Patents by Inventor by Clara Pungiluppi, heir

by Clara Pungiluppi, heir 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).

  • Silylated U.V. stabilizers containing hindered tertiary amines
    Patent number: 4946880
    Abstract: Reactive stabilizer compounds, to be used in the stabilization of organic polymers, contain a sterically hindered, N-substituted piperidinic, morpholinic or pyrrolidinic group, and at least a hydrolysable silicic function.Such compounds give rise, by hydrolysis of the silicic function, to complex resinous structures endowed with stabilizing properties.The reactive stabilizer compounds can spontaneously hydrolyse inside the polymer, or they can be stably supported on a solid support, or they can be chemically linked to the polymeric chain to be stabilized.
    Type: Grant
    Filed: October 5, 1987
    Date of Patent: August 7, 1990
    Assignee: Enichem Synthesis S.p.A.
    Inventors: Silvestro Costanzi, Damiano Gussoni, Omero Zavattini, deceased, by Clara Pungiluppi, heir, by Renato Zavattini, heir, Luciano Pallini