Patents by Inventor Jan L. Schiefler

Jan L. Schiefler 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 paint detackifying and sedimentation
    Patent number: 4992199
    Abstract: A composition for use as a paint detackifying and sedimentation agent is disclosed, which includes 60 to 80% by weight of alumina Al.sub.2 O.sub.3) in pseudoboehmite or boehmite form, either in X-ray amorphous form or with a crystallite size of 20 to 150 A. The composition of the invention may include foam inhibitors, or other conventional additives. A process for use of the composition of the invention is also disclosed in which the composition is added as a 5-30% aqueous dispersion or in dry form to the circulating water of a paint spraying booth and used in a quantity of 1 to 10% by weight, based on 1 kg of the paint to be detackified.
    Type: Grant
    Filed: May 16, 1989
    Date of Patent: February 12, 1991
    Assignee: Condea Chemie GmbH
    Inventors: Arnold Meyer, Klaus F. Noweck, Jan L. Schiefler, Anders Svensson