Cleaning composition including a terpolymer containing maleic acid, vinyl acetate, and alkyl acrylate monomers for enhanced scale control
AssigneeEcolab USA Inc.
InventorsErik C. Olson, Carter Silvernail, Stephen Christensen, Lauren M. Hunker, Brandon G. Beyer, Kerrie E. Walters
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Abstract
The present invention is related to a cleaning composition including at least one alkalinity source and a biodegradable terpolymer including maleic acid, vinyl acetate and alkyl acrylate segments or monomers for controlling scale. The diluted for use solution has a pH range of between about 9.5 and about 14.
Claims47
A cleaning composition for preventing scale accumulation or encrustation on various surfaces, the cleaning composition comprising:
- an alkalinity source in an amount of between approximately 10% and approximately 90% by weight of the cleaning composition, wherein the alkalinity source is selected from the group consisting of alkali metal carbonate, alkali metal silicate, alkali metal hydroxide, or combinations thereof and wherein the alkali metal hydroxide is present in a greater amount by weight than the alkali metal carbonate and alkali metal silicate;
- and
- a polymer comprising maleic acid, vinyl acetate and alkyl acrylate monomers, the polymer in an amount equal to or greater than about 0.1% by weight of the cleaning composition.
The cleaning composition of claim 14, wherein the terpolymer has a molecular weight between about 500 g/mol and 5,000 g/mol.
A method of preventing scale accumulation during a wash cycle, the method comprising:
- i. diluting a detergent composition with water at a dilution ratio of between about 1:10 and about 1:10,000 to form a use solution, wherein the detergent composition comprises an alkalinity source, a surfactant system and a polymer comprising maleic acid, vinyl acetate and alkyl acrylate monomers;
- and
- ii. contacting the use solution with a substrate to be cleaned;
- iii. wherein a temperature of the wash cycle is between about 140 degrees and 185 degrees Fahrenheit;
- iv. wherein the alkalinity source is in an amount of between approximately 10% and approximately 90% by weight of the detergent composition;
- v. wherein the polymer is in an amount equal to or greater than about 0.1% by weight of the detergent composition;
- vi. wherein the use solution has a pH between about 9.5 and 14.
A detergent composition for preventing scale accumulation on various surfaces, the detergent composition comprising:
- i. an alkalinity source in an amount of between approximately 10% and approximately 90% by weight of the cleaning composition, wherein the alkalinity source is selected from the group consisting of alkali metal carbonate, alkali metal silicate, alkali metal hydroxide, or combinations thereof and wherein the alkali metal hydroxide is present in a greater amount by weight than the alkali metal carbonate and alkali metal silicate;
- ii. a polymer comprising maleic acid, vinyl acetate and alkyl acrylate monomers, the polymer in an amount equal to or greater than about 0.1% by weight of the detergent composition;
- iii. a co-polymer comprising a polycarboxylic acid in an amount equal to or greater than about 0.1% by weight of the detergent composition, wherein the polycarboxylic acid is selected from the group consisting of polyacrylic acid, polymethacrylic acid, polymaleic acid homopolymers, copolymer of acrylic acid, copolymer of methacrylic acid, copolymer of maleic acid, acrylic acid, methacrylic acid, maleic acid terpolymers, or combinations thereof;
- and
- iv. a surfactant system.
Dependencies are inferred from the claim text.