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US 11,441,107 B2Granted
Powder and solid alkaline cleaning compositions and use thereof for removing greasy soils
AssigneeEcolab USA Inc.
InventorsDevon Beau Hammel, Grace Marie Rapp
Life of this patent
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Abstract
Powder and cast solid alkaline cleaning compositions are disclosed. Powders and/or solidification of a highly alkaline detergent composition are provided including sodium hydroxide beads and/or liquid and sodium carbonate in combination with water conditioning polymers. Methods of cleaning for soil removal of baked on, greasy soils, including those found in ovens, are also disclosed.
Claims12
A solid alkaline cleaning composition comprising:
- at least one alkali metal hydroxide alkalinity source;
- a first polycarboxylic acid polymer or salt or derivative thereof comprising a phosphorus end group according to the formula:
- wherein R1 is a phosphino (—PH(═O)(OH)) or phosphono (—P(═O)(OH)2) end group, wherein m is an integer of 0 or larger, and wherein n is an integer of 2 or larger;
- a second polycarboxylic acid polymer or salt or derivative thereof without a phosphorus end group and comprising a polyacrylic acid polymer and having a molecular weight of between about 2,500 g/mol and about 5,000 g/mol;
- and
- from about 0.1 wt-% to about 5 wt-% of a processing aid comprising a propylene glycol and/or a hexylene glycol;
- wherein the solid composition is free of sodium carbonate and surfactants.
4 more elements
Dependencies are inferred from the claim text.