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US 9,790,456 B2Granted
Citrate salt bathroom cleaners
AssigneeEcolab USA Inc.
InventorsDale Curtis Larson, III, Mark Dennis Levitt
Life of this patent
Estimating the term…
Abstract
A hard surface cleaning composition, namely a bathroom cleaning composition, using fully neutralized ethanolamine citrate salts is 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.
Claims12
A cleaning composition consisting of:
- from about 5 wt-% to about 65 wt-% of a fully neutralized ethanolamine citrate salt;
- from about 5 wt-% to 50 wt-% of a nonionic surfactant;
- from about 5 wt-% to about 50 wt-% of water;
- and
- from about 0 wt-% to 10 wt-% of an additional functional ingredient,
- wherein the composition has a pH between about 7-11 in a concentrate composition and a pH between about 7-10 in a use solution composition,
- wherein said composition provides improved stain removal from any conventional bathroom surfaces compared to sodium citrate or another monovalent alkali metal citrate at an equivalent pH;
- and
- wherein the additional functional ingredient is selected from the group consisting of a preservative, fragrance, dye, biocide, antimicrobial, solvent, and combinations thereof.
6 more elements
A cleaning composition consisting of:
- from about 5 wt-% to about 65 wt-% of citric acid;
- an ethanolamine neutralizing agent;
- from about 5 wt-% to 50 wt-% of a nonionic surfactant;
- from about 5 wt-% to about 50 wt-% of water;
- and
- from about 0 wt-% to 10 wt-% of an additional functional ingredient,
- wherein the composition has a pH between about 7-11 in a concentrate composition and a pH between about 7-10 in a use solution composition, and
- wherein said composition generates in-situ a fully neutralized ethanolamine citrate salt, said composition provides improved stain removal from any conventional bathroom surfaces compared to sodium citrate or another monovalent alkali metal citrate at an equivalent pH;
- and
- wherein the additional functional ingredient is selected from the group consisting of a preservative, fragrance, dye, biocide, antimicrobial, solvent, and combinations thereof.
7 more elements
A method for cleaning bathroom surfaces and/or other hard surfaces comprising:
- contacting a soiled surface in any conventional bathroom for a period of time sufficient to remove hard water soils and/or soap scum stains with an aqueous composition consisting of from about 0.5 wt-% to about 65 wt-% of a fully neutralized ethanolamine citrate salt, from about 5 wt-% to 50 wt-% of a nonionic surfactant, from about 5 wt-% to about 50 wt-% of water;
- and from about 0 wt-% to 10 wt-% of an additional functional ingredient, wherein the composition has a pH between about 7-11 in a concentrate composition and a pH between about 7-10 in a use solution composition;
- and
- removing said soils from said surface,
- wherein the additional functional ingredient is selected from the group consisting of a preservative, fragrance, dye, biocide, antimicrobial, solvent, and combinations thereof.
2 more elements
Dependencies are inferred from the claim text.