Patents by Inventor Franz Grüner

Franz Grüner 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).

  • Method of dyeing or printing synthetic polyamide fibre materials using reactive dyes
    Patent number: 7396370
    Abstract: A method of dyeing or printing synthetic polyamide fiber materials, wherein (a) the fiber material is dyed or printed with at least one reactive dye, and (b) the dyed or printed fiber material is subjected to after-treatment with a reducing agent, the fiber material not being treated with polycondensable or polymerizable compounds for fixing the dye on the fiber, results in dyeings and printings that are distinguished by good fastness properties.
    Type: Grant
    Filed: June 3, 2003
    Date of Patent: July 8, 2008
    Assignee: Huntsman International LLC
    Inventors: Franz Grüner, Jürgen Schmiedl, Ulrich Fembacher, Ulrich Strahm
  • Method for the trichromatic dyeing or printing of synthetic polyamide fiber materials
    Patent number: 6930179
    Abstract: Method for the trichromatic dyeing or printing of synthetic polyamide fiber material, wherein at least one red reactive dye of formula is used together with at least one of the yellow or orange reactive dyes of formulae and at least one blue reactive dye of formula in which formulae the variables are as defined in claim 1, which method is distinguished by a uniform color build-up and a very good combinability.
    Type: Grant
    Filed: May 17, 2004
    Date of Patent: August 16, 2005
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Jürgen Schmiedl, Klaus Koch, Wolfgang Mundle, Franz Grüner