Patents Represented by Law Firm Hamond & Littell, Weissenberger and Muserlian
  • Composite diaphragms and process for electrolyzing alkali metal chloride
    Patent number: 4236979
    Abstract: Porous and electrolyte permeable composite diaphragms for electrolysis cells comprising a chemically inert, fibrous porous matrix or substrate impregnated with a copolymer of divinylbenzene and at least one member of the group consisting of 2-vinylpyridine and 4-vinylpyridine, method of electrolysis of an electrolyte using the said diaphragms and an electrolysis cell containing said diaphragms.
    Type: Grant
    Filed: February 22, 1979
    Date of Patent: December 2, 1980
    Assignee: Oronzio de Nora Impianti Elettrochimici S.p.A.
    Inventors: Oronzio de Nora, Luigi Giuffre, Giovanni Modica