Patents by Inventor Wolf-Karlo Aders

Wolf-Karlo Aders 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).

  • Preparation of trimethylhydroquinone
    Patent number: 4600799
    Abstract: 2,3,6-Trimethylhydroquinone is prepared by catalytic hydrogenation of 2,3,6-trimethylquinone with hydrogen in the presence of a solvent by a continuous process in which the reaction is carried out over a platinum/alumina catalyst.
    Type: Grant
    Filed: February 7, 1985
    Date of Patent: July 15, 1986
    Assignee: BASF Aktiengesellschaft
    Inventors: Franz J. Broecker, Peter Tavs, Harald Laas, Wolf-Karlo Aders
  • Preparation of acetals of malonaldehyde
    Patent number: 4410733
    Abstract: Acetals of malonaldehyde are prepared by reacting an orthoester with a vinyl ether in the presence of a catalytic amount of FeCl.sub.3. The malonaldehyde acetals obtainable by the process according to the invention are valuable intermediates in the preparation of dyes, crop protection agents and drugs.
    Type: Grant
    Filed: January 6, 1982
    Date of Patent: October 18, 1983
    Assignee: BASF Aktiengesellschaft
    Inventors: Dietrich Mangold, Josef Wahl, Wolf-Karlo Aders