PURPOSE: To stabilize 3-isothiazolone compounds contained in objects to be protected against algae, bacterial and fungal growth, by incorporating a specified salt of Cu, Zn, Mn or Fe.
CONSTITUTION: A metal salt comprising a cation (e.g. Cu, Zn, Mn, Fe++, Fe+++) and and anion (e.g. organic carboxylic acid of at least six carbon atoms, EDTA, 8-hydroxyquinolinate, gluconate, o-phenanthroline, quinolinate, N,N-bis(2- hydroxy-5-sulfobenzyl)glycine, a ligunosulfonate polymer, a polyacrylate) is incorporated in an amount for stabilization, thereby stabilizing 3-isothiazolones (e.g. 4,5-dichloro-2-octyl-3-isothiazolone, 2-octyl-3-isothiazolone, 2-methyl-3- isothiazolone, etc.) in metal working fluid, cooling tower water comprising corrosion inhibitors or scale inhibitors, laundry dish water, cosmetic formulations, a fuel system, an emulsion or, a solid protective or decorative film.
GEIRII RUIZU UIRINGAMU
