Granted Patent B2

US 12,365,855 · App. 18/582,069 · Granted Jul 22, 2025

Inventors: Hilde Francoise Louise Andriessen (Mol, BE); Kevin Bekaert (Wemmel, BE); Jean-Pol Boutique (Gembloux, BE); Alice Michele Boutoille (Brussels, BE); Harry William Broening (Milford, OH); Karel Jozef Maria Depoot (Anzegem Vichte, BE); Phillip Kyle Vinson (Fairfield, OH)

Assignee: The Procter & Gamble Company

C11D17/043C11D1/72C11D2111/12

Abstract

Claims (46)

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

a. from about 15% to about 55% by weight of the laundry detergent composition of a non-soap anionic surfactant;

b. from about 2.5% to about 30% by weight of the laundry detergent composition of a non-ionic surfactant;

wherein the non-ionic surfactant comprises:

(i) a first alkoxylated alcohol non-ionic surfactant according to structure:

R 1 —O-(AO 1 ) n -(AO 2 ) m -(AO 3 ) z —H,  (I)

wherein AO 1 is a first alkoxy chain selected from an ethoxylate chain, a propoxylate chain or a butoxylate chain, AO 2 is a second alkoxy chain selected from an ethoxylate chain, a propoxylate chain or a butoxylate chain, AO 3 is a third alkoxy chain selected from an ethoxylate chain, a propoxylate chain or a butoxylate chain and wherein AO 1 and AO 2 are different from one another, and wherein if AO 3 is present, then AO 2 and AO 3 are different from one another; R 1 is a linear or branched alkyl chain having an average of from about 8 to about 18 carbon atoms; n is from about 1-30, m is from about 1-30 and z is from about 0-30, and sum total of n+m+z is at least about 10; and

(ii) between about 2% and about 10% by weight of the laundry detergent composition of a second alkoxylated alcohol non-ionic surfactant according to structure:

R 2 —O-(EO) p —H,  (II)

wherein, EO is an ethoxylate chain; R 2 is a linear or branched alkyl chain having an average of from about 8 to about 18 carbon atoms; p is from about 1-30, and

wherein the laundry detergent composition comprises between about 2.5% and about 20%, by weight of the detergent composition, of the first alkoxylated alcohol non-ionic surfactant, and

wherein the weight ratio of the first alkoxylated non-ionic surfactant to the second alkoxylated non-ionic surfactant is from about 1:1 to about 7:1, and

wherein the water-soluble film comprises a polyvinylalcohol polymer.

2. The water-soluble unit dose article according to claim 1 , wherein the laundry detergent composition comprises from about 3.5% to about 20%, by weight of the laundry detergent composition, of the non-ionic surfactant.

3. The water-soluble unit dose article according to claim 1 , wherein the first alkoxylated alcohol non-ionic surfactant is selected from those having the formulae;

R 1 —O-(EO) x —(PO) y -(AO 3 ) z —H; or  (III)

R 1 —O—(PO) y -(EO) x -(AO 3 ) z —H;  (IV)

wherein EO is an ethoxylate group, PO is a propoxylate group, AO 3 is selected from ethoxylate group, propoxylate group, or butoxylate group;

each x is independently from about 1 to about 30;

each y is independently from about 1 to about 30;

each z is independently from about 0 to about 30;

each R 1 is a linear or branched alkyl chain having an average of from about 8 to about 18 carbon atoms.

4. The water-soluble unit dose article according to claim 3 , wherein the first alkoxylated alcohol non-ionic surfactant has the formula;

R 1 —O—(PO) y -(EO) x —H  (V)

wherein EO is an ethoxylate group, PO is a propoxylate group;

x is from about 3 to about 30;

y is from about 2 to about 10;

R 1 is a linear or branched alkyl chain having an average of from about 8 to about 10 carbon atoms.

5. The water-soluble unit dose article according to claim 4 wherein R 1 is 2-ethylhexyl or 2-propylheptyl.

6. The water-soluble unit dose article according to claim 4 wherein the sum total of x+y is from 10 to 40.

7. The water-soluble unit dose article according to claim 1 , wherein the second alkoxylated alcohol non-ionic surfactant has the formula;

R 2 —O-(EO) p —H,  (II)

wherein EO is an ethoxylate group;

p is an average from about 5 to about 12 units of ethylene oxide per mole of alcohol; and

R 2 is a linear or branched alkyl chain having an average of from about 8 to about 18 carbon atoms.

8. The water-soluble unit dose article according to claim 1 , wherein the detergent composition comprises between about 20% and about 55%, by weight the detergent composition, of a non-soap anionic surfactant.

9. The water-soluble unit dose article according to claim 8 , wherein the non-soap anionic surfactant comprises linear alkyl benzene sulphonate and an alkoxylated alkyl sulphate.

10. The water-soluble unit dose article according to claim 9 , wherein the weight ratio of linear alkylbenzene sulphonate to alkoxylated alkyl sulphate is from about 1:2 to about 9:1.

11. The water-soluble unit dose article according to claim 8 , the weight ratio of non-soap anionic surfactant to non-ionic surfactant is from about 1:1 to about 13:1.

12. The water-soluble unit dose article according to claim 1 further comprising a fatty acid.

13. The water-soluble unit dose article according to claim 12 , wherein the detergent composition comprises between about 1.5% and about 20%, by weight of the detergent composition, of fatty acid.

14. The water-soluble unit dose article according to claim 1 , wherein the liquid laundry detergent further comprises between about 1% and about 20%, by weight of the liquid detergent composition, of water.

15. The water-soluble unit dose article according to claim 1 , wherein the liquid laundry detergent composition comprises between about 10% and about 40%, by weight of the liquid laundry detergent composition, of a non-aqueous solvent,

wherein the non-aqueous solvent is selected from 1,2-propanediol, dipropylene glycol, tripropyleneglycol, glycerol, sorbitol, polyethylene glycol or a mixture thereof.

16. The water-soluble unit dose article according to claim 1 , wherein the water-soluble film comprises polyvinyl alcohol polymer or copolymer.

17. A process of laundering fabrics comprising the steps of diluting the water-soluble unit dose article according to claim 1 between 200- and 1000-fold with water to make a wash liquor, and contacting fabrics to be treated with the wash liquor.

Priority Claims (1)

Continuity (2)

References Cited (55)

Cited By (1)

US 12,618,022