And Cyclic Ether Patents (Class 568/620)
  • Patent number: 11247975
    Abstract: Embodiments provide a process for purifying an alkylene oxide composition, which comprises (1) obtaining a crude alkylene oxide composition comprising an ionic component; (2) passing the crude alkylene oxide composition through a molecular sieve; and (3) obtaining a purified alkylene oxide composition. A purified alkylene oxide composition suitable for a subsequent process can be obtained.
    Type: Grant
    Filed: July 16, 2018
    Date of Patent: February 15, 2022
    Assignee: SK PICGLOBAL CO., LTD
    Inventors: Hanna Kim, Doojin Lee, Eun Su Lee, Taechan Ha, Dong Kyun Noh, Soo Hyun Park, Sungho Kim
  • Patent number: 11186683
    Abstract: A method of producing an alcohol ethoxylate surfactant or lubricant includes reacting a low molecular weight initiator with ethylene oxide in the presence of a polymerization catalyst, the low molecular weight initiator having a nominal hydroxyl functionality at least 1, and the polymerization catalyst being a Lewis acid catalyst having the general formula M(R1)1(R2)1(R3)1(R4)0 or 1, whereas M is boron, aluminum, indium, bismuth or erbium, R1, R2 and R3 each includes a same fluoroalkyl-substituted phenyl group, and optional R4 includes a functional group or functional polymer group. R1, R2, and R3 are the same fluoroalkyl-substituted phenyl group. The method further includes forming the alcohol ethoxylate surfactant or lubricant having a number average molecular weight of greater than the number average molecular weight of the low molecular weight initiator in the presence of the Lewis acid catalyst.
    Type: Grant
    Filed: September 14, 2018
    Date of Patent: November 30, 2021
    Assignees: Dow Global Technologies LLC, Northwestern University
    Inventors: Arjun Raghuraman, William H. Heath, Bruce D. Hook, Wanglin Yu, Sukrit Mukhopadhyay, Heather A. Spinney, David R. Wilson, Justin M. Notestein, SonBinh T. Nguyen
  • Patent number: 9994506
    Abstract: A process for transitioning a reactor from base-catalyzed polyol production to double metal cyanide (DMC)-catalyzed polyol production is described. The process includes discharging a base-catalyzed and un-neutralized product mixture from a reactor, and adding an acidified polyether polyol starter and DMC catalyst mixture to the reactor. A DMC-catalyzed polyol production reaction can then be conducted in the reactor without intermediate washing or rinsing of the reactor, and without catalyst deactivation from base or alkaline hold-up.
    Type: Grant
    Filed: April 20, 2016
    Date of Patent: June 12, 2018
    Assignee: COVESTRO LLC
    Inventors: Peter Uthe, Jack R. Reese, Stephen Bailey
  • Patent number: 9744516
    Abstract: A processing device and processing method that can perform processing of a starting material fluid while favorably controlling the processing temperature of same. The processing device includes: a processing member that leads in the starting material fluid and processes same therewithin; and a processing tank that houses the processing member and retains the processed processing products. The processing member includes: a minute duct provided therewithin and causes the flow-through of the starting material fluid; and a heat medium duct that causes the flow-through of a heat medium having a different temperature from that of the starting material fluid flowing through the minute duct. The minute duct and the heat medium duct are separated from each other so that heat exchange is possible between the starting material fluid and heat medium flowing through.
    Type: Grant
    Filed: April 9, 2014
    Date of Patent: August 29, 2017
    Assignee: Kobe Steel, Ltd.
    Inventors: Akira Matsuoka, Koji Noishiki
  • Patent number: 9605111
    Abstract: The present invention relates to a double metal cyanide (DMC) complex catalyst with an improved catalytic activity useful for epoxide polymerization. It also relates to polyether polyols prepared by a polymerization reaction using said DMC catalyst.
    Type: Grant
    Filed: November 18, 2015
    Date of Patent: March 28, 2017
    Assignee: REPSOL, S.A.
    Inventors: Maria Dolores Blanco Gonzalez, Fernando Prieto Noguera
  • Patent number: 9035105
    Abstract: A polyether polyol based on renewable materials is obtained by the in situ production of a polyether from a hydroxyl group-containing vegetable oil, at least one alkylene oxide and a low molecular weight polyol having at least 2 hydroxyl groups. The polyol is produced by introducing the hydroxyl group-containing vegetable oil, a catalyst and an alkylene oxide to a reactor and initiating the alkoxylation reaction. After the alkoxylation reaction has begun but before the reaction has been 20% completed, the low molecular weight polyol having at least 2 hydroxyl groups is continuously introduced into the reactor. After the in situ made polyether polyol product having the desired molecular weight has been formed, the in situ made polyether polyol is removed from the reactor. These polyether polyols are particularly suitable for the production of flexible polyurethane foams.
    Type: Grant
    Filed: July 20, 2012
    Date of Patent: May 19, 2015
    Assignee: Bayer MaterialScience LLC
    Inventors: Jack R. Reese, Stanley L. Hager, Micah Moore
  • Publication number: 20150073155
    Abstract: Provided is a multi-arm polyethylene glycol derivative having a narrow molecular weight distribution. A multi-arm polyethylene glycol derivative represented by the formula (1): m[Z—Yn?CH2CH2O??X—O-L-O—X??OCH2CH2?nY—Z]m??(1) wherein, L represents a group selected from a linear or branched alkylene, arylene, or cycloalkylene group having two or more carbon atoms and combinations thereof, which may have an ether bond in a chain; X represents a dehydroxylation residue of a linear sugar alcohol having 5 or 7 carbon atoms; m is the number of polyethylene glycol chains bonded to X and represents 4 or 6; n is the average addition molar number of oxyethylene groups and n represents an integer of 3 to 600; Y represents a single bond or an alkylene group which may have an ester bond, a urethane bond, an amide bond, an ether bond, a carbonate bond, a secondary amino group, a urea bond, a thioether bond or a thioester bond in a chain or at an end; and Z represents a chemically reactive functional group.
    Type: Application
    Filed: March 28, 2013
    Publication date: March 12, 2015
    Applicant: NOF CORPORATION
    Inventors: Hiroki Yoshioka, Midori Hirai, Hitoshi Nakatsuhara, Yuji Yamamoto
  • Patent number: 8957257
    Abstract: A process for a continuous production of a polyetherol first involves reacting a catalyst (5) with an alcohol starter (3) or an alkoxylated precursor, to give a mixture comprising an alcoholate and water. Water is then removed from the mixture. The process further involves feeding the alcoholate into a bubble column and feeding an alkylene oxide into the bottom of a compartment of the bubble column, such that the alkylene oxide rises in the alcoholate. The alkylene oxide then reacts with the alcoholate or a secondary product from the reaction between the alcoholate and alkylene oxide, to give the polyetherol.
    Type: Grant
    Filed: July 18, 2012
    Date of Patent: February 17, 2015
    Assignee: BASF SE
    Inventors: Vinit Chilekar, Oliver Bey, Andreas Brodhagen, Achim Loffler, Fatemeh Admadnian, Ralf Bohling, Christoph Grossmann, Ulrich Kammel, Ronald Adelmann, Thomas Ostrowski, Milind Joshi, Gerrit Waters, Dirk Meckelnburg
  • Publication number: 20150038664
    Abstract: To provide a method for producing a polyether having a weight average molecular weight of from 15,000 to 550,000. The method for producing a polyether having a weight average molecular weight of from 15,000 to 550,000, comprises subjecting a cyclic monomer to a ring-opening addition reaction to an initiator having at least one active hydrogen atom per molecule in the presence of a double metal cyanide complex catalyst and an organic solvent, wherein the relative permittivity of the organic solvent is at most 18, and the amount of the organic solvent is from 6 to 300 parts by mass per 100 parts by mass in total of the initiator and the cyclic monomer.
    Type: Application
    Filed: October 18, 2014
    Publication date: February 5, 2015
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Tomohiro HAYASHI, Chitoshi SUZUKI, Takeaki ARAI, Hideaki TANAKA
  • Publication number: 20140275632
    Abstract: This invention relates to novel double metal cyanide catalysts and to a process for the production of these double metal cyanide catalysts. These DMC catalysts can be used to prepare polyoxyalkylene polyols which have low amounts of high molecular weight tail compared polyoxyalkylene polyols prepared from DMC catalysts of the prior art.
    Type: Application
    Filed: March 12, 2013
    Publication date: September 18, 2014
    Applicant: Bayer MaterialScience, LLC
    Inventors: Kenneth G. McDaniel, George G. Combs
  • Publication number: 20140275633
    Abstract: Low molecular weight polyoxyalkylene polyether polyols having a hydroxyl content of from about 3.4 to about 12.1% by weight, and OH numbers of from about 112 to about 400 are produced by a continuous process using a DMC catalyst. In the process of the present invention, oxyalkylation conditions are established in a continuous reactor in the presence of a DMC catalyst; alkylene oxide and a low molecular weight starter are continuously introduced into the continuous reactor; a partially oxyalkylated polyether polyol is recovered from the reactor; and the recovered partially oxyalkylated polyether polyol is allowed to further reactor until the unreacted alkylene oxide content of the mixture is reduced to 0.001% or less by weight. The alkoxylation of the present invention must be carried out a pressure sufficiently high to prevent deactivation of the DMC catalyst. Pressures of from 45 to 55 psia are preferred.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Inventors: Jack Reese, Paul Webb
  • Publication number: 20140142344
    Abstract: The invention relates to a process for the preparation of polyether polyols with equivalent molecular weights of from 8,000 to 20,000 g/mol from one or more H-functional starter compounds and one or more alkylene oxides in the presence of a double metal cyanide catalyst, characterized in that the alkylene oxides are metered into the reactor in the course of from 15 to 23 h.
    Type: Application
    Filed: June 26, 2012
    Publication date: May 22, 2014
    Applicant: BAYER INTELLECTUAL ROPERTY GMBH
    Inventors: Klaus Lorenz, Jörg Hofmann, Horst Zwick, Christian Steinlein, Edward Browne
  • Publication number: 20140142271
    Abstract: The present invention is directed to the synthesis of polyols in a continuous process which comprises the continuous generation of oligomeric polyoxyalkylene polyether polyol by acid catalysis.
    Type: Application
    Filed: July 3, 2012
    Publication date: May 22, 2014
    Applicant: REPSOL, S.A.
    Inventors: Beatriz Almena Munoz, Carlos Rubio Rodriguez, Felix Fernandez Villar
  • Patent number: 8692030
    Abstract: A method of making a biobased-petrochemical hybrid polyol is provided. This method includes reacting a cyclic ether with a vegetable oil-based polyol in the presence of a cationic catalyst or a coordinative catalyst that includes a vegetable oil-based polyol ligand to form the biobased-petrochemical hybrid polyol. The biobased-petrochemical hybrid polyol that is created has a number average molecular weight of about 3,000 to about 6,000 and has a structure that is about 22% to about 36% biobased. In one aspect of the present invention, the cyclic ether is propylene oxide, and the propoxylated polyol formed from the propylene oxide and vegetable oil-based polyol is then reacted with ethylene oxide in the presence of a superacid catalyst to create a block copolymer with a terminal polyethylene oxide block having a high percentage of terminal primary hydroxyl groups.
    Type: Grant
    Filed: April 20, 2006
    Date of Patent: April 8, 2014
    Assignee: Pittsburg State University
    Inventors: Mihail Ionescu, Zoran S. Petrovic, Ivan Javni
  • Patent number: 8680002
    Abstract: A double metal cyanide catalyst of the present invention having a controlled reactivity for preparing a polyol, which contains an ether ligand having a molecular weight of less than 200 and a glycol ligand having a molecular weight of less than 200 can be used in the preparation of a polyol having a unsaturation degree suitable for direct use for producing a polyurethane having suitable properties.
    Type: Grant
    Filed: November 4, 2008
    Date of Patent: March 25, 2014
    Assignee: SKC Co., Ltd.
    Inventors: Jun Tae Ahn, Sang Hyun Lee, Young Chan Jeon, Sang Wook Park, Chang Ha Park, In Ha Park
  • Publication number: 20140080745
    Abstract: A surfactant composition selected from the group consisting of; (R1O)CH2CH(OCH2CH2)1-20OHCH2(OR2) and mixtures thereof; wherein at least one of R1 and R2 are secondary alkyl groups including from 3 to 9 Carbon atoms; an aqueous coating composition including an aqueous polymeric dispersion; and certain other compositions including the surfactant composition are provided. Also provided is a method for forming a coating.
    Type: Application
    Filed: September 16, 2013
    Publication date: March 20, 2014
    Inventors: Irina V. Graf, Arkady L. Krasovskiy
  • Patent number: 8674146
    Abstract: The invention relates to a method for producing alkylene oxide addition products by reaction of compounds having a nucleophilic center with alkylene oxides in a reactor having a large inner surface. The invention is characterized in that the reaction is carried out exclusively in the liquid phase.
    Type: Grant
    Filed: August 29, 2007
    Date of Patent: March 18, 2014
    Assignee: Cognis IP Management GmbH
    Inventors: Stefan Franzen, Franz Büttgen, Ingomar Mrozek, Bernhard Gutsche
  • Publication number: 20140018459
    Abstract: A two stage alkoxlyation process for preparing a short-chain polyether polyol from a starter compound comprising from 3 to 9 hydroxyl groups and at least one alkylene oxide, wherein said starter compound has a hydroxy equivalent weight of from 22 to 90 Da. Said process comprises a first stage alkoxlyation using a superacid catalyst to prepare an oligomeric alkoxylated starter compound that is further alkoxylated to the short-chain polyether polyol of the invention in a second stage using a DMC catalyst. The process of the present invention may be performed continuously, in a batch, or semi-batch process.
    Type: Application
    Filed: March 19, 2012
    Publication date: January 16, 2014
    Applicant: DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Pavel L. Shutov, Hanno R. Van der Wal, Jean-Paul Masy, David A. Babb
  • Publication number: 20130345476
    Abstract: This invention relates to an improved continuous process for the production of low molecular weight polyoxyalkylene polyether polyols. These polyoxyalkylene polyether polyols have a hydroxyl content of from about 3.4 to about 12.1% by weight, and may also be characterized as having an OH number of from about 112 to about 400. The process comprises establishing oxyalkylation conditions in a continuous reactor in the presence of a DMC catalyst; continuously introducing alkylene oxide and a low molecular weight starter into the continuous reactor; recovering a partially oxyalkylated polyether polyol from the reactor; and allowing the recovered partially oxyalkylated polyether polyol to further reactor until the unreacted alkylene oxide content of the mixture is reduced to 0.001% or less by weight.
    Type: Application
    Filed: June 21, 2012
    Publication date: December 26, 2013
    Applicant: Bayer MaterialScience LLC
    Inventor: Jack R. Reese
  • Patent number: 8519196
    Abstract: The alkoxylate mixtures comprise alkoxylates of the formula (I) C5H11CH(C3H7)CH2O(B)p(A)n(B)m(A)qH??(I) where A is ethyleneoxy, B, in each case independently, are C3-10-alkyleneoxy or mixtures thereof, groups A and B being present in the form of blocks in the stated sequence, p is a number from 0 to 10, n is a number greater than 0 to 20, m is a number greater than 0 to 20, q is a number greater than 0 to 10, p+n+m+q is at least 1, from 70 to 99% by weight of alkoxylates A1, in which C5H11 is n-C5H11, and from 1 to 30% by weight of alkoxylates A2, in which C5H11 is C2H5CH(CH3)CH2 and/or CH3CH(CH3)CH2CH2, being present in the mixture.
    Type: Grant
    Filed: October 14, 2004
    Date of Patent: August 27, 2013
    Assignee: BASF Aktiengesellschaft
    Inventors: Markus Klumpe, Juergen Tropsch, Rolf-Dieter Kahl, Roland Boehn, Susanne Stutz, Ralf Noerenberg
  • Patent number: 8501998
    Abstract: A method for producing a polyoxyalkylene derivative represented by the following general formula (1): Z(OA)n-OH]m??(1) wherein Z is a residue of glycerin or diglycerin, OA is an oxyalkylene group having 2 to 4 carbon atoms, n is an average number of moles of the oxyalkylene group added and is 80 to 800, and m is 3 to 4, the method comprising steps (A), (B), (C), (D), (E), and (F) defined in the present description.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: August 6, 2013
    Assignee: NOF Corporation
    Inventors: Satoshi Matsuo, Kazuhiro Hashimoto, Ken-ichiro Nakamoto, Chika Itoh
  • Patent number: 8461285
    Abstract: The present invention relates to a process for the catalytic preparation of polyetherols, wherein the power input by means of at least one stirrer and/or by means of at least one pump, based on the reactor volume, is in the range from 0.001 to 8.2 kW/m3.
    Type: Grant
    Filed: March 8, 2011
    Date of Patent: June 11, 2013
    Assignee: BASF SE
    Inventors: Fatemeh Ahmadnian, Vinit Chilekar, Andreas Brodhagen, Achim Loeffler, Hermann Graf
  • Publication number: 20130143909
    Abstract: Among other aspects, provided herein is a mixed-acid salt of a water-soluble polymer-drug conjugate, along with related methods of making and using the same. The mixed-salt acid salt is stably formed, and appears to be more resistant to hydrolytic degradation than the corresponding predominantly pure acid salt or free base forms of the polymer-drug conjugate. The mixed acid salt is reproducibly prepared and recovered, and provides surprising advantages over non-mixed acid salt forms of the water-soluble polymer drug conjugate.
    Type: Application
    Filed: November 18, 2010
    Publication date: June 6, 2013
    Applicant: Nektar Therapeutics
    Inventors: Anthony O. Chong, Seoju Lee, Bhalchandra V. Joshi, Brian Bray, Shaoyong Nie, Patrick L. Spence, Antoni Kozlowski, Samuel P. McManus, Sachin Tipnis, Greg Lavaty, David Swallow, John R. Handley, Anthony G. Schaefer
  • Patent number: 8378054
    Abstract: A process for preparing polyaryl ethers in which a polycondensation of the monomer building blocks is carried out using microwave irradiation leads to thermoplastic molding compositions having improved color properties.
    Type: Grant
    Filed: November 11, 2008
    Date of Patent: February 19, 2013
    Assignee: BASF SE
    Inventors: Martin Weber, Volker Warzelhan, Faissal-Ali El-Toufaili, Andreas Greiner, Heiner Stange, Seema Agrarwal
  • Patent number: 8378144
    Abstract: A process for preparing polyoxymethylene homopolymers or copolymers (7) by homopolymerization or copolymerization of trioxane, starting from methanol (1), in which methanol (1) is oxidized in a first reactor in a first production plant (A) to give an aqueous formaldehyde-comprising stream (2) which is fed to a second production plant (B) in which pure trioxane (6) is obtained and removal of low boilers (5) by distillation is carried out and the pure trioxane (6) is fed to a third production plant (C) in which it is homopolymerized or copolymerized to form polyoxymethylene homopolymers or copolymers (7), wherein the low boiler stream (5) from the low boiler removal column (K 2) is recycled to the feed stream into the first reactor in the first production plant (A), is proposed.
    Type: Grant
    Filed: December 11, 2008
    Date of Patent: February 19, 2013
    Assignee: BASF SE
    Inventors: Markus Siegert, Tobias Kortekamp, Eckhard Stroefer, Christoph Sigwart, Neven Lang
  • Patent number: 8367876
    Abstract: A method wherein the separability between a polyether phase and a water phase is improved when a water-soluble compound is extracted and removed from a polyether containing the water-soluble compound with water is provided. The method comprises producing a polyether including a step of extracting and removing a water-soluble compound from a polyether containing the water-soluble compound with water, wherein the step includes at least an operation of separating a water phase from a polyether phase at a temperature of 50° C.
    Type: Grant
    Filed: July 8, 2005
    Date of Patent: February 5, 2013
    Assignee: Kaneka Corporation
    Inventor: Takeshi Kawamura
  • Patent number: 8354559
    Abstract: A polyether is synthesized by ring opening polymerization of an alkylene oxide with an initiator having at least one hydroxyl group, in the presence of a double metal cyanide complex catalyst, then a powder of an inorganic adsorbent containing at least 50 vol % of fine particles having a particle size of at most 26 ?m and further containing at least 90 vol % of fine particles having a particle size of at most 44 ?m, is added to the crude polyether, and a metal derived from the above double metal cyanide complex catalyst is adsorbed on the powder, followed by separating the powder from the crude polyether.
    Type: Grant
    Filed: March 2, 2009
    Date of Patent: January 15, 2013
    Assignee: Asahi Glass Company, Limited
    Inventors: Chitoshi Suzuki, Tomoyuki Suzuki, Shigeru Ikai
  • Patent number: 8344098
    Abstract: Processes for producing polytrimethylene ether glycol and copolymers thereof are provided wherein, by condensing and recycling at least a portion of the vapor phase produced as the reaction progresses, the yield loss and polymer color are reduced.
    Type: Grant
    Filed: December 17, 2010
    Date of Patent: January 1, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: Christian Hoffmann, Scott Christopher Jackson, Edward R. Murphy, Bhuma Rajagopalan
  • Patent number: 8334323
    Abstract: Disclosed are compositions of the formula wherein R1 and R2 are each independently hydrogen or a linear or branched alkyl group containing from (1) to about (18) carbon atoms, provided that R1 and R2 together contain from about (8) to about (18) carbon atoms, and further provided that less than about 10 mole percent of R1 or R2 is hydrogen; R3 is hydrogen or an alkyl radical containing from (1) to about (6) carbon atoms; R4 and R5 are each independently hydrogen or an alkyl radical containing from (2) to about (6) carbon atoms, provided that R4 and R5 together contain from (2) to about (6) carbon atoms; m is an average value ranging from (0) to about (10), and n is an average value ranging from about (3) to (about 40), provided that the group containing m and the group containing n may be exchanged with one another as to position; and z is an average value ranging from about (0.5) to about (5).
    Type: Grant
    Filed: December 23, 2008
    Date of Patent: December 18, 2012
    Assignee: Dow Global Technologies LLC
    Inventors: Pierre T. Varineau, Wanglin Yu, Kara S. Weber, Cynthia L. Rand
  • Publication number: 20120294813
    Abstract: The invention relates to highly functional, aliphatic, branched polyethers produced from oxiranes, in particular ethylene oxide and glycidol or the sulfur- or nitrogen-containing analogues thereof. The branched polyethers are in particular suited as a matrix for pharmacological and cosmetic active agents.
    Type: Application
    Filed: December 10, 2010
    Publication date: November 22, 2012
    Inventors: Holger Frey, Daniel Wilms, Frederik Wurm
  • Patent number: 8293866
    Abstract: The present invention relates to a method of producing a poly(ethylene oxide) copolymerized with one alkylene oxide and to a poly(ethylene oxide-co-alkylene oxide) copolymer produced by such method, a photovoltaic device containing such poly(ethylene oxide-co-alkylene oxide)-copolymer, and to uses of such poly(ethylene oxide)-(alkylene oxide)-copolymer.
    Type: Grant
    Filed: March 27, 2007
    Date of Patent: October 23, 2012
    Assignee: Sony Deutschland GmbH
    Inventors: Gabriele Nelles, Silvia Rosselli, Tzenka Miteva, Akio Yasuda, Christo Tsvetanov, Rayna Stamenova, Iliyana Berlinova, Petar Petrov
  • Patent number: 8247526
    Abstract: Polyalkylene ether glycol or copolymer thereof are prepared by contacting at least one alkanediol with a alkanediol containing cyclic sulfate.
    Type: Grant
    Filed: December 20, 2010
    Date of Patent: August 21, 2012
    Assignee: E I du Pont de Nemours and Company
    Inventors: Aaron Minter, Edward R. Murphy, James M. Tocyloski
  • Publication number: 20120108780
    Abstract: A method for producing a polyol, the method including: (a) reacting at least one selected from the group consisting of an unsaturated natural fat, an unsaturated natural fatty acid, and a fatty acid ester with dinitrogen monoxide, to obtain a first intermediate; (b) reacting the first intermediate with a hydrogenation reagent, to obtain a second intermediate; (c) reacting the second intermediate with at least one alkylene oxide, to obtain a polyol.
    Type: Application
    Filed: July 9, 2010
    Publication date: May 3, 2012
    Applicant: BASF SE
    Inventors: Andreas Kunst, Michael Schelper, Joaquim Henrique Teles, Berend Eling, Jenny Reuber, Gerd-Dieter Tebben
  • Publication number: 20120016049
    Abstract: An object of the present invention is to provide a polyoxyalkylene polyol and a polyoxyalkylene monool, capable of producing a urethane elastomer and a urethane foam which are sufficiently excellent in mechanical properties and moisture resistance. The present invention is directed to a polyoxyalkylene polyol or monool (S), which is an alkylene oxide adduct of an active hydrogen-containing compound (H), wherein 40% or more of hydroxyl groups located at the terminal are primary hydroxyl group-containing groups represented by the general formula (1) shown below, and a hydroxyl value x, the total degree of unsaturation y and the content of ethylene oxide z satisfy a relationship of the mathematical expression (1). [In the general formula (1), R1 represents a hydrogen atom, an alkyl group having 1 to 12 carbon atoms, a cycloalkyl group or a phenyl group, each of which may be substituted with a halogen atom or an aryl group.] y?28.
    Type: Application
    Filed: March 24, 2010
    Publication date: January 19, 2012
    Applicant: SANYO CHEMICAL INDUSTRIES, LTD.
    Inventors: Hiromichi Nakaminami, Shogo Sugahara, Shu Yasuhara, Kouichi Murata
  • Patent number: 8058388
    Abstract: The invention relates to a process for preparing polyethers of the formula (I) R1—(CHR2CHR3—O)n—H??(I) where n=1 to 12 000, R1=a radical comprising at least one carbon atom and R2 and R3 are each independently H or a hydrocarbon radical, where the units designated with the index n may be the same or different (the R2 and R3 radicals in the different units n may thus be the same or different), by alkoxylating a starter compound which comprises the R1 radical in the presence of a double metal cyanide catalyst (DMC catalyst) in a loop reactor, which is characterized in that the alkoxylation is performed in a loop reactor which has an ejector mixing nozzle, in which all substances involved in the reaction or assistants can be added to the circulated reaction mixture, an alkylene oxide or a plurality of different alkylene oxides being metered into the reaction mixture via the ejector mixing nozzle at the same time (random addition) or at different times (block addition).
    Type: Grant
    Filed: November 25, 2008
    Date of Patent: November 15, 2011
    Assignee: Evonik Goldschmidt GmbH
    Inventors: Andreas Sellmann, Irina Neisius-Sellmann, legal representative, Volker Zellmer
  • Patent number: 8034980
    Abstract: A process for preparing polyether polyols by reaction of the following starting materials: a) one or more alkylene oxides and, if appropriate, carbon dioxide and also b) one or more H-functional starter substances, in the presence of a catalyst, in a reaction unit having a plurality of parallel layers A, B which are microstructured so that each layer has a multiplicity of channels which are arranged parallel to one another and form a continuous flow path from one side of the plate to the opposite side of this, wherein a distribution device for introduction of the starting materials and the catalyst is provided at one end of the channels of the layers A and a collection device for the reaction mixture is provided at the other end of these is proposed.
    Type: Grant
    Filed: May 22, 2007
    Date of Patent: October 11, 2011
    Assignee: BASF Aktiengesellschaft
    Inventors: Achim Loeffler, Wolfgang Loth, Ralf Boehling, Thomas Ostrowski, Michael Stoesser, Hartwig Voss, Axel Schimpf
  • Publication number: 20110224396
    Abstract: The present invention relates to a process for the catalytic preparation of polyetherols, wherein the power input by means of at least one stirrer and/or by means of at least one pump, based on the reactor volume, is in the range from 0.001 to 8.2 kW/m3.
    Type: Application
    Filed: March 8, 2011
    Publication date: September 15, 2011
    Applicant: BASF SE
    Inventors: Fatemeh AHMADNIAN, Vinit Chilekar, Andreas Brodhagen, Achim Löffler, Hermann Graf
  • Patent number: 8017814
    Abstract: A process for the preparation of a polyether polyol containing at most about 15 ppm of sodium and potassium, comprising: (a) reacting an initiator having at least two active hydrogen atoms with at least one alkylene oxide in the presence of a catalyst having an alkali metal hydroxide to form a polyether polyol reaction product; (b) neutralizing the polyether polyol reaction product obtained in step (a) by contacting this reaction product with phosphoric acid and water; and (c) removing the salt crystals from the polyether polyol and recovering the neutralized polyether polyol containing at most about 15 ppm of sodium and potassium, wherein no adsorption agent and no hydrate of a metal salt of the acid are used before, during or after the neutralization.
    Type: Grant
    Filed: February 3, 2009
    Date of Patent: September 13, 2011
    Assignee: Shell Oil Company
    Inventors: Melis Hasselaar, Parminder Singh Sangha, Andreas Wilhelmus De Winter
  • Publication number: 20110218324
    Abstract: In a process for preparing a polyether alcohol d1) by reaction of a) at least one compound having at least three hydrogen atoms reactive with alkylene oxides and a molecular weight Mn of not more than 600 g/mol with b) an alkylene oxide by using c) a catalyst, said reaction is carried out in the presence of a polyether alcohol d) having a hydroxyl number of 100-800 mg KOH/g and a functionality of 1.5 to 8.
    Type: Application
    Filed: March 1, 2011
    Publication date: September 8, 2011
    Applicant: BASF SE
    Inventors: Sirus ZARBAKHSH, Markus SCHÜTTE, Holger SEIFERT, Vinit CHILEKAR, Berend ELING, Jan RUDLOFF
  • Patent number: 7968754
    Abstract: The invention relates to a process for the continuous preparation of polyether alcohols by reaction of alkylene oxides with H-functional starter substances in the presence of DMC catalysts, which comprises, at the beginning of the process a) firstly placing initial charge material and DMC catalyst in a reactor, b) metering in alkylene oxide so that the metering rate which is maintained for continuous operation of the reactor is reached in a time of from 100 to 3000 seconds, c) metering in starter substance during or after step b) so that the metering rate which is maintained for continuous operation of the reactor is reached in a time of from 5 to 500 seconds, d) after the fill level in the reactor which is desired for continuous operation of the reactor has been reached, taking product off continuously from the reactor while at the same time metering in starter substance and alkylene oxides in such an amount that the fill level in the reactor remains constant and metering in DMC catalyst so that the catalys
    Type: Grant
    Filed: November 6, 2004
    Date of Patent: June 28, 2011
    Assignee: BASF Aktiengesellschaft
    Inventors: Thomas Ostrowski, Raimund Ruppel, Eva Baum, Kathrin Harre
  • Patent number: 7947756
    Abstract: Process for making a slabstock, visco-elastic, flexible, polyurethane foam which process comprises reacting a polyisocyanate and a polyol at an index of 60-95 and using a blowing agent, wherein 5-50 and preferably 10-40% by weight of the polyol used is castor oil. The foams and a polyol composition are claimed as well.
    Type: Grant
    Filed: June 12, 2007
    Date of Patent: May 24, 2011
    Assignee: Huntsman International LLC
    Inventors: Kris Andries, Johan Antoine Stefaan Macken
  • Patent number: 7919575
    Abstract: The process of the present invention provides for the manufacture of lower molecular weight DMC-catalyzed polyols than is possible using non-acidified continuous addition of starter (CAOS) feeds, by adding excess acid to a starter feed stream over that required for mere neutralization of the basicity of the starter. The benefits of the invention also extend to starters which do not contain basicity. Polyether polyols made by the inventive process may be used to produce improved polyurethane products such as coatings, adhesives, sealants, elastomers, foams and the like.
    Type: Grant
    Filed: May 25, 2010
    Date of Patent: April 5, 2011
    Assignee: Bayer MaterialScience LLC
    Inventor: Edward Browne
  • Publication number: 20110077434
    Abstract: In the present invention, when polyoxyalkylene alkyl ethers are produced by adding propylene oxide to a linear alcohol in the presence of an alkali catalyst, the proportion of the alkali catalyst and the proportion of propylene oxide, per mole of active hydrogen of the linear alcohol, are in specific ranges respectively and the temperature in the addition between the linear alcohol and propylene oxide is in a specific range.
    Type: Application
    Filed: December 26, 2008
    Publication date: March 31, 2011
    Applicant: KAO CORPORATION
    Inventors: Yasuki Ohtawa, Yoshifumi Nishimoto, Tetsuaki Fukushima
  • Patent number: 7858829
    Abstract: The invention relates to a process and to an apparatus for preparing polyether alcohols by alkoxylating alcohols, and also long-chain polyether alcohols having a narrow product distribution. The process is preferably carried out continuously in the liquid phase in a microstructured reactor. An alkylene oxide or different alkylene oxides are metered at one or more points into the channels of the microreactor. The channels are cooled with the aid of a cooling medium or heated with the aid of a heating medium.
    Type: Grant
    Filed: March 17, 2005
    Date of Patent: December 28, 2010
    Assignee: Evonik Goldschmidt GmbH
    Inventors: Roland Hubel, Georg Markowz, Manfred Recksik, Markus Rudek, Dietmar Wewers, Florian Zeller-Schuldes
  • Patent number: 7750191
    Abstract: The invention provides a process for continuously preparing polyether alcohols by adding alkylene oxides to H-functional starter substances using a DMC catalyst, comprising the steps of a) preparing a precursor by continuously metering an H-functional starter substance, an alkylene oxide or a mixture of at least two alkylene oxides and the required amount of DMC catalyst into a continuous reactor, b) continuously withdrawing the precursor from step a) from the reactor, c) continuously metering the product from step a), an alkylene oxide different from that in step a) or a mixture of at least two alkylene oxides different from that in step a) and, if appropriate, the required amount of DMC catalyst into a further continuous reactor.
    Type: Grant
    Filed: June 22, 2005
    Date of Patent: July 6, 2010
    Assignee: BASF Aktiengesellschaft
    Inventors: Thomas Ostrowski, Stephan Bauer, Achim Loeffler, Juergen Winkler
  • Publication number: 20100125126
    Abstract: The present invention provides a process for conditioning double metal cyanide (DMC) catalysts, which are employed in the preparation of polyether polyols based on starter compounds having active hydrogen atoms, the preparation of polyether polyols using the conditioned catalysts and the use of the polyether polyols prepared in this way for the preparation of polyurethane materials.
    Type: Application
    Filed: January 26, 2010
    Publication date: May 20, 2010
    Inventors: Klaus Lorenz, Jörg Hofmann
  • Publication number: 20090292147
    Abstract: The invention relates to a process for the continuous preparation of polyether alcohols by reacting H-functional initiators with alkylene oxides using basic catalysts, wherein at least one initiator is metered with at least one alkylene oxide continuously into a back-mixing reactor and the reaction product is removed continuously from the back-mixing reactor.
    Type: Application
    Filed: June 15, 2007
    Publication date: November 26, 2009
    Applicant: BASF SE
    Inventors: Thomas Ostrowski, Johannes Adam, Dirk Meckelnburg, Ulrike Mahn, Renata Jovanovic, Achim Loeffler
  • Patent number: 7586011
    Abstract: The present invention provides a process for preparing polyoxyalkylene glycols of a certain molecular weight in one stage by copolymerizing tetrahydrofuran and alpha,omega-diols as the comonomer in the presence of a heteropolyacid and of a hydrocarbon, by distilling off a mixture of water and this hydrocarbon from the copolymerization, which comprises terminating the polymerization when this molecular weight is attained by adding water, comonomer, butanediol or butanediol-water mixtures.
    Type: Grant
    Filed: December 16, 2003
    Date of Patent: September 8, 2009
    Assignee: BASF SE
    Inventors: Martin Haubner, Rolf Pinkos
  • Patent number: 7553921
    Abstract: A polyether polyol composition, the reactivity of which with a polyisocyanate can be controlled, to thereby obtain an isocyanate group-terminated prepolymer having excellent storage stability. A polyether polyol composition comprising a polyether polyol obtained by a ring-opening polymerization of an alkylene oxide in the presence of a composite metal cyanide complex catalyst, and a phosphoric acid compound comprising a phosphoric acid selected from orthophosphoric acid, polyphosphoric acid and polymetaphosphoric acid, and/ or a partial ester of such a phosphoric acid, wherein the polyether polyol composition contains metals derived from the composite metal cyanide complex catalyst in an amount of from 1 to 30 ppm based on the polyether polyol, and the above phosphoric acid compound in an amount of from 0.5 to 100 ppm based on the polyether polyol.
    Type: Grant
    Filed: July 26, 2005
    Date of Patent: June 30, 2009
    Assignee: Asahi Glass Company, Limited
    Inventors: Chitoshi Suzuki, Hiroki Fukuda, Shigeru Ikai
  • Patent number: 7528288
    Abstract: The invention provides a process for preparing polyether alcohols by adding alkylene oxides onto H-functional starter substances using DMC catalysts, which comprises, in a first step, adding propylene oxide or a mixture of propylene oxide and ethylene oxide onto H-functional starter substances and, in a second step, transferring the product thus formed into a tubular reactor in which mixtures of ethylene oxide and propylene oxide are metered in at least two metering points, the proportions of ethylene oxide and propylene oxide in the mixtures metered in in the first and in the second step being different, the proportions of ethylene oxide and propylene oxide in the mixtures metered in at least two metering points in the second step being different, and the mixture metered in in the second step, at least at the last metering point, comprising at least 40% by weight of ethylene oxide.
    Type: Grant
    Filed: August 21, 2006
    Date of Patent: May 5, 2009
    Assignee: BASF Aktiengesellschaft
    Inventors: Thomas Ostrowski, Achim Loeffler, Raimund Ruppel