Back to results
US 6,583,094 B1Granted
Stable solid block detergent composition
AssigneeEcolab Inc.
InventorsSteven E. Lentsch, Keith E. Olson, G. Jason Wei, Victor F. Man
Life of this patent
Estimating the term…
Abstract
The dimensionally stable alkaline solid block warewashing detergent uses an E-form binder forming a solid comprising a sodium carbonate source of alkalinity, a sequestrant, a surfactant package and other optional material. The solid block is dimensionally stable and highly effective in removing soil from the surfaces of dishware in the institutional and industrial environment. The E-form hydrate comprises an organic phosphonate and a hydrated carbonate.
Claims41
A method of manufacturing detergent composition, which method comprises:
- (i) combining the following components to form a blended mass:
- (a) about 20 to 80 wt % of an alkali metal carbonate;
- (b) about 1 wt % to 30 wt % of an organic phosphonate;
- and
- (c) about 0.01 to 1.3 mole of water per mole of carbonate;
- and
- (ii) forming the blended mass into a composition comprising non-hydrated alkali metal carbonate and a binding agent comprising a mono-hydrated alkali metal carbonate and organic phosphonate, wherein the mole ratio of alkali metal carbonate to organic phosphonate in the binding agent is in range of about 3:1 to about 7:1 and the composition is substantially free of a source of alkalinity other than an alkali metal carbonate.
4 more elements
A detergent composition comprising:
- (a) about 20 to 65 wt % of alkali metal carbonate;
- (b) about 1 wt % to 30 wt % of an organic phosphonate;
- and
- (c) about 0.01 to 1.3 mole of water per mole of carbonate;
- wherein the composition comprises non-hydrated alkali metal carbonate and a binding agent comprising mono-hydrated alkali metal carbonate and organic phosphonate, and the mole ratio of alkali metal carbonate to organic phosphonate in the binding agent is in range of about 3:1 to about 7:1, and the composition is substantially free of a second source of alkalinity.
2 more elements
A solid detergent comprising:
- (a) about 20 to 80 wt % of a Na2CO3;
- (b) about 1 wt % to 30 wt % of an organic phosphonate;
- (c) an effective amount of a chelating/sequestering agent including a condensed phosphate;
- and
- (d) about 0.9 to about 1.3 moles of water per each mole of Na2CO3;
- wherein the detergent comprises a binding agent comprising an organic phosphonate and sodium carbonate monohydrate, and the mole ratio of sodium carbonate to organic phosphonate in the binding agent is in range of about 3:1 to about 7:1, and the detergent is substantially free of a source of alkalinity other than Na2CO3.
3 more elements
Dependencies are inferred from the claim text.