Patents by Inventor Roberto Croce

Roberto Croce 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 the preparation and the simultaneous stabilization of polyoxymethylene
    Patent number: 4000215
    Abstract: Polyoxymethylene is obtained in a stabilized form by polymerizing formaldehyde in a liquid organic diluent containing in a dispersed form a catalyst-stabilizer consisting of a polylactamic polymer carrying a terminal ionic couple on its macromolecular chain, said catalyst-stabilizer being present in an amount of from 0.1 to 5 parts by weight for each 100 parts of polyoxymethylene.
    Type: Grant
    Filed: December 9, 1975
    Date of Patent: December 28, 1976
    Assignee: Societa' Italiana Resine S.I.R. S.p.A.
    Inventors: Pierino Radici, Paolo Colombo, Roberto Croce