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US 10,246,667 B2Granted
Synergistic stain removal through novel MGDA/GLDA/STPP chelator combination
AssigneeEcolab USA Inc.
InventorsTobias Foster, David W. Gohl, Sven Klose, Dirk Kullwitz, John Mansergh, Timothy Meier, Beana Pathicheril
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Abstract
The invention relates to a concentrated detergent composition comprising an alkali metal carbonate, methylglycinediacetic acid, glutamic acid N,N-diacetic acid, and alkali metal tripolyphosphate. The composition is particularly suited to remove tea and coffee soil in warewashing applications.
Claims14
A concentrated detergent composition comprising:
- an alkali metal carbonate,
- methylglycinediacetic acid,
- glutamic acid N,N-diacetic acid, and
- alkali meta tripolyphosphate;
- wherein the total concentration of methylglycinediacetic acid, glutamic acid N,N-di acetic acid, and alkali metal tripolyphosphate is 14 to 28% by weight, and the molar ratio of glutamic acid N,N-diacetic acid to the sum of methylglycinediacetic acid and alkali metal tripolyphosphate is 0.03 to 29.
2 more elements
Dependencies are inferred from the claim text.