Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – For cleaning a specific substrate or removing a specific...
Reexamination Certificate
2005-05-31
2005-05-31
Del Cotto, Gregory R. (Department: 1751)
Cleaning compositions for solid surfaces, auxiliary compositions
Cleaning compositions or processes of preparing
For cleaning a specific substrate or removing a specific...
C510S191000, C510S199000, C510S372000, C510S379000, C510S380000, C510S381000
Reexamination Certificate
active
06900164
ABSTRACT:
A composition is provided comprising two liquids which are separately maintained prior to forming an admixture during delivery to a surface to be treated, whereupon the admixture generates a foam sufficient for cleaning efficacy and stability. A first liquid preferably includes a hypohalite, or a hypohalite generating agent and a second liquid preferably includes a peroxygen agent. The first liquid is thickened to a specified rheology, resulting in the generation of a highly effective foam. As the two liquids are initially separated, the hypohalite generating agent can be maintained in an environment free of peroxygen agent and otherwise conducive to their cleaning activity and stability up to the time of use. When the two liquids are allowed to mix, for example, by simultaneously pouring into a drain, the hypohalite and peroxygen react to liberate oxygen gas. As foam generation occurs, the escaping gas contacts surfactant in the solution, and creates foam which expands to completely fill the drain pipe. The expanded foam contains an excess of the hypohalite, which acts to clean the drain.
REFERENCES:
patent: 6479444 (2002-11-01), Porticos et al.
patent: 6638900 (2003-10-01), Ajmani et al.
patent: 6660702 (2003-12-01), Ajmani et al.
patent: 60-13897 (1985-01-01), None
patent: WO98/33880 (1998-08-01), None
patent: WO00/12672 (2000-03-01), None
Ajmani Inderjeet K.
Chung Jessica Y.
Del Cotto Gregory R.
The Clorox Company
Winghart Monica H.
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