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US 2019/0316063 A1Published application
Detergent composition comprising phosphinosuccinic acid adducts and methods of use
AssigneeEcolab USA Inc.
InventorsCARTER M. SILVERNAIL, ERIK C. OLSON
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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 had 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.
Claims20
A detergent composition comprising:
- between about 0.01 wt-% and about 40 wt-% of a phosphinosuccinic acid derivative comprising a phosphinosuccinic acid and mono-, bis- and oligomeric phosphinosuccinic acid adducts;
- and
- between about 1 wt-% and about 90 wt-% of an alkalinity source comprising an alkali metal hydroxide, carbonate, metasilicate, and/or silicate;
- wherein the composition contains a greater weight percentage of the alkalinity source than the phosphinosuccinic acid derivative;
- and
- wherein a use solution of the detergent composition has a pH greater than 9;
- and the composition does not contain a bleaching agent.
4 more elements
Dependencies are inferred from the claim text.