초록 ▼

Metal-containing biocides for treating swimming pool water, spas, cooling towers, or other industrial applications without staining are disclosed. The biocidal compositions include a source of metal and a polymeric sequestering agent. The polymeric sequestering agent may be a water-soluble anionic o

Metal-containing biocides for treating swimming pool water, spas, cooling towers, or other industrial applications without staining are disclosed. The biocidal compositions include a source of metal and a polymeric sequestering agent. The polymeric sequestering agent may be a water-soluble anionic or cationic polymer. Conventional sequestering agents may also be included in the composition.

대표청구항 ▼

1. A method of reducing the ability of a copper-, silver-, and/or zinc-containing biocide to stain pool surfaces, said method comprising providing the copper-, silver-, and/or zinc-containing biocide to a pool in conjunction with a water-soluble anionic or cationic polymeric sequestering agent effec

1. A method of reducing the ability of a copper-, silver-, and/or zinc-containing biocide to stain pool surfaces, said method comprising providing the copper-, silver-, and/or zinc-containing biocide to a pool in conjunction with a water-soluble anionic or cationic polymeric sequestering agent effective to sequester at least some of the copper, silver, and/or zinc; wherein the copper, silver, and/or zinc provided by the biocide is present in the pool water in an amount ranging from 0.025 ppm to 0.7 ppm, and the ratio of anionic or cationic polymeric sequestering agent to copper, silver, and/or zinc in the pool water is between 0.7:1 and 4.7:1.