Liquid purification or separation – Processes – Chemical treatment
Reexamination Certificate
2008-03-11
2008-03-11
Corcoran, Gladys J P (Department: 1744)
Liquid purification or separation
Processes
Chemical treatment
C210S756000, C422S037000
Reexamination Certificate
active
10506384
ABSTRACT:
Disclosed is a method of preparing a biocide having improved durability of its biocidal activity as well as disinfection efficiency at an initial stage, comprising the steps of: (a) preparing stabilized alkali or alkaline earth metal hypochlorite having a pH at least 11 by mixing a chlorine oxidant including alkali or alkaline earth metal hypochlorite with a stabilizer in an alkali solution; (b) preparing a bromide ion source; and (c) adding the bromide ion source prepared in step (b) into the stabilized alkali or alkaline earth metal hypochlorite prepared in step (a). Also, a method of controlling the growth of microorganisms using a biocide prepared by the method of the present invention is disclosed.
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Kim Chung-Soo
Shim Sang-Hea
Acculab Co., Ltd.
Conley Sean E
Corcoran Gladys J P
The Webb Law Firm P.C.
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