CLEANING COMPOSITIONS WITH WATER INSOLUBLE CONVERSION AGENTS AND METHODS OF MAKING AND USING THEM
First Claim
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1. A solid cleaning composition comprising:
- (a) about 1 to about 50 wt % of a conversion agent comprising a water insoluble compound; and
(b) about 10 to about 95 wt % of an alkalinity source, wherein the conversion agent causes calcium hardness ions in a water source to substantially precipitate in a non-calcite crystalline form.
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Abstract
The present invention relates to cleaning compositions comprising conversion agents and methods of using them. The conversion agents of the present invention comprise water insoluble compounds such as metal oxides, metal hydroxides, and combinations thereof. The compositions can be substantially free of a builder, e.g., a chelating agent, sequestrant, and/or threshold agent, while still achieving effective soil removal.
112 Citations
49 Claims
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1. A solid cleaning composition comprising:
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(a) about 1 to about 50 wt % of a conversion agent comprising a water insoluble compound; and (b) about 10 to about 95 wt % of an alkalinity source, wherein the conversion agent causes calcium hardness ions in a water source to substantially precipitate in a non-calcite crystalline form. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A solid cleaning composition comprising:
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about 3 to about 30 wt % of a conversion agent comprising a water insoluble compound; and about 5 to about 90 wt % of an ingredient selected from the group consisting of a salt, a detergent filler, a surfactant, a processing aid, water and combinations thereof, wherein the conversion agent causes calcium hardness ions in a water source to substantially precipitate in a non-calcite crystalline form. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
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36. A method of cleaning an article, the method comprising:
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(a) providing a solid cleaning composition comprising; (i) about 1 to about 50 wt % of a conversion agent comprising a water insoluble compound; and (ii) about 10 to about 95 wt % of an alkalinity source, wherein the conversion agent causes calcium hardness ions in a water source to substantially precipitate in a non-calcite crystalline form; (b) dissolving at least a portion of the solid cleaning composition to create a use solution; and (c) contacting the article with the use solution, such that the article is cleaned. - View Dependent Claims (37, 38, 39, 40, 41, 42)
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43. A method of cleaning an article, the method comprising:
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(a) providing a solid cleaning composition consisting essentially of; (i) about 3 to about 30 wt % of a conversion agent comprising a water insoluble compound; and (ii) about 5 to about 90 wt % of an ingredient selected from the group consisting of a salt, a detergent filler, a surfactant, a processing aid, water and combinations thereof, wherein the conversion agent causes calcium hardness ions in a water source to substantially precipitate in a non-calcite crystalline form; (b) dissolving at least a portion of the solid cleaning composition to create a use solution; and (c) contacting the article with the use solution, such that the article is cleaned. - View Dependent Claims (44, 45, 46, 47, 48, 49)
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Specification