Patents Assigned to Pervasiv LTD
  • Separation of components of organic liquids
    Patent number: 6913696
    Abstract: A pervaporation process for separating organic liquid mixtures of components having differing polarities, uses an ion exchange membrane which comprises a polymerized alkene including pendant groups of formula SO2N(R)—A—QX where R is H or alkyl, A is alkylene, Q is quaternary ammonium, and X is a negatively-charged counter-ion, the sulfur content of the membrane being in the range 3-10 wt. %.
    Type: Grant
    Filed: March 16, 2000
    Date of Patent: July 5, 2005
    Assignee: Pervasiv LTD
    Inventors: Emanuel Korngold, Elisheva Zisner, Reuven Wachs