Patents by Inventor Spartaco Fontani

Spartaco Fontani 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).

  • Condensation product prepared from N,N'-ethylene-urea and formaldehyde
    Patent number: 4363906
    Abstract: There is disclosed a solid and water-insoluble condensation product of N,N'-ethyleneurea with formaldehyde, having the structure ##STR1## wherein n is an integer from 20 to 60 with a mean value of 41, and having an average number molecular weight M.sub.n ranging from 2000 to 6000. Said product, when added to a polymer in combination with an ammonium phosphate, results in the production of articles which are resistant to heat and to thermo-oxidation.
    Type: Grant
    Filed: April 2, 1981
    Date of Patent: December 14, 1982
    Assignee: Montedison S.p.A.
    Inventors: Osvaldo Cicchetti, Spartaco Fontani, Gianluigi Landoni, Renato Locatelli, Guido Bertelli, Pierpaolo Roma
  • Self-extinguishing polymeric compositions
    Patent number: 4336182
    Abstract: Thermoplastic polymers, such as polypropylene, are rendered anti-flaming and self-extinguishing by addition of ammonium or amine phosphate and a nitrogen-containing water-insoluble oligomer or polymer containing in the monomeric unit a --CO--group attached to a ##STR1## group, wherein n is 2 or 3, being part of a ring, e.g., poly(carbonylpiperazine).
    Type: Grant
    Filed: July 25, 1980
    Date of Patent: June 22, 1982
    Assignee: Montedison S.p.A.
    Inventors: Gianluigi Landoni, Spartaco Fontani, Osvaldo Cicchetti