Ineos Styrolution Group Gmbh

Nils Wittenberg

Wolfgang Fischer

Norbert Niessner

Gisbert Michels

Tobias Schulz

Ulrich Jansen

Shridhar Madhav

Kirit Gevaria

Stefan Kaminsky

Fabian Rueter

Lena Grassberger

Fabian RÜTER

Pratik Bhavsar

Nirmalendu Debata

The present invention relates to a process for producing a thermoplastic molding composition and articles made thereof having improved surface quality, in particular improved surface quality after exposure to warm-humid environmental conditions. The thermoplastic molding composition comprises a thermoplastic polymer A, a graft copolymer B obtained by emulsion graft polymerization and optionally a further polymer component P, as well as optional further components/additives K, wherein at least one crystallization additive C, selected from phosphate compounds having 1 to 25 phosphate units, organic acids and salts thereof, is added during or after the preparation of the graft copolymer B.

Thermoplastic molding composition and articles made thereof having improved surface quality

The invention relates to a process for producing graft copolymers based on acrylonitrile-butadiene-styrene copolymers (ABS), wherein the graft copolymers may be dewatered particularly readily after production and precipitation and have a low residual moisture content after centrifugation. The invention further relates to a process for producing thermoplastic molding materials using the thus obtained ABS graft copolymers.

Process for producing ABS graft copolymers

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Hofheim am Taunus, Germany

Nils Wittenberg