Patents by Inventor Karen Raasch-Malberg

Karen Raasch-Malberg has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Stabilization of polycarbonates
    Patent number: 8748518
    Abstract: The invention relates to the use of a specific hindered amine (hindered amine light stabilizer, HALS) and a specific bismalonate UV absorber for the stabilization of polycarbonates and of polycarbonate blends, in particular of polycarbonate/acrylonitrile-butadiene-styrene (PC/ABS) blends, with respect to UV radiation.
    Type: Grant
    Filed: May 21, 2008
    Date of Patent: June 10, 2014
    Assignees: Clariant Finance (BVI) Limited, Clariant Masterbatches (Deutschland)
    Inventors: Karen Raasch-Malberg, Thomas Enge
  • Stabilization of Polycarbonates
    Publication number: 20100179257
    Abstract: The invention relates to the use of a specific hindered amine (hindered amine light stabilizer, HALS) and a specific bismalonate UV absorber for the stabilization of polycarbonates and of polycarbonate blends, in particular of polycarbonate/acrylonitrile-butadiene-styrene (PC/ABS) blends, with respect to UV radiation.
    Type: Application
    Filed: May 21, 2008
    Publication date: July 15, 2010
    Applicants: CLARIANT FINANCE (BVI) LIMITED, CLARIANT MASTERBATCHES (DEUTSCHLAND) GMBH
    Inventors: Karen Raasch-Malberg, Thomas Enge
  • Stabilization of Polycarbonates and polycarbonate Blends
    Publication number: 20100163814
    Abstract: The invention relates to the use of a specific hindered amine (hindered amine light stabilizer, HALS) and a specific benzotriazole UV absorber for the stabilization of polycarbonates and of polycarbonate blends, in particular of polycarbonate/acrylonitrile-butadiene-styrene (PC/ABS) blends, with respect to UV radiation.
    Type: Application
    Filed: May 21, 2008
    Publication date: July 1, 2010
    Applicants: CLARIANT FINANCE (BVI) LIMITED, CLARIANT MASTERBATCHES (DEUTSCHLAND) GMBH
    Inventors: Karen Raasch-Malberg, Thomas Enge