Patents Assigned to Zschimmer & Schwarz GmbH & Co. KG Chemische Fabriken
  • Liquid and its use for the preparation of hard metals
    Patent number: 7531022
    Abstract: A liquid for the preparation of powder mixtures on the basis of hard metals, comprising water and an inhibitor, wherein the inhibitor is in the form of at least one of the following materials: polyvinyllactam or wax emulsion, or the inhibitor is in the form of at least one of the following materials: carboxylic acid, amines or their derivatives.
    Type: Grant
    Filed: October 13, 2005
    Date of Patent: May 12, 2009
    Assignee: Zschimmer & Schwarz GmbH & Co. KG Chemische Fabriken
    Inventors: Peter Quirmbach, Michael Hölzgen, Alfred Vuin
  • Process for preparing ceramic masses or workpieces
    Patent number: 6264863
    Abstract: The invention concerns binders for ceramic materials, in particular water soluble sugars and sugar alcohols.
    Type: Grant
    Filed: April 29, 1998
    Date of Patent: July 24, 2001
    Assignee: Zschimmer & Schwarz GmbH & Co. KG Chemische Fabriken
    Inventors: Sylvia Schwartz, Peter Quirmbach, Winfried Geis, Werner Weiand