Isobutylene Patents (Class 526/348.7)
  • Patent number: 10041191
    Abstract: A polyethylene powder, wherein the specific surface area as determined by the BET method is 0.20 m2/g or larger and 0.80 m2/g or smaller, the pore volume as determined by mercury penetration method is 0.95 mL/g or smaller, the full width at half maximum of a melting endothermic peak in differential scanning calorimetry is 6.00° C. or smaller, the viscosity-average molecular weight is 100000 or higher and 10000000 or lower, and the average particle size is 100 ?m or larger and 300 ?m or smaller.
    Type: Grant
    Filed: May 10, 2017
    Date of Patent: August 7, 2018
    Assignee: Asahi Kasei Kabushiki Kaisha
    Inventor: Atsuyoshi Tarutani
  • Patent number: 9309339
    Abstract: A mid-range vinylidene content, high viscosity PIB polymer composition including PIB molecules, wherein a first portion of the PIB molecules have alpha position double bonds and a second portion of the PIB molecules have beta position double bonds, and the first and second portions together include at least 80 mole % of the PIB molecules of the composition. The first portion includes less than 75 mole % of the PIB molecules of the composition. Additionally, no more than 10 mole % of the PIB molecules of the composition have tetra-substituted double bonds, while the composition is further characterized by having a polydispersity of no more than 2.7 and in that the composition has a kinematic viscosity in the range of 3000 cSt to 5000 cSt, a number average molecular weight, Mn, in the range of 2800 Daltons to 4000 Daltons and a ratio of Mn:PDI of greater than 1100.
    Type: Grant
    Filed: October 10, 2012
    Date of Patent: April 12, 2016
    Assignee: TPC Group LLC
    Inventor: Sohel K. Shaikh
  • Publication number: 20150148506
    Abstract: A gas-phase polyolefin reactor system for rapidly transitioning from one polyolefin product to another is disclosed. The reactor system comprises a control valve, a high-flow valve, a polyolefin reactor, a flow meter, a totalizer and an empirical model. During a transition, the empirical model predicts a required amount based upon an initial concentration and a selected ending concentration, the flow meter measures a flow rate, the totalizer determines a totalized amount when the flow rate of the first stream reaches the required amount based upon the measured flow rate and outputs the totalized amount to the empirical model, and the empirical model compares the required amount to the totalized amount and determines a transition endpoint. A method of rapidly transitioning the reactor system from one polyolefin product to another is also disclosed.
    Type: Application
    Filed: February 4, 2015
    Publication date: May 28, 2015
    Applicant: Ineos USA, LLC
    Inventors: Gregory Dudish, Ernest Chan
  • Patent number: 9034998
    Abstract: A method for producing highly reactive olefin polymers wherein at least 50 mol. % of the polymer chains have terminal double bonds, and a novel polymerization initiating system for accomplishing same.
    Type: Grant
    Filed: December 16, 2011
    Date of Patent: May 19, 2015
    Assignees: University of Massachusetts, Infineum Internatonal Limited
    Inventors: Rudolf Faust, Philip Dimitrov, Rajeev Kumar, Jacob Emert, Jun Hua
  • Publication number: 20150126699
    Abstract: The invention relates to methods and equipment for converting C3+ olefin to, e.g., one or more of di-C3+ olefin, oligomers and polymers of C3+ olefin, branched C4+-aldehydes, C4+-carboxylic acids, and C4+ oxygenates. The invention encompasses producing methyl tert-butyl ether and diisobutylene, and converting methyl tert-butyl ether to isobutylene.
    Type: Application
    Filed: June 21, 2013
    Publication date: May 7, 2015
    Inventors: Matthew B. Yarrison, Alok Srivastava, Roshni Jindal, Chee Keong Then, Rodney S. Smith
  • Patent number: 8987399
    Abstract: Azeotropic or azeotrope-like compositions of the present invention include trans-1,3,3,3-tetrafluoroprop-1-ene and isobutylene. The azeotropic or azeotrope-like compositions can be used in polymerization processes, including slurry polymerization processes.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: March 24, 2015
    Assignee: Honeywell International Inc.
    Inventors: Raymond H. Thomas, Hang T. Pham, Rajiv R. Singh
  • Patent number: 8946361
    Abstract: A method of making a polyisobutylene polymer in a recirculating loop reactor with one or more reaction tubes in contact with a heat transfer medium includes controlling the delta P and polymerization reaction to provide a linear velocity of the reaction mixture of at least 11 ft/sec in the one or more tubes of the loop reactor and/or controlling the delta P and polymerization reaction of steps (b) and (c) to provide a recirculation ratio of the recirculation rate to the feed rate of at least 30:1. Typically, the process utilizes a recirculating pump operating at a at a pressure differential of from 35 psi to 70 psi.
    Type: Grant
    Filed: October 10, 2012
    Date of Patent: February 3, 2015
    Assignee: TPC Group LLC
    Inventors: Sohel K. Shaikh, Alfred Chiu, Patrick L. Bradley, Gilbert D. Valdez, Peggy J. Macatangay
  • Patent number: 8937134
    Abstract: Provided herein are vinyl ether end-functionalized polyolefins and methods for producing the same.
    Type: Grant
    Filed: November 8, 2013
    Date of Patent: January 20, 2015
    Assignee: The University of Southern Mississippi
    Inventors: Robson F. Storey, David L. Morgan
  • Patent number: 8937138
    Abstract: The present invention discloses an initiating system for cationic polymerization and a polymerization process. The present application relates to an initiating system for cationic polymerization of cationic-polymerizable monomers, and a process for cationic polymerization of cationic-polymerizable monomers by using the initiating system. The present invention particular involves an initiating system for cationic polymerization of cationic-polymerizable monomers in an aqueous reaction medium, and a process for cationic polymerization of cationic-polymerizable monomers by using the initiating system in an aqueous reaction medium.
    Type: Grant
    Filed: September 21, 2010
    Date of Patent: January 20, 2015
    Assignees: China Petroleum & Chemical Corporation, Beijing University of Chemical Technology
    Inventors: Yixian Wu, Qiang Huang, Han Zhou, Ruting Jin, Ping He
  • Patent number: 8883943
    Abstract: The present invention relates to isoolefin polymers and process for preparing the same. The present invention especially discloses a polymerization process for the cationic polymerization of isoolefin monomers in an aqueous reaction medium, and isoolefin polymers obtained by such process. In one embodiment, the present invention relates to a polymerization process for the cationic polymerization of isoolefin monomers in an aqueous reaction medium, and isoolefin polymers obtained therefrom. In another embodiment, the present invention relates to a dispersion polymerization process for the cationic copolymerization of isoolefins with conjugated or non-conjugated diolefins and/or vinyl aromatic compounds, and copolymers obtained therefrom.
    Type: Grant
    Filed: September 21, 2010
    Date of Patent: November 11, 2014
    Assignees: China Petroleum & Chemical Corporation, Beijing University of Chemical Technology
    Inventors: Yixian Wu, Qiang Huang, Han Zhou, Ruting Jin, Ping He
  • Patent number: 8877880
    Abstract: The invention relates to a method for controlling properties of a polyolefin. More particularly, the invention relates to a method for controlling certain properties of an ethylene-butene copolymer and compositions thereof using isobutylene and/or other C4 components.
    Type: Grant
    Filed: October 18, 2011
    Date of Patent: November 4, 2014
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Michael C. Bulawa, Periagaram S. Ravishankar, Anthony J. Dias
  • Publication number: 20140309381
    Abstract: In one preferred embodiment, the present invention provides a process for the liquid phase polymerization of isobutylene to manufacture highly reactive PIB oligomers having Mn under 1000, using a catalyst composition comprising a Friedel-Crafts catalyst a complexing agent, a chain transfer agent and a polymerization-retarding agent. A chain transfer agent may be selected from: ?-DIB and ?-DIB and mixtures thereof.
    Type: Application
    Filed: June 5, 2012
    Publication date: October 16, 2014
    Inventors: Sohel K. Shaikh, Rex Lawson
  • Patent number: 8853336
    Abstract: A catalyst complex composed of boron trifluoride and a cocatalyst mixture of 10 to 90% by weight of a monohydric primary C1- to C20-alcohol and 90 to 10% by weight of a monohydric secondary C3- to C20-alcohol, where the molar ratio of boron trifluoride to the sum of all alcohols is 2:1 to 1:10. This catalyst complex is used in the preparation of high-reactivity isobutene homopolymers having a number-average molecular weight of 300 to 50 000, using, as the feedstock, a C4 hydrocarbon mixture comprising at least 20% by weight of isobutene and a total of at least 10% by weight of other C4 olefins.
    Type: Grant
    Filed: February 15, 2013
    Date of Patent: October 7, 2014
    Assignee: BASF SE
    Inventors: Thomas Wettling, Stefan Hirsch, Markus Brym, Markus Weis
  • Patent number: 8846991
    Abstract: The subject invention pertains to homogeneous liquid low molecular weight ethylene/alpha-olefin polymers having a number average molecular weight (Mn) as determined by gel permeation chromatography, of less than 25,000, a total crystallinity, as measured by DSC, of less than 10%, and a pour point, as measured by ASTM D97, of less than 50° C. The subject invention also pertains to homogeneous gel-like low molecular weight ethylene/alpha-olefin polymers having a number average molecular weight (Mn) as determined by gel permeation chromatography, of less than 25,000, a total crystallinity, as measured by DSC, of less than 50%, and a pour point, as measured by ASTM D97, of less than 90° C.
    Type: Grant
    Filed: June 17, 2010
    Date of Patent: September 30, 2014
    Assignee: Dow Global Technologies LLC
    Inventors: Teresa P. Karjala, Selim Yalvac, Thomas Karjala, Daniel D. VanderLende, Brian W. Kolthammer, James C. Stevens, Charles F. Diehl
  • Patent number: 8816028
    Abstract: A polyisobutylene composition has polyisobutylene molecules with a first portion having a alpha vinylidene molecules, a second portion having beta vinylidene molecules, and a third portion having internal vinylidene molecules. The first portion has less than 75% of the polyisobutylene molecules of the composition. A total of the first portion and the second portion is less than 90% of the polyisobutylene molecules of the composition. The third portion is more than 3% of the polyisobutylene molecules of the composition. A process for forming this polyisobutylene polymer composition passes an isobutylene through a fixed bed reactor having a boron trifluoride/alcohol complex therein so as to produce the polyisobutylene composition.
    Type: Grant
    Filed: June 18, 2013
    Date of Patent: August 26, 2014
    Assignee: Petrochemical Supply, Inc.
    Inventor: C. Edward Baxter, Jr.
  • Publication number: 20140235810
    Abstract: A mid-range vinylidene content, high viscosity PIB polymer composition including PIB molecules, wherein a first portion of the PIB molecules have alpha position double bonds and a second portion of the PIB molecules have beta position double bonds, and the first and second portions together include at least 80 mole % of the PIB molecules of the composition. The first portion includes less than 75 mole % of the PIB molecules of the composition. Additionally, no more than 10 mole % of the PIB molecules of the composition have tetra-substituted double bonds, while the composition is further characterized by having a polydispersity of no more than 2.7 and in that the composition has a kinematic viscosity in the range of 3000 cSt to 5000 cSt, a number average molecular weight, Mn, in the range of 2800 Daltons to 4000 Daltons and a ratio of Mn:PDI of greater than 1100.
    Type: Application
    Filed: October 10, 2012
    Publication date: August 21, 2014
    Inventor: Sohel K. Shaikh
  • Patent number: 8809472
    Abstract: A method comprising contacting an olefin in the presence of a catalyst and a melt index modifier (MIM) under conditions suitable to form a polyolefin and recovering the polyolefin, wherein the polyolefin melt index is increased by at least about 25%, wherein the normalized catalyst activity is decreased by less than about 10%, and wherein the MIM is characterized by the general formula R1—HC?CH—R2 or R3R4C?CH2 where R1, R2, R3, R4 are each selected from the group consisting of a non-aromatic organyl group.
    Type: Grant
    Filed: April 26, 2011
    Date of Patent: August 19, 2014
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Elizabeth A. Benham, Charles R. Nease, Max P. McDaniel
  • Patent number: 8765895
    Abstract: The invention relates to a polymer composition that includes a branched alkene which is cationically polymerizable as well as a glass-forming comonomer and/or a vinyl comonomer containing benzocyclobutene as the pendant group. The structure of the polymer composition can take various forms: linear random copolymer, linear block copolymer, star random copolymer, star block copolymer, and other hyperbranched polymers. The copolymer composition can undergoes crosslinking at elevated temperatures (preferably above 180° C.).
    Type: Grant
    Filed: June 25, 2008
    Date of Patent: July 1, 2014
    Assignee: Innolene LLC
    Inventors: Yonghua Zhou, Leonard Pinchuk
  • Publication number: 20140155566
    Abstract: The invention relates to new compounds containing alkyl/alkenyl-cyano-borate or alkyl/alkenyl-cyano-fluoroborate anions, their preparation and their use, in particular as part of electrolyte formulations for electrochemical or optoelectronic devices.
    Type: Application
    Filed: July 6, 2012
    Publication date: June 5, 2014
    Applicant: MERCK PATENT GMBH
    Inventors: Nikolai (Mykola) Ignatyen, Michael Schulte, Kentaro Kawata, Tomohisa Goto, Jan Sprenger, Maik Finze, Walter Frank
  • Patent number: 8697820
    Abstract: Preparation of high-reactivity isobutene homo- or copolymers with a content of terminal vinylidene double bonds per polyisobutene chain end of at least 50 mol % by polymerization of isobutene or isobutene-comprising monomer mixtures in the presence of Lewis acids suitable as polymerization catalysts or of complexes which are effective as polymerization catalysts and are formed from Lewis acids and donors, and in the presence of initiators, wherein the initiators used are organic sulfonic acids Z—SO3H in which the variable Z denotes an alkyl radical, haloalkyl radical, cycloalkyl radical, aryl radical or arylalkyl radical.
    Type: Grant
    Filed: August 7, 2012
    Date of Patent: April 15, 2014
    Assignee: BASF SE
    Inventors: Hannah Maria Koenig, Klaus Muehlbach, Thomas Wettling, Ulrich Eichenauer, Herbert Mayr
  • Publication number: 20140039142
    Abstract: The invention is directed to an extruder (10), particularly for extruding a synthetic rubber product, which comprises a barrel (24), one or several extruder elements (12, 14), particularly one or several extruder screws and/or a kneader elements (14), arranged inside the barrel (24) for conveying the product, optionally an inlet port for feeding a stripping agent into the barrel (24) and an outlet port for removing volatile compounds from the product and, where applicable, the stripping agent. According to the invention a perforated die plate (26) is fixed to the barrel (24) in flow direction before the outlet port. Since the die plate (26) is not fixed to the extruder elements (12, 14) but to the barrel (24) a circumferential clearance between the die plate (26) and the barrel (24) is prevented so that no extruded material is passing the die plate (26) radially outside.
    Type: Application
    Filed: July 22, 2011
    Publication date: February 6, 2014
    Applicant: LANXESS DEUTSCHLAND GMBH
    Inventors: Hanns-Ingolf Paul, Udo Wiesner, Jörg Kirchhoff, Thomas König, Klemens Kohlgrüber
  • Patent number: 8637619
    Abstract: Preparation of high-reactivity isobutene homo- or copolymers with a content of terminal vinylidene double bonds per polyisobutene chain end of at least 50 mol % and a polydispersity of preferably 1.05 to less than 3.5, by polymerizing isobutene or an isobutene-comprising monomer mixture in the presence of an aluminum trihalide-donor complex effective as a polymerization catalyst or of an alkylaluminum halide-donor complex, especially of an aluminum trichloride-donor complex, said complex comprising, as the donor, an organic compound with at least one ether function or a carboxylic ester function.
    Type: Grant
    Filed: November 2, 2012
    Date of Patent: January 28, 2014
    Assignee: BASF SE
    Inventors: Hannah Maria Koenig, Klaus Muelbach, Matthias Kiefer, Sergei V. Kostjuk, Irina Vasilenko, Alexander Frolov
  • Publication number: 20130317189
    Abstract: A polyisobutylene composition has polyisobutylene molecules with a first portion having a alpha vinylidene molecules, a second portion having beta vinylidene molecules, and a third portion having internal vinylidene molecules. The first portion has less than 75% of the polyisobutylene molecules of the composition. A total of the first portion and the. second portion is less than 90% of the polyisobutylene molecules of the composition. The third portion is more than 3% of the polyisobutylene molecules of the composition. A process for forming this polyisobutylene polymer composition passes an isobutylene through a fixed bed reactor having a boron trifluoride/alcohol complex therein so as to produce the polyisobutylene composition.
    Type: Application
    Filed: June 18, 2013
    Publication date: November 28, 2013
    Applicant: PETROCHEMICAL SUPPLY, INC.
    Inventor: C. Edward BAXTER, JR.
  • Patent number: 8592527
    Abstract: Provided herein are vinyl ether end-functionalized polyolefins and methods for producing the same.
    Type: Grant
    Filed: June 14, 2010
    Date of Patent: November 26, 2013
    Assignee: University of Southern Mississippi
    Inventors: Robson F. Storey, David L. Morgan
  • Patent number: 8592538
    Abstract: Azeotropic or azeotrope-like compositions of the present technology include methyl chloride and at least one hydrofluorocarbon or hydrofluoro-olefin. In some examples, the at least one hydrofluorocarbon or hydrofluoro-olefin can be selected from the group consisting of 1,1,1,2-tetrafluoroethane and 1,3,3,3-tetrafluoropropene. The azeotropic or azeotrope-like compositions can be used as solvents or diluents in polymerization processes, including slurry polymerization processes.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: November 26, 2013
    Assignee: Honeywell International Inc.
    Inventors: Raymond Hilton Thomas, Hang T. Pham, Rajiv Ratna Singh, Natalie Merrill
  • Patent number: 8563098
    Abstract: An inflatable article is provided with a layer impermeable to inflation gases. The layer has an elastomer composition that includes at least, as a predominant elastomer by weight, a thermoplastic styrene (TPS) elastomer and a platy filler. The platy filler has an equivalent diameter (Dv (0.5)) of between 20 and 45 micrometers, and has a shape factor (F) greater than 65.
    Type: Grant
    Filed: July 22, 2010
    Date of Patent: October 22, 2013
    Assignees: Compagnie Generale des Etablissements Michelin, Michelin Recherche et Technique S.A.
    Inventors: Vincent Abad, Emmanuel Custodero, Vincent Lemal
  • Publication number: 20130267669
    Abstract: Provided herein are methods for the preparation of telechelic polyolefins via polymerization reaction with a terpene initiator.
    Type: Application
    Filed: June 5, 2013
    Publication date: October 10, 2013
    Inventors: Casey D. Stokes, Young Chang
  • Patent number: 8524859
    Abstract: In the production of isobutylene-based elastomers the product obtained from the polymerization process is often in the form of a stream. Described herein are an apparatus and a process for removal of hydrocarbon liquids from the elastomer. The process comprises the steps of obtaining a stream comprising hydrocarbon liquids, either solvents or diluents, and an isobutylene-based elastomer; passing the stream through a kneader to volatize the hydrocarbon liquids from the elastomer.
    Type: Grant
    Filed: March 23, 2011
    Date of Patent: September 3, 2013
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Yu Feng Wang, Richard C-M Yeh
  • Patent number: 8524843
    Abstract: In an embodiment, the present invention provides a process for the liquid phase polymerization of isobutylene to manufacture highly reactive PIB oligomers having Mn under 1000, using a catalyst composition comprising a Friedel-Crafts catalyst and a complexing agent, in the presence of a chain transfer agent. The process advantageously uses short residence times for the isobutylene in the polymerization reaction zone as well as a chain transfer agent selected from: ?-DIB and ?-DIB and mixtures thereof.
    Type: Grant
    Filed: June 5, 2012
    Date of Patent: September 3, 2013
    Assignee: TPC Group LLC
    Inventors: Sohel K. Shaikh, Rex Lawson
  • Patent number: 8492491
    Abstract: Provided herein are methods for the preparation of telechelic polyolefins via polymerization reaction with a terpene initiator.
    Type: Grant
    Filed: June 10, 2010
    Date of Patent: July 23, 2013
    Assignee: Chevron Oronite Company LLC
    Inventors: Casey D. Stokes, Young A. Chang
  • Publication number: 20130041121
    Abstract: Preparation of high-reactivity isobutene homo- or copolymers with a content of terminal vinylidene double bonds per polyisobutene chain end of at least 50 mol % by polymerization of isobutene or isobutene-comprising monomer mixtures in the presence of Lewis acids suitable as polymerization catalysts or of complexes which are effective as polymerization catalysts and are formed from Lewis acids and donors, and in the presence of initiators, wherein the initiators used are organic sulfonic acids Z—SO3H in which the variable Z denotes an alkyl radical, haloalkyl radical, cycloalkyl radical, aryl radical or arylalkyl radical.
    Type: Application
    Filed: August 7, 2012
    Publication date: February 14, 2013
    Applicant: BASF SE
    Inventors: Hannah Maria KÖNIG, Klaus Mühlbach, Thomas Wettling, Ulrich Eichenauer, Herbert Mayr
  • Patent number: 8362153
    Abstract: The present invention provides for polyisobutenyl sulfonates, methods for preparing them, and composition employing them; wherein said polyisobutenyl sulfonates have improved low temperature and high temperature viscometric properties. The polyisobutenyl sulfonates are prepared by sulfonating polyisobutene and reacting the polyisobutenyl sulfonate with an alkali metal or alkaline earth metal, wherein the polyisobutene is characterized by having at least 90 mole percent methyl-vinylidene, a number average molecular weight of about 350 to 5,000, and a ratio of weight average molecular weight to number average molecular weight Mw/Mn of from about 1.01 to about 1.4.
    Type: Grant
    Filed: December 15, 2006
    Date of Patent: January 29, 2013
    Assignee: Chevron Oronite Company LLC
    Inventor: James J. Harrison
  • Patent number: 8349977
    Abstract: Preparation of high-reactivity isobutene homo- or copolymers with a content of terminal vinylidene double bonds per polyisobutene chain end of at least 50 mol % and a polydispersity of preferably 1.05 to less than 3.5, by polymerizing isobutene or an isobutene-comprising monomer mixture in the presence of an aluminum trihalide-donor complex effective as a polymerization catalyst or of an alkylaluminum halide-donor complex, especially of an aluminum trichloride-donor complex, said complex comprising, as the donor, an organic compound with at least one ether function or a carboxylic ester function.
    Type: Grant
    Filed: February 17, 2011
    Date of Patent: January 8, 2013
    Assignee: BASF SE
    Inventors: Hannah Maria Koenig, Klaus Muelbach, Matthias Kiefer, Sergei V. Kostjuk, Irina Vasilenko, Alexander Frolov
  • Patent number: 8344073
    Abstract: Provided herein are telechelic polymers and methods for producing the same. In some embodiments, provided herein are compounds having the formula and methods for producing the same.
    Type: Grant
    Filed: January 16, 2009
    Date of Patent: January 1, 2013
    Assignee: The University of Southern Mississippi
    Inventors: Robson F. Storey, David L. Morgan
  • Publication number: 20120329973
    Abstract: The present invention discloses an initiating system for cationic polymerization and a polymerization process. The present application relates to an initiating system for cationic polymerization of cationic-polymerizable monomers, and a process for cationic polymerization of cationic-polymerizable monomers by using the initiating system. The present invention particular involves an initiating system for cationic polymerization of cationic-polymerizable monomers in an aqueous reaction medium, and a process for cationic polymerization of cationic-polymerizable monomers by using the initiating system in an aqueous reaction medium.
    Type: Application
    Filed: September 21, 2010
    Publication date: December 27, 2012
    Inventors: Yixian Wu, Qiang Huang, Han Zhou, Ruting Jin, Ping He
  • Publication number: 20120316304
    Abstract: In an embodiment, the present invention provides a process for the liquid phase polymerization of isobutylene to manufacture highly reactive PIB oligomers having Mn under 1000, using a catalyst composition comprising a Friedel-Crafts catalyst and a complexing agent, in the presence of a chain transfer agent. The process advantageously uses short residence times for the isobutylene in the polymerization reaction zone as well as a chain transfer agent selected from: ?-DIB and ?-DIB and mixtures thereof.
    Type: Application
    Filed: June 5, 2012
    Publication date: December 13, 2012
    Inventors: Sohel K. SHAIKH, Rex Lawson
  • Patent number: 8247508
    Abstract: An isobutylene-based polymer comprising a structural unit represented by the following formula (1): and a structural unit represented by the following formula (2): wherein X represents a divalent group; Y represents a substituted or unsubstituted alicyclic group having an unsaturated bond in the ring; and n represents 0 or 1.
    Type: Grant
    Filed: May 27, 2010
    Date of Patent: August 21, 2012
    Assignee: JX Nippon Oil & Energy Corporation
    Inventors: Tsutomu Takashima, Akira Shiibashi, Tsuyoshi Yamaguchi
  • Publication number: 20120142864
    Abstract: Provided herein are methods for preparing vinylidene-terminated polyolefins. Further, provided herein are novel sulfide-terminated polyolefins of the formula: wherein R1 is a polyolefin group and R2 is hydrocarbyl; and methods for producing the same.
    Type: Application
    Filed: February 14, 2012
    Publication date: June 7, 2012
    Applicant: CHEVRON ORONITE COMPANY LLC
    Inventor: Casey D. Stokes
  • Publication number: 20120123069
    Abstract: The invention relates to a method for controlling properties of a polyolefin. More particularly, the invention relates to a method for controlling certain properties of an ethylene-butene copolymer and compositions thereof using isobutylene and/or other C4 components.
    Type: Application
    Filed: October 18, 2011
    Publication date: May 17, 2012
    Inventors: Michael C. Bulawa, Periagaram S. Ravishankar, Anthony J. Dias
  • Patent number: 8163856
    Abstract: In an embodiment, a method is disclosed to increase the activity of an ionic liquid catalyst comprising emulsifying the ionic liquid catalyst with one or more liquid components. In an embodiment, a method is disclosed comprising introducing into a reaction zone a monomer feed and a reduced amount of ionic liquid catalyst and controlling an amount of shear present in the reaction zone to maintain a desired conversion reaction of the monomer. In an embodiment, a catalyzed reaction system is disclosed comprising a reactor configured to receive one or more liquid components and ionic liquid catalyst; a device coupled to the reactor for adding high shear to the liquid components and ionic liquid catalyst; and a controller coupled to the device for adding high shear and configured to control the amount of shear added to a catalyzed reaction zone to maintain a conversion reaction.
    Type: Grant
    Filed: April 25, 2011
    Date of Patent: April 24, 2012
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Lee H. Bergman, Kenneth D. Hope, Elizabeth A. Benham, Donald A. Stern
  • Publication number: 20120071619
    Abstract: In the production of isobutylene-based elastomers the product obtained from the polymerization process is often in the form of a stream. Described herein are an apparatus and a process for removal of hydrocarbon liquids from the elastomer. The process comprises the steps of obtaining a stream comprising hydrocarbon liquids, either solvents or diluents, and an isobutylene-based elastomer; passing the stream through a kneader to volatize the hydrocarbon liquids from the elastomer.
    Type: Application
    Filed: March 23, 2011
    Publication date: March 22, 2012
    Inventors: Yu Feng WANG, Richard C-M Yeh
  • Patent number: 8124693
    Abstract: Various novel block cationomers comprising polyisobutylene (PIB) and poly(2-dimethylamino)ethyl methacrylate) (PDMAEMA) segments have been synthesized and characterized. The specific targets were various molecular weight diblocks (PDMAEMA+) and triblocks (PDMAEMA+-b-PIB-b-PDMAEMA+) with the PIB blocks in the DPn=50-200 (Mn=3,000-9,000 g/mol) range connected to blocks of PDMAEMA+ cations in the DPn=5-20 range. The overall synthetic strategy for the preparation of these block cationomers comprised four steps: 1) Synthesis by living cationic polymerization of mono- and di-allyltelechelic polyisobutylenes, 2) End group transformation to obtain PIBs fitted with termini capable of mediating the atom transfer radical polymerization (ATRP) of DMAEMA, 3) ATRP of DMAEMA and 4) Quaternization of PDMAEMA to PDMAEMA+I? by CH3I. Kinetic and model experiments provided guidance to develop convenient synthesis methods.
    Type: Grant
    Filed: November 28, 2006
    Date of Patent: February 28, 2012
    Assignee: The University of Akron
    Inventors: Joseph P. Kennedy, Zheng Fang
  • Patent number: 8092821
    Abstract: According to an aspect of the present invention, implantable or insertable medical devices are provided, which contain at least one polymeric region in contact with a metallic region. The polymeric region contains at least one block copolymer that contains at least one low Tg block and at least one high Tg block. The polymeric region contains at least one polymer that contains at least one adhesion promoting group selected from one or more of halo-silane, alkoxy-silane, epoxy, anhydride, phenoxy, hydroxyl, amino, sulfonate and carboxyl groups, which at least one polymer may correspond to the block copolymer, a supplemental polymer, or both.
    Type: Grant
    Filed: June 1, 2007
    Date of Patent: January 10, 2012
    Assignee: Boston Scientific Scimed, Inc.
    Inventor: Frederick H. Strickler
  • Publication number: 20110201772
    Abstract: Preparation of high-reactivity isobutene homo- or copolymers with a content of terminal vinylidene double bonds per polyisobutene chain end of at least 50 mol % and a polydispersity of preferably 1.05 to less than 3.5, by polymerizing isobutene or an isobutene-comprising monomer mixture in the presence of an aluminum trihalide-donor complex effective as a polymerization catalyst or of an alkylaluminum halide-donor complex, especially of an aluminum trichloride-donor complex, said complex comprising, as the donor, an organic compound with at least one ether function or a carboxylic ester function.
    Type: Application
    Filed: February 17, 2011
    Publication date: August 18, 2011
    Applicant: BASF SE
    Inventors: Hannah Maria König, Klaus Mühlbach, Matthias Kiefer, Sergei V. Kostjuk, Irina Vasilenko, Alexander Frolov
  • Patent number: 7981991
    Abstract: Methods for producing elastomers or elastomeric compositions are provided. One or more C4 to C7 isoolefins and one or more comonomers can be polymerized in the presence of a diluent comprising one or more hydrofluorocarbons to provide a slurry comprising polymer product, unreacted monomer and the diluent. The slurry can be extruded to separate at least a portion of the diluent from the polymer product. The separated diluent can be recycled for polymerizing the one or more C4 to C7 isoolefins.
    Type: Grant
    Filed: April 20, 2007
    Date of Patent: July 19, 2011
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Michael F. McDonald, Scott T. Milner, Timothy D. Shaffer, Robert N. Webb
  • Patent number: 7960491
    Abstract: In an isoolefin-diolefin rubber production process (e.g. a butyl rubber production process), the cold rubber slurry produced in the reaction vessel is transported from the reaction vessel to the flash tank during which time the cold slurry may be expressed to separate at least part of the cold liquid reaction medium from the isoolefin-diolefin rubber. The separated cold liquid reaction medium is transported off stream, for example by a mechanical filter, where it can be recycled back into the reaction vessel and/or where it can be used to cool a feed stream or streams of the reaction components. The isoolefin-diolefin rubber and the residual liquid reaction medium are transported to a flash tank for further processing. The ability to separate and recycle cold liquid reaction medium makes the process more economical.
    Type: Grant
    Filed: October 27, 2009
    Date of Patent: June 14, 2011
    Assignee: LANXESS Inc.
    Inventors: John Lovegrove, Hans-Juergen Mick
  • Patent number: 7960459
    Abstract: The present invention has its object to provide a curable composition which comprises a reactive silyl group-containing organic polymer, does not contain, as a silanol condensation catalyst, any organotin type curing catalyst currently of concern because of the toxic feature thereof, is excellent in surface curability and depth curability and, further, can provide cured products excellent in adhesiveness; the above object can be achieved by a curable composition which comprises: an organic polymer (A) containing a silicon-containing group capable of crosslinking under siloxane bond formation; and a guanidine compound (B-1), as a silanol condensation catalyst (B), represented by the general formula (1): R1N?C(NR12)2??(1) (wherein one of the five R1s is an aryl group and the other four R1s each independently is a hydrogen atom or a hydrocarbon group in which the carbon atom at position 1 is saturated).
    Type: Grant
    Filed: February 9, 2007
    Date of Patent: June 14, 2011
    Assignee: Kaneka Corporation
    Inventors: Noriko Noro, Toshihiko Okamoto, Ayako Yano, Yoshikazu Morii
  • Patent number: 7928178
    Abstract: The production of a protein free synthetic polyisoprene which has both low levels of chemical impurities and good physical properties has yet to be realized. It has now been envisioned that the use of neodymium catalyzed polyisoprene will offer the combined advantages of both a clean, as well as, high cis-1,4 polymer. Synthesis of polyisoprene rubber using a neodymium based catalyst system is described.
    Type: Grant
    Filed: June 15, 2004
    Date of Patent: April 19, 2011
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Michael Lester Kerns, Michael Joseph Rachita
  • Patent number: 7893176
    Abstract: The disclosure provides for a process and polymerization system to produce isoolefin polymers (72) utilizing polymorphogenates (16, 26) in the catalyst system to control polydispersity (MWD). The disclosure also provides a catalyst system (20) comprising a plurality of active catalyst complex species (34) formed by combination of a Lewis acid (24), an initiator (22) and a polymorphogenate (26), as well as polymers made using the catalyst system or process. The polymorphogenate (16, 26) can promote or mimic the formation of different active catalyst complex species (34) having different polymerization rates, i.e. different rates of propagation, chain transfer, or termination, as observed by different polydispersities resulting from the presence of relatively different proportions of the polymorphogenate.
    Type: Grant
    Filed: March 23, 2007
    Date of Patent: February 22, 2011
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Timothy D. Shaffer, Michael F. McDonald, David Y. Chung, Robert N. Webb, Deborah J. Davis, Pamela J. Wright
  • Patent number: 7887830
    Abstract: According to an aspect of the present invention, implantable or insertable medical devices are provided, which contain one or more polymeric regions. These polymeric regions, in turn, contain one or more polymers, at least one of which is a copolymer that includes a styrene monomer and an isobutylene monomer. Moreover, the styrene monomer content of the copolymer typically ranges from 25 to 50 mol %.
    Type: Grant
    Filed: February 21, 2008
    Date of Patent: February 15, 2011
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Jeffrey S. Lindquist, Frederick H. Strickler, Mark Boden, Jan Seppala, Paul J. Miller