Stable solid block detergent composition
First Claim
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1. 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.
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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.
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Citations
41 Claims
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1. A method of manufacturing detergent composition, which method comprises:
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(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.- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A detergent composition comprising:
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(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.- View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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33. A solid detergent comprising:
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(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.- View Dependent Claims (34, 35, 36, 37, 38, 39, 40, 41)
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Specification