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).
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Patent number: 12258275Abstract: 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: GrantFiled: April 27, 2020Date of Patent: March 25, 2025Assignee: PIRELLI TYRE S.p.A.Inventors: Vincenzina Barbera, Maurizio Galimberti, Attilio Citterio, Gabriella Leonardi, Roberto Sebastiano, Jiemeng Li
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Publication number: 20230002235Abstract: 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: ApplicationFiled: April 27, 2020Publication date: January 5, 2023Applicant: PIRELLI TYRE S.p.A.Inventors: Vincenzina BARBERA, Maurizio GALIMBERTI, Attilio CITTERIO, Gabriella LEONARDI, Roberto SEBASTIANO, Jiemeng LI
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Patent number: 11091608Abstract: 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: GrantFiled: December 23, 2016Date of Patent: August 17, 2021Assignee: PIRELLI TYRE S.p.A.Inventors: Maurizio Stefano Galimberti, Roberto Sebastiano, Vincenzina Barbera, Valeria Rosaria Cipolletti, Gabriella Leonardi, Shuquan Sun, Luigia Rossiello
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Publication number: 20210179821Abstract: 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: ApplicationFiled: December 23, 2016Publication date: June 17, 2021Applicants: Pirelli Tyre S.p.A., POLITECNICO DI MILANOInventors: Maurizio Stefano GALIMBERTI, Roberto SEBASTIANO, Vincenzina BARBERA, Valeria CIPOLLETTI, Gabriella LEONARDI, Shuquan SUN, Luigia ROSSIELLO
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Patent number: 10329253Abstract: 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: GrantFiled: June 12, 2015Date of Patent: June 25, 2019Assignee: Politencnico di MilanoInventors: Vincenzina Barbera, Attilio Citterio, Maurizio Stefano Galimberti, Gabriella Leonardi, Roberto Sebastiano, Suresh Udhavrao Shisodia, Antonio Marco Valerio
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Patent number: 10160652Abstract: 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: GrantFiled: September 30, 2015Date of Patent: December 25, 2018Assignees: Politecnico Di Milano, Pirelli Tyre S.p.A.Inventors: Maurizio Stefano Galimberti, Vincenzina Barbera, Roberto Sebastiano, Antonio Marco Valerio, Gabriella Leonardi, Attilio Citterio
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Publication number: 20170275169Abstract: 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: ApplicationFiled: September 30, 2015Publication date: September 28, 2017Applicants: POLITECNICO DI MILANO, PIRELLI TYRE S.P.A.Inventors: Maurizio Stefano GALIMBERTI, Vincenzina BARBERA, Roberto SEBASTIANO, Antonio Marco VALERIO, Gabriella LEONARDI, Attilio CITTERIO
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Publication number: 20170101376Abstract: 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: ApplicationFiled: June 12, 2015Publication date: April 13, 2017Applicant: Politencnico di MilanoInventors: Vincenzina Barbera, Attilio CITTERIO, Maurizio Stefano GALIMBERTI, Gabriella LEONARDI, Roberto SEBASTIANO, Suresh Udhavrao SHISODIA, Antonio Marco VALERIO
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Patent number: 9238615Abstract: 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: GrantFiled: April 8, 2010Date of Patent: January 19, 2016Assignee: 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
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Patent number: 8766003Abstract: 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: GrantFiled: June 9, 2011Date of Patent: July 1, 2014Assignee: Bracco Imaging S.p.A.Inventors: Attilio Citterio, Elisa Battistini, Davide Belnome, Federica Buonsanti, Luciano Lattuada, Gabriella Leonardi, Fulvio Uggeri, Evelin Vignale, Massimo Visigalli
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Publication number: 20130072719Abstract: 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: ApplicationFiled: June 9, 2011Publication date: March 21, 2013Applicant: BRACCO IMAGING S.P.A.Inventors: Attilio Citterio, Elisa Battistini, Davide Belnome, Federica Buonsanti, Luciano Lattuada, Gabriella Leonardi, Fulvio Uggeri, Evelin Vignale, Massimo Visigalli
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Publication number: 20120041224Abstract: 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: ApplicationFiled: April 8, 2010Publication date: February 16, 2012Applicant: 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