Compositions and methods for removing soil from surfaces

Patent metadata

Field	Value
Publication number	US-12221594-B2
Application number	US-202218068268-A
Country	US
Kind code	B2
Filing date	Dec 19, 2022
Priority date	Oct 24, 2013
Publication date	Feb 11, 2025
Grant date	Feb 11, 2025

Abstract

The present invention relates to an aqueous composition for removing soils from a surface to be cleaned, formed from water, a detergent mixture and a rinse aid, wherein the detergent mixture comprises a peroxidation catalyst and wherein the rinse aid comprises an oxygen source. Such a composition may provide a more effective cleaning behaviour. The present invention further relates to a method for removing soil from a surface to be cleaned comprising applying to the surface to be cleaned a composition according to the invention.

First claim

What is claimed is:

1. A cleaning system for removing soil from a surface during a warewash cleaning cycle comprising:
a cleaning composition comprising:
(a) a detergent mixture comprising about ≥20 wt. % to ≤80 wt. % of an alkalinity source, about ≥1 wt. % to ≤50 wt. % of one or more chelators, about ≥1 wt. % to ≤20 wt. % of a water conditioning agent, about ≥0.00001 wt. % to ≤1.0 wt. % of a peroxidation catalyst, and about ≥0.1 wt. % to ≤20 wt. % of a defoamer; and
(b) a first rinse aid comprising about ≥20 wt. % to ≤50 wt. % of an oxygen source, about ≥1 wt. % to ≤15 wt. % of a hydrotrope, about ≥1 wt. % to ≤15 wt. % of a surfactant, and about ≥1 wt. % to ≤15 wt. % of one or more additional chelators; and
a rinse step composition comprising:
(a) a second rinse aid comprising about ≥10 wt. % to ≤60 wt. % of an oxygen source, about ≥0.5 wt. % to ≤50 wt. % of a hydrotrope, about ≥0.5 wt. % to ≤50 wt. % of a surfactant, and about ≥0.5 wt. % to ≤50 wt. % of one or more additional chelators;
wherein the cleaning system removes soil from the surface during a wash cycle of less than 10 minutes, and wherein the detergent mixture, first rinse aid, and rinse step composition are kept separate prior to use of the cleaning system.

2. The cleaning system of claim 1 , wherein the cleaning composition removes soil from the surface in a time range of between about ≥20 seconds to ≤240 seconds.

3. The cleaning system of claim 1 , wherein the rinse step composition removes soil from and/or rinses the surface in a time range of between about ≥5 seconds to ≤120 seconds.

4. The cleaning system of claim 1 , wherein the peroxidation catalyst is MnTACN, MnDTNE, a bispidon ligand, FeTamL, Mn(II)oxalate, 1,2:4,5-Di-O-isopropylidene-β-D-erythro-2,3-hexodiulo-2,6-pyranose, or a Mn bleaching catalyst.

5. The cleaning system of claim 1 , wherein the oxygen source comprises a peroxygen compound.

6. The cleaning system of claim 5 , wherein the peroxygen compound is a peroxide and/or a percarboxylic acid.

7. The cleaning system of claim 1 , wherein the alkalinity source is an alkali metal hydroxide, a carbonate, a silicate, or a combination thereof.

8. The cleaning system of claim 7 , wherein the alkalinity source is an alkali metal hydroxide.

9. The cleaning system of claim 1 , wherein the alkalinity source is sodium hydroxide; the chelant is a phosphonate, sodium tripolyphosphate, methylglycinediacetic acid, or a combination thereof; the water conditioning agent is a polyacrylic acid; the defoamer is an ethylene oxide/propylene oxide block copolymer; the peroxidation catalyst is Mn(II) oxalate; the oxygen source is hydrogen peroxide; and the hydrotrope is sodium cumene sulfonate.

10. The cleaning system of claim 1 , wherein the cleaning composition is diluted to form an aqueous solution, and wherein the aqueous solution comprises the detergent mixture at a concentration of ≥0.1 g/L to ≤10 g/L and the first rinse aid at a concentration of ≥0.000001 g/L to ≤0.1 g/L.

11. A steady state cleaning system for removing soil from a surface during a warewash cleaning cycle comprising:
a cleaning composition comprising:
(a) a detergent mixture comprising about ≥20 wt. % to ≤80 wt. % of an alkalinity source, about ≥1 wt. % to ≤50 wt. % of one or more chelators, about ≥1 wt. % to ≤20 wt. % of a water conditioning agent, about ≥0.00001 wt. % to ≤1.0 wt. % of a peroxidation catalyst, and about ≥0.1 wt. % to ≤20 wt. % of a defoamer; and
(b) a first rinse aid comprising about ≥20 wt. % to ≤50 wt. % of an oxygen source, about ≥1 wt. % to ≤15 wt. % of a hydrotrope, about ≥1 wt. % to ≤ 15 wt. % of a surfactant, and about ≥1 wt. % to ≤15 wt. % of one or more additional chelators; and

a rinse step composition comprising:
(a) a second rinse aid comprising about ≥10 wt. % to ≤60 wt. % of an oxygen source, about ≥0.5 wt. % to ≤50 wt. % of a hydrotrope, about ≥0.5 wt. % to ≤ 50 wt. % of a surfactant, and about ≥0.5 wt. % to ≤50 wt. % of one or more additional chelators;

at least one subsequent cleaning composition comprising:
(a) a subsequent detergent mixture comprising about ≥20 wt. % to ≤80 wt. % of an alkalinity source, about ≥1 wt. % to ≤50 wt. % of one or more chelators, about ≥1 wt. % to ≤20 wt. % of a water conditioning agent, about ≥0.00001 wt. % to ≤ 1.0 wt. % of a peroxidation catalyst, and about ≥0.1 wt. % to ≤20 wt. % of a defoamer; and
(b) a subsequent first rinse aid comprising about ≥20 wt. % to ≤50 wt. % of an oxygen source, about ≥1 wt. % to ≤15 wt. % of a hydrotrope, about 1 wt. % to ≤15 wt. % of a surfactant, and about ≥1 wt. % to ≤15 wt. % of one or more additional chelators; and

at least one subsequent rinse step composition comprising:
(a) a subsequent second rinse aid comprising about ≥10 wt. % to ≤60 wt. % of an oxygen source, about ≥0.5 wt. % to ≤50 wt. % of a hydrotrope, about ≥0.5 wt. % to ≤50 wt. % of a surfactant, and about ≥0.5 wt. % to ≤50 wt. % of one or more additional chelators;

wherein the steady state cleaning system removes soil from the surface during one or more wash cycles, wherein each wash cycle lasts less than 10 minutes, and wherein the detergent mixture, first rinse aid, and rinse step composition are kept separate prior to use of the cleaning system.

12. The cleaning system of claim 11 , wherein the cleaning composition removes soil from the surface in a time range of between about ≥20 seconds to ≤240 seconds.

13. The cleaning system of claim 11 , wherein the rinse step composition removes soil from and/or rinses the surface in a time range of between about ≥5 seconds to ≤120 seconds.

14. The cleaning system of claim 11 , wherein the peroxidation catalyst is MnTACN, MnDTNE, a bispidon ligand, FeTamL, Mn(II)oxalate, 1,2:4,5-Di-O-isopropylidene-β-D-erythro-2,3-hexodiulo-2,6-pyranose, or a Mn bleaching catalyst.

15. The cleaning system of claim 11 , wherein the oxygen source comprises a peroxygen compound.

16. The cleaning system of claim 15 , wherein the peroxygen compound is a peroxide and/or a percarboxylic acid.

17. The cleaning system of claim 11 , wherein the alkalinity source is an alkali metal hydroxide, a carbonate, a silicate, or a combination thereof.

18. The cleaning system of claim 17 , wherein the alkalinity source is an alkali metal hydroxide.

19. The cleaning system of claim 11 , wherein the cleaning system comprises ≥25 subsequent cleaning compositions.

20. The cleaning system of claim 11 , wherein the cleaning system comprises at least 50 subsequent cleaning compositions.

Assignees

• Ecolab Usa Inc

Inventors

• Foster Tobias Neil
• Kullwitz Dirk
• Pathicheril Beana

Classifications

• C11D2111/14

  Hard surfaces · CPC title

• B08B3/042

  the loose articles or bulk material travelling gradually through a drum or other container, e.g. by helix or gravity · CPC title

• C11D3/3945

  Organic per-compounds (C11D3/3902 takes precedence) · CPC title

• C11D3/10

  Carbonates {; Bicarbonates} · CPC title

• C11D1/66

  Non-ionic compounds {(C11D1/002, C11D1/004, C11D1/008 take precedence)} · CPC title