Patents by Inventor Gabriella Leonardi

Gabriella Leonardi 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).

  • Publication number: 20230002235
    Abstract: The present invention relates to elastomer compositions comprising adducts between compounds of formula (I) preferably derived from natural sources such as mucic, pyromucic, glucaric, glycaric, galactaric, muconic acid and/or linear derivatives thereof containing ester or amide groups and/or cyclic derivatives thereof with heteroatoms in the ring, such as oxygen or nitrogen, and carbon allotropes in which the carbon is sp2 hybridized, such as for example carbon nanotubes, graphene or nanographites, carbon black.
    Type: Application
    Filed: April 27, 2020
    Publication date: January 5, 2023
    Applicant: PIRELLI TYRE S.p.A.
    Inventors: Vincenzina BARBERA, Maurizio GALIMBERTI, Attilio CITTERIO, Gabriella LEONARDI, Roberto SEBASTIANO, Jiemeng LI
  • Patent number: 11091608
    Abstract: The present invention relates to a vulcanizable elastomeric composition comprising a secondary accelerator that may be used in combination with sulphenamide alone, completely avoiding the use of a guanidine. Moreover, said accelerator promotes dispersion of the silica in the compound and migrates with difficulty in the elastomeric composition itself. The invention also relates to the use of a vulcanization accelerator for said elastomeric composition, to the associated vulcanization process and to a tyre comprising same.
    Type: Grant
    Filed: December 23, 2016
    Date of Patent: August 17, 2021
    Assignee: PIRELLI TYRE S.p.A.
    Inventors: Maurizio Stefano Galimberti, Roberto Sebastiano, Vincenzina Barbera, Valeria Rosaria Cipolletti, Gabriella Leonardi, Shuquan Sun, Luigia Rossiello
  • Publication number: 20210179821
    Abstract: The present invention relates to a vulcanizable elastomeric composition comprising a secondary accelerator that may be used in combination with sulphenamide alone, completely avoiding the use of a guanidine. Moreover, said accelerator promotes dispersion of the silica in the compound and migrates with difficulty in the elastomeric composition itself. The invention also relates to the use of a vulcanization accelerator for said elastomeric composition, to the associated vulcanization process and to a tyre comprising same.
    Type: Application
    Filed: December 23, 2016
    Publication date: June 17, 2021
    Applicants: Pirelli Tyre S.p.A., POLITECNICO DI MILANO
    Inventors: Maurizio Stefano GALIMBERTI, Roberto SEBASTIANO, Vincenzina BARBERA, Valeria CIPOLLETTI, Gabriella LEONARDI, Shuquan SUN, Luigia ROSSIELLO
  • Patent number: 10329253
    Abstract: The present invention relates to a process for the synthesis of molecules that have a pyrrole ring bonded to a diol. In particular, the invention relates to the synthesis of molecules that have the pyrrole ring and a diol derived from serinol by means of a process that does not demand the use of solvents or chemical catalysts. The process consists of a first reaction phase that takes place without any solvents and/or organic diluents, giving rise to an intermediate compound, and a second phase in which the intermediate compound is converted into the required compound by heating the reaction mixture to a temperature ranging from 100° to 200° C. for an interval in the range of 1 to 500 minutes, or by adding a carbon allotrope or its derivatives.
    Type: Grant
    Filed: June 12, 2015
    Date of Patent: June 25, 2019
    Assignee: Politencnico di Milano
    Inventors: Vincenzina Barbera, Attilio Citterio, Maurizio Stefano Galimberti, Gabriella Leonardi, Roberto Sebastiano, Suresh Udhavrao Shisodia, Antonio Marco Valerio
  • Patent number: 10160652
    Abstract: An adduct consists of derivatives of serinol pyrrole and of carbon allotropes in which the carbon is sp2 hybridized, such as carbon nanotubes, graphene or nano-graphites or carbon black, in order to improve the chemical-physical properties of the allotropes increasing above all their dispersibility and stability in liquid media and in polymer matrices, and a process for preparation of the adduct.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: December 25, 2018
    Assignees: Politecnico Di Milano, Pirelli Tyre S.p.A.
    Inventors: Maurizio Stefano Galimberti, Vincenzina Barbera, Roberto Sebastiano, Antonio Marco Valerio, Gabriella Leonardi, Attilio Citterio
  • Publication number: 20170275169
    Abstract: An adduct consists of derivatives of serinol pyrrole and of carbon allotropes in which the carbon is sp2 hybridized, such as carbon nanotubes, graham or nano-graphites or carbon black, in order to improve the chemical-physical properties of the allotropes increasing above all their dispersibility and stability in liquid media and in polymer matrices, and a process for preparation of the adduct.
    Type: Application
    Filed: September 30, 2015
    Publication date: September 28, 2017
    Applicants: POLITECNICO DI MILANO, PIRELLI TYRE S.P.A.
    Inventors: Maurizio Stefano GALIMBERTI, Vincenzina BARBERA, Roberto SEBASTIANO, Antonio Marco VALERIO, Gabriella LEONARDI, Attilio CITTERIO
  • Publication number: 20170101376
    Abstract: The present invention relates to a process for the synthesis of molecules that have a pyrrole ring bonded to a diol. In particular, the invention relates to the synthesis of molecules that have the pyrrole ring and a diol derived from serinol by means of a process that does not demand the use of solvents or chemical catalysts. The process consists of a first reaction phase that takes place without any solvents and/or organic diluents, giving rise to an intermediate compound, and a second phase in which the intermediate compound is converted into the required compound by heating the reaction mixture to a temperature ranging from 100° to 200° C. for an interval in the range of 1 to 500 minutes, or by adding a carbon allotrope or its derivatives.
    Type: Application
    Filed: June 12, 2015
    Publication date: April 13, 2017
    Applicant: Politencnico di Milano
    Inventors: Vincenzina Barbera, Attilio CITTERIO, Maurizio Stefano GALIMBERTI, Gabriella LEONARDI, Roberto SEBASTIANO, Suresh Udhavrao SHISODIA, Antonio Marco VALERIO
  • Patent number: 9238615
    Abstract: The present invention relates to a process for the preparation of iodinated anilines; in particular, it relates to a process including the direct iodination, with suitably activated iodine, of 3,5-disubstituted anilines to the corresponding 3,5-disubstituted-2,4,6-triiodoanilines, which are useful intermediates for the synthesis of x-ray contrast media, and to the preparation of the contrast media themselves.
    Type: Grant
    Filed: April 8, 2010
    Date of Patent: January 19, 2016
    Assignee: BRACCO IMAGING S.P.A.
    Inventors: Attilio Citterio, Luciano Lattuada, Gabriella Leonardi, Fulvio Uggeri, Evelin Vignale, Massimo Visigalli, Aurelia Ferrigato, Gabriele Meli, Roberta Fretta, Roberta Mazzon
  • Patent number: 8766003
    Abstract: The present invention relates to a process for the preparation of iodinated phenols; in particular; it relates to a process including the direct iodination, with suitably activated iodine, of 3,5-disubstituted phenol compounds to the corresponding 3,5-disubstituted-2,4,6-triiodophenols, which are useful intermediates for the synthesis of x-ray contrast media, and to the preparation of the contrast media themselves.
    Type: Grant
    Filed: June 9, 2011
    Date of Patent: July 1, 2014
    Assignee: Bracco Imaging S.p.A.
    Inventors: Attilio Citterio, Elisa Battistini, Davide Belnome, Federica Buonsanti, Luciano Lattuada, Gabriella Leonardi, Fulvio Uggeri, Evelin Vignale, Massimo Visigalli
  • Publication number: 20130072719
    Abstract: The present invention relates to a process for the preparation of iodinated phenols; in particular; it relates to a process including the direct iodination, with suitably activated iodine, of 3,5-disubstituted phenol compounds to the corresponding 3,5-disubstituted-2,4,6-triiodophenols, which are useful intermediates for the synthesis of x-ray contrast media, and to the preparation of the contrast media themselves.
    Type: Application
    Filed: June 9, 2011
    Publication date: March 21, 2013
    Applicant: BRACCO IMAGING S.P.A.
    Inventors: Attilio Citterio, Elisa Battistini, Davide Belnome, Federica Buonsanti, Luciano Lattuada, Gabriella Leonardi, Fulvio Uggeri, Evelin Vignale, Massimo Visigalli
  • Publication number: 20120041224
    Abstract: The present invention relates to a process for the preparation of iodinated anilines; in particular, it relates to a process including the direct iodination, with suitably activated iodine, of 3,5-disubstituted anilines to the corresponding 3,5-disubstituted-2,4,6-triiodoanilines, which are useful intermediates for the synthesis of x-ray contrast media, and to the preparation of the contrast media themselves.
    Type: Application
    Filed: April 8, 2010
    Publication date: February 16, 2012
    Applicant: BRACCO IMAGING S.P.A.
    Inventors: Attilio Citterio, Luciano Lattuada, Gabriella Leonardi, Fulvio Uggeri, Evelin Vignale, Massimo Visigalli, Aurelia Ferrigato, Gabriele Meli, Roberta Fretta, Roberta Mazzon