CO5160377A1 - Polimerizacion de oxido de etileno utilizando catalizadores de cianuro de metal - Google Patents

Polimerizacion de oxido de etileno utilizando catalizadores de cianuro de metal

Info

Publication number
CO5160377A1
CO5160377A1 CO00051076A CO00051076A CO5160377A1 CO 5160377 A1 CO5160377 A1 CO 5160377A1 CO 00051076 A CO00051076 A CO 00051076A CO 00051076 A CO00051076 A CO 00051076A CO 5160377 A1 CO5160377 A1 CO 5160377A1
Authority
CO
Colombia
Prior art keywords
ethylene oxide
metal cyanide
polymerization
cyanide catalysts
polyether
Prior art date
Application number
CO00051076A
Other languages
English (en)
Inventor
Katherine S Clement
Louis L Walker
Richard M Wehmeyer
Robert H Whitmarsh
Original Assignee
Dow Chemical Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=27558275&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CO5160377(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Dow Chemical Co filed Critical Dow Chemical Co
Publication of CO5160377A1 publication Critical patent/CO5160377A1/es

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G65/00Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
    • C08G65/02Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
    • C08G65/04Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers only
    • C08G65/06Cyclic ethers having no atoms other than carbon and hydrogen outside the ring
    • C08G65/08Saturated oxiranes
    • C08G65/10Saturated oxiranes characterised by the catalysts used
    • C08G65/12Saturated oxiranes characterised by the catalysts used containing organo-metallic compounds or metal hydrides
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J27/00Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
    • B01J27/24Nitrogen compounds
    • B01J27/26Cyanides
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G65/00Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
    • C08G65/02Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
    • C08G65/26Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds
    • C08G65/2603Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds the other compounds containing oxygen
    • C08G65/2615Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds the other compounds containing oxygen the other compounds containing carboxylic acid, ester or anhydride groups
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G65/00Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
    • C08G65/02Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
    • C08G65/26Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds
    • C08G65/2642Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds characterised by the catalyst used
    • C08G65/2645Metals or compounds thereof, e.g. salts
    • C08G65/2663Metal cyanide catalysts, i.e. DMC's
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G65/00Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
    • C08G65/02Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
    • C08G65/26Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds
    • C08G65/2642Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds characterised by the catalyst used
    • C08G65/2693Supported catalysts
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G65/00Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
    • C08G65/02Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
    • C08G65/26Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds
    • C08G65/2696Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds characterised by the process or apparatus used
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/02Impregnation, coating or precipitation
    • B01J37/0215Coating
    • B01J37/0221Coating of particles
    • B01J37/0223Coating of particles by rotation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Toxicology (AREA)
  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Polyethers (AREA)

Abstract

Un proceso para preparar un poliéter, que comprende(a) combinar un compuesto iniciador que tiene uno o más grupos oxialquilatables, óxido de etileno y un complejo de catalizador de cianuro de metal para formar una mezcla, y(b) someter la mezcla a condiciones suficientes para etoxilar los grupos oxialquilatables del iniciador para formar un poliéter.
CO00051076A 1999-07-09 2000-07-07 Polimerizacion de oxido de etileno utilizando catalizadores de cianuro de metal CO5160377A1 (es)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US14307899P 1999-07-09 1999-07-09
US14307599P 1999-07-09 1999-07-09
US14308299P 1999-07-09 1999-07-09
US14307999P 1999-07-09 1999-07-09
US14308199P 1999-07-09 1999-07-09
US20577100P 2000-05-19 2000-05-19

Publications (1)

Publication Number Publication Date
CO5160377A1 true CO5160377A1 (es) 2002-05-30

Family

ID=27558275

Family Applications (1)

Application Number Title Priority Date Filing Date
CO00051076A CO5160377A1 (es) 1999-07-09 2000-07-07 Polimerizacion de oxido de etileno utilizando catalizadores de cianuro de metal

Country Status (15)

Country Link
US (1) US6429342B1 (es)
EP (1) EP1200506B1 (es)
JP (1) JP2003504468A (es)
KR (1) KR20020019949A (es)
CN (1) CN1205250C (es)
AR (1) AR025544A1 (es)
AT (1) ATE323119T1 (es)
AU (1) AU5923400A (es)
BR (1) BR0013193A (es)
CA (1) CA2378466A1 (es)
CO (1) CO5160377A1 (es)
DE (1) DE60027302T2 (es)
ES (1) ES2257302T3 (es)
MX (1) MXPA02000310A (es)
WO (1) WO2001004183A1 (es)

Families Citing this family (56)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003525328A (ja) * 2000-02-29 2003-08-26 ビーエーエスエフ アクチェンゲゼルシャフト 多金属シアニド化合物の製造方法
US6429166B1 (en) * 2000-05-19 2002-08-06 Dow Global Technologies Inc. Method for preparing metal cyanide catalyst/polyol initiator slurries
BR0308674A (pt) * 2002-03-19 2005-02-01 Dow Global Technologies Inc Métodos para preparar catalisador de cianeto metálico usando sais metálicos insolúveis
BR0308456A (pt) * 2002-03-21 2005-01-11 Dow Global Technologies Inc Método para preparar complexos catalisadores de cianeto metálico usando agentes complexantes parcialmente miscìveis, uso de tais catalisadores e produto obtido
CA2483310C (en) 2002-04-26 2011-09-13 Basf Aktiengesellschaft C10-alkanol alkoxylates and their use
ES2342464T3 (es) 2002-04-26 2010-07-07 Basf Se Mezclas de alcoxilatos de alcanol c sb 10 /sb y su aplicacion.
US6835801B2 (en) * 2002-07-19 2004-12-28 Bayer Antwerp, N.V. Activated starter mixtures and the processes related thereto
DE10242399A1 (de) * 2002-09-12 2004-03-18 Basf Ag Verfahren zur Herstellung von Polyetherolen
DE10243365A1 (de) 2002-09-18 2004-04-01 Basf Ag Alkoxylate mit niedrigem Restalkohol-Gehalt
DE10243366A1 (de) 2002-09-18 2004-04-01 Basf Ag Herstellung von Alkoxylaten bei optimierten Reaktionsdrücken
DE10243362A1 (de) * 2002-09-18 2004-04-01 Basf Ag Herstellung von Alkanolalkoxylaten bei optimierten Reaktionstemperaturen
AU2003301912A1 (en) * 2002-11-07 2004-06-03 Dow Global Technologies, Inc. Method for preparing metal cyanide catalysts using polymerizable complexing agents
SI1565563T1 (sl) * 2002-11-22 2013-01-31 Basf Se Encimatska sinteza poliol akrilatov
CN1744918A (zh) 2002-12-31 2006-03-08 尼克塔治疗亚拉巴马公司 含有酮或相关官能团的聚合物试剂
US6806348B2 (en) * 2003-02-11 2004-10-19 Basf Corporation Process for removing and regenerating a double metal cyanide (DMC) catalyst from a polymer polyol
US6713599B1 (en) * 2003-03-31 2004-03-30 Basf Corporation Formation of polymer polyols with a narrow polydispersity using double metal cyanide (DMC) catalysts
US6884826B2 (en) 2003-06-09 2005-04-26 Bayer Antwerp, N.V. Process for preparing double metal cyanide catalyzed polyols
US20050014979A1 (en) * 2003-07-08 2005-01-20 Eleveld Michiel Barend Preparation of an alkoxylate composition using a double metal cyanide catalyst
DE10348420A1 (de) 2003-10-14 2005-05-25 Basf Ag C10-Alkanolalkoxylat-Gemische und ihre Verwendung - Neue schaumarme Netzer
US20050101477A1 (en) * 2003-11-07 2005-05-12 George Combs Unsaturated tertiary alcohols as ligands for active dmc catalysts
WO2005116102A1 (ja) * 2004-05-31 2005-12-08 Asahi Glass Company, Limited ポリウレタンエラストマーおよびその製造方法
US20060058182A1 (en) * 2004-09-13 2006-03-16 Combs George G Processes for the preparation of double metal cyanide (DMC) catalysts
WO2006047432A1 (en) * 2004-10-25 2006-05-04 Dow Global Technologies, Inc. Polyurethane carpet backings made using hydroxymethylated polyester polyols
US7928161B2 (en) * 2004-10-25 2011-04-19 Dow Global Technologies Llc Aqueous polyurethane dispersions made from hydroxymethyl containing polyester polyols derived from fatty acids
RU2412954C2 (ru) * 2004-10-25 2011-02-27 Дау Глобал Текнолоджиз Инк. Полимерные полиолы и полимерные дисперсии, полученные из гидроксилсодержащих материалов на основе растительных масел
RU2417235C2 (ru) * 2004-10-25 2011-04-27 Дау Глобал Текнолоджиз Инк. Пенополиуретаны, полученные из гидроксиметилсодержащих алкиловых эфиров жирных кислот
MY147769A (en) * 2004-10-25 2013-01-31 Dow Global Technologies Inc Prepolymers made from hydroxymethyl-containing polyester polyols derived from fatty acids
DE102005012794A1 (de) 2005-03-19 2006-09-21 Bayer Materialscience Ag Poly(etherester)polyole und Verfahren zu ihrer Herstellung
US7495063B2 (en) * 2006-02-03 2009-02-24 Dow Global Technologies Inc. Reduced oligomer concentration in high purity polyalkylene glycols
JP2007284586A (ja) * 2006-04-18 2007-11-01 Asahi Glass Co Ltd ポリエーテルモノオールの製造方法
US20080132729A1 (en) * 2006-12-01 2008-06-05 Mcdaniel Kenneth G Continuous process for the production of ethoxylates
CN101578130A (zh) * 2007-01-11 2009-11-11 陶氏环球技术公司 烷氧基化物混合物表面活性剂
US7834082B2 (en) * 2007-01-17 2010-11-16 Bayer Materialscience Llc Polyether-polysiloxane polyols
US7473677B2 (en) * 2007-04-16 2009-01-06 Bayer Materialscience Llc High productivity process for alkylphenol ethoxylates
US20080255378A1 (en) * 2007-04-16 2008-10-16 Bayer Materialscience Llc High productivity process for non-phenolic ethoxylates
BRPI0909922A2 (pt) * 2008-06-18 2019-03-06 Dow Global Technologies Inc método para remover triglicerídeos reticulados a partir de uma espuma e uso de um surfactante não-iônico
CN102257111B (zh) 2008-12-25 2014-06-11 陶氏环球技术有限责任公司 具有宽pH稳定性的表面活性剂组合物
WO2011034878A2 (en) * 2009-09-15 2011-03-24 Union Carbide Chemicals & Plastics Technology Llc Silicone replacements for personal care compositions
SG170691A1 (en) 2009-10-14 2011-05-30 Rohm & Haas Elect Mat Method of cleaning and micro-etching semiconductor wafers
US20110151671A1 (en) * 2009-12-17 2011-06-23 Rohm And Haas Electronic Materials Llc method of texturing semiconductor substrates
EP2236493A1 (en) 2010-01-27 2010-10-06 Shell Internationale Research Maatschappij B.V. Preparation of alkoxysulfates
US20110319669A1 (en) 2010-06-29 2011-12-29 Wanglin Yu Branched secondary alcohol alkoxylate surfactants and process to make them
WO2012000189A1 (en) 2010-06-30 2012-01-05 Dow Global Technologies Llc Branched secondary alcohol alkoxylate surfactants for textile processing
JP2014506238A (ja) * 2010-11-23 2014-03-13 ダウ グローバル テクノロジーズ エルエルシー 分岐鎖第二級アルコールアルコキシレート界面活性剤及びその製造方法
RU2013143147A (ru) * 2011-02-24 2015-04-10 Шелл Интернэшнл Рисерч Маатсхаппий Б.В. Способ и реакторная система для производства полиэфирполиолов
JP6208655B2 (ja) * 2011-04-04 2017-10-04 ヘンケル・アクチェンゲゼルシャフト・ウント・コムパニー・コマンディットゲゼルシャフト・アウフ・アクチェンHenkel AG & Co. KGaA エポキシドを重合するためおよびエポキシドと二酸化炭素を共重合するための触媒
WO2013095865A2 (en) * 2011-11-22 2013-06-27 Seeo, Inc Synthesis of high molecular weight peo using non-metal initiators
EP2861065B1 (en) 2012-06-18 2017-03-15 Basf Se Agroformulations containing a lactone based alkoxylate
FR3073517A1 (fr) 2017-11-10 2019-05-17 Arkema France Sulfates d'alcools secondaires alcoxyles
FR3073521A1 (fr) 2017-11-10 2019-05-17 Arkema France Ester de phosphate d'alcool secondaire
FR3073519A1 (fr) * 2017-11-10 2019-05-17 Arkema France Alcool secondaire alcoxyle
EP3927791A1 (en) 2019-02-19 2021-12-29 Dow Global Technologies LLC Enhanced crude oil recovery from subterranean crude oil-bearing sandstone reservoirs
FR3102177B1 (fr) 2019-10-18 2023-05-19 Arkema France Alcools alcoxylés et coiffés
AU2021206535A1 (en) 2020-01-09 2022-09-01 Basf Se Method for flotation of a phosphate-containing ore
FR3111901B1 (fr) 2020-06-30 2023-02-17 Arkema France PROCÉdÉ D’ALCOXYLATION AMÉLIORÉ
WO2023114343A1 (en) 2021-12-16 2023-06-22 Dow Global Technologies Llc Novel nonionic surfactants and processes to make them

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3278458A (en) * 1963-02-14 1966-10-11 Gen Tire & Rubber Co Method of making a polyether using a double metal cyanide complex compound
GB1063525A (en) 1963-02-14 1967-03-30 Gen Tire & Rubber Co Organic cyclic oxide polymers, their preparation and tires prepared therefrom
US3689532A (en) 1969-10-14 1972-09-05 Rohm & Haas Process for polyoxyalkylation
JPS5230489B2 (es) 1974-06-08 1977-08-09
DE3142041C2 (de) * 1981-10-23 1983-09-15 Th. Goldschmidt Ag, 4300 Essen Verfahren zur Herstellung von Polyoxyalkylenethern
JPH0710801B2 (ja) 1987-05-14 1995-02-08 三洋化成工業株式会社 (メタ)アクリル酸エステルの製造法
US4877906A (en) 1988-11-25 1989-10-31 Arco Chemical Technology, Inc. Purification of polyols prepared using double metal cyanide complex catalysts
US4985491A (en) * 1989-10-05 1991-01-15 Olin Corporation Polyurethane sealants made using high molecular weight polyols prepared with double metal cyanide catalysts
JP2999789B2 (ja) 1990-02-23 2000-01-17 旭硝子株式会社 ポリエーテル類の製造方法
US5144093A (en) * 1991-04-29 1992-09-01 Olin Corporation Process for purifying and end-capping polyols made using double metal cyanide catalysts
JPH08208426A (ja) 1995-02-03 1996-08-13 Nippon Oil & Fats Co Ltd 化粧品基材
US5563221A (en) 1995-06-21 1996-10-08 Arco Chemical Technology, L.P. Process for making ethylene oxide-capped polyols from double metal cyanide-catalyzed polyols
US5679764A (en) 1995-11-06 1997-10-21 Arco Chemical Technology, L.P. Process of oxyalkylation employing solid, heterogeneous MgO catalyst
US5856369A (en) 1996-07-30 1999-01-05 Osi Specialties, Inc. Polyethers and polysiloxane copolymers manufactured with double metal cyanide catalysts
JP3244632B2 (ja) 1996-09-03 2002-01-07 矢崎総業株式会社 多段コネクタ
US5714428A (en) * 1996-10-16 1998-02-03 Arco Chemical Technology, L.P. Double metal cyanide catalysts containing functionalized polymers
CA2294359C (en) * 1997-08-25 2009-11-24 Arco Chemical Technology, L.P. Preparation of functionalised polyethers

Also Published As

Publication number Publication date
EP1200506A1 (en) 2002-05-02
DE60027302T2 (de) 2007-01-18
KR20020019949A (ko) 2002-03-13
BR0013193A (pt) 2002-07-02
ES2257302T3 (es) 2006-08-01
JP2003504468A (ja) 2003-02-04
ATE323119T1 (de) 2006-04-15
CN1205250C (zh) 2005-06-08
AR025544A1 (es) 2002-12-04
AU5923400A (en) 2001-01-30
MXPA02000310A (es) 2002-06-21
US6429342B1 (en) 2002-08-06
DE60027302D1 (de) 2006-05-24
WO2001004183A1 (en) 2001-01-18
EP1200506B1 (en) 2006-04-12
CN1360607A (zh) 2002-07-24
CA2378466A1 (en) 2001-01-18

Similar Documents

Publication Publication Date Title
CO5160377A1 (es) Polimerizacion de oxido de etileno utilizando catalizadores de cianuro de metal
CO5160376A1 (es) Polimerizacionde oxidos de alquileno usando catalizadores de cianuro de metal y compuestos iniciadores insaturados
AR006694A1 (es) Catalizador de cianuro de dos metales solido util para polimerizacion de epoxido, metodos para preparar tal catalizador y proceso para polimerizar un epoxido usando ese catalizador
DE69508009T2 (de) Hochwirksame Doppelmetallcyanidkatalysatoren
ES2172356T3 (es) Metodo para la preparacion de citalopram.
BR9806894A (pt) Processo para a polimerização de uma oficina e composto
AR026138A1 (es) Una composicion apropiada para secuestrante oxigeno y metodo para utilizar la misma, metodo para secuestrante oxigeno mediante dicha composicion y unarticulo de empaque que comprende dicha composicion.
BR0111589A (pt) Sólido catalisador para polimerização de olefina, sólido catalisador pré-polimerizado, uso de um sólido catalisador, e, processo para preparar poliolefinas
PT1206498E (pt) Processo para preparacao de polieterpoliois
ES2025619T3 (es) Procedimiento para preparar un polimero de estereobloques de 1-olefina.
ES2165773B1 (es) Proceso para producir oxido de propileno.
ES2145452T3 (es) Metodo para preparar ureas ciclicas n,n'-disustituidas.
ATE517142T1 (de) Polyetheralkohole
DE602005002950D1 (de) Verfahren zur herstellung von polyetherpolyolen
AR024684A1 (es) Metodo para fraccionar poli(oxido de etileno) formado usando un catalizador de cianuro metalico
ATE411351T1 (de) Herstellung von polyetheralkoholen unter verwendung der dmc-katalyse
BR0302487A (pt) Catalisadores de cianeto metálico duplo para a preparação de polieterpolióis
PT1091970E (pt) Processo para a preparacao de aloina por extraccao
ES2090841T3 (es) Procedimiento para preparar un catalizador metalico soportado y catalizador obtenido por medio de tal procedimiento.
PA8519801A1 (es) Nuevo procedimiento para la preparacion de pirazolopirimidinonas
EP0227604A3 (en) Use of oligopeptides in the treatment of viral infections
DE50006076D1 (de) Verfahren zur herstellung von polyetherpolyolen
BR0009878A (pt) Processo para preparação de um catalisador de polimerização de olefina e composição de catalisador suportado
ES2096380T3 (es) Polimeros de acrilonitrilo modificados, procedimiento para su preparacion asi como su utilizacion.
ES2188545T3 (es) Polimeros que contienen aminoacidos basicos alcoxilados, concensados, y procedimiento para su obtencion.