Basf Aktiengesellschaft

Peter Barghoorn

Norbert Niessner

Peter Ittemann

Graham E McKee

Graham Edmund Mc Kee

Heiko Maas

Michael Fischer

Sven Grabowski

Norbert G&uuml;ntherberg

Bernhard Czauderna

Guiscard Gl&uuml;ck

Gerd Ehrmann

Maximilian Bendix

David Christie

Andreas Kleinke

Michael Breulmann

J&uuml;rgen Hofmann

Falko Ramsteiner

Rainer Nachtrab

Rainer Klostermann

Hartmut Heinen

Volker Sch&auml;dler

Alexander Ludwig

Heiner Görrissen

The invention relates to the use of phyllosilicates for improving the chemicals resistance, reducing the swelling, and improving the stress-cracking resistance of styrene copolymers, and to corresponding styrene copolymers, and to a process for their preparation.

Styrene copolymers with improved resistance to chemicals

Thermoplastic molding material exhibiting a high puncturing resistance and a good antistatic behavior

Preparation of microsuspension polymers useful as coating materials

Impact modifiers prepared from (partially) hydrogenated butadiene-containing dispersions

The invention relates to a process for the drying of coagulated water-containing rubber particles. These are treated with an aqueous solution of any desired substances in monodisperse solution in water in such a way that, at least for some period, the surface of the rubber particles is completely covered by the aqueous solution. It is preferable to use an aqueous solution of substances selected from the group consisting of salts, alcohols, acids and sugars. This method can reduce the internal water content between the particles resulting from coagulation, without major usage of energy or time.

Drying of coagulated water-containing rubber particles

Preparation of thermoplastic molding compositions

Shear forces are used for essentially salt-free coagulation of plastics dispersions or rubber dispersions. For this, method of use is made of an apparatus with at least one shearing module which has a stator and a rotor arranged within the stator, where the surfaces facing toward one another in the stator and in the rotor are in each case smooth, or at least the rotor exhibits a structure formed on its surface and facing from this in the direction of the stator, and between the stator and the rotor there is a gap of predetermined gap width. The process is carried out by passing the dispersion to be coagulated through the gap between stator and rotor and precipitating the dispersion by rotation of the rotor with predetermined shear rate and shear deformation.

Method for coagulating plastics dispersions using a device with shearing elements

Growing community of inventors

Kallstadt, Germany

Peter Barghoorn