Detergent composition comprising surfactant boosting polymers

Patent metadata

Field	Value
Publication number	US-9528076-B2
Application number	US-87336610-A
Country	US
Kind code	B2
Filing date	Sep 1, 2010
Priority date	Sep 15, 2009
Publication date	Dec 27, 2016
Grant date	Dec 27, 2016

Abstract

The present invention relates to a compact liquid detergent composition comprising less than 25% of water by weight of the composition and further comprising surfactant, surfactant boosting polymer and fatty acid suitable for use in laundry cleaning.

First claim

What is claimed is:

1. A compact liquid detergent composition comprising from 8 to 15% water by weight of the composition and comprising a surfactant and a surfactant boosting polymer, which increases the gradient of the decline in interfacial surface tension by at least 15%, and from 5% to 10% fatty acid(s) or their salts by weight of the composition, the composition comprising 3% to 8% of said surfactant boosting polymer by weight of the composition, wherein said surfactant boosting polymer comprises from 25% to 60% of hydrophilic backbone, and from 75% to 40% of hydrophobic side chains, said composition further comprising from 17% to 50% of an organic solvent system by weight of the composition, wherein said solvent system comprises a C1-C4 alkanolamine, wherein said composition further comprises a rheology modifier, and wherein said composition is encapsulated in a water-soluble pouch.

2. A compact liquid detergent composition according to claim 1 wherein said surfactant boosting polymer comprises from 25% to 50% of hydrophilic backbone, and from 50% to 75% of hydrophobic side chains.

3. A compact liquid detergent composition according to claim 1 wherein said surfactant boosting polymer comprises 40% of hydrophilic backbone, and from 60% of hydrophobic side chains.

4. A compact liquid detergent composition according to claim 1 wherein said hydrophilic backbone of the surfactant boosting polymer is selected from the group consisting of ethylene oxide, propylene oxide, butylene oxide and mixtures thereof and hydrophobic side chains of the surfactant boosting polymers are selected from the group consisting of vinyl acetate and vinyl propionate and mixtures thereof.

5. A compact liquid detergent composition according to claim 1 wherein the surfactant boosting polymer comprises 40% ethylene oxide and 60% vinyl acetate.

6. A compact liquid detergent composition according to claim 1 wherein the surfactant boosting polymer has a mean weight average molecular weight M w from 3000 to 100,000.

7. A compact liquid detergent composition according to claim 1 wherein the surfactant boosting polymer has a mean weight average molecular weight M w from 6000 to 45,000.

8. A compact liquid detergent composition according to claim 1 wherein the surfactant boosting polymer has a mean weight average molecular weight M w from 8000 to 30,000.

9. A compact liquid detergent composition according to claim 1 wherein the polydispersity M w /M n of the surfactant boosting polymer is from 1 to 3, wherein the polydispersity M w /M n is calculated by dividing the weight average molecular weight (M w ) by the number average molecular weight (M n ).

10. A compact liquid detergent composition according to claim 1 wherein the polydispersity M w /M n of the surfactant boosting polymer is from 1.5 to 2.5, wherein the polydispersity M w /M n is calculated by dividing the weight average molecular weight (M w ) by the number average molecular weight (M n ).

11. A compact liquid detergent composition according to claim 1 wherein the polydispersity M w /M n of the surfactant boosting polymer is from 1.5 to 2.2, wherein the polydispersity M w /M n is calculated by dividing the weight average molecular weight (M w ) by the number average molecular weight (M n ).

12. A compact liquid detergent composition according to claim 1 wherein said compact liquid detergent composition comprises 3% to 5% surfactant boosting polymer by weight of the composition.

13. A compact liquid detergent composition according to claim 1 wherein said surfactant is selected from the group consisting of C 11 -C 18 alkyl benzene sulfonates (LAS), C 10 -C 20 branched-chain and random alkyl sulfates (AS), C m -C is alkyl ethoxy sulfates (AE x S) wherein x is from 1-30, mid-chain branched alkyl sulfates, mid-chain branched alkyl alkoxy sulfates, C 10 -C 18 alkyl alkoxy carboxylates comprising 1-5 ethoxy units, modified alkylbenzene sulfonate (MLAS), C 12 -C 20 methyl ester sulfonate (MES), C 10 -C 18 alpha-olefin sulfonate (AOS), C 6 -C 20 sulfosuccinates, and mixtures thereof.

14. A compact liquid detergent composition according to claim 1 wherein said compact liquid detergent comprises surfactant from 1% to 80% by weight of the composition.

15. A compact liquid detergent composition according to claim 1 wherein said compact liquid detergent comprises surfactant from 5% to 50% by weight of the composition.

16. A compact liquid detergent composition according to claim 1 wherein said surfactant is linear alkylbenzene sulphonate (LAS), said compact liquid detergent composition comprises from 4% to 30% linear alkylbenzene sulphonate by weight of the composition.

17. A compact liquid detergent composition according to claim 1 wherein said surfactant is linear alkylbenzene sulphonate (LAS), said compact liquid detergent composition comprises from 5% to 28% linear alkylbenzene sulphonate by weight of the composition.

18. A compact liquid detergent composition according to claim 1 wherein said surfactant is linear alkylbenzene sulphonate (LAS), said compact liquid detergent composition comprises from 7% to 25% linear alkylbenzene sulphonate by weight of the composition.

19. A compact liquid detergent composition according to claim 1 wherein said compact liquid detergent composition comprises from 6% to 10% fatty acids or their salts by weight of the composition.

20. A compact liquid detergent composition according to claim 1 , wherein said fatty acid or their salts are C12-C18 saturated and/or unsaturated fatty acids.

21. A compact liquid detergent composition according to claim 1 further comprising an opacifier and an antioxidant.

22. A compact liquid detergent composition according to claim 1 , wherein said C1-C4 alkanolamine comprises monoethanolamine.

23. A compact liquid detergent composition according to claim 22 , wherein the monoethanolamine buffers the composition to a pH of about 7.5.

Assignees

• Labeque Regine
• Procter & Gamble

Inventors

• Labeque Regine

Classifications

• C11D1/22 Primary

  derived from aromatic compounds · CPC title

• C11D3/3715

  Polyesters or polycarbonates · CPC title

• C11D1/37

  Mixtures of compounds all of which are anionic · CPC title

• C11D3/3707

  Polyethers, e.g. polyalkyleneoxides · CPC title

• C11D1/06

  Ether- or thioether carboxylic acids · CPC title