Liquid detergent compositions

• US 6,894,017 B2
• Filed: 10/30/2002
• Issued: 05/17/2005
• Est. Priority Date: 11/01/2001
• Status: Expired due to Term

• Current Assignee: Unilever Home & Personal Care USA (Unilever PLC)
• Original Assignee: Unilever Home & Personal Care USA (Unilever PLC)
• Inventors: Brouwn, Lili Faucia, Van De Pas, Johannes Cornelis, Hines, John
• Primary Examiner(s): OGDEN JR, NECHOLUS
• Application Number:
  US10/284,232
• Publication Number:
  US 20030109408A1
• Time in Patent Office: 930 Days
• Field of Search: 510/425, 510/499, 510/481, 510/276, 510/280, 510/343, 510/353, 510/389, 510/421, 510/403
• US Class Current: 510/425
• CPC Class Codes: C11D 1/146 Sulfuric acid esters
• CPC Class Codes: C11D 1/22 derived from aromatic compounds
• CPC Class Codes: C11D 1/72 Ethers of polyoxyalkylene glycols
• CPC Class Codes: C11D 10/04 based on mixtures of surface-active non-soap compounds and soap
• CPC Class Codes: C11D 17/08 Liquid soap, e.g. for dispensers; capsuled
• CPC Class Codes: C11D 3/0021 Dye-stain or dye-transfer inhibiting compositions
• CPC Class Codes: C11D 3/0036 Soil deposition preventing compositions; Antiredeposition agents
• CPC Class Codes: C11D 3/3773 in liquid compositions
• CPC Class Codes: C11D 3/3776 Heterocyclic compounds, e.g. lactam

Abstract

An isotropic aqueous liquid detergent composition comprising:

• • (a) from 0% to 6%, preferably from 1% to 4% by weight of synthetic anionic surfactant;
  • (b) from 5% to 25%, preferably from 10% to 20% by weight of soap;
  • (c) from 0.03% to 5%, preferably from 0.10% to 1% by weight of a cationic polymer; and from 0.03% to 5%, preferably from 0.10% to 1% by weight of a cationic polymer or copolymer comprising at least one monomer unit which is cationic or carries at least one positive charge or carries a dipole moment greater than 3.5; and
  • (d) from 5% to 70%, preferably from 10% to 30% by weight of nonionic surfactant.

Claims

1. An isotropic aqueous liquid detergent composition comprising:

(a) from 0% to 4% by weight of synthetic anionic surfactant;

(b) from 5% to 25% by weight of soap;

(c) from 0.03% to 5% by weight of a cationic polymer is selected from the polymers and copolymers comprising one or more of monomers units derived from vinyl pyrrolidone, vinylimidzole, and mixtures thereof; and

(d) from 5% to 70% by weight of nonionic surfactant.

2. A composition according to claim 1, wherein the synthetic anionic surfactant is a non-ethoxylated anionic surfactant.

3. A composition according to claim 1, wherein the synthetic anionic surfactant is selected from alkylbenzene sulphonates, primary alkyl sulphates, secondary alkyl sulphates and mixtures thereof.

4. A composition according to claim 1, wherein the soap is selected from one or more alkali metal saturated soaps.

5. A composition according to claim 1, wherein the soap is selected from one or more alkali metal unsaturated soaps.

6. A composition according to claim 1, wherein the soap is selected from a mixture of one or more alkali metal saturated soap(s) and one or more alkali metal saturated soap(s).

7. A composition according to claim 1, wherein the cationic polymer has a number average molecular weight of from 3,000 to 50,000.

8. A composition according to claim 1, wherein the nonionic surfactant is an alkyl ethoxylate.

9. A composition according to claim 1 wherein the composition comprises from 10 to 20% by weight of soap.

10. A composition according to claim 1 wherein the composition comprises from 0.10% to 1% by weight of the cationic polymer.

11. A composition according to claim 1 wherein the composition comprises from 10 to 30% by weight of nonionic surfactant.

12. A composition according to claim 4 wherein the soap contains from 8 to 22 carbon atoms.

13. A composition according to claim 4 wherein the soap contains from 10 to 20 carbon atoms.

14. A composition according to claim 5 wherein the soap contains from 12 to 22 carbon atoms.

15. A composition according to claim 5 wherein the soap contains from 14 to 20 carbon atoms.

16. A composition according to claim 7 wherein the polymer has a number average molecular weight of from 5,000 to 30,000.

17. An isotropic aqueous liquid detergent composition comprising:

(a) from 0% to 6% by weight of synthetic anionic surfactant;

(b) from 5% to 25% by weight of soap;

(c) from 0.03% to 5% by weight of a cationic polymer is selected from the polymers and copolymers comprising one or more of monomers units derived from vinyl pyrrolidone, vinylimidzole, and mixtures thereof; and

(d) at least 12% by weight of nonionic surfactant.

18. A composition according to claim 17, wherein the synthetic anionic surfactant is a non-ethoxylated anionic surfactant.

19. A composition according to claim 17, wherein the synthetic anionic surfactant is selected from alkylbenzene sulphonates, primary alkyl sulphates, secondary alkyl sulphates and mixtures thereof.

20. A composition according to claim 17, wherein the soap is selected from one or more alkali metal saturated soaps.

21. A composition according to claim 17, wherein the soap is selected from one or more alkali metal unsaturated soaps.

22. A composition according to claim 17, wherein the soap is selected from a mixture of one or more alkali metal saturated soap(s) and one or more alkali metal saturated soap(s).

23. A composition according to claim 17, wherein the cationic polymer has a number average molecular weight of from 3,000 to 50,000.

24. A composition according to claim 17 wherein the nonionic surfactant is an alkyl ethoxylate.