Patents

Ecolab Patents Coffee Stain Removal with Novel Oxidizer and Chelant Combination

The ware washing formulation minimizes the use of chelants.

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By: Christine Esposito

Editor-in-Chief

US 12,054,694 B2 (David Dotzauer, John Mansergh, Krista Kutz Otting, Tobias Neil Foster); Ecolab USA patented a method of using a detergent composition that can remove tea and coffee soil. The detergent solution consisting of water; alkali metal carbonate; a chelant that is methylglycinediacetic acid and optionally glutamic acid N,N-diacetic acid and/or alkali metal tripolyphosphate; alkali metal percarbonate; a peroxidation catalyst according to formula (XIX) or formula (XX) show below: US 1...

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