Degussa Aktiengesellschaft

Evonik Degussa Gmbh

Creanova Spezialchemie Gmbh

Dugussa-huels Aktiengesellschaft

Evonik Operations Gmbh

Silvia Herda

Thomas Weihrauch

Klaus Behrendt

Rainer Gras

Frank Bauer

Werner Grenda

Marianne Omeis

Rainer Elm

Sabine Naumann

Siegfried Brandt

Andre Raukamp

Joern Volker Weiss

Rainer Lomölder

Christoph Nacke

Melanie Sajitz

The invention relates to a continuous process for producing a reactive polymer based on compounds according to the structures (A1) and/or (A2) and phenolic resin in an extruder and to the reactive polymer produced according to said process and the use thereof for producing composite materials.

Continuous process for producing a reactive polymer

The invention relates to a process for the solvent-free, continuous preparation of polyureas by reacting at least one isocyanate and/or isocyanurate having at least two NCO groups with at least one diamine and/or polyamine in an extruder, intensive kneader, intensive mixer or static mixer by thorough mixing and rapid reaction by briefly heating and subsequent cooling to isolate the end product.

Process for the solvent-free, continuous preparation of polyureas

The invention relates to a process for the preparation of polyaddition products containing uretdione groups, prepared from a polyisocyanate-uretdione having at least two free isocyanate groups, diols and, if desired, monoalcohols or monoamines, in which the polyaddition products containing uretdione groups are prepared by a solvent-free and continuous procedure which is carried out in an intensive kneading apparatus/extruder. The invention also relates to the use of polyaddition products containing uretdione groups for PUR powder coatings and for solvent-containing, one-component stoving enamels.

Process for the preparation of polyaddition products containing uretdione groups, and their use in polyurethane coating systems

Process for the continuous preparation of hydroxyalkylamides Process for the continuous preparation of hydroxyalkylamides from carboxylic esters and alkanolamines, wherein the reaction of the starting materials is carried out in an extruder or intensive mixer by intensive mixing and brief reaction with supply of heat and simultaneous removal of the alcohol formed and the final product is then isolated.

Process for the continuous preparation of hydroxyalkylamides

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Herne, Germany

Silvia Herda