Of An Alkylene Oxide Patents (Class 564/475)
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Patent number: 10814314Abstract: The present invention relates to a catalyst for aminating a polyether polyol and preparation method thereof and a method of preparing a polyetheramine using the catalyst. The catalyst has active components and a carrier. The active components are Ni, Cu, and Pd. The method of preparing the catalyst comprises the following steps: using a metal solution or a metal melt impregnated carrier, obtaining a catalyst precursor; and drying and calcinating the obtained catalyst precursor, so as to obtain a catalyst. By introducing the active component Pd in the catalyst, the present invention clearly improves selectivity of an amination catalyst with respect to a preaminated product, and increases raw material conversion rate.Type: GrantFiled: November 13, 2015Date of Patent: October 27, 2020Assignee: Wanhua Chemical Group Co., Ltd.Inventors: Congying Zhang, Shujie Ren, Xin Li, Zhenguo Liu, Xiaolong Wang, Ningning Wang, Hao Chen, Yuan Li, Xueli Yu, Jinhong Song
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Patent number: 10752731Abstract: This invention relates to a process for the continuous production of polyether polyols, polyether polyols produced by the inventive continuous process and their use in polyurethane applications.Type: GrantFiled: April 1, 2015Date of Patent: August 25, 2020Assignees: BASF SE, BASF Schwarzheide GmbHInventors: Julia Grosse-Willerich, Kerstin Wiss, Karl-Heinz Wassmer, Peter Deglmann, Christian Buss, Vinit Chilekar
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Patent number: 10526275Abstract: Systems and method are provided for reducing the water content in ethanolamine product streams from approximately 0.15%-0.19% by weight of water to approximately 0.02 to approximately 0.04 by weight of water. The reduced water content can be achieved by increasing the processing conditions at the monoethanolamine column by approximately 5% to approximately 20%, more preferably to approximately 10%, and by adding a dummy stream to the monoethanolamine column, which can be recycled to the reactor. The increased processing conditions and dummy stream at the monoethanolamine column can result in the following to achieve said water content: (i) the bottom stream flow rate increase by up to approximately 18.9%; the reboiler duty can be increased by up to 47.9%; and (iii) the condenser duty can be increased by up to approximately 52.5%.Type: GrantFiled: April 6, 2015Date of Patent: January 7, 2020Assignee: SABIC GLOBAL TECHNOLOGIES B.V.Inventor: Naeem Al-Hazmi
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Patent number: 9035099Abstract: An improved process for making ethoxylated amine compounds such as ethanolamines. The improvement comprises the addition of an acid to the amine compound prior to the addition of ethylene oxide to a reactor wherein the ethoxylated amine compound is prepared. The improvement reduces the concentration of undesirable glycol ether and/or vinyl ether ethoxylate byproducts which may contribute to undesirable properties, such as color and foaming, of the ethoxylated amine compounds.Type: GrantFiled: November 28, 2012Date of Patent: May 19, 2015Assignee: Dow Global Technologies LLCInventors: Stephen W. King, Daniel A. Aguilar, Christophe R. Laroche
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Publication number: 20150057467Abstract: Process to prepare ethylene amines by the amination of ethylene oxide, ethylene glycol or ethanolamine in the presence of a catalyst, including a step wherein methylamine and ethylamine are removed from the reaction effluents, wherein the methylamine and the ethylamine are adsorbed onto or absorbed by absorbents and adsorbents (absorption/adsorption) and wherein the absorption/adsorption takes place in the liquid phase or in the gas phase.Type: ApplicationFiled: October 30, 2014Publication date: February 26, 2015Applicant: AKZO NOBEL N.V.Inventors: Martin Stefan HANSON, Leif Kenny Christian GUSTAFSON, Johan LIF, Boris KUZMANOVIC, Ulf SCHRÖDER
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Patent number: 8901355Abstract: Provided are new dendrimers and processes for making them. The dendrimers are derived from a nitroalkyloxirane compound of formula (III): wherein R1, R2, and R3 are as described herein.Type: GrantFiled: May 17, 2012Date of Patent: December 2, 2014Assignees: Dow Global Technologies LLC, ANGUS Chemical CompanyInventors: Ian A. Tomlinson, Asghar A. Peera
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Patent number: 8835690Abstract: The present invention relates to a process for the manufacture of APD and N-alkyl-APD wherein 1-CPD is reacted with aqueous ammonium or aqueous alkyl-amine under alkaline conditions and where the process is conducted in a continuous manner in a reactor comprising a tubular reactor wherein at least two reaction zones are established.Type: GrantFiled: February 9, 2012Date of Patent: September 16, 2014Assignee: Borregaard ASInventor: Freddy Tjosas
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Publication number: 20140256988Abstract: Embodiments of the present disclosure include polyetheramines, methods of making polyetheramine, methods of using polyetheramine, and the like.Type: ApplicationFiled: May 20, 2014Publication date: September 11, 2014Applicant: INVISTA North America S.a.r.l.Inventor: Ronald L. AMEY
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Patent number: 8765008Abstract: Provided is a hydroxyalkylated polyalkylene polyamine composition, and a method for preparing the composition at low cost. Further disclosed is a method for producing a polyurethane resin by using the hydroxyalkylated polyalkylene polyamine composition containing at least two hydroxyalkylated polyalkylene polyamines as defined herein.Type: GrantFiled: March 16, 2012Date of Patent: July 1, 2014Assignee: Tosoh CorporationInventors: Takahiro Masuda, Yutaka Tamano
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Publication number: 20140179953Abstract: The present invention relates to a process to prepare ethylene amines by the amination of ethylene oxide, ethylene glycol or ethanolamine in the presence of a catalyst, comprising a step wherein methylamine and/or ethylamine are removed from the reaction effluents.Type: ApplicationFiled: September 27, 2013Publication date: June 26, 2014Applicant: Akzo Nobel N.V.Inventors: Martin Stefan HANSON, Leif Kenny Christian GUSTAFSON, Johan LIF, Boris KUZMANOVIC, Ulf SCHRÖDER
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Publication number: 20140179952Abstract: The present invention relates to a catalyst for reductive amination-reaction, and uses thereof. The catalyst according to the present invention can show high amine conversion rate because it can maintain the catalytic activity even in the presence of moisture especially while maintaining the balance of dehydrogenation and hydrogenation reaction basically. Accordingly, the catalyst can be usefully used for preparing a polyetheramine compound through reductive amination-reaction not only in a continuous preparation process but also in a batch preparation process, irrespective of the existence of moisture.Type: ApplicationFiled: May 9, 2013Publication date: June 26, 2014Applicant: Lotte Chemical CorporationInventors: Kyung-Jun Kim, Chun-Sik Byun, Jin-Heung Kim, Hui-Chan Kim, Young-Jong Seo
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Patent number: 8748646Abstract: The present application relates to molecules comprising one or more beta-hydroxyamine moieties, for example, aminosilicones and compositions such as consumer products comprising such molecules, as well as processes for making and using such molecules and such compositions. The aforementioned process is safer, more efficient and thus more economical. Thus, the aforementioned moleculers may be more widely used.Type: GrantFiled: June 20, 2012Date of Patent: June 10, 2014Assignee: The Procter & Gamble CompanyInventors: Bernard William Kluesener, Robert Edward Shumate, Rajan Keshav Panandiker, Kenneth Edward Yelm
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Patent number: 8563778Abstract: The present invention relates to a process to prepare ethylene amines by the amination of ethylene oxide, ethylene glycol or ethanolamine in the presence of a catalyst, comprising a step wherein methylamine and/or ethylamine are removed from the reaction effluents.Type: GrantFiled: December 29, 2008Date of Patent: October 22, 2013Assignee: Akzo Nobel N.V.Inventors: Martin Stefan Hanson, Leif Kenny Christian Gustafson, Johan Lif, Boris Kuzmanovic, Ulf Schröder
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Patent number: 8546616Abstract: The object of the invention are compounds of the formula (2) wherein R1 is H, methyl or ethyl, R2 is C1- to C4 alkyl, A is a C2- to C4 alkylene group, m is number from 10 to 400, n is 1, 2, 3, 4, or 5, a method for their production and their use in the production of polyurethane prepolymers.Type: GrantFiled: June 13, 2007Date of Patent: October 1, 2013Assignee: Clariant Finance (BVI) LimitedInventors: Klaus Poellmann, Juergen Muenter
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Patent number: 8415502Abstract: A reaction column (12) to which a raw material mixture (11) containing a mono-lower-alkylamine (AA: raw material I) and an alkylene oxide (AO: raw material II) is supplied, an unreacted raw material distillation column (14) that separates an unreacted raw material (15) from a reaction product (13a) (containing the unreacted raw material (15), a target reaction product (monomer) (17), and a by-product (dimer) (18)), and a flash drum (16) to which a reaction product (13b) (containing the target reaction product (monomer) (17) and the by-product (dimer) (18)) is supplied, the flash drum (16) separating a mono-lower-alkyl monoalkanolamine (monomer, the target reaction product 17) in a gas state, are provided.Type: GrantFiled: October 24, 2008Date of Patent: April 9, 2013Assignees: Mitsubishi Heavy Industries, Ltd., The Kansai Electric Power Co., Inc., Nippon Nyukazai Co., Ltd.Inventors: Tatsuya Tsujiuchi, Shinya Tachibana, Tsuyoshi Oishi, Tomio Mimura, Yasuyuki Yagi, Hidehisa Mita, Ryosuke Araki, Kenji Saito
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Patent number: 8404899Abstract: An object of the present invention is to provide an aliphatic amine alkylene oxide adduct which has a satisfactory color when used as a detergent, has a sufficiently sharp molecular weight distribution, and is highly pure and less odorous. The present invention is an aliphatic amine alkylene oxide adduct formed by adding m pieces of (A1O) and n pieces of (A2O) [wherein A1O and A2O each independently represent an oxyethylene group and/or an oxypropylene group] to an ethylene oxide 2-mole adduct of a primary amine having a saturated or unsaturated hydrocarbon group having 4 to 24 carbon atoms, the aliphatic amine alkylene oxide adduct having a color which, as expressed by the Gardner color scale, satisfies the following expression (1) or (2): In the case where 1?m+n?15 Gardner color scale?0.5×(m+n+2)?1.5??(1) In the case where 15<m+n?100 Gardner color scale?6??(2).Type: GrantFiled: September 18, 2008Date of Patent: March 26, 2013Assignee: Sanyo Chemical Industries, Ltd.Inventor: Seiji Yamashita
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Publication number: 20120184705Abstract: The present invention provides a simple method with no processing for producing polyols based on amino group-containing starter compounds. Unless explicitly specified, polyols are understood to be polyether polyols, polyether ester polyols and also polyether ester amide polyols. The invention also provides the polyols obtainable by the method according to the invention and the use of the polyols according to the invention to produce polyurethane materials.Type: ApplicationFiled: September 27, 2010Publication date: July 19, 2012Applicant: Bayer MaterialScience AGInventors: Klaus Lorenz, Manfred Schmidt
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Publication number: 20110309001Abstract: The invention relates to a class of novel surfactants that have utility in the recovery and/or extraction of oil.Type: ApplicationFiled: December 2, 2010Publication date: December 22, 2011Inventors: David Soane, Rosa Casado Portilla, John H. Dise, Robert P. Mahoney
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Patent number: 8049039Abstract: The present invention generally relates to a process for preparing alkoxylated alkylamines and/or alkyl ether amines. The process consists of two stages and utilizes a catalyst with a multiple-charge counterion. The alkoxylated alkylamines and alkoxylated alkyl ether amines prepared by the process possess the peaked ethoxylation distribution and contain less hazardous by-product.Type: GrantFiled: June 21, 2007Date of Patent: November 1, 2011Assignee: Akzo Nobel N.V.Inventors: Giao Vinh Nguyen, James Alfred Ragains, Kha Carl Dang Nguyen, Charles Woodville Davis
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Patent number: 7977513Abstract: An amine producing apparatus includes a reactor that reacts a mono-lower-alkylamine and an alkylene oxide, an unreacted-raw-material-recovery distillation column that separates unreacted raw materials by distillation from a product including unreacted raw materials obtained in the reactor, a non-aqueous distillation column that removes water and a light component by a distillation method from a reactive product from which unreacted raw material have been separated, and a purification and distillation column that separates by distillation a desired reactive product (mono-lower-alkylmonoalkanolamine) and residue (mono-lower-alkyldialkanolamine which is a dimer) from a reactive product from which the water and the light component have been removed.Type: GrantFiled: August 6, 2007Date of Patent: July 12, 2011Assignees: Mitsubishi Heavy Industries, Ltd., Nippon Nyukazai Co., Ltd.Inventors: Shinya Tachibana, Ryuji Yoshiyama, Tsuyoshi Oishi, Mikiya Sakurai, Kazuo Ishida, Tatsuya Tsujiuchi, Hidehisa Mita, Ryosuke Araki, Kenji Saito
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Publication number: 20110015439Abstract: The present invention relates to a process to prepare ethylene amines by the amination of ethylene oxide, ethylene glycol or ethanolamine in the presence of a catalyst, comprising a step wherein methylamine and/or ethylamine are removed from the reaction effluents.Type: ApplicationFiled: December 29, 2008Publication date: January 20, 2011Applicant: AKZO NOBLE N.V.Inventors: Martin Stefan Hanson, Leif Kenny Christian Gustafson, Johan Lif, Boris Kuzmanovic, Ulf Schröder
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Patent number: 7759521Abstract: The present invention relates to a process for preparing autocatalytic polyether alcohols by reacting H-functional starter substances containing at least one amino group which is catalytically active in the urethane reaction, in particular a tertiary amino group, and at least one group which is reactive toward alkylene oxides, in particular a primary and/or secondary amino group and/or hydroxyl group, with alkylene oxides, which comprises a) dissolving the starter substance in a solvent, b) reacting the solution with alkylene oxides.Type: GrantFiled: July 15, 2004Date of Patent: July 20, 2010Assignee: BASF AktiengesellschaftInventors: Elke Bleuel, Monika Wetterling, Marita Schuster, Markus Templin, Dieter Rodewald
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Patent number: 7713903Abstract: A carrier that may be used in the manufacture of an olefin epoxidation catalyst is provided that is prepared from a process involving depositing boron on the carrier and subsequently calcining the carrier. Also provided is an olefin epoxidation catalyst comprising a silver component deposited on such a calcined carrier. Also provided is a process for the epoxidation of an olefin employing such a catalyst and a process for producing a 1,2-diol, a 1,2-diol ether, or an alkanolamine employing the olefin oxide.Type: GrantFiled: August 25, 2008Date of Patent: May 11, 2010Assignee: Shell Oil CompanyInventors: John Robert Lockemeyer, Jian Lu, Nga Thi-Huyen Vi
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Publication number: 20100069672Abstract: In another exemplary embodiment, an amine functional curing agent has an Amine Hydrogen Functionality (AHF) of at least 7 and an Amine-Hydrogen Equivalent Weight (AHEW) of at least about 50.Type: ApplicationFiled: March 14, 2008Publication date: March 18, 2010Applicant: Huntsman Petrochemical LLCInventors: Bruce L. Burton, Terry L. Renken
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Patent number: 7678955Abstract: A composite material comprises: (a) a porous crystalline inorganic oxide material comprising a first framework structure defining a first set of uniformly distributed pores having an average cross-sectional dimension of from 0.3 to less than 2 nanometers and comprising a second framework structure defining a second set of uniformly distributed pores having an average cross-sectional dimension of from 2 to 200 nanometers and (b) a co-catalyst within the second set of pores of the porous crystalline inorganic oxide material (a).Type: GrantFiled: October 13, 2005Date of Patent: March 16, 2010Assignee: ExxonMobil Chemical Patents IncInventors: Luc R. M. Martens, Sebastien P. B. Kremer
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Patent number: 7678755Abstract: A modified polyol compound having alkoxylation and having at least one anionic capping unit, uses of the modified polyol compound having alkoxylation and having at least one anionic capping unit and cleaning compositions comprising the same.Type: GrantFiled: April 15, 2009Date of Patent: March 16, 2010Assignee: The Procter & Gamble CompanyInventors: Jeffrey John Scheibel, Julie Ann Menkhaus, Xinbei Song, Eva Schneiderman
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Publication number: 20090264678Abstract: A carrier that may be used in the manufacture of an olefin epoxidation catalyst is provided that is prepared from a process involving depositing boron on the carrier and subsequently calcining the carrier. Also provided is an olefin epoxidation catalyst comprising a silver component deposited on such a calcined carrier. Also provided is a process for the epoxidation of an olefin employing such a catalyst and a process for producing a 1,2-diol, a 1,2-diol ether, or an alkanolamine employing the olefin oxide.Type: ApplicationFiled: August 25, 2008Publication date: October 22, 2009Inventors: John Robert LOCKEMEYER, Jian Lu, Nga Thi-Huyen, VI
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Patent number: 7550631Abstract: Uses of a modified polyol compound having alkoxylation and having at least one anionic capping unit.Type: GrantFiled: September 24, 2007Date of Patent: June 23, 2009Assignee: The Procter & Gamble CompanyInventors: Jeffrey John Scheibel, Julie Ann Menkhaus, Xinbei Song, Eva Schneiderman
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Patent number: 7538080Abstract: A modified polyol compound having alkoxylation and having at least one anionic capping unit, uses of the modified polyol compound having alkoxylation and having at least one anionic capping unit and cleaning compositions comprising the same.Type: GrantFiled: September 24, 2007Date of Patent: May 26, 2009Assignee: The Procter & Gamble CompanyInventors: Jeffrey John Scheibel, Julie Ann Menkhaus, Xinbei Song, Eva Schneiderman
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Patent number: 7465835Abstract: The present invention relates to new crystalline molecular sieve SSZ-75 having STI topology prepared using a tetramethylene-1,4-bis-(N-methylpyrrolidinium) dication as a structure-directing agent, and its use in catalysts for making amines.Type: GrantFiled: June 1, 2007Date of Patent: December 16, 2008Assignee: Chevron U.S.A. Inc.Inventors: Stacey Zones, Allen Burton
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Publication number: 20080261814Abstract: The present invention generally relates to a process for preparing the alkoxylated alkylamines and/or alkyl ether amines. The process consists of three stages, and utilizes an alkali catalyst. The alkoxylated alkyl amines and alkoxylated alkyl ether amines prepared by the process possess the peaked distribution and contain less hazardous by-product.Type: ApplicationFiled: September 23, 2005Publication date: October 23, 2008Applicants: MONSANTO TECHNOLOGY LLC, AKZO NOBEL N.V.Inventors: Shawn Zhu, Giao Nguyen, Kha Nguyen, Alberto Slikta, David Eaton, David Becher, Henry Agbaje, Michael Seitz
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Patent number: 7439219Abstract: A modified polyol having alkoxylation and amine capping units, uses of the modified polyol having alkoxylation and amine capping units, and leaning compositions having the modified polyol having alkoxylation and amine capping units.Type: GrantFiled: December 17, 2004Date of Patent: October 21, 2008Assignee: The Procter & Gamble CompanyInventors: Jeffrey John Scheibel, Julie Ann Menkhaus
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Patent number: 7323600Abstract: There is provided a regeneration process for converting oxazolidones such as hydroxypropyloxazolidone (HPOZD) to alkanolamines such as di-isopropanolamine (DIPA) and CO2. An amine stream containing HPOZD joins a stream that includes a caustic solution. The combined stream is passed to a tank where the caustic reacts with HPOZD to convert it to DIPA and CO2. The conversion of HPOZD to DIPA and CO2 requires a ratio of at least 2 moles of hydroxide for each mole of HPOZD in the solution. The conversion reaction is carried out in a reaction vessel at a temperature above 60° C. The reaction mixture is held in a feed tank for approximately 2 hours while being constantly mixed. After the reaction is completed, the mixture is allowed to settle which results in the virtually complete separation of the amine phase (containing DIPA, and water) from the caustic phase.Type: GrantFiled: August 8, 2006Date of Patent: January 29, 2008Assignee: MPR Services, Inc.Inventors: Michael L. H. Turoff, Arthur Lee Cummings, Scott William Waite, Robert Lee Horan
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Patent number: 7279602Abstract: Process for separating triethanolamine continuously by distillation from a mixture of monoethanolamine, diethanolamine and triethanolamine together with ethanolamine ethers and water obtained by reaction of ammonia with ethylene oxide in the liquid phase under superatmospheric pressure and at elevated temperature, in which the mixture is distilled in two stages. The low-boiling fraction and the high-boiling fraction are taken off and discharged in the first stage and the intermediate-boiling fraction comprising >99.4% by weight of triethanolamine and <0.2% by weight of diethanolamine is distilled in the second stage. The distillation of the mixture is preferably carried out in a first column and a second column connected to this or in a dividing wall column.Type: GrantFiled: October 2, 2004Date of Patent: October 9, 2007Assignee: BASF AktiengesellschaftInventors: Wolfgang Reif, Hans Hammer, Guenther Ruider, Anton Meier, Philip Buskens, Matthias Frauenkron
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Patent number: 7189879Abstract: A new process for the production of 1-hydroxymethyl-1,3,5-triazapentane, trihydrochloride is described.Type: GrantFiled: May 24, 2005Date of Patent: March 13, 2007Assignee: Schering AGInventors: Johannes Platzek, Jan Huebner, Orlin Petrov
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Patent number: 7164044Abstract: A process for producing a high purity trialkanolamine excelling in hue and having an APHA of not more than 40, characterizing by including producing a mixed alkanolamine by the reaction of an alkylene oxide with ammonia; removing low-boiling substances from the mixed alkanolamine; removing high-boiling substances by subjecting the product deprived of the low-boiling substance to vacuum distillation, and redistilling the distillate obtained by the vacuum distillation.Type: GrantFiled: February 2, 2004Date of Patent: January 16, 2007Assignee: Nippon Shokubai Co., Ltd.Inventors: Fumiaki Morishita, Atsushi Tojo, Takahiro Takinami, Yutaka Sugiyama
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Patent number: 7122684Abstract: The invention provides a multi-step process for preparing 1,2-diamino compounds of formula wherein R1, R1?, R2, R2?, R3 and R4 have the meaning given in the specification and pharmaceutically acceptable addition salts thereof, from 1,2-epoxides of formula wherein R1, R1?, R2 and R2? have the meaning given in the specification.Type: GrantFiled: March 13, 2003Date of Patent: October 17, 2006Assignee: Roche Colorado CorporationInventors: Jack D. Brown, Peter J. Harrington, Robert C. Hughes
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Patent number: 7119231Abstract: At least one alkanolamine is prepared by reacting ammonia with alkylene oxide in a reaction space in the presence of a catalyst to give monoalkanolamine or dialkanolamine or trialkanolamine or a mixture of two or three of these compounds, the distribution of the various alkanolamines within the product spectrum being controlled by means of the temperature in the reaction space, by a process in which the temperature is established by regulating the temperature profile in the reaction space.Type: GrantFiled: June 7, 2001Date of Patent: October 10, 2006Assignee: BASF AktiengesellschaftInventors: Matthias Frauenkron, Ulrich Müller, Wolfgang Harder, Jörg Unger, Johann-Peter Melder, Anton Meier, Walter Himmel
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Patent number: 6909018Abstract: Polyalkeneamines of the formula (I) where R1, R2, R3, R4, R5 and R6 may have different meanings, are prepared by a process in which a polyalkene epoxide is reacted with an amine and the amino alcohol is dehydrated and reduced to give the compound of the formula (I).Type: GrantFiled: September 21, 2000Date of Patent: June 21, 2005Assignee: BASF AktiengesellschaftInventors: Johann-Peter Melder, Gerhard Blum, Wolfgang Günther, Dietmar Posselt, Knut Oppenländer
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Patent number: 6846959Abstract: A process for producing an alkanolamine includes supplying a reactive distillation apparatus having an inner contacting surface which simultaneously facilitates a reaction process and a distillation process, feeding a first reactant including an amine represented by R?3-XNHX, wherein R? is a hydrocarbon group, and X is 1, 2, or 3, feeding a second reactant including an akylene oxide represented by R?O, wherein R? is a C2-C10-alkylene, feeding a catalyst in an amount from 0% to about 15% by weight of a mixture of the first reactant, the second reactant and the catalyst; recycling an overhead output from an overhead portion including an unreacted portion of the amine and the catalyst to achieve a substantially total reflux of the amine and the catalyst, and collecting a product output including an alkanolamine, the alkanolamine being a member selected from the group consisting of a monoalkanolamine, a dialkanolamine, and a trialkanolamine.Type: GrantFiled: October 7, 2002Date of Patent: January 25, 2005Assignee: Air Products and Chemicals, Inc.Inventors: Diwakar Garg, Shashank Navin Shah, Matthew Joseph Okasinski, Ava S. Drayton-Elder
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Patent number: 6746623Abstract: The present invention pertains to a method for controlling the foaming of a waterborne composition or in an industrial process utilizing a waterborne composition by the incorporation of a foam controlling agent in an amount effective for controlling foam. The method comprises utilizing as the foam controlling agent an alkyl glycidyl ether-capped diamine compound of the formula: L is a linker group comprising a linear, branched, or cyclic alkyl group having from 2 to about 6 carbon atoms or an alkyl ether group having from about 4 to about 8 carbon atoms. R is independently selected from hydrogen or —CH2CHOHCH2OR′. R′ is an alkyl group having from about 4 to about 22 carbon atoms. The compound generates an initial foam height at least 30% less than a 0.1 wt % aqueous solution of dioctyl sodium sulfosuccinate (DOSS), when added at 0.1 wt % to the aqueous DOSS solution. The present invention also pertains to an aqueous composition comprising the foam controlling agent.Type: GrantFiled: February 1, 2002Date of Patent: June 8, 2004Assignee: Air Products and Chemicals, Inc.Inventors: Caroline Sassano Slone, Kevin Rodney Lassila
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Patent number: 6727389Abstract: A method for processing at least one cyclic organo-oxide using a closed loop scrubber/holding tank system that contains at least one amine, and circulating the amine through the closed loop while admitting the cyclic organo-oxide to the closed loop.Type: GrantFiled: April 16, 2003Date of Patent: April 27, 2004Assignee: Equistar Chemicals, LPInventor: Krishnan Viswanathan
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Patent number: 6723880Abstract: A process for producing secondary amines of the formula R1R2N—A—NH—A—NR1R2, where R1 and R2 are linear or branched C1-20-alkyl radicals, optionally substituted with from 1 to 5 phenyl groups; or cyclohexyl radicals; or together with the nitrogen atom to which they are bound, form a 3 to 7 membered saturated ring, optionally containing further hetero atoms selected from the group consisting of N, O and S, and optionally substituted with from 1 to 5 C1-2-alkyl groups. The group A is a linear or branched C2-20-alkylene group, optionally containing from 1 to 5 phenylene groups; or a radical of the formula —CH(R3)—[CH2]k—X—[CH(R3)—[CH2]k—X]m—CH(R3)—[CH2]k—, where R3 is H or CH3, X is O, S or NR4, R4 is H or a linear or branched C1-4-alkyl group, k is 1 or 2, and m is an integer from 0 to 4; or a group of the formula where n, o, p, and q are, independently, integers from 1 to 4.Type: GrantFiled: June 19, 2002Date of Patent: April 20, 2004Assignee: BASF AktiengesellschaftInventors: Peter Neumann, Johann-Peter Melder, Christoph Benisch, Arthur Höhn, Joachim Pfeffinger
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Patent number: 6632968Abstract: A process for preparing amines comprises reacting an epoxide of the formula (I) where R1, R2, R3 and R4 are each, independently of one another, hydrogen or a linear or branched, saturated or unsaturated C2-C200-hydrocarbon radical, with ammonia and hydrogen in the presence of a catalyst, where the molar ratio of ammonia:epoxide is from 5:1 to 500:1 and the hydrogen pressure is from 10 bar to 500 bar.Type: GrantFiled: August 2, 2002Date of Patent: October 14, 2003Assignee: BASF AktiengesellschaftInventors: Christian Ott, Marco Bergemann
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Patent number: 6566556Abstract: A method for producing an alkanolamine from liquid ammonia in the presence of a solid catalyst efficiently with both the cost of equipment and the expense of utility repressed is provided. After not less than 60% of the ammonia has been recovered as liquid ammonia from the product solution, the remaining ammonia is recovered as aqueous ammonia solution through the steps of stripping and absorption in water. Separately, a dialkanolamine can be selectively and efficiently produced by circulating part of the product solution to the reactor.Type: GrantFiled: November 15, 2001Date of Patent: May 20, 2003Assignee: Nippon Shokubai Co., Ltd.Inventors: Hideaki Tsuneki, Koji Takeda, Fumiaki Morishita
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Patent number: 6563003Abstract: The present invention includes a number of novel intermediates such as the (S)-secondary alcohol of formula (VIIIA) X2—CH2—C*H(OH)—CH2—NH—CO—RN (VIIIA) and processes for production of pharmacologically useful oxazolidinones.Type: GrantFiled: October 16, 2002Date of Patent: May 13, 2003Assignee: Pharmacia & Upjohn CompanyInventor: Bruce Allen Pearlman
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Patent number: 6559342Abstract: In producing alkanolamines by use of a microporous material as a catalyst, the difficulty in industrially performing the production because of the short lifetime of the catalyst is resolved. A process of regenerating the catalyst by removing an organic substance deposited on the catalyst by means of decomposing and/or extracting the substance is introduced, and thereby steady production is carried out substantially over the long term by switching the reaction and the regenerating processes.Type: GrantFiled: November 21, 2000Date of Patent: May 6, 2003Assignee: Nippon Shokubai Co., Ltd.Inventors: Hideaki Tsuneki, Masaru Kirishiki, Yoshitaka Arita, Yukihide Hashimoto, Tomoharu Oku, Hisakazu Shindou, Yoshiaki Urano, Fumiaki Morishita
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Publication number: 20030065224Abstract: A continuous process for the preparation of monoethanolamine, diethanolamine and triethanolamine by reacting ammonia and ethylene oxide in liquid phase in the presence of water as catalyst in a pressure column is proposed, where, as a result of the heat of the reaction, some of the ammonia evaporates, condenses at the head of the column and is again charged to the column, the reaction mixture at the bottom end of the pressure column is drawn off and then separated, the pressure column is constructed as a reactive distillation column (I) with evaporator at the bottom (S) and where, by means of inputting energy via the evaporator at the bottom (S), the weight ratio of monoethanolamine to diethanolamine to triethanolamine is controlled and, via the ratio of ammonia to ethylene oxide in the feed to the reactive distillation column (I), the ammonia proportion in the bottom product from the reactive distillation column (I) is controlled.Type: ApplicationFiled: August 27, 2002Publication date: April 3, 2003Inventors: Werner Peschel, Axel Hildebrandt, Bernd Bebetaling
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Publication number: 20030028053Abstract: A process for preparing amines comprises reacting an epoxide of the formula (I) 1Type: ApplicationFiled: August 2, 2002Publication date: February 6, 2003Inventors: Christian Ott, Marco Bergemann
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Publication number: 20020123653Abstract: A method for producing an alkanolamine from liquid ammonia in the presence of a solid catalyst efficiently with both the cost of equipment and the expense of utility repressed is provided. After not less than 60% of the ammonia has been recovered as liquid ammonia from the product solution, the remaining ammonia is recovered as aqueous ammonia solution through the steps of stripping and absorption in water. Separately, a dialkanolamine can be selectively and efficiently produced by circulating part of the product solution to the reactor.Type: ApplicationFiled: November 15, 2001Publication date: September 5, 2002Inventors: Hideaki Tsuneki, Koji Takeda, Fumiaki Morishita