Butadiene Homopolymer Patents (Class 525/333.2)
  • Patent number: 9765233
    Abstract: The invention relates to a polyfunctional bio-based oligomer which is the reaction product of a) at least one epoxidized sucrose fatty acid ester resin; b) at least one ethylenically unsaturated acid selected from methacrylic acid, acrylic acid, crotonic acid, and mixtures thereof; c) at least one acid anhydride selected from acetic acid anhydride, acrylic acid anhydride, methacrylic acid anhydride, crotonic acid anhydride, and mixtures thereof; d) optionally, at least one catalyst; and e) optionally, at least one inhibitor. In a polyfunctional bio-based oligomer of the invention, the ratio of ethylenically unsaturated acid to acid anhydride ranges from 90:1 to 1:90; at least one epoxide group of the at least one epoxidized sucrose fatty acid ester resin is esterified by at least one ethylenically unsaturated acid; and at least one epoxide group of the at least one epoxidized sucrose fatty acid ester resin is esterified by at least one acid anhydride.
    Type: Grant
    Filed: April 21, 2016
    Date of Patent: September 19, 2017
    Assignee: NDSU RESEARCH FOUNDATION
    Inventors: Dean C. Webster, Arvin Yu
  • Patent number: 9127100
    Abstract: A method for preparing a functionalized polymer, the method comprising the steps of: (i) polymerizing monomer with a coordination catalyst to form a reactive polymer; and (ii) reacting the reactive polymer with a nitroso compound.
    Type: Grant
    Filed: December 10, 2013
    Date of Patent: September 8, 2015
    Assignee: Bridgestone Corporation
    Inventor: Steven Luo
  • Publication number: 20150119528
    Abstract: The present invention provides a functional diene polymer, a preparation method thereof and a rubber composition comprising the functional diene polymer. The functional diene polymer comprises at least one type of conjugated diene structural units and silane coupler functional units represented by formula (I) in its molecular chain, and the number-average molecular weight of the functional diene polymer is 50,000˜1,000,000; R1-R4 are C1-C20 linear or branched alkyl or heteroatom-containing C1-C20 linear or branched alkyl, and the heteroatom is selected from one or more of halogen, oxygen, sulfur, silicon, and phosphorus. Not only the relationship between the wet slip resistance and the rolling resistance of the functional diene polymer is effectively improved, but also the offensive odor produced in the rubber mixing process owing to the addition of the silane coupler is reduced.
    Type: Application
    Filed: October 24, 2014
    Publication date: April 30, 2015
    Applicants: CHINA PETROLEUM & CHEMICAL CORPORATION, BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY, CHINA PETROLEUM & CHEMICAL CORPORATION
    Inventors: Aimin LIANG, Lin XU, Nini WANG, Xinhe KANG, Liangliang QU, Ke JIANG, Chuanqing LI, Ximing XIE, Hui LlU, Wenjuan SUN
  • Patent number: 8993683
    Abstract: A method for preparing a functionalized polymer, the method comprising the steps, of: (i) polymerizing monomers to form a reactive polymer, and (ii) reacting the reactive polymer with a lactone or thiolactone that contains a protected amino group.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: March 31, 2015
    Assignee: Bridgestone Corporation
    Inventors: Steven Luo, Zengquan Qin
  • Patent number: 8993669
    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, R2, R3, R4, and R5 are as defined. The invention is further directed to a rubber composition including the functionalized elastomer, and a pneumatic tire including the rubber composition.
    Type: Grant
    Filed: March 28, 2012
    Date of Patent: March 31, 2015
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Leena Nebhani, Michael Joseph Rachita
  • Patent number: 8987362
    Abstract: In general the present invention provides a functionalized polymer prepared by a process comprising the steps of preparing a pseudo-living polymer by polymerizing conjugated monomer with a lanthanide-based catalyst, and reacting the pseudo-living polymer with a functionalizing agent defined by the formula (I) A-R1—Z??(I) where R1 is a divalent bond or divalent organic group comprising from 0 to about 20 carbon atoms, A is a substituent that will undergo an addition reaction with a pseudo-living polymer, and Z is a substituent that will react or interact with silica or carbon black reinforcing fillers, with the proviso that A, R1, and Z are substituents that will not protonate a pseudo-living polymer.
    Type: Grant
    Filed: December 10, 2013
    Date of Patent: March 24, 2015
    Inventors: Yoichi Ozawa, H. Jerrold Miller, Koji Masaki, Koichi Morita, Tatsuo Fujimaki, Tetsuyo Omura, Takuo Sone, Iwakazu Hattori
  • Publication number: 20150080517
    Abstract: A method for making a thermoplastic material includes: (a) partially crosslinking an elastomer composition at a first crosslinking temperature to form a thermoplastic, partially crosslinked elastomer composition; (b) mixing a thermoplastic polymer composition with the thermoplastic, partially crosslinked elastomer composition and heating the mixture to a second crosslinking temperature higher than the first crosslinking temperature, wherein the thermoplastic polymer composition is liquid at the second crosslinking temperature; and (c) continuously mixing the mixture while further crosslinking the elastomer composition to form a thermoplastic material having a dispersed phase of crosslinked elastomer composition in the thermoplastic polymer composition. The elastomer composition may include an elastomer compounded with a curing agent and optionally additional components.
    Type: Application
    Filed: September 17, 2013
    Publication date: March 19, 2015
    Applicant: NIKE, Inc.
    Inventor: John C. Chen
  • Patent number: 8962766
    Abstract: A method for preparing a functionalized polymer, the method comprising the steps of: (i) polymerizing monomers to form a reactive polymer, and (ii) reacting the reactive polymer with a protected polyhydrazone compound.
    Type: Grant
    Filed: September 17, 2012
    Date of Patent: February 24, 2015
    Assignee: Bridgestone Corporation
    Inventors: Steven Luo, Joshua S. Dickstein, Dennis R. Brumbaugh
  • 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: 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
  • Patent number: 8927657
    Abstract: The present invention discloses a method for producing an epoxidized polymer. The method comprises the steps of: (1) providing a polymer solution containing a polymer having a conjugated diene group; (2) providing a catalyst solution dissolved in the polymer solution, the catalyst solution containing a transition metal ion and a ligand for bonding to the transition metal ion, the transition metal ion being selected from the group consisting of Ti, Mn, V, Mo, W and any combination thereof; and (3) epoxidizing double bonds of the conjugated diene group to produce the epoxidized polymer by providing an epoxidizing agent dissolved in the polymer solution containing the catalyst solution, wherein the epoxidizing agent is meta-chloroperoxybenzoic acid (mCPBA) or analogs thereof.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: January 6, 2015
    Assignee: TSRC Corporation
    Inventors: Chih-Wei Hsu, Hung-Chieh Hou
  • Publication number: 20140378620
    Abstract: There is provided a catalyst composition for polymerizing a conjugated diene monomer containing a rare earth complex having a specific structure and a specific compound.
    Type: Application
    Filed: January 30, 2013
    Publication date: December 25, 2014
    Applicant: Asahi Kasei Chemicals Corporation
    Inventors: Katsuhiro Iwase, Yuji Kosugi
  • Patent number: 8859687
    Abstract: The present invention is directed to 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.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: October 14, 2014
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Ralf Mruk, Frank Schmitz, Robert Fokko Roskamp, Alexandra Hermann, Rudolf Wilhelm Zentel
  • Publication number: 20140303327
    Abstract: A method for producing a polydiene, the method comprising the steps of: (i) forming an active catalyst by combining a lanthanide-containing compound, an alkylating agent, and a halogen source in the substantial absence of a sulfone, a sulfoxide, and a phosphine oxide; and (ii) polymerizing conjugated diene monomer in the presence of the active catalyst and a polymerization modulator selected from the group consisting of a sulfone, a sulfoxide, and a phosphine oxide.
    Type: Application
    Filed: November 19, 2012
    Publication date: October 9, 2014
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Kevin M. McCauley, Steven Luo
  • Publication number: 20140296445
    Abstract: A method for preparing a coupled polymer, the method comprising the steps of: (i) polymerizing monomers to form a reactive polymer, and (ii) reacting the reactive polymer with a glycidic ester.
    Type: Application
    Filed: November 19, 2012
    Publication date: October 2, 2014
    Applicant: BRIDGESTONE CORPORATION
    Inventor: Steven Luo
  • Publication number: 20140275403
    Abstract: A method for preparing a functionalized polymer, the method comprising the steps of polymerizing monomer to form a reactive polymer, and reacting the reactive polymer with a polycyano compound.
    Type: Application
    Filed: June 3, 2014
    Publication date: September 18, 2014
    Inventor: Steven LUO
  • Publication number: 20140256839
    Abstract: This invention relates to polybutadiene modified polymer polyols which comprise one or more base polyols, at least one preformed stabilizer, one or more ethylenically unsaturated monomers, and polybutadiene, in the presence of at least one free radical polymerization catalyst, and optionally, one or more chain transfer agents. The polybutadiene present in these polybutadiene modified polymer polyols may be carried into the polymer polyol through the preformed stabilizer, by a polybutadiene containing component that is added separately from the preformed stabilizer to the polymer polyol, or a combination thereof, with the total amount of polybutadiene ranging from 0.03 to 1.0% by weight of polybutadiene, based on 100% by weight of the polymer polyol. The present invention also relates to processes for preparing these polybutadiene modified polymer polyols, to foams prepared from these polybutadiene modified polymer polyols, and to processes for producing foams from these polybutadiene modified polymer polyols.
    Type: Application
    Filed: March 8, 2013
    Publication date: September 11, 2014
    Inventors: Rick L. Adkins, Brian L. Neal, Daniel P. Krisher
  • Publication number: 20140249242
    Abstract: The present invention relates to a novel type of grafting or crosslinking method for (meth)acrylates in which the reaction is initiated by isocyanates and specific bases having an imine structure. Using this novel and specifically applicable method, polymers, particularly polyolefins having double bonds, may be grafted or crosslinked in a suitable reaction procedure. Furthermore, these unsaturated polymers may be used, following reaction with (poly)isocyanates, to prepare graft or block copolymers or also for the bonding of the modified unsaturated polyolefins to polyamides, polyesters, polycarbonates, polyimines or polyurethanes.
    Type: Application
    Filed: August 24, 2012
    Publication date: September 4, 2014
    Applicant: Evonik Degussa GmbH
    Inventors: Friedrich Georg Schmidt, Stefan Spange, Ingmar Polenz
  • Patent number: 8822604
    Abstract: The invention provides a rubber composition for golf balls which includes: (A) a base rubber containing a polybutadiene having a cis-1,4 bond content of at least 60 wt %; (B) an unsaturated carboxylic acid and/or a metal salt thereof; (C) an anthranilic acid derivative of the general formula wherein R1 and R2 are each independently a hydrogen atom or a hydrocarbon group of 1 to 20 carbons, m is an integer from 1 to 4, and n is an integer from 1 to 3, with the proviso that if m and/or n is 2 or more, each occurrence of R1 and R2 may be the same or different; and (D) sulfur. The rubber composition for golf balls of the invention enables a high-quality molded and crosslinked product having a suitable hardness and a high resilience to be obtained.
    Type: Grant
    Filed: December 11, 2012
    Date of Patent: September 2, 2014
    Assignees: Bridgestone Sports Co., Ltd., Bridgestone Corporation
    Inventors: Yuichiro Ozawa, Tsuyoshi Nakajima, Yusuke Yamagata, Teppei Mori, Takahiro Iwai
  • Publication number: 20140243447
    Abstract: The present invention relates to a conjugated diene polymer end-modified with an alkoxysilane derivative. More particularly, the present invention relates to an end-modified conjugated diene polymer, wherein an alkoxysilane derivative having an ether group and a dialkylamino group is bonded as end modifier to an end of a conjugated diene polymer, which is useful as a rubber material for a tire tread owing to improved compatibility with an inorganic reinforcing agent and improves dynamic mechanical properties such as wet traction, rolling resistance, Mooney viscosity, processability, etc.
    Type: Application
    Filed: September 13, 2013
    Publication date: August 28, 2014
    Applicant: KOREAN KUMHO PETROCHEMICAL CO., LTD.
    Inventors: Hanjoung CHO, Jae Young KO, Dae Hyung LEE, Cheol Min PARK, Sang Chul JI
  • Patent number: 8816014
    Abstract: 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: Grant
    Filed: September 22, 2010
    Date of Patent: August 26, 2014
    Assignee: Asahi Kasei Chemicals Corporation
    Inventors: Junichi Yoshida, Shinichi Sekikawa, Takaaki Matsuda
  • Publication number: 20140227520
    Abstract: A synthetic bead for use in mineral separation is described. The synthetic bead has a surface made of a synthetic material such as polymer and the synthetic material is functionalized with molecules having a functional group for attracting mineral particles to the surface in a separation process. The synthetic beads can be placed in flotation cell containing a mixture of water, valuable material and unwanted material or in a pipeline where the mixture is transported from one location to another. The enriched synthetic beads carrying the mineral particles are separated from the unwanted materials in the mixture. The mineral particles are then released from the synthetic beads by means of low pH treatment, ultrasonic agitation, thermal or electromagnetic treatment.
    Type: Application
    Filed: May 25, 2012
    Publication date: August 14, 2014
    Applicant: CiDRA Corporate Services Inc.
    Inventors: Paul J. Rothman, Mark R. Fernald, Francis K. Didden, Christian V. O'Keefe, Alan D. Kersey, Douglas H. Adamson
  • Patent number: 8802788
    Abstract: Rubber composition for golf balls which includes: (A) a base rubber containing a polybutadiene having a cis-1,4 bond content of at least 60 wt %; (B) an unsaturated carboxylic acid and/or a metal salt thereof; (C) an anthranilic acid derivative of the general formula wherein R1 and R2 are each independently a hydrogen atom or a hydrocarbon group of 1 to 20 carbons, m is an integer from 1 to 4, and n is an integer from 1 to 3, with the proviso that if m and/or n is 2 or more, each occurrence of R1 and R2 may be the same or different; and (D) an organic peroxide having a one-minute half-life temperature which is at least 158° C. and less than 175° C. The rubber composition for golf balls of the invention enables a high-quality molded and crosslinked product having a suitable hardness and a high resilience to be obtained.
    Type: Grant
    Filed: December 11, 2012
    Date of Patent: August 12, 2014
    Assignees: Bridgestone Sports Co., Ltd., Bridgestone Corporation
    Inventors: Tsuyoshi Nakajima, Yuichiro Ozawa, Yusuke Yamagata, Teppei Mori, Takahiro Iwai
  • Patent number: 8796376
    Abstract: A functionalized polyolefin having one or more pyridazine moieties is disclosed herein. A method to produce the functionalized polyolefin is also disclosed. A composition including the functionalized polyolefin is also disclosed.
    Type: Grant
    Filed: March 26, 2012
    Date of Patent: August 5, 2014
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Rahul R. Kulkarni, Pradeep P. Shirodkar, Alistair D. Westwood, Donna J. Crowther, Wei Tang
  • Publication number: 20140206789
    Abstract: The objective of the present invention is to provide a derivative of polybutadiene suitable as a material of a curable composition for obtaining a cured product having high shearing stress. The present invention provides: a silylated polybutadiene characterized by containing a repeating unit represented by formula (I) (in the formula: R1, R2, and R3 each independently represents an unsubstituted or substituted aryl group, an alkyl group, or an aralkyl group. Among R1 to R3, at least one of R1 to R3 is an aryl group or aralkyl group.); a curable composition characterized by containing the silylated polybutadiene and a polymerization initiator; and a cured product obtained by curing the curable composition.
    Type: Application
    Filed: October 3, 2012
    Publication date: July 24, 2014
    Inventors: Hiroki Hashimoto, Taiki Yamata
  • Publication number: 20140187712
    Abstract: A method for preparing a functionalized polymer, the method comprising the steps of: (i) polymerizing monomer to form a reactive polymer, and (ii) reacting the reactive polymer with an azodiester.
    Type: Application
    Filed: December 31, 2013
    Publication date: July 3, 2014
    Inventors: Steven LUO, Christine RADEMACHER
  • Publication number: 20140187711
    Abstract: A method for preparing a functionalized polymer, the method comprising the steps of: (i) polymerizing monomer to form a reactive polymer, and (ii) reacting the reactive polymer with an unsaturated heterocycle containing an azolinyl group.
    Type: Application
    Filed: December 27, 2013
    Publication date: July 3, 2014
    Inventors: Steven LUO, Joshua P. ABELL, Joshua S. DICKSTEIN
  • Patent number: 8763658
    Abstract: A tire having an internal surface includes an electronic device and an anchoring body mounted on the internal surface for engagement between the electronic device and the internal surface of the tire, wherein the anchoring body includes a crosslinked elastomeric material obtained by crosslinking a crosslinkable elastomeric composition including a synthetic diene rubber, preferably in an amount of from 20 to 80 phr, and a halogenated butyl rubber, preferably in an amount of from 80 to 20 phr.
    Type: Grant
    Filed: October 16, 2008
    Date of Patent: July 1, 2014
    Assignee: Pirelli Tyre S.p.A.
    Inventors: Marco Nahmias Nanni, Luisa Montinaro
  • Patent number: 8748531
    Abstract: A method for preparing a functionalized polymer, the method comprising the steps of polymerizing monomer to form a reactive polymer; and reacting the reactive polymer with a protected oxime compound containing an acyl group.
    Type: Grant
    Filed: December 10, 2010
    Date of Patent: June 10, 2014
    Assignee: Bridgestone Corporation
    Inventor: Steven Luo
  • Patent number: 8750762
    Abstract: To provide a charging member that can have a uniform electrical resistance, can not easily change in electrical resistance even by any long-term continuous electrification and, as a result thereof, may cause less change in its charging performance with time. A charging member having a conductive support and an elastic-material layer; the elastic-material layer comprising a vulcanized rubber; the vulcanized rubber being a vulcanized product of a composition which comprises i) a binder polymer comprising a polymer having a butadiene skeleton and ii) carbon black as electrically conductive particles; and the polymer having a butadiene skeleton has a molecular terminal modified with an atomic group having a specific structure.
    Type: Grant
    Filed: February 15, 2011
    Date of Patent: June 10, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masaaki Harada, Hiroaki Watanabe, Keiji Nose
  • Patent number: 8735494
    Abstract: A method for preparing a polydiene polymer, the method comprising: (i) preparing an active polymerization mixture by introducing conjugated diene monomer, and optionally monomer copolymerizable therewith, and a lanthanide-based catalyst system; (ii) adding a nitrile compound containing a protected amino group to the active polymerization mixture; and (iii) adding a co-functionalizing agent to the active polymerization mixture.
    Type: Grant
    Filed: November 27, 2012
    Date of Patent: May 27, 2014
    Assignee: Bridgestone Corporation
    Inventors: Steven Luo, Eiju Suzuki, Dennis R. Brumbaugh
  • Publication number: 20140100339
    Abstract: In general the present invention provides a functionalized polymer prepared by a process comprising the steps of preparing a pseudo-living polymer by polymerizing conjugated monomer with a lanthanide-based catalyst, and reacting the pseudo-living polymer with a functionalizing agent defined by the formula (I) A-R1—Z??(I) where R1 is a divalent bond or divalent organic group comprising from 0 to about 20 carbon atoms, A is a substituent that will undergo an addition reaction with a pseudo-living polymer, and Z is a substituent that will react or interact with silica or carbon black reinforcing fillers, with the proviso that A, R1, and Z are substituents that will not protonate a pseudo-living polymer.
    Type: Application
    Filed: December 10, 2013
    Publication date: April 10, 2014
    Applicants: JSR CORPORATION, BRIDGESTONE CORPORATION
    Inventors: Yoichi OZAWA, H. Jerrold MILLER, Koji MASAKI, Koichi MORITA, Tatsuo FUJIMAKI, Tetsuyo OHUMURA, Takuo SONE, Iwakazu HATTORI
  • Publication number: 20140100340
    Abstract: A method for preparing a functionalized polymer, the method comprising the steps of: (i) polymerizing monomer with a coordination catalyst to form a reactive polymer; and (ii) reacting the reactive polymer with a nitroso compound.
    Type: Application
    Filed: December 10, 2013
    Publication date: April 10, 2014
    Applicant: BRIDGESTONE CORPORATION
    Inventor: Steven LUO
  • Publication number: 20140093728
    Abstract: A carbon nanostructure that is free of a growth substrate can include a plurality of carbon nanotubes that are branched, crosslinked, and share common walls with one another. The carbon nanostructure can be released from a growth substrate in the form of a flake material. Optionally, the carbon nanotubes of the carbon nanostructure can be coated, such as with a polymer, or a filler material can be present within the porosity of the carbon nanostructure. Methods for forming a carbon nanostructure that is free of a growth substrate can include providing a carbon nanostructure adhered to a growth substrate, and removing the carbon nanostructure from the growth substrate to form a carbon nanostructure that is free of the growth substrate. Various techniques can be used to affect removal of the carbon nanostructure from the growth substrate. Isolation of the carbon nanostructure can further employ various wet and/or dry separation techniques.
    Type: Application
    Filed: September 24, 2013
    Publication date: April 3, 2014
    Applicant: Applied Nanostructured Solutions, LLC
    Inventors: Tushar K. SHAH, Harry Charles Malecki, Rajneeta Rachel Basantkumar, Han Liu, Corey Adam Fleischer, Joseph J. Sedlak, Jigar M. Patel, William Patrick Burgess, Jess Michael Goldfinger
  • Patent number: 8674030
    Abstract: A modified conjugated diene polymer and a manufacturing method for the same are provided. The modified conjugated diene polymer is manufactured by the method including, forming a conjugated diene polymer by a polymerization step and making it react with a first modifier and then react with a second modifier. The modified conjugated diene polymer has over 97% of cis-1,4 structure. A PDI of the modified conjugated diene polymer is bigger than 1.8 and smaller than 2.5. The first modifier has a chemical formula of X—R1-Si(R2)3. The second modifier has a chemical formula of R3-Si(R4)3.
    Type: Grant
    Filed: November 6, 2012
    Date of Patent: March 18, 2014
    Assignee: Chi Mei Corporation
    Inventors: Chih-Cheng Lee, Kuei-Lun Cheng
  • Publication number: 20140072746
    Abstract: Polymeric compositions and processes of forming the same are discussed herein. The processes generally include contacting a polylactic acid with a reactive modifier selected from epoxy-functionalized polybutadiene, ionic monomer, and combinations thereof.
    Type: Application
    Filed: November 15, 2013
    Publication date: March 13, 2014
    Applicant: FINA TECHNOLOGY, INC.
    Inventors: Fengkui Li, John Ashbaugh, David Rauscher, Robert Dotter
  • Patent number: 8669339
    Abstract: Disclosed are a polybutadiene having a controlled microstructure, a narrow molecular weight distribution, minimal gel content, and a low APHA color, a modified polybutadiene, producing methods for both, and a rubber-reinforced styrene resin composition using the same. The polybutadiene of the present invention is characterized in that the ratio (Tcp/ML1+4) of a 5% toluene melting viscosity (Tcp) measured at 25° C. and the Mooney viscosity (ML1+4) at 100° C. is 2.0 or higher, the molecular weight distribution (Mw/Mn) is 2.80 or less, the gel content is 0.06 wt % or less, and the APHA color is 20 or less.
    Type: Grant
    Filed: February 21, 2011
    Date of Patent: March 11, 2014
    Assignee: Ube Industries, Ltd.
    Inventors: Yasuyoshi Okabe, Yuuji Matsudaira, Chaiyaket Vichuta, Toshiyuki Sakaguchi
  • Patent number: 8664340
    Abstract: An improved polymerization and work-up process makes it possible to produce specific nitrile rubbers which have a particular ion index which is responsible for an excellent vulcanization rate and leads to vulcanizates having an advantageous property profile.
    Type: Grant
    Filed: February 28, 2008
    Date of Patent: March 4, 2014
    Assignee: LANXESS Deutschland GmbH
    Inventor: Werner Obrecht
  • Publication number: 20140045997
    Abstract: A method of preparing a malleable and/or self-healing polymeric or composite material is provided. The method includes providing a polymeric or composite material comprising at least one alkene-containing polymer, combining the polymer with at least one homogeneous or heterogeneous transition metal olefin metathesis catalyst to form a polymeric or composite material, and performing an olefin metathesis reaction on the polymer so as to form reversible carbon-carbon double bonds in the polymer. Also provided is a method of healing a fractured surface of a polymeric material. The method includes bringing a fractured surface of a first polymeric material into contact with a second polymeric material, and performing an olefin metathesis reaction in the presence of a transition metal olefin metathesis catalyst such that the first polymeric material forms reversible carbon-carbon double bonds with the second polymeric material.
    Type: Application
    Filed: August 8, 2013
    Publication date: February 13, 2014
    Inventors: Zhibin Guan, Yixuan Lu
  • Patent number: 8642704
    Abstract: A functionalized polymer terminated by using an isocyanato alkoxysilane terminating agent. A method of preparing a functionalized polymer comprising the step of contacting a living polymer with an isocyanato alkoxysilane terminating agent.
    Type: Grant
    Filed: May 24, 2010
    Date of Patent: February 4, 2014
    Assignee: Bridgestone Corporation
    Inventors: Christine Rademacher, David F. Lawson, Terrence E. Hogan
  • Patent number: 8642705
    Abstract: A process for producing a conjugated diene-based polymer which comprises, in the first modification, modifying a conjugated diene-based polymer having active chain ends, which is obtained by polymerizing a diene-based monomer singly or with other monomers and has a content of a cis-1,4 unit of 75% by mole or greater in the conjugated diene portion of the main chain, by reacting the active chain ends with a hydrocarbyloxysilane compound and reacting the modified polymer with a specific compound such as a hydrocarbyloxysilane compound, and a rubber composition containing the polymer modified in accordance with the above process and, preferably, 10 to 100 parts by weight of silica and/or carbon black per 100 parts by weight of the rubber component containing the modified polymer, are provided. The rubber composition containing silica and/or carbon black exhibits improved fracture properties, abrasion resistance, low heat buildup property and excellent workability.
    Type: Grant
    Filed: July 2, 2010
    Date of Patent: February 4, 2014
    Assignee: Bridgestone Corporation
    Inventors: Youichi Ozawa, Hajime Kondou, Noriko Endou
  • Patent number: 8623955
    Abstract: A macromolecule including a polymer and a polyhedral radical chemically bonded to a terminus of the polymer provides numerous processing and performance advantages. Further functionalization of this macromolecule also is described as being advantageous in certain circumstances. Methods of providing, functionalizing, and utilizing the macro-molecule also are provided.
    Type: Grant
    Filed: August 3, 2012
    Date of Patent: January 7, 2014
    Assignee: Bridgestone Corporation
    Inventors: Yuan-Yong Yan, Jason Poulton, Xiaorong Wang, Hao Wang, Michelle A. Cottrell
  • Patent number: 8623967
    Abstract: A method for preparing a functionalized polymer, the method comprising the steps of: (i) polymerizing monomer with a coordination catalyst to form a reactive polymer; and (ii) reacting the reactive polymer with a nitroso compound.
    Type: Grant
    Filed: May 14, 2012
    Date of Patent: January 7, 2014
    Assignee: Bridgestone Corporation
    Inventor: Steven Luo
  • Patent number: 8609252
    Abstract: A rubber composition comprises a rubber component, sulfur and a sulfeneamide base vulcanization accelerator represented by the following Formula (I), and has an excellent adhesive property with metal such as a steel cord without bringing about problems such as deteriorating in the physical properties and blooming of rubber after vulcanization. (wherein R1 represents a branched alkyl group having 3 to 12 carbon atoms; R2 represents a linear alkyl group having 1 to 10 carbon atoms or a branched alkyl group having 3 to 10 carbon atoms; x represents an integer of 1 or 2, and n represents an integer of 0 or 1).
    Type: Grant
    Filed: December 26, 2008
    Date of Patent: December 17, 2013
    Assignee: Bridgestone Corporation
    Inventor: Yoshitaka Satou
  • Patent number: 8609251
    Abstract: The rubber composite was fabricated by use of direct vulcanization adhesion method with a sulfenamide-based vulcanization accelerators, and the sulfenamide-based vulcanization accelerator is used for a rubber composite using a sulfenamide compound as a vulcanization accelerator, the adhesion properties of the steel cord/rubber adhesion boundary surface and the anti-scorch properties can be achieved simultaneously, the sulfenamide-based vulcanization accelerator being such that the bond order between an amine generated form the sulfenamide compound and a surface of a metal material is zero, and the distance of the S—N (amine moiety) bond of the sulfenamide compound is less than 1.67 ?, and the electric charge on N of the amine radical generated as a result of dissociation of the S—N bond is ?0.295 or less.
    Type: Grant
    Filed: September 11, 2009
    Date of Patent: December 17, 2013
    Assignee: Bridgestone Corporation
    Inventors: Masashi Ohtsuki, Yoshitaka Sato
  • Publication number: 20130331507
    Abstract: A method for preparing a coupled polymer, the method comprising the steps of: (i) polymerizing monomers to form a reactive polymer, and (ii) reacting the reactive polymer with a boronic ester containing a cyano group.
    Type: Application
    Filed: June 10, 2013
    Publication date: December 12, 2013
    Inventor: Steven LUO
  • Publication number: 20130331508
    Abstract: A method for preparing a functionalized polymer, the method comprising the steps of: (i) polymerizing monomers to form a reactive polymer, and (ii) reacting the reactive polymer with an unsaturated heterocycle containing a protected amino group.
    Type: Application
    Filed: June 10, 2013
    Publication date: December 12, 2013
    Inventor: Steven LUO
  • Patent number: 8604136
    Abstract: A process for making a substantially saturated dendritic hydrocarbon polymer. The process has the following steps: (a) polymerizing an amount of one or more alkadiene monomers and/or one or more alkenylaromatic polymers under anionic conditions in the presence of a di- or tri-functional organic lithium initiator to produce a polyalkadiene defining a multiplicity of lithiated chain ends; (b) reacting the polyalkadiene with an amount of a tri- or di-functional silane coupling agent to form a dendritic polyalkadiene; and (c) hydrogenating the dendritic polyalkadiene to form a substantially saturated dendritic hydrocarbon polymer.
    Type: Grant
    Filed: October 14, 2010
    Date of Patent: December 10, 2013
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: David John Lohse, Nikos Hadjichristidis, Andy Haishung Tsou, Suzzy C. H. Ho, Paul Edward Schuenzel
  • Patent number: 8584725
    Abstract: The invention relates to a cured rubber composition, its preparation and a tire with a component of such rubber composition.
    Type: Grant
    Filed: September 17, 2010
    Date of Patent: November 19, 2013
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Bruce Raymond Hahn, Rebecca Lee Dando, Larry Ashley Gordon
  • Patent number: 8563659
    Abstract: An improved polymerization and work-up process makes it possible to produce specific nitrile rubbers which have a particular ion index which is responsible for an excellent vulcanization rate and leads to vulcanizates having an advantageous property profile.
    Type: Grant
    Filed: February 28, 2008
    Date of Patent: October 22, 2013
    Assignee: LANXESS Deutschland GmbH
    Inventor: Werner Obrecht