Patents by Inventor JOSEPH P. STEHMAN

JOSEPH P. STEHMAN 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).

  • FLUORINATED ALKOXYVINYL ETHERS AND METHODS FOR PREPARING FLUORINATED ALKOXYVINYL ETHERS
    Publication number: 20230278945
    Abstract: An alkoxyvinyl ether is disclosed having the chemical structure RfC(OR)?CHRf?, wherein Rf is an at least partially fluorinated functional group having at least one carbon atom, Rf? is an at least partially fluorinated functional group having at least two carbon atoms, and R is a functional group. A method for preparing an alkoxyvinyl ether is disclosed, comprising RfCFHCFHRf?+KOH/ROH?RfC(OR)?CHRf?, wherein Rf is a perfluoro functional group, Rf? is a perfluoro functional group, and R is an alkyl functional group. Another method for preparing an alkoxyvinyl ether is disclosed, comprising RfCF?CHRf?+KOH/ROH?RfC(OR)?CHRf?, wherein Rf is a perfluoro functional group, Rf? is a perfluoro functional group, and R is an alkyl functional group.
    Type: Application
    Filed: May 12, 2023
    Publication date: September 7, 2023
    Applicant: THE CHEMOURS COMPANY FC, LLC
    Inventors: VIACHESLAV A. PETROV, MARIO JOSEPH NAPPA, ROBERT DANIEL LOUSENBERG, JOSEPH P. STEHMAN