Polymer-containing cleaning compositions and methods of production and use thereof
View Patent ↗The present invention provides detergent compositions, essentially free of peroxygen or chlorine bleach compounds, containing one or more surfactants, one or more builders, one or more enzymes and one or more low MW (e.g., 0.8-25 kDa) polyethyleneimine (PEI) polymers or salts thereof, and methods of producing such compositions. The compositions of the invention provide certain benefits in cleaning of textiles (particularly fabrics including clothing), hard surfaces and dishware and utensils, including enhanced removal of certain difficult-to-remove stains such as chocolate pudding and grass, as well as of polyphenolic stains such as cherry juice, blueberry juice, red wine, tea and coffee. The invention also provides methods of using these compositions in laundry, hard surface cleaning and dishwashing applications.
1. A detergent composition comprising:
(a) from about 1% to about 75% by weight of a detergent surfactant selected from the group consisting of anionic surfactants, nonionic surfactants, zwitterionic surfactants, ampholytic surfactants, cationic surfactants, and mixtures thereof;
(b) from about 1% to about 80% by weight of a detergency builder;
(c) from about 0.001% to about 5% by weight of an enzyme; and
(d) from about 0.5% to about 1% by weight a polyethyleneimine (PEI), a polyethyleneimine salt, or mixtures thereof,
wherein said polyethyleneimine or salt thereof has an average molecular weight of between about 800 daltons and 25 kilodaltons and a charge density of between 16-20 meq/g,
wherein said composition has an enhanced ability to remove a stain selected from the group consisting of chocolate pudding, grass, and a polyphenolic stain, relative to compositions that do not comprise a PEI having a molecular weight of between 800 daltons and 25 kilodaltons and a charge density of between 16-20 meq/g, and
wherein said composition is substantially free of phosphorous-based, peroxygen or chlorine bleach compounds.
2. The composition of claim 1 wherein the detergency builder component is selected from the group consisting of zeolite; alkali metal silicates; alkali metal carbonates; alkali metal phosphates; alkali metal polyphosphates; alkali metal phosphonates; alkali metal polyphosphonic acids; C 8 -C 18 alkyl monocarboxylic acids, polycarboxylic acids, alkali metal, ammonium or substituted ammonium salts thereof; and mixtures thereof.
3. The composition of claim 1 wherein polyethyleneimine component is selected from the group consisting of polyethyleneimines, polyethyleneimine salts or mixtures thereof, wherein each of the polyethyleneimines or salts thereof have a molecular weight of between about 800 to about 10,000 daltons.
4. The composition of claim 1 wherein the surfactant component comprises a nonionic surfactant selected from the group consisting of C 10 -C 20 alcohols ethoxylated with an average of from about 4 to about 10 moles of ethylene oxide per mole of alcohol, alkyl polyglycosides, alkyl aldonamides, alkyl aldobionamides, alkyl glycamides and mixtures thereof.
5. The composition of claim 1 wherein the surfactant component comprises at least one α-sulfonated fatty acid methyl ester.
6. The composition of claim 5 , wherein the α-sulfonated fatty acid methyl ester is a mixture of methyl ester sulfonates.
7. The composition of claim 6 , wherein the mixture of methyl ester sulfonates comprises a methyl ester sulfonate selected from the group consisting of a C 12 -methyl ester sulfonate, a C 14 -methyl ester sulfonate, a C 16 -methyl ester sulfonate and a C 18 -methyl ester sulfonate.
8. The composition of claim 6 , wherein the mixture of methyl ester sulfonates comprises a C 16 -methyl ester sulfonate and a C 18 -methyl ester sulfonate.
9. A laundry detergent composition comprising the composition of claim 1 and one or more additional detergent components.
10. The laundry detergent composition of claim 9 , wherein said composition is a liquid composition.
11. The laundry detergent composition of claim 9 , wherein said composition is a powdered composition.
12. The laundry detergent composition of claim 9 , wherein said composition is a gel composition.
13. A hard surface cleaning composition comprising the composition of claim 1 and one or more additional cleaning components.
14. The hard surface cleaning composition of claim 13 , wherein said composition is a liquid composition.
15. The hard surface cleaning composition of claim 13 , wherein said composition is a spray composition.
16. The hard surface cleaning composition of claim 13 , wherein said composition is a gel composition.
17. A dishware cleaning composition comprising the composition of claim 1 and one or more additional dishware cleaning components.
18. The dishware cleaning composition of claim 17 , wherein said composition is a liquid composition.
19. The dishware cleaning composition of claim 17 , wherein said composition is a gel composition.
20. The dishware cleaning composition of claim 17 , wherein said one or more additional dishware cleaning components is selected from the group consisting of a rinse aid, a surfactant, a builder, and an enzyme.
21. The composition of claim 1 , wherein said composition is free of inorganic phosphates or polyphosphates.
22. The composition of claim 1 , wherein said composition has a pH of from about 6 to about 12 at 1% by weight concentration in water.
23. The composition of claim 1 , wherein said composition demonstrates an enhanced ability to remove chocolate pudding stains or grass stains.
24. A method for laundering fabrics comprising the agitation of said fabrics in an aqueous solution containing from about 0.01% to about 5% by weight of the composition of claim 1 or of the laundry detergent composition of claim 9 .
25. A method for cleaning a hard surface, comprising contacting said hard surface with an aqueous solution containing from about 0.01% to about 5% by weight of the composition of claim 1 or of the hard surface cleaning composition of claim 13 .
26. A method for cleaning dishware, comprising contacting said dishware with an aqueous solution containing from about 0.01% to about 5% by weight of the composition of claim 1 or of the dishware cleaning composition of claim 17 .