Patents by Inventor Thomas F. Veerkamp

Thomas F. Veerkamp 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 producing alkyl methacrylates
    Patent number: 4529816
    Abstract: In the process for making alkyl methacrylates from acetone cyanohydrin and H.sub.2 SO.sub.4, it has been found that alkyl 2-hydroxy-2-methyl propionate made during the process can be collected and returned to the process sequence just prior to the esterification step where it can be dehydrated to alkyl methacrylate.
    Type: Grant
    Filed: February 13, 1984
    Date of Patent: July 16, 1985
    Assignee: E. I. Du Pont De Nemours and Company
    Inventors: Raymond L. DeColibus, Jan J. van Heiningen, Thomas F. Veerkamp