Patents by Inventor Italo Borghi

Italo Borghi 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 the imidization of copolymers of maleic anhydride with vinyl-aromatic monomers
    Patent number: 4889896
    Abstract: The invention concerns a process for the imidization of copolymers of maleic anhydride with vinyl-aromatic monomers using an urea as the imidizing agent.
    Type: Grant
    Filed: December 27, 1988
    Date of Patent: December 26, 1989
    Assignee: Montedipe S.p.A.
    Inventors: Luciano Canova, Umberto Giannini, Enrico Albizzati, Italo Borghi, Antonio Proto
  • Stengthened high impact styrene polymers showing improved physical-mechanical properties
    Patent number: 4849473
    Abstract: Strengthened high impact resistant styrene polymers having improved physical-mechanical properties, particularly a high resilience at room temperature and at lower temperatures, and break elongation, containing as a dispersed phase an olefinic rubber, preferably an ethylene-propylene or an ethylene-propylene-diene rubber and a polyolefin. The amount of the polyolefin may be up to 15% by weight.
    Type: Grant
    Filed: May 12, 1987
    Date of Patent: July 18, 1989
    Assignee: Montedipe S.p.A.
    Inventors: Giuseppe Cigna, Gian C. Fasulo, Gianfranco Biglione, Italo Borghi
  • Thermoplastic rubbers and process for preparing same
    Patent number: 4340704
    Abstract: Thermoplastic rubbers comprising propylene-ethylene copolymers containing from 50% to 90% by weight of propylene and showing, on X-rays examination in the unoriented state, crystallinity of the polypropylene and/or polyethylene type are disclosed.Also disclosed is a method for preparing the thermoplastic rubbers by polymerizing mixtures of propylene and ethylene in the presence of a catalyst obtained by mixing(A) a catalyst-forming component which is (a) an addition and/or substitution product of an electron-donor compound (or a Lewis base) with an Al-trialkyl compound, or (b) the addition reaction product of an electron-donor compound with an Al-alkyl compound containing two or more aluminum atoms bound to each other through an oxygen or nitrogen atom, component (A) being further characterized in that it is prepared by reacting 1.0 mole of an Al-alkyl compound with 0.1-1.
    Type: Grant
    Filed: April 30, 1980
    Date of Patent: July 20, 1982
    Assignee: Montedison S.p.A.
    Inventors: Italo Borghi, Sergio Foschi, Paolo Galli
  • Thermoplastic rubbers and process for preparing same
    Patent number: 4298721
    Abstract: Thermoplastic rubbers comprising propylene-ethylene copolymers containing from 50% to 90% by weight of propylene and showing, on X-rays examination in the unoriented state, crystallinity of the polypropylene and/or polyethylene type are disclosed.Also disclosed is a method for preparing the thermoplastic rubbers by polymerizing mixtures of propylene and ethylene in the presence of a catalyst obtained by reacting.(A) a catalyst-forming component which is (a) an addition and/or substitution product of an electron-donor compound (or a Lewis base) with an Al-trialkyl compound, or (b) the addition reaction product of an electron-donor compound with an Al-alkyl compound containing two or more aluminum atoms bound to each other through an oxygen or nitrogen atom, component (A) being further characterized in that it is prepared by reacting 1.0 mole of a Al-alkyl compound with 0.1-1.
    Type: Grant
    Filed: March 1, 1979
    Date of Patent: November 3, 1981
    Assignee: Montedison S.p.A.
    Inventors: Italo Borghi, Sergio Foschi, Paolo Galli