Patents by Inventor Frederick G. Schappell

Frederick G. Schappell 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).

  • Bis-monoperoxyacetals and -ketals
    Patent number: 3956398
    Abstract: Bis-monoperoxyacetals and bis-monoperoxyketals having the formula ##EQU1## wherein R is selected from the group consisting of C.sub.4 -C.sub.12 tertiary alkyl and C.sub.9 -C.sub.12 tertiary aralkyl and R.sub.1 is selected from the group consisting of hydrogen and C.sub.1 -C.sub.12 alkyl, are effective crosslinking agents for polymers at relatively low cure temperatures.
    Type: Grant
    Filed: May 16, 1975
    Date of Patent: May 11, 1976
    Assignee: Hercules Incorporated
    Inventor: Frederick G. Schappell