Covestro Deutschland Ag

Bayer Materialscience Ag

Klaus Kraner

Thomas Eckel

Alexander Meyer

Eckhard Wenz

Ulrich Blaschke

Reiner Rudolf

Michael Wagner

Hans-Jürgen Thiem

Claus Rüdiger

Vera Taschner

Peter Schwarz

Sven Hobeika

Heinrich Hähnsen

Birte Sämisch

Thomas Höhnk

Dirk Kurzidim

Matthias Kroh

The present invention relates to a polymer composition containing polycarbonate with a weight-average molecular weight Mw of from 24,000 to 33,000 and 5.0 wt. % to 20.0 wt. % (based on the total amount of the composition) of glass hollow spheres with an alkalinity of less than 1.0 meq/g. The present invention furthermore provides coextruded sheets in which the coextruded layer contains this polymer composition, and shaped articles produced therefrom, in particular containers and pieces of luggage, very particularly suitcases. Sheets which are obtainable with the polymer composition according to the invention have a high mechanical stability, a high scratch resistance, pleasant haptic properties and an excellent homogeneous external visual impression. The present invention furthermore relates to a process for the preparation of these polymer compositions and a process for production of the sheets according to the invention.

Polymer composition having a filler content and coextruded sheet obtainable therefrom

The present invention concerns a process for producing a container having at least one layer and a top layer, wherein the layer contains polycarbonate and the top layer contains polyarylethersulfone or polyarylsulfone, characterised in that a) polycarbonate is melted on an extruder at 230-320&#xb0; C., b) polyarylethersulfone or polyarylsulfone is melted on a further extruder, c) the melts obtained from steps a) and b) are shaped by coextrusion into a tube, which is then enclosed in a mould, d) the extrudate is inflated inside the mould and pressed against the wall of the mould, forming the shape of the container, and e) the container obtained from d) is trimmed and cooled, such containers and the use of the containers as bottles or medical devices.

Method for the production of multilayer containers

Growing community of inventors

Solingen, Germany

Klaus Kraner