Added Material Contains Oxygen Compound Patents (Class 526/84)
  • Patent number: 11236182
    Abstract: A solution polymerization process for producing ethylene-based polymer includes introducing ethylene monomer, hydrocarbon solvent, and Ziegler-Natta catalyst into an entrance of a solution polymerization reactor. An ethylene-based polymer is produced by solution polymerizing the ethylene monomer in hydrocarbon solvent. Subsequently, a catalyst deactivator is introduced into x the exit of the solution polymerization reactor, thereby producing hydrochloric acid byproduct. The catalyst deactivator includes long chain carboxylate and at least one cation selected from Groups 1, 2, and 12 of the IUPAC periodic table, with the exception of calcium. The catalyst deactivator reduces the effectiveness of the Ziegler-Natta catalyst and neutralizes the hydrochloric acid by forming a chloride salt other than calcium chloride.
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: February 1, 2022
    Assignee: Dow Global Technologies LLC
    Inventors: Evelyn Auyeung, Sean W. Ewart, Daniela Ferrari, Thomas Davidian, Rony Vanspeybroeck
  • Patent number: 11192969
    Abstract: Disclosed herein is a method for reducing isomerization during the copolymerization of ethylene with an ?-olefin comprising adding to a reactor a reaction mixture comprising hydrogen, ethylene, an ?-olefin, a solvent and a catalyst; where the catalyst does not include a chain shuttling agent that comprises dialkyl zinc; heating the reactor to a first temperature to react the ethylene with the ?-olefin to form a copolymer; discharging from the reactor a first product stream to a heat exchanger; where the product stream comprises the copolymer; adding to the product stream prior to the heat exchanger a first additive that is operative to reduce isomerization of the ?-olefin; and discharging from the heat exchanger a second product stream.
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: December 7, 2021
    Assignee: DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Daniela Ferrari, Sean Ewart, Timothy Gambrel
  • Patent number: 11142593
    Abstract: This disclosure describes polymerization processes and processes for quenching polymerization reactions using reactive particulates, such as lecithin, as quenching agents, typically in solution or bulk polymerization processes.
    Type: Grant
    Filed: January 29, 2019
    Date of Patent: October 12, 2021
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Jay L. Reimers, Yifeng Hong, John R. Hagadorn
  • Patent number: 11092395
    Abstract: Methods of online cleaning of heat exchangers at elevated temperatures are provided. Cleaning of the heat exchanger is achieved through an increasing heat exchanger effluent temperature of a polymer solution together with operating under optimized process conditions provided by a phase diagram constructed for the polymer solution. The separation of polymer from unreacted monomers and solvent in the polymer solution is carried out by raising the temperature of the polymer solution as reactor effluent flowing through the heat exchanger. Then, subsequently and by reducing pressure of the heat exchanger effluent, the polymer solution separates into two liquid phases.
    Type: Grant
    Filed: October 17, 2018
    Date of Patent: August 17, 2021
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Brian R. Greenhalgh, Ronnie D. Bryant, Allison C. Buenemann, Benjamin C. Duff, Philip M. Duvall, Joseph A. Moebus
  • Patent number: 9546246
    Abstract: Polymer complex obtained by polymerization of water-soluble monomers: in the presence of a host polymer comprising vinylamine functions and of a non-polymeric transfer agent, and in the absence of branching or crosslinking agent of ethylenic polyfunctional type.
    Type: Grant
    Filed: July 24, 2014
    Date of Patent: January 17, 2017
    Assignee: S.P.C.M. SA
    Inventors: René Hund, Gatien Faucher, Damien Fougerousse
  • Patent number: 9458274
    Abstract: A terminal-modified polymer is manufactured by performing a polymerization reaction of a vinyl aromatic monomer, a conjugated diene monomer or both in the presence of an anionic polymerization initiator: and then adding an alkoxy titanium compound thereinto to terminate the polymerization reaction. Alternatively, a terminal-modified polymer can also be manufactured by adding an titanium halide compound instead of the alkoxy titanium compound to terminate the polymerization reaction, and adding for a reaction with a lower alcohol having 1 to 4 carbon atoms. The resulting terminal-modified polymer can improve the dispersibility of silica used as a compounding agent in rubber compositions for automobile pneumatic tires and the like.
    Type: Grant
    Filed: February 21, 2014
    Date of Patent: October 4, 2016
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventors: Kazuya Uenishi, Misao Hiza
  • Patent number: 9458265
    Abstract: A terminal-modified polymer is manufactured by performing a polymerization reaction of a vinyl aromatic monomer, a conjugated diene monomer or both in the presence of an anionic polymerization initiator: and then adding an alkoxy aluminum compound thereinto to terminate the polymerization reaction. Alternatively, a terminal-modified polymer can also be manufactured by adding an aluminum halide compound instead of the alkoxy aluminum compound to terminate the polymerization reaction, and allowing for a reaction with a lower alcohol having 1 to 4 carbon atoms. The resulting terminal-modified polymer can improve the dispersibility of silica used as a compounding agent in rubber compositions for automobile pneumatic tires and the like.
    Type: Grant
    Filed: February 21, 2014
    Date of Patent: October 4, 2016
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventors: Kazuya Uenishi, Misao Hiza
  • Patent number: 9139784
    Abstract: In the solution polymerization of ethylene co and homopolymers the solution leaving the reactor is heated to separate polymer from solvent and residual monomers. Fouling in the heat exchanger may be reduced by adding to the solution from 0.01 to 100 ppm by weight of a polyoxyalkylene compound of the formula HO—(CH2CH2O)M[CH2CH(CH3)O]N(CH2CH2O)PH wherein M, N and P each represent the average number of repeating units and M is from 0 to 20, N is from 2 to 50 and P is from 0 to 20 and passing the solution through a heat exchanger to increase its temperature by at least 20° C.
    Type: Grant
    Filed: December 7, 2011
    Date of Patent: September 22, 2015
    Assignee: NOVA Chemicals (International) S.A.
    Inventors: Philippa Hocking, Fazle Sibtain, Eric Cheluget
  • Patent number: 8987391
    Abstract: A process for the polymerization of one or more monomers wherein at least one anhydride and at least one peroxy compound selected from inorganic peroxides, organic hydroperoxides, and peroxyacids are dosed during the polymerization reaction in a continuous or intermittent fashion to a reaction mixture comprising said monomers.
    Type: Grant
    Filed: June 27, 2011
    Date of Patent: March 24, 2015
    Assignee: Akzo Nobel Chemicals International B.V.
    Inventors: René Gerritsen, Jacobus Schut, Johannes Willibrordus Antonius Overkamp, Johannes Jacobus Theodorus De Jong
  • Patent number: 8981021
    Abstract: Various methods and systems for using oxygen in a polyolefin polymerization reactor system are provided. In certain embodiments, the methods are performed in conjunction with a polymerization reactor system such as a gas-phase reactor system.
    Type: Grant
    Filed: February 21, 2008
    Date of Patent: March 17, 2015
    Assignee: Univation Technologies, LLC
    Inventors: Ronald S. Eisinger, Mark G. Goode
  • Patent number: 8969484
    Abstract: Provided herein are methods for the preparation of mono- and multi-functional telechelic polyolefins via polymerization reaction with a terpene-based initiator.
    Type: Grant
    Filed: July 8, 2011
    Date of Patent: March 3, 2015
    Assignee: Chevron Oronite Company LLC
    Inventors: Casey D. Stokes, Young A. Chang, Patrick J. McDougall
  • Patent number: 8921479
    Abstract: New associative thickening agents belonging to the category of HASEs (Hydrophobically modified Alkali-Soluble Emulsions). These products contain an original associative monomer with a base of alkylcyclohexanol akoxylates. Their thickening power is greater than the HASE associative thickening agents of the prior art containing grafted alkyl phenols. An efficient substitute product is therefore available, which is free of alkyls phenols, matching current market demand.
    Type: Grant
    Filed: November 16, 2012
    Date of Patent: December 30, 2014
    Assignee: Coatex
    Inventors: Jean-Marc Suau, Denis Ruhlmann
  • Patent number: 8895683
    Abstract: In one aspect, a process for the preparation of a superabsorbent polymer is described herein. In some embodiments, the process comprises (I) preparing acrylic acid, wherein the process comprises (a1) provision of a fluid F1 having a composition comprising from about 5 to about 20 wt. % of hydroxypropionic acid, salts thereof, or mixtures thereof; from about 0.1 to about 5 wt. % of inorganic salts; from about 0.1 to about 30 wt. % of organic compounds which differ from hydroxypropionic acid; from 0 to about 50 wt. % of solids; and from about 20 to about 90 wt. % of water; (a2) dehydration of said hydroxypropionic acid to give a fluid F2 containing acrylic acid; and (a3) purification of said fluid F2 to give a purified acrylic acid phase comprising acrylic acid having a purity of at least 70 wt. %; and (II) polymerizing the acrylic acid of (I) to form a superabsorbent polymer.
    Type: Grant
    Filed: May 17, 2013
    Date of Patent: November 25, 2014
    Assignee: Evonik Degussa GmbH
    Inventors: Franz-Felix Kuppinger, Axel Hengstermann, Guido Stochniol, Gunther Bub, Jurgen Mosler, Andreas Sabbagh
  • Patent number: 8871870
    Abstract: Synthesized base resin compositions that include a raw resin and a maleimide and/or bismaleimide monomer as well as compounded varnishes that include a raw resin or synthesized base resin as well as a monomer, flame retardant and initiator as well as prepregs and laminates made using the synthesized base resin and compounded varnishes.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: October 28, 2014
    Assignee: Isola USA Corp.
    Inventors: Guroen He, Tarun Amla, Larry D. Olson, Peggy Conn
  • Patent number: 8816025
    Abstract: There is provided a pressure sensitive adhesive composition and a pressure sensitive adhesive. A pressure sensitive adhesive composition example of the present application can provide a pressure sensitive adhesive having, for example, a high shear resistance together with an excellent peeling property or tacking property with respect to an attachment target surface.
    Type: Grant
    Filed: May 20, 2013
    Date of Patent: August 26, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Jong Rok Jeon, Se Woo Yang, Suk Ky Chang
  • 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: 8633279
    Abstract: A method for continuously producing a thermoplastic resin from a conjugated diene includes: primarily polymerizing a conjugated diene monomer with an aromatic vinyl monomer in a first solvent in a first reactor, and feeding a hydroxyl group-containing polymerization inhibitor and a polar hydrocarbon to the first reactor to prepare a rubber solution; and adding an aromatic vinyl monomer and a monomer copolymerizable with the aromatic vinyl monomer to the rubber solution, and subjecting the mixture to secondary polymerization in a second solvent of the same kind as the first solvent in a second reactor. The method can provide a thermoplastic resin that can have excellent color and low gloss characteristics.
    Type: Grant
    Filed: December 12, 2012
    Date of Patent: January 21, 2014
    Assignee: Cheil Industries Inc.
    Inventors: Jae Keun Hong, Sung Hun Kim, Dong Keun Yoo, Young Kyu Chang
  • Publication number: 20130345373
    Abstract: Catalyst deactivating agents and compositions containing catalyst deactivating agents are disclosed. These catalyst deactivating agents can be used in methods of controlling polymerization reactions, methods of terminating polymerization reactions, methods of operating polymerization reactors, and methods of transitioning between catalyst systems.
    Type: Application
    Filed: June 20, 2012
    Publication date: December 26, 2013
    Applicant: CHEVRON PHILLIPS CHEMICAL COMPANY LP
    Inventors: Max P. McDaniel, Qing Yang, Kathy S. Collins, Tony R. Crain, Timothy O. Odi
  • Patent number: 8598283
    Abstract: Methods for shutting down and restarting polymerization in a gas phase polymerization reactor are provided. The method can include introducing a polymerization neutralizer to the reactor in an amount sufficient to stop polymerization therein. The method can also include stopping recovery of a polymer product from the reactor and stopping introduction of a catalyst feed and a reactor feed to the reactor. The method can also include adjusting a pressure within the reactor from an operating pressure to an idling pressure. The method can also include adjusting a superficial velocity of a cycle fluid through the reactor from an operating superficial velocity to an idling superficial velocity. The method can also include maintaining the reactor in an idled state for a period of time.
    Type: Grant
    Filed: February 17, 2011
    Date of Patent: December 3, 2013
    Assignee: Univation Technologies, LLC
    Inventors: Eric J. Markel, Robert O. Hagerty, Richard B. Pannell, Michael E. Sieloff, Jerome Holveck
  • Patent number: 8524649
    Abstract: An aqueous dispersion of a copolymer with copolymerized units a) of at least one ethylenically unsaturated carboxylic acid, b) of at least one nonionic ethylenically unsaturated surfactant monomer, c) of at least one C1-C2-alkyl methacrylate, d) of at least one C2-C4-alkyl acrylate, where the alkyl chain length averaged over the number of alkyl groups of the alkyl acrylate is 2.1 to 4.0, is described. Following neutralization with alkali, the dispersion serves as associative thickener, in particular for liquid detergent and cleaner formulations. The thickeners are characterized by high transparency and high thickening effect coupled with high shear dilution.
    Type: Grant
    Filed: August 1, 2008
    Date of Patent: September 3, 2013
    Assignee: BASF SE
    Inventors: Reinhold J Leyrer, Kati Schmidt
  • Publication number: 20130211019
    Abstract: A process for the polymerization of one or more monomers wherein at least one anhydride and at least one peroxy compound selected from inorganic peroxides, organic hydroperoxides, and peroxyacids are dosed during the polymerization reaction in a continuous or intermittent fashion to a reaction mixture comprising said monomers.
    Type: Application
    Filed: June 27, 2011
    Publication date: August 15, 2013
    Applicant: AKZO NOBEL CHEMICALS INTERNATIONAL B.V.
    Inventors: René Gerritsen, Jacobus Schut, Johannes Willibrordus Antonius Overkamp, Johannes Jacobus Theodorus De Jong
  • Patent number: 8445617
    Abstract: The invention relates to producing a superabsorbent polymer comprising (I) producing a (meth)acrylic acid comprising the steps of (a) synthesizing a crude (meth)acrylic acid phase; (b) distillatively working-up the crude (meth)acrylic acid phase to obtain a (meth)acrylic acid phase and a dimer phase comprising (meth)acrylic acid dimers and/or (meth)acrylic acid oligomers; (c) splitting at least a part of the (meth)acrylic acid dimers or of the (meth)acrylic acid oligomers or both from the dimer phase to obtain a (meth)acrylic acid-comprising a low boiling phase and a high boiling phase comprising less (meth)acrylic acid than the low boiling phase; (d) separating at least a part of the (meth)acrylic acid from the low boiling phase by forming crystals to obtain a pure (meth)acrylic acid, and a residue; (II) polymerizing a monomer phase comprising the pure (meth)acrylic acid to obtain a polymer phase; and (III) working-up the polymer phase to obtain the polymer.
    Type: Grant
    Filed: November 5, 2012
    Date of Patent: May 21, 2013
    Assignee: Evonik Degussa GmbH
    Inventors: Torsten Balduf, Gunther Bub, Jurgen Mosler, Andreas Sabbagh, Jurgen Kohn, Arndt Selbach
  • Patent number: 8362155
    Abstract: [Problem] To provide a conjugated diene polymer cyclized product free from coloring, a conjugated diene polymer cyclized product that has a narrow molecular weight distribution and is free from coloring, and a method for producing these conjugated diene polymer cyclized products. [Means for Resolution] A conjugated diene polymer cyclized product having a Gardner color scale of not more than 3.0. A conjugated diene polymer cyclized product having a Gardner color scale of not more than 3.0 and a ratio of weight average molecular weight/number average molecular weight of not more than 1.5. A method for producing a conjugated diene polymer cyclized product includes adding water to a conjugated diene polymer solution obtained by polymerizing a conjugated diene in a solvent by using an organoalkali metal compound as an initiator, thereby terminating the polymerization and then subjecting the subject conjugated diene polymer to a cyclization reaction.
    Type: Grant
    Filed: June 13, 2005
    Date of Patent: January 29, 2013
    Assignee: Zeon Corporation
    Inventor: Toshio Kase
  • Publication number: 20130012662
    Abstract: Provided herein are methods for the preparation of mono- and multi-functional telechelic polyolefins via polymerization reaction with a terpene-based initiator.
    Type: Application
    Filed: July 8, 2011
    Publication date: January 10, 2013
    Inventors: Casey D. Stokes, Young A. Chang, Patrick J. McDougall
  • Publication number: 20120329962
    Abstract: Methods for shutting down and restarting polymerization in a gas phase polymerization reactor are provided. The method can include introducing a polymerization neutralizer to the reactor in an amount sufficient to stop polymerization therein. The method can also include stopping recovery of a polymer product from the reactor and stopping introduction of a catalyst feed and a reactor feed to the reactor. The method can also include adjusting a pressure within the reactor from an operating pressure to an idling pressure. The method can also include adjusting a superficial velocity of a cycle fluid through the reactor from an operating superficial velocity to an idling superficial velocity. The method can also include maintaining the reactor in an idled state for a period of time.
    Type: Application
    Filed: February 17, 2011
    Publication date: December 27, 2012
    Applicant: UNIVATION TECHNOLOGIES, LLC
    Inventors: Eric J. Markel, Robert O. Hagerty, Richard B. Pannell, Michael E. Sieloff, Jerome Holveck
  • Patent number: 8309668
    Abstract: The present invention relates to a process for producing a superabsorbent a polymer comprises (I) producing a pure (meth)acrylic acid comprising the steps of (a) synthesizing a crude (meth)acrylic acid phase; (b) distillatively working-up the crude (meth)acrylic acid phase to obtain a (meth)acrylic acid phase and a dimer phase comprising (meth)acrylic acid dimers or (meth)acrylic acid oligomers or both; (c) splitting at least a part of the (meth)acrylic acid dimers or of the (meth)acrylic acid oligomers or both from the dimer phase to obtain a (meth)acrylic acid-comprising low boiling phase and a high boiling phase comprising less (meth)acrylic acid than the low boiling phase; (d) separating at least a part of the (meth)acrylic acid from the low boiling phase to obtain a pure (meth)acrylic acid, and a residue; (II) polymerizing a monomer phase comprising the pure (meth)acrylic acid to obtain a polymer phase; and (III) working-up the polymer phase to obtain the polymer.
    Type: Grant
    Filed: May 1, 2012
    Date of Patent: November 13, 2012
    Assignee: Evonik Stockhausen GmbH
    Inventors: Torsten Balduf, Günther Bub, Jürgen Mosler, Andreas Sabbagh, Jürgen Kohn, Arndt Selbach
  • Publication number: 20120277385
    Abstract: Catalyst deactivating agents and compositions containing catalyst deactivating agents are disclosed. These catalyst deactivating agents can be used in methods of controlling polymerization reactions, methods of terminating polymerization reactions, methods of operating polymerization reactors, and methods of transitioning between catalyst systems.
    Type: Application
    Filed: April 28, 2011
    Publication date: November 1, 2012
    Applicant: CHEVRON PHILLIPS CHEMICAL COMPANY LP
    Inventors: QING YANG, Max P. McDaniel, Tony R. Crain, Kathy S. Collins
  • Patent number: 8258249
    Abstract: The present invention relates to superabsorbent polymer comprising acrylic acid made by the process comprising the steps of heating an aqueous glycerine solution to form glycerine; transporting the glycerine to the dehydration reactor; dehydrating the glycerine to an acrolein-comprising dehydration product; gas phase oxidating of the acrolein-comprising dehydration product to obtain an acrylic acid-comprising monomer gas; bringing into contact of the monomer gas with a quench agent to obtain an acrylic acid-comprising quench phase; working-up the quench phase to obtain an acrylic acid-comprising monomer phase; and polymerizing the acrylic acid-comprising monomer phase; wherein a plurality of gas bubbles is generated and wherein the dehydration occurs at least partially in the liquid phase. The superabsorbent polymer has certain properties for biodegradability and sustainability. Further, at least about 25% of the acrylic acid is based on glycerine.
    Type: Grant
    Filed: February 17, 2011
    Date of Patent: September 4, 2012
    Assignee: Evonik Stockhausen GmbH
    Inventors: Günther Bub, Jürgen Mosler, Franz-Felix Kuppinger, Andreas Sabbagh, Guido Stochniol, Jörg Sauer, Markus Winterberg, Udo Knippenberg, Günter Latoschinski, Franck Furno, Thorsten Schwärtzke, Jörg Leistner
  • Publication number: 20120184692
    Abstract: The present invention relates to a method for preparing linear alpha-olefins (LAO) by oligomerization of ethylene in the presence of a solvent and homogeneous catalyst, comprising the steps of: (i) feeding ethylene, solvent and catalyst into an oligomerization reactor, (ii) oligomerizing the ethylene in the reactor, (iii) removing a reactor outlet stream comprising solvent, linear alpha-olefins, optionally unreacted ethylene and catalyst from the reactor via a reactor outlet piping system, (iv) dosing at least one additive selected from the group consisting of alcohols, poly-ethylene glycols, polyethylene glycol monoethers, polyethylene glycol diethers, polyamines, amines, amino alcohols and surfactants, (v) transferring the reactor outlet stre con the additive to a catalyst deactivation and removal section, and (vi) deactivating the catalyst with caustic and removing the deactivated catalyst from the reactor outlet stream, wherein the residence time of the additive in the reactor outlet stream prior to m
    Type: Application
    Filed: May 28, 2010
    Publication date: July 19, 2012
    Inventors: Peter M. Fritz, Heinz Bölt, Andreas Meiswinkel, Carsten Taube, Florian Winkler, Volker Göke, Wolfgang Müller, Anina Wöhl, Richard Schneider, Uwe Rosenthal, Helmut Fritz, Bernd H. Müller, Normen Peulecke, Stephan Peitz, Bhaskar Reddy Aluri, MOhammed Al-Hazmi, Shahid Majeed Azam, Fuad Mosa, Abdullah Al-Dugathier
  • Patent number: 8148470
    Abstract: This invention relates to a process to make a multimodal polyolefin composition comprising: (i) contacting at least one first olefin monomer with a mixed catalyst system, under polymerization conditions, to produce at least a first polyolefin component having a Mw of 5,000 g/mol to 600,000 g/mol, wherein the mixed catalyst system comprises: (a) at least one polymerization catalyst comprising a Group 4 or Group 5 transition metal; (b) at least one organochromium polymerization catalyst; (c) an activator; and (d) a support material; (ii) thereafter, contacting the first polyolefin component/mixed catalyst system combination with a molecular switch; (iii) contacting the first polyolefin component/mixed catalyst system combination with at least one second olefin monomer, which may be the same or different, under polymerization conditions; and (iv) obtaining a multimodal polyolefin composition.
    Type: Grant
    Filed: November 19, 2010
    Date of Patent: April 3, 2012
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Matthew W. Holtcamp, Matthew S. Bedoya
  • Publication number: 20110306738
    Abstract: Provided herein are methods for the preparation of telechelic polyolefins via polymerization reaction with a terpene initiator.
    Type: Application
    Filed: June 10, 2010
    Publication date: December 15, 2011
    Inventors: Casey D. Stokes, Young A. Chang
  • Patent number: 8013083
    Abstract: A method for inhibiting the premature polymerization of styrenic monomers is disclosed wherein the method comprises adding to said monomers a combination of: (A) at least one inhibitor that is a sulfonic acid compound in a concentration sufficient to initiate cationic polymerization of said styrenic monomers at any point of the manufacturing or purification process and cause a resulting temperature increase; and (B) at least one amine in a concentration sufficient to reduce said cationic polymerization and said temperature increase; whereby an uncontrolled exothermic reaction between said sulfonic acid compound and said styrenic monomers will be prevented.
    Type: Grant
    Filed: January 31, 2006
    Date of Patent: September 6, 2011
    Assignee: ChemTura Corporation
    Inventors: Vilan Kosover, Jesus A. Fabian, Istvan Lippai, Brigitte Benage, Gerald J. Abruscato
  • Publication number: 20110213072
    Abstract: A HASE-type rheology modifier containing an associative monomer which is functionalised by a hydrophobic group of an oxo alcohol base is provided. A method to prepare the HASE rheology modifier and its use in a method to thicken and create a Newtonian rheological profile in an aqueous formulation such as a water based paint is also provided.
    Type: Application
    Filed: February 28, 2011
    Publication date: September 1, 2011
    Applicant: COATEX S.A.S.
    Inventors: Jean-Marc Suau, Denis Ruhlmann
  • Patent number: 8008368
    Abstract: An oil-based ink composition for inkjet recording capable of exhibiting desired properties of drying after print, rubfastness and re-solubility is achieved by performing solubilization on an acrylic resin which is not easily dissolved conventionally. The oil-based ink composition for inkjet printing comprises glycol ether dialkyl ethers as a prime solvent; and an acrylic resin that results from solution polymerization in a solvent of the glycol ether dialkyl ethers by use of a radical polymerization initiator.
    Type: Grant
    Filed: December 21, 2006
    Date of Patent: August 30, 2011
    Assignees: Seiko Epson Corporation, The Inctec Inc.
    Inventors: Seiji Mochizuki, Makoto Otsuki, Masahiro Nakamura, Yukio Sugita, Mitsuyoshi Tamura, Fumie Yamazaki, Tamayo Okahira
  • Publication number: 20110190459
    Abstract: Process to kill a continuous catalyzed olefin liquid phase polymerization in which the catalyst is a Ziegler-Natta or a metallocene catalyst, wherein, a predetermined amount of killing agent is injected into the reactor during at least twice the cycle time of the reactor.
    Type: Application
    Filed: March 29, 2007
    Publication date: August 4, 2011
    Applicant: Total Petrochemicals Research Feluy
    Inventors: Olivier Miserque, Alain Brusselle, Vincent Warichet
  • Patent number: 7981990
    Abstract: A method comprising: (a) forming a living liquid polymer, wherein said living liquid polymer is anionically initiated and comprises a cation; (b) adding a functional initiator precursor of the formula FI-H, wherein H is hydrogen and FI is a functional group, said H terminates said living liquid polymer resulting in said liquid polymer having a number average molecular weight of about 20,000 (g/mole) to about 100,000 (g/mole), and said FI and said cation form a functional initiator; (c) adding monomer, wherein said functional initiator initiates anionic polymerization of said monomer; and (d) terminating the polymerization reaction initiated in step (c). Steps (a) through (c) may be conducted in a single reactor, allowing a liquid polymer to be dispersed in a functionalized polymer in a single polymerization step. Thus, the liquid polymer does not have to be handled separately and processing efficiency is improved.
    Type: Grant
    Filed: August 28, 2008
    Date of Patent: July 19, 2011
    Assignee: Bridgestone Corporation
    Inventor: Yuan-Yong Yan
  • Patent number: 7973111
    Abstract: Disclosed is a method to safely terminate a runaway reaction within a reaction vessel, comprising: sensing an increase in pressure in the reaction vessel, opening a barrier blocking a flow path into the reactor, wherein the barrier opening is achieved via a mechanical response to the sensed increase in pressure, and injecting a kill agent into the reaction vessel via the opened flow path, thereby terminating the reaction. Also disclosed is a system for performing the method. The system functions without an external electrical source and is therefore compliant with ASME standards.
    Type: Grant
    Filed: May 28, 2004
    Date of Patent: July 5, 2011
    Assignee: Fina Technology, Inc.
    Inventors: Thanh Tri Nguyen, Tom Eugene Cushman, John Stevenson, Alan Bitzer
  • Patent number: 7964677
    Abstract: Method of changing from a polymerization using a first catalyst to a polymerization using a second catalyst which is incompatible with the first catalyst in a gas-phase reactor, which comprises the steps a) stopping of the polymerization reaction using the first catalyst, b) flushing of the reactor under polymerization conditions with at least one deactivating agent comprising a volatile constituent and a nonvolatile constituent in a weight ratio of from 0.1 to 1000, c) introduction of the second catalyst into the reactor and d) continuation of the polymerization using the second catalyst.
    Type: Grant
    Filed: November 10, 2006
    Date of Patent: June 21, 2011
    Assignee: Basell Polyolefine GmbH
    Inventors: Shahram Mihan, Rainer Karer
  • Patent number: 7879958
    Abstract: A method for quenching an active polymerization mixture, the method comprising introducing a polyhydroxy compound to an active polymerization mixture.
    Type: Grant
    Filed: August 7, 2007
    Date of Patent: February 1, 2011
    Assignee: Bridgestone Corporation
    Inventors: Steven Luo, Timothy L. Tartamella, Mark W. Smale, Kevin M. McCauley, Zhong-Ren Chen
  • Patent number: 7868103
    Abstract: A method for producing a polybutadiene, which comprises subjecting 1,3-butadiene to cis-1,4 polymerization, and subsequently subjecting a resultant in the resulting polymerization system to syndiotactic-1,2 polymerization, the method being characterized in that there is added, after the polymerization, a halogen acid or halogen acid salt.
    Type: Grant
    Filed: May 17, 2007
    Date of Patent: January 11, 2011
    Assignee: Ube Industries, Ltd.
    Inventors: Koji Shiba, Michinori Suzuki, Masato Murakami, Yuji Matsudaira
  • Patent number: 7834111
    Abstract: A terminating agent and a method for preparing an anionic polymer are provided. The terminating agent includes a carbohydrate, which is a solid substantially insoluble in a solvent and is used for terminating an anionic polymerization of a polymer. Another aspect of the method includes steps which provide an initiator for initiating an anionic polymerization, adding a terminating agent for terminating the anionic polymerization and forming a complex, wherein the terminating agent is a carbohydrate, and an alkali metal ion is removed by a solid-liquid separation process.
    Type: Grant
    Filed: January 9, 2008
    Date of Patent: November 16, 2010
    Assignee: TSRC Corporation
    Inventors: Chi-Chen Hsieh, Chih-Kuang Tsai, Tsung-Yuan Wang
  • Publication number: 20100286348
    Abstract: Vulcanizates with desirable properties can be obtained from compounds incorporating polymers that include hydroxyl group-containing aryl functionalities. The functionalities can be incorporated by using any or all of appropriate initiators, monomers and optional terminating compounds. Such polymers exhibit excellent interactivity with both conventional and non-conventional fillers.
    Type: Application
    Filed: December 28, 2008
    Publication date: November 11, 2010
    Applicant: Bridgestone Corporation
    Inventors: Xiao-Dong Pan, Zengquan Qin, Yuan-Yong Yan, Dennis r. Brumbaugh, Jason T. Poulton
  • Patent number: 7816459
    Abstract: Disclosed is a method for preparing polyolefins containing vinylidine end groups from quasiliving carbocationically terminated polyolefin polymers by contacting the quasiliving carbocationically terminated polymer with quenching agent selected from the group consisting of polypyrrole, polyvinylpyridine, polyphenothiazine, polyoxazine, and polypyrrole-co-thiophene and substituted derivatives thereof.
    Type: Grant
    Filed: February 16, 2006
    Date of Patent: October 19, 2010
    Assignee: Chevron Oronite Company LLC
    Inventor: Casey D. Stokes
  • Patent number: 7794916
    Abstract: A polymer compound having a structure represented by the formula (1) as defined herein at a main chain terminal, and a positive photosensitive composition containing a polymer compound having a structure represented by the following formula (1) as defined herein at a main chain terminal and a photoacid generator capable of generating an acid upon irradiation with actinic rays or radiation.
    Type: Grant
    Filed: November 21, 2007
    Date of Patent: September 14, 2010
    Assignee: FUJIFILM Corporation
    Inventor: Akinori Shibuya
  • Patent number: 7728083
    Abstract: Disclosed herein is a method for inhibiting and retarding the premature polymerization and the polymer growth of vinyl aromatic monomers wherein the method comprises adding to said monomers an effective amount of an inhibitor and retarder blend comprising: (A) at least one aromatic sulfonic acid; (B) at least one amine; (C) at least one nitrophenol; and (D) at least one member of the group consisting of nitroxy radical-containing compounds and nitrosoanilines.
    Type: Grant
    Filed: January 27, 2010
    Date of Patent: June 1, 2010
    Assignee: Chemtura Corporation
    Inventors: Vilan Kosover, Jesus R. Fabian, Istvan Lippai, Brigitte Benage, Gerald J. Abruscato
  • Patent number: 7696290
    Abstract: Disclosed herein is a method for inhibiting and retarding the premature polymerization and the polymer growth of vinyl aromatic monomers wherein the method comprises adding to said monomers an effective amount of an inhibitor and retarder blend comprising: (A) at least one aromatic sulfonic acid; (B) at least one amine; (C) at least one nitrophenol; and (D) at least one member of the group consisting of nitroxy radical-containing compounds and nitrosoanilines.
    Type: Grant
    Filed: June 28, 2005
    Date of Patent: April 13, 2010
    Assignee: Crompton Corporation
    Inventors: Vilan Kosover, Jesus A. Fabian, Istvan Lippai, Brigitte Benage, Gerald J. Abruscato
  • Patent number: 7691952
    Abstract: Disclosed herein is a method for inhibiting and retarding the premature polymerization and the polymer growth of ethylenically unsaturated monomers comprising adding to said monomers an effective amount of at least one inhibitor that is a sulfonated nitrophenol of the formula: wherein: R1, R2, and R3 are independently selected from the group consisting of hydrogen, alkyl, NO2, and SO3H, provided that at least one of R1, R2, and R3 is NO2 and at least one of R1, R2, and R3 is SO3H. In a preferred embodiment, at least one additional inhibitor selected from the group consisting of nitroxyl compounds, nitrosoanilines, nitrophenols, amines, and mixtures thereof is also added.
    Type: Grant
    Filed: June 29, 2005
    Date of Patent: April 6, 2010
    Assignee: Chemtura Corporation
    Inventors: Vilan Kosover, Jesus A. Fabian, Istvan Lippai, Brigitte Benage, Gerald J. Abruscato
  • Patent number: 7683144
    Abstract: The present invention relates to a process and composition for the chain stopping of vinyl chloride polymerization or copolymerization in the presence of a stable free nitroxyl radical and a phenolic antioxidant. A further subject of the invention is the use of a stable free nitroxyl radical together with a phenolic antioxidant as a chain stopping mixture for the vinyl chloride polymerization or copolymerization. A further aspect of the invention is the use of higher sterically hindered nitroxyl radicals alone as chain stopping agents for the vinyl chloride polymerization.
    Type: Grant
    Filed: April 24, 2003
    Date of Patent: March 23, 2010
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Rudolf Pfaendner, Alex Wegmann, Thomas Wannemacher, Dietrich Braun
  • Patent number: 7648817
    Abstract: A positive working resist composition comprises a specific resin. The specific resin comprises: a repeating unit having a first specific group; and a repeating unit having a second specific group, the first specific group being different from the second specific group; and a specific structure in an end terminal of the resin. The specific resin decomposes by action of an acid to increase its solubility in an alkaline developer.
    Type: Grant
    Filed: February 26, 2008
    Date of Patent: January 19, 2010
    Assignee: FUJIFILM Corporation
    Inventors: Takayuki Kato, Akinori Shibuya
  • Patent number: 7629422
    Abstract: Embodiments of our invention relate to processes for transitioning among polymerization catalyst systems including processes for transitioning among olefin polymerization reactions using Ziegler-Natta catalysts systems and chromium-based catalyst systems. Among embodiments contemplated are a method of transitioning from a first catalyst to a second catalyst in an olefin polymerization reactor, comprising: adding to the reactor a deactivating agent (DA) selected from one of carbon monoxide, carbon dioxide, or combinations thereof; adding to the reactor a cocatalyst adsorbing agent (CAA), comprising an inorganic oxide selected from one of silica, alumina or combinations thereof; wherein the first catalyst comprises at least one conventional Ziegler-Natta catalyst, and a cocatalyst, wherein the second catalyst comprises at least one chromium-based catalyst, wherein the reactor is a gas-phase, fluidized bed reactor, and wherein the CAA is substantially free of transition metals.
    Type: Grant
    Filed: December 20, 2005
    Date of Patent: December 8, 2009
    Assignee: Univation Technologies, LLC
    Inventors: Mark G. Goode, Kevin J. Cann, F. David Hussein, Robert L. Santana, David C. Schutz, Agapios K. Agapiou