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US 12,630,789 B2Granted
Detergent composition comprising phosphinosuccinic acid adducts and methods of use
AssigneeEcolab USA Inc.
InventorsCarter M. Silvernail, Erik C. Olson
Life of this patent
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Abstract
Detergent compositions effective for controlling hard water scale accumulation are disclosed. Detergent compositions employing phosphinosuccinic acid and mono-, bis- and oligomeric phosphinosuccinic acid (PSO) derivatives with alkali metal carbonate and/or alkali metal hydroxide reduce hard water scale accumulation on treated surfaces at alkaline conditions between about pH of 9 and 12.5. Methods employing the detergent compositions and preventing hard water scale accumulation are also provided.
Claims19
A detergent use solution composition comprising:
- a phosphinosuccinic acid derivative, wherein the phosphinosuccinic acid derivative is a combination of phosphinosuccinic acid and mono-, bis-and oligomeric phosphinosuccinic acid adducts;
- and
- from about 100 ppm to about 1500 ppm of an alkalinity source comprising an alkali metal hydroxide, carbonate, metasilicate, and/or silicate, wherein the detergent use solution composition has a pH greater than about 9, and does not contain a bleaching agent.
A detergent use solution composition comprising:
- a phosphinosuccinic acid derivative, wherein the phosphinosuccinic acid derivative is a combination of phosphinosuccinic acid and mono-, bis-and oligomeric phosphinosuccinic acid adducts;
- from about 100 ppm to about 1500 ppm of an alkalinity source comprising an alkali metal hydroxide, carbonate, metasilicate, and/or silicate;
- and
- a surfactant, wherein the detergent use solution composition has a pH greater than about 9, and does not contain a bleaching agent.
1 more element
Dependencies are inferred from the claim text.