Patents by Inventor Silverio Soldini

Silverio Soldini 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 preparing lubricating greases based on polytetrafluoroethylene and perfluoropolyethers
    Patent number: 4472290
    Abstract: A lubricating grease consisting of a mixture containing from 15% to 40% by weight of polytetrafluoroethylene, from 60% to 85% by weight of a liquid dispersing medium of the type of perfluoropolyether or oligomer of C.sub.2 ClF.sub.3, less than 1% by weight of a perfluoroalkyl or polyoxyperfluoroalkyl surfactant and, optionally, stabilizing and anticorrosive agents of the class of polyoxyperfluoroderivatives, said mixture being subjected to grinding in order to obtain the disaggregation of the polytetrafluoroethylene granules into primary particles not larger than 1 micron.
    Type: Grant
    Filed: October 5, 1982
    Date of Patent: September 18, 1984
    Assignee: Montedison S.p.A.
    Inventors: Gerardo Caporiccio, Silverio Soldini, Ezio Strepparola