Patents Examined by Roberto Rabago
  • Patent number: 10017617
    Abstract: Disclosed herein are ethylene-based polymers having low densities and narrow molecular weight distributions, but high melt strengths for blown film processing. Such polymers can be produced by peroxide-treating a metallocene-catalyzed resin.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: July 10, 2018
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Lili Cui, Ashish M. Sukhadia, Vivek Rohatgi
  • Patent number: 10017616
    Abstract: There is provided a polyolefin-based resin wrap film which contains a polyolefin-based resin, wherein the wrap film is torn in the machine direction when being torn in the machine direction; the wrap film is torn in the transverse direction when being torn in the transverse direction; the wrap film is torn either in the machine direction or in the transverse direction when being torn in a direction at 45° to the machine direction; an acute angle formed by a tearing direction and a cut line when the wrap film is torn in a direction at 45° to the machine direction is 30 to 60°; and a tear strength when the wrap film is torn in a direction at 45° to the machine direction is 10 g or lower.
    Type: Grant
    Filed: December 15, 2014
    Date of Patent: July 10, 2018
    Assignee: ASAHI KASEI KABUSHIKI KAISHA
    Inventors: Aritaka Ueda, Yoshihiro Asada
  • Patent number: 10011663
    Abstract: A vulcanizing composition useful for the vulcanization of vulcanizable formulations is disclosed. The vulcanizing composition includes a vulcanizing agent which in turn includes a cyclododecasulfur compound. A cyclododecasulfur compound characterized by a DSC melt point onset of between 155° C. and 167° C. when measured at a DSC heat rate of 20° C./minute is also disclosed.
    Type: Grant
    Filed: February 4, 2016
    Date of Patent: July 3, 2018
    Assignee: EASTMAN CHEMICAL COMPANY
    Inventors: Scott Donald Barnicki, Frederick Ignatz-Hoover, Robert Thomas Hembre, Andrew Neil Smith, Henk Kreulen
  • Patent number: 10008195
    Abstract: Sprayable low-viscosity compositions have improved acoustic damping properties through the addition to the composition of a sterically hindered phenol, present in an amount from 9% to 18% by weight of the composition. In other embodiments, the sterically hindered phenol will have a melting point within the range from 60° C. to 250° C. and a molecular weight of 300 g/mol or less (but not 0).
    Type: Grant
    Filed: February 7, 2014
    Date of Patent: June 26, 2018
    Assignee: Henkel AG & Co. KGaA
    Inventors: Jeng-Li Liang, Michael S. Puckett, Gregory A. Ferguson
  • Patent number: 10000584
    Abstract: This invention relates to a novel process for selectively hydrogenating nitrile rubbers in the presence of specific Ruthenium based complex catalysts without simultaneous molecular weight degradation by a metathetic reaction.
    Type: Grant
    Filed: April 26, 2013
    Date of Patent: June 19, 2018
    Assignee: ARLANXEO DEUTSCHLAND GMBH
    Inventors: Qingchun Liu, Zhenli Wei, Martin Hoch
  • Patent number: 10000630
    Abstract: This disclosure relates to a continuous solution polymerization process where ethylene interpolymer products having an improved color index; for example, products having higher whiteness (Whiteness Index (WI)) and lower yellowness (Yellowness Index (YI)). Product color was improved by adjusting selected solution polymerization reaction conditions. The disclosed ethylene interpolymer products have improved color relative to comparative polyethylene compositions.
    Type: Grant
    Filed: October 21, 2015
    Date of Patent: June 19, 2018
    Assignee: NOVA CHEMICALS (INTERNATIONAL) S.A.
    Inventors: Fazle Sibtain, Christopher John Brooke Dobbin, Kenneth Edward Taylor, Hamidreza Khakdaman, P Scott Chisholm
  • Patent number: 10000592
    Abstract: The present invention is a process for producing copolymers of ethylene and alpha-olefins having from 4 to 10 carbon atoms in three polymerization stages where a low molecular weight copolymer of ethylene is produced in two of the stages and a high molecular weight copolymer in one of the stages. The resulting copolymers have a low content of extractable material and can be extruded to films which can be used in food contact applications.
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: June 19, 2018
    Assignee: BOREALIS AG
    Inventors: Yi Liu, John Jamieson, Ravindra Tupe, Jarmo Kela
  • Patent number: 9988523
    Abstract: Polypropylene composition which combines low sealing initiation temperature (SIT) and high melting point (Tm), furthermore showing a broad sealing window, low hexane solubles and good optical properties, like low haze.
    Type: Grant
    Filed: February 29, 2016
    Date of Patent: June 5, 2018
    Assignee: BOREALIS AG
    Inventors: Cornelia Tranninger, Kauno Alastalo, Johanna Lilja, Kristin Reichelt, Petar Doshev
  • Patent number: 9988515
    Abstract: Disclosed are a method for preparing a conjugated diene polymer including synthesizing an initiator having an anionic end containing an amine and a cationic end containing an alkali metal, polymerizing a combination of an aromatic vinyl monomer using the initiator to synthesize a polymer having a modified end, coupling or reacting the polymer with a compound having at least one silyl group substituted by an alkoxy group and a nitrogen atom to prepare a modified conjugated diene polymer having one end containing amine and the other end containing silyl group substituted by one or more alkoxy group and a nitrogen atom, and a rubber composition comprising the conjugated diene polymer and silica as a reinforcing agent and thus exhibiting superior heat generation, tensile strength, abrasion resistance and wet skid resistance.
    Type: Grant
    Filed: March 27, 2014
    Date of Patent: June 5, 2018
    Assignee: LG CHEM, LTD.
    Inventors: Ro Mi Lee, Sang Mi Lee, Heung Yeal Choi, Yu Jin Kim, Moon Seok Chun
  • Patent number: 9988477
    Abstract: A (meth)acrylic block copolymer includes a methacrylic polymer block including at least one structural unit derived from a dimethacrylate according to formula (2): where R1 is a methyl group, R2 and R3 are each independently a hydrocarbon group having 1 to 6 carbon atoms, and n is an integer of 1 to 5, and a (meth)acrylic polymer block having no active energy ray curable groups. A method of preparing the (meth)acrylic block copolymer and an active energy ray curable composition are provided.
    Type: Grant
    Filed: March 5, 2014
    Date of Patent: June 5, 2018
    Assignee: KURARAY CO., LTD.
    Inventors: Seiya Shimizu, Hirotsugu Ida
  • Patent number: 9982107
    Abstract: This invention relates to a composition for devulcanization of sulfur-cured rubber and a method of devulcanization of sulfur-cured rubber, and can be used to recycle used rubber articles. The composition for devulcanization of sulfur-cured rubber, which contains a devulcanizing agent for the selective destruction of sulfide bonds according to this invention, has a mixture of triphenylphosphine and 1,8-diazabicyclo[5.4.0]undec-7-ene at a weight ratio from 5:1 to 1:5 as the devulcanizing agent. Further, it contains a compatibilizer compatible with both the devulcanizing agent and the sulfur-cured rubber, at a weight ratio of the devulcanizing agent to the compatibilizer from 1:15 to 1:70. The devulcanizing agent breaks sulfide bonds in sulfur-cured rubber very effectively and selectively, while the experimentally selected compatibilizer ensures an effective penetration of the devulcanizing agent into the rubber crumbs.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: May 29, 2018
    Assignee: Rubbintec, SIA
    Inventors: Leonid R. Vorobyev, Vladimir Borisovich Bosnik
  • Patent number: 9982110
    Abstract: The present invention aims to provide a water-absorbing resin crosslinking agent which is excellent in safety and which can effectively crosslink a water-absorbing resin at low temperatures to produce a water-absorbing agent having a high water absorption capacity. The present invention also aims to provide a water-absorbing agent produced by crosslinking a water-absorbing resin with the water-absorbing resin crosslinking agent, and a method for producing the water-absorbing agent. The present invention may include a water-absorbing resin crosslinking agent containing a halohydrin compound having one halohydrin group represented by the following formula (1) in its molecule: wherein A represents a single bond or an alkylene group; R1 represents a hydrogen atom or an alkyl group; and X represents a chlorine atom or a bromine atom.
    Type: Grant
    Filed: March 19, 2015
    Date of Patent: May 29, 2018
    Assignee: Nagase ChemteX Corporation
    Inventors: Tetsuya Hosomi, Masato Fushiki, Toyohiro Nagano
  • Patent number: 9975971
    Abstract: A PIB-based polymer network includes at least one sulfur containing segment and at least two PIB polymer segments. The at least two PIB polymer segments each include a core and at least two polyisobutylene polymer chains extending therefrom. The at least one sulfur containing segment includes at least one sulfur atom that is located between any two polyisobutylene polymer chains from two different PIB polymer segments, so that the sulfur containing segment connects those two different PIB polymer segments together. The PIB-based polymer network is produced by the thiol-ene reaction in the presence of light or heat. The reaction products include at least two polyisobutylene polymer precursor moieties, each polyisobutylene polymer precursor moiety having at least two end group selected from the end groups —CH2—CH(CH3)?CH2, —CH2?C(CH3)2, and —CH2—CH?CH2; and at least one multi-functional thiol.
    Type: Grant
    Filed: March 4, 2014
    Date of Patent: May 22, 2018
    Assignee: The University of Akron
    Inventors: Joseph Kennedy, Turgut Nugay, Nihan Nugay
  • Patent number: 9975818
    Abstract: Processes are described for making biobased isoprene, wherein a biobased isobutene prepared from acetic acid in the presence of a catalyst is combined with a formaldehyde source to form a reaction mixture, and the reaction mixture is reacted to yield biobased isoprene. In certain embodiments, methyl-tert-butyl ether prepared by reacting the same biobased isobutene with methanol serves as a formaldehyde source, being oxidatively cracked to produce formaldehyde as well as isobutene for being converted to the biobased isoprene.
    Type: Grant
    Filed: April 10, 2015
    Date of Patent: May 22, 2018
    Assignees: Archer Daniels Midland Company, Washington State University
    Inventors: Junming Sun, Changjun Liu, Yong Wang, Kevin Martin, Padmesh Venkitasubramanian
  • Patent number: 9975984
    Abstract: The present invention provides a method for producing a block copolymer, which includes subjecting styrene or a derivative thereof (excluding ?-methylstyrene) to living anionic polymerization in the presence of a polymerization initiator by means of a microreactor having a channel being capable of mixing a plurality of liquids with each other, reacting a propagation end of the resultant polymer block (A) derived from styrene or a derivative thereof with ?-methylstyrene to obtain an intermediate polymer having a polymer unit (B) derived from ?-methylstyrene bonded to one end of the polymer block (A), and then subjecting a (meth)acrylate compound (c) to living anionic polymerization in the presence of a polymerization initiator so that the polymer unit (B) derived from ?-methyl styrene in the intermediate polymer serves as a propagation end to form a polymer block (C) derived from the (meth)acrylate compound (c).
    Type: Grant
    Filed: September 11, 2014
    Date of Patent: May 22, 2018
    Assignee: DIC CORPORATION
    Inventors: Yukie Uemura, Hisakazu Tanaka, Nobuhiro Oe
  • Patent number: 9963521
    Abstract: Preparation of isobutene homopolymers having a weight-average molecular weight of 75 000 to 10 000 000 by polymerization of isobutene, by (a) performing the polymerization at ?80° C. to ?190° C., (b) using, as an inert solvent, optionally halogenated C1 to C5 hydrocarbons, (c) using, as a polymerization catalyst, a Lewis acid complex, (d) performing the polymerization in the presence of at least one reaction accelerator in the form of an ethylenically saturated hydrocarbon compound comprising one oxygen atom and no abstractable proton, and (e) performing the polymerization in the presence of at least one chain length regulator comprising one tertiary olefinic carbon atom.
    Type: Grant
    Filed: February 12, 2013
    Date of Patent: May 8, 2018
    Assignee: BASF SE
    Inventors: Thomas Wettling, Stefan Hirsch, Markus Brym, Markus Weis, Rosa Corberan Roc, Klaus Muehlbach, Robert Haschick, Andreas Daiss, Marco-Christian Volland
  • Patent number: 9963535
    Abstract: A process for producing a high impact polystyrene having a high swell index may include feeding at least one vinyl aromatic monomer and at least one elastomer to at least one polymerization reactor to form a reaction mixture. The process may include polymerizing the reaction mixture, combining a chain transfer agent to the reaction mixture leaving the at least one polymerization reactor to form a combined mixture, and sending the combined mixture to a devolatilization zone. The process may include obtaining a HIPS product having a high swell index.
    Type: Grant
    Filed: March 20, 2015
    Date of Patent: May 8, 2018
    Assignee: FINA TECHNOLOGY, INC.
    Inventors: John Tomlinson, Jose Sosa
  • Patent number: 9963815
    Abstract: An anti-vibration rubber of the present invention is an anti-vibration rubber for washing machines. In temperature variance measurement of dynamic viscoelasticity at a frequency of 10 Hz, the anti-vibration rubber has a maximum loss factor at a temperature of 0° C. to 40° C., both inclusive, and has a loss factor of 0.5 or more in the entire temperature range of 0° C. to 40° C., both inclusive, at the frequency of 10 Hz.
    Type: Grant
    Filed: April 28, 2016
    Date of Patent: May 8, 2018
    Assignee: YAMAUCHI CORP.
    Inventors: Toshio Saito, Hiroyuki Maruko
  • Patent number: 9957373
    Abstract: A method for crosslinking a copolymer of ethylene and at least one other monomer using an organic peroxide represented by Formula (1): wherein R1 is either a methyl or an ethyl group and wherein (i) R1 is a methyl group, R2 is an alkyl group having 1 to 8 carbon atoms optionally substituted with groups containing O, Si, P, S, SO— or SO2 functionalities; (ii) if R1 is an ethyl group, R2 is an alkyl group having 2 to 8 carbon atoms optionally substituted with groups containing O, Si, P, S, SO— or SO2 functionalities.
    Type: Grant
    Filed: September 8, 2014
    Date of Patent: May 1, 2018
    Assignee: AKZO NOBEL CHEMICALS INTERNATIONAL B.V.
    Inventors: Tadanaga Itou, Koichi Tateishi
  • Patent number: 9951213
    Abstract: The present invention is a process for producing low density copolymers of ethylene and alpha-olefins having from 4 to 10 carbon atoms in three polymerization stages in the presence of an olefin polymerization catalyst where a low molecular weight copolymer of ethylene is produced in two of the stages and a high molecular weight copolymer in one of the stages. The resulting copolymers have a low density of not more than 920 kg/m3.
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: April 24, 2018
    Assignee: BOREALIS AG
    Inventors: Ravindra Tupe, Jani Aho, Markku Vahteri, Tuomas Noopila, Jarmo Kela