Patents by Inventor Robert Anthony John Priston

Robert Anthony John Priston 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).

  • Synthetic wax for food applications
    Patent number: 5904834
    Abstract: The present invention relates to the use of wax for food applications, which wax has a congealing point of more than 65.degree. C. and a Saybolt color of more than +25, which wax is obtainable by subjecting a wax prepared in a Fischer-Tropsch synthesis process to a hydrogenation treatment to prepare a hydrogenated wax containing less than 1.5% by weight of oxygenates, fractionating the hydrogenated wax to obtain a hydrogenated wax fraction having a desired congealing point, and subjecting the hydrogenated wax fraction to a hydrofinishing treatment. The present invention further relates a process for the preparation of a wax which comprises subjecting a wax prepared in a Fischer-Tropsch synthesis process to a hydrogenation treatment to prepare a hydrogenated wax containing less than 1.5% by weight of oxygenates, fractionating the hydrogenated wax to obtain a hydrogenated wax fraction having a desired congealing point, and subjecting the hydrogenated wax fraction to a hydrofinishing treatment.
    Type: Grant
    Filed: August 1, 1997
    Date of Patent: May 18, 1999
    Assignee: Shell Research Limited
    Inventors: Joachim Ansorge, Arend Hoek, Willem Pieter Leenhouts, Robert Anthony John Priston