Interpolymer With At Least One Aromatic Hydrocarbon Monomer Patents (Class 524/575)
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Patent number: 8324309Abstract: The present invention provides a low viscosity block copolymer for non-wovens construction adhesives of the formula [A?(A/B)]nX, wherein A represents an aromatic vinyl compound and (A/B) represents a polymer block obtained by random copolymerization of a mixture of a aromatic vinyl compound and butadiene in a weight ratio in the range of from 2:98 to 30:70, wherein n is an integer in the range of from 1 to 5, and wherein X is the remainder of the coupling agent.Type: GrantFiled: April 27, 2010Date of Patent: December 4, 2012Assignee: Kraton Polymers US LLCInventor: Donn Dubois
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Patent number: 8318846Abstract: An object of the present invention is to provide an olefin-based thermoplastic elastomer composition that has both weatherability and flexibility at low temperatures, is excellent in fluidity, and causes no stickiness even in the use at high temperatures; a process oil composition for elastomers that serves as the raw material of the thermoplastic elastomer composition and contributes to the above characteristics; and an oil-extended elastomer containing the process oil composition. The process oil composition for elastomers of the present invention has a property that, when 20 parts by weight of the process oil composition for elastomers are blended with respect to 100 parts by weight of a propylene homopolymer, the melting point of the propylene homopolymer is lowered by 2 to 4.5° C. compared to that of the propylene homopolymer without blending.Type: GrantFiled: November 10, 2006Date of Patent: November 27, 2012Assignee: Mitsui Chemicals, Inc.Inventors: Yuichi Ito, Hidenari Nakahama, Kotaro Ichino
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Publication number: 20120277369Abstract: There are provided a modified conjugated diene-based polymer having a good balance between the hysteresis loss properties and the wet skid resistance, practically sufficient abrasion resistance and fracture strength, and high processability when formed into a vulcanized product, and a modified conjugated diene-based polymer composition. A method for producing a modified conjugated diene-based polymer, comprising: a polymerization step of polymerizing a conjugated diene compound or copolymerizing a conjugated diene compound with an aromatic vinyl compound using an alkali metal compound or an alkaline earth metal compound as a polymerization initiator to obtain a conjugated diene-based polymer having a reactive end, and a modifying step of reacting a compound having a specific structure with the reactive end of the conjugated diene-based polymer.Type: ApplicationFiled: September 22, 2010Publication date: November 1, 2012Inventors: Junichi Yoshida, Shinichi Sekikawa, Takaaki Matsuda
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Publication number: 20120259035Abstract: The invention relates to a method for preparing a silica/synthetic diene elastomer masterbatch, comprising the following successive steps: doping the silica with an at least divalent metallic element; preparing at least one dispersion of the resulting doped silica in water; bringing a synthetic diene elastomer latex into contact with the aqueous doped-silica dispersion and mixing them together so as to obtain a coagulum; recovering the coagulum; and drying the recovered coagulum so as to obtain the masterbatch.Type: ApplicationFiled: October 25, 2010Publication date: October 11, 2012Applicants: MICHELIN RECHERCHE ET TECHNIQUE S.A., COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELINInventors: Julien Berriot, Benoît De Gaudemaris, Géraldine Laffargue
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Publication number: 20120259060Abstract: A rubber composition comprising a metal salt of a carboxylic acid used as a curing agent, a highly unsaturated dieene rubber, a filler and a sulfur vulcanization system of between 0.5 phr and 8 phr of sulfur and at least one vulcanization accelerator. Particular embodiments may further include between 1 phr and 6 phr of a metal salt of a carboxylic acid that increases a tear index of the cured elastomer composition by at least 50 percent as compared to a similar cured elastomer composition, such similar cured elastomer composition being different in composition only in that it (1) lacks the metal salt of a carboxylic acid and (2) has an increased amount of the sulfur vulcanization system at about the same sulfur to accelerator ratio to maintain a 10% modulus of elongation at 23 0C to within 15% of the modulus of the cured rubber composition.Type: ApplicationFiled: December 28, 2010Publication date: October 11, 2012Inventor: Xiaofeng Shaw Yang
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Publication number: 20120252966Abstract: An object of the present invention is to provide a process for producing a modified conjugated diene-based polymer suitable for preparing a polymer composition excellent in the fuel cost saving effect. The present invention provides a process for producing a modified conjugated diene-based polymer, comprising reacting a conjugated diene-based polymer having a monomer unit based on a conjugated diene compound and a monomer unit based on a compound represented by the following formula (1), with an organometallic compound, and reacting the resulting reaction product with a hydrocarbyloxysilane compound: wherein R11, R12, R13, R14 and R15 each represent a hydrogen atom or an alkyl group, at least one of R11, R12, R13, R14 and R15 is an alkyl group, R16, R17 and R18 each represent a hydrogen atom or a hydrocarbyl group, R19 represents a hydrocarbylene group, and k represents 0 or 1.Type: ApplicationFiled: March 27, 2012Publication date: October 4, 2012Inventor: Mana ITO
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Publication number: 20120252954Abstract: A method for producing a two-dimensional rubber covering, in particular a floor covering, comprising the following steps: preparing an unvulcanised rubber material, mixing a filler into the unvulcanised rubber material, converting the rubber material into a two-dimensional state, and crosslinking the rubber material in the two-dimensional state. The method includes that the filler contains particles of glass, porcelain, earthenware and/or stoneware. Also, a covering produced in the described manner.Type: ApplicationFiled: October 25, 2010Publication date: October 4, 2012Applicant: NORA SYSTEMS GMBHInventors: Gregor Grun, Mario Kroeger
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Patent number: 8278395Abstract: The present invention has an object to provide a conjugated diene-based polymer, subjected to a vulcanization treatment to make a vulcanized rubber, the vulcanized rubber useful as a material for tire treads excellent in the balance among wet skid characteristics, low hysteresis loss, abrasion resistance, breaking strength and rigidity, and to provide its manufacturing process.Type: GrantFiled: March 25, 2008Date of Patent: October 2, 2012Assignee: Asahi Kasei Chemicals CorporationInventors: Yuichi Kitagawa, Toshikazu Hoshina, Kiyoo Katou
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Publication number: 20120244304Abstract: Farnesene interpolymer comprises units derived from a farnesene (e.g., ?-farnesene or ?-farnesene) and units derived from at least one vinyl monomer. The farnesene interpolymer can be prepared by copolymerizing the farnesene and at least one vinyl monomer in the presence of a catalyst. In some embodiments, the farnesene is prepared from a sugar by using a microorganism. In other embodiments, the at least one vinyl monomer is ethylene, an ?-olefin, or a substituted or unsubstituted vinyl halide, vinyl ether, acrylonitrile, acrylic ester, methacrylic ester, acrylamide or methacrylamide, or a combination thereof.Type: ApplicationFiled: May 25, 2012Publication date: September 27, 2012Applicant: Amyris, Inc.Inventor: Derek James MCPHEE
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Publication number: 20120241589Abstract: A plastic packaging component is provided that is formed of a resin containing an electromagnetic spectrally detectable additive mixed with the resin. The resin formed into a plastic packaging component of an aerosol package lid, an aerosol spray button, an aerosol spray tube, a trigger sprayer, an integrated lid-sprayer, a grease cartridge, a grease cap, plastic fiber toweling, a packaging strap, a pail lid, a jar cap, or a brush. A process for detecting a displaced packaging component in an organic production stream is provided that includes adding to a resin an electromagnetically detectable additive intermixed with the resin and forming the additive loaded resin into the plastic packaging component. The production stream is then scanned for the detectable signal of the additive. Upon detecting the additive, an alarm signal is provided that the production stream contains the displaced packaging component.Type: ApplicationFiled: February 14, 2012Publication date: September 27, 2012Inventors: Robert H. Martin, William A. Price, II, John Gregory Bruce, Darylnn Phillips Jordan, Craig Martin Stearns
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Publication number: 20120225984Abstract: This invention relates to novel sulfur-containing silane coupling agents, and organic polymers containing carbon-carbon double bonds. These novel silanes can be carried on organic and inorganic fillers. The invention also relates to articles of manufacture, particularly tires, made from the elastomer compositions described herein.Type: ApplicationFiled: April 27, 2012Publication date: September 6, 2012Applicant: Momentive Performance Materials Inc.Inventors: Richard W. CRUSE, W. Michael YORK, Eric R. POHL, Antonio CHAVES, Prashant JOSHI
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Publication number: 20120199200Abstract: An edge seal for manufacturing two-pane or multi-pane insulating glass or solar modules includes a sealant and a bonding agent. The sealant contains a polymer modified with special reactive groups and has the following overall composition: olefinic polymers included in an amount from about 10% to about 90% by weight of the total composition; at least one filler included in an amount from about 10% to about 65% by weight of the total composition; at least one inorganic filler that is a thermal and oxidative stabilizer in an amount from about 2% to about 30%; at least one of a desiccant and a water scavenger included in an amount from about 2.5% to about 25% by weight of the total composition; and at least one aging resistor including an anti-oxidant or UV stabilizer included in an amount from about 0% to about 3% by weight of the total composition.Type: ApplicationFiled: October 14, 2010Publication date: August 9, 2012Applicant: ADCP Products, Inc.Inventors: Harald Becker, Heike Brucher, Norbert Schott
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Publication number: 20120202929Abstract: The present invention relates to a pneumonic tire and a rubber composition used in the same, both of which are capable of preventing static charge build-up on a tire surface without degrading various tire performances such as rolling resistance and so on, and particularly to a rubber composition comprising 10 to 30 parts by mass of an ionic liquid and 5 to 95 parts by mass of silica per 100 parts by mass of a rubber component containing at least 50% by mass of styrene-butadiene rubber, as well as a pneumatic tire using such a rubber composition in a tread portion.Type: ApplicationFiled: October 15, 2010Publication date: August 9, 2012Applicant: BRIDGESTONE CORPORATIONInventors: Munenori Iizuka, Masashi Otsuki
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Patent number: 8236875Abstract: The invention relates to a rubber mixture, in particular for vehicle air-inflated tires, seat belts, belts and hoses. The rubber mixture is characterized by the following composition: at least one polar or non-polar rubber and at least one bright and/or dark filler and at least one softener, wherein the softener is free of polycyclic aromatics according to Directive 76/769/EEC, and wherein the carbon source for the softener comes from non-fossil sources, and other additives.Type: GrantFiled: January 13, 2011Date of Patent: August 7, 2012Assignee: Continental Reifen Deutschland GmbHInventors: Carla Recker, Thorsten Reese, Jens Schöning
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Publication number: 20120196976Abstract: The invention relates to the use of an adhesive composition between a vulcanized rubber part and an uncured or prevulcanized or vulcanized rubber part, based on at least one highly unsaturated elastomer chosen from the group formed by natural rubber, polyisoprene, polybutadiene, styrene-butadiene, styrene-isoprene and butadiene-isoprene copolymers and styrene-butadiene-isoprene terpolymers, an aliphatic solvent and a “curing” system comprising at least one stable aryl dinitrile oxide compound.Type: ApplicationFiled: March 30, 2010Publication date: August 2, 2012Applicants: Michelin Rechercheet Technique S.A., Societe De Technologie MichelinInventors: José Carlos Araujo Da Silva, Vincent Hunault, Pierre Robert, Anne Veyland
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Publication number: 20120180950Abstract: A primer composition including a toughening agent can be applied to a surface to be bonded using a separate curable adhesive composition. The primer composition toughens cured reaction products of the adhesive composition. In some embodiments the primer composition can also enhance reactivity of the curable adhesive composition.Type: ApplicationFiled: March 26, 2012Publication date: July 19, 2012Applicant: Henkel CorporationInventors: Shabbir Attarwala, Ifeanyi Chris Broderick, Prakash S. Patel
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Publication number: 20120174661Abstract: The present invention relates to a methodology for determining various rubber composition factors that play a role in the structural and functional attributes of the rubber. The present invention also relates to tire treads that are derived using the methodology for optimizing the same as described herein.Type: ApplicationFiled: March 20, 2012Publication date: July 12, 2012Inventors: William L. Hergenrother, James D. Ulmer, Christopher G. Robertson
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Publication number: 20120172518Abstract: Methods and compositions are provided that relate to weighted elastomers. The weighted elastomers may comprise an elastomer and a weighting agent attached to an outer surface of the elastomer. An embodiment includes a method of cementing that comprises providing a cement composition containing cement, water, and a weighted elastomer. In addition, the cement composition may be introduced into a subterranean formation and allowed to set therein.Type: ApplicationFiled: March 12, 2012Publication date: July 5, 2012Applicant: HALLIBURTON ENERGY SERVICES, INC.Inventors: Craig W. Roddy, Jeffery D. Karcher, Rickey L. Morgan, D. Chad Brenneis
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Publication number: 20120165464Abstract: A method for preparing a functionalized polymer, the method comprising the step of reacting a reactive polymer with a functionalizing agent defined by formula I or formula II: or combinations thereof, where R1, R2, and R3 are each independently a divalent organic group, R4 and R5 are each independently a monovalent organic group, a is an integer from 0 to 1, x is an integer from 0 to 2, y is an integer from 1 to 3, x+y=3, and ? is a protected amino group.Type: ApplicationFiled: December 27, 2011Publication date: June 28, 2012Inventors: Terrence E. HOGAN, Xiao-Dong Pan, Kenji Nakatani, Ryota Tamate
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Patent number: 8207275Abstract: A functionalized polymer defined by the formula ?-R1-?, where ? is a polymer chain, R1 is a bond or a divalent organic group, and ? is a sulfur-containing heterocycle.Type: GrantFiled: May 24, 2010Date of Patent: June 26, 2012Assignee: Bridgestone CorporationInventors: Terrence E. Hogan, Christine Rademacher, William Hergenrother, David F. Lawson
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Publication number: 20120157615Abstract: The present invention relates to a method for producing a hydrogenated block copolymer, comprises the steps of: (a) forming a block copolymer by allowing a living polymer having a specific structure to react with a bis-silane coupling agent having a specific structure; (b) hydrogenating the block copolymer to form a hydrogenated block copolymer; and (c) isolating the resultant hydrogenated block copolymer, in which the number of functional groups derived from the coupling agent in the hydrogenated block copolymer isolated in the step (c) is 1.5 or less per block copolymer molecule; a hydrogenated block copolymer obtained by the method; and a composition containing the hydrogenated block copolymer.Type: ApplicationFiled: June 3, 2010Publication date: June 21, 2012Applicant: KURARAY CO., LTD.Inventors: Takaaki Nishikawa, Yosuke Jogo, Nobuhiro Moriguchi, Mizuho Maeda
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Publication number: 20120157616Abstract: Described are diol-derived organofunctional silanes in which the silanes contain cyclic and bridged alkoxy groups derived from hydrocarbon-based diols and methods for the preparation of the silanes. Also described are rubber compositions containing the diol-derived organofunctional silanes, methods for the preparation of the rubber compositions and articles of manufacture containing the rubber compositions, in particular, automotive tires and components thereof.Type: ApplicationFiled: February 28, 2012Publication date: June 21, 2012Applicant: Momentive Performance Materials Inc.Inventors: Antonio Chaves, Richard W. Cruse, Eric Raymond Pohl
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Patent number: 8202459Abstract: A process for producing a thermoplastic resin molded product, comprising: a placement step of placing a thermoplastic resin particle composition 6A into a cavity 22 of a rubber die 2 made of a rubber material; a particle heating step of irradiating the thermoplastic resin particle composition 6A in the cavity 22 with electromagnetic waves having wavelengths ranging from 0.78 to 2 ?m through the rubber die 2, thereby heating to melt the thermoplastic resin particle composition 6A; a filling step of filling a thermoplastic resin 6 in a molten state into a space 220 left in the cavity 22; and a cooling step of cooling a thermoplastic resin 6 in the cavity 22 thereby obtaining a thermoplastic resin molded product.Type: GrantFiled: March 27, 2009Date of Patent: June 19, 2012Assignee: Techno Polymer Co., Ltd.Inventors: Fumio Kurihara, Masamitsu Takami, Kazumasa Oota, Tetsuya Kubota
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Publication number: 20120142840Abstract: Method of manufacturing granulates or continuous strips intended for feeding an extrusion machine, formed of a gel comprising at least, as majority elastomer, a styrene thermoplastic elastomer and more than 200 phr of an extender oil, each element of the granulate having a given surface area. The granulate element is sized so that the compactness, of a granulate element, is less than a value decreasing from 1500 m?1 to 375 m?1 and deposited on the surface of said granulates is an anti-tack agent having a value increasing from 2 cm3 to 8 cm3 per m2 of granulate surface area, when the mean size of the particles of said anti-tack agent increases from a value of 1 ?m to 100 ?m.Type: ApplicationFiled: March 8, 2010Publication date: June 7, 2012Applicant: Societe de Technologie MichelinInventors: Vincent Abad, Jean-Marie Mus
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Publication number: 20120136114Abstract: The present invention relates to a method for producing a hydrogenated block copolymer, including the steps of: (a) forming a block copolymer by allowing a living polymer having a specific structure to react with a tetra- or more functional silane coupling agent; (b) hydrogenating the block copolymer to form a hydrogenated block copolymer; (c) isolating the resultant hydrogenated block copolymer; and (d) deactivating a functional group in the silane coupling agent and/or an unreacted functional group present in a coupling agent residue in the block copolymer or the hydrogenated block copolymer prior to the step (c), in which the number of functional groups derived from the coupling agent in the hydrogenated block copolymer recovered in the step (c) is 1.5 or less per block copolymer molecule; a hydrogenated block copolymer obtained by the method; and a composition containing the hydrogenated block copolymer.Type: ApplicationFiled: June 3, 2010Publication date: May 31, 2012Applicant: Kuraray Co., Ltd.Inventors: Takaaki Nishikawa, Yosuke Jogo, Nobuhiro Moriguchi, Mizuho Maeda
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Publication number: 20120125232Abstract: This disclosure relates to bituminous compositions and methods of producing the same. More particularly, the disclosure relates to the production of bituminous compositions formulated with performance-graded bitumen-containing solvent-free bitumen emulsions which exhibit controllable, temperature-dependent interfacial rheology. When employed in paving applications, these bituminous compositions develop adhesive strength and load-bearing strength properties at rates comparable to traditional hot mix paving compositions and at rates faster than traditional cold mix paving compositions.Type: ApplicationFiled: December 2, 2011Publication date: May 24, 2012Applicant: MEADWESTVACO CORPORATIONInventors: Everett Crews, Tom Girardeau, Iain Jack
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Publication number: 20120130009Abstract: Vulcanizates with desirable properties can be obtained from compounds incorporating polymers that include hydroxyl group-containing diphenylethylene-type functionalities. The functionalities can be incorporated by using any or all of appropriate initiators, monomers and optional terminating compounds. Such polymers exhibit excellent interactivity with both conventional and non-conventional fillers.Type: ApplicationFiled: June 30, 2010Publication date: May 24, 2012Inventors: Zengquan Qin, Yuan-Yong Yan, Xiao-Dong Pan
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Patent number: 8183327Abstract: The present invention provides: a rubber composition for a tire having favorable productivity, excellent heat aging resistance and abrasion resistance, and excellent fuel economy; and a pneumatic tire using the rubber composition. The rubber composition contains neither soluble sulfur nor insoluble sulfur, and contains diene rubber, 1-15 parts by mass of compound 1 represented by formula (1) and 0.1-5 parts by mass of compound 2 represented by formula (2), per 100 parts by mass of the diene rubber, and the amount ratio of compound 1 to compound 2 (compound 1/compound 2) is 1-8. wherein R1-R4 are the same or different, and represent C1-20 alkyl, C6-20 aryl, or C7-20 aralkyl, and n represents an integer of 1-12; wherein R5-R7 are the same or different, and represent C5-12 alkyl, x and y are the same or different, and represent an integer of 2-4, and m represents an integer of 0-10.Type: GrantFiled: September 23, 2010Date of Patent: May 22, 2012Assignee: Sumitomo Rubber Industries, Ltd.Inventor: Kazuo Hochi
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Publication number: 20120116002Abstract: A sulfur-containing cycloaliphatic compound, useful as a crosslinker for filled sulfur-vulcanizable elastomer compositions, is represented by the general formula: G[-CaH2a—S[C(?O)]bR]n wherein G is selected from the group consisting of: saturated, monocyclic aliphatic group of valence n containing from 5 to 12 carbon atoms and optionally containing at least one halogen, and saturated monocyclic silicone [RSiO—]n[R2SiO—]p group of valence n; wherein each R independently is a hydrogen or monovalent hydrocarbon of up to 20 carbon atoms; each occurrence of subscripts a and b independently is an integer wherein a is 2 to 6 and b is 0 or 1; p is an integer of from 0 to 3; and, n is an integer of from 3 to 6, with the provisos that when b is 0, R is a hydrogen atom, and when G is a non-halogenated, saturated monocyclic aliphatic group of 6 carbon atoms, n cannot be 3.Type: ApplicationFiled: January 17, 2012Publication date: May 10, 2012Applicant: MOMENTIVE PERFORMANCE MATERICALS INC.Inventors: Richard W. Cruse, William Michael York, Carla Recker, Thomas Kramer, Katharina Herzog
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Publication number: 20120103670Abstract: Articles comprising a composition comprising a polymeric binder and at least one carbonaceous filler, wherein the article has a compositional gradient such that the concentration of the filler is increased or decreased in at least one direction in the article. Methods for their preparation and structures comprising the articles are also described.Type: ApplicationFiled: June 30, 2009Publication date: May 3, 2012Applicant: VORBECK MATERIALS CORP.Inventor: John S. Lettow
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Publication number: 20120108736Abstract: A vulcanizable composition of matter comprising a rubber component, a filler, a curative for the rubber, where the rubber component includes a multi-modal polymer including at least two distinct peak molecular weights within a range defined by a lower limit of 80 kg/mole and an upper limit of 500 kg/mole.Type: ApplicationFiled: December 28, 2009Publication date: May 3, 2012Applicant: Bridgestone CorporationInventors: Zhong-Ren Chen, Kevin McCauley, Mark Smale, Michael W. Hayes, Steven Luo
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Publication number: 20120108737Abstract: The method for producing a modified conjugated diene based (co)polymer, according to the present invention comprises a step of reacting a conjugated diene based (co)polymer with a metal halide compound to obtain a modified conjugated diene based (co)polymer, the conjugated diene based (co)polymer having a weight-average molecular weight of 150,000 to 2,000,000 and being obtained by bonding, to a polymer having at least a conjugated diene unit, an alkoxysilyl group and an optionally protected primary amino group. The method can satisfactorily produce a conjugated diene based (co)polymer which has a high Mooney viscosity, excellent shape stability and good processability.Type: ApplicationFiled: January 10, 2012Publication date: May 3, 2012Applicant: JSR CORPORATIONInventors: Masahiro Shibata, Takaomi Matsumoto, Tamotsu Nagaoka, Takuo Sone, Toshihiro Tadaki
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Publication number: 20120090781Abstract: Co-agglomerated dispersions and methods for their preparation are described herein. The co-agglomerated dispersions are prepared by co-agglomerating an anionic polymer dispersion and inert particles. The polymers for use in the co-agglomerated dispersions are derived from one or more monomers including at least one conjugated diene monomer. The inert particles have a particle size of less than 2 ?m. Also described herein is an aqueous dispersion including co-agglomerated particles formed from at least one polymer and at least one inert material. Further described herein are foamed polymers, latex-based adhesives, waterproofing membranes, sound absorbing coatings, and methods for their preparation and use.Type: ApplicationFiled: July 1, 2010Publication date: April 19, 2012Applicant: BASF SEInventor: Koichi Takamura
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Publication number: 20120083562Abstract: Polymer-filler coupling compounds with the formula B-A-Sx—N are claimed. In these compounds, B is an azaheterocyclic oxygen or sulfur containing moiety, or an allyltin moiety; Sx is a polysulfide, where x is between 2 and about 10; A is a linking atom or group that forms a bridge between B and Sx; and N is a blocking group. Sx can be a disulfide. N can be a conventional blocking group or other group such as -A-B. Methods for using the polymer-filler coupling compounds to modify polymers containing unsaturated carbon-carbon bonds and promote filler dispersion are also claimed. Additionally, vulcanizable rubber compositions containing the polymer-filler coupling compounds and methods for making vulcanized rubber compositions using the polymer-filler coupling compounds are also claimed.Type: ApplicationFiled: November 11, 2011Publication date: April 5, 2012Inventors: Yasuo Fukushima, William L. Hergenrother, Russell W. Koch
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Publication number: 20120083571Abstract: A rubber composition, comprising a rubber component, and a carbon black, the carbon black satisfying the dibutyl phthalate (DBP) absorption number [unit: mL/100 g] of the carbon black is from 90 to 180, the difference of the BET specific surface area (BET5) [unit: m2/g] of the carbon black from the external specific surface area (STSA) [unit: m2/g] thereof satisfies the following: 5<(BET5)?(STSA)<12, the ratio between the Stokes diameter (Dst) of the carbon black and the Stokes diameter distribution (?D?50 (half band width)) thereof satisfies the following: 0.70<the ratio of (?D?50)/(Dst)<1.10, and the ratio between the BET specific surface area (BET5) [unit: m2/g] of the carbon black and the iodine adsorption number (IA) [unit: mg/g] thereof satisfies the following: 1.05<the ratio of (BET5)/(IA)<1.35.Type: ApplicationFiled: August 16, 2011Publication date: April 5, 2012Applicant: TOYO TIRE & RUBBER CO., LTD.Inventor: Shinya Hasegawa
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Publication number: 20120082791Abstract: Waterborne, polymer based coating compositions for interior and exterior use on elastomeric substrates (such as tires) with one or more polymer latex resins (having one or more carboxylic acid groups) in an amount sufficient to provide polymer solids in an amount of from 5 to 50% by weight of the coating; optionally one or more coalescing agents in an amount effective to coalesce and fuse polymer particles of the polymer latex resin into a relatively stretchable film when cured; one or more defoaming agents in an amount effective to enhance foam dissipation prior to film formation; one or more coupling agents having a first reactive group which is capable of bonding with the one or more carboxylic acid groups and a second reactive group which is capable of bonding with an elastomers substrate. Also, a method for applying such compositions to elastomeric substrates, such as tires.Type: ApplicationFiled: September 20, 2011Publication date: April 5, 2012Inventor: Robert Richard Liversage
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Patent number: 8143344Abstract: The present invention is further directed to a method of producing a particulate composite of silica and elastomer comprising the steps of dispersing a diene based elastomer in a hydrophobic liquid to form an elastomer dispersion; mixing the elastomer dispersion with an aqueous solution of an alkali metal silicate to form a mixture; adding a precipitating agent to the mixture to precipitate a porous silica onto the dispersed elastomer to form a particulate composite of silica and elastomer comprising a porous silica shell at least partially surrounding a core of diene based elastomer; and optionally adding a separating agent to remove the hydrophobic liquid from the particulate composite.Type: GrantFiled: December 3, 2009Date of Patent: March 27, 2012Assignee: The Goodyear Tire & Rubber CompanyInventors: Georges Koster, Wolfgang Lauer
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Publication number: 20120059113Abstract: Vulcanizates with desirable properties can be obtained from compositions incorporating polymers that include hydroxyl group-containing aryl functionalities, silica or other particulate filler(s) that contain or include oxides of silicon and a compound that includes multiple hydroxyl groups. The compound can act to disrupt the interactivity of the functionalities and the particulate filler particles during processing of the composition, thereby facilitating processing of the composition.Type: ApplicationFiled: August 11, 2011Publication date: March 8, 2012Inventors: Xiao-Dong Pan, Zengquan Qin, Yuan-Yong Yan, Jessica Kurasch
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Publication number: 20120053278Abstract: A process for the anti-sticking treatment of polymer pellets comprising: a) pelletizing the polymer in the presence of cooling water; b) drying the polymer pellets by means of a centrifugal drier, wherein in step b) an aqueous composition comprising an anti-sticking agents is metered inside said centrifugal drier.Type: ApplicationFiled: November 10, 2010Publication date: March 1, 2012Applicant: BASELL POLIOLEFINE ITALIA S.R.L.Inventors: Decio Malucelli, Marco Consalvi
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Publication number: 20120046410Abstract: A process for forming a tire component, the process comprising the steps of introducing a vulcanizable polymer, a curative, a first carbon black characterized by an iodine adsorption number, per ASTM D1510, that is greater than 60 g/kg, and a second carbon black characterized by an iodine adsorption number, per ASTM D1510, that is less than 60 g/kg to form a vulcanizable composition, fabricating a tire component from the vulcanizable composition, and curing the tire component.Type: ApplicationFiled: October 28, 2011Publication date: February 23, 2012Inventors: Terrence E. HOGAN, Christopher G. Robertson, Alberto Scurati
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Publication number: 20120046413Abstract: A pneumatic tire obtained by using a rubber composition containing 100 parts by mass of a rubber component comprising at least one of natural rubber and diene base synthetic rubber, 20 to 150 parts by mass of precipitated silica as a filler in which a cetyltrimethylammonium bromide-adsorbing specific surface area (CTAB) (m2/g) and the mode Aac in diameters (nm) of primary aggregates determined by acoustic measurement of particle size distribution satisfy equation (A) shown below and in which a difference between an ignition loss (mass reduction % when heated at 750° C. for 3 hours) and a heating loss (mass reduction % when heated at 105° C. for 2 hours) satisfies equation (B) shown below and 1 to 25 parts by mass of at least one specific sulfur-containing silane compound as a silane coupling agent: Aac??0.Type: ApplicationFiled: April 28, 2010Publication date: February 23, 2012Applicant: BRIDGESTONE CORPORATIONInventor: Naohiro Sasaka
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Publication number: 20120041128Abstract: The present invention relates to a precipitated silica for elastomers and, more particularly, to a new highly dispersible and highly reinforcing precipitated silica for elastomers. The invention further provides the process for its production and rubber products made therefrom.Type: ApplicationFiled: October 11, 2009Publication date: February 16, 2012Applicant: Dimona Silica IndustriesInventor: Raisa Avgustovna Kosso
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Publication number: 20120041129Abstract: The invention relates to rubber mixtures containing silane and having possibly functionalized diene rubbers and microgels, to a method for the production thereof, and to the use thereof to produce wet slipping resistant and low-rolling resistance motor vehicle tire treads having high abrasion resistance.Type: ApplicationFiled: January 19, 2010Publication date: February 16, 2012Applicant: LANXESS DEUTSCHLAND GMBHInventors: Norbert Steinhauser, Werner Obrecht, David Hardy, Thomas Gross
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Publication number: 20120034479Abstract: An endless belt for an electrophotographic device having high degrees of flexibility and wear resistance in a surface portion of the elastic layer is provided. The endless belt for an electrophotographic device, includes a base layer, and an elastic layer which is formed on a surface of the base layer, by using a rubber composition including at least one rubber material and at least one inorganic filler in which the elastic layer has 40-75% by mass of a total organic component, and a product P of an indentation Young's modulus (MPa) ? and a fracture strain (%) ? that is within a range of 6000-50000.Type: ApplicationFiled: August 5, 2011Publication date: February 9, 2012Applicant: TOKAI RUBBER INDUSTRIES, LTD.Inventors: Teruyoshi Kimpara, Shinichi Natsume, Shigeki Kanda, Tsukasa Fujita, Satoshi Endo
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Patent number: 8106130Abstract: A modified conjugated diene polymer comprises a modifying group based on a low molecular weight compound having two or more tertiary amino groups and one or more alkoxysilyl groups in a molecule which bonds to a conjugated diene polymer obtained by polymerization of a conjugated diene compound or a conjugated diene polymer obtained by copolymerization of a conjugated diene compound and an aromatic vinyl compound. The process for producing the modified conjugated diene polymer comprises the steps of: polymerizing a conjugated diene compound or copolymerizing a conjugated diene compound and an aromatic vinyl compound in a hydrocarbon solvent using an alkali metal initiator and/or an alkaline earth metal initiator; and reacting active terminals of the resulting polymer with a low molecular weight compound having two or more tertiary amino groups and one or more alkoxysilyl groups in the molecule.Type: GrantFiled: July 19, 2007Date of Patent: January 31, 2012Assignee: Asahi Kasei Chemicals CorporationInventors: Ryoko Fukuoka, Haruo Yamada, Norifusa Ishimura
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Publication number: 20120010356Abstract: The present invention relates to improved compositions of SSBR rubber. The improved compositions exhibit sufficient or improved balance of characteristics such as rolling resistance, HBU, abrasion, grip, and/or tear. The compositions may be made in an efficient, cost-effective manner.Type: ApplicationFiled: February 24, 2010Publication date: January 12, 2012Inventors: Evemarie Hamann, Hagen Thomas Bartossek, Joachim Kiesekamp
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Publication number: 20110319533Abstract: The present disclosure relates to a concentrated binder having a very high polymer content comprising a soft aromatic petroleum base, optionally a bituminous base and at least one polymer characterized in that the polymer content in the concentrated binder is greater than or equal to 20% by weight, preferably greater than or equal to 25% by weight, and the use thereof in the preparation of a dilute bitumen/polymer binder for the fields of road applications, in particular in the manufacture of road binders, and in the fields of industrial applications.Type: ApplicationFiled: June 25, 2008Publication date: December 29, 2011Applicant: TOTAL RAFFINAGE MARKETINGInventors: Gilles Gauthier, Guillaume Dulac
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Patent number: 8071682Abstract: A method for producing a conjugated diene polymer is provided that includes a step of polymerizing a conjugated diene-containing monomer in a hydrocarbon solvent in the presence of an alkali metal catalyst, thus giving a polymer having a catalyst-derived alkali metal at one terminus of a polymer chain comprising a conjugated diene-based monomer unit, and a step of reacting the polymer obtained in the step of polymerizing and a trialkoxysilane compound represented by the formula below. (In the formula, M denotes an oxygen atom or a sulfur atom, R1, R2, and R3 independently denote an alkyl group having 1 to 4 carbon atoms, m denotes an integer of 1 to 5, and n denotes an integer of 0 to 5.Type: GrantFiled: June 17, 2008Date of Patent: December 6, 2011Assignee: Sumitomo Chemical Company, LimitedInventors: Naoaki Maeda, Mayumi Oshima, Katsunari Inagaki
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Patent number: 8071676Abstract: A primary modified polymer composed of (1) a hydrogenated polymer obtained by hydrogenating at least one non-hydrogenated polymer selected from the group consisting of polymers comprising conjugated diene monomer units and copolymers comprising conjugated diene monomer units and vinyl aromatic monomer units and (2) groups of a primary modifier having a functional group which are bonded to the polymer (1), which has a specific vinyl aromatic monomer unit content, a specific vinyl aromatic polymer block content, a specific weight-average molecular weight, and a specific degree of hydrogenation of the double bonds of conjugated diene monomer units; a secondary modified polymer obtained by reacting a primary modified polymer composed of (?) a base polymer and (?) groups of a primary modifier having a functional group which are bonded to the polymer (?) with a secondary modifier; and compositions comprising the primary or secondary modified polymer and at least one other component.Type: GrantFiled: December 22, 2008Date of Patent: December 6, 2011Assignee: Asahi Kasei Chemicals CorporationInventors: Takaaki Matsuda, Shigeki Takayama, Toshinori Shiraki, Shigeo Nakajima, Yasuhiro Kusanose
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Publication number: 20110282001Abstract: The present invention relates to functionalised diene rubbers and their production, to rubber mixtures, comprising these functionalised diene rubbers, and to their use for the production of rubber vulcanisates, which serve in particular for the production of highly reinforced rubber mouldings. Particular preference is given to the use in the production of tyres which have particularly low rolling resistance, and particularly high wet slip resistance and abrasion resistance.Type: ApplicationFiled: October 15, 2009Publication date: November 17, 2011Applicant: LANXESS DEUTSCHLAND GMBHInventors: Norbert Steinhauser, Thomas Gross