External structuring system for liquid laundry detergent composition

Patent metadata

Field	Value
Publication number	US-9752108-B2
Application number	US-201313964130-A
Country	US
Kind code	B2
Filing date	Aug 12, 2013
Priority date	Sep 28, 2012
Publication date	Sep 5, 2017
Grant date	Sep 5, 2017

Abstract

The present invention relates to external structuring system(s) (ESS) comprising crystallized triglycerides including crystallized hydrogenated castor oil (HCO), surfactant and organic non-amino functional alcohols to reduce shear sensitivity. The present invention also relates to laundry detergent compositions in liquid or gel form comprising ESS.

First claim

What is claimed is:

1. An external structuring system for liquid and gel-form detergents comprising by weight percentage of the external structuring system:
a) from about 2% to about 10% of crystals of a glyceride having a melting temperature of from about 40° C. to about 100° C.;
b) from about 2% to about 20% of pH adjusting agent, wherein said pH adjusting agent is monoethanolamine;
c) from about 5% to about 50% of an anionic surfactant; and
d) 1% of an organic non-aminofunctional alcohol selected from the group consisting of 1,2-propanediol, 1,3-propanediol, and mixtures thereof.

2. The external structuring system according to claim 1 , wherein said glyceride is hydrogenated castor oil.

3. The external structuring system according to claim 1 , wherein said anionic surfactant is a synthetic anionic surfactant selected from the group consisting of sodium linear alkylbenzene sulfonates, potassium linear alkylbenzene sulfonates, and acidic form of linear alkylbenzene sulfonates (HLAS), in which the average number of carbon atoms in the alkyl group is from about 11 to about 14.

4. The external structuring system according to claim 1 , wherein said anionic surfactant is acid form of linear alkylbenzenesulfonate (HLAS) in which the average number of carbon atoms in the alkyl group is from about 11 to about 14.

5. The external structuring system according to claim 1 , wherein said organic non-aminofunctional alcohol is 1,2-propanediol.

6. A detergent composition comprising the external structuring system according to claim 1 .

7. The detergent composition of claim 6 , wherein said detergent composition is in a form selected from liquid and gel.

8. The detergent composition of claim 6 , wherein said detergent is a liquid laundry detergent comprising from about 1% to about 20% external structuring system by weight of the liquid laundry detergent composition, and wherein said external structuring system provides sufficient hydrogenated castor oil to achieve a finished detergent product level of from about 0.1 to about 10 by weight % of the finished detergent product of hydrogenated castor oil.

9. The detergent composition of claim 6 , wherein said detergent composition is a liquid enclosed in water-soluble film.

10. The detergent composition of claim 6 , wherein said detergent is a detergent selected from a hard surface cleaning composition and a liquid laundry detergent composition.

11. A liquid detergent composition comprising an external structuring system according to claim 1 , further characterized in that said detergent composition comprises, by weight % of the detergent composition:
a. from about 15 to about 40% anionic surfactant;
b. from about 5 to about 15% nonionic surfactant;
c. from about 5 to about 15% fatty acid;
d. from about 0.1 to about 5% citric acid, chelants or mixtures thereof;
e. from about 2 to about 15% organic solvent;
f. from about 0.05 to about 1.5% hydrogenated castor oil;
g. from about 5 to about 15% alkanolamine; and
h. from about 0.1 to about 5% cleaning polymer.

12. A method of structuring a detergent composition, comprising the steps of:
a. providing a detergent composition or components thereof;
b. incorporating the external structuring system of claim 1 in the detergent composition or components thereof.

Assignees

• Procter & Gamble

Inventors

• Guida Vincenzo
• Meert Joris

Classifications

• C11D3/2093

  Esters; Carbonates · CPC title

• C11D17/0013 Primary

  Liquid compositions with insoluble particles in suspension (C11D17/0021, C11D17/0026, C11D17/003 take precedence) · CPC title

• C11D3/2003

  Alcohols; Phenols · CPC title

• C11D3/2044

  linear · CPC title

• C11D17/003

  Colloidal solutions, e.g. gels; Thixotropic solutions or pastes · CPC title