Interpolymerized With At Least One Diverse Hydrocarbon Monomer Containing At Least Two Ethylenic Groups Patents (Class 526/337)
  • Patent number: 8940848
    Abstract: The present invention relates to a branched conjugated diene copolymer which is useful for preparing a rubber composition, having high uniformity of a temperature dependence curve of a viscoelasticity tan ?, for a tire, a rubber composition comprising the copolymer, and a pneumatic tire produced using the rubber composition for a tire. The branched conjugated diene copolymer is composed of monomer components comprising a branched conjugated diene compound represented by a general formula (1): wherein R1 represents an aliphatic hydrocarbon group having 6 to 11 carbon atoms, and an aromatic vinyl compound represented by a general formula (2): wherein R2 represents an aromatic hydrocarbon group having 6 to 10 carbon atoms, and R5 represents a hydrogen atom or the like, and a copolymerization ratio (m) of the aromatic vinyl compound (2) is 45% by mass or more.
    Type: Grant
    Filed: September 4, 2013
    Date of Patent: January 27, 2015
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventor: Kensuke Washizu
  • Patent number: 8940849
    Abstract: It has been found that certain cells in culture can convert more than about 0.002 percent of the carbon available in the cell culture medium into isoprene. These cells have a heterologous nucleic acid that (i) encodes an isoprene synthase polypeptide and (ii) is operably linked to a promoter. The isoprene produced in such a cultured medium can then be recovered and polymerized into synthetic rubbers and other useful polymeric materials. The synthetic isoprene containing polymers of this invention offer the benefit of being verifiable as to being derived from non-petrochemical based resources. They can also be analytically distinguished from rubbers that come from natural sources. The present invention more specifically discloses a polyisoprene polymer which is comprised of repeat units that are derived from isoprene monomer, wherein the polyisoprene polymer has ?13C value of greater than ?22‰.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: January 27, 2015
    Assignees: The Goodyear Tire & Rubber Company, Danisco US Inc.
    Inventors: Frank J. Feher, Gregory M. Whited, Gopal K. Chotani, Fernando Valle, Carol Fioresi, Karl J. Sanford, Joseph McAuliffe, Marguerite Cervin, Aaron S. Puhala, Andrei Miasnikov, Ilana S. Aldor
  • Patent number: 8901262
    Abstract: This invention relates to compositions and methods for producing polymers of isoprene derived from renewable resources, such as isoprene produced from cultured cells that use renewable carbon sources. A starting isoprene composition, such as a bioisoprene composition, is distinguished from petroleum based isoprene by its purity profile (such as lower levels of certain C5 hydrocarbons other than isoprene, presence of certain compounds associated with the biological process for production) and the relative content of the carbon isotopes. Polymers obtained by polymerization of such starting isoprene composition according to this invention, such as a polyisoprene homopolymer or a copolymer having repeat units that are derived from isoprene, are distinguishable from isoprene containing polymers from petrochemical resources.
    Type: Grant
    Filed: August 20, 2013
    Date of Patent: December 2, 2014
    Assignees: The Goodyear Tire & Rubber Company, Danisco US Inc.
    Inventors: Joseph C. McAuliffe, Sergey Paramonov, Stephan Rodewald, Karl J. Sanford
  • Publication number: 20140275404
    Abstract: The present invention relates to a conjugated diene based polymer comprising a monomer unit derived from at least one conjugated diene selected from 1,3-butadiene and isoprene and a monomer unit derived from a compound having two conjugated carbon-carbon double bonds and one or more non-conjugated carbon-carbon double bond.
    Type: Application
    Filed: March 5, 2014
    Publication date: September 18, 2014
    Applicant: Sumitomo Chemical Company, Limited
    Inventor: Mana FUJII
  • Patent number: 8816032
    Abstract: The present invention is directed to a copolymer derived from an acyclic conjugated diene monomer and a 1-vinylcycloalkene monomer of formula I where n is an integer ranging from 0 to 4, R is hydrogen or a linear or branched alkyl group of one to four carbon atoms, with the proviso that R may be appended at the 3 to (n+5) positions on the carbon ring.
    Type: Grant
    Filed: May 24, 2013
    Date of Patent: August 26, 2014
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: Margaret McGuigan Flook
  • Patent number: 8716409
    Abstract: A composition includes a baleable polymer resulting from the polymerization of at least one conjugated diene in the presence of an anionic initiator. The baleable polymer has carboxylate termination resulting from the addition of carbon dioxide to terminate the polymerization reaction. The polymer has Mooney ML1+4 viscosity of >35 and a solution viscosity of X, where X is >75 cP. The addition of an lonolizer to a composition that includes the polymer reduces the solution viscosity of the polymer from X to Y where Y meets the following formula: 0.4X?Y?0.58X. The baleable polymer is blended with impact-modified plastics resulting in improved izod values and optical qualities. Processes for making and utilizing the polymer composition, and ionolizer are also described.
    Type: Grant
    Filed: December 29, 2006
    Date of Patent: May 6, 2014
    Assignee: Firestone Polymers, LLC
    Inventor: Mark N. DeDecker
  • Patent number: 8701728
    Abstract: A process for preparing a copolymer of an acyclic conjugated diene and a cyclic conjugated diene using a polymerization catalyst system comprising a transition metal compound or a lanthanide metal compound, an alkylating agent, and an inorganic halide alcoholate, and rubber compositions and tires comprising the same. The copolymer contains at least 90% acyclic conjugated diene monomer, has a number average molecular weight of between 40,000 and 300,000, and has a cis-bond content of at least 92%.
    Type: Grant
    Filed: October 13, 2010
    Date of Patent: April 22, 2014
    Assignee: Bridgestone Corporation
    Inventors: Zengquan Qin, Eiju Suzuki
  • Publication number: 20140100316
    Abstract: The present invention relates to a branched conjugated diene copolymer which is useful for preparing a rubber composition, having high uniformity of a temperature dependence curve of a viscoelasticity tan?, for a tire, a rubber composition comprising the copolymer, and a pneumatic tire produced using the rubber composition for a tire. The branched conjugated diene copolymer is composed of monomer components comprising a branched conjugated diene compound represented by a general formula (1): wherein R1 represents an aliphatic hydrocarbon group having 6 to 11 carbon atoms, and an aromatic vinyl compound represented by a general formula (2): wherein R2 represents an aromatic hydrocarbon group having 6 to 10 carbon atoms, and R5 represents a hydrogen atom or the like, and a copolymerization ratio (m) of the aromatic vinyl compound (2) is 45% by mass or more.
    Type: Application
    Filed: September 4, 2013
    Publication date: April 10, 2014
    Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventor: Kensuke WASHIZU
  • Publication number: 20140088276
    Abstract: A multidimensional polymer production method for producing a multidimensional polymer containing a repeating unit derived from a first monomer and a repeating unit derived from a second monomer, the multidimensional polymer production method including the steps of: (a) using a first catalyst and a second catalyst; and (b) carrying out a polymerization reaction in the presence of the first catalyst, the second catalyst, the first monomer, the second monomer, and a chain shuttling agent in an identical reaction system, the first catalyst selectively catalyzing a positionally selective or stereoselective polymerization reaction of the first monomer per se, and the second catalyst selectively catalyzing a positionally selective or stereoselective polymerization reaction of the second monomer per se.
    Type: Application
    Filed: May 9, 2012
    Publication date: March 27, 2014
    Applicant: RIKEN
    Inventors: Zhaomin Hou, Li Pan
  • Patent number: 8598286
    Abstract: The present invention is directed to a polymer comprising repeat units derived from 1,3-butadiene and a substituted butadiene of formula I or II wherein R is hydrogen, an alkyl group, aryl group, or a fused cyclic group; and wherein at least 95 percent by weight of the repeat units have a cis-1, 4 microstructure. The invention is further directed to a rubber composition and pneumatic tire comprising the polymer, and a method for making the polymer using a neodymium catalyst system.
    Type: Grant
    Filed: November 5, 2012
    Date of Patent: December 3, 2013
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Margaret McGuigan Flook, Stephan Rodewald
  • Patent number: 8546506
    Abstract: The invention features compositions and methods for producing polymers of isoprene derived from renewable resources such as isoprene produced from cultured cells that use renewable carbon sources. A starting isoprene composition, such as a bioisoprene composition, is distinguished from petroleum based isoprene by the purity profile (such as lower levels of certain C5 hydrocarbons other than isoprene, presence of certain compounds associated with the biological process for production) and the relative content of the carbon isotopes. Polymers obtained by polymerization of such starting isoprene composition according to this invention, such as a polyisoprene homopolymer or a copolymer having repeat units that are derived from isoprene, are distinguishable from isoprene containing polymers from petrochemical resources.
    Type: Grant
    Filed: June 16, 2010
    Date of Patent: October 1, 2013
    Assignees: The Goodyear Tire & Rubber Company, Danisco US Inc.
    Inventors: Joseph C. McAuliffe, Sergey Paramonov, Stephan Rodewald, Karl J. Sanford
  • Patent number: 8420759
    Abstract: It has been found that certain cells in culture can convert more than about 0.002 percent of the carbon available in the cell culture medium into isoprene. These cells have a heterologous nucleic acid that (i) encodes an isoprene synthase polypeptide and (ii) is operably linked to a promoter. The isoprene produced in such a cultured medium can then be recovered and polymerized into synthetic rubbers and other useful polymeric materials. The synthetic isoprene containing polymers of this invention offer the benefit of being verifiable as to being derived from non-petrochemical based resources. They can also be analytically distinguished from rubbers that come from natural sources. The present invention more specifically discloses a polyisoprene polymer which is comprised of repeat units that are derived from isoprene monomer, wherein the polyisoprene polymer has ?13C value of greater than ?22‰.
    Type: Grant
    Filed: June 30, 2009
    Date of Patent: April 16, 2013
    Assignees: The Goodyear Tire & Rubber Company, Danisco US, Inc.
    Inventors: Frank J. Feher, Gregory M. Whited, Gopal K. Chotani, Fernando Valle, Carol Fioresi, Karl J. Sanford, Joseph C. McAuliffe, Marguerite Cervin, Aaron S. Puhala, Andrei Miasnikov, Ilana S. Aldor
  • Patent number: 8337824
    Abstract: The present invention is directed to compositions of a linear polyol and a salt of a crosslinked cation exchange polymer comprising a fluoro group and an acid group. These compositions are useful to bind potassium in the gastrointestinal tract.
    Type: Grant
    Filed: August 22, 2009
    Date of Patent: December 25, 2012
    Assignee: Relypsa, Inc.
    Inventors: Detlef Albrecht, Michael Burdick, Han-Ting Chang, Dominique Charmot, Ramakrishnan Chidambaram, Eric Connor, Sherin Halfon, I-Zu Huang, Mingjun Liu, Jonathan Mills, Werner Strüver
  • Patent number: 8334353
    Abstract: Provided herein are polyfarnesenes such as farnesene homopolymers derived from a farnesene and farnesene interpolymers derived from a farnesene and at least a vinyl monomer; and the processes of making and using the polyfarnesenes. The farnesene homopolymer can be prepared by polymerizing the farnesene in the presence of a catalyst such as a Ziegler-Natta catalyst, a Kaminsky catalyst, a metallocene catalyst, an organolithium reagent or a combination thereof. In some embodiments, the farnesene is prepared from a sugar by using a microorganism.
    Type: Grant
    Filed: February 2, 2012
    Date of Patent: December 18, 2012
    Assignee: Amyris, Inc.
    Inventor: Derek James McPhee
  • Patent number: 8314196
    Abstract: Provided herein are polyfarnesenes such as farnesene homopolymers derived from a farnesene and farnesene interpolymers derived from a farnesene and at least a vinyl monomer; and the processes of making and using the polyfarnesenes. The farnesene homopolymer can be prepared by polymerizing the farnesene in the presence of a catalyst. In some embodiments, the farnesene is prepared from a sugar by using a microorganism.
    Type: Grant
    Filed: September 19, 2011
    Date of Patent: November 20, 2012
    Assignee: Amyris, Inc.
    Inventor: Derek James McPhee
  • Patent number: 8188192
    Abstract: Elastomeric films which are both soft and thermally, UV and oxidatively stable are provided. The films are composed of coupled, selectively hydrogenated block copolymers having a relatively high molecular weight and high vinyl content. In addition to the block copolymer other components may be present in formulated films such as other block copolymers, hydrocarbon resins, polyolefins, metallocene polyolefins, homopolystyrene or mineral oils. The softness of the films is determined by the stress at 100% tensile elongation where the films with suitable softness have a 100% stress of about 100 psi or less. While soft, the films also are strong with tensile strengths of 1000 psi or more and suitable hysteresis properties. The elastomeric films are useful as integral components of personal hygiene articles such as gloves, diapers, incontinence products, disposable swimwear and disposable undergarments.
    Type: Grant
    Filed: December 19, 2008
    Date of Patent: May 29, 2012
    Assignee: Kraton Polymers U.S. LLC
    Inventors: Dale Lee Handlin, Jr., Phillip Doerpinghaus, Sandra Horton, legal representative, Keith Eiden, Margaret Clawson
  • Publication number: 20120048446
    Abstract: The present invention achieves increased filler interaction by incorporating a small amount (a few units per chain of rubbery polymer) of a conjugated triene monomer, such as alloocimene, randomly throughout the polymer chain of a rubbery polymer or at the chain ends of the rubbery polymer. The incorporation of the conjugated triene monomer leads to the formation of a polymer containing highly reactive conjugated diene units. These conjugated diene units can chemically react with carbon black leading to superior reinforcement. Alternatively, these conjugated diene units can be used for functionalization of the polymer with silica interactive/reactive groups using Diels Alder reactions. This functionalization of the rubbery polymer can conveniently be conducted in a mixer, such as a Banbury mixer, a mill mixer, or the like.
    Type: Application
    Filed: April 5, 2011
    Publication date: March 1, 2012
    Applicant: THE GOODYEAR TIRE & RUBBER COMPANY
    Inventors: Gabor Kaszas, Stephan Rodewald, Joseph John Kulig
  • Publication number: 20110237769
    Abstract: It has been found that certain cells in culture can convert more than about 0.002 percent of the carbon available in the cell culture medium into isoprene. These cells have a heterologous nucleic acid that (i) encodes an isoprene synthase polypeptide and (ii) is operably linked to a promoter. In some cases, these cells are cultured in a culture medium that includes a carbon source, such as, but not limited to, a carbohydrate, glycerol, glycerine, dihydroxyacetone, one-carbon source, oil, animal fat, animal oil, fatty acid, lipid, phospholipid, glycerolipid, monoglyceride, diglyceride, triglyceride, renewable carbon source, polypeptide (e.g., a microbial or plant protein or peptide), yeast extract, component from a yeast extract, or any combination of two or more of the foregoing. The isoprene produced in such a cultured medium can then be recovered and polymerized into synthetic rubbers and other useful polymeric materials.
    Type: Application
    Filed: June 30, 2009
    Publication date: September 29, 2011
    Applicant: The Goodyear Tire & Rubber Company
    Inventors: Frank J. Feher, Gregory M. Whited, Gopal K. Chotani, Fernando Valle, Carol Fioresi, Karl J. Sanford, Joseph C. McAuliffe, Marguerite Cervin, Aaron S. Puhala, Andrei Miasnikov, Ilana S. Aldor
  • Patent number: 7951873
    Abstract: This invention relates to blends of linear low density polyethylene copolymers with other linear low density polyethylenes or very low density, low density, medium density, high density, and differentiated polyethylenes. The invention also includes articles produced from the linear low density polyethylene and polyethylene blends described.
    Type: Grant
    Filed: April 18, 2007
    Date of Patent: May 31, 2011
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Steven Arthur Best, Paul Masten German, Jerry Michael Johnson, Alan M. Malakoff, Stefan Bertil Ohlsson
  • Publication number: 20110040058
    Abstract: The invention features compositions and methods for producing polymers of isoprene derived from renewable resources such as isoprene produced from cultured cells that use renewable carbon sources. A starting isoprene composition, such as a bioisoprene composition, is distinguished from petroleum based isoprene by the purity profile (such as lower levels of certain C5 hydrocarbons other than isoprene, presence of certain compounds associated with the biological process for production) and the relative content of the carbon isotopes. Polymers obtained by polymerization of such starting isoprene composition according to this invention, such as a polyisoprene homopolymer or a copolymer having repeat units that are derived from isoprene, are distinguishable from isoprene containing polymers from petrochemical resources.
    Type: Application
    Filed: June 16, 2010
    Publication date: February 17, 2011
    Inventors: Joseph C. MCAULIFFE, Sergey Paramonov, Stephan Rodewald, Karl J. Sanford
  • Patent number: 7812107
    Abstract: A water-based coated-type vibration damping material uses a styrene-butadiene copolymer emulsion as a resin emulsion and a calcium carbonate as an inorganic filler. The water-based coated-type vibration damping material limits a blending amount of a glycol to 2% by weight or less. In case of making a coated layer by such water-based coated-type vibration damping material, there is no blister generation observed after a hot water immersion of 168 hours (7 days), after a hot water immersion of 336 hours (14 days) and after a hot water immersion of 1000 hours, either.
    Type: Grant
    Filed: July 3, 2006
    Date of Patent: October 12, 2010
    Assignees: Aisin Kako Kabushiki Kaisha, Toyota Jidosha Kabushiki Kaisha
    Inventors: Masayuki Numazawa, Ken Tsuzuki, Yutaka Ohashi
  • Publication number: 20100227977
    Abstract: The present invention relates to a method to produce highly branched polymers with a polyolefin backbone structure of ethylene and precise control of the nature of the branching. In particular, the distribution of branch length and number of branches can be more precisely controlled via the polymerization method of the present invention. The method comprises using anionic chemistry to make unsaturated polydienes with a well-defined, highly-branched structure, and then hydrogenating these polydienes to form highly branched or dendritic saturated hydrocarbon polymers. Highly branched or dendritic polyethylene, ethylene-propylene copolymer and atactic polypropylene are among the saturated hydrocarbon polymers that can be anionically synthesized via the proper selection of diene monomer type, coupling agent, and hydrogenation conditions.
    Type: Application
    Filed: February 5, 2010
    Publication date: September 9, 2010
    Inventors: David J. Lohse, César Garcia-Franco, Nikos Hadjichristidis
  • Patent number: 7790810
    Abstract: Vinyl functional olefin polymers are prepared by polymerizing hexadiene or copolymerizing C2-C4-?-olefin, e.g., propylene, and hexadiene in the presence of a 2,1-insertion catalyst.
    Type: Grant
    Filed: June 6, 2005
    Date of Patent: September 7, 2010
    Assignee: Cornell Research Foundation, Inc.
    Inventors: Geoffrey W. Coates, Phillip D. Hustad
  • Patent number: 7767774
    Abstract: This invention relates to a novel polymerization initiator capable of introducing an active amino proton into a polymerization starting terminal without losing polymerization activity, and a novel modified conjugated diene polymer being excellent in the interaction with a filler and capable of improving a low heat buildup of a rubber composition, and more particularly to a polymerization initiator being a diamine compound in which one amino group is protected with a silylating agent and an active proton of the other amino group is replaced with an alkali metal or an alkaline earth metal, and a modified conjugated diene polymer which can be produced by using such a polymerization initiator and is a homopolymer of a conjugated diene compound or a copolymer of a conjugated diene compound and an aromatic vinyl compound and has a residue derived from a diamine compound at its polymerization starting terminal.
    Type: Grant
    Filed: March 17, 2005
    Date of Patent: August 3, 2010
    Assignee: Bridgestone Corporation
    Inventors: Eiju Suzuki, Yoichi Ozawa
  • Patent number: 7608658
    Abstract: This invention discloses a process for manufacturing an elastomeric article by liquid injection molding, said process comprising the steps of: (I) heating a curable composition comprised of (1) a liquid polymer comprised of repeat units that are derived from a conjugated diolefin monomer, wherein said liquid polymer has a weight average molecular weight which is within the range of 5,000 to 100,000, and wherein the liquid polymer is functionalized with an amine moiety, (2) a carbonyl inhibited platinum catalyst, and (3) a tetrakis(dialkyl siloxy) silane crosslinking agent, to a temperature which is within the range of 30° C. to 100° C.; (II) injecting the heated curable composition into a mold at a temperature which is within the range of 100° C. to 210° C. to produce the elastomeric article; and (III) removing the elastomeric article from the mold.
    Type: Grant
    Filed: November 7, 2008
    Date of Patent: October 27, 2009
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Michael Joseph Rachita, Vanessa Marika Guscoff, Lawson Gibson Wideman
  • Patent number: 7504465
    Abstract: The present invention is related to a linear functional polymer having repeating units A, B and D. Unit A represents —CH2—, unit B represents and unit D represents where R1 represents a polar functional group. There are at least four A units separating each B unit, each D unit, and each B and D unit. The value y represents the total number of B units and is an integer greater than or equal to 1. The total number of D units is represented by h and is an integer greater than or equal to 0. And x represents the total number of A units and is an integer sufficient that the molar fraction of the B and D units in the linear functional polymer is represented by a value j defined by the equation: j = y + h x + y + h ? 0.032 . The present invention is also directed to a method for preparing such linear functional polymers by copolymerizing a first polar substituted monomer and a second non-polar unsubstituted monomer.
    Type: Grant
    Filed: June 17, 2008
    Date of Patent: March 17, 2009
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Lisa S. Baugh, Stephen E. Lehman, Jr., Kenneth B. Wagener, Donald N. Schulz, Enock Berluche
  • Publication number: 20090061248
    Abstract: An object of the invention is to provide a block copolymer hydrogenation product suitable for a sheet and a heat shrinkable film which are excellent in solvent resistance, rigidity, elongation and transparency, which is excellent in a balance of physical properties such as solvent resistance, natural shrinkability, low-temperature shrinkability, rigidity, transparency and low-temperature elongation, and a composition thereof.
    Type: Application
    Filed: April 7, 2006
    Publication date: March 5, 2009
    Inventors: Susumu Hoshi, Yukio Yamaura
  • Patent number: 7432337
    Abstract: The present invention provides a rubber composition for coating carcass cord improving adhesive property to the carcass cord and further suppressing the crack growth, heat generation and lowering of rubber property, and a carcass cord coated thereby. A rubber composition for coating carcass cord comprising 3 to 10 parts by weight of zinc oxide, 0.5 to 5 parts by weight of resorcin condensate or modified resorcin condensate and 0.5 to 5 parts by weight of partial condensate of hexamethylol melamine pentamethyl ether or partial condensate of hexa methoxy methylol melamine based on 100 parts by weight of a rubber component comprising 40 to 80% by weight of natural rubber or isoprene rubber, 10 to 30% by weight of butadiene rubber and 10 to 40% by weight of styrene butadiene rubber.
    Type: Grant
    Filed: May 2, 2006
    Date of Patent: October 7, 2008
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventor: Tatsuya Miyazaki
  • Patent number: 7402642
    Abstract: The present invention is related to a linear functional polymer having repeating units A, B and D. Unit A represents —CH2—, unit B represents and unit D represents where R1 represents a polar functional group. There are at least four A units separating each B unit, each D unit, and each B and D unit. The value y represents the total number of B units and is an integer greater than or equal to 1. The total number of D units is represented by h and is an integer greater than or equal to 0. And x represents the total number of A units and is an integer sufficient that the molar fraction of the B and D units in the linear functional polymer is represented by a value j defined by the equation: j = y + h x + y + h ? 0.032 . The present invention is also directed to a method for preparing such linear functional polymers by copolymerizing a first polar substituted monomer and a second non-polar unsubstituted monomer.
    Type: Grant
    Filed: October 8, 2004
    Date of Patent: July 22, 2008
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Lisa S. Baugh, Stephen E. Lehman, Jr., Kenneth B. Wagener, Donald N. Schulz, Enock Berluche
  • Patent number: 7319126
    Abstract: Branched synthetic polyisoprenes are described having a macrostructure and a microstructure very similar to those of natural rubber. According to one aspect, these polyisoprenes have an apparent stress F/S0 greater than or equal to 0.4 MPa at a relative elongation ? of 150%, applied to a dumbbell-shaped test specimen consisting of the crosslinkable polyisoprene. According to another aspect, these polyisoprenes fulfill the relationship: Cotan ??0.3761. ?inh+0.15,:??(i) where cotan ? is the cotangent of the loss angle of a sample of said polyisoprene, measured at 130° C. by means of an instrument known by the trade name “RPA2000”, said sample being subjected to shear stress to 10% deformation and at a stress frequency of 0.035 Hz, and where ?inh is the inherent viscosity of said polyisoprene, measured in toluene at 25° C. and at a concentration of said polyisoprene in toluene of 0.1 g/dl.
    Type: Grant
    Filed: April 18, 2005
    Date of Patent: January 15, 2008
    Assignee: Michelin Recherche et Technique S.A.
    Inventors: Philppe Laubry, Fanny Barbotin, Philippe Johnson, Jean-Luc Auger
  • Patent number: 7294681
    Abstract: This invention relates to a polymer of one or more C3 to C40 olefins, optionally one or more diolefins, and less than 15 mole % of ethylene, and polymerization processes for producing the same.
    Type: Grant
    Filed: October 15, 2003
    Date of Patent: November 13, 2007
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Peijun Jiang, Armenag Hagop Dekmezian, Jo Ann Marie Canich, Charles Lewis Sims, Ramin Abhari, Cesar Alberto Garcia-Franco, David Raymond Johnsrud
  • Patent number: 7223828
    Abstract: Certain specific embodiments of the invention will now be discussed. For example, a process of preparing a polymer composition that includes a branched crystalline diene-modified polypropylene random terpolymer is described, which process includes: contacting a metallocene catalyst compound with a polymerization medium that includes at least a propylene monomer, a first diene monomer, and a second diene monomer; and conducting polymerization of the monomers in the presence of the metallocene catalyst compound for a time sufficient to provide a branched crystalline diene-modified polypropylene random terpolymer that includes monomeric units derived from each of the monomers, and having from 0.0 wt % to 2.0 wt % ethylene and a heat of fusion of 30 J/g or more.
    Type: Grant
    Filed: November 19, 2003
    Date of Patent: May 29, 2007
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventor: Palanisamy Arjunan
  • Patent number: 7211642
    Abstract: A polymer comprises at least two types of monomer units selected from: (1) diethynyl benzene units, (2) triethynyl benzene units, and (3) ester units. After curing, the polymer may form a condensed polyaromatic dielectric having a dielectric constant of at most 2.0 at 1 MHz, an elastic modulus of at least 7.7 GPa, and a hardness of at least 2.0 GPa.
    Type: Grant
    Filed: March 29, 2005
    Date of Patent: May 1, 2007
    Assignee: The Board of Trustees of the Univeristy of Illinois
    Inventors: James Economy, Yongqing Huang
  • Patent number: 7153805
    Abstract: The subject invention relates to a process for preparing a catalyst system that comprises the sequential steps of (I) reacting an organometalic compound that contains a metal from Group III-B of the Periodic System with an organoaluminum compound at a temperature which is within the range of 50° C. to 100° C.
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: December 26, 2006
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Wen-Liang Hsu, Adel Farhan Halasa, Chad Aaron Jasiunas
  • Patent number: 7105613
    Abstract: A process for the manufacture of a baleable lithium carboxylate polymer. The process includes polymerizing at least one conjudated diene in the presence of an organolithium initiator to a substantial completion. Thereafter, the polymerization process is terminated by the addition of carbon dioxide.
    Type: Grant
    Filed: February 4, 2005
    Date of Patent: September 12, 2006
    Assignee: Firestone Polymers, LLC
    Inventors: Daniel F. Graves, David J. Dougherty, Thomas A. Antkowiak
  • Patent number: 7074868
    Abstract: A description follows of random butadiene-isoprene copolymers with a trans-1,4 structure, having a butadiene/isoprene molar composition ranging from 98/2 to 32/68, the above copolymers being crystalline or amorphous depending on the isoprene content. The process for the preparation of the above copolymers is also described, in the present of a catalytic system which comprises: (a) a first component consisting of a vanadium compound selected from: (a1) compounds having general formula (Ia) VO(L)n(X)m wherein n is an integer from 1 to 3 and m ranges from zero to 2, n+m being equal to 2 or 3; (a2) compounds having general formula (Ib) V(L)p(X)q wherein p is an integer from 1 to 4, q ranges from zero to 3, the sum of p+q being equal to 3 or 4; wherein L is a bidentate ligand and X is a halogen, preferably Chlorine; (b) a second component selected from aluminoxanes and relative derivatives.
    Type: Grant
    Filed: August 27, 2002
    Date of Patent: July 11, 2006
    Assignees: ENI S.p.A., Polimeri Europa S.p.A.,
    Inventors: Giovanni Ricci, Francesco Masi, Marco Battistella, Anna Sommazzi, Maria Rivellini, legal representative, Sefano Santi, legal representative, Laura Santi, legal representative, Roberto Santi, deceased
  • Patent number: 7034095
    Abstract: A bicyclic conjugated diene polymer obtained by polymerizing a monomer (M) comprising at least one kind of bicyclic conjugated diene monomer represented by formula (I), and a bicyclic conjugated diene copolymer obtained by copolymerizing monomer (M) with at least one kind of unsaturated compound other than said monomer: wherein, R1 to R6 are the same or different and are each hydrogen, halogen, or alkyl or halogenated alkyl of 1 to 20 carbon; n and m are each an integer of from 0 to 10; X1, X2, Y1 and Y2 are the same or different from each other and are each hydrogen, halogen or alkyl or halogenated alkyl of 1 to 20 carbon; and, when m or n is 2 or more, each of mX1's, mX2's, nY1's and nY2's are the same or different.
    Type: Grant
    Filed: February 14, 2003
    Date of Patent: April 25, 2006
    Assignee: Nippon Petrochemicals Co., Ltd.
    Inventors: Saisuke Watanabe, Teppei Tsujimoto, Shuichi Tajima
  • Patent number: 7022783
    Abstract: The subject invention relates to a technique for synthesizing rubbery non-tapered, random, copolymers of 1,3-butadiene and isoprene. These rubbery copolymers exhibit an excellent combination of properties for utilization in tire sidewall rubber compounds for truck tires. By utilizing these isoprene-butadiene rubbers in tire sidewalls, tires having improved cut growth resistance can be built without sacrificing rolling resistance. Such rubbers can also be employed in tire tread compounds to improve tread wear characteristics and decrease rolling resistance without sacrificing traction characteristics.
    Type: Grant
    Filed: January 27, 2004
    Date of Patent: April 4, 2006
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Wen-Liang Hsu, Adel Farhan Halasa, Chad Aaron Jasiunas
  • Patent number: 7001956
    Abstract: The present invention relates to articles prepared from novel anionic block copolymers of mono alkenyl arenes and conjugated dienes, and to blends of such block copolymers with other polymers. The block copolymers are selectively hydrogenated and have mono alkenyl arene end blocks and conjugated diene mid blocks. The block copolymer may be blended with at least one other polymer selected from the group consisting of olefin polymers, styrene polymers, amorphous resins and engineering thermoplastic resins.
    Type: Grant
    Filed: June 4, 2003
    Date of Patent: February 21, 2006
    Assignee: Kraton Polymers U.S. LLC
    Inventors: Dale Lee Handlin, Jr., Carl Lesley Willis, Hendrik de Groot, Margaret Ann Burns Clawson, Gert Joly, Catherine Maris, Lie Djiauw
  • Patent number: 6995224
    Abstract: This invention discloses a process for synthesizing an amine functionalized monomer that comprises (1) reacting a secondary amine with a 2,3-dihalopropene to produce a vinyl halide containing secondary amine having a structural formula selected from the group consisting of wherein R and R? can be the same or different and represent allyl, alkoxyl or alkyl groups containing from 1 to about 10 carbon atoms, and wherein X represents a halogen atom, and wherein m represents an integer from 4 to about 10, and wherein X represents a halogen atom; and (2) reacting the vinyl halide containing secondary amine with a vinyl magnesium halide to produce the monomer having a structural formula wherein R and R? can be the same or different and represent alkyl, allyl or alkoxyl groups containing from 1 to about 10 carbon atoms, and wherein m represents an integer from about 4 to about 10.
    Type: Grant
    Filed: January 26, 2005
    Date of Patent: February 7, 2006
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Adel Farhan Halasa, Wen-Liang Hsu, Jin-Ping Zhou, Chad Aaron Jasiunas
  • Patent number: 6995228
    Abstract: A cyclic conjugated diene copolymer comprising a main chain comprised of (A) cyclic conjugated diene monomer units, (B) monomer units obtained from vinyl aromatic monomers each having a hydrogen atom at the ?-position thereof, and optionally (C) monomer units obtained from commoners which are other than the monomers used for obtaining the monomer units A and B and which are copolymerizable with at least one of the monomers used for obtaining the monomer units A and B, wherein all monomer units A and the monomer units B together form one or more polymer chains each having an A/B random sequence, wherein the one or more polymer chains each having an A/B random sequence contain at least one polymer chain having a number average molecular weight of from 20,000 to 500,000 and contain no polymer chain having a number average molecular weight of more than 500,000. A process for producing the above-mentioned cyclic conjugated diene copolymer by living anionic polymerization.
    Type: Grant
    Filed: August 16, 2002
    Date of Patent: February 7, 2006
    Assignee: Asahi Kasei Kabushiki Kaisha
    Inventors: Junichi Shishido, Kenichi Sanechika
  • Patent number: 6977286
    Abstract: An objective of the invention is to provide a rubber composition which has satisfactory processability and dimension stability, and the like, gives a vulcanized rubber exhibiting excellent wearing resistance and tensile strength, and the like, and thus is useful in a belt, a hose and a tire and the like, as well as a crosslinked rubber particle for obtaining such rubber composition. A rubber composition of the invention comprises [1] a crosslinked rubber particle comprising as repeating units (a) 30 to 94.89% by weight of a conjugated diene unit, (b) 5 to 69.89% by weight of an aromatic vinyl unit, (c) 0.01 to 10% by weight of a monomer unit having at least two polymerizable unsaturated group, (d) one polymerizable unsaturated group and an amino group, a hydroxyl group and an epoxy group and (e) 0.
    Type: Grant
    Filed: January 23, 2004
    Date of Patent: December 20, 2005
    Assignee: JSR Corporation
    Inventors: Tomohisa Konno, Toshihiro Tadaki, Yoshiyuki Udagawa, Hiroshi Akema
  • Patent number: 6962960
    Abstract: A method and apparatus are disclosed for purifying copolymer compounds having monovinyl aromatic blocks and conjugated diene blocks by reducing the residual monomer content of the finished polymer. The method and apparatus includes a combination of heat exchangers and devolatilizers used in conjunction with a copolymerization reactor system.
    Type: Grant
    Filed: January 9, 2002
    Date of Patent: November 8, 2005
    Assignee: Fina Technology, Inc.
    Inventors: Michel Daumerie, Douglas A. Berti, Jose Sosa, Aron T. Griffith
  • Patent number: 6936669
    Abstract: This invention discloses a process for synthesizing an amine functionalized monomer that comprises (1) reacting a secondary amine with a 2,3-dihalopropene to produce a vinyl halide containing secondary amine having a structural formula selected from the group consisting of wherein R and R? can be the same or different and represent allyl, alkoxyl or alkyl groups containing from 1 to about 10 carbon atoms, and wherein X represents a halogen atom, and wherein m represents an integer from 4 to about 10, and wherein X represents a halogen atom; and (2) reacting the vinyl halide containing secondary amine with a vinyl magnesium halide to produce the monomer having a structural formula wherein R and R? can be the same or different and represent alkyl, allyl or alkoxyl groups containing from 1 to about 10 carbon atoms, and wherein m represents an integer from about 4 to about 10.
    Type: Grant
    Filed: December 9, 2003
    Date of Patent: August 30, 2005
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Adel Farhan Halasa, Wen-Liang Hsu, Jin-Ping Zhou, Chad Aaron Jasiunas, Corey Stanton Yon
  • Patent number: 6933358
    Abstract: This invention discloses a process for synthesizing an amine functionalized monomer that comprises (1) reacting a secondary amine with a 2,3-dihalopropene to produce a vinyl halide containing secondary amine having a structural formula selected from the group consisting of wherein R and R? can be the same or different and represent allyl, alkoxyl or alkyl groups containing from 1 to about 10 carbon atoms, and wherein X represents a halogen atom, and wherein m represents an integer from 4 to about 10, and wherein X represents a halogen atom; and (2) reacting the vinyl halide containing secondary amine with a vinyl magnesium halide to produce the monomer having a structural formula wherein R and R? can be the same or different and represent alkyl, allyl or alkoxyl groups containing from 1 to about 10 carbon atoms, and wherein m represents an integer from about 4 to about 10.
    Type: Grant
    Filed: March 14, 2003
    Date of Patent: August 23, 2005
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Adel Farhan Halasa, Wen-Liang Hsu, Jin-Ping Zhou, Chad Aaron Jasiunas, Corey Stanton Yon
  • Patent number: 6881795
    Abstract: A process for the manufacture of a baleable lithium carboxylate polymer. The process includes polymerizing at least one conjudated diene in the presence of an organolithium initiator to a substantial completion. Thereafter, the polymerization process is terminated by the addition of carbon dioxide.
    Type: Grant
    Filed: March 28, 2001
    Date of Patent: April 19, 2005
    Assignee: Firestone Polymers, LLC
    Inventors: Daniel F. Graves, David J. Dougherty, Thomas A. Antkowiak
  • Patent number: 6750293
    Abstract: Disclosed are a precursor composition, a rubber component and a shear ply prepared from the precursor composition, and methods for making and using the same. The precursor composition includes a first hydrogenated nitrile conjugated-diene copolymer modified by a metal salt unsaturated carboxylic acid ester, wherein the first hydrogenated nitrile conjugated-diene copolymer is derived from a first ethylenically unsaturated nitrile and a first conjugated diene a second hydrogenated nitrile conjugated-diene copolymer derived from a second ethylenically unsaturated nitrile and a second conjugated diene; and a curing agent.
    Type: Grant
    Filed: March 27, 2002
    Date of Patent: June 15, 2004
    Assignee: Alliant Techsystems, Inc.
    Inventors: Albert R. Harvey, John W. Ellertson
  • Patent number: 6723774
    Abstract: The invention relates to a method for producing caoutchouc particles (K) by means of emulsion polymerisation in the presence of an emulsifier and a polymerisation initiator. Said particles contain A) 80 to 100 wt. % of one or more conjugated diene monomers (A) in relation to (K) and B) 0 to 20 wt. % of one or more monoethylenically unsaturated comonomers (B) in relation to (K) in the polymerised form. The inventive method is characterised in that 1) a mixture (M1) containing water and an emulsifier is provided, 2) a mixture (M2) containing one or more monomers in the monomer or polymerised form selected from styrole, &agr;-methylstyrole, butadiene, n-butylacrylate, MMA and acrylnitrile and optionally comonomers is added, 3) polymerisation of the obtained mixture starts in the presence of a polymerisation initiator at temperature of 5 to 95° C., 4) a mixture (M3) containing 0 to 100 wt. % of the comonomers (B) in relation to (B) and 0 to 25 wt.
    Type: Grant
    Filed: September 10, 2002
    Date of Patent: April 20, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Norbert Güntherberg, Bernhard Czauderna, Michael Breulmann, Sabine Oepen, Wil Duijzings, Norbert Niessner
  • Patent number: 6706830
    Abstract: The present invention relates to a process for the copolymerization of conjugated diolefins with non-conjugated olefins in the presence of rare earth metal catalysts. The advantages of the process according to the invention are in particular the high selectivity, good space-time yield and the possibility of being able to vary the reaction conditions within a wide range.
    Type: Grant
    Filed: April 21, 2003
    Date of Patent: March 16, 2004
    Assignee: Bayer Aktiengesellschaft
    Inventors: Heike Windisch, Gerd Sylvester, Rudolf Taube, Steffen Maiwald, Jürgen Giesemann, Thomas Rosenstock
  • Patent number: 6699950
    Abstract: A process for producing a copolymer of an isoolefin and at least one other comonomer comprising the step of polymerizing a reaction mixture comprising an isoolefin, a catalyst and at least one of a cycloconjugated muitiolefin and an unconjugated cyclic olefin in the presence of an activator comprising a carbo cation producing species, a silica cation producing species and mixtures thereof. The process can be practiced using a slurry polymerization approach. One of the main benefits achieved with the present invention is the conversion of the monomers over a shorter period of time and higher percent conversion than when the activator is not used.
    Type: Grant
    Filed: August 30, 2001
    Date of Patent: March 2, 2004
    Assignee: Bayer Aktiengesellschaft
    Inventors: Juergen Ismeier, Carsten Kreuder, Oskar Nuyken