Patents by Inventor Enzo Bacchetta

Enzo Bacchetta 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).

  • Thin film monomer removal from polyvinyl chloride latexes
    Patent number: 4315843
    Abstract: A process for extracting vinyl chloride monomer from polyvinyl chloride latexes is disclosed, characterized in that the latex is continuously flowed on and along a heat exchange surface in the form of a thin film having a thickness ranging from 0.5 to 1.2 mm, said latex having a temperature between 40.degree. and 70.degree. C. and under a pressure ranging from 45 to 210 mm Hg., and for a time ranging from 10 to 70 seconds. The gaseous vinyl chloride monomer is removed concurrently with the flow of the latex. Suitable apparatus is also disclosed.
    Type: Grant
    Filed: May 27, 1980
    Date of Patent: February 16, 1982
    Assignee: Montedison S.p.A.
    Inventors: Graziano Vidotto, Febo Sellan, Enzo Bacchetta, Sandro Mainardi, Giovanni Benussi