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US 10,519,404 B2Granted
Synergistic stain removal through novel MGDA/GLDA/phosphate/carbonate 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:
- a) an alkali metal carbonate;
- b) from 8 to 10% by weight methylglycinediacetic acid;
- c) from 2 to 8% by weight glutamic acid N,N-diacetic acid;
- and
- d) an alkali metal tripolyphosphate, wherein the molar ratio of methylglycinediacetic acid to alkali metal tripolyphosphate is from 0.14 to 14.3.
2 more elements
Dependencies are inferred from the claim text.