The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 07, 2016
Filed:
Aug. 07, 2012
Ulrich Blaschke, Krefeld, DE;
Heinrich Hähnsen, Duisburg, DE;
Peter Schwarz, Krefeld, DE;
Klaus Kraner, Solingen, DE;
Hans-jürgen Thiem, Dormagen, DE;
Michael Wagner, Moers, DE;
Ulrich Blaschke, Krefeld, DE;
Heinrich Hähnsen, Duisburg, DE;
Peter Schwarz, Krefeld, DE;
Klaus Kraner, Solingen, DE;
Hans-jürgen Thiem, Dormagen, DE;
Michael Wagner, Moers, DE;
Covestro Deutschland AG, Leverkusen, DE;
Abstract
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.