Patent ID: 6403533
Filing Date: 2002-06-11
Classification: A01N,Y10S

Abstract:
A microbicide composition comprising:(a) 0.5 to 5 percent, based on the weight of the composition, of a water-soluble 3-isothiazolone; (b) 2 to 50 percent, based on the weight of the composition, of a water-soluble organic solvent selected from one or more of polyols having molecular weights up to 200; (C1-C4)alkyl esters of acetic acid and propionic acid; and (C2-C4) alcohols; (c) 0.0005 to 0.1 percent, based on the weight of the composition, of a cupric ion in the form of a copper salt; and (d) water; wherein the composition is free of brown precipitate for at least 4 weeks when maintained at a temperature of 55Â° C. and the composition is substantially free of metal nitrite, metal nitrate and magnesium salts.