Covestro Deutschland Ag

Bayer Materialscience Ag

Ingmar Hermsdorfer

Andreas Seidel

Eckhard Wenz

Hans-Juergen Klankers

Hans-Juergen Thiem

Birgit Mannel

Hans-Jürgen Thiem

Sven Hobeika

Lars Frye

Derk Erich Wandner

Christopher Schirwitz

Hartwig Kempkes

Hans-Jürgen Klankers

Birgit Derfuss

Christopher Schwirwitz

The invention relates to compositions based on aromatic polycarbonate comprising metal oxide-coated micas as effect pigment, which do not have any significant increase in molecular weight of the polycarbonate, as can be seen from the MVR, under thermal stress. This is achieved by the addition of small amounts of an anhydride-modified &#x3b1;-olefin polymer, optionally in combination with phosphorus-containing thermal stabilizer.

Polycarbonate composition comprising pearlescent pigment and/or interference pigment

The invention relates to a method for producing compositions containing vinylaromatic copolymers which are obtained in an emulsion polymerization process and comprise production-related salt inclusions. Said compositions are characterized by an improved surface quality once the extruded polymer, before being granulated, or the granulate, after being granulated, has been moistened by bringing the polymer in contact with liquid water in a water bath, a tube system filled with water, or a dipping tank, thus making the compositions suitable for producing molded articles having a class A surface that remains flawless over time.

Method for the production of ABS compositions having an improved surface

The invention relates to a method for producing compositions containing vinyl-aromatic copolymers that are obtained in an emulsion polymerization process and comprise production-related salt inclusions. Said compositions are characterized by improved surface quality following storage in a warm-humid environment and are therefore suitable for producing molded articles having a class A surface that remains flawless over time.

Method for the production of ABS compositions having an improved surface following storage in a warm-humid environment

Described herein are polymer compositions comprising Compositions of the present invention are distinguished by an improved surface after heat-moisture storage and are suitable in particular for the production of moldings with a high gloss finish that demand a class A surface, which have optionally been subjected, in whole or in part, to a further surface treatment step involving e.g. lacquering, in-mold decoration, or metallization by vacuum deposition or galvanization.

Abs compositions with improved surface after heat-moisture storage

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Krefeld, Germany

Ingmar Hermsdorfer