Added Material Contains Nitrogen Compound Patents (Class 526/83)
  • Patent number: 10723678
    Abstract: The presently disclosed subject matter provides a method for inhibiting the formation of popcorn polymer in the vapor phase of a butadiene extraction/purification system. In a non-limiting embodiment, a method for inhibiting the formation of popcorn polymer includes injecting nitric oxide into the upper portion, i.e., headspace of a butadiene distillation column.
    Type: Grant
    Filed: November 8, 2016
    Date of Patent: July 28, 2020
    Assignee: SABIC GLOBAL TECHNOLOGIES B.V.
    Inventors: Theo Van Der Kort, Kuldeep Wadhwa, Anthoni Van Zijl
  • Patent number: 10696628
    Abstract: Amines and amine derivatives that improve the buffering range, and/or reduce the chelation and other negative interactions of the buffer and the system to be buffered. The reaction of amines or polyamines with various molecules to form polyamines with differing pKa's will extend the buffering range, derivatives that result in polyamines that have the same pKa yields a greater buffering capacity. Derivatives that result in zwitterionic buffers improve yield by allowing a greater range of stability.
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: June 30, 2020
    Assignee: TPAT IP LLC
    Inventor: Thomas Daly
  • Patent number: 10259783
    Abstract: Amines and amine derivatives that improve the buffering range, and/or reduce the chelation and other negative interactions of the buffer and the system to be buffered. The reaction of amines or polyamines with various molecules to form polyamines with differing pKa's will extend the buffering range, derivatives that result in polyamines that have the same pKa yields a greater buffering capacity. Derivatives that result in zwitterionic buffers improve yield by allowing a greater range of stability.
    Type: Grant
    Filed: June 8, 2017
    Date of Patent: April 16, 2019
    Inventor: Thomas P. Daly
  • Patent number: 10221255
    Abstract: A composition for the immediate stopping of a free-radical polymerization comprises a) an inhibitor for the free-radical polymerization selected from among phenothiazines, b) an aprotic solvent and c) an ionic liquid. It serves to stabilize free-radically polymerizable monomers against free-radical polymerization. For the immediate stopping of free-radical polymerizations, the composition is added to a free-radically polymerizing system.
    Type: Grant
    Filed: June 15, 2016
    Date of Patent: March 5, 2019
    Assignee: BASF SE
    Inventors: Ann-Kathrin Marguerre, Christian Raith, Christof Kujat, Friedrich-Georg Martin, Daher Michael Badine, Karolin Geyer, Ansgar Schaefer, Nikolaus Nestle, Murat Cetinkaya, Eduard Schreiner, Reiner Weiler, Peter Zurowski
  • Patent number: 9926331
    Abstract: The present invention relates to a method for producing anhydrosugar alcohol using an organic additive having one hydroxyl group. The present invention makes it possible to prevent oligomers and polymers from being produced by polymerization of isosorbide during dehydration of sorbitol molecules, and thus solves problems, including a reduction in fluidity in a dehydration reactor, interference with the flow of fluids in the reactor and pipelines, and interference with stirrer operation, which occur due to the oligomers and polymers.
    Type: Grant
    Filed: January 13, 2017
    Date of Patent: March 27, 2018
    Assignee: SK Innovation Co., Ltd.
    Inventors: Sung Real Son, Sang Hye Shin, In Hyoup Song, Suk Joon Hong, Tae Seung Kim, Yoon Jae Yim
  • Patent number: 9725649
    Abstract: The present invention relates to additive composition for controlling and inhibition of polymerization of aromatic vinyl monomers including styrene comprising (a) one or more of nitroxide (i.e. nitroxyl) compounds, and characterized in that the said composition further comprises one or more of (b) aliphatic amines selected from a group comprising tertiary amines, secondary amines and primary amines. In one embodiment, the present invention also relates to method of use of presently provided composition. In another embodiment, the present invention also relates to method of controlling and inhibiting polymerization of aromatic vinyl monomers including styrene by employing presently provided composition. In still another embodiment, the present invention also relates to method of preparation of presently provided composition.
    Type: Grant
    Filed: November 21, 2012
    Date of Patent: August 8, 2017
    Assignee: Dorf Ketal Chemicals (India) Private Limited
    Inventor: Mahesh Subramaniyam
  • Patent number: 9676709
    Abstract: Amines and amine derivatives that improve the buffering range, and/or reduce the chelation and other negative interactions of the buffer and the system to be buffered. The reaction of amines or polyamines with various molecules to form polyamines with differing pKa's will extend the buffering range, derivatives that result in polyamines that have the same pKa yields a greater buffering capacity. Derivatives that result in zwitterionic buffers improve yield by allowing a greater range of stability.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: June 13, 2017
    Inventor: Thomas P. Daly
  • Patent number: 9598333
    Abstract: The present invention relates to additive composition and method of use thereof for controlling and inhibition of polymerization and dimerization of aliphatic monomers including butadiene comprising A) one or more of first component selected from a group comprising a) quinone methide (QM), b) quinone methide (QM) derivative including ester derivative of quinone methide, c) nitroxide (i.e. nitroxyl) compounds, and d) mixture thereof; characterized in that the composition further comprises B) one or more of second component selected from amines or polyamines, wherein the amine and polyamine is selected from a group comprising i) oxide treated tertiary amines, ii) hydroxyl alkyl tertiary amines, iii) polyether amines, and iv) mixture thereof.
    Type: Grant
    Filed: March 20, 2014
    Date of Patent: March 21, 2017
    Assignee: Dorf Ketal Chemicals (India) Private Limited
    Inventor: Mahesh Subramaniyam
  • Patent number: 9580385
    Abstract: Amines and amine derivatives that improve the buffering range, and/or reduce the chelation and other negative interactions of the buffer and the system to be buffered. The reaction of amines or polyamines with various molecules to form polyamines with differing pKa's will extend the buffering range, derivatives that result in polyamines that have the same pKa yields a greater buffering capacity. Derivatives that result in zwitterionic buffers improve yield by allowing a greater range of stability.
    Type: Grant
    Filed: July 24, 2015
    Date of Patent: February 28, 2017
    Inventor: Thomas P. Daly
  • Patent number: 9546227
    Abstract: A process for preparing a polydiene, the process comprising the steps of (i) providing conjugated diene monomer; (ii) charging a nickel-based catalyst system to the conjugated diene monomer; and (iii) charging a modulating Lewis base to the conjugated diene monomer, to thereby polymerize the conjugated diene monomer in the presence of the modulating Lewis base, where said step of charging a modulating Lewis base is separate from said step of charging a nickel-based catalyst, and where said steps of providing conjugated diene monomer, charging a nickel-based catalyst system and charging a Lewis base form a polymerization mixture that includes less than 20% by weight of organic solvent based on the total weight of the polymerization mixture.
    Type: Grant
    Filed: December 30, 2011
    Date of Patent: January 17, 2017
    Assignee: Bridgestone Corporation
    Inventors: Kevin M. McCauley, Steven Luo
  • Patent number: 9334445
    Abstract: The present invention relates to amine based additive composition for controlling and inhibition of polymerization of aromatic vinyl monomers including styrene comprising (a) one or more of nitroxide (i.e. nitroxyl) compounds; and (b) one or more of aromatic nitro compounds, characterized in that the said composition further comprises one or more of (c) amines, wherein said amine is selected from a group comprising (i) hydroxyl alkyl tertiary amines, (ii) tertiary alkyl amines, (iii) hydroxyl alkyl primary amine; and (iv) mixture thereof. In one embodiment, the present invention also relates to method of using presently provided composition. In another embodiment, the present invention also relates to method of controlling and inhibiting polymerization of aromatic vinyl monomers including styrene by employing presently provided composition. In still another embodiment, the present invention also relates to method of preparation of presently provided composition.
    Type: Grant
    Filed: November 16, 2012
    Date of Patent: May 10, 2016
    Assignee: Dorf Ketal Chemicals (India) Private Limited
    Inventor: Mahesh Subramaniyam
  • Patent number: 9221933
    Abstract: The invention concerns a process for the aqueous suspension, micro-suspension, emulsion or micro-emulsion polymerization of at least one halogenated monomer, in particular chlorinated, for example vinyl chloride, by itself or with one or more other vinyl monomers, preferably less than 50% by weight of one or more other vinyl monomers, in which at least one shortstopper and at least one perhalogenate, acting as a whitening agent, are added. The invention also concerns the use of an association of at least one shortstopper and at least one perhalogenate, acting as a whitening agent, in reactions for the polymerization of halogenated monomers. The invention further concerns compositions comprising at least one shortstopper and at least one perhalogenate.
    Type: Grant
    Filed: January 4, 2013
    Date of Patent: December 29, 2015
    Assignee: ARKEMA FRANCE
    Inventors: Christian Bonardi, Isabelle Tartarin, Thierry Pascal, Fabrice Gilis
  • Patent number: 9029479
    Abstract: Process for the preparation of vinyl aromatic (co) polymers grafted on an elastomer in a controlled manner, comprising: dissolving an elastomer functionalized with bromoalkanes and nitroxy radicals, soluble in non-polar solvents, in a liquid phase consisting of a mixture of vinyl aromatic monomer(s)/polymerization solvent; feeding at least one radical initiator to the mixture, containing the functionalized elastomer in solution, and polymerizing the mixture thus obtained at a temperature higher than or equal to 1200 C; recovering the vinyl aromatic (co) polymer obtained after devolatization; and recycling the solvent/monomer(s) mixture, coming from the devolatization, to step (a).
    Type: Grant
    Filed: August 7, 2009
    Date of Patent: May 12, 2015
    Assignee: Polimeri Europa S.p.A.
    Inventors: Gian Tommaso Viola, Leonardo Chiezzi
  • Patent number: 9023580
    Abstract: A method of producing a polymeric compound, including: copolymerizing a monomer containing an —SO2— containing cyclic group with a monomer containing an acid decomposable group which exhibits increased polarity by the action of acid, thereby obtaining the polymeric compound, provided that the polymeric compound comprises no structural unit derived from a monomer that generates acid upon exposure, wherein the copolymerizing is conducted in the presence of 0.001 to 1.0 mol % of a basic compound, based on the monomer containing an —SO2— containing cyclic group.
    Type: Grant
    Filed: November 21, 2012
    Date of Patent: May 5, 2015
    Assignee: Tokyo Ohka Kogyo Co., Ltd.
    Inventors: Daiju Shiono, Tomoyuki Hirano, Takahiro Dazai
  • 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: 8962766
    Abstract: A method for preparing a functionalized polymer, the method comprising the steps of: (i) polymerizing monomers to form a reactive polymer, and (ii) reacting the reactive polymer with a protected polyhydrazone compound.
    Type: Grant
    Filed: September 17, 2012
    Date of Patent: February 24, 2015
    Assignee: Bridgestone Corporation
    Inventors: Steven Luo, Joshua S. Dickstein, Dennis R. Brumbaugh
  • Patent number: 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: 8642704
    Abstract: A functionalized polymer terminated by using an isocyanato alkoxysilane terminating agent. A method of preparing a functionalized polymer comprising the step of contacting a living polymer with an isocyanato alkoxysilane terminating agent.
    Type: Grant
    Filed: May 24, 2010
    Date of Patent: February 4, 2014
    Assignee: Bridgestone Corporation
    Inventors: Christine Rademacher, David F. Lawson, Terrence E. Hogan
  • Patent number: 8481658
    Abstract: A method for transitioning from a Ziegler-Natta to a Phillips catalyst system for the olefin polymerization reaction in one reactor, preferably a gas phase reactor, is described. The method comprises the steps of a) discontinuing a first olefin polymerization reaction performed in the presence of the Ziegler-Natta catalyst system; b) performing a second olefin polymerization reaction in the presence of a further catalyst system comprising catalyst components (A) and (B) producing, respectively, a first and a second polyolefin fraction, wherein the Mw of the first polyolefin fraction is less than the Mw of the second polyolefin fraction and the initial activity of catalyst component (A) exceeds the initial activity of catalyst component (B); and c) performing a third olefin polymerization reaction the presence of the Phillips catalyst system.
    Type: Grant
    Filed: December 17, 2009
    Date of Patent: July 9, 2013
    Assignee: Basell Polyolefine GmbH
    Inventors: Gerhardus Meier, Shahram Mihan
  • 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: 8362156
    Abstract: A method for preparing a functionalized polymer, the method comprising the steps of preparing a reactive polymer and reacting the reactive polymer with a heterocyclic nitrile compound.
    Type: Grant
    Filed: October 14, 2008
    Date of Patent: January 29, 2013
    Assignee: Bridgestone Corporation
    Inventors: Steven Luo, Ryouji Tanaka, Kouichirou Tani
  • 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
  • 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
  • Patent number: 8314189
    Abstract: A method for preparing a functionalized polymer, the method comprising the steps of preparing a reactive polymer and reacting the reactive polymer with a heterocyclic nitrile compound.
    Type: Grant
    Filed: June 23, 2008
    Date of Patent: November 20, 2012
    Assignee: Bridgestone Corporation
    Inventors: Steven Luo, Ryouji Tanaka, Kouichirou Tani
  • 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
  • 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: 8063153
    Abstract: A functionalized polymer includes an elastomer, a terminal functional group including at least one heteroatom, and a unit intermediate the elastomer and the functional group; the intermediate unit includes a terminal moiety which, in its anionic form, is less basic than a secondary amino radical ion. Methods of making the functionalized polymer and of using it with particulate filler to make, e.g., a tire tread composition also are disclosed.
    Type: Grant
    Filed: October 20, 2005
    Date of Patent: November 22, 2011
    Assignee: Bridgestone Corporation
    Inventors: Yuan-Yong Yan, David F. Lawson
  • Patent number: 8013073
    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 a suitable nonaromatic heterocyclic ring quenching agent and substituted derivatives thereof.
    Type: Grant
    Filed: February 16, 2006
    Date of Patent: September 6, 2011
    Assignees: Chevron Oronite Company LLC, The University of Southern Mississippi
    Inventors: Casey D. Stokes, Robson F. Storey
  • 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: 20110207884
    Abstract: Process for the preparation of vinyl aromatic (co) polymers grafted on an elastomer in a controlled manner, comprising: dissolving an elastomer functionalized with bromoalkanes and nitroxy radicals, soluble in non-polar solvents, in a liquid phase consisting of a mixture of vinyl aromatic monomer (s)/polymerization solvent; feeding at least one radical initiator to the mixture, containing the functionalized elastomer in solution, and polymerizing the mixture thus obtained at a temperature higher than or equal to 1200C; recovering the vinyl aromatic (co) polymer obtained after devolatization; and recycling the solvent/monomer (s) mixture, coming from the devolatization, to step (a).
    Type: Application
    Filed: August 7, 2009
    Publication date: August 25, 2011
    Applicant: POLIMERI EUROPA S.P.A.
    Inventors: Gian Tommaso Viola, Leonardo Chiezzi
  • 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: 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: 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: 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
  • Patent number: 7482410
    Abstract: Processes for reducing the ultra high molecular weight polymeric material content of a high density polyethylene produced with a bis-triarylsilyl chromate catalyst system are provided. Processes for reducing the gel content of articles produced from high density polyethylene are also provided. The gel content of the articles is reduced by using the high density polyethylene with reduced ultra high molecular weight polymeric material content to produce the articles. The processes described reduce the content of ultra high molecular weight polymeric material in comparison to conventional high density polyethylene by introducing at least one catalyst deactivator into a recycle gas line containing a recycle gas stream associated with the fluidized bed reactor. The at least one catalyst deactivator has a boiling point lower than the maximum temperature within the recycle gas line.
    Type: Grant
    Filed: March 22, 2006
    Date of Patent: January 27, 2009
    Assignees: ExxonMobil Chemical Patents Inc., Saudi Basic Industries Corporation, Saudi Yanbu Petrochemical Company
    Inventor: D. Brett Fischbuch
  • Patent number: 7449439
    Abstract: A water-soluble thickener which is highly effective even in thickening strongly acidic aqueous solutions and has excellent stability in such solutions. It comprises a water-soluble copolymer having a weight-average molecular weight of 6,000,000 or higher obtainable by polymerizing a monomer mixture which comprises 2-acrylamido-2-methylpropanesulfonic acid and/or a salt thereof and acrylic acid and/or a salt thereof as essential components and optionally one or more other copolymerizable monomer components including the compound represented by the following Formula (1) and/or a salt thereof, wherein the 2-acrylamido-2-methylpropanesulfonic acid and/or a salt thereof represents 20 mol % or more of all the monomers. (wherein n is an integer of 1 to 12).
    Type: Grant
    Filed: October 6, 2003
    Date of Patent: November 11, 2008
    Assignee: Toagosei Co., Ltd.
    Inventors: Kenji Ito, Yoshio Mori
  • Publication number: 20080200623
    Abstract: The invention relates to a process for preparing water-absorbing polymer particles, comprising the inertization of monomer solutions, wherein the monomer solution, based on the dissolved monomer, comprises from 0.001 to 0.016% by weight of at least one polymerization inhibitor and at least 50% by volume of the inert gas used to inertize the monomer solution is transferred into the polymerization reactor together with the inertized monomer solution, and also to apparatus for performing the process.
    Type: Application
    Filed: August 31, 2006
    Publication date: August 21, 2008
    Applicant: BASF SE
    Inventors: Matthias Weismantel, Rudiger Funk, Dominicus van Esbroeck, Karl J. Possemiers, Ronny De Kaey, Leo Van Miert
  • Patent number: 7351781
    Abstract: A controlled free radical polymerization process, which includes the steps of: adding a monofunctional iniferter compound to an oxygen-free solvent; heating the solution to a temperature sufficient to allow the iniferter compound to form two carbon centered radical residues; adding a first monomer composition comprising one or more monomers to the solution containing the radical containing residues; polymerizing the first monomer composition to form a quasi-living polymer; and optionally polymerizing a second monomer composition comprising one or more monomers, which are different than the first monomer composition. The resulting non-random copolymer having the general formula: ?-[-Ap-Bs-]t-? where A and B are different compositions of ethylenically unsaturated monomers; p is an integer from 1 to 1,000; s is an integer from 0 to 1,000; t is an integer from 1 to 100; and ? is a residue from the iniferter.
    Type: Grant
    Filed: January 21, 2005
    Date of Patent: April 1, 2008
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Daniela White, James B. O'Dwyer
  • Patent number: 7265191
    Abstract: A multi-functional admixture for simultaneously providing specified characteristics to hydraulic cement compositions such as concrete contains one or more of specified reaction mixtures obtained by specified two processes as well as partially or completely neutralized substances obtained from such a reaction mixture through a specified third process. The specified two processes include initiating a radical copolymerization process of a radical polymerizable monomer mixture containing maleic anhydride and a monomer of a specified kind in a non-aqueous system in the presence of a non-aqueous radical initiator and stopping the radical copolymerization reaction in its midst while the inversion rate of polymerization is at a specified level by adding water to the reaction system to thereby obtain a reaction mixture. The specified third process is for partially or completely neutralizing the reaction mixture.
    Type: Grant
    Filed: September 10, 2004
    Date of Patent: September 4, 2007
    Assignee: Takemoto Yushi Kabushiki Kaisha
    Inventors: Mitsuo Kinoshita, Kazuhide Saitou, Shinji Tamaki, Masahiro Iida
  • Patent number: 7179875
    Abstract: In a process for preparing water-absorbent resins based on acrylic acid, crude acrylic acid is firstly isolated from the reaction gases from the catalytic gas-phase oxidation of propane, propylene and/or acrolein. This is treated with an aldehyde scavenger and pure acrylic acid is separated by distillation from the treated crude acrylic acid, and this pure acrylic acid can be subjected directly to a free-radical polymerization.
    Type: Grant
    Filed: August 2, 2002
    Date of Patent: February 20, 2007
    Assignee: BASF Aktiengesellschaft
    Inventors: Eberhard Fuchs, Hans Martan, Gerhard Nestler, Klaus Joachim Mueller-Engel
  • Patent number: 7166178
    Abstract: A high-quality protective film for a dry film resist is provided. A film of a polyethylene is used as the protective film, the polyethylene being prepared by pressurizing ethylene with use of an ultra-high pressure compressor and then polymerizing the ethylene at a reaction temperature of 190° to 300° C. and a reaction pressure of not lower than 167 MPa in the presence of a radical polymerization initiator, or by pressuring ethylene with use of an ultra-high pressure compressor and then polymerizing the ethylene at a reaction temperature of 190° to 300° C. in the presence of a radical polymerization initiator while allowing a radical polymerization inhibitor to be present in the reaction system.
    Type: Grant
    Filed: June 11, 2003
    Date of Patent: January 23, 2007
    Assignee: Japan Polyolefins Co., Ltd
    Inventors: Katsuaki Tsutsumi, Isao Hashimoto
  • Patent number: 7053157
    Abstract: The present invention relates to a method of producing multimodal polyolefins using at least one or more activated metallocene catalysts. The activated metallocene catalysts are used in combination in a single-process method. The method allows for the production of multimodal polyolefins of tunable composition, molecular weight and polydispersity.
    Type: Grant
    Filed: July 19, 2002
    Date of Patent: May 30, 2006
    Assignee: University of Maryland, College Park
    Inventors: Lawrence R Sita, Richard J Keaton, Kumudini C Jayaratne