Of An Alkylene Oxide Patents (Class 564/475)
  • Patent number: 10526275
    Abstract: 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: Grant
    Filed: April 6, 2015
    Date of Patent: January 7, 2020
    Assignee: SABIC GLOBAL TECHNOLOGIES B.V.
    Inventor: Naeem Al-Hazmi
  • Patent number: 9035099
    Abstract: 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: Grant
    Filed: November 28, 2012
    Date of Patent: May 19, 2015
    Assignee: Dow Global Technologies LLC
    Inventors: Stephen W. King, Daniel A. Aguilar, Christophe R. Laroche
  • Publication number: 20150057467
    Abstract: 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: Application
    Filed: October 30, 2014
    Publication date: February 26, 2015
    Applicant: AKZO NOBEL N.V.
    Inventors: Martin Stefan HANSON, Leif Kenny Christian GUSTAFSON, Johan LIF, Boris KUZMANOVIC, Ulf SCHRÖDER
  • Patent number: 8901355
    Abstract: 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: Grant
    Filed: May 17, 2012
    Date of Patent: December 2, 2014
    Assignees: Dow Global Technologies LLC, ANGUS Chemical Company
    Inventors: Ian A. Tomlinson, Asghar A. Peera
  • Patent number: 8835690
    Abstract: 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: Grant
    Filed: February 9, 2012
    Date of Patent: September 16, 2014
    Assignee: Borregaard AS
    Inventor: Freddy Tjosas
  • Publication number: 20140256988
    Abstract: Embodiments of the present disclosure include polyetheramines, methods of making polyetheramine, methods of using polyetheramine, and the like.
    Type: Application
    Filed: May 20, 2014
    Publication date: September 11, 2014
    Applicant: INVISTA North America S.a.r.l.
    Inventor: Ronald L. AMEY
  • Patent number: 8765008
    Abstract: 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: Grant
    Filed: March 16, 2012
    Date of Patent: July 1, 2014
    Assignee: Tosoh Corporation
    Inventors: Takahiro Masuda, Yutaka Tamano
  • Publication number: 20140179952
    Abstract: 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: Application
    Filed: May 9, 2013
    Publication date: June 26, 2014
    Applicant: Lotte Chemical Corporation
    Inventors: Kyung-Jun Kim, Chun-Sik Byun, Jin-Heung Kim, Hui-Chan Kim, Young-Jong Seo
  • Publication number: 20140179953
    Abstract: 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: Application
    Filed: September 27, 2013
    Publication date: June 26, 2014
    Applicant: Akzo Nobel N.V.
    Inventors: Martin Stefan HANSON, Leif Kenny Christian GUSTAFSON, Johan LIF, Boris KUZMANOVIC, Ulf SCHRÖDER
  • Patent number: 8748646
    Abstract: 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: Grant
    Filed: June 20, 2012
    Date of Patent: June 10, 2014
    Assignee: The Procter & Gamble Company
    Inventors: Bernard William Kluesener, Robert Edward Shumate, Rajan Keshav Panandiker, Kenneth Edward Yelm
  • Patent number: 8563778
    Abstract: 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: Grant
    Filed: December 29, 2008
    Date of Patent: October 22, 2013
    Assignee: Akzo Nobel N.V.
    Inventors: Martin Stefan Hanson, Leif Kenny Christian Gustafson, Johan Lif, Boris Kuzmanovic, Ulf Schröder
  • Patent number: 8546616
    Abstract: 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: Grant
    Filed: June 13, 2007
    Date of Patent: October 1, 2013
    Assignee: Clariant Finance (BVI) Limited
    Inventors: Klaus Poellmann, Juergen Muenter
  • Patent number: 8415502
    Abstract: 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: Grant
    Filed: October 24, 2008
    Date of Patent: April 9, 2013
    Assignees: 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
  • Patent number: 8404899
    Abstract: 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: Grant
    Filed: September 18, 2008
    Date of Patent: March 26, 2013
    Assignee: Sanyo Chemical Industries, Ltd.
    Inventor: Seiji Yamashita
  • Publication number: 20120184705
    Abstract: 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: Application
    Filed: September 27, 2010
    Publication date: July 19, 2012
    Applicant: Bayer MaterialScience AG
    Inventors: Klaus Lorenz, Manfred Schmidt
  • Publication number: 20110309001
    Abstract: The invention relates to a class of novel surfactants that have utility in the recovery and/or extraction of oil.
    Type: Application
    Filed: December 2, 2010
    Publication date: December 22, 2011
    Inventors: David Soane, Rosa Casado Portilla, John H. Dise, Robert P. Mahoney
  • Patent number: 8049039
    Abstract: 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: Grant
    Filed: June 21, 2007
    Date of Patent: November 1, 2011
    Assignee: Akzo Nobel N.V.
    Inventors: Giao Vinh Nguyen, James Alfred Ragains, Kha Carl Dang Nguyen, Charles Woodville Davis
  • Patent number: 7977513
    Abstract: 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: Grant
    Filed: August 6, 2007
    Date of Patent: July 12, 2011
    Assignees: 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
  • Publication number: 20110015439
    Abstract: 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: Application
    Filed: December 29, 2008
    Publication date: January 20, 2011
    Applicant: AKZO NOBLE N.V.
    Inventors: Martin Stefan Hanson, Leif Kenny Christian Gustafson, Johan Lif, Boris Kuzmanovic, Ulf Schröder
  • Patent number: 7759521
    Abstract: 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: Grant
    Filed: July 15, 2004
    Date of Patent: July 20, 2010
    Assignee: BASF Aktiengesellschaft
    Inventors: Elke Bleuel, Monika Wetterling, Marita Schuster, Markus Templin, Dieter Rodewald
  • Patent number: 7713903
    Abstract: 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: Grant
    Filed: August 25, 2008
    Date of Patent: May 11, 2010
    Assignee: Shell Oil Company
    Inventors: John Robert Lockemeyer, Jian Lu, Nga Thi-Huyen Vi
  • Publication number: 20100069672
    Abstract: 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: Application
    Filed: March 14, 2008
    Publication date: March 18, 2010
    Applicant: Huntsman Petrochemical LLC
    Inventors: Bruce L. Burton, Terry L. Renken
  • Patent number: 7678755
    Abstract: 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: Grant
    Filed: April 15, 2009
    Date of Patent: March 16, 2010
    Assignee: The Procter & Gamble Company
    Inventors: Jeffrey John Scheibel, Julie Ann Menkhaus, Xinbei Song, Eva Schneiderman
  • Patent number: 7678955
    Abstract: 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: Grant
    Filed: October 13, 2005
    Date of Patent: March 16, 2010
    Assignee: ExxonMobil Chemical Patents Inc
    Inventors: Luc R. M. Martens, Sebastien P. B. Kremer
  • Publication number: 20090264678
    Abstract: 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: Application
    Filed: August 25, 2008
    Publication date: October 22, 2009
    Inventors: John Robert LOCKEMEYER, Jian Lu, Nga Thi-Huyen, VI
  • Patent number: 7550631
    Abstract: Uses of a modified polyol compound having alkoxylation and having at least one anionic capping unit.
    Type: Grant
    Filed: September 24, 2007
    Date of Patent: June 23, 2009
    Assignee: The Procter & Gamble Company
    Inventors: Jeffrey John Scheibel, Julie Ann Menkhaus, Xinbei Song, Eva Schneiderman
  • Patent number: 7538080
    Abstract: 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: Grant
    Filed: September 24, 2007
    Date of Patent: May 26, 2009
    Assignee: The Procter & Gamble Company
    Inventors: Jeffrey John Scheibel, Julie Ann Menkhaus, Xinbei Song, Eva Schneiderman
  • Patent number: 7465835
    Abstract: 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: Grant
    Filed: June 1, 2007
    Date of Patent: December 16, 2008
    Assignee: Chevron U.S.A. Inc.
    Inventors: Stacey Zones, Allen Burton
  • Publication number: 20080261814
    Abstract: 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: Application
    Filed: September 23, 2005
    Publication date: October 23, 2008
    Applicants: MONSANTO TECHNOLOGY LLC, AKZO NOBEL N.V.
    Inventors: Shawn Zhu, Giao Nguyen, Kha Nguyen, Alberto Slikta, David Eaton, David Becher, Henry Agbaje, Michael Seitz
  • Patent number: 7439219
    Abstract: 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: Grant
    Filed: December 17, 2004
    Date of Patent: October 21, 2008
    Assignee: The Procter & Gamble Company
    Inventors: Jeffrey John Scheibel, Julie Ann Menkhaus
  • Patent number: 7323600
    Abstract: 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: Grant
    Filed: August 8, 2006
    Date of Patent: January 29, 2008
    Assignee: MPR Services, Inc.
    Inventors: Michael L. H. Turoff, Arthur Lee Cummings, Scott William Waite, Robert Lee Horan
  • Patent number: 7279602
    Abstract: 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: Grant
    Filed: October 2, 2004
    Date of Patent: October 9, 2007
    Assignee: BASF Aktiengesellschaft
    Inventors: Wolfgang Reif, Hans Hammer, Guenther Ruider, Anton Meier, Philip Buskens, Matthias Frauenkron
  • Patent number: 7189879
    Abstract: A new process for the production of 1-hydroxymethyl-1,3,5-triazapentane, trihydrochloride is described.
    Type: Grant
    Filed: May 24, 2005
    Date of Patent: March 13, 2007
    Assignee: Schering AG
    Inventors: Johannes Platzek, Jan Huebner, Orlin Petrov
  • Patent number: 7164044
    Abstract: 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: Grant
    Filed: February 2, 2004
    Date of Patent: January 16, 2007
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Fumiaki Morishita, Atsushi Tojo, Takahiro Takinami, Yutaka Sugiyama
  • Patent number: 7122684
    Abstract: 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: Grant
    Filed: March 13, 2003
    Date of Patent: October 17, 2006
    Assignee: Roche Colorado Corporation
    Inventors: Jack D. Brown, Peter J. Harrington, Robert C. Hughes
  • Patent number: 7119231
    Abstract: 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: Grant
    Filed: June 7, 2001
    Date of Patent: October 10, 2006
    Assignee: BASF Aktiengesellschaft
    Inventors: Matthias Frauenkron, Ulrich Müller, Wolfgang Harder, Jörg Unger, Johann-Peter Melder, Anton Meier, Walter Himmel
  • Patent number: 6909018
    Abstract: 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: Grant
    Filed: September 21, 2000
    Date of Patent: June 21, 2005
    Assignee: BASF Aktiengesellschaft
    Inventors: Johann-Peter Melder, Gerhard Blum, Wolfgang Günther, Dietmar Posselt, Knut Oppenländer
  • Patent number: 6846959
    Abstract: 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: Grant
    Filed: October 7, 2002
    Date of Patent: January 25, 2005
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Diwakar Garg, Shashank Navin Shah, Matthew Joseph Okasinski, Ava S. Drayton-Elder
  • Patent number: 6746623
    Abstract: 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: Grant
    Filed: February 1, 2002
    Date of Patent: June 8, 2004
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Caroline Sassano Slone, Kevin Rodney Lassila
  • Patent number: 6727389
    Abstract: 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: Grant
    Filed: April 16, 2003
    Date of Patent: April 27, 2004
    Assignee: Equistar Chemicals, LP
    Inventor: Krishnan Viswanathan
  • Patent number: 6723880
    Abstract: 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: Grant
    Filed: June 19, 2002
    Date of Patent: April 20, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Peter Neumann, Johann-Peter Melder, Christoph Benisch, Arthur Höhn, Joachim Pfeffinger
  • Patent number: 6632968
    Abstract: 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: Grant
    Filed: August 2, 2002
    Date of Patent: October 14, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Christian Ott, Marco Bergemann
  • Patent number: 6566556
    Abstract: 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: Grant
    Filed: November 15, 2001
    Date of Patent: May 20, 2003
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Hideaki Tsuneki, Koji Takeda, Fumiaki Morishita
  • Patent number: 6563003
    Abstract: 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: Grant
    Filed: October 16, 2002
    Date of Patent: May 13, 2003
    Assignee: Pharmacia & Upjohn Company
    Inventor: Bruce Allen Pearlman
  • Patent number: 6559342
    Abstract: 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: Grant
    Filed: November 21, 2000
    Date of Patent: May 6, 2003
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Hideaki Tsuneki, Masaru Kirishiki, Yoshitaka Arita, Yukihide Hashimoto, Tomoharu Oku, Hisakazu Shindou, Yoshiaki Urano, Fumiaki Morishita
  • Publication number: 20030065224
    Abstract: 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: Application
    Filed: August 27, 2002
    Publication date: April 3, 2003
    Inventors: Werner Peschel, Axel Hildebrandt, Bernd Bebetaling
  • Publication number: 20030028053
    Abstract: A process for preparing amines comprises reacting an epoxide of the formula (I) 1
    Type: Application
    Filed: August 2, 2002
    Publication date: February 6, 2003
    Inventors: Christian Ott, Marco Bergemann
  • Publication number: 20020123653
    Abstract: 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: Application
    Filed: November 15, 2001
    Publication date: September 5, 2002
    Inventors: Hideaki Tsuneki, Koji Takeda, Fumiaki Morishita
  • Publication number: 20020120167
    Abstract: High-purity alkanolamines, whose iron content is less than 50 ppb, are provided. Said high-purity alkanolamines can be produced by covering with an alkanolamine-resistant material at least a part of the inner wall of equipment that contacts alkanolamines from the top of the distillation tower to the storage tank in producing a high-purity alkanolamine from a crude alkanolamine by using distillation towers.
    Type: Application
    Filed: January 24, 2002
    Publication date: August 29, 2002
    Applicant: NIPPON SHOKUBAI CO., LTD.
    Inventors: Kenji Muraoka, Toshiaki Saito, Yukio Kadono
  • Patent number: 6403834
    Abstract: The invention concerns a method for preparing tris(ether-amines) of formula (I): N[A—O—(B—O)n—R]3 wherein R, A, B and n are as defined in Claim 1, comprising the reaction, in liquid phase, of an alkylene-glycol monoether of formula (II): HO—A—O—(B—O)nR wherein R, A, B and n are as defined in Claim 1, with an ammonolysis agent selected among ammonia and an etheramine of formula (I′): H3-pN[A—O—(B—O)nR]p wherein: A, B, n and R are as defined in Claim 1 and p represent 1 or 2, at a temperature ranging between 100 and 250° C., by contacting reagents with a hydrogenation-dehydrogenation catalyst.
    Type: Grant
    Filed: July 23, 2001
    Date of Patent: June 11, 2002
    Assignee: Rhodia Chimie
    Inventors: Michel Alas, Albert Bouniot