Basf Aktiengesellschaft

Basf Corporation

Basf Se Corporation

Oxeno Olefinchemie Gmbh

Georg Heinrich Grosch

Kathrin Harre

Reinhard Lorenz

Norbert Rieber

Thomas Ostrowski

Dieter Junge

Stephan Bauer

Eva Baum

Ulrich M&uuml;ller

Edward Bohres

Andreas Walch

Wolfgang Harder

Harald Larbig

Edward Michael Dexheimer

Michael Schulz

Michael Stoesser

J&uuml;rgen Winkler

J&ouml;rg Erbes

Kai-Uwe Baldenius

Eugen Gehrer

Christian Wulff

Dirk Franke

Inge Rotermund

Wilfried Sager

Manfred Munzinger

Michael St&ouml;sser

Michael Stösser

Gerd H&ouml;ppner

Peter De Vocht

Joaquim Henrique Teles

Ulrich Mueller

Jochem Henkelmann

Peter Neumann

Wolfgang Siegel

Michael Hesse

Gerd Kaibel

Peter Bassler

Andreas Kramer

Peter Zehner

Martin Fischer

Achim Stammer

Karsten Eller

Marc Walter

Bernd Stein

Michael Henningsen

Arend Jouke Kingma

Matthias Zipplies

Arnd B&ouml;ttcher

Michael Baier

Franz Josef Brocker

Ulrich Treuling

Regina Vogelsang

Raimund Ruppel

Thomas Narbeshuber

Ulrich Annen

Anne Wenzel

Werner Hinz

Werner Bochnitschek

Stefan Dinsch

Markus Klumpe

Jörg Erbes

Christian Lockemann

Helmut Kronemayer

Regina Pretzsch

Stefan Quaiser

Gerlinde Tischer

Ulrich Kammel

Michael Pcolinski

Gerd Hoeppner

Gert Treiber

Michael Trefzer

Tim Balensiefer

Klaus Peter Gumbel

Alexey Shilkin

J&ouml;rn M&uuml;ller

Dieter St&uuml;tzer

Dirk Leys

Els Paredis

Gerd Höppner

Daniella Geelen

Jürgen Winkler

Thomas Maidhof

Jeffery T Miller

Richard B Prager

Harald Wurz

Process for preparing divinyl ethers by reacting compounds having two hydroxyl groups (hereinafter referred to as diols) with acetylene, wherein

Process for preparing divinyl ethers

A process for the preparation of polyether alcohols by reacting at least one alkylene oxide with at least one unsaturated starter having at least one active hydrogen atom per molecule under basic catalysis,

Process for the preparation of polyether alcohols from unsaturated starters having active hydrogen atoms

The present invention relates to polyethers which are obtainable from 1 -butene oxide and an alcohol using a double metal cyanide compound as a catalyst and have a content of unsaturated components of 6 mol% or more, to a process for preparing such a polyether and also to the use of a polyether according to the invention as a carrier oil or in a carrier oil formulation, in particular in additive packages for gasoline fuels, and furthermore also to carrier oil formulations and also to fuels comprising a polyether according to the invention.

Polyethers and their use as carrier oils

The present invention relates to a process for preparing at least one alkoxylate, which comprises bringing at least one alkylene oxide selected from the group consisting of ethylene oxide, propylene oxide, butylene oxide, pentylene oxide and decene oxide into contact with at least one starter compound in the presence of at least one double metal cyanide compound, with the reaction being carried out at a temperature of from 130&#xb0; C. to 155&#xb0; C., to the alkoxylates, in particular ethoxylates, themselves and to the use of such ethoxylates as emulsifier, foam regulator or as wetting agents for hard surfaces.

Method for producing alkanol alkoxylates at optimal reaction temperatures

The present invention relates to a process for reacting epoxides with an initiator compound in the presence of a double metal cyanide compound as a catalyst, said process having a shortened induction period, and the double metal cyanide compound being activated by adding the epoxide to a mixture of double metal cyanide compound and initiator compound at an internal reactor pressure of less than 1 bar, and also to the polyethers themselves obtainable by such a process.

Method for activating double metallocyanide-compounds

The present invention relates to a process for the preparation of at least one alkoxylate comprising the bringing into contact of an alkylene oxide mixture at least comprising ethylene oxide with at least one starter compound in the presence of at least one double-metal cyanide compound, where, during the induction phase, the sum of inert gas partial pressure and ethylene oxide partial pressure is 1.5 bar to 6.0 bar, to the alkoxylates obtainable by such a process, and to the use of such alkoxylates as emulsifier, foam regulator or as wetting agent for hard surfaces.

Method for producing alkoxylated products at optimized reaction pressures

Polyetherpolyols are prepared by reacting diols or polyols with ethylene oxide, propylene oxide, butylene oxide or a mixture thereof in the presence of a multimetal cyanide complex catalyst by a process which is carried out in a vertical, highly cylindrical reactor having a central stirrer and having heat exchanger plates through which a heat-exchange medium flows and which are arranged essentially in the longitudinal direction of the reactor, at an angle &#x3b1; of from 0 to 70&#xb0; in the direction of rotation of the stirrer relative to the reactor radius.

Preparation of polyetherpolyols in the presence of a multimetal cyanide complex catalyst

A process for preparing polyether polyols includes a precipitation step, a recrystallization step, and a reaction step. In the precipitation step, a multimetal cyanide compound is precipitated by reaction of a metal salt with a cyanometalate compound. In the recrystallization step, the multimetal cyanide compound precipitated above is recrystallized by adding further metal salt and/or further cyanometalate compound. The recrystallization forms a multimetal cyanide catalyst compound. In the reaction step, an initiator and one or more alkylene oxide are reacted in the presence of the multimetal cyanide catalyst compound.

Process for preparing polyether polyols

In a process for producing polyurethanes by reacting at least one polyisocyanate with at least one compound containing at least two hydrogen atoms which are reactive toward isocyanate groups, the compound having at least two active hydrogen atoms which is used is at least one polyether alcohol prepared by addition of alkylene oxides onto H-functional initiator substances by means of multimetal cyanide catalysis and the reaction is carried out in the presence of at least one metal salt.

Method for the production of polyurethanes

Glyceric acid compounds of the formula (I)RRC(OH)&#x2014;CR(OH)&#x2014;COOX&#x2003;&#x2003;(I)where R, Rand Rare independently hydrogen, C-alkyl, C-aryl, C-alkaryl or C-aralkyl andX is hydrogen, an alkali metal, an alkaline earth metal/2 or NH,are prepared by saponification of glycidic acid compounds of the formula (II)where Y is NHor ORin which Ris C-alkyl or C-aralkyl,with ring-opening addition of water onto the epoxide ring. Preferably, Y is NHand the glycidamide of the formula (II) which is used is prepared by reacting acrylonitriles of the formula (III)RRC&#x2550;CRCN&#x2003;&#x2003;(III)with hydrogen peroxide.

Method for the production of glyceric acid

In multimetal cyanide complexes, more than 30% by weight of the primary particles have a platelet-like habit, i.e. the length and width of the primary particles is at least three times the thickness of the particles.

Multimetal cyanide compounds, their preparation and their use

Suspension of multimetal cyanide compounds, their preparation and their use

Multimetal cyanide compounds

A method of forming a polyethercarbonate polyol using a multimetal cyanide compound is disclosed. The method includes providing a multimetal cyanide compound having a crystalline structure and a content of platelet-shaped particles of at least 30% by weight, based on the weight of the multimetal cyanide compound and further including at least two of the following components: an organic complexing agent, water, a polyether, and a surface-active substance. Then an alcohol initiator is reacted with at least one alkylene oxide and carbon dioxide under a positive pressure in the presence of the multimetal cyanide compound, thereby forming the polyethercarbonate polyol.

Process for the copolymerization of alkylene oxides and carbon dioxide using suspensions of multi-metal cyanide compounds

Polyester-polyether block copolymers can be prepared by catalytic addition of alkylene oxides onto H-functional initiator substances, using polyester alcohols as H-functional initiator substances and multimetal cyanide compounds as catalysts.

Polyester-polyether block copolymers

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Bad Dürkheim, Germany

Georg Heinrich Grosch