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US 2014/0174467 A1Published application
Citrate salt bathroom cleaners
AssigneeEcolab USA Inc.
InventorsDale Curtis Larson, III, Mark Dennis Levitt
Life of this patent
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Abstract
A hard surface cleaning composition, namely a bathroom cleaning composition, using partially neutralized citric acid salts and/or fully neutralized ethanolamine citrate salts are disclosed. The cleaning composition is unexpectedly safe to use, environmentally-friendly and efficacious for removal of soap scum and water hardness stains at mildly acidic and/or alkaline pHs. Methods of using the same are disclosed.
Claims22
A cleaning composition comprising:
- from about 0.5 wt-% to about 65 wt-% of a partially neutralized citric acid salt,
- wherein said partially neutralized citric acid salt is between about 50-80% neutralized, and
- wherein said composition provides at least substantially-similar cleaning performance as citric acid and/or sodium citrate.
A cleaning composition comprising:
- from about 0.5 wt-% to about 65 wt-% of citric acid;
- and
- from about 1 wt-% to about 25 wt-% of an alkalinity source neutralizing agent,
- wherein said composition generates in-situ a partially neutralized citric acid salt having a degree of neutralization of between about 50% to about 80%.
1 more element
A method for cleaning bathroom surfaces and/or other hard surfaces comprising:
- contacting a soiled surface for a period of time sufficient to remove hard water soils and/or soap scum stains with an aqueous composition comprising from about 0.5 wt-% to about 65 wt-% of a partially neutralized citric acid salt, wherein said partially neutralized citric acid salt has a degree of neutralization of between about 50-80%;
- and
- removing said soils from said surface.
Dependencies are inferred from the claim text.