Beverly Jean El A&apos mma, Susan Lynn Nagahashi: Stable biocidal compositions. Rohm and Haas Company, Kenneth Crimaldi, July 3, 2001: US06255331 (9 worldwide citation)

Disclosed are biocidal compositions comprising mixtures of formaldehyde-releasing imidazolidines, such as 1,3-dimethylol-5,3-dimethylhydantoin, and 3-isothiazolones stabilized with low levels of copper salts.

Beverly Jean El A&apos mma: Stable microbicide formulation. Rohm and Haas Company, Joanne P Will, S Matthew Cairns, Thomas J Howell, April 3, 2001: US06211213 (8 worldwide citation)

Stable microbicidal compositions containing a 3-isothiazolone compound, organic oxidants, copper salts and water are disclosed. Also disclosed are methods of stabilizing 3-isothiazolone compositions.

Beverly Jean El A&apos mma: Stabilized microbicide formulation. Rohm and Haas Company, Thomas J Howell, June 11, 2002: US06403533

A method for stabilizing dilute solutions of 3-isothiazolone compounds against the formation of unwanted brown precipitate in the presence of low levels of copper, by the addition of 2 to 50% of selected water-soluble organic solvents, is disclosed. The aqueous solutions are substantially free of me ...