Patents by Inventor Natalino D. Fanti

Natalino D. Fanti 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 preparing tetrafluoroethylene copolymers with other perfluorinated monomers
    Patent number: 5608020
    Abstract: The invention relates to a process for obtaining copolymers of tetrafluoroethylene with one or more perfluorinated monomers having ethylenic unsaturation, said copolymers having only carboxylic or carboxylate groups as unstable end groups, by polymerization in aqueous emulsion in the presence of a dispersing agent. The process is characterized in that CHF.sub.2 --CH.sub.3 is used as chain transfer agent, and an inorganic peroxidic compound is used as initiator.The carboxylic or carboxylate groups are successively transformed into stable groups of the --CF.sub.2 H type by known stabilizing treatments.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: March 4, 1997
    Assignee: Ausimont S.p.A.
    Inventors: Pasqua Colaianna, Julio A. Abusleme, Natalino D. Fanti