Evonik Operations Gmbh

Huels Aktiengesellschaft

Innovationlab Gmbh

Evonik Degussa Gmbh

Michael Korell

Christian Meier

Manfred Kaufhold

Ulrich Sigmar Schubert

Wolfgang Kleemiss

Guenther Koehler

Peter Denkinger

Günter Schmitt

Udo Jegelka

Andreas Wild

Thorsten Brand

Andreas Berlineanu

Niko Haberkorn

Norbert Richter

Jürgen Hellwig

Thomas Schmied

Christine Miess

Michael Flittner

Malin Kummer

Simon Münch

Alexandra Lex-Balducci

Johannes Brendel

Christine Körner

Christine Beierlein

Jörn Klaus Erich Wolf

André Hennig

Vadym Bakumov

Michael Oldenkott

Jürgen Luh

Thomas Grünfelder

Martin Haneke

Jürgen Pospiech

A process can be used to produce a charge storage unit, especially a secondary battery, the electrodes of which contain an organic redox-active polymer, and which includes a polymeric solid electrolyte. The solid electrolyte is obtained by polymerizing from mixtures of acrylates with methacrylates in the presence of at least one ionic liquid, which imparts advantageous properties to the charge storage unit.

Solid electrolyte for organic batteries

The present invention relates to a process for oxidizing secondary amino groups to the corresponding radical nitroxyl groups within a polymer comprising, for example, 2,2,6,6-tetramethylpiperidinyl units. The process assures a particularly high degree of oxidation.

Method for the improved oxidation of secondary amine groups

The present invention relates to a process for polymerization, wherein the monomers are used in the form of solid particles in an aqueous phase. The polymers obtained thereby can be oxidized further to polymers which can be used as electrical charge storage means, especially secondary batteries.

Method for producing an electrode material

Process for preparing hydroxybenzoic esters of oxo alcohols

Cyclopropyl alkyl ketones are separated from 3-acyltetrahydrofuran-2-ones by adding an alcohol, water or a water/alcohol mixture to a reaction product containing C.sub.1-4 -alkyl cyclopropyl ketone and 4,5-dihydro-2-alkylfuran by-product and an acid catalyst and reacting the by-product with the added alcohol, water of water/alcohol mixture before, during or after distilling said reaction product; and effectively separating C.sub.1 -.sub.4 -alkyl cyclopropyl ketone from reaction by-products. In the preparation of cyclopropyl alkyl ketones from 3-acyltetrahydrofuran-2-ones very reactive 4,5-dihydro-2-alkylfurans are also produced. By reacting such compounds with nucleophilic compounds, such as alcohols or water, before, during or after distillation of the reaction products, it is possible reliably to separate off the 4,5-dihydro-2-alkylfurans as high-boiling addition compounds. The offgas which is produced in the production process for cyclopropyl alkyl ketones can be simply and reliably purified by reactive washing. The byproducts, which are difficult to handle for a production process, can thus be reliably eliminated.

Process for the preparation of cyclopropyl alkyl ketones

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Bochum, Germany

Michael Korell