Patents by Inventor Cirillo: Gianna

Cirillo: Gianna 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).

  • Co-vulcanizable compositions of fluoroelastomers having improved chemical stability
    Patent number: 4831083
    Abstract: Co-vulcanizable compositions comprising (A) 55-85% by weight of a fluoroelastomeric copolymer of vinylidene fluoride with perfluoropropene and possibly tetrafluoroethylene; (B) 45-15% by weight of a copolymer of tetrafluoroethylene and propylene; (C) 0.7-2.5 parts, per 100 parts of the (A)+(B) blend, of a bisphenolic compound; (D) 0.3-1.5 parts, per 100 parts of the (A)+(B) blend, of a quaternary ammonium, phosphonium or aminophosphonium organic compound; (E) 0.4-5 parts, per 100 parts of the (A)+(B) blend, of an organic peroxide; (F) 1-5% by weight, as referred to (A)+(B), of a peroxidic cross-linking coagent.
    Type: Grant
    Filed: May 15, 1987
    Date of Patent: May 16, 1989
    Assignee: Ausimont S.r.l.
    Inventors: Sergio Geri, Fabio Costanzi, Cirillo: Gianna, Giovanni Moggi