Patents by Inventor Martin Döbler

Martin Döbler 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).

  • Polycarbonate molding compounds with good demolding properties and molded bodied and semifinished products produced from the same
    Patent number: 6706797
    Abstract: A thermoplastic molding composition comprising polycarbonate resin having improved mold release properties is disclosed the composition contain polycarbonate resin and 0.005 to 5.0% relative to the weight of the composition of at least one hydrocarbon in the form of C15-600-methyl-branched alkane. The hydrocarbon is characterized in that the weight proportion of its branches is 5 to 30 percent relative to the weight of carbons in the alkane chain.
    Type: Grant
    Filed: January 9, 2002
    Date of Patent: March 16, 2004
    Assignee: Bayer Aktiengesellschaft
    Inventors: Wolfgang Ebert, Ralf Kaufmann, Christoph Schwemler, Wilfried Haese, Peter Fischer, Martin Döbler, Joachim Genz
  • Molding materials
    Patent number: 6680350
    Abstract: A molding composition suitable for the preparation of glazing is disclosed. The composition contains a transparent thermoplastic polymer and a phthalocyanine or naphthalocyanine. Also disclosed is a method for preparing the composition.
    Type: Grant
    Filed: March 1, 2002
    Date of Patent: January 20, 2004
    Assignee: Bayer Aktiengesellschaft
    Inventor: Martin Döbler
  • Plastic molding materials which can be detected by X-ray contrast
    Patent number: 6509406
    Abstract: The invention provides X-ray contrastable plastics materials with low-molecular weight iodine compounds, a process for preparing X-ray contrastable plastics materials with low molecular weight iodine compounds, the use of low molecular weight iodine compounds to improve the X-ray contrast in transparent plastics materials and toys with improved X-ray contrast containing low molecular weight iodine compounds.
    Type: Grant
    Filed: June 1, 2001
    Date of Patent: January 21, 2003
    Assignee: Bayer Aktiengesellschaft
    Inventors: Axel Brenner, Martin Döbler, Michael Prein
  • Use of oligomeric iodinated polycarbonates
    Patent number: 6348560
    Abstract: A method of using oligocarbonates having terminal groups containing iodine to prepare molded articles (e.g., toys and medical equipment) having high X-ray contrast is described. The oligocarbonates contain more thaan one diol unit, and have a weight average molecular weight (Mw) of less than 3000.
    Type: Grant
    Filed: June 13, 2001
    Date of Patent: February 19, 2002
    Assignee: Bayer Aktiengesellschaft
    Inventors: Axel Brenner, Martin Döbler, Walter Köhler, Siegfried Neumann