Warewashing composition for use in automatic dishwashing machines, comprising a mixture of aluminum and zinc ions
First Claim
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1. A warewashing detergent composition comprising:
- (a) a cleaning agent comprising about 0.5 wt. % to about 20 wt. % surfactant based on the weight of the detersive composition;
(b) an alkaline source in an amount effective to provide a use solution having a pH of at least about 8 and wherein said use solution is obtained by diluting the warewashing detergent composition with water;
(c) a corrosion inhibitor in an amount sufficient for reducing corrosion and/or reducing the etching of glass, the corrosion inhibitor comprising;
(i) a source of aluminum ion;
(ii) a source of zinc ion,wherein the amount of the source of aluminum ion and the source of zinc ion is sufficient to provide a weight ratio of aluminum ion to zinc ion of about 6;
1 to about 1;
20; and
(d) encapsulated chlorine bleaching agent.
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Abstract
A warewashing detergent composition is provided according to the invention. The warewashing detergent composition includes a cleaning agent, an alkaline source, and a corrosion inhibitor. The cleaning agent comprises a detersive amount of a surfactant. The alkaline source is provided in an amount effective to provide a use solution having a pH of at least about 8. The corrosion inhibitor includes a source of aluminum ion and a source of zinc ion. Methods for using and manufacturing a warewashing detergent composition are provided.
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Citations
11 Claims
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1. A warewashing detergent composition comprising:
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(a) a cleaning agent comprising about 0.5 wt. % to about 20 wt. % surfactant based on the weight of the detersive composition; (b) an alkaline source in an amount effective to provide a use solution having a pH of at least about 8 and wherein said use solution is obtained by diluting the warewashing detergent composition with water; (c) a corrosion inhibitor in an amount sufficient for reducing corrosion and/or reducing the etching of glass, the corrosion inhibitor comprising; (i) a source of aluminum ion; (ii) a source of zinc ion, wherein the amount of the source of aluminum ion and the source of zinc ion is sufficient to provide a weight ratio of aluminum ion to zinc ion of about 6;
1 to about 1;
20; and(d) encapsulated chlorine bleaching agent. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification
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Current AssigneeEcolab USA Incorporated (Ecolab, Inc.)
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Original AssigneeEcolab, Inc.
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InventorsMan, Victor F., Lentsch, Steven E., Bartelme, Michael J., Baum, Burton M., Everson, Terence P.
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Primary Examiner(s)BOYER, CHARLES I
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Application NumberUS10/612,474Publication NumberTime in Patent Office1,231 DaysField of Search510/220, 510/224, 510/227, 510/367, 510/379, 510/441, 510/485, 510/508, 510/514, 510/521, 510/233, 510/509US Class Current510/220CPC Class CodesC11D 17/0052 Cast detergent compositionsC11D 3/0073 Anticorrosion compositionsC11D 3/0084 Antioxidants; Free-radical ...C11D 3/044 Hydroxides or basesC11D 3/046 SaltsC11D 3/06 Phosphates, including polyp...C11D 3/12 Water-insoluble compounds
