Patents Examined by Chalres N. Hart
  • Process for scale control using mixtures of polycationic and polyanionic polymers
    Patent number: 4147627
    Abstract: Magnesium hydroxide scale formation in evaporative desalination units is inhibited by adding to the saline water being processed a mixture of certain polycationic and polyanionic polymers.
    Type: Grant
    Filed: February 7, 1977
    Date of Patent: April 3, 1979
    Assignee: American Cyanamid Company
    Inventor: Richard M. Goodman