Patents by Inventor Gian P. Gambaretto

Gian P. Gambaretto 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).

  • Solid lubricant and process for preparing it
    Patent number: 4724093
    Abstract: A solid lubricant, consisting of solid perfluorocarbons, with linear or substantially linear carbon atoms chain, containing from 10 to 20 carbon atoms and having a value of surface tension ranging from 13 to 15 dyne/cm, is obtained by dimerization or co-dimerization of perfluorocarbonsulphonyl halogenidesC.sub.n F.sub.2n+1 SO.sub.2 X(in which X represents an atom of halogen), having a linear or substantially linear chain of carbon atoms and bearing the --SO.sub.2 X group at one end of the chain, operating at high temperature, with short reaction times, and preferably in the presence of a metal catalyst.The solid perfluorocarbon lubricant can be used, if desired as a mixture with paraffinic wax, on sliding surfaces, particularly consisting of a polymeric material either porous or made porous.
    Type: Grant
    Filed: March 29, 1985
    Date of Patent: February 9, 1988
    Assignee: Enichimica Secondaria, S.p.A.
    Inventor: Gian P. Gambaretto
  • Solid lubricant and process for preparing it
    Patent number: 4529826
    Abstract: A solid lubricant, consisting of solid perfluorocarbons, with linear or substantially linear carbon atoms chain, containing from 10 to 20 carbon atoms and having a value of surface tension ranging from 13 to 15 dyne/cm, is obtained by dimerization or co-dimerization of perfluorocarbonsulphonyl halogenidesC.sub.n F.sub.2n+1 SO.sub.2 X(in which X represents an atom of halogen), having a linear or substantially linear chain of carbon atoms and bearing the --SO.sub.2 X group at one end of the chain, operating at high temperature, with short reaction times, and preferably in the presence of a metal catalyst.The solid perfluorocarbon lubricant can be used, if desired as a mixture with paraffinic wax, on sliding surfaces, particularly consisting of a polymeric material either porous or made porous.
    Type: Grant
    Filed: July 24, 1984
    Date of Patent: July 16, 1985
    Assignee: Enichimica Secondaria S.p.A.
    Inventor: Gian P. Gambaretto