Patents by Inventor Sergio Lombardini

Sergio Lombardini 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 recycling of expanded polystyrene
    Patent number: 7728047
    Abstract: The invention relates to an enhanced process for the recycling of expanded polystyrene. Said process essentially comprises the reduction in volume of expanded polystyrene by means of dissolution in a solvent, separation of the insoluble components, selective precipitation of the polystyrene with an anti-solvent, separation, drying and extrusion of the precipitated polystyrene, recovery by distillation and recycling of the solvent. The process is characterized in that the anti-solvent is a butanol selected form n-butanol, iso-butanol or sec-butanol and the solvent is dimethyl carbonate, alone or in a mixture containing up to 25% by weight of butanol.
    Type: Grant
    Filed: June 28, 2006
    Date of Patent: June 1, 2010
    Assignee: Polimeri Europa S.p.A.
    Inventors: Marcello Notari, Franco Rivetti, Maurizio Ghirardini, Sergio Lombardini
  • Process for the Recycling of Expanded Polystyrene
    Publication number: 20080221228
    Abstract: The invention relates to an enhanced process for the recycling of expanded polystyrene. Said process essentially comprises the reduction in volume of expanded polystyrene by means of dissolution in a solvent, separation of the insoluble components, selective precipitation of the polystyrene with an anti-solvent, separation, drying and extrusion of the precipitated polystyrene, recovery by distillation and recycling of the solvent. The process is characterized in that the anti-solvent is a butanol selected form n-butanol, iso-butanol or sec-butanol and the solvent is dimethyl carbonate, alone or in a mixture containing up to 25% by weight of butanol.
    Type: Application
    Filed: June 28, 2006
    Publication date: September 11, 2008
    Applicant: POLIMERI EUROPA S.p.A.
    Inventors: Marcello Notari, Franco Rivetti, Maurizio Ghirardini, Sergio Lombardini
  • Process for the alkylation of aromatic compounds
    Patent number: 6512153
    Abstract: Process for the alkylation of aromatic compounds by the reaction of the aromatic compound of interest with isopropanol, alone or mixed with propylene, wherein the reaction is carried out in the presence of a catalytic composition based on zeolite, under mixed gas-liquid phase conditions or under completely liquid phase conditions, at such temperature and pressures that the concentration of water in the reaction liquid phase is not higher than 8,000 ppm w/w, regardless of the total water content present in the reaction mixture.
    Type: Grant
    Filed: July 7, 2000
    Date of Patent: January 28, 2003
    Assignee: Enichem S.p.A.
    Inventors: Oscar Cappellazzo, Gianni Girotti, Massimiliano Pollastri, Sergio Lombardini, Domenico Piccininno