Patents Assigned to SNIA VISDOSA Societa Nazionale Industria Applicazioni Viscosa S.p.A.
  • Method for preparing .alpha., .omega.-diamines
    Patent number: 4218399
    Abstract: A method is disclosed for preparing .alpha., .omega.-diamines by reductive mination of corresponding .alpha., .omega.-dialdehydes with ammonia in an aqueous mixture of butyl alcohol.
    Type: Grant
    Filed: February 23, 1979
    Date of Patent: August 19, 1980
    Assignee: SNIA VISDOSA Societa Nazionale Industria Applicazioni Viscosa S.p.A.
    Inventors: Francesco Siclari, Pietro P. Rossi, Mario De Gaetano