Patents Assigned to SNIA Viscosa Societa' Nazionale Industria Application Viscosa S.p.A.
  • Method for producing aldehyde acids by selective ozonization of cyclo-olefins
    Patent number: 4085127
    Abstract: A mixture containing cyclo-olefin in concentrations of from 10 to 40% is jected to a selective ozonation step to produce a heavy phase containing a mono-ozonide of the cyclo-olefin. The heavy phase is insoluble in the mixture and therefore settles and is drawn off and subjected to a transposition step to remove a single unsaturation, and produces an acidic aldehyde, which is thereafter subjected to an amination or hydrogenation process to produce unsaturated products having important applications as polymers or copolymers.
    Type: Grant
    Filed: July 10, 1974
    Date of Patent: April 18, 1978
    Assignee: SNIA Viscosa Societa' Nazionale Industria Application Viscosa S.p.A.
    Inventors: Francesco Siclari, Pietro Paolo Rossi