Synergistic surfactant package for cleaning of food and oily soils

Patent metadata

Field	Value
Publication number	US-12084629-B2
Application number	US-202318164847-A
Country	US
Kind code	B2
Filing date	Feb 6, 2023
Priority date	Oct 26, 2018
Publication date	Sep 10, 2024
Grant date	Sep 10, 2024

Abstract

The disclosure relates a surfactant package for use in hard surface cleaning compositions, preferably floor cleaning compositions which pair an anionic linear alkyl sulfonate surfactant and a nonionic surfactant in a ratio of 1:1 to 9:1. This combination provides for synergistic cleaning of both proteinaceous food soils (red soils) and hydrocarbon-based oily soils (black soils) while also reducing foam produced by the composition. Synergistic nonionic surfactants include EO/PO alcohol alkoxylates or EO/PO fatty alcohol surfactants with a propylene oxide to ethylene oxide to ratio of greater than 1.

First claim

What is claimed is:

1. A surfactant package for hard surface cleaning compositions that is effective on both food and oily soils comprising:
one or more anionic linear alkyl sulfonate surfactants; and
one or more nonionic ethoxylated propoxylated alcohol surfactants or ethoxylated propoxylated fatty alcohol surfactants, said nonionic surfactant with a ratio of propoxylation to ethoxylation of greater than 1,
wherein the ratio of anionic surfactant to nonionic surfactant is between 6:1 and 9:1, and
wherein the surfactant package is free of a short chain alkyl benzene hydrotrope.

2. A surfactant package for hard surface cleaning compositions that is effective on both food and oily soils comprising:
one or more anionic linear alkyl sulfonate surfactants; and
one or more nonionic alcohol alkoxylate surfactant or nonionic fatty alcohol surfactants, said nonionic surfactants having a cloud point that is below 23° C.,
wherein the ratio of anionic surfactant to nonionic surfactant is between 2-46:1 and 9:1, and
wherein the surfactant package is free of a short chain alkyl benzene hydrotrope.

3. The surfactant package of claim 1 , wherein said linear alkyl sulfonate surfactant is linear alkyl benzene sulfonate.

4. The surfactant package of claim 1 wherein said nonionic surfactant has a ratio of propoxylation to ethoxylation of 2:1.

5. The surfactant package of claim 4 wherein said nonionic surfactant is a C12 to C14 fatty alcohol with (EO)3(PO)6.

6. The surfactant package of claim 1 wherein said nonionic surfactant is an alcohol alkoxylate.

7. The surfactant package of claim 1 wherein said nonionic surfactant is a reverse EO/PO block copolymer.

8. The surfactant package of claim 1 wherein the surfactant package does not include alpha olefin sulfonate (AOS).

9. The surfactant package of claim 1 wherein the surfactant package does not include sodium lauryl sulfate (SLS).

10. The surfactant package of claim 1 wherein the surfactant package does not include a secondary alkane sulfonate (SAS).

11. The surfactant package of claim 1 wherein said surfactant package includes 2 or more nonionic surfactant selected from the group consisting of ethoxylated propoxylated alcohol surfactants or ethoxylated propoxylated fatty alcohol surfactants.

12. The surfactant package of claim 1 wherein said surfactant package includes 2 or more linear alkyl sulfonates.

13. A hard surface or floor cleaning composition comprising the surfactant package of claim 1 .

14. A composition comprising the surfactant package of claim 1 .

15. The hard surface or floor cleaning composition of claim 13 further comprising one or more of an alkalinity source, a stabilizer, and/or a pH adjuster.

16. The hard surface or floor cleaning composition of claim 13 wherein said composition has a pH of about 7 to about 9.

17. The hard surface or floor cleaning composition of claim 13 wherein said composition is a solid.

18. The hard surface or floor cleaning composition of claim 13 wherein said composition is a pressed solid.

19. The hard surface or floor cleaning composition of claim 13 wherein said composition is used in an automatic cleaning unit.

20. The hard surface or floor cleaning composition of claim 13 wherein said composition is used in an abrasion suction automatic cleaning unit.

21. A method of cleaning a floor or hard surface comprising:
contacting a composition according to claim 1 with a floor or hard surface; and thereafter removing the composition from said surface.

22. The method of claim 21 , wherein the contacting of the composition is for a sufficient period of time to emulsify food and oily soils.

23. The method of claim 21 , further comprising rinsing said surface.

24. The method of claim 21 , further comprising scrubbing the surface.

25. The method of claim 24 , further comprising rinsing the surface with water after scrubbing.

26. A method of making a cleaning composition comprising combining the surfactant package of claim 1 with one or more additional functional ingredients to form a cleaning composition.

27. The method of claim 26 wherein said combined composition is pressed to form a solid.

Assignees

• Ecolab Usa Inc

Inventors

• Dahlquist Howlett Erin Jane
• Mueggenborg Renee Elizabeth
• Molinaro Matthew Paul

Classifications

• C11D2111/14

  Hard surfaces · CPC title

• C11D17/006

  containing mainly surfactants, but no builders, e.g. syndet bar · CPC title

• C11D1/8305

  containing a combination of non-ionic compounds differently alcoxylised or with different alkylated chains · CPC title

• C11D1/722

  Ethers of polyoxyalkylene glycols having mixed oxyalkylene groups; {Polyalkoxylated fatty alcohols or polyalkoxylated alkylaryl alcohols with mixed oxyalkylele groups (C11D1/721 takes precedence)} · CPC title

• C11D1/72

  Ethers of polyoxyalkylene glycols · CPC title