Basf Aktiengesellschaft

Richard Van Gelder

Matthias Rauls

Maria Scherer

Matthias Bratz

Günter Oetter

Rainer Berghaus

Thomas Fetzer

Thomas Greindl

Norbert Wagner

Knut Kessel

Harald Köhle

Michael Kluge

Bernhard Otto

Siegfried Bechtel

Christian Krüger

Christoph Gahn

Udo Setzer

Joachim Borgwart

The present invention relates to amphiphilic polymer compositions, to a process for their preparation and to their use for preparing aqueous active compound compositions of water-insoluble active compounds, in particular active compounds for crop protection. The amphiphilic polymer compositions can be obtained by reacting 

Amphiphilic polymer compositions and their use

In a process and an apparatus for avoiding encrustations in reactors or crystallizers ( ), such as industrial crystallizers for suspensions ( ), points of incidence ( ) for the excitation of ultrasonic oscillations by sonotrodes ( ) which are connected to electromechanical converters ( ) are provided on the walls ( ) and on the base ( ) of the crystallizer ( ). The ultrasonic frequency is generated at high-frequency generators ( ).

Reduction of encrustation of crystallization processes

A process for preparing guanidine derivatives, in particular creatine, is described and entails an O-alkylisourea salt and a primary or secondary amine being reacted in the presence of crystals of a guanidine derivative.

Process for preparing guanidine derivatives

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Speyer, Netherlands

Richard Van Gelder