Utilizing Plural Mixing Operations In Preparation Of A Solid Polymer Inert Ingredient Concentrate, E.g., Master Batch, Etc. Patents (Class 523/351)
  • Patent number: 8741987
    Abstract: A polymer masterbatch in latex form having nanomaterials and a compatibilized silica for incorporation into natural and synthetic polymers in latex form using precipitated or fumed silica with at least two organosilicon coupling compounds attached to the silica in an aqueous suspension.
    Type: Grant
    Filed: August 24, 2012
    Date of Patent: June 3, 2014
    Assignee: Lion Copolymer Holdings, LLC
    Inventors: Lawrence Douglas Harris, Mark Arigo, Subir Debnath, Jorge Soto
  • Patent number: 8735468
    Abstract: A method for extrusion of polymer products is provided. The method includes preparing a base mixture in a turbomixer the base mixture containing polymer powders and at least an additive. The method also includes introducing the base mixture into at least an extruder, via a mixer into which an additional quantity of the additive and/or at least a further additive is introduced.
    Type: Grant
    Filed: May 7, 2008
    Date of Patent: May 27, 2014
    Assignee: Ariostea M.H.S. S.r.L.
    Inventor: Carlo Panciroli
  • Publication number: 20140142217
    Abstract: A method for lowering the dynamic-to-static modulus ratio of vulcanized rubber, the method comprising a first step of kneading a rubber component, a filler and a compound represented by formula (I) or a salt thereof, a second step of kneading the kneaded mixture obtained in the first step, a sulfur component and a vulcanization accelerator, and a third step of thermally treating the kneaded mixture obtained in the second step, in formula (I), n represents an integer of 0 to 10. The compound represented by formula (I) or a salt thereof is preferably S-(3-aminopropyl)thiosulfuric acid or a salt thereof.
    Type: Application
    Filed: July 25, 2012
    Publication date: May 22, 2014
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Yasuo Uekita, Hironobu Iyama
  • Patent number: 8722763
    Abstract: The present invention relates to a process for preparing a polymer composition by using a masterbatch, as well as a process, wherein said polymer composition is used for preparing an article, preferably a cable. Also a masterbatch, a polymer composition comprising the masterbatch, and an article, preferably a cable, comprising the polymer composition are provided.
    Type: Grant
    Filed: December 21, 2009
    Date of Patent: May 13, 2014
    Assignee: Borealis AG
    Inventors: Annika Smedberg, Philippe Ravera, Ulf Nilsson
  • Patent number: 8716366
    Abstract: The present invention relates to a process for preparing tri-filler incorporated natural rubber master batch. The fillers used in the present invention are carbon black, silica and nano-clay (modified montmorillonite clay, Cloisite 93 A). The process of preparing fillers incorporated master batch involves preparation of the individual filler dispersions by mixing each filler with surfactants. Further fresh rubber latex is soap sensitized by mixing it with surfactant. The filler dispersions are added to the soap sensitized rubber latex slowly under stirring to form the master mix. Then the master mix is coagulated by the addition of acid to form coagulum. The coagulum is dewatered and dried to obtain filler incorporated natural rubber master batch.
    Type: Grant
    Filed: July 25, 2012
    Date of Patent: May 6, 2014
    Inventors: Rosamma Alex, Kavumnadayil Krishnan Sasidharan, James Jacob
  • Patent number: 8710140
    Abstract: Process for manufacturing a self-sealing elastomer composition, wherein the process comprises the following steps: firstly a masterbatch comprising at least one diene elastomer and a thermoplastic plasticizing hydrocarbon resin with a content greater than 30 phr is manufactured by compounding these various components in a mixer at a temperature or up to a temperature called the “hot compounding temperature” which is above the softening point of the hydrocarbon resin; and then at least one crosslinking system is incorporated into the masterbatch thus prepared, by compounding everything, in the same mixer or in a different mixer, at a temperature or up to a maximum temperature which is kept below 100° C., in order to obtain said self-sealing composition, and wherein at least one liquid plasticizer having a glass transition temperature (Tg) below ?20° C. is furthermore incorporated in an amount of less than 60 phr into said masterbatch or into said composition.
    Type: Grant
    Filed: July 23, 2009
    Date of Patent: April 29, 2014
    Assignees: Michelin Recherche et Technique S.A., Compagnie Generale des Etablissements Michelin
    Inventors: Frederic Pialot, Damien Fombelle, Bozena Voge, Jose Merino Lopez
  • Publication number: 20140113993
    Abstract: The invention relates to the preparation of a rubber composition containing a pre-treated precipitated silica and a tire having a component comprised of such rubber composition. The pre-treated silica is a precipitated silica having been pre-treated with a silica coupling agent comprised of an alkoxyorganomercaptosilane to form a precipitated silica/coupling agent composite prior to its blending with a rubber composition. The rubber composition preparation involves reacting said pretreated silica/coupling agent composite with a combination of bis(3-triethoxysilylpropyl)polysulfides in situ within the rubber composition.
    Type: Application
    Filed: October 22, 2012
    Publication date: April 24, 2014
    Inventors: Giorgio Agostini, Marc Weydert, Elena Sperotto
  • Patent number: 8686086
    Abstract: A process for the preparation of a rubber composition for the manufacture of tires is presented. The composition is based on one or more diene elastomers, one or more reinforcing fillers, and a crosslinking system. The composition includes particles of one or more thermoplastic materials chosen from amorphous thermoplastic materials and semicrystalline thermoplastic materials, with the glass transition temperature of the amorphous thermoplastic material or materials and the melting point of the semicrystalline thermoplastic material or materials varying from 80° C. to 300° C. The particles exhibit a volume-average diameter of less than or equal to 200 ?m.
    Type: Grant
    Filed: May 24, 2011
    Date of Patent: April 1, 2014
    Assignees: Compagnie Generale des Etablissements Michelin, Michelin Recherche et Technique S.A.
    Inventors: Vincent Abad, Emmanuel Custodero, Damien Thomasson
  • Publication number: 20140083598
    Abstract: The present invention provides a process for making silica-filled rubber masterbatch using silica hydrophobated with a trimethoxy silane coupling agent that is soluble in an alcohol-water solution containing at least about 70 wt % water. One embodiment uses a mixture of trimethoxy silanes, one or more of which react with rubber to bond the silica to the rubber, and one or more of which do not react with rubber, but do hydrophobate the silica. Hydrophobated silica is mixed with latex polymer and incorporated into rubber during coagulation of the latex, which is preferably coagulated with calcium chloride. The present invention further provides a process for making the trimethoxy silane coupling agents. Preferred trimethoxy silane coupling agents include bis-(3-trimethoxysilylpropyl)-disulfide and bis-(3-trimethoxysilylpropyl)-tetrasulfide.
    Type: Application
    Filed: January 22, 2013
    Publication date: March 27, 2014
    Inventors: Peter J. Wallen, Christopher J. Hardiman, Howard A. Colvin, Gregory C. Bowman, Jose Eduardo Rojas Reyna
  • Patent number: 8669299
    Abstract: An antioxidant combined with UHMWPE prior to subjecting the UHMWPE to crosslinking irradiation. In one exemplary embodiment, the antioxidant is tocopherol. After the antioxidant is combined with the UHMWPE, the resulting blend may be formed into slabs, bar stock, and/or incorporated into a substrate, such as a metal, for example. The resulting product may then be subjected to crosslinking irradiation. In one exemplary embodiment, the UHMWPE blend is preheated prior to subjecting the same to crosslinking irradiation. Once irradiated, the UHMWPE blended product may be machined, packaged, and sterilized in accordance with conventional techniques.
    Type: Grant
    Filed: February 23, 2012
    Date of Patent: March 11, 2014
    Assignee: Zimmer, Inc.
    Inventors: Alicia Rufner, John Knight, Toni Rowe, Dirk Pletcher, Ray Gsell, Werner Schneider, Hallie E. Brinkerhuff
  • Patent number: 8664290
    Abstract: An antioxidant combined with UHMWPE prior to subjecting the UHMWPE to crosslinking irradiation. In one exemplary embodiment, the antioxidant is tocopherol. After the antioxidant is combined with the UHMWPE, the resulting blend may be formed into slabs, bar stock, and/or incorporated into a substrate, such as a metal, for example. The resulting product may then be subjected to crosslinking irradiation. In one exemplary embodiment, the UHMWPE blend is preheated prior to subjecting the same to crosslinking irradiation. Once irradiated, the UHMWPE blended product may be machined, packaged, and sterilized in accordance with conventional techniques.
    Type: Grant
    Filed: July 30, 2010
    Date of Patent: March 4, 2014
    Assignee: Zimmer, Inc.
    Inventors: Alicia Rufner, John Knight, Toni Rowe, Dirk Pletcher, Ray Gsell, Werner Schneider, Hallie E. Brinkerhuff
  • Patent number: 8664302
    Abstract: A process of preparing a polymer modified asphalt (PMA) comprising mixing a predetermined amount of a polymer-asphalt master batch with a predetermined amount of an asphalt-cross linking agent blend. The polymer-asphalt master batch comprises at least one polymer and a first asphalt. The asphalt-cross linking agent blend comprises a second asphalt and at least one cross linking agent. A predetermined amount of the polymer-asphalt master batch is blended with a predetermined amount of the asphalt-cross linking agent blend to form a PMA blend. Mixing of the PMA blend is performed without substantial delay following blending of the polymer-asphalt master batch with the asphalt-cross linking agent blend.
    Type: Grant
    Filed: September 30, 2008
    Date of Patent: March 4, 2014
    Assignee: Husky Oil Operations Limited
    Inventors: Susanna Ho, Daryl MacLeod, James Brown, Lloyd Gee, Ludo Zanzotto
  • Patent number: 8648132
    Abstract: Disclosed are systems and methods for the formation of a polymer nanocomposite material using a high-concentration masterbatch as a source of nanocomposite filler.
    Type: Grant
    Filed: February 7, 2008
    Date of Patent: February 11, 2014
    Assignee: NaturalNano, Inc.
    Inventors: Cathy Fleischer, Michael Duffy, Robert J. Kress, John R. Hickman, Aaron Wagner
  • Publication number: 20140005299
    Abstract: In one embodiment, A flame-retardant thermoplastic starch material, including (A1) 100 parts by weight of starch; (A2) 5 to 75 parts by weight of plasticizer; and (A3) 5 to 30 parts by weight of organic phosphonate flame-retardant, wherein the organic phosphonate flame-retardant has the following formula (I): wherein X is a trivalent aliphatic hydrocarbon radical containing 3 to 12 carbon atoms; R1 and R2 are independently C1 to C8 alkyl; and n is 0 or 1.
    Type: Application
    Filed: December 7, 2012
    Publication date: January 2, 2014
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Sheng-Ju LIAO, Chih-Jen CHANG, Yao-Chu CHUNG, Fu-Ming CHIEN, Chien-Ming CHEN
  • Publication number: 20130344236
    Abstract: Methods for mixing nylon compounds and compositions useful in mixing nylon compounds are provided. The methods and compositions disclosed are useful in producing nylon for wire and cable jacketing. The disclosed methods provide nylon having a reduced heat history compared to traditional methods. The disclosed methods and composition provide additional mixing capacity by reducing the amount of nylon that must be incorporated with additives per unit of final nylon composition. The disclosed methods and compositions provide the ability to select from a plurality of additive concentration levels in the final product by varying the ratio of a masterbatch compound containing a high concentration of the additive to a resin containing a low concentration or no additive.
    Type: Application
    Filed: March 15, 2013
    Publication date: December 26, 2013
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: John V. Facinelli, Clark V. Brown, David J. Loy, Robert A. Houck, JR., Dana A. Germain
  • Publication number: 20130338260
    Abstract: Disclosed is a thermoplastic melt-mixed composition including: a) a semicrystalline polyamide resin; b) a polyepoxy compound including at least two or more epoxy groups; the polyepoxy compound having a number average molecular weight of less than 8000; one or more carboxylic acid compounds selected from the group consisting of polyacids, acid alcohols and combinations of these, the carboxylic acid compounds have a number average molecular weight of less than 2000; and optionally, d) reinforcing agent; e) polymeric toughener; and f) further additives.
    Type: Application
    Filed: June 12, 2013
    Publication date: December 19, 2013
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: CURTIS R. CENTER, YUEFEI TAO, JENNIFER L. THOMPSON, LECH WILCZEK, CHEN QIAN ZHAO, ANDREW JAY DUNCAN
  • Publication number: 20130338261
    Abstract: Disclosed is a thermoplastic melt-mixed composition including: a) a polyamide resin; b) 0.50 to about 5.0 weight percent of one or more amino acid selected from the group consisting of primary amino acids and secondary amino adds; said amino add having no hydroxyl groups and no more than one carboxylic add; optionally, c) one or more polyepoxy compound including at least two or more epoxy groups; d) reinforcing agent; e) polymeric toughener; and f) further additives; wherein the weight percents of components a), b), c) d) e) and f) are based on the total weight of the thermoplastic melt-mixed composition. Also disclosed are processes for making the compositions.
    Type: Application
    Filed: June 12, 2013
    Publication date: December 19, 2013
    Inventors: Curtis R. Center, Yuefei Tao, Jennifer L. Thompson, Lech Wilczek, Chen Qian Zhao, Andrew Jay Duncan
  • Publication number: 20130331481
    Abstract: Capable of being provided are [1] a master batch comprising polyamide (X) comprising a diamine unit containing 70 mole % or more of a metaxylylenediamine unit and a dicarboxylic acid unit and an alkali compound (A), wherein an average particle diameter of the alkali compound (A) contained in the master batch is 50 ?m or less; a contained number of particles having a particle diameter of exceeding 80 ?m in 5 square millimeter of a cross section of the master batch is 1.5 particle or less; and a sum (m) of values obtained by multiplying a mole concentration of an alkali metal atom and a mole concentration of an alkaline earth metal atom each contained per g of the master batch by valencies thereof respectively is 60 ?mol/g or more and 1710 ?mol/g or less and [2] a production process for a polyamide resin composition prepared by making use of the master batch described in the above item [1].
    Type: Application
    Filed: February 22, 2012
    Publication date: December 12, 2013
    Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventor: Takashi Yamamoto
  • Publication number: 20130327434
    Abstract: A polyamide resin composition is provided which contains an anti-aging agent together with a deterioration inhibitor, such as a metal compound or a silica-based inorganic compound, for preventing deterioration caused by, for example, an acid component or a halogen component contained in a refrigerant or an oil, and which satisfactorily produces an anti-aging effect expected by adding the anti-aging agent. For producing a polyamide resin composition containing an (a) polyamide resin, a (b) polyolefin-based elastomer, at least one (c) deterioration inhibitor selected from the group consisting of hydroxides, oxides and basic salts of divalent or trivalent metals, and silica-based inorganic compounds, and a (d) anti-aging agent, a mixture prepared by mixing and kneading the (c) deterioration inhibitor and (b) polyolefin-based elastomer and a mixture prepared by mixing and kneading the (a) polyamide resin and the (d) anti-aging agent are mixed and kneaded.
    Type: Application
    Filed: February 22, 2012
    Publication date: December 12, 2013
    Applicant: BRIDGESTONE CORPORATION
    Inventor: Atsushi Kawai
  • Patent number: 8604104
    Abstract: The present invention relates to a cellulose ether composition for use in the preparation of dry mortar formulations, especially of cementitious bound tile adhesives (CBTA). The invention further relates to a dry mortar formulation comprising said cellulose ether composition. Furthermore, the invention is directed to a method of improving the slip resistance of a dry mortar formulation without deteriorating the mechanical strength and the open time of the cured dry mortar formulation.
    Type: Grant
    Filed: May 12, 2011
    Date of Patent: December 10, 2013
    Assignee: Dow Global Technologies LLC
    Inventors: Lars Fengler, Rene Kiesewetter
  • Patent number: 8604121
    Abstract: Disclosed are a molecular miscible blend solution of aromatic polyamide which is composed of a homogeneous mixture of a highly crystalline para-aromatic polyamide polymer and a non-crystalline polymer and is optically anisotropic, a method for preparing the same, an aromatic polyamide blend fiber prepared from the same and a method for dyeing the fiber at room pressure. Disclosed is a molecular miscible blend solution of aromatic polyamide and a non-crystalline polymer, in which an aromatic polyamide polymer having repeat units represented by the following Formula (I) and polyvinylpyrrolidone at an amount of 5 to 100% of the weight of the aromatic polyamide are dissolved in a polar organic solvent containing an inorganic salt.
    Type: Grant
    Filed: October 15, 2009
    Date of Patent: December 10, 2013
    Assignee: Kyungpook National University Industry-Academic Cooperation Foundation
    Inventor: Tae-Jin Oh
  • Publication number: 20130317137
    Abstract: The invention relates to a rubber composition based on at least one diene elastomer, a reinforcing filler comprising at least carbon black and an inorganic filler with an inorganic filler content of less than or equal to 50 parts by weight per hundred parts of elastomer, characterized in that the composition is obtained from a first masterbatch comprising at least one first diene elastomer and carbon black, and having a dispersion of the carbon black in the elastomeric matrix that has a Z value of greater than or equal to 90, added to which is the inorganic filler and at least one second elastomer, identical to or different from the first elastomer, and also to the process for preparing such a composition.
    Type: Application
    Filed: December 9, 2011
    Publication date: November 28, 2013
    Applicants: MICHELIN RECHERCHE ET TECHNIQUE S.A., COMPAGNIE GENERALE DES ESTABLISSEMENTS MICHELIN
    Inventors: Damien Thomasson, Marc Sevignon
  • Patent number: 8592509
    Abstract: A method includes: (a) mixing in a first step a first polymer and a filler, (b) mixing in a second step a second polymer and a polyhydroxy compound, and (c) mixing in a third mixing step the mixtures resulting from steps (a) and (b) and optionally additional filler, wherein said first polymer and second polymer may be the same polymer or different polymers, and wherein steps (a) and (b) can occur simultaneously or consecutively.
    Type: Grant
    Filed: December 30, 2010
    Date of Patent: November 26, 2013
    Assignee: Bridgestone Corporation
    Inventors: Zhong-Ren Chen, Steven Luo
  • Publication number: 20130296464
    Abstract: Fluoroelastomeric gel having the following properties: appearance: transparent gelatinous solid; water content between 10% and 90% by weight; density between 1.1 and 2.1 g/cm3; said gel satisfies the following test: dried in a stove at 90° C. until a constant weight gives curable fluoroelastomers.
    Type: Application
    Filed: July 9, 2013
    Publication date: November 7, 2013
    Inventors: Marco Apostolo, Stefano Arrigoni, Margherita Albano
  • Publication number: 20130296463
    Abstract: The present invention relates to a method for producing a rubber composition containing a rubber component (A) of at least one selected from natural rubbers and synthetic dienic rubbers, a filler containing an inorganic filler (B), a silane coupling agent (C) and at least one vulcanization promoter (D) selected from guanidines, sulfenamides, thiazoles, thiurams, dithiocarbamate salts, thioureas and xanthate salts, wherein the rubber composition is kneaded in at least three stages, in the first stage (X) of kneading, the rubber component (A), all or a part of the inorganic filler (B), and all or a part of the silane coupling agent (C) are kneaded, then in the stage (Y) on and after the second stage of kneading but before the final stage, the vulcanization promoter (D) is added and kneaded, and in the final stage (Z) of kneading, a vulcanizing agent is added and kneaded.
    Type: Application
    Filed: October 3, 2011
    Publication date: November 7, 2013
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Seiichi Katou, Satoshi Horie
  • Publication number: 20130289165
    Abstract: Reinforced rubber composition based at least (a) on an elastomeric matrix comprising natural rubber as the predominant diene elastomer, (b) on a reinforcing filler comprising carbon black in a weight fraction of more than 50% relative to the total weight of the filler, and (c) on a compound belonging to the families of hydrazides or hydrazones or to the family of amines, wherein the carbon black is dispersed in the elastomeric matrix with a Z value of greater than or equal to 80. This rubber composition is intended, for example, for the manufacture of a semi-finished rubber product intended for a tyre of motor vehicles.
    Type: Application
    Filed: December 19, 2011
    Publication date: October 31, 2013
    Applicants: MICHELIN RECHERCHE ET TECHNIQUE S.A., COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Stéphanie De Landtsheer, Damien Thomasson
  • Publication number: 20130281570
    Abstract: A process for producing an unvulcanized rubber composition comprising a rubber wet master batch yielded by using, as raw materials, at least a filler, a dispersing solvent and a rubber latex solution, the rubber latex solution comprising two or more rubber latex solution species different from each other, and the process comprising a step (I) of dispersing the filler into the dispersing solvent to produce a filler-containing slurry solution, a step (II) of mixing the filler-containing slurry solution with the rubber latex solution to produce a filler-containing rubber latex solution, and a step (III) of coagulating and drying the filler-containing rubber latex solution to produce the rubber wet master batch.
    Type: Application
    Filed: October 27, 2011
    Publication date: October 24, 2013
    Applicant: TOYO TIRE & RUBBER CO., LTD.
    Inventor: Takashi Miyasaka
  • Patent number: 8563629
    Abstract: The particle size distribution of a first fly ash is compared to an ideal particle size distribution that was empirically developed to provide a resin melt with a lower viscosity as more fly ash is added. A second fly ash material is similarly compared to the ideal curve and then is blended or optimized to provide an optimum filler for use with a suitable resin or similar material. The blended optimum filler is combined with a resin, an acid scavenger and an anti-oxidant to form a master batch which is available for mixing with other resins to form a material that is processed into a final product. Additional additives may be added for, among other things, foaming and coloration.
    Type: Grant
    Filed: May 31, 2010
    Date of Patent: October 22, 2013
    Assignee: Revolutionary Plastics, LLC
    Inventors: Jack Raymond Prince, Jared L. Sommer
  • Publication number: 20130261225
    Abstract: A disk-like nanoparticle includes a core layer that comprises a cross-linked multi-vinyl substituted aromatic hydrocarbon and a shell layer that comprises tri-block copolymer chains, each having a first, a second, and a third block. The first and third blocks of the tri-block copolymer chains comprise vinyl aromatic monomer units and are crosslinked with the core. The second block comprises conjugated diene monomer units and comprises a top and bottom axial surface of the disk-like nanoparticle. In the case of a nanoparticle having A-B-C tri-block copolymer chains, the third block comprises a top and bottom axial surface of the disk-like nanoparticle.
    Type: Application
    Filed: October 15, 2012
    Publication date: October 3, 2013
    Inventors: Xiaorong Wang, Victor J. Foltz, Yuan-Yong Yan, Pat Sadhukhan
  • Patent number: 8546468
    Abstract: The present invention relates to a method for the continuous production of a polymer by radical polymerization, wherein at least three materials are mixed with microstructures in one or more mixers and are then polymerized in at least one reaction zone.
    Type: Grant
    Filed: April 30, 2009
    Date of Patent: October 1, 2013
    Assignee: BASF SE
    Inventors: Wolfgang Mattmann, Wolfgang Loth, Bolette Urtel, Elke Guetlich-Hauk, Christian Hubert Weidl, Andreas Daisse
  • Publication number: 20130253090
    Abstract: The present invention provides a method for producing a rubber composition containing a rubber component (A) of at least one selected from natural rubbers and synthetic dienic rubbers, a filler containing an inorganic filler (B), a silane coupling agent (C) and at least one vulcanization promoter (D) selected from thiurams, dithiocarbamate salts, thioureas and xanthate salts, wherein the rubber composition is kneaded in multiple stages, and in the first stage of kneading, the rubber component (A), all or a part of the inorganic filler (B), all or apart of the silane coupling agent (C) and the vulcanization promoter (D) are kneaded. The production method enables production of a rubber composition having a low-heat-generation property while successfully enhancing the coupling function activity of the silane coupling agent.
    Type: Application
    Filed: October 3, 2011
    Publication date: September 26, 2013
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Seiichi Katou, Satoshi Horie
  • Publication number: 20130237637
    Abstract: The present invention provides a method for producing a rubber composition containing a rubber component (A) of at least one selected from natural rubbers and synthetic dienic rubbers, an inorganic filler (B), a silane coupling agent (C) and an acidic compound (D), wherein the rubber composition is kneaded in multiple stages, and in the final stage of kneading, the acidic compound (D) is added, and the highest temperature of the rubber composition in the final stage of kneading is from 60 to 120° C. The production method enables production of a rubber composition having a low-heat-generation property while successfully preventing the coupling function activity of the silane coupling agent from lowering.
    Type: Application
    Filed: October 3, 2011
    Publication date: September 12, 2013
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Seiichi Katou, Satoshi Horie
  • Publication number: 20130203893
    Abstract: A tread rubber composition having improved abrasion resistance is provided. The tread rubber composition comprises a conjugated diene polymer or copolymer, at least one filler, from 2 to 10 phr of liquid polybutadiene, from 2 to 5 phr of zinc oxide and from 1 to 100 phr of process oil. The liquid polybutadiene is functionalized by reaction with unsaturated acid anhydride, has a number average molecular weight of from 3 to 8 kg/mol and an acid number of from 40 to 80. Also provided are methods for preparing the tread rubber composition comprising mixing of the foregoing ingredients by master-batch and final batch steps whereby the abrasion resistance of the tread rubber composition is improved.
    Type: Application
    Filed: October 18, 2011
    Publication date: August 8, 2013
    Applicant: Bridgestone Corporation
    Inventors: Amy M. Randall, Sheel P. Agarwal, William L. Hergenrother
  • Patent number: 8501837
    Abstract: The invention relates to a tire having a rubber component which contains short fiber reinforcement with a compatabilizer for the fiber reinforcement. Desirably said short fiber reinforcement is an aramid pulp. Desirably said compatabilizer is an epoxy functionalized natural rubber.
    Type: Grant
    Filed: November 5, 2012
    Date of Patent: August 6, 2013
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Junling Zhao, Martin Paul Cohen
  • Patent number: 8501866
    Abstract: Color concentrates for thermoplastic biofiber composites are disclosed. The concentrates employ three factors to achieve concentrated delivery of color to the processing machine and excellent and substantially uniform dispersion of color in the processing machine: melt flow of the concentrate exceeding at least 4 g/10 min. using ASTM D-1238; pellet size of the concentrate such that at least 50 pellets weigh less than one gram; and weight percent of the colorant ingredients in the concentrate exceeding at least 30 weight percent.
    Type: Grant
    Filed: September 24, 2010
    Date of Patent: August 6, 2013
    Assignee: PolyOne Corporation
    Inventors: Peter Prusak, Thomas M. Majewski
  • Publication number: 20130192746
    Abstract: The present invention provides a process for making silica-filled rubber masterbatch using silica hydrophobated with a trimethoxy silane coupling agent that is soluble in an alcohol-water solution containing at least about 70 wt % water. One embodiment uses a mixture of trimethoxy silanes, one or more of which react with rubber to bond the silica to the rubber, and one or more of which do not react with rubber, but do hydrophobate the silica. Hydrophobated silica is mixed with latex polymer and incorporated into rubber during coagulation of the latex, which is preferably coagulated with calcium chloride. The present invention further provides a process for making the trimethoxy silane coupling agents. Preferred trimethoxy silane coupling agents include bis-(3-trimethoxysilylpropyl)-disulfide and bis-(3-trimethoxysilylpropyl)-tetrasulfide.
    Type: Application
    Filed: January 22, 2013
    Publication date: August 1, 2013
    Inventors: Peter J. Wallen, Christopher J. Hardiman, Howard A. Colvin, Gregory C. Bowman, Jose Eduardo Rojas Reyna
  • Patent number: 8481614
    Abstract: The process of the present invention provides a novel way of producing a masterbatch or polymer improver by heating a wax or polymer with a low temperature and mixing the molten wax with a additives, including pigments, at a low temperature above the congealing point of the wax to create a carrier material, in doing so this process will not degrade the pigment or additive which will be mixed together.
    Type: Grant
    Filed: August 26, 2008
    Date of Patent: July 9, 2013
    Inventor: Lionel Nicholas Mantzivis
  • Publication number: 20130172446
    Abstract: A method includes: mixing a polymer cement and a filler to form a solution masterbatch; optionally drying the solution masterbatch to form a crumb polymer composition; mixing a low viscosity polymeric or oligomeric liquid into the solution masterbatch or crumb polymer composition; and intermeshing mixing the solution masterbatch or crumb polymer composition.
    Type: Application
    Filed: December 28, 2012
    Publication date: July 4, 2013
    Applicant: BRIDGESTONE CORPORATION
    Inventor: Bridgestone Corporation
  • Patent number: 8470912
    Abstract: A granulated colorant as a granulation product of a powdery nigrosine dye, that has a bulk density of 0.4 to 0.7 g/ml and a hardness of 1 to 20 N. A high-concentration master batch obtained by blending a granulated colorant and a thermoplastic resin, which comprises 25 to 100 parts by weight of a nigrosine dye in the granulated colorant per 100 parts by weight of the thermoplastic resin. A colored composition comprising a granulated colorant or high-concentration master batch and a thermoplastic resin or thermoplastic elastomer.
    Type: Grant
    Filed: November 19, 2010
    Date of Patent: June 25, 2013
    Assignee: Orient Chemical Industries, Ltd.
    Inventors: Akihiko Hayashi, Satonari Morikawa
  • Publication number: 20130158164
    Abstract: An elastomer composite with silica-containing filler is described, along with methods to make the same. The advantages achieved with the elastomer composite and methods are further described.
    Type: Application
    Filed: September 14, 2011
    Publication date: June 20, 2013
    Applicant: CABOT CORPORATION
    Inventors: Michael D. Morris, Anand Prakash, Frederick H. Rumpf
  • Publication number: 20130158163
    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: Application
    Filed: August 19, 2011
    Publication date: June 20, 2013
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Reiko Yagi, Kumi Fujiki
  • Patent number: 8461268
    Abstract: A golf ball material composed of (A) an oxygen-containing inorganic metal compound in the form of a particulate or a master batch capable of neutralizing at least some of the acid groups in an acid-containing polymer blend, (B) one or more polymer selected from among diene polymers, thermoplastic polymers and thermoset polymers, and (C) an acid-containing polymer is prepared by mixing component A in a blend of components B and C. The golf ball material has a good heat resistance, flowability and processability, and can be used to produce high-performance golf balls having durability, scuff resistance and optimal hardness without a loss of rebound.
    Type: Grant
    Filed: November 15, 2011
    Date of Patent: June 11, 2013
    Assignee: Bridgestone Sports Co., Ltd.
    Inventors: Yoshinori Egashira, Eiji Takehana
  • Patent number: 8450396
    Abstract: A durable, flexible, impermeable thermoplastic elastomer composition is produced using a dynamic vulcanization process conducted in a high shear mixer at elevated temperature.
    Type: Grant
    Filed: October 11, 2007
    Date of Patent: May 28, 2013
    Assignees: ExxonMobil Chemical Patents Inc., The Yokohama Rubber Co., Ltd.
    Inventors: Andy Haishung Tsou, Yuichi Hara, Michael Kenneth Lyon, Yoshihiro Soeda
  • Patent number: 8450419
    Abstract: The invention provides a golf ball material comprising components (A), (B) and (C): (A) a mixture of different masterbatches prepared by separately masterbatching two or more different metal ions (A1) or a masterbatch prepared by simultaneously masterbatching two or more different metal ions in itself (A2), (B) one or more polymer selected from the group consisting of diene polymers, thermoplastic polymers and thermoset polymers, and (C) one or more polymer having an acid content of from about 0.5 to about 30 wt % and selected from the group consisting of olefin-unsaturated carboxylic acid copolymers, olefin-unsaturated carboxylic acid-unsaturated carboxylic acid ester terpolymers, unsaturated carboxylic anhydride-containing polymers, unsaturated dicarboxylic acid-containing polymers and unsaturated dicarboxylic acid half ester-containing polymers. The invention also provides a method for preparing such a golf ball material, and a golf ball made of the material.
    Type: Grant
    Filed: August 24, 2010
    Date of Patent: May 28, 2013
    Assignee: Bridgestone Sports Co., Ltd.
    Inventors: Yoshinori Egashira, Eiji Takehana
  • Publication number: 20130116360
    Abstract: The present disclosure is directed to methods for preparing rubber compositions where those rubber compositions comprise at least one telechelic polymer and at least one filler. The methods make use of a mixer that includes a mixing chamber and at least one rotor with wings of specified configuration. Use of the disclosed methods yields a rubber composition with improved properties including an improved dispersion index after master batch mixing as compared to the same rubber composition mixed using standard 4 wing mixers.
    Type: Application
    Filed: October 19, 2012
    Publication date: May 9, 2013
    Applicant: BRIDGESTONE CORPORATION
    Inventor: BRIDGESTONE CORPORATION
  • Patent number: 8431634
    Abstract: A polypropylene resin composition comprising (a) 100 parts by weight of a resin composition, which contains 51 to 99% by weight of a propylene polymer and 1 to 49% by weight of an ethylene polymer having a density of 0.85 to 0.93 g/cm3, and (b) 0.001 to 0.5 part by weight of a metal salt defined by a specific chemical formula; and a process for producing such a polypropylene resin composition, comprising the steps of (1) mixing 1 to 100 parts by weight of the metal salt with 100 parts by weight of the propylene polymer and/or the ethylene polymer, thereby producing a master batch, and (2) mixing the master batch with a mixture containing the propylene polymer and the ethylene polymer.
    Type: Grant
    Filed: September 1, 2010
    Date of Patent: April 30, 2013
    Assignee: Sumitomo Chemical Company, Limited
    Inventor: Yoshiaki Oobayashi
  • Patent number: 8426515
    Abstract: Provided are an organically modified silica master batch elastomer having superior affinity for silica and a method for preparing the same. A copolymer solution-polymerized from a conjugated diene-based monomer and a vinyl aromatic monomer is mixed in solution with organically modified silica having the silica modified with a specific aliphatic hydrocarbon to prepare the organically modified silica master batch elastomer. The organically modified silica master batch elastomer according to the present invention has improved mechanical properties, abrasion resistance and blending processability over the existing master batch elastomers containing common silica. Thus, when it is used as a tire material, improved fuel efficiency, abrasion resistance and wet traction may be expected.
    Type: Grant
    Filed: June 3, 2011
    Date of Patent: April 23, 2013
    Assignee: Korea Kumho Petrochemical Co., Ltd.
    Inventors: Young Hoon Ko, Jae Young Ko, Dae Hyung Lee, Haeng Shin Jang
  • Publication number: 20130096230
    Abstract: A process for the preparation of a rubber composition for the manufacture of tyres is presented. The composition is based on one or more diene elastomers, one or more reinforcing fillers, and a crosslinking system. The composition includes particles of one or more thermoplastic materials chosen from amorphous thermoplastic materials and semicrystalline thermoplastic materials, with the glass transition temperature of the amorphous thermoplastic material or materials and the melting point of the semicrystalline thermoplastic material or materials varying from 80° C. to 300° C. The particles exhibit a volume-average diameter of less than or equal to 200 ?m.
    Type: Application
    Filed: May 24, 2011
    Publication date: April 18, 2013
    Applicants: MICHELIN RECHERCHE ET TECHNIQUE S.A., COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Vincent Abad, Emmanuel Custodero, Damien Thomasson
  • Publication number: 20130096231
    Abstract: The instant invention provides a masterbatch composition, method of producing the same, polymeric compositions suitable for films, and films made therefrom. The masterbatch composition according to the present invention comprises: (a) from 70 to 90 percent by weight of a filler comprising calcium carbonate; and (b) from 10 to 30 percent by weight of a propylene/alpha-olefin copolymer composition, wherein said propylene/alpha-olefin copolymer composition has a crystallinity in the range of from 1 percent by weight to 30 percent by weight, a heat of fusion in the range of from 2 Joules/gram to 50 Joules/gram, and a DSC melting point in the range of 25° C. to 110° C.
    Type: Application
    Filed: June 17, 2011
    Publication date: April 18, 2013
    Applicant: Dow Global Technologies LLC.
    Inventors: Satish V. Awate, Brad A. Cobler, Rajen M. Patel
  • Publication number: 20130096229
    Abstract: Plastisols and organosols are provided that include plasticizers that include mono-, di- and triesters of glycerol. The plasticizers are good solvators for polyvinyl chloride and impart low plastisol and organosol viscosities.
    Type: Application
    Filed: December 3, 2012
    Publication date: April 18, 2013
    Applicant: Eastman Specialties Holdings Corporation
    Inventor: Eastman Specialties Holdings Corporation