Basf Aktiengesellschaft

Basf Se Corporation

Wilfried Sager

Knut Oppenlaender

Hans-Henning Vogel

Guenther Elfers

Rolf Fikentscher

Georg Heinrich Grosch

Johannes P Dix

Edward Bohres

Michael Stoesser

Dieter Hannu Boeckh

Sophia Ebert

Christian Bittner

Marc Walter

Alwin Rehfinger

Andrea Misske

Stefan Frenzel

Klaus Barthold

Ulrich Annen

Andreas Eichhorn

Michael Stösser

Frank Mrzena

Axel Schimpf

Ralf BÖHLING

The present invention relates to a process for the alkoxylation of a first polymer comprising at least one monomer unit having NH groups and optionally NHgroups, wherein the first polymer has a molecular weight Mof at least 500 g/mol, comprising the steps of (a) reacting the first polymer with alkylene oxide in a reaction mixture comprising a solvent until the average degree of alkoxylation of each NH group and each optional NHgroup, calculated as two NH groups, is from 0.75 to 1.25; (b) adding a second polymer of formula (I), wherein R is a linear or branched alkyl group having from 1 to 20 carbon atoms, each R' is independently a linear or branched alkyl group having from 1 to 20 carbon atoms or hydrogen, each n is independently from 1 to 5 and m is from 5 to 40, to the reaction mixture of step (a); (c) at least partially removing the solvent from the reaction mixture of step (b); and (d) further reacting the reaction mixture of step (c) with alkylene oxide at a given temperature until the average degree of alkoxylation of each NH group and each optional NHgroup, calculated as two NH groups, of the first polymer is from 2 to 40. The present invention also relates to a polymer composition obtainable from that process and the use of such a polymer composition. 

Process for the alkoxylation of amino group containing polymers

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 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

Petroleum emulsion breakers based on alkoxylated polyethyleneimines are obtained by reacting polyethyleneimine with a molecular weight of 2,500-35,000 with 5-40 moles each of propylene oxide and ethylene oxide per ethyleneimine unit in the polyethyleneimine and are used for the demulsification of petroleum emulsions at from 10.degree. C. to 130.degree. C.

Petroleum emulsion breakers

Oil demulsifiers are based on an alkoxylate having a polydispersity of at least 1.7, and the alkoxylates are prepared using a metal alcoholate as a catalyst.

Oil-demulsifiers based on an alkoxylate and preparation of this

The present invention relates to the use of trialkanolamine polyethers obtained by condensation of one or more trialkanolamines in the presence of phosphorous acid and/or hypophosphorous acid as demulsifiers for oil-in-water emulsions.

Use of trialkanolamine polyethers as demulsifiers for oil-in-water

The present invention relates to methods of demulsifying employing condensates as demulsifiers for oil-in-water emulsions and prepared from

Methods of demulsifying employing condensates as demulsifiers for oil-in

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Mutterstadt, Germany

Wilfried Sager