Patents Assigned to Marni S.A.
  • Method of sulfonation of aromatic hydrocarbons with minimized by-product formation
    Patent number: 3935237
    Abstract: The invention provides a method, applicable on an industrial scale, suitable to permit the production of sulphonated aromatic compounds with only a negligible formation of undesirable compounds.
    Type: Grant
    Filed: March 6, 1974
    Date of Patent: January 27, 1976
    Assignee: Marni S.A.
    Inventor: Alfred Davidsohn