Patents Examined by William K. Cheung
  • Patent number: 11279775
    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: March 22, 2022
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Jay L. Reimers, Kevin W. Lawson, Peijun Jiang, Gabor Kiss
  • Patent number: 11267916
    Abstract: Amorphous propylene-ethylene copolymers are described herein that can include high amounts of ethylene and exhibit desirable softening points and needle penetrations. The desirable combinations of softening points and needle penetrations in these propylene-ethylene copolymers allow them to have a broad operating window. Due their broad operating window, the propylene-ethylene copolymers can be utilized in a wide array of applications and products, including hot melt adhesives.
    Type: Grant
    Filed: May 11, 2020
    Date of Patent: March 8, 2022
    Assignee: Eastman Chemical Company
    Inventors: Terri Roxanne Carvagno, Susana Marques, Ming Allison Yuan, Da Yu Vincent Zhang, Boon Hui Janice Ang, Marc Stacey Somers, Raymond Prescott Cottle, Bennett H. Novak, Puthenkovilakom Rajesh Raja
  • Patent number: 11262338
    Abstract: Modified thermoplastic hydrocarbon thermoplastic resins are provided, as well as methods of their manufacture and uses thereof in rubber compositions. The modified thermoplastic resins are modified by decreasing the relative quantity of the dimer, trimer, tetramer, and pentamer oligomers as compared to the corresponding unmodified thermoplastic resin polymers, resulting in a product that exhibits a greater shift in the glass transition temperature of the elastomer(s) used in tire formulations. This translates to better viscoelastic predictors of tire tread performance, such as wet grip and rolling resistance. The modified thermoplastic resins impart remarkable properties on various rubber compositions, such as tires, belts, hoses, brakes, and the like. Automobile tires incorporating the modified thermoplastic resins are shown to possess excellent results in balancing the properties of rolling resistance, tire wear, snow performance, and wet braking performance.
    Type: Grant
    Filed: August 10, 2020
    Date of Patent: March 1, 2022
    Assignee: Eastman Chemical Company
    Inventors: Mark Arigo, Terri Roxanne Carvagno, Jacobus Gillis De Hullu, Sebastian Finger, Hubert Hirschlag, Janine Klomp, Mutombo Joseph Muvundamina, Fabian Peters, Carla Recker, Christopher George Robertson, Peter Versluijs
  • Patent number: 11261281
    Abstract: A block polymer comprising a first block and a second block is provided. The first block contains aromatic ?-mono-olefin units, and the second block contains both 1,3-diene units and mono-olefin units.
    Type: Grant
    Filed: October 11, 2018
    Date of Patent: March 1, 2022
    Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: François Jean-Baptiste-Dit-Dominique, Vincent Lafaquiere
  • Patent number: 11254761
    Abstract: A process and system for pre-polymerizing propylene are disclosed. A first catalyst suspension is formed by mixing catalyst particles with a hydrocarbon that is a saturated hydrocarbon or propylene. Various other catalyst components are added to the first catalyst suspension, and the first catalyst suspension is then pre-polymerized under pre-polymerization conditions to form a pre-polymerized catalyst suspension that is introduced to a polymerization reactor or a storage tank. The saturated hydrocarbon can be propane, mixed butanes, or mixture thereof.
    Type: Grant
    Filed: October 15, 2020
    Date of Patent: February 22, 2022
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Reza Khankal, Joel A. Mutchler, Bryan M. Garner, James E. Hein
  • Patent number: 11254806
    Abstract: A rubber composition for vibrationproof rubber is disclosed in which when a total amount of one or more rubber components is regarded as 100 parts by mass, a solution-polymerized styrene butadiene rubber is included in an amount of 85 to 100 parts by mass. This solution-polymerized styrene butadiene rubber is a rubber in which an amount-proportion of styrene is from 10 to 45% by mass, and an amount-proportion of vinyl is from 30 to 65% by mass. The solution-polymerized styrene butadiene rubber is preferably a modified solution-polymerized styrene butadiene rubber. When the total amount of rubber components is regarded as 100 parts by mass, the solution-polymerized styrene butadiene rubber is preferably included therein in an amount of 90 to 100 parts by mass. A carbon black is preferably included therein in an amount of 30 to 100 parts by mass for the same 100 parts by mass.
    Type: Grant
    Filed: November 26, 2019
    Date of Patent: February 22, 2022
    Assignee: TOYO TIRE CORPORATION
    Inventors: Hama Nagai, Hiroyasu Funahashi
  • Patent number: 11247191
    Abstract: A method of producing a functionalized material that extracts metal ions from solution, the method comprising: (i) providing a precursor material having nitrile groups appended to its surface; and (ii) reacting said nitrile groups with hydroxylamine or a derivative thereof in the presence of a polar aprotic solvent at a temperature of 60-80° C. for at least 1 hour, to convert at least a portion of said nitrile groups to amidoxime and imide dioxime groups, followed by reaction with a base capable of hydrolyzing any remaining nitrile groups to carboxylic acid groups; wherein said functionalized material has a higher uranium absorption capacity than a functionalized material produced under same conditions except that the nitrile groups are reacted with hydroxylamine in only a protic solvent. The invention is also directed to functionalized materials produced by the above-described method, and methods for using the functionalized material for extracting metal ions from metal-containing solutions.
    Type: Grant
    Filed: June 8, 2020
    Date of Patent: February 15, 2022
    Assignee: UT-Battelle, LLC
    Inventors: Christopher J. Janke, Richard T. Mayes, Sadananda Das, Sheng Dai
  • Patent number: 11242414
    Abstract: The present invention provides a method for manufacturing a polymer by a flow-type reaction. The method includes introducing a liquid A of an anionic polymerizable monomer, a liquid B of an anionic polymerization initiator, and a polymerization terminator into different flow paths, allowing the liquids to flow in the flow paths, allowing the liquid A and the liquid B to join together, subjecting the monomer to anionic polymerization while the liquids having joined together are flowing to downstream in a reaction flow path, and allowing a solution, which is obtained by the polymerization reaction and flows in the reaction flow path, and the polymerization terminator to join together so as to terminate the polymerization reaction and to obtain a polymer having a number-average molecular weight of 5,000 to 200,000. A static mixer is disposed in the reaction flow path, and a polymer having a number-average molecular weight equal to or greater than 2,000 is introduced into an inlet port of the mixer.
    Type: Grant
    Filed: August 12, 2020
    Date of Patent: February 8, 2022
    Assignee: FUJIFILM Corporation
    Inventors: Kenji Wada, Kei Harada
  • Patent number: 11242363
    Abstract: Disclosed are to metallocyclopropene complexes, methods of making same, methods for ring expansion metathesis polymerization, and polymers prepared by the methods for ring expansion metathesis polymerization.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: February 8, 2022
    Assignee: University of Florida Research Foundation, Inc.
    Inventors: Adam S. Veige, Vineet K. Jakhar, Muhammad Tariq Jan
  • Patent number: 11236181
    Abstract: A process for preparing a solid pre-catalyst component for use in olefinic polymerization includes dissolving a magnesium chloride in an alcohol and optionally adding water to form a first solution having a water content of about 0.5 mmol water per mol MgCl2 to about 100 mmol water per mol MgCl2; contacting the first solution with a first titanium compound to form the solid pre-catalyst component; and treating the solid pre-catalyst component with a hydrocarbon or halogenated hydrocarbon solvent, optionally containing a second titanium compound.
    Type: Grant
    Filed: August 23, 2018
    Date of Patent: February 1, 2022
    Assignee: W.R. Grace & Co.-CONN.
    Inventors: Vladimir P. Marin, Ahmed Hintolay, Neil J. O'Reilly
  • Patent number: 11236180
    Abstract: A process for enhancing the melt strength of polypropylene by extruding said polypropylene in a twin-screw extruder, under inert atmosphere, at a temperature between about 150° C. and about 300° C., and in the presence of about 0.1 to about 3.0 wt %, based on the weight of the polypropylene, of a para-substituted dibenzoyl peroxide.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: February 1, 2022
    Assignee: NOURYON CHEMICALS INTERNATIONAL B.V.
    Inventors: Wilhelm Klaas Frijlink, Jan Martijn Van Der Schuur, Auke Gerardus Talma, Waldo Joseph Elisabeth Beek, Hendrikus Johannes Maria Kamp
  • Patent number: 11236182
    Abstract: A solution polymerization process for producing ethylene-based polymer includes introducing ethylene monomer, hydrocarbon solvent, and Ziegler-Natta catalyst into an entrance of a solution polymerization reactor. An ethylene-based polymer is produced by solution polymerizing the ethylene monomer in hydrocarbon solvent. Subsequently, a catalyst deactivator is introduced into x the exit of the solution polymerization reactor, thereby producing hydrochloric acid byproduct. The catalyst deactivator includes long chain carboxylate and at least one cation selected from Groups 1, 2, and 12 of the IUPAC periodic table, with the exception of calcium. The catalyst deactivator reduces the effectiveness of the Ziegler-Natta catalyst and neutralizes the hydrochloric acid by forming a chloride salt other than calcium chloride.
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: February 1, 2022
    Assignee: Dow Global Technologies LLC
    Inventors: Evelyn Auyeung, Sean W. Ewart, Daniela Ferrari, Thomas Davidian, Rony Vanspeybroeck
  • Patent number: 11225575
    Abstract: A rubber composition for an inner liner that has a carbon black and a modified silicone oil having a silanol group at a molecular terminal thereof can give a vulcanized rubber excellent in air permeability resistance and resistance to fatigue from flexing. This rubber composition can give a vulcanized rubber which can be restrained from being lowered in air permeability resistance and which is excellent in resistance to fatigue from flexing even when the rubber composition contains a process oil.
    Type: Grant
    Filed: November 4, 2019
    Date of Patent: January 18, 2022
    Assignee: TOYO TIRE CORPORATION
    Inventor: Ryo Kumamoto
  • Patent number: 11225536
    Abstract: A solid catalyst component for polymerization of an olefin having a polymerization activity equivalent to or higher than a solid catalyst component having a phthalic acid ester compound or diether compound as an internal electron-donating compound, and can produce an olefin polymer having excellent bulk density and low content of olefin oligomers.
    Type: Grant
    Filed: July 17, 2020
    Date of Patent: January 18, 2022
    Assignee: TOHO TITANIUM CO., LTD.
    Inventors: Toshiya Uozumi, Teppei Ishikawa
  • Patent number: 11220567
    Abstract: A hydrophobically modified rheology modifier comprising: (a) from 1 to 20 wt % polymerized units of H2C?C(R)C(O)O(CH2CH2O)n(CH(R?)CH2O)mR?; (b) from 35 to 75 wt % polymerized units of C1-C4 alkyl (meth)acrylates; and (c) from 20 to 60 wt % polymerized units of C3-C6 carboxylic acid monomers; wherein R is H or CH3, R? is methyl or ethyl; R? is C29-C60 alkyl; n is an average number from 20 to 100 and m is an average number from 0 to 50, provided that n?m.
    Type: Grant
    Filed: October 31, 2018
    Date of Patent: January 11, 2022
    Assignees: Rohm and Haas Company, Union Carbide Corporation
    Inventors: Fanwen Zeng, Ying O'Connor, Lyndsay M. Leal, Jennifer Koenig, Muhunthan Sathiosatham, James Pawlow, Inna Shulman, Sokhomari S. Suon
  • Patent number: 11219891
    Abstract: A method for manufacturing a solid catalyst component for polymerization of an olefin is disclosed, which includes bringing a magnesium compound and a specific styrene-based compound into contact with each other to obtain a preliminary contact product, and subsequently bringing the preliminary contact product, a titanium halide compound, and an internal electron donor compound into contact with each other to obtain a solid catalyst component for polymerization of an olefin; and a method for manufacturing a catalyst for polymerization of an olefin and a method for manufacturing a polymer of an olefin using the solid catalyst component for polymerization of an olefin obtained by the manufacturing method.
    Type: Grant
    Filed: October 30, 2020
    Date of Patent: January 11, 2022
    Assignee: TOHO TITANIUM CO., LTD.
    Inventors: Toshiya Uozumi, Teppei Ishikawa
  • Patent number: 11214638
    Abstract: A method for preparing polybutene by polymerization of a raw material of a carbon number 4 (C4) compounds having an isobutene amount of 50 to 75% by weight, is disclosed.
    Type: Grant
    Filed: April 23, 2020
    Date of Patent: January 4, 2022
    Assignee: DL CHEMICAL CO., LTD.
    Inventors: Myeong Seok Kim, Min Sup Park, Se Hyun Lee, Jin Wook Lee, Jae Hoon Lee
  • Patent number: 11214636
    Abstract: The present application provides a catalyst component for alkene polymerization. The catalyst component contains: (a) a group 4 transition metal or rare earth metal, (b) a rigid non-cyclopentadienyl ligand with a tricyclic backbone composed of three ortho-fused 6-membered rings in a linear arrangement (as is the case in xanthene), with or without additional fused rings; the tricyclic backbone contains at least one donor atom within the central ring (as is the case for xanthene, oxanthrene, or acridan); furthermore, donor atoms/groups or aryl rings are attached directly (i.e. via the donor atom in the case of donor groups) to both of the bondable carbon atoms adjacent to at least one of the donor atoms within the central ring (e.g.
    Type: Grant
    Filed: June 19, 2018
    Date of Patent: January 4, 2022
    Assignee: McMaster University
    Inventors: David Emslie, Kelly Williams, Arthithiyan Vasanthakumar
  • Patent number: 11192988
    Abstract: The present invention fills a long-felt need for an improved phenol-furan resin composition used as a chimney liner with reduced combustibility, and for the preparation of pre-impregnated fiber-reinforced composite material and its use. The invention shows a higher tolerance for certain conditions that are damaging to other resin compositions including higher heat tolerance and higher tolerance for flue gases and other compounds.
    Type: Grant
    Filed: August 22, 2019
    Date of Patent: December 7, 2021
    Inventors: István Kovácsay, Lídia Kecskeméthy, Norbert Piukovics
  • Patent number: 11186976
    Abstract: An absorbent article is disclosed having a topsheet, a backsheet joined with the topsheet, an absorbent core disposed between the topsheet and the backsheet, and a synthetic superabsorbent polymer derived from a first renewable resource via at least one intermediate compound, wherein said superabsorbent polymer exhibits a defined Saline Flow Conductivity value and Absorption Against Pressure value. Alternately, an absorbent article is disclosed having a synthetic polyolefin derived from a first renewable resource via at least one intermediate compound. The synthetic polyolefin exhibits defined performance characteristics making the polyolefin particularly useful in certain components of the absorbent article. Methods for making the aforementioned absorbent articles are also disclosed.
    Type: Grant
    Filed: January 8, 2021
    Date of Patent: November 30, 2021
    Assignee: The Procter & Gamble Company
    Inventor: Bryn Hird