Liquid laundry detergents containing cationic hydroxyethyl cellulose polymer

• US 7,576,048 B2
• Filed: 04/04/2007
• Issued: 08/18/2009
• Est. Priority Date: 04/04/2007
• Status: Expired due to Fees

• Current Assignee: The Procter & Gamble Company
• Original Assignee: The Procter & Gamble Company
• Inventors: Thooft, Serge Omer Alfons Jean, Vanneste, Falke Elisabeth, Depoot, Karel Jozef Maria, Lievens, Luc Marie Willy, Gray, Peter Gerard
• Primary Examiner(s): Mruk; Brian P
• Application Number:
  US11/732,776
• Publication Number:
  US 20080248986A1
• Time in Patent Office: 867 Days
• Field of Search: 510/276, 510/330, 510/331, 510/340, 510/357, 510/426, 510/437, 510/471, 510/473, 510/475, 510/481, 813/7
• US Class Current: 510/473
• CPC Class Codes: C11D 1/29 Sulfates of polyoxyalkylene ethers
• CPC Class Codes: C11D 1/525 Carboxylic amides (R1-CO-NR2R3), where R1, R2 or R3 contain two or more hydroxy groups per alkyl group, e.g. R3 being a reducing sugar rest
• 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 3/2079 Monocarboxylic acids-salts thereof
• CPC Class Codes: C11D 3/225 etherified, e.g. CMC

Abstract

Aqueous liquid laundry detergent compositions useful for cleaning fabrics wherein the compositions contain from about 0.05% to about 0.4%, by weight of the composition, of a cationic hydroxyethyl cellulose polymer having a degree of substitution of the cationic charge of from about 0.01 to about 0.20; from about 5% to about 30%, by weight of the composition, of a surfactant comprising at least one anionic surfactant and at least one nonionic surfactant; and from about 2% to about 15%, by weight of the composition, of fatty acid. Use of such aqueous liquid laundry detergent compositions for handwashing delicate fabrics. Use of such aqueous liquid laundry detergent compositions for machine washing of delicate fabrics, wherein the machine washing occurs at a delicate machine setting.

Claims

1. An aqueous liquid laundry detergent composition useful for cleaning fabrics wherein the composition comprises:

a) from about 0.05% to about 0.4%, by weight of the composition, of a cationic hydroxyethyl cellulose polymer having a degree of substitution of the cationic charge of from about 0.01 to about 0.20;

b) from about 5% to about 30%, by weight of the composition, of a surfactant comprising at least one anionic surfactant and at least one nonionic surfactant;

c) from about 2% to about 15%, by weight of the composition, of fatty acid; and

d) a benefit agent containing delivery particle, wherein the delivery particle is a perfume microcapsule;

wherein the composition comprises less than 0.001%, by weight of the composition, of enzymes having cellulytic activity; and

wherein the composition comprises less than 0.0001%, by weight of the composition, of optical brightener.

2. An aqueous liquid laundry detergent composition according to claim 1 wherein the cationic hydroxyethyl cellulose polymer has a degree of substitution of the cationic charge of from about 0.01 to about 0.1.

3. An aqueous liquid laundry detergent composition according to claim 2 wherein the cationic hydroxyethyl cellulose polymer has a degree of substitution of the cationic charge of from about 0.01 to less than 0.1.

4. An aqueous liquid laundry detergent composition according to claim 3 wherein the cationic hydroxyethyl cellulose polymer has a molecular weight of from about 200,000 to about 800,000.

5. An aqueous liquid laundry detergent composition according to claim 1 wherein the composition comprises from about 0.1% to about 0.3%, by weight of the composition, of the cationic hydroxyethyl cellulose polymer.

6. An aqueous liquid laundry detergent composition according to claim 2 wherein the composition comprises from about 0.15% to about 0.2%, by weight of the composition, of the cationic hydroxyethyl cellulose polymer.

7. An aqueous liquid laundry detergent composition according to claim 1 wherein the composition comprises from about 7% to about 15%, by weight of the composition, of the surfactant.

8. An aqueous liquid laundry detergent composition according to claim 1 wherein the composition comprises from about 2.5% to about 7%, by weight of the composition, of the fatty acid.

9. An aqueous liquid laundry detergent composition according to claim 1 wherein the composition further comprises an opacifying agent.

10. An aqueous liquid laundry detergent composition according to claim 1 wherein the anionic surfactant is selected from alkyl ethoxylate sulfates and linear alkyl benzene sulfonates.

11. An aqueous liquid laundry detergent composition according to claim 5 wherein the anionic surfactant is selected from alkyl ethoxylate sulfates having a chain length of from about 12 to about 14 and a degree of ethoxylation of from about 1 to about 8.

12. An aqueous liquid laundry detergent composition according to claim 1 wherein the composition funkier comprises a suds suppressor.

13. An aqueous liquid laundry detergent composition according to claim 1 wherein the composition is substantially free of enzymes.

14. An aqueous liquid laundry detergent composition according to claim 1 wherein the composition further comprises a laundry adjunct ingredient selected from soil release polymers, dye transfer inhibiting polymers, chelants, performance boosting polymers, preservatives, stabilizers, structurants, viscosity modifiers, and citric acid.

15. An aqueous liquid laundry detergent composition according to claim 1 wherein the composition further comprises from about 0.01 to about 1% of a structurant that is selected from hydrogenated castor oil.

16. An aqueous liquid laundry detergent composition useful for cleaning delicate fabrics wherein the composition comprises:

a) from about 0.15% to about 0.2%, by weight of the composition, of a cationic hydroxyethyl cellulose polymer having a molecular weight of from about 200,000 to about 800,000 and a degree of substitution of the cationic charge of from about 0.01 to 0.20;

b) from about 7% to about 15%, by weight of the composition, of a surfactant comprising an alkyl ethoxylate sulfate surfactant and at least one nonionic surfactant;

c) a benefit agent containing delivery particle, wherein the delivery particle is a perfume microcapsule; and

d) from about 2% to about 10%, by weight of the composition, of fatty acid;

wherein the composition comprises less than 0.0001%, by weight of the composition, of optical brightener; and

wherein the composition comprises less than 0.001%, by weight of the composition, of enzymes having cellulytic activity.

17. An aqueous liquid laundry detergent composition according to claim 16 wherein the composition comprises from about 2.5% to about 7%, by weight of the composition, of the fatty acid.

18. An aqueous liquid laundry detergent composition according to claim 16 wherein the alkyl ethoxylate sulfate surfactant has a chain length of from about 12 to about 14 and a degree of ethoxylation of from about 1 to about 8.