Basf Se Corporation

Basf Aktiengesellschaft

Joachim Ruch

Klaus Hahn

Markus Allmendinger

Bernhard Schmied

Jan Holoch

Franz-Josef Dietzen

Gerd Ehrmann

Konrad Knoll

Klemens Massonne

Martin Merger

Frank Hermanutz

Martin Laun

Ingo Bellin

Andreas Wuest

Jan Kurt Walter Sandler

Michael Riethues

Gerhard Turznik

Carsten Schips

Achim Datko

Andreas Wüst

Marc Bothe

Johannes David Hoecker

Moritz Ehrenstein

Paulus Schmaus

Benjamin Nehls

Heiko Hess

Marcel Brill

Michael Heeger

Andre Guerin Moreira

Helge Weiler

Jessica Rylander

Christian Rasch

Olivier Fleischel

Joerg Unold

Heiko HEß

Klaus MÜHLBACH

Horst Fischer

Volker Schädler

The invention relates to a process and an apparatus for pelletizing polymer melts comprising blowing agent in a pelletizing chamber through which a liquid flows, its pressure being above the ambient pressure. In a first step, the polymer melt is injected into the pelletizing chamber, in a second step the polymer melt is cut via a cutting apparatus into individual pellets and, in a third step, the pellets produced in the pelletizing process are discharged with the liquid from the pelletizing chamber and are then isolated from the liquid. This process also comprises at least one of the following steps:

Method and device for granulating polymer melts containing blowing agent

The invention relates to a module for absorbing energy from an impact to which the module () has been subjected, via deformation, comprising a core () made of a polymer foam with a density of at most 0.2 g/cmand with a compressive modulus of elasticity of at most 200 MPa measured to DIN EN 826, wherein the core () has an at least to some extent enclosing shell () made of a polymer material, and/or comprises an insert () made of a polymer material, where the density of the polymer material of the shell () and/or of the insert () is at most 2.0 g/cmand its tensile modulus of elasticity is at least 700 MPa, measured to DIN EN ISO 527.

Module for absorbing energy

Expandable styrene polymers (EPS) comprising, in each case based on the styrene polymer,

Flameproof expandable styrene polymers, and method for the production thereof

A process for producing polystyrene foam particles having a bulk density in the range from 40 to 400 g/l by extrusion of a polystyrene melt comprising carbon dioxide and/or water as blowing agent through a nozzle and underwater pelletization, wherein the underwater pelletization is carried out at a pressure in the range 1-30 bar.

Process for producing polystyrene foam particles having a high density

Expandable pelletized styrene polymer materials with at least bi- or multimodal molecular weight distribution, to a process for their preparation, and to use for producing moldable-foam moldings.

Expandable polystyrene granulates with a bi- or multi-modal molecular-weight distribution

A process for the preparation of expandable styrene polymers having a molecular weight Mof greater than 170,000 g/mol, which comprises conveying a blowing agent-containing styrene polymer melt having a temperature of at least 120&#xb0; C. through a die plate with holes whose diameter at the die exit is at most 1.5 mm, and subsequently granulating the extrudate, and expandable styrene polymers (EPS) having a molecular weight Mof more than 170,000 g/mol with 0.05 to 1.5% by weight of internal water.

Method for producing expandable polystyrene

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Wachenheim, Germany

Joachim Ruch