Liquid purification or separation – Processes – Chemical treatment
Reexamination Certificate
2007-08-14
2007-08-14
Hopkins, Robert (Department: 1724)
Liquid purification or separation
Processes
Chemical treatment
C210S758000, C210S167150, C210S198100, C423S513000
Reexamination Certificate
active
10878899
ABSTRACT:
A product including potassium monopersulfate and a halogen is presented. The product is useful for treatment of aquatic facilities such as swimming pools. While it was known that using a combination of potassium monopersulfate and halogen is effective for sanitizing water, a product that includes both components could not be made because of the incompatibility between the two components. The product overcomes the incompatibility by use of a barrier film between the two components. The barrier film, which includes one or more of inorganic salt, silicate, borosilicate, and organic polymer, is coated onto one of the components prior to being combined with the second component. The product may be extruded and molded into a desired shape and added to the water to be treated, as needed.
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DLA Piper (US) LLP
Truox, Inc.
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