Laundry detergent composition

• US 9,657,255 B2
• Filed: 08/06/2015
• Issued: 05/23/2017
• Est. Priority Date: 08/07/2014
• Status: Active Grant

• Current Assignee: The Procter & Gamble Company
• Original Assignee: The Procter & Gamble Company
• Inventors: Matthys, Bruno Jean-Pierre, Maes, Jef Annie Alfons, De Poortere, Johan Maurice Theo, Boutoille, Alice Michele, Fernandezmartinez, Lucia, Bodet, Jean-Francois
• Primary Examiner(s): Mruk, Brian P
• Application Number:
  US14/819,461
• Publication Number:
  US 20160040099A1
• Time in Patent Office: 656 Days
• CPC Class Codes: C11D 1/04 Carboxylic acids or salts thereof soap C11D9/00
• CPC Class Codes: C11D 1/22 derived from aromatic compounds
• CPC Class Codes: C11D 1/29 Sulfates of polyoxyalkylene ethers
• CPC Class Codes: C11D 1/66 Non-ionic compounds C11D1/002, C11D1/004, C11D1/008 take precedence
• CPC Class Codes: C11D 1/72 Ethers of polyoxyalkylene glycols
• CPC Class Codes: C11D 1/83 Mixtures of non-ionic with anionic compounds
• CPC Class Codes: C11D 1/831 of sulfonates with ethers of polyoxyalkylenes without phosphates
• CPC Class Codes: C11D 17/043 Liquid or thixotropic (gel) compositions
• CPC Class Codes: C11D 17/045 Multi-compartment
• CPC Class Codes: C11D 3/2075 Carboxylic acids-salts thereof

Abstract

A liquid laundry detergent composition comprising;

an anionic surfactant, wherein the anionic surfactant comprises linear alkylbenzene sulphonate;

an ethoxylated alcohol non-ionic surfactant;

greater than 5.5% by weight of the composition of water;

wherein the weight ratio of total anionic surfactant:non-ionic surfactant is between 5:1 and 23:1; and

wherein the weight ratio of linear alkylbenzene sulphonate:non-ionic surfactant is between 5:1 and 10:1; and

wherein the weight ratio of total surfactant to water is between 3:1 to 20:1.

Claims

1. A water-soluble unit dose article comprising a water-soluble film and a liquid laundry detergent composition comprising:

an anionic surfactant, wherein the anionic surfactant comprises linear alkylbenzene sulphonate;

an ethoxylated alcohol non-ionic surfactant;

greater than about 5% by weight of the composition of water;

wherein the weight ratio of total anionic surfactant;

non-ionic surfactant is between about 5;

1 and about 23;

1; and

wherein the weight ratio of linear alkylbenzene sulphonate;

non-ionic surfactant is between about 5;

1 and about 10;

1; and

wherein the weight ratio of total surfactant to water is between about 3;

1 to about 20;

1,

wherein ‘

total anionic surfactant’

means the sum total of all the anionic surfactant present in the liquid laundry detergent composition, and wherein ‘

total surfactant’

means the level of all surfactant present in the liquid laundry detergent composition, including but not limited to all anionic, non-ionic and cationic surfactant but wherein ‘

surfactant’

does not include fatty acids or neutralized equivalents thereof; and

wherein the water-soluble unit dose article comprises at least two compartments.

2. A water-soluble unit dose article according to claim 1 wherein the weight ratio of total anionic surfactant:

non-ionic surfactant in said composition is between about 7;

1 and about 23;

1.

3. A water-soluble unit dose article according to claim 1 wherein the weight ratio of linear alkylbenzene sulphonate:

non-ionic surfactant in said composition is between about 6;

1 and about 10;

1.

4. A water-soluble unit dose article according to claim 3 wherein said composition comprises between about 20 wt % and about 42 wt % anionic surfactant.

5. A water-soluble unit dose article according to claim 4 wherein said composition comprises between about 30 wt % and about 40 wt % anionic surfactant.

6. A water-soluble unit dose article according to claim 1, wherein said anionic surfactant comprises alkyl ethoxylate sulphate.

7. A water-soluble unit dose article according to claim 1 comprising between about 15 wt % and about 25 wt % linear alkybenzene sulphonate.

8. A water-soluble unit dose article according to claim 1 comprising between about 0.5 wt % and about 7.5 wt % linear alkybenzene sulphonate.

9. A water-soluble unit dose article according to claim 1, comprising between about 1 wt % and about 5 wt % non-ionic surfactant.

10. A water-soluble unit dose article according to claim 1 wherein said non-ionic surfactant comprises a fatty alcohol ethoxylate of formula R(EO)_n, wherein R represents an alkyl chain between about 4 and about 30 carbon atoms, (EO) represents one unit of ethylene oxide monomer and n has an average value between about 0.5 and about 20.

11. A water-soluble unit dose article according to claim 1 wherein said composition comprises between about 5 wt % and about 15 wt % fatty acid.

12. A water-soluble unit dose article according to claim 1 wherein said composition comprises between about 5.5 wt % and about 20 wt % water.

13. A water-soluble unit dose article according to claim 1 wherein said composition comprises an adjunct laundry detergent ingredient, wherein the adjunct laundry detergent ingredient is selected from bleach, bleach catalyst, dye, hueing agents, cleaning polymers, alkoxylated polyamines, polyethyleneimines, alkoxylated polyethyleneimines, soil release polymers, amphiphilic graft polymers, surfactants, solvents, dye transfer inhibitors, chelants, enzymes, perfumes, encapsulated perfumes, perfume delivery agents, suds suppressor, brighteners, polycarboxylates, structurants, anti-oxidants, deposition aids and mixtures thereof.

14. A water-soluble unit dose article according to claim 1 wherein said composition comprises a solvent selected from alcohols, diols, monoamine derivatives, glycols, or mixtures thereof, wherein the molar ratio of total solvent to total surfactant is between about 1:

1 and about 1;

3.

15. The water-soluble unit dose article according to claim 1 comprising at least three compartments.

16. The water-soluble unit dose article according to claim 1 where the compartments are arranged in a superposed orientation or in a side-by-side orientation.