Patents by Inventor Pietro Lafratta

Pietro Lafratta 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).

  • Liquid aqueous compositions comprising perfluoropolyethereal compounds suitable as lubricants in the plastic processing of metals
    Patent number: 5211861
    Abstract: Aqueous compositions containing from 1% to 40% by weight of a perfluoropolyethereal compound having a molecular weight ranging from 400 to 5,000 and containing carboxylic end groups, which are salified with an organic or inorganic base are disclosed. The compositions are useful as lubricating/refrigerating liquids in the plastic cold processing processes of metals, in particular, rolling, dishing, drawing, and the like.
    Type: Grant
    Filed: January 22, 1991
    Date of Patent: May 18, 1993
    Assignee: Ausimont S.r.l.
    Inventors: Pietro Lafratta, Alba Chittofrati