Patents by Inventor Lucia Rocchi

Lucia Rocchi 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 producing vanadium-arenes
    Patent number: 5093508
    Abstract: Vanadium-arenes[V(arene).sub.2 ]wherein "arene" means benzene or mono-, di- or poly-(C.sub.1 -C.sub.5)-alkyl-substituted benzene, are prepared by means of a process which comprises:(a) forming a complex:[V(arene).sub.2 ](+).AlCl.sub.4 (-)by reacting vanadium trichloride, aluminum metal and aluminum trichloride with one another, by operating in the presence of the selected arene;(b) treating the so obtained complex with an either cyclic or acyclic, liquid aliphatic ether to obtain the reduction of [V(arene).sub.2 ](+) to [V(arene).sub.2 ]; and(c) recovering the so separated vanadium-arene.The vanadium-arenes are useful in the preparation of catalysts for olefin polymerization.
    Type: Grant
    Filed: January 4, 1991
    Date of Patent: March 3, 1992
    Assignee: Enimont Anic S.r.l.
    Inventors: Fausto Calderazzo, Guido Pampaloni, Lucia Rocchi, Angelo Moalli, Francesco Masi, Renzo Invernizzi