Patents Assigned to Trumpler GmbH & Co. Chemische Fabrik
  • Fatliquoring agents for the flame-retardant treatment of leather
    Patent number: 7749409
    Abstract: The present invention relates to fatliquoring agents for leathers, skins or hides, which contain neutral halogen-free organic phosphorus compounds, and the use of such fatliquoring agents for the flame-retardant treatment of leather and a process for fatliquoring in the production of flame-retardant leather, skin or hides.
    Type: Grant
    Filed: October 26, 2007
    Date of Patent: July 6, 2010
    Assignees: Lanxess Deutschland GmbH, Trumpler GmbH & Co. Chemische Fabrik
    Inventors: Jan-Gerd Hansel, Otto Mauerer, David Burgess, Karl-Heinz Wolf
  • Agent and method for enzymatically tanning skins
    Patent number: 6849095
    Abstract: Described are a composition and process for the enzymatic tanning of hides utilizing one or more transglutaminases for crosslinking the collagen in the hide.
    Type: Grant
    Filed: July 3, 2001
    Date of Patent: February 1, 2005
    Assignee: Trumpler GmbH & Co. Chemische Fabrik
    Inventors: Thomas Feigel, Manfred Palissa, Ralf Pasternack, Hans-Lothar Fuchsbauer, Heinz-Peter Germann, Michael Meyer
  • Auxiliary for liming and loosening hairs of animal skins
    Patent number: 6689172
    Abstract: The invention concerns an auxiliary for liming and loosening hairs of animal skins, containing, in aqueous solution: 10 to 50 wt. % of a polysaccharide solution; 5 to 25 wt. % of a mercapto-carboxylic acid or one of its salts; and 1 to 10 wt. % of a mercapto-alcohol or one of its alkaline salts. Said auxiliary is added during liming of animal skins, to the solution generally containing alkalis, inorganic sulphides or hydrosulphides and anionic or non-ionic surfactants, for standard production of sweatbands.
    Type: Grant
    Filed: March 12, 2001
    Date of Patent: February 10, 2004
    Assignee: Trumpler GmbH & Co. Chemische Fabrik
    Inventors: Thomas Feigel, Gertrud Wick, Peter Wohlmuth, Martin Heise