Solid Polymer Derived From Reactant Containing At Least Two Ethylenic Groups And Is Devoid Of Aryl Ring Patents (Class 525/232)
  • Patent number: 11339279
    Abstract: Disclosed herein are ethylene-based polymers generally characterized by a melt index of less than 15 g/10 min, a density from 0.91 to 0.945 g/cm3, a CY-a parameter at 190° C. from 0.2 to 0.6, an average number of long chain branches per 1,000,000 total carbon atoms of the polymer in a molecular weight range of 500,000 to 2,000,000 g/mol of less than 5, and a maximum ratio of ?E/3? at an extensional rate of 0.03 sec?1 in a range from 3 to 15. The ethylene polymers have substantially no long chain branching in the high molecular weight fraction of the polymer, but instead have significant long chain branching in the lower molecular weight fraction, such that polymer melt strength and bubble stability are maintained for the fabrication of blown films and other articles of manufacture.
    Type: Grant
    Filed: April 1, 2020
    Date of Patent: May 24, 2022
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Errun Ding, Chung Ching Tso, Max P. McDaniel, Ashish M. Sukhadia, Youlu Yu, Randall S. Muninger, Aaron M. Osborn, Christopher E. Wittner
  • Patent number: 11235563
    Abstract: A resin composition is provided. The resin composition includes a styrene-acrylonitrile based copolymer of 75 parts by weight to 90 parts by weight and rubber particles of 10 parts by weight to 25 parts by weight. The resin composition includes an oligomer trimer. The oligomer trimer includes at least one monomer unit selected from the group consisting of a styrene based monomer unit and an acrylonitrile based monomer unit. Wherein, a residual acrylonitrile based monomer is less than 5 ppm of the total weight of the resin composition. The ratio of the peak area of acetophenone to the peak area of air for the resin composition as analyzed by a thermal desorption gas chromatography mass spectrometer (TD-GC-MS) is 100 to 300.
    Type: Grant
    Filed: December 28, 2018
    Date of Patent: February 1, 2022
    Assignee: CHIMEI CORPORATION
    Inventors: Chan-Li Hsueh, Shih-Wei Huang, Wen-Yi Su
  • Patent number: 11193009
    Abstract: Provided is a method for increasing the melt strength and/or low shear viscosity of a polyethylene resin. The method includes: a) providing a polyethylene composition including the reaction product of ethylene and optionally, one or more alpha-olefin comonomers, wherein the polyethylene composition is characterized by the following properties: a density ranging from 0.900 g/cm3 to 0.970 g/cm3, a molecular weight distribution (Mw/Mn) ranging from 2.6 to 3.5, and from 0.10 to 0.27 vinyl groups per 1,000 total carbon atoms; b) providing a masterbatch composition including a free radical generator and a polyethylene resin, wherein the free radical generator has a half-life at 220° C. of less than 200 seconds, and a decomposition energy higher than ?250 kJ/mol, and wherein the polyethylene resin has a density ranging from 0.900 g/cm3 to 0.970 g/cm3, melt index ranging from 0.
    Type: Grant
    Filed: September 14, 2018
    Date of Patent: December 7, 2021
    Assignees: Dow Global Technologies LLC, PBBPolisur S.R.L.
    Inventors: Surya Ssubramaniam, Mehmet Demirors, Teresa P. Karjala, Jorge C. Gomes, Guillermo A. Raimondi, Davidson Lütkenhaus, Marie De Luján Tricotti
  • Patent number: 11136422
    Abstract: A process for the synthesis of an ethylene/butadiene copolymer is provided. The process is continuous and comprises: a. feeding at least one stirred polymerization reactor with a mixture of ethylene, butadiene, hydrocarbon-based solvent and catalytic system allowing the formation of cyclic trans-1,2-cyclohexane units in the polymer chain with a mole ratio of ethylene to the sum of the ethylene and butadiene monomers ranging from 0.5 to 0.99; the concentration of ethylene and butadiene monomers in the polymerization reaction medium being at least 10% by weight relative to the total weight; the operating pressure of the reactor is greater than or equal to the saturated vapour pressure of the polymerization reaction medium; b. recovering the ethylene/butadiene copolymer, this copolymer comprising, statistically distributed, ethylene units, butadiene units and trans-1,2-cyclohexane units, the molar fraction of ethylene units in the copolymer being greater than or equal to 50%.
    Type: Grant
    Filed: April 16, 2018
    Date of Patent: October 5, 2021
    Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Julien Thuilliez, Nuno Pacheco
  • Patent number: 11078352
    Abstract: [Problem] The purpose of the invention is to provide: a thermoplastic elastomer composition capable of providing molded articles that are lightweight, have better oil resistance than those provided by conventional cross-linked thermoplastic elastomers, and have hardness and mechanical properties such as tensile strength and tensile elongation that are equal to or superior to those provided by conventional cross-linked thermoplastic elastomers; and an ethylene/?-olefin/unconjugated polyene copolymer having little compression set at low temperature as well as flexibility and an excellent balance of rubber elasticity at low temperature and tensile strength at normal temperature.
    Type: Grant
    Filed: March 17, 2016
    Date of Patent: August 3, 2021
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Kotaro Ichino, Tomohiro Yamaguchi, Yukio Aita, Yuji Noguchi
  • Patent number: 10882982
    Abstract: An object of the present invention is to provide a rubber composition for a tire having improved overall performances such as block crack resistance, abrasion resistance and heat build-up characteristic, and a tire having a tire member composed of this rubber composition. The rubber composition for a tire comprises a rubber component comprising 50% by mass or more of an isoprene rubber, 30% by mass or more of a butadiene rubber and 1 to 20% by mass of a styrene-butadiene rubber having a number-average molecular weight of 150,000 or more and a styrene content of 18 to 38% by mass, wherein a value obtained by multiplying a content (% by mass) of the styrene-butadiene rubber by a styrene content (% by mass) of the styrene-butadiene rubber is from 100 to 400.
    Type: Grant
    Filed: March 1, 2019
    Date of Patent: January 5, 2021
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Shingo Himeda
  • Patent number: 10875990
    Abstract: Rubber compositions having a modified rubber component selected from a modified polybutadiene rubber, a modified styrene-butadiene rubber, or combinations thereof, the modification being with a functional group having a hydrogen bond acceptor atom. Such functional group may be selected from a pyridine, a pyrrolidone, an ether, a ketone or an epoxide, the rubber composition having a Tg of between ?80° C. and ?110° C. The rubber composition may include an efficient plasticizing resin, which when included in a mixture consisting of the modified rubber component and 67 phr of the efficient plasticizing resin, causes a Tg of the mixture to be at least 14° C. higher than the Tg of the modified rubber component. The rubber composition may described as having the hydrogen bond acceptor atom located at least two covalent bond lengths or alternatively three covalent bond lengths from a backbone of the modified rubber component.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: December 29, 2020
    Assignee: Compagnie Generale des Etablissements Michelin
    Inventors: Constantine Khripin, Etienne Munch, Anne-Frédérîque Salit, Jessica McDowell, Xavier Saintigny
  • Patent number: 10851221
    Abstract: Crosslinkable polymeric compositions for use in, for instance, cable insulation layers, comprise an ethylene-based polymer, an organic peroxide, a crosslinking coagent, and a methyl-radical scavenger comprising at least one derivative of 2, 2, 6, 6-tetramethyl-1-piperidinyloxyl (“TEMPO”), wherein ratio of crosslinking coagent to organic peroxide is less than 1.72:1 on a molar basis. A crosslinked article prepared from a crosslinkable polymeric composition is also disclosed, the crosslinkable polymeric composition comprising, inter alia, a methyl-radical scavenger comprising at least one TEMPO derivative. In addition, a coated conducttor comprising a conductive core and a polymeric layer at least partially surrounding the conductive core is disclosed, wherein at least a portion of the polymeric layer comprises the crosslinked article.
    Type: Grant
    Filed: September 28, 2016
    Date of Patent: December 1, 2020
    Assignee: Dow Global Technologies LLC
    Inventors: Kainan Zhang, Yabin Sun, Jeffrey M. Cogen, Timothy J. Person, Jie Clive Ji, Cuilan Chang
  • Patent number: 10800865
    Abstract: Branched ethylene-propylene-diene elastomers (bEPDM) and processes for making the bEPDM's comprising combining a catalyst precursor and an activator at a temperature within a range from 90° C. to 160° C. with ethylene, a C3 to C12 ?-olefin, a non-conjugated diene, and a dual-polymerizable diene, where the catalyst precursor is a metallocene catalyst precursor, preferably according to one of various structures including any two ligands selected from cyclopentadienyl ligands and ligands isolobal to the cyclopentadienyl group.
    Type: Grant
    Filed: August 17, 2016
    Date of Patent: October 13, 2020
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Gabor Kiss, Jo Ann M. Canich, Guy J. Wouters, Robert P. Reynolds, Jr., Rainer Kolb, David J. Lohse, Florin Barsan
  • Patent number: 10669413
    Abstract: A foamable composition includes a semi-crystalline polyolefin having a crystallinity of at least 50% and a poly(sulfonyl azide) of at least 500 ppm based on the total weight of the foamable composition. The foamable composition has a melt strength of at least 20 cN, a melt drawability of at least 100 mm/s, flexural modulus is greater than about 240,000 psi. Such a composition can be used to make a low density foam having a density in the range from 0.005 g/cm3 to 0.6 g/cm3. A resulting foam or a fabricated article, the methods of the composition and the foam are also provided.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: June 2, 2020
    Assignee: Braskem America, Inc.
    Inventors: Kimberly Miller McLoughlin, William Scott Miller, Michael Robert Stephans, Steven Michael Krupinski
  • Patent number: 10577443
    Abstract: A thermoplastic elastomer composition contains components (A) to (D), wherein the content of the component (A), (B), (C) and (D) is, respectively, 26% by weight or more and 59% by weight or less, 2% by weight or more and 9% by weight or less, 16% by weight or more and 61% by weight or less and 11% by weight or more and 56% by weight or less, when the total amount of the components (A) to (D) is 100% by weight, and the ratio of the content of the component (C) to the content of the component (D) is over 1 and 5 or less.
    Type: Grant
    Filed: April 25, 2018
    Date of Patent: March 3, 2020
    Assignee: Sumitomo Chemical Company, Limited
    Inventor: Katsuya Kida
  • Patent number: 10562219
    Abstract: A method of forming a blown film comprising extruding a molten composition through a die opening to form a film; wherein the molten composition comprises at least one polyethylene and within the range from 0.10 wt % to 10 wt % of a cyclic-diene terpolymer by weight of the composition; causing the film to progress in a direction away from the die opening; cooling the film at a distance from the die opening, the distance adjusted to effect the properties of the film; and isolating a blown film therefrom.
    Type: Grant
    Filed: August 24, 2018
    Date of Patent: February 18, 2020
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Periagaram S. Ravishankar, Jianya Cheng, Adriana S. Silva, Wen Li, Abdelhadi Sahnoune, Arturo Leyva, Alexander I. Norman
  • Patent number: 10279527
    Abstract: Described herein are thermoplastic vulcanizates comprising propylene-based elastomers and methods for producing the same. The thermoplastic vulcanizates comprise rubber, at least 10 wt % of thermoplastic resin, from 1 to 9 wt % of propylene-based elastomer, oil, and at least 5 wt % of one or more fillers. The thermoplastic vulcanizates are made by a method where the propylene-based elastomer is introduced to the extrusion reactor before the curative is introduced to the extrusion reactor.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: May 7, 2019
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Randal H. Kerstetter, III, Porter C. Shannon, Joseph M. Tomei, Eugene R. Uhl
  • Patent number: 10214601
    Abstract: The polypropylene copolymer according to the present invention has a low melting point and also is excellent in the low temperature heat sealing effect, transparency and strength, and the film prepared therefrom can be effectively used as a sealing layer of the non-stretched polypropylene-based film.
    Type: Grant
    Filed: December 4, 2015
    Date of Patent: February 26, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Kyung Seop Noh, Ji Ho Choi, Churl Young Park, Ki Soo Lee, Sang Jin Jeon, Hee Kwang Park, Won-Sang Lee, Ah Young Seo
  • Patent number: 10137733
    Abstract: Provided is a pneumatic tire including a tread formed from a predetermined rubber composition to achieve greatly improved abrasion resistance while maintaining good wet-grip performance and good durability. The present invention relates to a pneumatic tire including a tread formed from a rubber composition, the rubber composition containing predetermined amounts of a specific oil-extended polybutadiene rubber, of an isoprene-based diene rubber and/or a styrene-butadiene rubber, of a specific carbon black, and of stearic acid, the oil-extended polybutadiene rubber being synthesized using a rare earth catalyst, the rubber composition having an amount of process oil of a predetermined value or less.
    Type: Grant
    Filed: October 21, 2014
    Date of Patent: November 27, 2018
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Tsuyoshi Tsuchida, Tatsuya Miyazaki
  • Patent number: 10124528
    Abstract: A method of forming a blown film comprising extruding a molten composition through a die opening to form a film; wherein the molten composition comprises at least one polyethylene and within the range from 0.10 wt % to 10 wt % of a cyclic-diene terpolymer by weight of the composition; causing the film to progress in a direction away from the die opening; cooling the film at a distance from the die opening, the distance adjusted to effect the properties of the film; and isolating a blown film therefrom.
    Type: Grant
    Filed: May 14, 2015
    Date of Patent: November 13, 2018
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Periagaram S. Ravishankar, Jianya Cheng, Adriana S. Silva, Wen Li, Abdelhadi Sahnoune, Arturo Leyva, Alexander I. Norman
  • Patent number: 10004293
    Abstract: The present method for producing a crosslinked product include the steps of: melt molding an ethylene copolymer (A) or a resin composition containing the ethylene copolymer (A); and carrying out crosslinking; wherein the ethylene copolymer (A) contains a constitutional unit derived from ethylene and a constitutional unit derived from an ?-olefin having 3 to 20 carbon atoms, and satisfies the following requirements (1), (2) and (3): (1) a vinyl group content per 1,000 carbon atoms as measured by 1H-NMR is from 0.06 to 1; (2) a ratio MFR10/MFR2.16 is from 8.5 to 50; and (3) a density d is from 850 kg/m3 to 920 kg/m3. The present method for producing a crosslinked product is capable of providing a crosslinked product having a good moldability and an excellent mechanical strength.
    Type: Grant
    Filed: February 4, 2015
    Date of Patent: June 26, 2018
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Hidetake Nakano, Kiminori Noda, Kazuaki Yasuda
  • Patent number: 9708476
    Abstract: Provided are a rubber composition for tires preventing discoloration and improving ozone resistance while maintaining or improving good elongation at break, and a pneumatic tire using the rubber composition. Included is a rubber composition for tires including: a rubber component; a naturally occurring wax containing 40-98% by mass of an ester component; a phenylenediamine antioxidant and/or a quinone antioxidant; and a specific nonionic surfactant, the rubber composition having an amount of diene rubber of 70-100% by mass per 100% by mass of the rubber component, the rubber composition having an amount of the naturally occurring wax of 0.01-5.0 parts by mass, an amount of petroleum-derived wax of 0-6.0 parts by mass, a combined amount of the phenylenediamine antioxidant and the quinone antioxidant of 1.0-8.0 parts by mass, and an amount of the nonionic surfactant of 0.1-5.0 parts by mass, each per 100 parts by mass of the rubber component.
    Type: Grant
    Filed: June 12, 2014
    Date of Patent: July 18, 2017
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Tatsuya Miyazaki, Ryuichi Tokimune
  • Patent number: 9580585
    Abstract: A high-flow and high-impact polyolefin resin composition comprises: about 5 to 96% by weight of an isotactic polypropylene-based resin; about 1 to 15% by weight of a low molecular weight atactic polypropylene resin having weight average molecular weight of about 10,000 to 100,000 g/mol; about 1 to 20% by weight of an ultra-high molecular weight atactic polypropylene resin having weight average molecular weight of about 1,000,000 to 2,500,000 g/mol; about 1 to 40% by weight of an inorganic filler; and about 1 to 20% by weight of a rubber.
    Type: Grant
    Filed: September 23, 2015
    Date of Patent: February 28, 2017
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION, LOTTE CHEMICAL CORPORATION
    Inventors: Yong Bum Lee, Seok Hwan Kim, Jong Hyun Kim, Byung Kook Nam, Sung Min Cho, Noh Gyoung Kim
  • Patent number: 9309114
    Abstract: The process for manufacturing porous nanoparticles disclosed herein includes feeding a dry-blended mixture of at least one resin and a neutralizing agent into a feed section of a screw extruder, injecting a surfactant solution downstream of the hopper, and adding an aqueous composition both directly after the surfactant solution as well as further downstream. Porous nanoparticles having a particle size of from about 50 nm to about 2 ?m and a pore diameter of from about 20 nm to about 400 nm may be continuously recovered from the extruder following this process.
    Type: Grant
    Filed: January 14, 2013
    Date of Patent: April 12, 2016
    Assignee: XEROX CORPORATION
    Inventors: David John William Lawton, Santiago Faucher
  • Patent number: 9139728
    Abstract: A pellet composed of a polymeric blend having a composition of between 99.5-51 wt % polyolefin and 0.5-49.9 wt % polylactic acid.
    Type: Grant
    Filed: May 15, 2013
    Date of Patent: September 22, 2015
    Assignee: FINA TECHNOLOGY, INC.
    Inventors: Fengkui Li, John Ashbaugh, David Rauscher
  • Patent number: 9040633
    Abstract: The present invention relates to a polymer composition, comprising: (i) a polypropylene matrix; (ii) a first elastomeric phase dispersed within the matrix and having a glass transition temperature Tg1, measured with dynamical mechanical thermal analysis according to ISO 6721-2, wherein the first elastomeric phase comprises an ethylene copolymer having comonomer units derived from C3 to C8 olefins; (iii) a second elastomeric phase dispersed within the matrix, wherein the second elastomeric phase is crosslinked and has a glass transition temperature Tg2, measured with dynamical mechanical thermal analysis according to ISO 6721-2, within the range of ?70° C. to ?90° C., wherein the difference between Tg1 and Tg2 is at least 15° C. and Tg1 is higher than Tg2.
    Type: Grant
    Filed: October 27, 2008
    Date of Patent: May 26, 2015
    Assignee: Borealis Technology Oy
    Inventors: Klaus Bernreitner, Tung Pham, Jens Reussner
  • Publication number: 20150125645
    Abstract: A crack-resistant article comprising a diene terpolymer, the diene terpolymer comprising (or consisting essentially of) from 0.01 wt % to 10.0 wt % diene derived units, and 1.0 wt % to 20 wt % of C4 to C10 ?-olefin derived units based on the weight of the diene terpolymer, wherein the diene terpolymer: a) has a g?vis of less than 0.90; b) has an Mw within a range of from 100,000 g/mol to 500,000 g/mol; c) has an Mw/Mn within the range of from 3.5 to 12.0; and d) an Mz/Mn of greater than 7.0. Inventive articles comprise a blend of a relatively high density linear polyethylene and the diene terpolymer.
    Type: Application
    Filed: January 14, 2015
    Publication date: May 7, 2015
    Inventors: Jianya Cheng, Pradeep P. Shirodkar, Peijun Jiang, Andrew Takacs
  • Patent number: 9023906
    Abstract: To provide a propylene-based copolymer and a propylene-based copolymer composition, each of which has a high melt tension because it has a long-chain branched structure, exhibits excellent molding processability during molding, such as inflation molding, extrusion molding, blow molding, injection molding or vacuum forming, and is capable of favorably providing a foamed product having an excellent expansion ratio and excellent cell uniformity in the foaming stage. The propylene-based copolymer (A) of the present invention comprises 50 to 95% by mol of constituent units [i] derived from propylene, 4.9 to 49.9% by mol of constituent units [ii] derived from an ?-olefin of 2 to 10 carbon atoms other than propylene and 0.1 to 10% by mol of constituent units [iii] derived from a non-conjugated polyene (with the proviso that the total amount of the constituent units [i], [ii] and [iii] is 100% by mol), and is characterized by satisfying specific requirements (a) and (c).
    Type: Grant
    Filed: May 17, 2012
    Date of Patent: May 5, 2015
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Masahiko Okamoto, Mayumi Yasuda, Tetsuji Kasai, Kazuyoshi Kaneko, Kyoko Kobayashi, Kotaro Ichino
  • Patent number: 9000112
    Abstract: The present invention relates to a resin mixture for melt processing, comprising a first resin; and a second resin comprising an acrylate-based copolymer including silica particles and having a polydispersity index (PDI) of 1 to 2.5, a method for preparing a resin-molded article using the same, and a resin-molded article. Surface characteristics of the molded article can be improved and excellent scratch resistance can be obtained by using the resin composition. In addition, processing time can be reduced, productivity is increased, and manufacturing costs are lowered by omitting the additional surface coating step.
    Type: Grant
    Filed: October 14, 2011
    Date of Patent: April 7, 2015
    Assignee: LG Chem, Ltd.
    Inventors: Jin Young Ryu, Houng Sik Yoo, Hak Shin Kim, Eun Joo Choi, Young Jun Hong
  • Publication number: 20150072143
    Abstract: Adhesive composition are described comprising the reaction product of at least one halogenated copolymer of isobutylene wherein halogen atoms of the copolymer are replaced by a polyamine having a melting point greater than 25° C., thereby crosslinking the copolymer. The isobutylene copolymer comprises halogenated repeat units derived from isoprene, butadiene, para-alkyl styrene, or a combination thereof. The adhesive composition comprises a copolymer of isobutylene repeat units and second repeat units selected from alkene repeat units, para-methyl styrene repeat units, or a combination thereof wherein at least a portion of the second repeat units are directly bonded to one another with a polyamine crosslinker having a melting point greater than 25° C. Also described are adhesive articles, such as tapes, comprising such adhesives.
    Type: Application
    Filed: February 6, 2013
    Publication date: March 12, 2015
    Inventors: Hae-Seung Lee, Pierre R. Bieber, Joon Chatterjee, Siegfried R. Goeb, Babu N. Gaddam
  • Publication number: 20150056392
    Abstract: Provided are compositions comprising: (a) an ethylene-propylene-diene terpolymer having a Mooney viscosity [ML(1+4) 125° C.] of about 25 to about 300 and an ethylene content of at least about 60 wt % of the ethylene-propylene-diene terpolymer; and (b) a polyolefin elastomer. The presence of the polyolefin elastomer improves rheological properties of the composition to an extent that does not significantly compromise other properties, such as tensile strength at break and compression set.
    Type: Application
    Filed: March 9, 2012
    Publication date: February 26, 2015
    Applicant: Exxon Mobil Chemical Patents Inc.
    Inventors: Liang Li, Milind B. Joshi, Jian Shen, Eric P. Jourdain, Virendra K. Tiwari, Jun Tong, Pradeep P. Patki
  • Patent number: 8962760
    Abstract: Objects of the present invention are to provide a rubber composition that can obtain a rubber elastic body having small rolling resistance and excellent impact resilience and a method for producing the same, and to provide a tire having small rolling resistance and excellent impact resilience. The rubber composition of the present invention is obtained by kneading a conjugated diene polymer (A) having a group with bonding reactivity to silica only at one site of one molecule of the polymer, a polymer (B) having groups with bonding reactivity to silica at a plurality of sites of one molecule of the polymer, and a filler (C) containing silica.
    Type: Grant
    Filed: February 15, 2012
    Date of Patent: February 24, 2015
    Assignee: JSR Corporation
    Inventors: Takeshi Yuasa, Koji Okada
  • Patent number: 8962752
    Abstract: This invention relates to a rubber composition being excellent in the low heat buildup and fracture properties (resistance to crack growth). and more particularly to a rubber composition, characterized by compounding 10-100 parts by mass of an inorganic filler and/or carbon black based on 100 parts by mass of a rubber component including not less than 10 mass % of a modified conjugated diene-based polymer having a cis-1,4 bond content of not less than 90% and a vinyl bond content of not more than 1.2% and a primary amino group. In this case, the modified conjugated diene-based polymer is obtained by (1) reacting the predetermined conjugated diene-based polymer having an active terminal with a compound having two or more predetermined functional groups and (2) further reacting the resulting product with a compound having a primary amino group.
    Type: Grant
    Filed: April 22, 2014
    Date of Patent: February 24, 2015
    Assignee: Bridgestone Corporation
    Inventors: Junko Matsushita, Yoichi Ozawa
  • Publication number: 20150045496
    Abstract: The present disclosure relates to a thermo-reversible and self-healing blend comprising polybutadiene compounded with at least one ring opening agent and at least one ring compound containing at least one hetero-cyclic compound and at least one grafting enabling moiety, wherein the ring opening agent is capable of opening the ring compound to provide at least one open functional group to which the ring opening agent is capable of bonding, and wherein the ring compound is capable of grafting on the backbone of a polymer through the grafting enabling moiety. The present disclosure also relates to a process for preparing a thermo-reversible and self-healing blend and its use in preparing molded articles.
    Type: Application
    Filed: March 14, 2013
    Publication date: February 12, 2015
    Inventors: Rakshvir Jasra, Madhuchhanda Maiti, Vivek Srivastava
  • Patent number: 8940837
    Abstract: The present invention is a polyolefin composition, which comprises a thermoplastic olefin polymer and a polyethylene. The thermoplastic olefin polymer (TPO) comprises a polypropylene and an olefin copolymer and is present in an amount of about 10 weight percent to about 50 weight percent; the TPO has a density in the range of about 0.85 g/cm3 to about 0.92 g/cm3 and a flexural modulus of less than about 700 MPa as measured by ISO 178. The polyethylene is either a medium density polyethylene or a high density polyethylene and present in an amount of about 50 weight percent to about 90 weight percent. The polyolefin composition is useful for preparing articles of manufacture such as sheets, roofing membranes, geomembranes, soft skins, drawn tapes, drawn fibers, and drawn filaments.
    Type: Grant
    Filed: August 8, 2013
    Date of Patent: January 27, 2015
    Assignee: Equistar Chemicals, LP
    Inventors: Fabio Ceccarani, Paolo Goberti
  • Patent number: 8927656
    Abstract: Objects of the present invention are to provide a rubber composition that can obtain a rubber elastic body having small rolling resistance and excellent impact resilience and a method for producing the same, and to provide a tire having small rolling resistance and excellent impact resilience. The rubber composition of the present invention is obtained by kneading a conjugated diene polymer (A) having a group with bonding reactivity to silica only at one site of one molecule of the polymer, a polymer (B) having groups with bonding reactivity to silica at a plurality of sites of one molecule of the polymer, and a filler (C) containing silica.
    Type: Grant
    Filed: February 15, 2012
    Date of Patent: January 6, 2015
    Assignee: JSR Corporation
    Inventors: Takeshi Yuasa, Koji Okada
  • Patent number: 8916647
    Abstract: The invention provides cross-linked polymeric films, laminates, membranes or other polymeric articles, which show rubber like heat resistance (hot set) and dimensional stability above the polymer melting point, while maintaining heat sealing properties. For example, the invention provides a film comprising at least one layer formed from a composition comprising the following components: A) at least one polymer selected from the group consisting of the following: i) an ethylene-based polymer, ii) an ethylene/?-olefin/diene interpolymer, and ii) a C4-C10 olefin-based polymer; B) at least one polymer selected from the group consisting of a propylene/ethylene interpolymer and a propylene/&alpha,- -olefin interpolymer; and wherein the film is crosslinked using radiation and/or chemicals.
    Type: Grant
    Filed: July 13, 2009
    Date of Patent: December 23, 2014
    Assignee: Dow Global Technologies LLC
    Inventors: Karl Zuercher, Stefan Ultsch
  • Patent number: 8912284
    Abstract: The present invention relates to a crosslinkable polymer composition, comprising (i) an unsaturated polyolefin having a total amount of carbon-carbon double bonds/1000 carbon atoms of more than 0.37, and (ii) a polar copolymer.
    Type: Grant
    Filed: June 1, 2006
    Date of Patent: December 16, 2014
    Assignee: Borealis Technology Oy
    Inventors: Jan-Ove Boström, Annika Smedberg
  • Publication number: 20140364573
    Abstract: The invention relates to a high-molecular-weight, linear, neodymium-catalysed polybutadiene having a high proportion, >95%, of cis-1,4 units having a low proportion, <1%, of 1,2-vinyl content, and also having a small molar-mass-polydispersity index (MPI), characterized in that Mooney viscosity (ML1+4 100° C.) of the polybutadiene is from 70 to 90 and The molar-mass-polydispersity index of the polybutadiene is smaller than 10.
    Type: Application
    Filed: August 27, 2014
    Publication date: December 11, 2014
    Inventors: Heike Kloppenburg, Norbert Steinhauser
  • Patent number: 8883884
    Abstract: The present invention is directed to a pneumatic tire comprising at least one component, the at least one component comprising a polymer blend comprising a copolymer and an additional polymer, the copolymer comprising: a polymeric backbone chain derived from a monomer comprising at least one conjugated diene monomer and optionally at least one vinyl aromatic monomer; and polymeric sidechains bonded to the backbone chain, the sidechains comprising a polymer immiscible with the backbone; the additional polymer consisting of a polymer miscible with the polymeric sidechains.
    Type: Grant
    Filed: November 27, 2012
    Date of Patent: November 11, 2014
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Liqing Ma, Robert Fokko Roskamp, Ralf Mruk, Frank James Feher, Bruce Raymond Hahn
  • Patent number: 8883924
    Abstract: Provided is a resin blend including a first resin and a second resin, the second resin having a hydrophobic functional group in a side chain and having a surface energy difference of 0.1 to 20 mN/m from the first resin at 25° C., the resin blend being capable of forming a layer separation structure. Also, provided are a pellet, a method for preparing the same, and a resin molding article having a specific layer separation structure. The resin blend may not only improve mechanical properties and surface hardness of the molding article but also shorten process time, increase productivity and reduce production cost by omitting an additional surface coating step.
    Type: Grant
    Filed: August 12, 2013
    Date of Patent: November 11, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Houng Sik Yoo, Jin Young Ryu, Woo Sung Kim, Han Na Lee, Eun Joo Choi, Hyeon Choi
  • Patent number: 8877867
    Abstract: A process for preparing modified thermoplastic vulcanizate compositions, the process comprising the steps of introducing molten thermoplastic vulcanizate and a free-radical source, where the thermoplastic vulcanizate includes cured rubber dispersed within a thermoplastic matrix.
    Type: Grant
    Filed: October 15, 2009
    Date of Patent: November 4, 2014
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Hari P. Nadella, Jianya Cheng
  • Publication number: 20140323643
    Abstract: The present invention is a refrigerator interior liner made of a rubber modified monovinylaromatic polymer composition comprising: a) a monovinylaromatic polymer matrix having an average molecular weight in weight Mw above 150,000 g/mol, b) rubber particles dispersed therein, said particles having: a volume median particle size (RPS volume) of about 8.5 ?m, a monomodal distribution with essentially no shoulder, a low-to-moderate crosslinking of the rubber expressed as a swell index (SI) above 13.8, a rubber phase volume fraction (RPVF) of at least 39%, c) a moderate amount of low- Mw plasticizers, defined as the weight fraction of solubles in methanol, and such that the weight ratio c/(a+b+c) ranges from 0 to 5%.
    Type: Application
    Filed: March 24, 2014
    Publication date: October 30, 2014
    Applicant: Total Research & Technology Feluy
    Inventors: Michel Duc, Jan Neelen, Mark O'Neill
  • Patent number: 8871870
    Abstract: Synthesized base resin compositions that include a raw resin and a maleimide and/or bismaleimide monomer as well as compounded varnishes that include a raw resin or synthesized base resin as well as a monomer, flame retardant and initiator as well as prepregs and laminates made using the synthesized base resin and compounded varnishes.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: October 28, 2014
    Assignee: Isola USA Corp.
    Inventors: Guroen He, Tarun Amla, Larry D. Olson, Peggy Conn
  • Publication number: 20140316068
    Abstract: A bimodal toughening agent comprising a) a first preformed coreshell toughening agent and b) a second preformed coreshell toughening agent wherein the second preformed coreshell toughening agent has a particle size of at least two times larger than that of the first preformed coreshell toughening agent, and the use of the bimodal toughening agent in a thermosettable epoxy resin composition, is disclosed.
    Type: Application
    Filed: November 1, 2012
    Publication date: October 23, 2014
    Applicant: DOW GLOBAL TECHNOLOGIES LLC
    Inventors: George C. Jacob, Yasmin N. Srivastava, Nikhil E. Verghese, Theofanis Theofanous, Ludovic Valette, Ha Q. Pham
  • Patent number: 8865838
    Abstract: Provided are methods for producing a thermoplastic vulcanizate. One method includes charging vulcanizable rubber to a reactor; charging a masterbatch of thermoplastic resin and a catalyst for a phenolic resin curative to the reactor; charging a phenolic resin curative to the reactor; and dynamically vulcanizing the rubber with the phenolic resin curative in the presence of the catalyst. Also provided are thermoplastic vulcanizates made by the methods of the invention.
    Type: Grant
    Filed: November 24, 2010
    Date of Patent: October 21, 2014
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Stephen F. Roche, Randal H. Kerstetter
  • Publication number: 20140309359
    Abstract: A heterogeneous in-situ polymer blend comprising a continuous phase comprising a polypropylene having a crystallinity of at least 30% and a melting point temperature Tm greater than 130° C., and a heat of fusion ?Hf greater than 65 J/g; and a dispersed phase comprising particles of an elastomeric copolymer dispersed in the continuous phase and having an average particle size of less than 5 micron, the elastomeric copolymer comprising ethylene units and 0.001 to 5 wt % diene by weight of the copolymer, and having a crystallinity of less than 20% and being at least partially cross-linked such that the degree of cross-link is at least 20%.
    Type: Application
    Filed: June 26, 2014
    Publication date: October 16, 2014
    Inventors: Peijun Jiang, Armenag Dekmezian, Aspy K. Mehta, Sunny Jacob, Andrew G. Narvaez, Jr., Pradeep P. Shirodkar, Weiqing Weng
  • Publication number: 20140309358
    Abstract: A heterogeneous vulcanized polymer blend comprising a continuous phase comprising a thermoplastic polypropylene having a crystallinity of at least 30% and a dispersed phase comprising particles of an elastomeric copolymer dispersed in the continuous phase and having an average particle size of less than 5 micron. The elastomeric copolymer has a crystallinity of less than 20% and is at least partially cross-linked such that no more than about 80 wt % of the elastomeric copolymer is extractable in cyclohexane at 23° C.
    Type: Application
    Filed: June 26, 2014
    Publication date: October 16, 2014
    Inventors: Sunny Jacob, Peijun Jiang, Aspy K. Mehta, Pradeep P. Shirodkar, Armenag H. Dekmezian
  • Publication number: 20140303324
    Abstract: A high impact polystyrene (HIPS) is made from styrene monomer and 3 to 20 wt % of an elastomeric component phase including polybutadiene rubber and styrene butadiene copolymer. The HIPS has a 60 degree gloss of 90 or more, a Gardner drop of at least 10 in-lb, and an Izod impact strength of 1.8 ft-lb/in or more. The HIPS can have salami morphology with rubber particle size between 1 and 1.3 microns.
    Type: Application
    Filed: February 14, 2014
    Publication date: October 9, 2014
    Applicant: FINA TECHNOLOGY, INC.
    Inventors: David W. Knoeppel, Likuo Sun, Jon Tippet
  • Publication number: 20140303325
    Abstract: Composition comprising a polypropylene matrix (M-PP), at least one elastomeric copolymer (EP), a high density polyethylene (HDPE) being bimodal or multimodal, and a filler (F).
    Type: Application
    Filed: June 18, 2014
    Publication date: October 9, 2014
    Inventors: Klaus Bernreitner, Claudia Kniesel, Robert Gubo, Klaus Maureder
  • Patent number: 8853329
    Abstract: The present invention relates to an adhesive, comprising at least one polymer system obtained by a process for reducing the melt viscosity of at least one polymer blend starting material, wherein the process comprises the step of treating at least one polymer blend with at least one radical donor under shear stress at a temperature above the softening point of said polymer blend.
    Type: Grant
    Filed: September 26, 2011
    Date of Patent: October 7, 2014
    Assignees: Henkel AG & Co. KGAA, Henkel US IP LLC
    Inventors: Dirk Kasper, Thomas Möller, Gunter Hoffmann, Knut Hoffmann, Andy Swain, Claudia Yaacoub, Maria Cristina Barbosa Dejesus
  • Patent number: 8852718
    Abstract: Surface coating composition, method and apparatus for coating a surface. The surface coating composition comprises a recycled rubber product, one or more binding agent and optionally one or more additional agent.
    Type: Grant
    Filed: February 15, 2013
    Date of Patent: October 7, 2014
    Inventors: Mathieu Malboeuf, Dorian Braun
  • Patent number: 8846814
    Abstract: The present invention relates to the use of polyolefins having isotactic structural elements in floor coverings, in particular in carpets or artificial lawns.
    Type: Grant
    Filed: January 22, 2009
    Date of Patent: September 30, 2014
    Assignee: Evonik Degussa GmbH
    Inventors: Hinnerk Gordon Becker, Marlies Vey, Lutz Mindach
  • Patent number: 8846819
    Abstract: A method is provided for synthesizing a core-shell nanoparticle that includes the following steps: providing a polymeric seed (in a solvent) that includes a mono-vinyl monomer cross-linked with a cross-linking agent to form the core of the nanoparticle, the core has an average diameter of from about nanometers to about 10,000 nanometers, and the core has polymer chains with living ends; adding a stabilizer to stabilize the seed and prevent the seed from precipitating out of solution; and grafting a shell species onto the living ends of the core to form the shell of the nanoparticle. A core-first synthesized nanoparticle, along with a rubber composition and tire product are also provided.
    Type: Grant
    Filed: December 29, 2009
    Date of Patent: September 30, 2014
    Assignee: Bridgestone Corporation
    Inventors: Yaohong Chen, Mindaugas Rackaitis, Xiaorong Wang, Hideki Kitano