Patents by Inventor Giuseppe Ghetti

Giuseppe Ghetti 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 producing stabilized olefin terpolymers and stabilized olefin terpolymers produced according to said process
    Patent number: 4113694
    Abstract: A method is described whereby olefin terpolymers, consisting of ethylene, an alpha olefin and a polyene having in the molecule, in addition to the double bond participating in the formation of the macromolecule, at least one conjugated double bond system, are stabilized against oxidative aging without destroying their characteristic high vulcanization rate by reacting them with a dienophilic agent represented by one of the following formulae: ##STR1## wherein R and R.sub.6 may be an alkyl, alkenyl, cycloalkyl, aryl or aralkyl radical having up to 8 carbon atoms, R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 may be hydrogen or akyl, aryl, cycloalkyl or aralkyl radicals having up to 8 carbon atoms, the R.sub.1 -R.sub.2 and R -R pairs may be divalent radicals forming condensed rings.
    Type: Grant
    Filed: March 9, 1977
    Date of Patent: September 12, 1978
    Assignee: Snam Progetti, S.p.A.
    Inventors: Sergio Arrighetti, Sebastiano Cesca, Giuseppe Ghetti, Eugenio Vajna
  • Process for producing stabilized olefin terpolymers and stabilized olefin terpolymers produced according to said process
    Patent number: 4055535
    Abstract: A method is described whereby olefin terpolymers, consisting of ethylene, an alpha olefin and a polyene having in the molecule, in addition to the double bond participating in the formation of the macromolecule, at least one conjugated double bond system, are stabilized against oxidative aging without destroying their characteristic high vulcanization rate by reacting them with a dienophilic agent represented by one of the following formulae: ##STR1## wherein R and R.sub.6 may be an alkyl, alkenyl, cycloalkyl, aryl or aralkyl radical having up to 8 carbon atoms, R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 may be hydrogen or alkyl, aryl, cycloalkyl or aralkyl radicals having up to 8 carbon atoms, the R.sub.1 -R.sub.2 and R -R pairs may be divalent radicals forming condensed rings.
    Type: Grant
    Filed: April 11, 1975
    Date of Patent: October 25, 1977
    Assignee: Snam Progetti S.p.A.
    Inventors: Sergio Arrighetti, Sebastiano Cesca, Giuseppe Ghetti, Eugenio Vajna