Added Material Contains Oxygen Compound Patents (Class 526/84)
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Patent number: 11236182Abstract: 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: GrantFiled: March 25, 2019Date of Patent: February 1, 2022Assignee: Dow Global Technologies LLCInventors: Evelyn Auyeung, Sean W. Ewart, Daniela Ferrari, Thomas Davidian, Rony Vanspeybroeck
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Patent number: 11192969Abstract: 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: GrantFiled: December 14, 2016Date of Patent: December 7, 2021Assignee: DOW GLOBAL TECHNOLOGIES LLCInventors: Daniela Ferrari, Sean Ewart, Timothy Gambrel
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Patent number: 11142593Abstract: 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: GrantFiled: January 29, 2019Date of Patent: October 12, 2021Assignee: ExxonMobil Chemical Patents Inc.Inventors: Jay L. Reimers, Yifeng Hong, John R. Hagadorn
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Patent number: 11092395Abstract: 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: GrantFiled: October 17, 2018Date of Patent: August 17, 2021Assignee: ExxonMobil Chemical Patents Inc.Inventors: Brian R. Greenhalgh, Ronnie D. Bryant, Allison C. Buenemann, Benjamin C. Duff, Philip M. Duvall, Joseph A. Moebus
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Patent number: 9546246Abstract: 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: GrantFiled: July 24, 2014Date of Patent: January 17, 2017Assignee: S.P.C.M. SAInventors: René Hund, Gatien Faucher, Damien Fougerousse
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Patent number: 9458265Abstract: 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: GrantFiled: February 21, 2014Date of Patent: October 4, 2016Assignee: The Yokohama Rubber Co., Ltd.Inventors: Kazuya Uenishi, Misao Hiza
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Patent number: 9458274Abstract: 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: GrantFiled: February 21, 2014Date of Patent: October 4, 2016Assignee: The Yokohama Rubber Co., Ltd.Inventors: Kazuya Uenishi, Misao Hiza
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Patent number: 9139784Abstract: 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: GrantFiled: December 7, 2011Date of Patent: September 22, 2015Assignee: NOVA Chemicals (International) S.A.Inventors: Philippa Hocking, Fazle Sibtain, Eric Cheluget
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Patent number: 8987391Abstract: 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: GrantFiled: June 27, 2011Date of Patent: March 24, 2015Assignee: Akzo Nobel Chemicals International B.V.Inventors: René Gerritsen, Jacobus Schut, Johannes Willibrordus Antonius Overkamp, Johannes Jacobus Theodorus De Jong
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Patent number: 8981021Abstract: 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: GrantFiled: February 21, 2008Date of Patent: March 17, 2015Assignee: Univation Technologies, LLCInventors: Ronald S. Eisinger, Mark G. Goode
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Patent number: 8969484Abstract: Provided herein are methods for the preparation of mono- and multi-functional telechelic polyolefins via polymerization reaction with a terpene-based initiator.Type: GrantFiled: July 8, 2011Date of Patent: March 3, 2015Assignee: Chevron Oronite Company LLCInventors: Casey D. Stokes, Young A. Chang, Patrick J. McDougall
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Patent number: 8921479Abstract: 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: GrantFiled: November 16, 2012Date of Patent: December 30, 2014Assignee: CoatexInventors: Jean-Marc Suau, Denis Ruhlmann
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Patent number: 8895683Abstract: 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: GrantFiled: May 17, 2013Date of Patent: November 25, 2014Assignee: Evonik Degussa GmbHInventors: Franz-Felix Kuppinger, Axel Hengstermann, Guido Stochniol, Gunther Bub, Jurgen Mosler, Andreas Sabbagh
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Patent number: 8871870Abstract: 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: GrantFiled: March 15, 2013Date of Patent: October 28, 2014Assignee: Isola USA Corp.Inventors: Guroen He, Tarun Amla, Larry D. Olson, Peggy Conn
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Patent number: 8816025Abstract: 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: GrantFiled: May 20, 2013Date of Patent: August 26, 2014Assignee: LG Chem, Ltd.Inventors: Jong Rok Jeon, Se Woo Yang, Suk Ky Chang
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Patent number: 8669339Abstract: 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: GrantFiled: February 21, 2011Date of Patent: March 11, 2014Assignee: Ube Industries, Ltd.Inventors: Yasuyoshi Okabe, Yuuji Matsudaira, Chaiyaket Vichuta, Toshiyuki Sakaguchi
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Patent number: 8633279Abstract: 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: GrantFiled: December 12, 2012Date of Patent: January 21, 2014Assignee: Cheil Industries Inc.Inventors: Jae Keun Hong, Sung Hun Kim, Dong Keun Yoo, Young Kyu Chang
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Publication number: 20130345373Abstract: 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: ApplicationFiled: June 20, 2012Publication date: December 26, 2013Applicant: CHEVRON PHILLIPS CHEMICAL COMPANY LPInventors: Max P. McDaniel, Qing Yang, Kathy S. Collins, Tony R. Crain, Timothy O. Odi
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Patent number: 8598283Abstract: 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: GrantFiled: February 17, 2011Date of Patent: December 3, 2013Assignee: Univation Technologies, LLCInventors: Eric J. Markel, Robert O. Hagerty, Richard B. Pannell, Michael E. Sieloff, Jerome Holveck
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Patent number: 8524649Abstract: 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: GrantFiled: August 1, 2008Date of Patent: September 3, 2013Assignee: BASF SEInventors: Reinhold J Leyrer, Kati Schmidt
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Publication number: 20130211019Abstract: 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: ApplicationFiled: June 27, 2011Publication date: August 15, 2013Applicant: AKZO NOBEL CHEMICALS INTERNATIONAL B.V.Inventors: René Gerritsen, Jacobus Schut, Johannes Willibrordus Antonius Overkamp, Johannes Jacobus Theodorus De Jong
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Patent number: 8445617Abstract: 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: GrantFiled: November 5, 2012Date of Patent: May 21, 2013Assignee: Evonik Degussa GmbHInventors: Torsten Balduf, Gunther Bub, Jurgen Mosler, Andreas Sabbagh, Jurgen Kohn, Arndt Selbach
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Patent number: 8362155Abstract: [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: GrantFiled: June 13, 2005Date of Patent: January 29, 2013Assignee: Zeon CorporationInventor: Toshio Kase
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Publication number: 20130012662Abstract: Provided herein are methods for the preparation of mono- and multi-functional telechelic polyolefins via polymerization reaction with a terpene-based initiator.Type: ApplicationFiled: July 8, 2011Publication date: January 10, 2013Inventors: Casey D. Stokes, Young A. Chang, Patrick J. McDougall
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Publication number: 20120329962Abstract: 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: ApplicationFiled: February 17, 2011Publication date: December 27, 2012Applicant: UNIVATION TECHNOLOGIES, LLCInventors: Eric J. Markel, Robert O. Hagerty, Richard B. Pannell, Michael E. Sieloff, Jerome Holveck
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Patent number: 8309668Abstract: 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: GrantFiled: May 1, 2012Date of Patent: November 13, 2012Assignee: Evonik Stockhausen GmbHInventors: Torsten Balduf, Günther Bub, Jürgen Mosler, Andreas Sabbagh, Jürgen Kohn, Arndt Selbach
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Publication number: 20120277385Abstract: 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: ApplicationFiled: April 28, 2011Publication date: November 1, 2012Applicant: CHEVRON PHILLIPS CHEMICAL COMPANY LPInventors: QING YANG, Max P. McDaniel, Tony R. Crain, Kathy S. Collins
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Patent number: 8258249Abstract: 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: GrantFiled: February 17, 2011Date of Patent: September 4, 2012Assignee: Evonik Stockhausen GmbHInventors: 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
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Publication number: 20120184692Abstract: 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 mType: ApplicationFiled: May 28, 2010Publication date: July 19, 2012Inventors: 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
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Patent number: 8148470Abstract: 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: GrantFiled: November 19, 2010Date of Patent: April 3, 2012Assignee: ExxonMobil Chemical Patents Inc.Inventors: Matthew W. Holtcamp, Matthew S. Bedoya
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Publication number: 20110306738Abstract: Provided herein are methods for the preparation of telechelic polyolefins via polymerization reaction with a terpene initiator.Type: ApplicationFiled: June 10, 2010Publication date: December 15, 2011Inventors: Casey D. Stokes, Young A. Chang
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Patent number: 8013083Abstract: 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: GrantFiled: January 31, 2006Date of Patent: September 6, 2011Assignee: ChemTura CorporationInventors: Vilan Kosover, Jesus A. Fabian, Istvan Lippai, Brigitte Benage, Gerald J. Abruscato
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Publication number: 20110213072Abstract: 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: ApplicationFiled: February 28, 2011Publication date: September 1, 2011Applicant: COATEX S.A.S.Inventors: Jean-Marc Suau, Denis Ruhlmann
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Patent number: 8008368Abstract: 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: GrantFiled: December 21, 2006Date of Patent: August 30, 2011Assignees: Seiko Epson Corporation, The Inctec Inc.Inventors: Seiji Mochizuki, Makoto Otsuki, Masahiro Nakamura, Yukio Sugita, Mitsuyoshi Tamura, Fumie Yamazaki, Tamayo Okahira
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Publication number: 20110190459Abstract: 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: ApplicationFiled: March 29, 2007Publication date: August 4, 2011Applicant: Total Petrochemicals Research FeluyInventors: Olivier Miserque, Alain Brusselle, Vincent Warichet
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Patent number: 7981990Abstract: 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: GrantFiled: August 28, 2008Date of Patent: July 19, 2011Assignee: Bridgestone CorporationInventor: Yuan-Yong Yan
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Patent number: 7973111Abstract: 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: GrantFiled: May 28, 2004Date of Patent: July 5, 2011Assignee: Fina Technology, Inc.Inventors: Thanh Tri Nguyen, Tom Eugene Cushman, John Stevenson, Alan Bitzer
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Patent number: 7964677Abstract: 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: GrantFiled: November 10, 2006Date of Patent: June 21, 2011Assignee: Basell Polyolefine GmbHInventors: Shahram Mihan, Rainer Karer
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Patent number: 7879958Abstract: A method for quenching an active polymerization mixture, the method comprising introducing a polyhydroxy compound to an active polymerization mixture.Type: GrantFiled: August 7, 2007Date of Patent: February 1, 2011Assignee: Bridgestone CorporationInventors: Steven Luo, Timothy L. Tartamella, Mark W. Smale, Kevin M. McCauley, Zhong-Ren Chen
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Patent number: 7868103Abstract: 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: GrantFiled: May 17, 2007Date of Patent: January 11, 2011Assignee: Ube Industries, Ltd.Inventors: Koji Shiba, Michinori Suzuki, Masato Murakami, Yuji Matsudaira
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Patent number: 7834111Abstract: 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: GrantFiled: January 9, 2008Date of Patent: November 16, 2010Assignee: TSRC CorporationInventors: Chi-Chen Hsieh, Chih-Kuang Tsai, Tsung-Yuan Wang
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Publication number: 20100286348Abstract: 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: ApplicationFiled: December 28, 2008Publication date: November 11, 2010Applicant: Bridgestone CorporationInventors: Xiao-Dong Pan, Zengquan Qin, Yuan-Yong Yan, Dennis r. Brumbaugh, Jason T. Poulton
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Method for preparing polyolefins containing vinylidine end groups using polymeric nitrogen compounds
Patent number: 7816459Abstract: 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: GrantFiled: February 16, 2006Date of Patent: October 19, 2010Assignee: Chevron Oronite Company LLCInventor: Casey D. Stokes -
Patent number: 7794916Abstract: 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: GrantFiled: November 21, 2007Date of Patent: September 14, 2010Assignee: FUJIFILM CorporationInventor: Akinori Shibuya
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Patent number: 7728083Abstract: 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: GrantFiled: January 27, 2010Date of Patent: June 1, 2010Assignee: Chemtura CorporationInventors: Vilan Kosover, Jesus R. Fabian, Istvan Lippai, Brigitte Benage, Gerald J. Abruscato
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Patent number: 7696290Abstract: 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: GrantFiled: June 28, 2005Date of Patent: April 13, 2010Assignee: Crompton CorporationInventors: Vilan Kosover, Jesus A. Fabian, Istvan Lippai, Brigitte Benage, Gerald J. Abruscato
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Patent number: 7691952Abstract: 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: GrantFiled: June 29, 2005Date of Patent: April 6, 2010Assignee: Chemtura CorporationInventors: Vilan Kosover, Jesus A. Fabian, Istvan Lippai, Brigitte Benage, Gerald J. Abruscato
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Patent number: 7683144Abstract: 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: GrantFiled: April 24, 2003Date of Patent: March 23, 2010Assignee: Ciba Specialty Chemicals CorporationInventors: Rudolf Pfaendner, Alex Wegmann, Thomas Wannemacher, Dietrich Braun
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Patent number: 7648817Abstract: 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: GrantFiled: February 26, 2008Date of Patent: January 19, 2010Assignee: FUJIFILM CorporationInventors: Takayuki Kato, Akinori Shibuya
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Patent number: 7629422Abstract: 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: GrantFiled: December 20, 2005Date of Patent: December 8, 2009Assignee: Univation Technologies, LLCInventors: Mark G. Goode, Kevin J. Cann, F. David Hussein, Robert L. Santana, David C. Schutz, Agapios K. Agapiou