Composition and method for cleaning dishwashers
OwnerRobert Blackinventor
Life of this patent
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Abstract
A tablet or pellet for cleaning mineral deposits from the interior of a dishwasher machine is placed within the machine, and the machine is run through its normal dishwashing cycle. The pellet or tablet is formed of a mixture of a binder matrix and a chelating agent capable of carrying out chelation solubilization on the mineral deposits. The pellet or tablet withstands substantial dissolving during the initial rinse cycle or cycles, and then dissolves to provide a pH no greater than 6 during the wash cycle.
Claims19
A solid composition consisting essentially of (1) 5-95% by weight of at least one chelating agent capable of carrying out chelation solubilization of mineral deposits including calcium carbonate, (2) 95-5% by weight of a solid binder matrix material for said chelating agent, and optionally (3) one or more of a colorant, fragrance, preservative, bactericide, anti-foam agent, acid, corrosion inhibitor and wetting agent,
- said solid composition being resistant to dissolving or being sparingly soluble in water at temperatures below about 49° C., and being capable of substantially dissolving at temperatures greater than 68° C. to provide a solution having a pH no greater than 6.
Dependencies are inferred from the claim text.