Nonionic surfactant-based liquid detergent compositions containing a manganese bleach catalyst

Patent metadata

Field	Value
Publication number	US-12331268-B2
Application number	US-202117457849-A
Country	US
Kind code	B2
Filing date	Dec 6, 2021
Priority date	Mar 19, 2018
Publication date	Jun 17, 2025
Grant date	Jun 17, 2025

Abstract

Bleach catalyst detergent compositions are provided. The compositions are suitable for use with additional detergent and/or bleaching compositions while providing bleach catalysts within a detergent composition. The detergent compositions are free of anionic surfactant, are highly aqueous and have a pH of less than 6. Methods of use for cleaning are disclosed.

First claim

What is claimed is:

1. A liquid bleach catalyst detergent composition comprising:
A) a manganese bleach catalyst;
B) from about 20 wt. % to about 60 wt. % of an ethoxylated linear alcohol nonionic surfactant;
C) less than about 5 wt. % anionic surfactant;
D) a buffer; and
E) at least about 10 wt. % water; wherein said composition has a pH of less than about 6.

2. The bleach composition of claim 1 further comprising a catalyst according to the following formula:
[(L p Mn q ) n X r ]Y s
wherein each L independently is an organic ligand containing at least three nitrogen atoms and/or at least two carboxyl groups that coordinate with the Mn metal;
wherein each X independently is a coordinating or bridging group selected from the group of H2O, OH—, SH—, HO2—, O2—, O22—, S2—, F—, Cl—, Br—, I—, NO3—, NO2—, SO42-, SO32—, PO43—, N3—, CN—, NR3, NCS—, RCN, RS—, RCO2—, RO—, and

wherein R is a hydrogen or a C1 to C6 alkyl group;
wherein p is an integer from 1 to 4;
wherein q is an integer from 1 to 2;
wherein r is an integer from 0 to 6;
wherein Y is a counter ion; and
wherein s is the number of counter ions.

3. The detergent composition according to claim 1 , wherein a use solution of the detergent composition provides from about 0.01 ppm to about 5 ppm of the bleach catalyst.

4. The detergent composition according to claim 1 , wherein the catalyst is a complex according to the following formula:

wherein M is Mn; wherein L 1 and L 2 are separate ligands or wherein L 1 and L 2 can combine to be a single molecule.

5. The detergent composition according to claim 1 , further comprising an optical brightener.

6. The detergent composition according to claim 1 , wherein buffer is acetic acid and/or sodium acetate trihydrate.

7. The detergent composition according to claim 1 , further comprising a solvent of propylene glycol.

8. A liquid bleach catalyst laundry detergent use composition comprising a liquid bleach catalyst laundry detergent comprising:
A) from about 0.01 wt. % to about 15 wt. % of a manganese bleach catalyst;
B) from about 20 wt. % to about 60 wt. % of one or more ethoxylated linear alcohol nonionic surfactants;
C) less than about 5 wt. % anionic surfactant;
D) a buffer;
E) from about 0.1 wt. % to about 30 wt. % of at least one additional functional ingredient; and
F) from about 30 wt. % to about 80 wt. % water; wherein said composition has a pH of less than about 6, and is diluted to form a use solution that both bleaches and cleans.

9. The method of claim 8 wherein said use solution includes a dilution ratio of between about 1:10 and about 1:1000 detergent to water.

10. The method of claim 8 wherein the use solution includes a dilution ratio of between about 1:100 and about 1:5000 detergent to water.

11. The composition of claim 8 wherein said catalyst is according to the following formula:
[(L p Mn q ) n X r ]Y s
wherein each L independently is an organic ligand containing at least three nitrogen atoms and/or at least two carboxyl groups that coordinate with the Mn metal;
wherein each X independently is a coordinating or bridging group selected from the group consisting of H2O, OH—, SH—, HO2—, O2—, O22—, S2—, F—, Cl—, Br—, I—, NO3—, NO2—, SO42—, SO32—, PO43—, N3—, CN—, NR3, NCS—, RCN, RS—, RCO2—, RO—, and

wherein R is a hydrogen or a C1 to C6 alkyl group;
wherein p is an integer from 1 to 4;
wherein q is an integer from 1 to 2;
wherein r is an integer from 0 to 6;
wherein Y is a counter ion; and
wherein s is the number of counter ions.

12. The detergent composition according to claim 8 , wherein the composition has a pH of at least about 4.5.

13. The detergent composition according to claim 8 , wherein the buffer is acetic acid.

14. The detergent composition according to claim 1 , wherein the catalyst is a complex according to the following formula:

wherein M is Mn; wherein L 1 and L 2 are separate ligands or wherein L 1 and L 2 can combine to be a single molecule.

15. A method of cleaning and/or bleaching textiles comprising:
providing the liquid bleach catalyst detergent composition of claim 1 ;
generating a use solution from the detergent composition in a laundry machine; and
contacting a textile in need of cleaning and/or bleaching with the use solution.

16. The method of claim 15 wherein said laundry machine is a consumer use machine.

17. The method of claim 15 wherein said laundry machine is an industrial or institutional use machine.

18. The method of claim 15 wherein said laundry machine is a continuous washer, batch washer extractor, textile-presoak wash system, steam system, dry-wash device, other dry-cleaning device, or top or side loading washing machine.

19. The method of claim 15 wherein said laundry machine is a single washing machine or continuous load washer, or a combination thereof.

20. The method of claim 15 wherein said textile is a woven or non-woven fabric or article, or garment.

21. The method of claim 20 wherein said textile is one or more of a cotton, poly-cotton blends, wool, aramids, polyurethanes, olefins, polyactids, nylons, silk, hemp, rayon, flax, jute, acrylics, polyesters, those made from many other synthetic or natural fibers and mixtures thereof.

22. The method of claim 15 wherein said use solution includes a dilution ratio of between about 1:10 and about 1:1000 detergent to water.

23. The method of claim 15 wherein the concentrate is diluted at a ratio of between about 1:100 and about 1:5000 detergent to water.

24. The method of claim 15 wherein said bleaching and cleaning are performed in a single step in said use solution.

Assignees

• Ecolab Usa Inc

Inventors

• Lundberg Steven
• Fast Jonathan P

Classifications

• C11D2111/14

  Hard surfaces · CPC title

• C11D2111/12

  Soft surfaces, e.g. textile · CPC title

• C11D3/3915

  Sulfur-containing compounds · CPC title

• C11D3/3917 Primary

  Nitrogen-containing compounds · CPC title

• C11D3/3932

  Inorganic compounds or complexes · CPC title