Specified Blending Process Patents (Class 525/197)
  • Patent number: 10377889
    Abstract: A thermoplastic elastomer composition obtained by dynamically crosslinking an ethylene/?-olefin/non-conjugated polymer copolymer (A), a polyolefin resin (B), a softener (C) in an amount of 1 to 200 parts by mass per 100 parts by mass of the total of the copolymer (A) and the resin (B), and a crosslinking agent (D) by the use of a batch mixer under the conditions satisfying the requirements (1) to (4).
    Type: Grant
    Filed: March 23, 2016
    Date of Patent: August 13, 2019
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Hayato Kurita, Kazuyoshi Kaneko, Masahiro Enna, Tatsuya Enomoto, Hideki Mochizuki
  • Patent number: 10294362
    Abstract: The present invention aims to provide a resin composition capable of providing a molded article which is excellent in flexibility, acid resistance, and electrical properties. The resin composition of the present invention includes: an aromatic polyether ketone resin (I); and a fluororesin (II), the fluororesin (II) being a copolymer of tetrafluoroethylene and a perfluoroethylenic unsaturated compound represented by the following formula (1): CF2?CF—Rf1 (1) wherein Rf1 represents —CF3 or —ORf2, and Rf2 represents a C1-C5 perfluoroalkyl group, the fluororesin (II) being dispersed as particles in the aromatic polyether ketone resin (I), the resin composition satisfying a ratio (I):(II) by mass between the aromatic polyether ketone resin (I) and the fluororesin (II) of 50:50 to 10:90.
    Type: Grant
    Filed: July 23, 2013
    Date of Patent: May 21, 2019
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Yuki Ueda, Masami Nishiumi, Haruhisa Masuda
  • Patent number: 9862815
    Abstract: The present invention provides a rubber composition that comprises a rubber component containing a polybutadiene and a dienic rubber or an olefinic rubber immiscible with the polybutadiene, and a filler, in which the Mooney viscosity (ML1+4/100° C.) of the polybutadiene referred to as ML(I), and the Mooney viscosity (ML1+4/100° C.) of the dienic rubber or the olefinic rubber immiscible with the polybutadiene referred to as ML(II) are in a relation of ML(I)?ML(II), a method for producing the rubber composition and a tire using the rubber composition. The rubber composition is excellent in fracture resistance and capable of attaining good workability not lowering the durability such as abrasion resistance and the like of tires, and can reduce the rolling resistance of tires.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: January 9, 2018
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Junko Matsushita
  • Patent number: 9663638
    Abstract: An object of the present invention is to provide an acrylonitrile-butadiene rubber composition that can provide an acrylonitrile-butadiene rubber molded article having excellent properties of non-stickiness, oil resistance, heat resistance, and low-friction properties. The acrylonitrile-butadiene rubber composition of the present invention includes: an acrylonitrile-butadiene rubber (A); and a fluororesin (B), the fluororesin (B) being a perhalopolymer, the composition formed from a co-coagulated composition obtainable by co-coagulating the acrylonitrile-butadiene rubber (A) and the fluororesin (B).
    Type: Grant
    Filed: February 28, 2014
    Date of Patent: May 30, 2017
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Tomihiko Yanagiguchi, Haruhisa Masuda
  • Patent number: 9290624
    Abstract: Disclosed herein is a process for the manufacture of a fluoroelastomer composition containing fluoropolymer fibrils. The process comprises applying shear to a fluoroelastomer gum in a mixer while adding a liquid dispersion of fibrillatable fluoropolymer.
    Type: Grant
    Filed: August 27, 2014
    Date of Patent: March 22, 2016
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Christopher J Bish, Kostantinos Kourtakis
  • Patent number: 8981006
    Abstract: The present invention is a method for manufacturing a rubber composition containing a rubber component, a resin, a reinforcing filler and a crosslinking agent, and the method contains: a first step of adding the resin to the rubber component to produce a master batch; a second step of kneading the master batch with the reinforcing filler to produce a filled master batch; and a third step of kneading the filled master batch with the crosslinking agent, thereby providing a rubber composition having higher elasticity and large breaking elongation.
    Type: Grant
    Filed: August 19, 2011
    Date of Patent: March 17, 2015
    Assignee: Bridgestone Corporation
    Inventors: Reiko Yagi, Kumi Fujiki
  • 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: 8920891
    Abstract: A polymer composition comprises a low-molecular-weight (LMW) ethylene polymer component and a high-molecular-weight (HMW) ethylene polymer component coupled with a polysulfonyl azide. Preferably, the LMW polyethylene component and the HMW polyethylene component co-crystallize in the composition such that it exhibits a single or substantially single peak in a lamella thickness distribution (LTD) curve. The ethylene polymer for the LMW and the HMW polyethylene components can be either homopolymer or ethylene copolymer. Preferably, both components are an ethylene copolymer of the same, or different, composition (that is, with the same or different comonomers). A method of making a pipe that includes selecting a polymer composition having a substantially single peak in the LTD curve is described. Compositions comprising a chromium-catalyzed ethylene polymer, coupled with a polysulfonyl azide are also described herein.
    Type: Grant
    Filed: December 9, 2005
    Date of Patent: December 30, 2014
    Assignee: Dow Global Technologies LLC
    Inventors: William J. Michie, Jr., Dane Chang, Anthony C. Neubauer, Mridula Kapur, Todd A. Hogan, Felipe B. Martinez, Stephane Costeux
  • Patent number: 8889792
    Abstract: Propylene copolymer composition (P) comprising (a) a propylene copolymer (A) having a comonomer content of at least 1.0 wt.-%, the comomers are C5 to C12 a-olefins, and (b) a propylene copolymer (B) having a comonomer content of 4.0 to 20.0 wt.-%, the comomers are C5 to C12 a-olefins, wherein further (i) the comonomer content in the propylene copolymer (A) is lower compared to the comonomer content in the propylene copolymer (B), (ii) the propylene copolymer composition (P) has a comonomer content of 2.0 to 10.0 wt.-%, the comomers are C5 to C12 a-olefins, (iii) the weight ratio of the propylene copolymer (A) to the propylene copolymer (B) is the range of 30/70 to 80/20.
    Type: Grant
    Filed: April 18, 2011
    Date of Patent: November 18, 2014
    Assignee: Borealis AG
    Inventors: Juha Paavilainen, Petar Doshev, Kristin Reichelt
  • Patent number: 8871868
    Abstract: Propylene impact copolymers (ICPs) are provided which comprise: (a) a matrix phase which comprises from 60 to 95 weight % of a polypropylene polymer containing from 0 to 6 mole % of units derived from one or more alpha-olefins other than propylene, and (b) a dispersed phase which comprises from 5 to 40 weight % of a copolymer derived from a first comonomer which can be either propylene or ethylene together with a second alpha-olefin comonomer. The ICP is further characterized by having a beta/alpha ratio less than or equal to 1.1. The ICPs of the present invention are particularly well suited for applications requiring clear, tough polymers such as thin walled injection molded articles for frozen food packaging applications.
    Type: Grant
    Filed: January 9, 2013
    Date of Patent: October 28, 2014
    Assignee: Braskem America, Inc.
    Inventors: Peter S. Dias, Jonathan D. Kersey, Peter S. Martin, Thomas R. Cuthbert
  • 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
  • Patent number: 8853327
    Abstract: A process for preparing a blend of thermoplastic polymer and resin modifier within a single-screw extruder, wherein the resin modifier is a hydrocarbon resin.
    Type: Grant
    Filed: August 19, 2011
    Date of Patent: October 7, 2014
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Jay K. Keung, Yann Devorest, Chia Y. Cheng
  • Patent number: 8846812
    Abstract: Disclosed herein is a process for the manufacture of a fluoroelastomer composition containing fluoropolymer fibrils. The process comprises applying shear to a fluoroelastomer gum in a mixer while adding a liquid dispersion of fibrillatable fluoropolymer.
    Type: Grant
    Filed: November 14, 2012
    Date of Patent: September 30, 2014
    Assignee: E I du Pont de Nemours and Company
    Inventors: Christopher J Bish, Kostantinos Kourtakis
  • Patent number: 8816009
    Abstract: The present invention is directed to a method of making a functionalized elastomer, comprising the steps of polymerizing at least one diene monomer and optionally a vinyl aromatic monomer in the presence of an initiator of formula (II) to produce a protected hydroxyl end-terminated polymer where R1, R2, R3 can all be the same or different and are selected from the group consisting of alkyls having from 1 to 8 carbon atoms, cycloalkyls having from 3 to 11 carbon atoms, or aryls having from 6 to 14 carbon atoms, R4 is an alkylene having from 1 to 8 carbon atoms, a cycloalkylene having from 3 to 11 carbon atoms, or an arylene having from 6 to 14 carbon atoms, X is S, O or NH, and Li is lithium; de-protecting the protected hydroxyl end-terminated elastomer to produce a hydroxyl end-functionalized polymer; reacting the hydroxyl end-funtionalized polymer with a maleimido acid chloride to produce a maleimido end-functionalized polymer; and reacting the maleimido end-functionalized polymer with a thiol-terminated
    Type: Grant
    Filed: May 15, 2013
    Date of Patent: August 26, 2014
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Arindam Mazumdar, Frank James Feher
  • Patent number: 8742019
    Abstract: Crosslinked polyolefin blends, methods for their production, and articles made of the same are provided. In at least one specific embodiment, the polyolefin blends comprise a first polymer formed in a first reactor and a second polymer formed in a second reactor. The first and second polymers, as well as the resulting blend, may comprise units derived from propylene, ethylene, and a diene. The blended composition can then be compounded with one or more coagents, antioxidants, and/or other additives and crosslinked, preferably by exposure to energetic photons. The crosslinked polymers are particularly useful for making fibers, films, and nonwovens.
    Type: Grant
    Filed: September 24, 2010
    Date of Patent: June 3, 2014
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Sunny Jacob, Alistair D. Westwood, Justin R. Huber
  • Patent number: 8742020
    Abstract: The instant invention is an impact modifier composition and method of producing the same. The impact modifier composition comprises (a) less than 30 percent by weight of high-density polyethylene, based on the weight of the impact modifier composition; and (b) at least 70 percent by weight of chlorinated polyethylene, based on the weight of the impact modifier composition.
    Type: Grant
    Filed: September 5, 2012
    Date of Patent: June 3, 2014
    Assignee: Dow Global Technologies LLC
    Inventors: Charles M. Vanek, Mark T. Berard, Edward M. Bridge
  • Patent number: 8729186
    Abstract: A high pressure polymerization process to form an ethylene-based polymer comprises the steps of: A. Injecting a first feed comprising ethylene and optionally a chain transfer agent system (CTA system) into a first autoclave reactor zone operating at polymerization conditions to produce a first zone reaction product, the CTA system of the first reactor zone having a transfer activity Z1; and B. (1) Transferring at least part of the first zone reaction product to a second reactor zone selected from a second autoclave reactor zone or a tubular reactor zone and operating at polymerization conditions, and, optionally, (2) freshly injecting a second feed into the second reactor zone to produce a second zone reaction product, with the proviso that the second reactor zone contains a CTA system having a transfer activity Z2; and with the proviso that the ratio of Z1/Z2 is less than 1.
    Type: Grant
    Filed: December 14, 2010
    Date of Patent: May 20, 2014
    Assignee: Dow Global Technologies LLC
    Inventors: Otto J. Berbee, Cornelis Den Doelder, Egbert Nijhof, Mehmet Demirors, Sjoerd A. De Vries
  • Patent number: 8697808
    Abstract: A high-temperature solution process for making an ethylene polymer blend having a controlled degree of long-chain branching is disclosed. Ethylene is polymerized in the presence of a first Ziegler-Natta catalyst comprising titanium, magnesium, and aluminum in the absence of hydrogen to produce a first ethylene polymer component having substantial long-chain branching. A second ethylene polymer component having little or no long-chain branching is also prepared. Both polymerizations are performed at a temperature from 140° C. to 250° C. The first and second ethylene polymer components are combined to give a polymer blend. The degree of long-chain branching in the blend is controlled by adjusting the relative amounts of the first and second ethylene polymer components. The invention enables the preparation of valuable products having a pre-determined degree of long-chain branching using readily available Zeigler-Natta catalysts, commercially practiced techniques, and conventional equipment.
    Type: Grant
    Filed: November 8, 2010
    Date of Patent: April 15, 2014
    Assignee: Equistar Chemicals, LP
    Inventors: Michael W. Lynch, Kenneth J. Klug
  • Patent number: 8691354
    Abstract: This invention is related to the preparation of polyethylene pipe resins suitable for transporting hot and cold water containing chlorine dioxide.
    Type: Grant
    Filed: April 26, 2013
    Date of Patent: April 8, 2014
    Assignee: Total Research & Technology Feluy
    Inventors: Pierre Belloir, Christine Bertrand
  • Patent number: 8664336
    Abstract: A method for forming a fiber, the method comprising charging to a reactive extruder a first polymer and a second polymer to form an initial blend, where the first polymer is a propylene-based elastomer including up to 35% by weight ethylene-derived units and a heat of fusion, as determined according to DSC procedures according to ASTM E-793, of less than 80 J/g and a melt temperature of less than 110° C., where the second polymer is a propylene-based polymer having a melt temperature in excess of 110° C. and a heat of fusion in excess of 80 J/g, and introducing the reactive blend to a spinneret to form a fiber or extruding the reacted blend through a plurality of die capillaries to form molten threads or filaments which are attenuated in a gas stream to form meltblown fibers.
    Type: Grant
    Filed: October 22, 2012
    Date of Patent: March 4, 2014
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Vetkav R. Eswaran, Bruce A. Harrington, Robert F. Bahm, Smita Kacker, Paul E. Rollin, Jr.
  • Patent number: 8653194
    Abstract: Processes and compounds are described herein for single polymer composites based on a process for making the single polymer composites that includes the steps of heating a matrix material to create polymer melt, cooling the polymer melt to below its Tm to create an undercooled polymer melt, or quasi-melt, and combining the melt with an enhancing or reinforcing material to produce a single polymer composite. The process can produce materials that do not have any degradation of the polymer characteristic of the enhancing material due to melting of the polymer in the enhancing material.
    Type: Grant
    Filed: May 3, 2012
    Date of Patent: February 18, 2014
    Assignee: Georgia Tech Research Corporation
    Inventors: Donggang Yao, Youjiang Wang, Pan Dai, Jinnan Chen
  • Patent number: 8575272
    Abstract: A polymer composition comprising (percent by weight): a) 57%-74%, of a crystalline propylene polymer having an amount of isotactic pentads (mmmm), measured by 13C-MNR on the fraction insoluble in xylene at 25° C., higher than 97.5 molar % and a polydispersity index ranging from 5 to 10; b) 8 to 15%, of an elastomeric copolymer of ethylene and propylene, the copolymer having an amount of recurring units deriving from ethylene ranging from 30 to 50%, and being partially soluble in xylene at ambient temperature; the polymer fraction soluble in xylene at ambient temperature having an intrinsic viscosity value ranging from 2.5 to 3.5 dl/g; and c) 18-28%, of ethylene homopolymer having an intrinsic viscosity value ranging from 1.5 to 4 dl/g; said composition having a value of melt flow rate ranging from 35 to 60 g/10 min, and the amount of hexane extractables lower than 4.0 wt %.
    Type: Grant
    Filed: July 20, 2010
    Date of Patent: November 5, 2013
    Assignee: Basell Poliolefine Italia S.r.l.
    Inventors: Marco Ciarafoni, Paola Massari, Gisella Biondini, Roberto Pantaleoni
  • Patent number: 8552113
    Abstract: A rubber material of a wiper blade for windshield wipers is described, which comprises a first rubber component of a first polarity and a second rubber component of a second greater polarity. To equalize the first and second polarities, the first rubber component is at least partially replaced by a chemically functionalized derivative.
    Type: Grant
    Filed: September 29, 2008
    Date of Patent: October 8, 2013
    Assignee: Robert Bosch GmbH
    Inventors: Eric Pieters, Reiner Lay, Hilde Parton
  • Patent number: 8546491
    Abstract: The present invention provides a polyolefin-based composite resin spherical particle that gives a coating film having a matte appearance, a soft feeling, and excellent scratch resistance by being used for a coating material. The present invention also provides a coating composition containing the polyolefin-based composite resin spherical particle and a coating resin, and a coated article obtained by applying the coating composition to a substrate. The invention relates to a polyolefin-based composite resin spherical particle, which is a spherical particle obtained by mixing 100 parts by mass of a polyolefin-based resin, 40 to 1,500 parts by mass of water, and 3 to 30 parts by mass of an ethylene oxide/propylene oxide copolymer having a weight average molecular weight of 4,000 to 30,000 to prepare a mixture, emulsifying the mixture at a temperature of the highest melting point of the polyolefin-based resin or higher, and cooling the mixture from a temperature at least 25° C.
    Type: Grant
    Filed: September 2, 2010
    Date of Patent: October 1, 2013
    Assignee: Sumitomo Seika Chemicals Co., Ltd.
    Inventors: Yuhei Funabiki, Toshiaki Fujiwara, Hirofumi Fujita
  • Patent number: 8513360
    Abstract: Modular plastic structural composites having a web section disposed along a horizontal axis and at least one flange section disposed along a horizontal axis parallel thereto and integrally molded to engage the top or bottom surface of the web section, wherein said composite is formed from a mixture of (A) high density polyolefin and (B) a thermoplastic-coated fiber material, poly-styrene, or a combination thereof. Composites molded in the form of I-Beams and bridges constructed therefrom are also disclosed.
    Type: Grant
    Filed: July 8, 2011
    Date of Patent: August 20, 2013
    Assignee: Rutgers, The State University of New Jersey
    Inventors: Thomas Nosker, James Kerstein, Louis Simon, Maryann Renfree
  • Patent number: 8507599
    Abstract: Golf balls containing a core having at least one layer and cover having at least one layer are provided. A thermoplastic ionomeric composition is used to form at least one layer of the ball. The composition is prepared by providing a masterbatch comprising cycloalkene (polyalkenamer) rubber and neutralizing agent and mixing the masterbatch with ethylene acid copolymer. The acid groups are neutralized to 30 weight percent or greater, preferably 50% or greater, and more preferably 70% or greater. The resulting ball has high resiliency and rebounding properties along with a soft feel.
    Type: Grant
    Filed: December 20, 2010
    Date of Patent: August 13, 2013
    Assignee: Acushnet Company
    Inventors: Mark L. Binette, Brian Comeau, Douglas S. Goguen, Robert Blink, Michael J. Sullivan, David A. Bulpett
  • Patent number: 8455588
    Abstract: Modular plastic structural composites formed from a mixture of (A) high density polyolefin and one or both of: (B) a thermoplastic-coated fiber material, or (C) polystyrene, poly(methyl methacrylate), or a combination thereof. Composites molded in the form of I-Beams and bridges constructed therefrom are also disclosed.
    Type: Grant
    Filed: July 28, 2011
    Date of Patent: June 4, 2013
    Assignee: Rutgers, The State University of New Jersey
    Inventors: Jennifer Lynch, Thomas Nosker, Richard Lehman, James D. Idol, Kenneth Van Ness, Richard W. Renfree, Maryann Renfree
  • Publication number: 20130137794
    Abstract: The present invention relates to a process for manufacturing an adhesive by extrusion, wherein the adhesive comprises at least one degraded polypropylene(co)polymer and at least one additional additive.
    Type: Application
    Filed: January 25, 2013
    Publication date: May 30, 2013
    Applicant: HENKEL AG & CO. KGAA
    Inventor: HENKEL AG & CO. KGAA
  • Patent number: 8450421
    Abstract: Cable layer comprising a propylene polymer composition comprising (a) a polypropylene (A) (b) an elastomeric copolymer (E) comprising units derived from propylene and ethylene and/or C4 to C20 ?-olefin and (c) a polar ethylene polymer (C) wherein the cable layer and/or the propylene polymer composition has a gel content of equal or more than 0.20 wt.-%.
    Type: Grant
    Filed: December 17, 2009
    Date of Patent: May 28, 2013
    Assignee: Borealis AG
    Inventors: Tung Pham, Doris Machl, Sybille Simon, Katja Klimke, Christer Svanberg, Thomas Steffl, David Friel
  • Publication number: 20130099424
    Abstract: The present techniques provide an extruder screw comprising a high shear melting and mixing zone starting a distance away from an entry point of the screw corresponding to 35%-50% of the overall screw L/D. The extruder screw may also include elements capable of increasing a degree of fill of the high shear melting and mixing zone. In accordance with present techniques, the extruder screw is configured to blend two or more polyolefin polymers having greater than about a 200,000 difference in weight-average molecular weight in a single extrusion step. The extruder screw of the present techniques may be used in a single screw or twin screw extruder, and may be incorporated into a polyolefin production plant for producing multi-modal resins.
    Type: Application
    Filed: October 25, 2011
    Publication date: April 25, 2013
    Applicant: CHEVRON PHILLIPS CHEMICAL COMPANY LP
    Inventors: Vivek Rohatgi, Ashish M. Sukhadia
  • Patent number: 8404755
    Abstract: Polyester compositions described herein have properties which are particularly suitable for extrusion blow molding (EBM). These properties relate primarily to the rate of crystallization and melt strength or melt viscosity. Articles prepared from the polyester compositions exhibit good clarity, aesthetics, and other physical properties. The polyester compositions also exhibit broad molecular weight distribution (MWD), resulting in improved processability and melt strength. The crystallization rate allows for good drying characteristics while also enabling the use of regrind. In addition, the compositions exhibit improved recyclability, such as in existing PET recycling streams. In one aspect, articles are prepared in an extrusion blow molding method by combining a dry first polyester copolymer component, a dry second polyester component, and a chain extender to form a feed material suitable for extrusion blow molding.
    Type: Grant
    Filed: April 17, 2009
    Date of Patent: March 26, 2013
    Assignee: PepsiCo, Inc.
    Inventor: Clarence Sequeira
  • Patent number: 8389654
    Abstract: The present invention relates to a polymer composition, comprising (i) a polypropylene homopolymer, (ii) a polypropylene random copolymer, prepared by copolymerization of propylene with an olefin comonomer and having an amount of olefin comonomer units of 0.2 to 5 wt %, and (iii) an elastomeric copolymer of propylene and at least one olefin comonomer, the polymer composition having a tensile modulus, determined according to ISO 527-2/1B at 1 mm/min. and 23° C., of at least 1200 MPa.
    Type: Grant
    Filed: July 1, 2010
    Date of Patent: March 5, 2013
    Assignee: Borealis Technology Oy
    Inventors: Kauno Alastalo, Carl-Gustaf Ek, Bo Malm, Ulf Torgersen, Olli Tuominen
  • Publication number: 20130041109
    Abstract: To provide a process for producing an ethylene/tetrafluoroethylene copolymer composition which is excellent in mechanical properties of the molded product and which has good moldability. A process for producing a fluorinated copolymer composition, which comprises heating a mixture comprising ethylene/tetrafluoroethylene copolymers having extremely different viscosities and a solvent capable of dissolving the ethylene/tetrafluoroethylene copolymers at a temperature not higher than the melting points of the ethylene/tetrafluoroethylene copolymers, to at least a temperature where the ethylene/tetrafluoroethylene copolymers are dissolved in the solvent to obtain a solution state; and removing the solvent.
    Type: Application
    Filed: October 16, 2012
    Publication date: February 14, 2013
    Applicant: Asahi Glass Company, Limited
    Inventor: Asahi Glass Company, Limited
  • Publication number: 20130005908
    Abstract: This invention relates to in-reactor polymer blends comprising at least 60 mole % of propylene and from 0.01 to 10 mole % of at least one diene selected from the group of C6 to C12 ?,?-diene, norbornadiene, vinyl norbornene and mixtures thereof with the balance being ethylene. The blend comprises first and second polymers having different crystallinities and or different Tg's.
    Type: Application
    Filed: September 11, 2012
    Publication date: January 3, 2013
    Inventors: Kevin R. Squire, Charles J. Ruff, Cesar A. Garcia-Franco, Peijun Jiang
  • Patent number: 8338539
    Abstract: The present invention is a film obtained from a blend of chemically distinguishable copolymers, wherein the film has a light transmission of at least 85%, and/or a haze of less than 6%, and wherein the blend comprises a component copolymer has a secant modulus of less than 15,000 when cast independently into a film.
    Type: Grant
    Filed: April 21, 2008
    Date of Patent: December 25, 2012
    Assignee: E I du Pont de Nemours and Company
    Inventors: Richard J. Arhart, Geraldine M. Lenges
  • Patent number: 8283418
    Abstract: Polypropylene composition comprising a) an isotactic polypropylene (iPP) produced in the presence of a single-site catalyst and said isotactic polypropylene (iPP) has a mean isotactic block length between two structural chain defects, as a statistical average, greater than 70, and b) an atactic polypropylene (aPP) with an absorbance ratio of the absorption band at 998 cm?1 to the absorption band at 973 cm?1 [A998/A973] below 0.80 wherein the weight ratio of said atactic polypropylene to the sum of said atactic polypropylene and said isotactic polypropylene (aPP/(aPP+iPP)) is at least 0.50 wt.-%.
    Type: Grant
    Filed: January 18, 2008
    Date of Patent: October 9, 2012
    Assignee: Borealis Technology Oy
    Inventors: Werner Posch, Manfred Stadlbauer, Stefan Schiesser
  • Publication number: 20120248002
    Abstract: A polymer composition of polypropylene copolymer and 1 to 50% by weight of hard resin. The polypropylene copolymer is either an impact copolymer or a random copolymer. The polymer composition can be used to make injection stretch blow molded articles having improved top load strength.
    Type: Application
    Filed: March 30, 2011
    Publication date: October 4, 2012
    Applicant: Fina Technology, Inc.
    Inventors: Luyi Sun, Tim Coffy, Leland Daniels
  • Patent number: 8231974
    Abstract: A fluoropolymer molding method and the resulting molded article are disclosed where the fluoropolymer is composed of fluoropolymer particles each having a multi-layer structure that consists of at least two types of fluoropolymers having different melting points, with at least one inner layer made of a fluoropolymer with a melting point higher than that of the outermost fluoropolymer. The fluoropolymer of the at least one inner layer is molded at a temperature higher than the melting point of the lowest melting point of the fluoropolymers that form the outermost layers of the multi-layer-structure fluoropolymer particles, and lower than the melting point of the fluoropolymer having the highest melting point. The resulting articles have excellent chemical liquid resistance and gas impermeability and low linear expansion coefficient.
    Type: Grant
    Filed: March 15, 2012
    Date of Patent: July 31, 2012
    Assignee: Dupont Mitsui Fluorochemicals Co Ltd
    Inventor: Takao Nishio
  • Patent number: 8188188
    Abstract: A thermoplastic resin composition production method wherein melt-kneading is performed in a stretched flow when producing a thermoplastic resin composition as specified in the paragraph (I) or (II) below: (I) a thermoplastic resin composition comprising a Thermoplastic resin (A) and a Resin (B) with a reactive functional group; (II) a thermoplastic resin composition comprising a Thermoplastic resin (A), a Thermoplastic resin (C) that is different from the Thermoplastic resin (A), and a Compound (D) with a reactive functional group.
    Type: Grant
    Filed: March 25, 2009
    Date of Patent: May 29, 2012
    Assignee: Toray Industries, Inc.
    Inventors: Sadayuki Kobayashi, Hideo Matsuoka, Makiko Saito, Masaru Akita
  • Patent number: 8173746
    Abstract: A method for producing an olefinic thermoplastic elastomer comprising mixing 100 parts by weight of an olefin copolymer rubber (A) obtained by polymerizing ethylene, an ?-olefin having 3 to 20 carbon atoms and a non-conjugated polyene, and based on 100 parts by weight of the olefin copolymer rubber (A), 11 to 50 parts by weight of a volatile organic solvent (B) and 5 to 150 parts by weight of an olefin resin (C), and removing from the mixture the volatile organic solvent (B) while kneading in an extruder.
    Type: Grant
    Filed: December 19, 2007
    Date of Patent: May 8, 2012
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Kazuyoshi Fuse, Hironobu Shigematsu, Takeshi Tominaga
  • Patent number: 8158721
    Abstract: This invention relates to processes for the preparation of a dynamically vulcanized alloy comprising at least one isobutylene-containing elastomer and at least one thermoplastic resin. More specifically, the processes produce dynamically vulcanized alloys with unique morphological features which have good impermeability and low temperature flexibility.
    Type: Grant
    Filed: June 13, 2008
    Date of Patent: April 17, 2012
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: William G. Stevenson, Joseph M. DeLucia, Michael K. Lyon, Jianya Cheng
  • Patent number: 8158260
    Abstract: A fluoropolymer molding method and the resulting molded article are disclosed where the fluoropolymer is composed of fluoropolymer particles each having a multi-layer structure that consists of at least two types of fluoropolymers having different melting points, with at least one inner layer made of a fluoropolymer with a melting point higher than that of the outermost fluoropolymer. The fluoropolymer of the at least one inner layer is molded at a temperature higher than the melting point of the lowest melting point of the fluoropolymers that form the outermost layers of the multi-layer-structure fluoropolymer particles, and lower than the melting point of the fluoropolymer having the highest melting point. The resulting articles have excellent chemical liquid resistance and gas impermeability and low linear expansion coefficient.
    Type: Grant
    Filed: May 29, 2007
    Date of Patent: April 17, 2012
    Assignee: Dupont Mitsui Fluorochemicals Co Ltd
    Inventor: Takao Nishio
  • Patent number: 8143349
    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: Grant
    Filed: December 19, 2007
    Date of Patent: March 27, 2012
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Kazuyoshi Fuse, Hironobu Shigematsu, Takeshi Tominaga
  • Patent number: 8138269
    Abstract: Isotactic polypropylene ethylene-propylene copolymer blends and in-line processes for producing them. The blends may have between 1 and 50 wt % of isotactic polypropylene with a melt flow rate of between 0.5 and 20,000 g/10 min and a melting peak temperature of 145° C. or higher, and wherein the difference between the DSC peak melting and the peak crystallization temperatures is less than or equal to 0.5333 times the melting peak temperature minus 41.333° C., and between 50 and 99 wt % of ethylene-propylene copolymer including between 10 wt % and 20 wt % randomly distributed ethylene with a melt flow rate of between 0.5 and 20,000 g/10 min, wherein the copolymer is polymerized by a bulk homogeneous polymerization process, and wherein the total regio defects in the continuous propylene segments of the copolymer is between 40 and 150% greater than a copolymer of equivalent melt flow rate and wt % ethylene polymerized by a solution polymerization process.
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: March 20, 2012
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Gabor Kiss, Patrick Brant, Robert Patrick Reynolds, Jr., Aspy K. Mehta, Manika Varma-Nair, John W. Chu, Steven P. Rucker
  • Publication number: 20120010368
    Abstract: A melt-mixed composition of non-melt flowable polytetrafluoroethylene (PTFE) and melt-fabricable perfluoropolymer is provided that exhibits thixotropy at increasing shear rate in the molten state and high elongation at break even at PTFE concentrations well above 4 wt %, based on the combined weight of the PTFE and the perfluoropolymer, e.g. at least 200% up to at least 30 wt % PTFE, the composition also exhibiting the structure of a dispersion of submicrometer-size particles of the PTFE in a continuous phase of the melt-fabricable perfluoropolymer.
    Type: Application
    Filed: September 22, 2011
    Publication date: January 12, 2012
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Heidi Elizabeth Burch, Sundar Kilnagar Venkataraman, Ralph Munson Aten
  • Patent number: 8093336
    Abstract: A heterogeneous polymer blend comprises a dispersed phase comprising a thermoplastic first polymer having a crystallinity of at least 30% and a continuous phase comprising a second polymer different from the first polymer. The second polymer has a crystallinity of less than 20% and is at least partially cross-linked.
    Type: Grant
    Filed: April 20, 2011
    Date of Patent: January 10, 2012
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Sunny Jacob, Peijun Jiang, Aspy K. Mehta, Pradeep P. Shirodkar, Armenag H. Dekmezian, Weiqing Weng
  • Patent number: 8080191
    Abstract: A polymer blend has a base and blend components. The base and blend components could be a branched slow crystallizing PET and a faster crystallizing PET, respectively. The ratio of base and blend components result in a block copolymer, the melt processing time and branching or chain extender levels can be can be tailored to impart the polymer blend with sufficient melt strength and crystallization rates, such that it is slow enough during the blow molding process to produce a clear article and yet fast enough during the subsequent PET recycling process making it suitable for extrusion processes as well as for recycling. The combination of materials can be used to form monolayer or multilayer articles.
    Type: Grant
    Filed: October 19, 2007
    Date of Patent: December 20, 2011
    Assignee: PepsiCo, Inc.
    Inventors: Clarence Sequeira, Said Farha
  • Patent number: 8071680
    Abstract: A method for producing an elastomeric sealing article including preparing a thermoplastic elastomeric resin composition having (a) 100 parts by weight of a hydrogenated block copolymer including at least two polymeric blocks (A) of styrene, and at least one polymeric block (B) of isoprene; (b) 70 to 130 parts by weight of an ethylene-octene copolymer including ethylene in an amount of more than 50% by weight; and (c) 30 to 60 parts by weight of polypropylene. The thermoplastic elastomeric resin composition does not contain a non-aromatic softening agent, and none of components (a), (b), and (c) is cross-linked. The method also includes molding the thermoplastic elastomeric resin composition into an elastomeric sealing article.
    Type: Grant
    Filed: May 26, 2004
    Date of Patent: December 6, 2011
    Assignee: Riken Technos Corporation
    Inventors: Michihisa Tasaka, Akihiro Tamura
  • Publication number: 20110294956
    Abstract: A production process of a resin composition containing 100 parts by weight of a polyester fiber, 1 to 600 parts by weight of a copolymer of ethylene with a glycidyl group-carrying monomer, and 0.3 to 500 parts by weight of an unsaturated carboxylic acid-modified polyolefin resin, the process comprising steps of (1) melt-kneading the copolymer with the modified polyolefin resin, and (2) kneading the resultant melted resin with the polyester fiber at a temperature lower than a melting point of the polyester fiber.
    Type: Application
    Filed: April 15, 2011
    Publication date: December 1, 2011
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventor: Kenji WATANABE
  • Patent number: 8063148
    Abstract: The present invention relates to a polyolefin composition comprising an olefin homo- or copolymer (A) in an amount of 90 wt. % or more, and an olefin homo- or copolymer (B) comprising hydrolysable silicon-containing groups, wherein olefin homo- or copolymer (B) is present in the composition in an amount of from 0.01 to 2 wt. %.
    Type: Grant
    Filed: November 7, 2007
    Date of Patent: November 22, 2011
    Assignee: Borealis Technology Oy
    Inventors: Markus Gahleitner, Tung Pham, Johannes Wolfschwenger, Doris Machl