 2014
    Assignee: Total Research & Technology Feluy
    Inventors: Eric Damme, Louis Fouarge, Jerome Bette, Alvaro Fernandez, Aurelien Vantomme, Renaud Oreins, Daniel Siraux
  • Patent number: 8822610
    Abstract: A procedure for improved temperature control in controlled radical polymerization processes is disclosed. The procedure is directed at controlling the concentration of the persistent radical in ATRP and NMP polymerizations procedures and the concentration of radicals in a RAFT polymerization process by feeding a reducing agent or radical precursor continuously or intermittently to the reaction medium through one of more ports.
    Type: Grant
    Filed: December 8, 2010
    Date of Patent: September 2, 2014
    Assignee: ATRP Solutions, Inc.
    Inventors: Wojciech Jakubowski, James Spanswick
  • Patent number: 8815971
    Abstract: A procedure for improved temperature control in controlled radical polymerization processes is disclosed. The procedure is directed at controlling the concentration of the persistent radical in ATRP and NMP polymerizations procedures and the concentration of radicals in a RAFT polymerization process by feeding a reducing agent or radical precursor continuously or intermittently to the reaction medium through one of more ports.
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: August 26, 2014
    Assignee: ATRP Solutions, Inc.
    Inventors: Wojciech Jakubowski, James Spanswick
  • Publication number: 20140235803
    Abstract: Nanoparticles zwitterionic polymers grafted thereto or grafted therefrom, and methods for making and using the nanoparticles. Zwitterionic nanogels, and methods for making and using the nanogels.
    Type: Application
    Filed: February 19, 2014
    Publication date: August 21, 2014
    Applicant: University of Washington
    Inventors: Shaoyi Jiang, Shengfu Chen, Yung Chang, Zheng Zhang
  • Patent number: 8796402
    Abstract: Process for polymerization and, in particular, to a process for start-up of a gas phase fluidized bed polymerization reaction involving one or more monomers using a catalyst in a reactor. The process includes providing a start-up bed of particles in the reactor in the presence of the one or more monomers but in the absence of the catalyst, introducing at T0 catalyst to the reactor to initiate reaction and start-up polymer production at a time Ti, Ti being between 1 and 6 hours after T0. The value of Xi is less than a threshold value, wherein: Xi=Cumulative production in the time period T0 to Ti/(Cumulative catalyst injection the time period T0 to Ti*PiC2=), where PiC2= is the ethylene partial pressure in the reactor at the time Ti, subsequently stopping the injection of catalyst, and taking a corrective action to address the low value of Xi.
    Type: Grant
    Filed: February 8, 2013
    Date of Patent: August 5, 2014
    Assignee: Ineos Commercial Services UK Limited
    Inventors: Andreas Harald Gondorf, Jose Andre Laille, Claudine Viviane Lalanne-Magne
  • 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
  • Publication number: 20140187716
    Abstract: Processes for the continuous production of conjugated polymers are disclosed. The processes provide excellent control over reaction parameters and are highly reproducible. The conjugated polymers find use in heterojunction devices.
    Type: Application
    Filed: July 13, 2012
    Publication date: July 3, 2014
    Applicant: The University of Melbourne
    Inventors: David John Jones, Wing Ho Wallace Wong, Andrew Bruce Holmes, Helga Seyler
  • Patent number: 8759459
    Abstract: Systems and methods for the maintenance of active chromium-based catalysts and their use in polymerization processes are described. In one embodiment, a system for the introduction of multiple polymerization components to activate a chromium based catalyst within a mix tank is described. Other described features may include materials and methods to purify the liquid medium of a catalyst slurry so that the catalyst slurry maintains a high level of activity. The active chromium-based catalyst may provide polyolefins with a number of desirable properties in a reliable, consistent, and predictable manner.
    Type: Grant
    Filed: March 1, 2013
    Date of Patent: June 24, 2014
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Elizabeth A. Benham, Max P. McDaniel, Kathy S. Collins
  • Patent number: 8748531
    Abstract: A method for preparing a functionalized polymer, the method comprising the steps of polymerizing monomer to form a reactive polymer; and reacting the reactive polymer with a protected oxime compound containing an acyl group.
    Type: Grant
    Filed: December 10, 2010
    Date of Patent: June 10, 2014
    Assignee: Bridgestone Corporation
    Inventor: Steven Luo
  • Publication number: 20140155512
    Abstract: A procedure for improved temperature control in controlled radical polymerization processes is disclosed. The procedure is directed at controlling the concentration of the persistent radical in ATRP and NMP polymerizations procedures and the concentration of radicals in a RAFT polymerization process by feeding a reducing agent or radical precursor continuously or intermittently to the reaction medium through one of more ports.
    Type: Application
    Filed: February 7, 2014
    Publication date: June 5, 2014
    Applicant: ATRP Solutions, Inc.
    Inventors: Wojciech Jakubowski, James Spanswick
  • Patent number: 8742036
    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: July 29, 2011
    Date of Patent: June 3, 2014
    Assignee: Total Research & Technology Feluy
    Inventors: Daan Dewachter, Daniel Bekaert
  • Patent number: 8722567
    Abstract: The invention relates to a process for the preparation of a particulate polyethylene product in a loop reactor, wherein the polymerization catalyst applied in the polymerization process comprises a particulate metallocene-alumoxane catalyst immobilized on a porous silica support; and whereby said metallocene-alumoxane catalyst is heterogeneously distributed on said porous silica support.
    Type: Grant
    Filed: August 13, 2013
    Date of Patent: May 13, 2014
    Assignee: Total Research & Technology Feluy
    Inventor: Martine Slawinski
  • Publication number: 20140128558
    Abstract: The present disclosure relates to the field of solar cells. An amine-containing difluoro benzotriazolyl polymer, preparation method, and use thereof are provided; the polymer has a structure as represented by formula (I), both R1 and R2 are alkyls from C1 to C20, n is an integer from 10 to 50. In the polymer of the present disclosure, because the 1, 2, 3-benzotriazole solar cell material contains two fluorine atoms, the HOMO energy level is reduced by 0.11 eV, the fluorine-substituted 1, 2, 3-benzotriazole has two imido groups with strong electron-withdrawing property; the 1, 2, 3-benzotriazole is a heterocyclic compound with strong electron-withdrawing property, and an alkyl chain can be easily introduced to the N-position of the N—H bond of the benzotriazole; the functional group of the alkyl chain can improve solar energy conversion efficiency, thus solving the low efficiency problem of the solar cell made from the solar cell material.
    Type: Application
    Filed: September 23, 2011
    Publication date: May 8, 2014
    Applicant: Ocean's King Lighting Science & Technology Co., Ltd
    Inventors: Mingjie Zhou, Ping Wang, Zhenhua Zhang, Hui Huang
  • Patent number: 8703887
    Abstract: The invention is directed to a process for the production of high density polyethylene by polymerization of ethylene in the presence of a supported chromium oxide based catalyst and an activator characterized in that the activator comprises the reaction mixture of a boron compound and/or an alkyl aluminum compound and a nitrogen containing compound wherein the boron compound is a (C1-C10) alkyl boron compound or a (C5-C20) aromatic boron compound, wherein the alkyl aluminum compound is an organo aluminum compound having the formula AIR3 in which R is a hydrocarbon radical containing 1-10 carbon atom and wherein the nitrogen containing compound comprises —NH2, —NHR, —NR2, wherein R may be an alkyl or a substituted alkyl having from 1 to 40 carbon atoms.
    Type: Grant
    Filed: April 6, 2010
    Date of Patent: April 22, 2014
    Assignee: Saudi Basic Industries Corporation
    Inventors: Wei Xu, Ali Saad Headan, Sirajudeen Mohamed, Atieh Aburaqabah
  • Publication number: 20140100343
    Abstract: Ethylene copolymers having a relatively high melt flow ratio and a multimodal profile in a temperature rising elution fractionation (TREF) plot are disclosed. The copolymers can be made into film having good dart impact values and good stiffness properties under decreased extruder pressures.
    Type: Application
    Filed: December 12, 2013
    Publication date: April 10, 2014
    Applicant: NOVA Chemicals (International) S.A.
    Inventors: Victoria Ker, Patrick Lam, Yan Jiang, Peter Phung Minh Hoang, Charles Ashton Garret Carter, Darryl J. Morrison
  • Publication number: 20140073753
    Abstract: The present disclosure relates to a process for the synthesis of a conducting polymer comprising a benzothiadiazole acceptor and indeno-fluorene donor of formula [IV].
    Type: Application
    Filed: September 10, 2013
    Publication date: March 13, 2014
    Applicant: SAUDI BASIC INDUSTRIES CORPORATION
    Inventors: Dwight SEFEROS, Brandon DJUKIC
  • Patent number: 8664343
    Abstract: A polymerization catalyst composition for preparing cis 1,4-polydienes is provided. The catalyst composition comprises (a) a metal-containing compound, said metal being a transition metal or a lanthanide metal; (b) a carbene, (c) an alkylating agent, and optionally (d) a halogen-containing compound with the proviso that the halogen-containing compound must be present when none of the metal-containing compound and the alkylating agent contain a labile halogen atom. Also provided is a process for producing a polydiene comprising reacting a conjugated diene in the presence of the polymerization catalyst composition.
    Type: Grant
    Filed: June 9, 2009
    Date of Patent: March 4, 2014
    Assignee: Bridgestone Corporation
    Inventors: Zengquan Qin, Jason T. Poulton