Styrolution Gmbh

Basf Se Corporation

Styrolution Europe Gmbh

Ineos Styrolution Group Gmbh

Ineos Styrolution Europe Gmbh

Matthias Müller

Gerhard Wagenblast

Klaus Hahn

Norbert Niessner

Konrad Knoll

Robert Send

Andreas Ansmann

Gerardus De Keyzer

Daniel Wagner

Sorin Ivanovici

Helmut Steininger

Peter Gutmann

Peter Deglmann

Gerrit A Luinstra

Piyada Charoensirisomboon

Norbert Güntherberg

Jens Assmann

Dirk Meckelnburg

Michel Pepers

Martin Könemann

Elmar Mailahn

Ludger Leber

Sabine Fuchs

Roland Helmut Krämer

Achim Datko

Michael Schuster

Geert Verlinden

Hartmut Denecke

Ralf Engelhardt

Christof Mehler

Sameer Nalawade

Leonie Felicitas Braun

Florian Becker

Christian Lemaire

Florian Greger

Nortbert Güntherberg

Andreas Kleinke

Günter Kehr

Manfred DÖRING

Philipp BÖCKMANN

Gerrit Luinstra

Michael Cisielski

Henning-Peter Gehrken

Rolf Hartmut Fischer

The invention relates to a method for producing thermoplastic molding compounds, comprising: A) 40 to 99 wt % of at least one thermoplastic polymer, B) 1 to 60 wt % of a flame-proofing agent component containing an expandable graphite, and C) 0 to 60 wt % of further additives, by melt-mixing components A), B) and C) in a screw-type extruder, wherein the screw-type extruder, along the feed direction, comprises, in the following order, at least one dosing zone, a plastifying zone, a homogenizing zone, a second dosing zone, and a discharge zone, in that the dosing takes place into the screw-type extruder having the length L, wherein the length L is defined as the section starting with the first dosing unit for adding components A, B and/or C and ending, in the feed direction, at the discharge opening, a melt is generated after adding components A, B and C in the range of 0 liter to 0.15 liter in a first method step in the presence of component B1), and in a second method step, after the addition of component B1) in the range of 0.5 liter to 0.95 liter, component B1) is mixed into said melt, wherein said method offers technical advantages.

Method for producing flame-proofed thermoplastic molding compounds

Styrene butadiene block copolymer mixtures for shrink-wrap films

The present invention relates to thermoplastic molding compositions having a mixture of (a) from 10 to 50% by weight of a methyl methacrylate polymer as component (A), from 20 to 60% by weight of a copolymer as component (B), and from 20 to 70% by weight of a graft copolymer as component (C). Component (C) is obtainable from components (c1) a core, (c2) a first graft shell, and (c3) a second graft shell. The second graft shell (c3) is obtainable via polymerization of a C-C-alkyl ester of methacrylic acid as component (c31) and a further vinylaromatic monomer as component (c32). Graft copolymer (C) is produced via emulsion polymerization and is isolated from the reaction mixture by precipitation resulting from shear. Also disclosed are processes for producing the molding compositions, the use of the molding compositions, and moldings obtainable from the molding compositions.

Thermoplastic molding compositions with improved optical properties

A thermoplastic copolymer prepared from acrylonitrile and para-alpha-dimethylstyrene via bulk or solution polymerization has an improved heat distortion temperature and can be used together with graft copolymers and further components for the preparation of thermoplastic moldings.

Copolymers of para-alpha dimethylstyrene and thermoplastic compositions

Growing community of inventors

Pfungstadt, Germany

Matthias Müller