Basf Aktiengesellschaft

Basf Se Corporation

Joachim Seibring

Martin Weber

Peter Ittemann

Gerhard Heinz

Graham E McKee

Norbert G&uuml;ntherberg

Norbert Niessner

Hermann Gausepohl

Klemens Massonne

Norbert Guntherberg

Bernhard Rosenau

Sven Grabowski

Bernhard Czauderna

Hartmut Zeiner

Robert Weiss

Rainer Moors

Georg N Simon

Hermann Fischer

Hermann Buchert

Michael Kopietz

Rainer Neumann

J&uuml;rgen Koch

Christophe Ginss

Jens Becker

Norbert Mosbach

Hartmut Heinen

Wolfgang Stegmaier

Klaus Matthias

Christian Meyer

Manfred K&ouml;tting

Hans Joachim Reinhardt

Theodor Bruckmann

Hendrikus Bobbink

Guenther Zimmer

The invention relates to a process for pelletizing polymer melts, at above ambient pressure, in a pelletizing chamber into which a cutting apparatus has been inserted. In a first step, the pelletizing chamber is flooded with a gas which is inert toward the polymer melt and whose pressure is that at which the pelletizing process is carried out. The polymer melt is then injected into the pelletizing chamber. Finally, the gas is displaced from the pelletizing chamber via a liquid as soon as the polymer melt begins to flow through the cutting apparatus, this melt being cut into pellets.

Process for pelletizing polymer melts comprising low-boiling substances

Thermoplastic molding materials stable to thermal oxidation

Thermoplastic molding compounds

A thermoplastic molding composition having little intrinsic color is produced from a graft copolymer and a thermoplastic polymer. The graft copolymer is produced from a soft elastomeric particulate graft base obtained by polymerization of a conjugated diene alone or with a small amount of a monoethylenically unsaturated monomer, upon which is grafted a vinylaromatic monomer and acrylonitrile and optionally another monoethylenically unsaturated monomer. The thermoplastic polymer is a copolymer of a vinylaromatic monomer and acrylonitrile and optionally an additional monoethylenically unsaturated monomer. The thermoplastic molding composition has a low level of intrinsic color coupled with good mechanical properties and can be processed by, for example, extrusion, injection molding, calendaring, blow molding, compression molding, or sintering.

Low individual color thermoplastic molding material

Flame-resistant thermoplastic moulding materials with improved processing behavior

Flame-retardant thermoplastic molding compositions comprise A) at least one polyphenylene ether, and

Flame-retardant thermoplastic compositions with improved stability

Molded materials based on polycarbonates

Preparation of rubber-modified molding materials by means of groups

Particulate polymers of aromatic diols I and aromatic dihalogen compound II are prepared by

Preparation of particulate polymers

Thermoplastic molding materials which are stable at high temperatures and are based on polyaryl ether sulfones and, if required, polyether ketones have a content of alkali metal salts of not more than 100 ppm, based on total polymer.

Thermoplastic molding materials which are stable at high temperatures

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Freinsheim, Germany

Joachim Seibring