Patents by Inventor Stefano Ramello

Stefano Ramello 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).

  • Titanium catalysts, preparation and use in co- and ter-polymerization of alpha-olefins
    Patent number: 6900155
    Abstract: Titanium complex having general formula (I) (RCOO)nTiXp wherein R is a monofunctional hydrocarbyl radical having from 1 to 20 carbon atoms and a number of halogen atoms, selected from fluorine, chlorine and bromine, preferably chlorine, ranging from 1 to 6; X is chlorine, bromine or a beta-dicarbonyl group such as acetylacetone (AcAc), formylacetone, benzoylacetone, dibenzoylmethane; p+n=2, 3, 4, preferably p+n=3; n is greater than or equal to 1. The preparation of the above complex and its use in the co- and ter-polymerization of ?-olefins, are also described.
    Type: Grant
    Filed: March 20, 2002
    Date of Patent: May 31, 2005
    Assignee: Polimer Europa S.p.A.
    Inventors: Francesco Masi, Roberto Santi, Stefano Ramello, Anna Sommazzi, Roberto Provera, Antonio Proto
  • Process for the alkylation of aromatic compounds
    Publication number: 20050075239
    Abstract: Process for preparing alkylated aromatic compounds which comprises reacting an aromatic compound with a ketone and hydrogen in the presence of a catalytic composition comprising a solid acid material and copper. A preferred aspect is to use a catalytic composition also containing one or more elements selected from elements of groups IIIA, IVA, IIIB, IVB, VB, VIB, VIIB, group VIII limited to Fe, Ru and Os, and of the series of lanthanides. A particularly preferred aspect is to use a catalytic composition containing one or more elements selected from elements of groups IIIA and VIB.
    Type: Application
    Filed: December 18, 2002
    Publication date: April 7, 2005
    Inventors: Gianni Girotti, Franco Rivetti, Stefano Ramello
  • Process for the preparation of ep(d)m elastomeric copolymers and terpolymers
    Patent number: 6861543
    Abstract: A process is described for the preparation of elastomeric EP(D)M copolymers and terpolymers, characterized in that it is carried out in the presence of metallocene compounds of general formula (I) having a racemic stereoisomerism
    Type: Grant
    Filed: April 23, 2002
    Date of Patent: March 1, 2005
    Assignee: Polimeri Europa S.p.A.
    Inventors: Paolo Biagini, Stefano Ramello, Roberto Provera, Roberto Santi
  • Process for the preparation of ep(d)m elastomeric copolymers and terpolymers
    Publication number: 20040167017
    Abstract: A process is described for the preparation of elastomeric EP(D)M copolymers and terpolymers, characterized in that it is carried out in the presence of metallocene compounds of general formula (I) having a racemic stereoisomerism.
    Type: Application
    Filed: April 21, 2004
    Publication date: August 26, 2004
    Inventors: Paolo Biagini, Stefano Ramello, Roberto Provera, Roberto Santi
  • Titanium catalysts, preparation and use in co- and ter-polymerization of alpha-olefins
    Publication number: 20040143127
    Abstract: Titanium complex having general formula (1) (RCOO)nTiXp wherein R is a monofunctional hydrocarbyl radical having from 1 to 20 carbon atoms and a number of halogen atoms, selected from fluorine, chlorine and bromine, preferably chlorine, ranging from 1 to 6; X is chlorine, bromine or a beta-dicarbonyl group such as acetylacetone (AcAc), formylacetone, benzoylacetone, dibenzoylmethane; p+n=2, 3, 4, preferably p+n=3; n is greater than or equal to 1. The preparation of the above complex and its use in the co- and ter-polymerization of &agr;-olefins, are also described.
    Type: Application
    Filed: March 16, 2004
    Publication date: July 22, 2004
    Inventors: Francesco Masi, Roberto Santi, Stefano Ramello, Anna Sommazzi, Roberto Provera, Antonio Proto