Patents by Inventor Karl H. Josten

Karl H. Josten 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).

  • Process for removing from electrocoating baths impurities which cause surface defects
    Patent number: 4956096
    Abstract: A process for removing from electrocoating baths impurities which cause surface defects.The invention relates to a process for removing from electrocoating baths impurities which cause surface defects, wherein the electrocoating paint, in addition to the purification operations which are already conventional, is filtered without pressure through an adsorbent which adsorbs hydrophobic substances having a surface tension.ltoreq.35 mN/m--preferably homopolymers or copolymers of ethylene, propylene, but-1-ene or but-2-ene, which, if appropriate, contain further nonpolar comonomers.
    Type: Grant
    Filed: July 25, 1989
    Date of Patent: September 11, 1990
    Assignee: BASF Lacke & Farben AKT
    Inventors: Klaus Arlt, Theodora Dirking, Karl H. Josten, Hans J. Streitberger