Patents by Inventor Lucia Roncetti

Lucia Roncetti 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 grafting maleic anhydride onto unsaturated polyolefinic elastomers by mass reaction
    Patent number: 5153270
    Abstract: Maleic anhydride is grafted onto unsaturated elastomeric terpolymers consisting of monomeric units coming from at least two different monomers having the formula R--CH.dbd.CH.sub.2 (R=hydrogen or an alkyl group containing from 1 to 6 carbon atoms) and from a conjugated or non-conjugated dienic monomer by mass reaction, which is carried out by heating at 120.degree.-350.degree. C. a mixture of said maleic anhydride with the terpolymer in the presence of a catalyst consisting of a compound having the formula:M.sub.n X.sub.zwherein:M=a metal of group VIII of the periodic system, and in particular Rh and Ru;X=a counterion,N=valence of the counterion; andZ=valence of the metal.
    Type: Grant
    Filed: August 1, 1989
    Date of Patent: October 6, 1992
    Assignee: Ausimont S.r.l.
    Inventors: Lucia Roncetti, Viviano Banzi