Patents Assigned to Dauten S.A.
  • Method for the photostabilization of polyhydroxylated sterols and stabilized biological insecticidal product obtained thereby
    Patent number: 4045555
    Abstract: Insect metamorphosis hormones of the polyhydroxylated sterol type are light sensitive and tend to lose their activity under the action of light, especially UV radiations. An insect controlling formulation is suggested herein, which contains, in addition to the insect metamorphosis hormones, photostabilizing substances such as benzotriazoles, substituted phenylglioxylic acids and salts thereof.
    Type: Grant
    Filed: September 26, 1972
    Date of Patent: August 30, 1977
    Assignee: Dauten S.A.
    Inventors: Giorgio Ferrari, Luigi Canonica, Bruno Danieli