Pressed, self-solidifying, solid cleaning compositions and methods of making them
AssigneeEcolab USA Inc.
InventorsRoger L. Stolte, Michael Peter Dziuk, Melissa C. Meinke, Matthew C. Porter
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Abstract
The present invention relates to a method of making a solid cleaning composition. The method can include pressing and/or vibrating a flowable solid of a self-solidifying cleaning composition. For a self-solidifying cleaning composition, pressing and/or vibrating a flowable solid determines the shape and density of the solid but is not required for forming a solid. The method can employ a concrete block machine for pressing and/or vibrating. The present invention also relates to a solid cleaning composition made by the method and to solid cleaning compositions including particles bound together by a binding agent.
Claims11
A flowable self-solidifying solid cleaning composition comprising:
- up to about 15 wt-% water;
- about 50 wt-% to about 70 wt-% sodium carbonate;
- about 1 wt-% to about 5 wt-% sodium bicarbonate;
- about 10 wt-% to about 30 wt-% sequestrant, wherein the sequestrant comprises a polymeric polycarboxylate;
- about 0.1 wt-% to about 5 wt-% methylglycinediacetic acid or salt thereof;
- and
- about 1 wt-% to about 5 wt-% sodium metasilicate;
- wherein the solid cleaning composition is a flowable self-solidifying solid,
- wherein the composition comprises less than about 0.5% phosphorous-containing compounds, and
- wherein the composition is free of nitrilotriacetic acid and free of an active oxygen compound.
A flowable self-solidifying cleaning composition comprising:
- up to about 15 wt-% water;
- about 50 wt-% to about 70 wt-% sodium carbonate;
- about 1 wt-% to about 5 wt-% sodium bicarbonate about 10 wt-% to about 30 wt-% sequestrant, wherein the sequestrant comprises a polymeric polycarboxylate;
- about 0.1 wt-% to about 5 wt-% methylglycinediacetic acid or salt thereof;
- and
- about 1 wt-% to about 5 wt-% sodium metasilicate;
- wherein the solid cleaning composition is a flowable self-solidifying solid, and
- wherein the composition comprises less than about 0.5 wt-% phosphorous-containing compounds and less than about 0.5 wt-% nitrilotriacetic acid and is free of an active oxygen compound.
Dependencies are inferred from the claim text.