Patents Assigned to Chrysa
  • Bactericidic and fungicidic chloromethylisopropyphenols
    Patent number: 4154968
    Abstract: 4-Chloro-3-methyl-2-isopropyl and 4-chloro-3-methyl-5-isopropyl phenols are effective as bactericides and fungicides, especially against staphylococcus, pneumococcus and tricoccus microorganisms in doses as low as 5 parts per million.
    Type: Grant
    Filed: February 17, 1978
    Date of Patent: May 15, 1979
    Assignee: Chrysa
    Inventors: Robert M. Perrin, Gisele Aureille, Marie-Francoise Vincent-Falquet, Edmond Collange
  • Bactericidic and fungicidic chloromethylisopropylphenols
    Patent number: 4098828
    Abstract: Chloromethylisopropylphenois, namely 4-chloro-3-methyl-2-isopropyl phenol, 4-chloro-3-methyl-5-isopropyl phenol and their 6,6'-methylene and 2,2'-methylene bis derivatives, effective as a bactericide and fungicide, especially against staphylococcus, pneumococcus and tricoccus. They are effective in doses as low as 5 ppm, are stable, substantially odor-free and can be readily prepared by conventional chemical reactions to obtain a substantially nontoxic white product.
    Type: Grant
    Filed: May 7, 1973
    Date of Patent: July 4, 1978
    Assignee: Chrysa
    Inventors: Robert Marc Perrin, Gisele Aureille, Marie-Francoise Vincent-Falquet, Edmond Collange