Phosphorus free low temperature ware wash detergent for reducing scale build-up
AssigneeEcolab USA Inc.
InventorsErin Dahlquist Howlett, Carter Martin Silvernail, Steven E. Lentsch, Terrence P. Everson
Life of this patent
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Abstract
Phosphorus-free detergent compositions are provided. Detergent compositions including an aminocarboxylate, water conditioning agent, source of alkalinity and water beneficially do not require the use of additional surfactants and/or polymers to provide suitable detergency and prevent scale build-up on treated surfaces. The detergent compositions are used with a sanitizer to employ the phosphorus-free detergent compositions for use as low temperature ware wash detergents that beneficially reduce scale build-up. Methods of employing the phosphorus-free detergent compositions are also provided.
Claims19
A concentrated alkaline detergent composition consisting of:
- from about 0.1-15 wt-% of an aminocarboxylate;
- from about 0.1-15 wt-% of a water conditioning polymer;
- from about 50-60 wt-% of an alkalinity source;
- from about 20-80 wt-% of water, and
- optionally an additional functional ingredient(s) comprising defoaming agents, anti-redeposition agents, bleaching agents, solubility modifiers, dispersants, rinse aids, metal protecting agents, stabilizing agents, sequestrants, corrosion inhibitors, sanitizing agents, antimicrobial agents, fragrances, dyes, thickeners, hydrotropes or couplers, buffers, solvents, and combinations thereof, and
- wherein the ratio of the aminocarboxylate to the water conditioning polymer is from about 1:5 to about 5:1 to provide synergistic reduction or elimination of scale build-up on treated surfaces, and
- wherein the detergent composition is free of phosphorus.
A concentrate alkaline detergent composition consisting of:
- from about 1-15 wt-% of methylglycinediacetic acid;
- from about 0.1-15 wt-% of a water conditioning polymer;
- from about 50-60 wt-% of sodium hydroxide;
- and
- from about 30-80 wt-% of water, and
- optionally an additional functional ingredient(s) comprising defoaming agents, anti-redeposition agents, bleaching agents, solubility modifiers, dispersants, rinse aids, metal protecting agents, stabilizing agents, sequestrants, corrosion inhibitors, sanitizing agents, antimicrobial agents, fragrances, dyes, thickeners, hydrotropes or couplers, buffers, solvents, and combinations thereof, and
- wherein the ratio of the methylglycinediacetic acid to the water conditioning polymer is from about 1:5 to about 5:1 to provide synergistic reduction or elimination of scale build-up on treated surfaces,
- and wherein the detergent composition is free of phosphorus.
Dependencies are inferred from the claim text.