Interpolymer With At Least One Aromatic Hydrocarbon Monomer Patents (Class 524/575)
  • Patent number: 10647840
    Abstract: A thermoplastic composition includes from about 50 wt. % to about 90 wt. % of a polymeric base resin and from about 10 wt. % to about 50 wt. % of a low dielectric constant (Dk)/low dissipation factor (Df) glass fiber component. The low Dk/low Df glass fiber component has a Dk of less than about 5.0 at a frequency of from 1 MHz to 1 GHz and a Df of less than about 0.002 at a frequency of from 1 MHz to 1 GHz. In certain aspects the thermoplastic composition has a Dk that is at least about 0.1 lower than a substantially identical reference composition that does not include the low Dk/low Df glass fiber component.
    Type: Grant
    Filed: May 25, 2017
    Date of Patent: May 12, 2020
    Assignee: SABIC Global Technologies B.V.
    Inventors: Jian Wang, Shijie Song, Zhenke Wei, Qin Wang, Mian Dai
  • Patent number: 10604646
    Abstract: A thermoplastic composition includes from about 50 wt. % to about 90 wt. % of a polymeric base resin and from about 10 wt. % to about 50 wt. % of a low dielectric constant (Dk)/low dissipation factor (Df) glass fiber component. The low Dk/low Df glass fiber component has a Dk of less than about 5.0 at a frequency of from 1 MHz to 1 GHz and a Df of less than about 0.002 at a frequency of from 1 MHz to 1 GHz. In certain aspects the thermoplastic composition has a Dk that is at least about 0.1 lower than a substantially identical reference composition that does not include the low Dk/low Df glass fiber component.
    Type: Grant
    Filed: May 25, 2017
    Date of Patent: March 31, 2020
    Assignee: SABIC Global Technologies B.V.
    Inventors: Jian Wang, Shijie Song, Zhenke Wei, Qin Wang, Mian Dai
  • Patent number: 10501584
    Abstract: Disclosed herein are terminal-functionalized polymers functionalized with silicon-containing functionalizing agents, rubber compositions including the polymers, methods for improving the cold flow resistance of a polymer, methods for improving the filler dispersion of a silica-filled rubber composition, and processes for preparing the terminal-functionalized polymer.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: December 10, 2019
    Assignee: Bridgestone Corporation
    Inventor: Yuan-Yong Yan
  • Patent number: 10494513
    Abstract: The present invention provides a rubber composition excellent in grip performance, durability of grip performance, and abrasion resistance. Also provided is a pneumatic tire formed from the rubber composition. The present invention relates to a rubber composition exhibiting a temperature dependence curve of tan ? with a half-width defined by Equation (1) of 45 or less as measured at a strain of 0.1% and a frequency of 10 Hz, the rubber composition having a temperature dependence of hardness defined by Equation (2) of 4.3 or less, the temperature dependence curve having a peak temperature of 10° C. or lower, half-width=(temperature at half-peak height on high temperature side)?(temperature at half-peak height on low temperature side),??Equation (1): temperature dependence of hardness=(hardness index at 0° C.)/(hardness index at 100° C.).
    Type: Grant
    Filed: April 4, 2018
    Date of Patent: December 3, 2019
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Kensuke Washizu
  • Patent number: 10449813
    Abstract: A self-inflating tire assembly includes an air tube mounted within a tire sidewall or chafer groove. The air tube is in contacting engagement with opposite angled groove surfaces surrounding the air tube. A segment of the air tube is flattened from an expanded diameter to a flat diameter by bending and compression of the groove in a rolling tire footprint to force air evacuated from the flattened segment along a tube air passageway. A coverstrip overlays and seals the groove and provides an abrasion resistant surface on the exterior of the tire. The coverstrip is made from a vulcanizable rubber composition comprising from 50 to 80 phr of a polybutadiene, from 50 to 20 phr of natural rubber, and from 0.1 to 5 phr of a vulcanization modifier.
    Type: Grant
    Filed: January 26, 2017
    Date of Patent: October 22, 2019
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Jungmee Kang, Byoung Jo Lee, Daniel Vojtko, Dinesh Chandra, Betul Buehler, Benjamin Isaiah Garn
  • Patent number: 10183892
    Abstract: The invention relates to compositions of cement and concrete having properties of resistance, modulus and expansion which are significantly improved, using an additive for cement based on thermoplastic styrene-butadiene-styrene (SBS) copolymer in cationic latex, when compared with non-modified cement and concrete references.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: January 22, 2019
    Assignee: DYNASOL ELASTOMEROS, S.A. DE C.V.
    Inventor: Gabriel Hernández Zamora
  • Patent number: 10118974
    Abstract: Disclosed are a modified conjugated diene-based polymer represented by a specific Chemical Formula and a method of preparing the same.
    Type: Grant
    Filed: November 3, 2015
    Date of Patent: November 6, 2018
    Assignee: LG Chem, Ltd.
    Inventors: Hae-Sung Sohn, No-Ma Kim, He-Seung Lee
  • Patent number: 10087292
    Abstract: Provided is a method for producing a rubber composition that includes a rubber component (A) including natural rubber, at least one filler (B) selected from an inorganic filler and carbon black, and a monohydrazide compound (C) supported on a solid. The monohydrazide compound (C) is represented by general formula (I): R—CONHNH2, where R represents an alkyl group having from 1 to 30 carbon atoms, a cycloalkyl group having from 3 to 30 carbon atoms, or an aryl group. The method comprises compounding in an optional preliminary compounding stage and a plurality of compounding stages, and adding the monohydrazide compound (C) supported on the solid and kneading in the preliminary compounding stage and/or a first compounding stage. Also provided is a rubber composition produced with this method.
    Type: Grant
    Filed: September 11, 2015
    Date of Patent: October 2, 2018
    Assignee: BRIDGESTONE CORPORATION
    Inventors: Aya Saiki, Toshihiro Uchiyama
  • Patent number: 10072037
    Abstract: The method is for separation of lignin from original black liquor (BLIN) that has a first precipitation stage (PR) for precipitation of lignin by a first acidification using acidifier AC1, preferably using CO2, at alkaline conditions, then separating a lignin cake with subsequent suspension of the lignin cake in a strong acid in order to leach our metals from the lignin followed by dewatering and obtaining a clean lignin product LP. The process further is improved by intensified hydrolysis of lignin cake such that most of the carbohydrates are broken down to dissolvable monomers that could be separated from the lignin in the filtrate from a filtering stage subsequent to the hydrolysis. The improved hydrolysis could reduce as much as 90% of the carbohydrate content using a moderately increased temperature and increased charge of acidifier while avoiding any larger lignin yield losses.
    Type: Grant
    Filed: July 13, 2017
    Date of Patent: September 11, 2018
    Assignee: VALMET AB
    Inventor: Panu Tikka
  • Patent number: 10059780
    Abstract: Provided is a method for producing rubber particles with a reduced coagulation tendency. The present invention relates to a method for producing rubber particles with a reduced coagulation tendency, the method including a step of performing protein synthesis in the presence of both rubber particles and a cell-free protein synthesis solution containing an mRNA coding for a rubber elongation factor (REF) family protein to bind the REF family protein to the rubber particles.
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: August 28, 2018
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Haruhiko Yamaguchi, Yukino Inoue, Kazuhisa Fushihara, Seiji Takahashi, Satoshi Yamashita, Toru Nakayama
  • Patent number: 9868850
    Abstract: 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 group or compound that can act to covalently bond the filler particles and the polymer. The group can be provided as a substituent of the filler particle, or a discreet compound can be provided in the composition.
    Type: Grant
    Filed: February 16, 2015
    Date of Patent: January 16, 2018
    Assignee: Bridgestone Corporation
    Inventors: Yuan-Yong Yan, Zengquan Qin, Xiao-Dong Pan
  • Patent number: 9790289
    Abstract: The present invention is directed to a functionalized elastomer comprising the reaction product of a living elastomeric polymer and a polymerization terminator of formula I, wherein the functionalized elastomer comprises repeat units of a diene monomer and optionally a vinyl aromatic monomer, and the functionalized elastomer comprises at least 92 percent by weight of cis 1,4 microstructure content based on the weight of the polydiene content of the functionalized elastomer wherein R1 is C1 to C4 linear alkyl, or C1 to C4 branched alkanediyl; X1, X2, X3 are independently O, S, or a group of formula (II) or (III) where R2 is C1 to C18 linear or branched alkyl; Z is R3, —OR4, or —R5—X4; R3, R4 are independently C1 to C18 linear or branched alkyl; R5 is C1 to C18 alkanediyl or dialkyl ether diyl; X4 is halogen or a group of structure IV, V, VI, VII or VIII wherein R6, R7, R8, R9, and R10 are independently H or C1 to C8 alkyl; R11 is C2 to C8 alkanediyl; R12 and R13 are independen
    Type: Grant
    Filed: August 30, 2016
    Date of Patent: October 17, 2017
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Liqing Ma, Margaret McGuigen Vielhaber
  • Patent number: 9725527
    Abstract: Disclosed are a modified conjugated diene-based polymer represented by specific Chemical Formula and a method of preparing the same.
    Type: Grant
    Filed: October 22, 2015
    Date of Patent: August 8, 2017
    Assignee: LG Chem, Ltd.
    Inventors: Ro-Mi Lee, No-Ma Kim
  • Patent number: 9611364
    Abstract: A method of making a polymer with stable Mooney viscosity is described. A conjugated diolefin is reacted in a hydrocarbon solvent in the presence of an initiator to form a polymer. After forming the polymer, alkoxysilane terminal functionalizing groups are bonded to the polymer. An alkoxysilane stabilizing agent is then added to the polymer in the presence of hydrocarbon oil. The polymer is then desolvatized, resulting in a polymer with stable Mooney viscosity, even over prolonged periods of time. Compositions and articles containing the polymer are also described.
    Type: Grant
    Filed: June 6, 2013
    Date of Patent: April 4, 2017
    Assignee: Firestone Polymers, LLC
    Inventors: Mark N. DeDecker, James H. Pawlow, Joseph P. Padolewski, Kenji Nakatani
  • Patent number: 9469158
    Abstract: Provided is a thioester modified polymer, wherein a polymer having an intramolecular double bond is modified with at least one of thiocarboxylic acid and dithiocarboxylic acid. The above thioester modified polymer can be manufactured by allowing a polymer having an intramolecular double bond to react with thiocarboxylic acid, dithiocarboxylic acid or a metal salt thereof, and used to be compounded in a diene-based rubber. When this thioester modified polymer is compounded in a diene-based rubber, in particular a silica containing diene-based rubber, tensile strength and breaking elongation, in particular tensile strength and breaking elongation at a high temperature (100° C.), can be improved without decreasing modulus, hardness, exothermicity and the like. Therefore, the rubber composition having excellent thermal resistance and toughness can be effectively used as a rubber compound for forming a cap tread or a side tread of a pneumatic tire.
    Type: Grant
    Filed: December 6, 2013
    Date of Patent: October 18, 2016
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventor: Yasuke Tanabe
  • Publication number: 20150148478
    Abstract: Disclosed are substantially non-carcinogenic bio oil-derived residue compositions produced from the pyrolysis or thermo catalytic conversion of biomass, and their use as solvents in the production of tires.
    Type: Application
    Filed: November 25, 2013
    Publication date: May 28, 2015
    Applicant: KiOR, Inc.
    Inventors: Jeffrey C. Trewella, Vicente Sanchez
  • Publication number: 20150148459
    Abstract: The deposition of graphene is accomplished by various techniques that result in a change of the graphene's solubility in the liquid medium. The solubility change enables the deposition of the graphene onto the substrate. Once the graphene is deposited onto the substrate, the at least partially coated substrate may be separated from the liquid medium. The substrates may then serve as a carrier to deliver the graphene to a desired application.
    Type: Application
    Filed: June 5, 2013
    Publication date: May 28, 2015
    Inventors: Adam R. Pawloski, Gregory S. Bennett, Jeffrey Jacob Cernohous, Kent Kaske, Adam E. Szymanski
  • Publication number: 20150148479
    Abstract: The present invention is directed to a functionalized elastomer comprising the reaction product of a living anionic elastomeric polymer and a polymerization terminator of formula I wherein R1 is C1 to C4 linear alkyl, or C1 to C4 branched alkanediyl; X1, X2, X3 are independently O, S, or a group of formula (II) or (III) where R2 is C1 to C18 linear or branched alkyl; Z is R3, —OR4, or —R5—X4; R3, R4 are independently C1 to C18 linear or branched alkyl; R5 is C1 to C18 alkanediyl or dialkyl ether diyl; X4 is halogen or a group of structure IV, V, VI, VII or VIII wherein R6, R7, R8, R9, and R10 are independently H or C1 to C8 alkyl; R11 is C2 to C8 alkanediyl; R12 and R13 are independently H, aryl or C1 to C8 alkyl; Q is N or a group of structure IX wherein R14 is C1 to C8 alkyl.
    Type: Application
    Filed: August 4, 2014
    Publication date: May 28, 2015
    Inventor: Liqing Ma
  • Publication number: 20150133601
    Abstract: A method of making a polymer with stable Mooney viscosity is described. A conjugated diolefin is reacted in a hydrocarbon solvent in the presence of an initiator to form a polymer. After forming the polymer, alkoxysilane terminal functionalizing groups are bonded to the polymer. An alkoxysilane stabilizing agent is then added to the polymer in the presence of hydrocarbon oil. The polymer is then desolvatized, resulting in a polymer with stable Mooney viscosity, even over prolonged periods of time. Compositions and articles containing the polymer are also described.
    Type: Application
    Filed: June 6, 2013
    Publication date: May 14, 2015
    Applicant: Firestone Polymers, LLC
    Inventors: Mark N. DeDecker, James H. Pawlow, Joseph P. Padolewski, Kenji Nakatani
  • Publication number: 20150126657
    Abstract: The present invention includes a process for producing treated filler that includes (a) treating a slurry that includes untreated filler where the untreated filler has not been previously dried, with a treating composition that includes a treating agent, thereby forming a treated filler slurry, and (b) drying the treated filler slurry to produce treated filler. The treating agent can include a polymer having (i) at least one first group that interacts with the untreated filler and (ii) at least one second group that interacts with a rubber matrix into which the treated filler is incorporated. The present invention also is directed to treated filler prepared by the process, as well as rubber compounding compositions and tires including the treated filler.
    Type: Application
    Filed: October 7, 2014
    Publication date: May 7, 2015
    Inventors: Timothy Allen Okel, Peter Lawrence Votruba-Drzal, Justin Jonathan Martin, Raphael O. Kollah, Truman Wilt, Brian K. Rearick, Clint Steven Edelman, Linda K. Anderson, Feng Wang, Kurt G. Olson
  • Publication number: 20150104663
    Abstract: The invention concerns an olefinically unsaturated radial styrenic block copolymer having the general formula A-B—Y—(B-A)n wherein each A is independently a polymer block composed of at least 90 mol. % of an alkenyl aromatic hydrocarbon, each B is independently a polymer block composed of at least 90 mol. % of one or more conjugated dienes, Y is the remnant of a coupling agent, and n is an integer from 2 to 5. The invention is also an improved vulcanizer-free latex comprising water and the olefinically unsaturated radial styrenic block copolymer. Moreover, the invention concerns a process for preparing articles by coagulation dipping from the improved latex and dipped goods made from such latex.
    Type: Application
    Filed: October 9, 2014
    Publication date: April 16, 2015
    Applicant: KRATON POLYMERS U.S. LLC
    Inventors: Wouter DE JONG, Maarten TROMP
  • Patent number: 9006335
    Abstract: 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: Grant
    Filed: October 15, 2010
    Date of Patent: April 14, 2015
    Assignee: Bridgestone Corporation
    Inventors: Munenori Iizuka, Masashi Otsuki
  • Patent number: 8980987
    Abstract: This invention relates to a method for producing a modified conjugated diene rubber wherein the method involves: (a) a step in which a conjugated diene polymer having an alkali metal or alkaline earth metal active end and obtained by polymerizing a conjugated diene compound or by polymerizing a conjugated diene compound with an aromatic vinyl compounds is reacted with a first alkoxysilane compound which has an alkoxysilyl group having two or more alkoxy groups and has a group protected by a protecting group wherein deprotection is possible to obtain a modified conjugated-diene polymer having an alkoxysilyl group; and (b) a step in which the modified conjugated-diene polymer is reacted with a second alkoxysilane compound which has an alkoxysilyl group.
    Type: Grant
    Filed: November 28, 2011
    Date of Patent: March 17, 2015
    Assignee: JSR Corporation
    Inventors: Ryouji Tanaka, Naoya Nosaka
  • Patent number: 8981000
    Abstract: A polymer has at least the following characteristics: (a) a block styrene content containing 4 to 6 styrene units from about 27 to about 50 weight percent based on total styrene content in the polymer; (b) a vinyl content from about 30 to about 80 weight percent based on total amount of polymerized 1,3-butadiene; and (c) a styrene content from about 40 to about 70 weight percent based on total weight of polymer. Processes for the polymerization of such a polymer, compositions containing such a polymer, and articles containing at least one component formed from such a composition are described.
    Type: Grant
    Filed: March 1, 2012
    Date of Patent: March 17, 2015
    Assignee: Styron Europe GmbH
    Inventors: Evemarie Hamann, Silvia Valenti, Karin Schmiedel
  • Publication number: 20150059606
    Abstract: An object of the present invention is to provide a relief printing plate precursor for laser engraving that is excellent in rinsing properties for engraving residue and engraving sensitivity and can give a sharp engraved shape. Disclosed is a relief printing plate precursor for laser engraving comprising a relief-forming layer formed of a resin composition for laser engraving, or a crosslinked relief-forming layer obtained by crosslinking the relief-forming layer formed of the resin composition for laser engraving, wherein the resin composition for laser engraving comprises a binder polymer as Component A, and carbon black of which pH is higher than 6 and an average particle size when being dispersed into water is equal to or less than 500 nm as Component B.
    Type: Application
    Filed: August 28, 2014
    Publication date: March 5, 2015
    Applicant: FUJIFILM CORPORATION
    Inventor: Yuichi YASUHARA
  • Patent number: 8962730
    Abstract: The present invention is directed to a self-healing rubber composition comprising a functionalized elastomer comprising: a polymeric backbone chain derived from a monomer comprising at least one conjugated diene monomer and optionally at least one vinyl aromatic monomer; and a functional group bonded to the backbone chain, the functional group comprising a multidentate ligand capable of complexing with a metal ion; and a partitioned metal ion. The invention is further directed to a pneumatic tire comprising the self-healing rubber composition.
    Type: Grant
    Filed: November 27, 2012
    Date of Patent: February 24, 2015
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Ralf Mruk, Christian Jean-Marie Kaes, Robert Fokko Roskamp
  • Patent number: 8962745
    Abstract: 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: Grant
    Filed: December 27, 2011
    Date of Patent: February 24, 2015
    Assignee: Bridgestone Corporation
    Inventors: Terrence E. Hogan, Xiao-Dong Pan, Kenji Nakatani, Ryota Tamate
  • Patent number: 8962738
    Abstract: A coating composition comprising a hardenable film-former and at least 0.5 weight percent of an oxidizing agent sufficient to decolorize a stain on the film-former is disclosed, wherein the oxidizing agent comprises hydrogen peroxide, hypochlorite, and organo-chlorine bleaches and will at least partially decolorize a plurality of stains when applied to the hardened coating, allowed to stand for one hour at room temperature, and evaluated by visual observation of the stain under average overhead fluorescent illumination. The oxidizing agent is not consumed as a catalyst or initiator to polymerize or otherwise cause a reaction in the floor coating before it is applied and before it has hardened. A composition of the invention may include from about 0.8 to about 5 weight percent oxidizing agent and the film-former forms a hardened film resistant to rinsing with tap water.
    Type: Grant
    Filed: August 30, 2011
    Date of Patent: February 24, 2015
    Assignee: Ecolab USA Inc.
    Inventors: Kim R. Smith, Erik C. Olson
  • Patent number: 8957130
    Abstract: Styrene-acrylic dispersants for use in pigment dispersions have lower viscosities than benchmark formulations such as nitrocellulose, dimer-acid based polyamides, and thermoplastic polyurethanes, prepared under otherwise identical conditions. Lower viscosities allow for the preparation of similarly viscous dispersions and inks with the styrene-acrylics when compared to traditional dispersants, at either (a) lower solvent levels, or if solvent levels are to be maintained, (b) higher pigment and solids loadings.
    Type: Grant
    Filed: July 14, 2010
    Date of Patent: February 17, 2015
    Assignee: BASF SE
    Inventors: Gary A. Deeter, Chien Hsu, Timothy D. Klots
  • Patent number: 8952101
    Abstract: For a tire excellent in strength, low-heat buildup property, wet grip property, and driveability, and a rubber composition and a conjugated diene rubber for the tire, a conjugated diene rubber of the present invention includes 5 wt % or more of a structure that 3 or more conjugated diene polymer chains are bound via a denaturing agent, obtained by reaction of each chain and the agent, each chain being that at least one of terminals is an isoprene block having 70 wt % or more of an isoprene monomer unit, and the other is an active terminal, the agent having, per molecule, at least one of an epoxy group(s) and a hydrocarbyloxysilyl group(s), and being that a total number of the epoxy group(s) and hydrocarbyloxy groups in the hydrocarbyloxysilyl group(s) per molecule is 3 or more.
    Type: Grant
    Filed: February 22, 2011
    Date of Patent: February 10, 2015
    Assignee: Zeon Corporation
    Inventors: Tatsuo Sasajima, Takeshi Karato, Takeshi Sugimura
  • Patent number: 8946349
    Abstract: A rubber composition that can be used in applications such as automotive tires and can improve the fuel efficiency performance and driving stability of automobiles and the like, a method for producing a rubber composition, and a tire using the same are provided.
    Type: Grant
    Filed: August 10, 2011
    Date of Patent: February 3, 2015
    Assignee: JSR Corporation
    Inventors: Koji Okada, Ryoji Tanaka, Yoshiyuki Udagawa
  • Publication number: 20150031821
    Abstract: The present invention provides a rubber composition comprising, as blended, a rubber component (A), an amino acid derivative (B) and a filler containing an inorganic filler (C), and further containing, as incorporated therein, at least one selected from sulfur and a sulfur compound. The vulcanization rate of the rubber composition is accelerated and the low-heat-generation property thereof is excellent.
    Type: Application
    Filed: February 26, 2013
    Publication date: January 29, 2015
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Takeshi Shiono, Takumi Toda, Satoshi Horie
  • Patent number: 8937130
    Abstract: A conjugated diene rubber of the present invention is prepared from conjugated diene polymer chains, wherein the conjugated diene polymer chains each has an active end at one end and an isoprene block at least at the other end, the isoprene block contains 70 wt % or more isoprene monomer units, and the active ends of at least part of the conjugated diene polymer chains are modified with a compound having a >C?O group as a functional group. This provides (i) a tire that has an excellent strength, excellent low-heat buildup property, and excellent wet grip property and (ii) a rubber composition and a conjugated diene rubber that are suitably used to produce the tire.
    Type: Grant
    Filed: December 14, 2011
    Date of Patent: January 20, 2015
    Assignee: Zeon Corporation
    Inventors: Tatsuo Sasajima, Takeshi Karato, Takeshi Sugimura
  • Patent number: 8933165
    Abstract: The present invention related to a method for producing a modified conjugated diene-based polymer, the method comprising a step of reacting a conjugated diene-based polymer with an organometallic compound, and a step of reacting the resulting product and a compound containing a nitrogen atom and a carbonyl group.
    Type: Grant
    Filed: September 24, 2013
    Date of Patent: January 13, 2015
    Assignee: Sumitomo Chemical Company, Limited
    Inventor: Mana Fujii
  • Patent number: 8927644
    Abstract: A polymer having at least the following characteristics: (a) a block styrene content with more than 4 consecutive styrene units from about 40 to about 70 weight percent based on total styrene content in the polymer; (b) a vinyl content from about 25 to about 80 weight percent based on total amount of polymerized 1,3-diene; (c) a styrene content from about 20 to about 75 weight percent based on total weight of polymer; and (d) a molecular weight distribution (Mw/Mn) of 1.5 or less.
    Type: Grant
    Filed: June 22, 2012
    Date of Patent: January 6, 2015
    Assignee: Styron Europe GmbH
    Inventors: Evemarie Hamann, Silvia Valenti, Gabriele Holtz
  • Patent number: 8927645
    Abstract: A polymer having at least the following characteristics: (a) a block styrene content with more than 6 consecutive styrene units from about 15 to about 35 weight percent based on total styrene content in the polymer; (b) a vinyl content from about 25 to about 80 weight percent based on total amount of polymerized 1,3-diene; and (c) a styrene content from about 35 to about 75 weight percent based on total weight of polymer; and (d) a molecular weight distribution (Mw/Mn) of 1.5 or less.
    Type: Grant
    Filed: June 22, 2012
    Date of Patent: January 6, 2015
    Assignee: Styron Europe GmbH
    Inventors: Evemarie Hamann, Silvia Valenti, Gabriele Holtz
  • Publication number: 20140364559
    Abstract: A method of production of modified conjugated diene-based rubber comprising a steps of using, as a polymerization initiator, an alkali metalated aromatic compound which has three or more carbon atoms which are directly bonded to alkali metal atoms and aromatic rings in one molecule so as to polymerize a monomer which contains at least a conjugated diene compound and reacting a compound of the following general formula (I) with an active ends of the obtained polymer is provided. (In the general formula (I), any one of R1 and R10 to R18 is an atom or reactive group which can react with the active ends of said polymer or a hydrocarbon group which includes either of the same, the remaining among R1 and R10 to R18 and R2 to R9 are respectively independently a hydrogen atom, alkyl group, or aryl group, and “j”, “k”, “m”, and “n” are integers of 0 to 100.
    Type: Application
    Filed: December 27, 2012
    Publication date: December 11, 2014
    Applicant: Zeon Corporation
    Inventors: Takeshi Sugimura, Kazuya Ito
  • Publication number: 20140357749
    Abstract: 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: Application
    Filed: August 17, 2014
    Publication date: December 4, 2014
    Applicant: Amyris, Inc.
    Inventor: Derek James MCPHEE
  • Publication number: 20140357784
    Abstract: A modified conjugated diene polymer, which can be used as a raw material of a cross-linked polymer for automobile tires, is prepared by a method including a step of polymerizing a monomer having a conjugated diene compound etc. in the presence of a compound of formula (1) or (2) and an alkali metal compound to obtain a conjugated diene polymer, and a step of reacting the polymer and a compound of formula (3). In formulae (1) and (2), R1 is hydrocarbylene; Q is —N(-A1)- etc.; A1 is hydrocarbyl without active hydrogen atom and may have substituent(s). In formula (3), E is a functional group etc. which has no active hydrogen atom and is bound to R4 by an atom of N; R2 and R3 are hydrocarbyl groups; R4 is a hydrocarbylene group; and n is an integer of 0 to 2.
    Type: Application
    Filed: December 19, 2012
    Publication date: December 4, 2014
    Applicant: JSR CORPORATION
    Inventors: Hiroyuki Morita, Takeshi Yuasa, Koichiro Tani, Naoya Nosaka, Ryoji Tanaka, Koji Okada
  • Publication number: 20140343180
    Abstract: Prepare a thermoset polyurethane foam containing a brominated polymer with aliphatic bromine as a flame retardant.
    Type: Application
    Filed: December 11, 2012
    Publication date: November 20, 2014
    Inventors: Steven P. Crain, William G. Stobby, Ted A. Morgan, Daniel T. Youmans
  • Publication number: 20140336330
    Abstract: The present invention is directed to a pneumatic tire comprising a ground contacting tread, the tread comprising a rubber composition comprising a solution polymerized styrene-butadiene rubber having a bound styrene content of at least 36 percent by weight and a vinyl 1,2 content of less than 25 percent by weight; optionally, at least one additional diene based rubber; silica; a sulfur donor; a sulfenamide accelerator; at least one secondary accelerator selected from the group consisting of guanidines, dithiocarbamates and thiurams; and an ?,?-bis(N,N?-dihydrocarbylthiocarbamamoyldithio)alkane; wherein the zinc content of the rubber composition is less than 0.5 parts by weight, per 100 parts by weight of elastomer (phr) as Zn metal.
    Type: Application
    Filed: May 13, 2013
    Publication date: November 13, 2014
    Inventors: Nicola Costantini, Georges Marcel Victor Thielen, Frank Schmitz, Jerome Joel Daniel Delville, Christian Jean-Marie Kaes
  • Publication number: 20140329963
    Abstract: Disclosed are a modified conjugated diene-based polymer capable of providing a polymer composition improved in tan ? balance, a polymer composition containing the modified conjugated diene-based polymer and silica, and a process for producing the modified conjugated diene-based polymer. The modified conjugated diene-based polymer is obtained by melt-kneading a conjugated diene-based polymer and 0.01 to 2 parts by weight of a Bunte salt per 100 parts by weight of the conjugated diene-based polymer, in the presence of water whose amount is from 0.1 to 1,000 parts by weight per one part by weight of the Bunte salt.
    Type: Application
    Filed: July 17, 2014
    Publication date: November 6, 2014
    Inventor: Hisakatsu HAMA
  • Patent number: 8865829
    Abstract: There is disclosed a functionalized elastomer comprising the reaction product of a living anionic elastomeric polymer; and a polymerization terminator of formula I where R1, R2 and R3 are independently C1 to C8 alkyl or C1 to C8 alkoxy, with the proviso that at least two of R1, R2 and R3 are C1 to C8 alkoxy; R4 is C1 to C8 alkyl; Si is silicon; S is sulfur; and Z is R5 or of formula II where R5 is alkyl, aryl, alkylaryl or arylalkyl. There is further disclosed a rubber composition comprising the functionalized elastomer, and a pneumatic tire comprising the rubber composition.
    Type: Grant
    Filed: November 22, 2011
    Date of Patent: October 21, 2014
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Leena Nebhani, Michael Joseph Rachita
  • Publication number: 20140309363
    Abstract: A method for producing a conjugated diene polymer usable as a raw material of a crosslinked polymer which is used for use in tires of automobiles and can enhance low fuel consumption performance of automobiles is provided. A method for producing a modified conjugated diene polymer comprising a polymerization step in which monomer including a conjugated diene compound or monomer including a conjugated diene compound and an aromatic vinyl compound are polymerized in the presence of at least one compound selected from the group consisting of the following formulae (1) and (2) and an alkali metal compound or an alkaline earth metal compound to obtain a modified conjugated diene polymer. (In the formulae, A1 is a functional group which has a three-substituted hydrocarbylsilyl group; has at least one atom selected from the group consisting of N, P and S; has no active hydrogen and is bound to R1 by any one atom of the above N, P and S. R1 and R2 are hydrocarbylene groups.
    Type: Application
    Filed: August 29, 2012
    Publication date: October 16, 2014
    Applicant: JSR CORPORATION
    Inventors: Hiroyuki Morita, Takeshi Yuasa, Koichiro Tani, Naoya Nosaka, Ryouji Tanaka, Koji Okada
  • Publication number: 20140296424
    Abstract: The invention relates to a strippable adhesive composition, and it has the advantage of good stripability and coating. The invention also provides a strippable material and method for manufacturing the same and an electronic component and method for manufacturing the same.
    Type: Application
    Filed: March 17, 2014
    Publication date: October 2, 2014
    Applicant: CHI MEI CORPORATION
    Inventor: KUANG-CHIEH LI
  • Publication number: 20140288212
    Abstract: There is provided a carbon nanofiber aggregate capable of suppressing scatter and having excellent dispersibility and filling property in a thermoplastic resin. A carbon nanofiber aggregate has a maximum void volume P1 (cm3/g) at a pore diameter of 2,500 nm or more and 100,000 nm or less and a maximum void volume P2 (cm3/g) at a pore diameter of 6 nm or more and less than 2,500 nm in pore distribution data measured by mercury porosimetry. The maximum void volume P1 and the maximum void volume P2 satisfy a specific relationship.
    Type: Application
    Filed: October 12, 2012
    Publication date: September 25, 2014
    Inventors: Kazuya Nagata, Yoshiyuki Kashiwagi
  • Publication number: 20140261078
    Abstract: A modified toner based additive is a mixture of a toner powder and a second material selected from a group including a gelling clay, a reactive agent, an elastomer, a functional filler, a handling and agglomerating agent, a compatibilizer and mixtures thereof.
    Type: Application
    Filed: March 12, 2014
    Publication date: September 18, 2014
    Applicant: CLOSE THE LOOP TECHNOLOGIES PTY LTD.
    Inventor: Steve Morriss
  • Publication number: 20140272238
    Abstract: A water-shedding flashing is sized and shaped to drain water away from a building. The flashing includes an elongate flexible membrane including a matrix and hydrophobic material within the matrix. The hydrophobic material within the matrix is present at surfaces of the membrane in quantities to reduce surface adhesion of water on the elongate flexible membrane.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 18, 2014
    Applicant: MITEK HOLDINGS, INC.
    Inventor: Ronald P. Hohmann, JR.
  • Publication number: 20140275327
    Abstract: A composition for use as a wood-filler that includes at least two modified styrene butadiene latexes; at least one pH color indicator, wherein the pH color change indicator is operative to provide a visual indication that the wood filling composition is dry; and microspheres, wherein the microspheres further include glass or ceramic, and wherein the microspheres are operative to provide durability and stainability to the wood-filling composition.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Applicant: Elmer's Products, Inc.
    Inventors: Yogeshbhai PATEL, Van R. Foster
  • Patent number: 8835545
    Abstract: A rubber composition for use in tire treads including 100 parts by mass of a diene rubber and from 70 to 100 parts by mass of silica, wherein the diene rubber includes from 50 to 90 mass % of a terminal-modified styrene-butadiene rubber having a hydroxy group on an end of the molecule, and from 10 to 25 mass % of a butadiene rubber; the silica has a BET specific surface area of from 45 to 550 m2/g, a CTAB specific surface area of from 40 to 525 m2/g, a particle size distribution width Ld((d84?d16)/d50) of at least 0.91, and wherein V(d5-d50)/V(5-d100) is at least 0.66; and a durometer hardness of the rubber composition when measured at 20° C. is from 70 to 80.
    Type: Grant
    Filed: August 6, 2010
    Date of Patent: September 16, 2014
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventors: Masaki Sato, Takeshi Kiyohara