Hard surface cleaning compositions comprising phosphinosuccinic acid adducts and methods of use
AssigneeEcolab USA Inc.
InventorsCarter M. Silvernail, Erik C. Olson, Michel M. Lawrence, Richard D. Johnson, Steven J. Lange
Life of this patent
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Abstract
Methods employing detergent compositions effective for reducing hard water scale and accumulation on hard surfaces, namely within food, beverage and pharmaceutical applications are disclosed. The detergent compositions employ phosphinosuccinic acid adducts in combination with an alkalinity source and optionally polymers, surfactants and/or oxidizers, providing alkaline compositions having a pH between about 10 and 13.5.
Claims20
A detergent composition comprising:
- a phosphinosuccinic acid adduct comprising a phosphinosuccinic acid and mono-, bis- and oligomeric phosphinosuccinic acid adducts;
- an alkalinity source comprising an alkali metal hydroxide, metasilicate, and/or silicate;
- and
- an oxidizing agent comprising a chlorine, a hypochlorite and/or a chloramine, wherein a use solution of the detergent composition comprises about 1 ppm to about 2,000 ppm of the phosphinosuccinic acid adduct and from about 100 ppm to about 20,000 ppm of the alkalinity source and has a pH between about 10 and 13.5.
A method of reducing or preventing hardness accumulation on a hard surface in a food, beverage and/or pharmaceutical cleaning application comprising:
- contacting a hard surface within the application with an alkaline detergent composition comprising:
- a phosphinosuccinic acid adduct comprising a phosphinosuccinic acid and mono-, bis- and oligomeric phosphinosuccinic acid adducts;
- an alkalinity source comprising an alkali metal hydroxide, metasilicate, and/or silicate;
- and an oxidizing agent comprising a chlorine, a hypochlorite and/or a chloramine, wherein a use solution of the detergent composition comprises about 1 ppm to about 2,000 ppm of the phosphinosuccinic acid adduct and from about 100 ppm to about 20,000 ppm of the alkalinity source and has a pH between about 10 and 13.5;
- and
- reducing and/or preventing hardness build up on the treated hard surface.
Dependencies are inferred from the claim text.