Ethylene-propylene Terpolymer, E.g., Ept, Epdm, Epr, Etc. Patents (Class 525/331.7)
  • Patent number: 10548367
    Abstract: Disclosed are footwear soles comprising a propylene-based elastomer. The presence of the propylene-based elastomer provides the footwear sole with a well-balanced combination of desired properties, including low density, low compression set, and weldability.
    Type: Grant
    Filed: January 29, 2013
    Date of Patent: February 4, 2020
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Leander Kenens, Randal H. Kerstetter, III
  • Patent number: 9963580
    Abstract: A rubber composition includes a sulfur-crosslinkable diene rubber, from 1 to 100 parts by mass of carbon black and/or from 5 to 150 parts by mass of an inorganic filler, from 0.5 to 30 parts by mass of a sulfur-containing compounding agent, and from 0.01 to 20 parts by mass of a phosphine borane compound based on 100 parts by mass of the sulfur-crosslinkable diene rubber. The rubber composition may be applied in at least one type selected from the group consisting of a capped tread, a side wall, a belt, an inner liner, a carcass, and a bead of a pneumatic tire.
    Type: Grant
    Filed: August 6, 2015
    Date of Patent: May 8, 2018
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventor: Yusuke Tanabe
  • Publication number: 20150148435
    Abstract: The invention concerns a method of devulcanising vulcanised rubber which comprises the following steps: a) providing at least one vulcanised rubber composition; b) grinding the vulcanised rubber into chips or pellets; c) mixing the ground rubber obtained from step b) in such a way as to homogenise the form and temperature of same. d) carrying out a non-degrading mechanical treatment on the mixed rubber at the end of step c) to obtain a polymeric composite. The invention also concerns a thermoplastic material and an elastomeric mixture which comprise, in the formulation of same, at least one polymeric composite obtained by this method of devulcanisation.
    Type: Application
    Filed: June 10, 2013
    Publication date: May 28, 2015
    Inventor: Daniel Arnaud
  • Patent number: 9034990
    Abstract: Injection molded articles and process of forming the same are described herein. The processes generally include providing a polyolefin including one or more propylene heterophasic copolymers, the polyolefin having an ethylene content of at least 10 wt. % based on the total weight of the polyolefin; contacting the polyolefin with a polylactic acid and a reactive modifier to form a compatiblized polymeric blend, wherein the reactive modifier is produced by contacting a polypropylene, a multifunctional acrylate comonomer, and an initiator under conditions suitable for the formation of a glycidyl methacrylate grafted polypropylene (PP-g-GMA) having a grafting yield in a range from 1 wt. % to 15 wt. %; and injection molding the compatibilized polymeric blend into an article.
    Type: Grant
    Filed: August 1, 2013
    Date of Patent: May 19, 2015
    Assignee: FINA TECHNOLOGY, INC.
    Inventors: Fengkui Li, John Ashbaugh, Gabriel Desille, Caroline Schils
  • Publication number: 20150038031
    Abstract: A roofing membrane comprising an olefinic rubber; and from about 20 to about 250 parts by weight of a silica filler per 100 parts by weight rubber; wherein the silica filler is chemically coupled to the olefinic rubber; and wherein the roofing membrane is non-black.
    Type: Application
    Filed: July 29, 2014
    Publication date: February 5, 2015
    Inventors: Hao WANG, James A. DAVIS, Willam F. BARHAM
  • Patent number: 8859638
    Abstract: A low pressure, low volatile, low energy method to make an ethylene, propylene diene terpolymer latex usable in paints, adhesives, and as a coating.
    Type: Grant
    Filed: March 27, 2014
    Date of Patent: October 14, 2014
    Assignee: Lion Copolymer Geismar, LLC
    Inventors: Michael J. Molnar, George A. Von Bodungen, Subir Debnath, Harold William Young, Jr., Zhiyong Zhu
  • 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
  • Publication number: 20140296423
    Abstract: Objects of the invention are to obtain ethylene copolymers which have excellent rubber elasticity even without being crosslinked and maintain sufficient shaping processability even when filled with significantly large amounts of additives, and to provide methods for producing with good productivity films or sheets having flexibility and high stretchability. The invention is directed to an ethylene copolymer (X) including structural units derived from a component [A], a component [B] and a component [C] which are ethylene [A], an ?-olefin of 3 to 20 carbon atoms [B] and a polyene and/or a cyclic olefin [C]. In the ethylene copolymer, (1) the content of structural units derived from the ethylene [A] is in the range of 50 to 90 mol % in 100 mol % of all the structural units in the copolymer (X); (2) the content of structural units derived from at least one polyene and/or the cyclic olefin [C] is in the range of 1.0 to 5.
    Type: Application
    Filed: October 12, 2012
    Publication date: October 2, 2014
    Inventors: Hiroki Ebata, Yoshiharu Kikuchi, Yuji Ishii, Yoshihisa Matsuo
  • Publication number: 20140248067
    Abstract: A modified polymer body 1 has a polymer body 2 composed of a polymer material containing a carbon-carbon double bond and first binding parts 3 and second binding parts 4 bound to the surface of the polymer body 2. The first binding parts 3 are such that an organic group 6 having a functional group is bound via an isocyanuric acid skeleton 5 to the surface of the polymer body 2. The second binding parts 4 are such that an organic group 7 having a functional group is directly bound to the surface of the polymer body 2 without interposing an isocyanuric acid skeleton 5.
    Type: Application
    Filed: May 15, 2014
    Publication date: September 4, 2014
    Applicant: TOKAI RUBBER INDUSTRIES, LTD.
    Inventors: Yosuke Hayashi, Shuichi Egawa, Yasuyuki Hayasaki
  • Patent number: 8796383
    Abstract: Films (or a cap layer of co-extruded films) and methods of forming the same are described herein. The films generally include a modified olefin based polymer including polypropylene and from 1 wt. % to 30 wt. % polylactic acid (PLA), wherein the modified olefin based polymer exhibits a seal initiation temperature (SIT) that is at least 5° C. less than a seal initiation temperature of the polypropylene absent the PLA and a hot tack range of at least 20° C.
    Type: Grant
    Filed: February 2, 2011
    Date of Patent: August 5, 2014
    Assignee: Fina Technology, Inc.
    Inventors: Fengkui Li, John Ashbaugh
  • Patent number: 8759446
    Abstract: A composition comprising a blend of a polyolefin, polylactic acid, and a reactive modifier. A method of producing an oriented film comprising reactive extrusion compounding a mixture comprising polypropylene, polylactic acid, a reactive modifier to form a compatibilized polymeric blend, casting the compatibilized polymeric blend into a film, and orienting the film. A method of preparing a reactive modifier comprising contacting a polyolefin, a multifunctional acrylate comonomer, and an initiator under conditions suitable for the formation of an epoxy-functionalized polyolefin wherein the epoxy-functionalized polyolefin has a grafting yield of from 0.2 wt. % to 15 wt. %.
    Type: Grant
    Filed: June 30, 2008
    Date of Patent: June 24, 2014
    Assignee: Fina Technology, Inc.
    Inventors: Fengkui Li, Tim J. Coffy, Michel Daumerie
  • Patent number: 8674029
    Abstract: The present invention generally relates to a process for preparing stabilized polymeric systems with excellent light, thermal and oxidation stability using an active, peroxide containing polymer oxidizing agents, amine-containing reducing agents, and/or nano-additives, and the polymer articles made therefrom.
    Type: Grant
    Filed: August 6, 2010
    Date of Patent: March 18, 2014
    Assignee: Sunocs LLC
    Inventor: Chengqian Song
  • Patent number: 8653197
    Abstract: The disclosure is directed to a thermoplastic vulcanizate composition comprising a dynamically-cured rubber; from about 20 to about 300 parts by weight of a thermoplastic resin per 100 parts by weight rubber and from about 30 to about 250 parts by weight additional oil per 100 parts by weight rubber; wherein the rubber comprises a multimodal polymer composition cured with a curing agent, the multimodal polymer composition comprising 45 to 75 wt % of a first polymer fraction and 25 to 55 wt % of a second polymer fraction, each comprising ethylene, a C3-C10 alpha-olefin, and a non-conjugated diene. A method of producing the thermoplastic vulcanizate is also disclosed.
    Type: Grant
    Filed: April 13, 2012
    Date of Patent: February 18, 2014
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Maria D. Ellul, Periagaram S. Ravishankar, Jianya Cheng, Paul E. McDaniel
  • Patent number: 8653170
    Abstract: Described in one aspect is a process for preparing a low durometer thermoplastic vulcanizate composition comprising melt blending one or more thermoplastic polymer(s) with a cross-linkable elastomer under conditions of dynamic vulcanization; adding at or after the start of the melt blending at least one curative agent for the elastomer so as to cross-link the elastomer during the melt blending; introducing process oil into the melt blending before, during and/or after the addition of the curative agent; and, extruding a fully crosslinked thermoplastic vulcanizate having a Shore A Hardness of less than 25.
    Type: Grant
    Filed: March 15, 2006
    Date of Patent: February 18, 2014
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Hari Prasad Nadella, Ronald DeYoung, Jianya Cheng
  • Publication number: 20140045999
    Abstract: The present invention provides a medical rubber having high cleanliness and excellent compression set resistance. The present invention relates to a medical rubber including an ethylene-propylene-diene rubber crosslinked by an organic peroxide having no aromatic ring structure.
    Type: Application
    Filed: August 9, 2013
    Publication date: February 13, 2014
    Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Kazuo FUTAMATA, Kazuo Hochi, Tatsuya Kubo
  • Patent number: 8530585
    Abstract: The present invention provides a crosslinker used for crosslinking a polymer material having, in the molecule thereof, a multiple bond reactable with a nitrile oxide, the crosslinker including a bifunctional nitrile oxide having an aromatic nitrile oxide derivative structure in which one hydrogen atom of an aromatic ring is substituted with a nitrile oxide group and all hydrogen atoms at an ortho-position of the nitrile oxide group are substituted with a substituent other than a nitrile oxide group, wherein two such aromatic nitrile oxide derivative structures are bonded to either two oxy groups of a di-oxy structure having the two oxy groups or two carbonyl groups of a di-carbonyl structure having the two carbonyl groups.
    Type: Grant
    Filed: February 18, 2011
    Date of Patent: September 10, 2013
    Assignees: Toyoda Gosei Co., Ltd., Tokyo Institute of Technology
    Inventors: Akishige Seo, Hideyuki Imai, Naoki Iwase, Toshikazu Takata, Yasuhito Koyama, Morio Yonekawa
  • Patent number: 8530577
    Abstract: Injection molded articles and process of forming the same are described herein. The processes generally include providing a polyolefin including one or more propylene heterophasic copolymers, the polyolefin having an ethylene content of at least 10 wt. % based on the total weight of the polyolefin; contacting the polyolefin with a polylactic acid and a reactive modifier to form a compatiblized polymeric blend, wherein the reactive modifier is produced by contacting a polypropylene, a multifunctional acrylate comonomer, and an initiator under conditions suitable for the formation of a glycidyl methacrylate grafted polypropylene (PP-g-GMA) having a grafting yield in a range from 1 wt. % to 15 wt. %; and injection molding the compatibilized polymeric blend into an article.
    Type: Grant
    Filed: February 8, 2011
    Date of Patent: September 10, 2013
    Assignee: Fina Technology, Inc.
    Inventors: Fengkui Li, John Ashbaugh, Gabriel Desille, Caroline Schils
  • Patent number: 8507611
    Abstract: The present invention provides a production method of a crosslinkable polymer material which includes adding 2 -(glycidyloxy)-1-naphthonitrile oxide or 2-[5 -(ethoxycarbonyl)pentyloxy]-1-naphthonitrile oxide by an addition reaction to a polymer material having a multiple bond to which a nitrile oxide is added by an addition reaction so as to introduce a glycidyl group or an ethoxycarbonyl group into the polymer material.
    Type: Grant
    Filed: February 21, 2011
    Date of Patent: August 13, 2013
    Assignees: Toyoda Gosei Co., Ltd., Tokyo Institute of Technology
    Inventors: Akishige Seo, Hideyuki Imai, Naoki Iwase, Yusuke Katono, Toshikazu Takata, Yasuhito Koyama, Kaori Miura
  • Patent number: 8507610
    Abstract: The present invention provides a production method of a modified polymer material produced by modifying a polymer material having in a molecule thereof a multiple bond that reacts with a nitrile oxide, includes reacting the polymer material with an aromatic nitrile oxide derivative having a substituent at an ortho-position of a nitrile oxide group of an aromatic nitrile oxide in which the nitrile oxide group is bonded to an aromatic ring.
    Type: Grant
    Filed: February 25, 2010
    Date of Patent: August 13, 2013
    Assignees: Toyoda Gosei Co., Ltd., Tokyo Institute of Technology
    Inventors: Akishige Seo, Hideyuki Imai, Naoki Iwase, Toshikazu Takata, Yasuhito Koyama
  • Patent number: 8461272
    Abstract: The invention relates to a process and compositions suitable for reducing by heat the molecular weight of polypropylene, propylene copolymers or polypropylene blends. Azo compounds bearing different substituents are added to the polymers.
    Type: Grant
    Filed: March 29, 2006
    Date of Patent: June 11, 2013
    Assignee: BASF SE
    Inventors: Michael Roth, Rudolf Pfaendner, Carl-Eric Magnus Wilén, Ronan Nicolas
  • Publication number: 20130096263
    Abstract: The invention provides a crosslinked composition formed by thermally treating a composition comprising at least the following: A) an ethylene-based polymer that has a density less than, or equal to, 0.910 g/cc; B) an olefin-based polymer that has a melt viscosity less than, or equal to, 20,000 cP, at 350° F.; and C) a crosslinking agent.
    Type: Application
    Filed: June 21, 2011
    Publication date: April 18, 2013
    Applicant: DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Peter R. Voorheis, Brian W. Walther, Selim Yalvac
  • Patent number: 8399571
    Abstract: The present invention relates to modified polyolefins having a propylene content of at least 50 ma-% and a maximum of 75 ma-%, being determined by means of 13C-NMR spectroscopy, and having a poly(ethylene) triad content of a maximum of 2.5 ma-%, being determined by means of 13C-NMR spectroscopy, relative to the total detected ethylene content, a melting heat of at least 9 and a maximum of 20 J/g, determined by means of differential calorimetry, and a solubility in xylol at ambient temperature of at least 96 ma-%, and a solubility in THF at ambient temperature of at least 67 ma-%, wherein one or multiple silanes are grafted onto the polymer. The invention further relates to a method for the production of the polyolefins, and to the use thereof, particularly in or as an adhesive.
    Type: Grant
    Filed: July 2, 2009
    Date of Patent: March 19, 2013
    Assignee: Evonik Degussa GmbH
    Inventors: Hinnerk Gordon Becker, Hans Guenther Wey
  • Patent number: 8393626
    Abstract: The present invention generally relates to the use of EPDM (ethylene-propylene diene monomer) polymer compounds used in place of NR (natural rubber), SBR (styrene butadiene rubber), polyisoprene and other polymers in energy absorption elastomeric systems. In one embodiment a method of continuously manufacturing an EPDM based compound cured via a peroxide based cure system and used in an energy absorption elastomeric system is disclosed. The method includes the steps of forming a continuous part from a compound based on ethylene-propylene diene terpolymer and then curing the part via a continuous process and optionally cutting the final part to the appropriate length. Various advantages are achieved via the use of peroxide cured EPDM as replacements for NR, SBR, polyisoprene and other polymers.
    Type: Grant
    Filed: October 13, 2009
    Date of Patent: March 12, 2013
    Assignee: Production Systems, Inc.
    Inventors: Frederick E. Pedersen, Eldon S. Eady
  • Publication number: 20130046064
    Abstract: A composition of a surface-treated-carbon-black and a functionalized polymer with functionalization along the polymer chain is disclosed, wherein the polymer represents a solution SBR including, but not limited to blends of the SBR (PBR4003) with BR, NR and EPDM, and the SBR polymer functionalization comprises polar, oxygen-containing functional groups, such that the compound exhibits reduced hysteresis and rolling resistance, improved wet traction with excellent abrasion resistance as would be used in passenger, truck and racing tires.
    Type: Application
    Filed: July 27, 2010
    Publication date: February 21, 2013
    Inventors: Charles Herd, Charles Edwards, John Curtis, Steve Crossley, Keith Cory Schomberg, Thomas Gross, Norbert Steinhauser, Heike Kloppenberg, David Hardy, Alex Lucassen
  • Patent number: 8362145
    Abstract: A composition comprising a blend of a polyolefin, polylactic acid, and a reactive modifier. A method of producing an oriented film comprising reactive extrusion compounding a mixture comprising polypropylene, polylactic acid, a reactive modifier to form a compatibilized polymeric blend, casting the compatibilized polymeric blend into a film, and orienting the film. A method of preparing a reactive modifier comprising contacting a polyolefin, a multifunctional acrylate comonomer, and an initiator under conditions suitable for the formation of an epoxy-functionalized polyolefin wherein the epoxy-functionalized polyolefin has a grafting yield of from 0.2 wt. % to 15 wt. %.
    Type: Grant
    Filed: December 8, 2011
    Date of Patent: January 29, 2013
    Assignee: Fina Technology, Inc.
    Inventors: Fengkui Li, Tim J. Coffy, Michel Daumerie
  • Publication number: 20130005883
    Abstract: Disclosed is a novel packing for a solar cell module laminator. An object is to solve the problem of durability involved in conventional packings and to stably manufacture a high-quality module over a long period of time. The packing is composed of an olefin based rubber crosslinked with an organic peroxide and allowed to have a Shore A hardness, a dimensional stability, and a compression set each falling within a certain range. The olefin based rubber is suitably an EPDM rubber and/or an EPM rubber and is made possible for achieving extrusion molding.
    Type: Application
    Filed: March 9, 2011
    Publication date: January 3, 2013
    Inventors: Hidenari Nakahama, Shuji Maeda, Hiroshi Nakano
  • Publication number: 20120157579
    Abstract: Nucleophilic substitution reactions of halogenated polymers and azoles are used to produce derivatives of polyolefins bear pendant azolium ionomers. These uncured ionomers are useful in adhesive, antimicrobial applications, as well as in polymer composites and polymer blends. Furthermore, these azolium ionomers' ion pairs can bear reactive functionality, which provides access to further reactions that were unavailable using previous technology. Advantageously, such reactive ionomer derivatives of polyolefins can be cured by free radical and moisture-curing chemistry that was unaccessible to the halogenated polymer parent material.
    Type: Application
    Filed: December 9, 2011
    Publication date: June 21, 2012
    Inventors: J. Scott Parent, Ralph A. Whitney
  • Patent number: 8178625
    Abstract: The instant disclosure is directed to a thermoplastic vulcanizate composition comprising a dynamically-cured rubber; from about 20 to about 300 parts by weight of a thermoplastic resin per 100 parts by weight rubber and from about 30 to about 250 parts by weight additional oil per 100 parts by weight rubber; wherein the rubber comprises a multimodal polymer composition cured with a curing agent, the multimodal polymer composition comprising 45 to 75 wt % of a first polymer fraction and 25 to 55 wt % of a second polymer fraction, each comprising ethylene, a C3-C10 alpha-olefin, and a non-conjugated diene, wherein the polymer fractions have been polymerized using a Ziegler-Natta catalyst system, wherein the first polymer fraction has a Mooney viscosity of greater than or equal to about 150 ML(1+4@125° C.), and the second polymer fraction has a Mooney viscosity of about 20 ML to about 120 ML; and about 10 phr to about 50 phr of an extender oil.
    Type: Grant
    Filed: August 1, 2006
    Date of Patent: May 15, 2012
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Maria D. Ellul, Periagaram S. Ravishankar, Jianya Cheng, Paul E. McDaniel
  • Patent number: 8129476
    Abstract: The present invention relates to modified comb copolymers comprising special structural units, which are produced by converting SMA resins and optionally special copolymers with an AB block copolymer structure with a mixture of at least one polyalkylene oxide monoamine and at least one amino alcohol, with a mixture of at least one polyalkylene oxide monoamine and at least one N,N-disubstituted diamine or a mixture of at least one polyalkylene oxide monoamine, at least one N,N-disubstituted diamine and at least one polymer selected from the group comprising monohydroxy-terminated polyalkylene oxides, monohydroxy-terminated polyesters and monohydroxy-terminated block copolymers comprising polyalkylene oxide and polyester blocks, and their monohydroxy-terminated side chains are converted to phosphoric acid ester groups or their N,N-disubstituted amino-terminated side chains are converted to quaternary ammonium salts, and their use as wetting and dispersing agents.
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: March 6, 2012
    Assignee: BYK-Chemie GmbH
    Inventors: Bernd Göbelt, Jürgen Omeis, René Nagelsdiek, Sabine Johann
  • Publication number: 20120046418
    Abstract: The present invention provides a production method of a crosslinkable polymer material which includes adding 2-(glycidyloxy)-1-naphthonitrile oxide or 2-[5-(ethoxycarbonyl)pentyloxy]-1-naphthonitrile oxide by an addition reaction to a polymer material having a multiple bond to which a nitrile oxide is added by an addition reaction so as to introduce a glycidyl group or an ethoxycarbonyl group into the polymer material.
    Type: Application
    Filed: February 21, 2011
    Publication date: February 23, 2012
    Applicants: TOKYO INSTITUTE OF TECHNOLOGY, TOYODA GOSEI CO., LTD
    Inventors: Akishige SEO, Hideyuki Imai, Naoki Iwase, Yusuke Katono, Toshikazu Takata, Yasuhito Koyama, Kaori Miura
  • Publication number: 20110224380
    Abstract: The present invention provides a crosslinker used for crosslinking a polymer material having, in the molecule thereof, a multiple bond reactable with a nitrile oxide, the crosslinker including a bifunctional nitrile oxide having an aromatic nitrile oxide derivative structure in which one hydrogen atom of an aromatic ring is substituted with a nitrile oxide group and all hydrogen atoms at an ortho-position of the nitrile oxide group are substituted with a substituent other than a nitrile oxide group, wherein two such aromatic nitrile oxide derivative structures are bonded to either two oxy groups of a di-oxy structure having the two oxy groups or two carbonyl groups of a di-carbonyl structure having the two carbonyl groups.
    Type: Application
    Filed: February 18, 2011
    Publication date: September 15, 2011
    Applicants: TOYODA GOSEI CO., LTD., TOKYO INSTITUTE OF TECHNOLOGY
    Inventors: Akishige SEO, Hideyuki IMAI, Naoki IWASE, Toshikazu TAKATA, Yasuhito KOYAMA, Morio YONEKAWA
  • Patent number: 8017694
    Abstract: Nonconjugated conductive polymers, which are all polymers that have a ratio of double bonds to total bonds of less than ½ are doped with iodine to produce compositions with unexpected characteristics in this invention. The mechanical and elastomeric properties of a nonconjugated polymer can be enhanced by doping the polymer with an electron acceptor such as iodine, in order to cure the polymer. Among the nonconjugated polymers are the cis-1,4-polyisoprene, cis-1,4 polybutadiene, styrene-butadiene copolymers (SBR), ethylene-propylene-diene monomer and poly (?-pinene). A heated mixture of iodine and sulfur produces a faster rate of vulcanization of rubber than using sulfur alone.
    Type: Grant
    Filed: October 2, 2008
    Date of Patent: September 13, 2011
    Inventor: Mrinal Thakur
  • Patent number: 8013073
    Abstract: Disclosed is a method for preparing polyolefins containing vinylidine end groups from quasiliving carbocationically terminated polyolefin polymers by contacting the quasiliving carbocationically terminated polymer with a suitable nonaromatic heterocyclic ring quenching agent and substituted derivatives thereof.
    Type: Grant
    Filed: February 16, 2006
    Date of Patent: September 6, 2011
    Assignees: Chevron Oronite Company LLC, The University of Southern Mississippi
    Inventors: Casey D. Stokes, Robson F. Storey
  • Patent number: 8013093
    Abstract: The present invention is directed generally to the use of propylene-based elastomers in articles. The propylene-based elastomers have isotactic polypropylene crystallinity, a melting point by DSC of 110° C. or less, a heat of fusion of from 5 to 50 J/g, and comprise at least 75 wt % propylene-derived units, at least 6 wt % ethylene-derived units, and optionally diene-derived units. The present invention is also directed to processes for making articles comprising propylene-based elastomers.
    Type: Grant
    Filed: November 12, 2004
    Date of Patent: September 6, 2011
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Sudhin Datta, Chia Yung Cheng, Srivatsan Srinivas, Abdelhadi Sahnoune
  • Patent number: 7959530
    Abstract: The invention relates to an elastomeric product which contains a radical cross-linked rubber mixture, especially drive belts. For the production of elastomeric products, especially drive belts, having a long service life and producible in an environmentally friendly way, the rubber mixture contains (a) 0.1 to 50 phr of at least one carboxylic acid, which is at least ?,? unsaturated and ?,? unsaturated and preferably has at least one allylic hydrogen atom; and, (b) 0.1 to 50 phr of at least one salt-former as co-activator.
    Type: Grant
    Filed: July 14, 2006
    Date of Patent: June 14, 2011
    Assignee: ContiTech Antriebssysteme GmbH
    Inventors: Karl-Friedrich Grüssel, Reinhard Teves, Michael Well
  • Publication number: 20110003095
    Abstract: Modified polyolefins with syndiotactic structural elements and a processes for preparation thereof are provided. The modified polyolefins are useful as an adhesive or as a constituent of adhesives.
    Type: Application
    Filed: July 6, 2010
    Publication date: January 6, 2011
    Applicant: EVONIK DEGUSSA GmbH
    Inventors: Hinnerk Gordon Becker, Lutz Mindach, Holger Kautz, Miriam Ammer
  • Publication number: 20110003094
    Abstract: Modified polyolefins with isotactic structural elements and processes for preparation thereof are provided. The modified poyolefins are useful as an adhesive or as a constituent of an adhesive.
    Type: Application
    Filed: July 6, 2010
    Publication date: January 6, 2011
    Applicant: EVONIK DEGUSSA GmbH
    Inventors: Hinnerk Gordon BECKER, Lutz Mindach, Holger Kautz, Miriam Ammer
  • Patent number: 7838601
    Abstract: Partially neutralized chlorosulfonated polyolefin elastomers containing 0.5-10 weight percent chlorine and 0.25 to 5 weight percent sulfur are prepared from polyolefin elastomer base resins selected from the group consisting of propylene/ethylene copolymers, ethylene/propylene/diene copolymers, isobutylene/diene copolymers, isobutylene homopolymers, hydrogenated styrene/butadiene block copolymers and hydrogenated styrene/isoprene block copolymers.
    Type: Grant
    Filed: March 13, 2008
    Date of Patent: November 23, 2010
    Assignee: DuPont Performance Elastomers L.L.C.
    Inventors: Royce Elton Ennis, Avinash C. Gadkari, Furman Eugene Glenn
  • Patent number: 7799873
    Abstract: A thermoplastic elastomer composition containing (i) a thermoplastic resin, (ii) an elastomer component discontinuously dispersed in the thermoplastic resin and (iii) a molecular chain extender, wherein the dispersed state of the particles of the elastomer component dispersed in the matrix of the thermoplastic elastomer composition is stabilized.
    Type: Grant
    Filed: May 2, 2006
    Date of Patent: September 21, 2010
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventor: Yoshihiro Soeda
  • Patent number: 7723441
    Abstract: Disclosed is polymer materials essentially free of silicone capable of room-temperature thermal cure and when cured having low modulus, low out-gassing rate. The material before cure typically comprises three components: (i) a cationically curable component comprising the backbone of a hydrocarbon-based rubber material essentially free of carbon-carbon double bonds and triple bonds; (ii) a hydroxyl-containing component having at least two hydroxyl groups per molecule; (iii) an initiator component having essentially no volatility at room temperature and also yield products after polymerization that have minimal or no volatility at room temperature; (iv) an optional viscosity adjustment component either homopolymerizable or capable of copolymerizing with the photo or electron beam curable material component of (i); and (v) an optional non-alkaline inert filler. Also disclosed are process for making such cured material and devices comprising such cured polymer materials.
    Type: Grant
    Filed: December 18, 2006
    Date of Patent: May 25, 2010
    Assignee: Corning Incorporated
    Inventor: Paul John Shustack
  • Patent number: 7695386
    Abstract: A fabric or cord is treated with an elastomeric compound comprises 20-80 parts per hundred cross-linkable materials of liquid elastomer. The liquid elastomer has a complex dynamic viscosity less than 5 McP (5,000 N*s/m2) at a temperature between 20° C. and the maximum flow temperature TF, and the elastomeric compound the elastomeric material, prior to cure, has a complex dynamic viscosity of less than 5 McP (5,000 N*s/m2) for at least 2 minutes at a maximum flow temperature TF. The coated fabric and cord materials are useful as facing fabrics for power transmission products.
    Type: Grant
    Filed: June 16, 2005
    Date of Patent: April 13, 2010
    Assignee: Veyance Technologies, Inc.
    Inventors: Douglas Bruce Wood, Thomas George Burrowes
  • Patent number: 7683136
    Abstract: An elastomeric compound comprises 20-80 parts per hundred cross-linkable materials of liquid elastomer. The liquid elastomer has a complex dynamic viscosity less than 5 McP (5,000 N*s/m2) at a temperature between 20° C. and the maximum flow temperature TF, and the elastomeric compound the elastomeric material has a complex dynamic viscosity of less than 5 McP (5,000 N*s/m2) for at least 2 minutes at a maximum flow temperature TF.
    Type: Grant
    Filed: June 16, 2005
    Date of Patent: March 23, 2010
    Assignee: VeyanceTechnologies, Inc.
    Inventors: Douglas Bruce Wood, Thomas George Burrowes
  • Patent number: 7652105
    Abstract: A hydroxyl-modified ethylene-?-olefin copolymer with excellent coating properties and adhesion properties are produced by heating a mixture containing 100 parts by weight of an ethylene-?-olefin copolymer and 0.1 to 20 parts by weight of a peroxide having a hydroperoxy group. The heating temperature is adjusted within a range from the 10-hour half-life temperature to the 1-minute half-life temperature of the peroxide.
    Type: Grant
    Filed: December 25, 2003
    Date of Patent: January 26, 2010
    Assignee: NOF Corporation
    Inventors: Yasumasa Watanabe, Tomoyuki Nakamura, Hiroshi Okada
  • Publication number: 20100010155
    Abstract: A method for producing an olefinic thermoplastic elastomer comprising the steps of kneading an olefin copolymer rubber (A) obtained by polymerizing ethylene, an ?-olefin having 3 to 20 carbon atoms and a non-conjugated polyene, a volatile organic solvent (B) and, an olefin resin (C) in an extruder, removing the volatile organic solvent (B) while kneading, then adding a crosslinking agent (E) and further removing the volatile organic solvent (B) while kneading in the extruder to obtain the olefinic thermoplastic elastomer.
    Type: Application
    Filed: December 19, 2007
    Publication date: January 14, 2010
    Applicant: SUMITOMO CHEMICAL COMPANY , LIMITED
    Inventors: Kazuyoshi Fuse, Hironobu Shigematsu, Takeshi Tominaga
  • Patent number: 7612148
    Abstract: A method for hydrogenation of a conjugated diene polymer is provided. The conjugated diene polymer in an inert organic solvent is brought into contact with hydrogen in the presence of a hydrogenation catalyst composition to selectively hydrogenate the unsaturated double bonds in the conjugated diene units of the conjugated diene polymer. The hydrogenation catalyst composition includes: (a) a titanium compound; (b) a compound represented by formula (II) or formula (III): wherein R is C1-C12 alkyl, C3-C12 cycloalkyl, aryl or alkyl aryl, M is C1-C12 alkyl, C1-C12 alkoxy, aryl, alkyl aryl, phenoxy or hydroxyl, and n=1˜3; and (c) a alkylaluminum compound.
    Type: Grant
    Filed: December 19, 2007
    Date of Patent: November 3, 2009
    Assignee: TSRC Corporation
    Inventors: Chin-Kuang Tsai, Chien-Cheng Chen, Jung-Sheng Pan
  • Patent number: 7605217
    Abstract: The present invention provides a crosslinked propylene-based elastomer having an isotactic propylene triad tacticity of from 65 to 95%, a melting point by DSC equal to or less than 110° C., a heat of fusion of from 5 J/g to 50 J/g, an ultimate tensile strength of 1 MPa or greater, a Die C tear strength of 50 lb/in or greater, and a ratio of Shore A hardness to MFR@230° C. prior to crosslinking of 160 or less, and comprising at least 75 wt % propylene-derived units, at least 5 wt % ethylene-derived units, and from 0.3 to 10 wt % diene-derived units. The present invention also provides elastomeric compositions comprising a crosslinked propylene-based elastomer as described herein and from 0 to 5 parts by weight of carbon black per 100 parts of polymer. The present invention also provides articles such as films, fibers, nonwovens, molded objects, and extruded forms which include any of the inventive compositions described herein.
    Type: Grant
    Filed: November 12, 2004
    Date of Patent: October 20, 2009
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Sudhin Datta, Abdelhadi Sahnoune
  • Patent number: 7579411
    Abstract: The invention relates to hydroxylamine esters and polymerizable compositions comprising these hydroxylamine esters and an ethylenically unsaturated monomer or oligomer and methods for achieving a controlled increase in the molecular weight of polyethylene.
    Type: Grant
    Filed: February 12, 2008
    Date of Patent: August 25, 2009
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Michael Roth, Rudolf Pfaendner, Peter Nesvadba, Marie-Odile Zink
  • Publication number: 20090209672
    Abstract: The present invention provides a copolymer rubber which contains only small amounts of impurities and is excellent in kneading processability, extrusion processability and retention of shape and a rubber composition containing the copolymer rubber, and further provides a rubber molded product which is obtained from the rubber composition, is excellent in surface appearance, strength properties, heat aging resistance and weathering resistance and has a low compression set. The copolymer rubber of the present invention comprises structural units derived from [A]ethylene, [B] an ?-olefin of 3 to 20 carbon atoms, [C] a non-conjugated polyene having one double bond between adjacent carbon atoms in one molecule, said double bond being capable of polymerization by a metallocene catalyst, and [D] a non-conjugated polyene having two of the above double bonds in one molecule, and the copolymer rubber satisfies specific requirements (1) to (5).
    Type: Application
    Filed: December 4, 2008
    Publication date: August 20, 2009
    Inventors: Hiroki Ebata, Kotaro Ichino, Masao Kunizane
  • Publication number: 20090020731
    Abstract: Nonconjugated conductive polymers, which are all polymers that have a ratio of double bonds to total bonds of less than ½ are doped with iodine to produce compositions with unexpected characteristics in this invention. The mechanical and elastomeric properties of a nonconjugated polymer can be enhanced by doping the polymer with an electron acceptor such as iodine, in order to cure the polymer. Among the nonconjugated polymers are the cis-1,4-polyisoprene, cis-1,4 polybutadiene, styrene-butadiene copolymers (SBR), ethylene-propylene-diene monomer and poly (?-pinene). A heated mixture of iodine and sulfur produces a faster rate of vulcanization of rubber than using sulfur alone.
    Type: Application
    Filed: October 2, 2008
    Publication date: January 22, 2009
    Inventor: Mrinal Thakur
  • Publication number: 20080221274
    Abstract: The invention relates to elastomeric structures comprising first and second members, each of a different elastomeric material, in which the first member includes a modifier. The shaped structure may be, for example, an automotive weatherseal.
    Type: Application
    Filed: May 24, 2006
    Publication date: September 11, 2008
    Inventor: Eric Jourdain