Patents by Inventor Andre B. Van Aken

Andre B. Van Aken 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).

  • .beta.-(Sec-alkoxy) ethanol process
    Patent number: 4371716
    Abstract: An improved process for preparing .beta.-(sec-alkoxy) ethanol which comprises reacting an olefin with ethylene glycol in the presence of a sulfuric acid or benzenesulfonic acid catalyst and sufficient sulfolane or alkyl-substituted sulfolane solvent to provide a one phase reaction medium, extracting the reaction products with an alkane and recovering the .beta.-(sec-alkoxy) ethanol product from the alkane extract.
    Type: Grant
    Filed: July 17, 1981
    Date of Patent: February 1, 1983
    Assignee: Shell Oil Company
    Inventors: Timm E. Paxson, Leo Kim, Andre B. Van Aken