Patents by Inventor Anna M. R. Galletii

Anna M. R. Galletii 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).

  • Polymerization catalyst, the process for its preparation and its use in ethylene homo and copolymerization
    Patent number: 5026675
    Abstract: A catalyst active in the polymerization of ethylene or the copolymerization of ethylene with unsaturated monomers consists of a nickel complex catalyst bonded to a polystyrene substrate, and definable by the general formula (I): ##STR1## where R, R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6 and R.sub.7 have the meanings given in the description.The preparation is described of the catalyst and its use in the polymerization of ethylene and the copolymerization of ethylene with other unsaturated monomers.
    Type: Grant
    Filed: April 10, 1990
    Date of Patent: June 25, 1991
    Assignee: Eniricerche S.p.A.
    Inventors: Giuseppe Braca, Alessandro Ricci, Glauco Sbrana, Maurizio Brunelli, Aldo Giusti, Guglielmo Bertolini, Anna M. R. Galletii