Detergent compositions having surfactant systems

Patent metadata

Field	Value
Publication number	US-10087403-B2
Application number	US-201715403277-A
Country	US
Kind code	B2
Filing date	Jan 11, 2017
Priority date	Jan 11, 2017
Publication date	Oct 2, 2018
Grant date	Oct 2, 2018

Abstract

Detergent compositions having surfactant systems that include alkyl ethoxylated sulfate surfactant (AES) and linear alkyl benzene sulfonate surfactant (LAS). Methods of treating fabric with such compositions.

First claim

What is claimed is:

1. A liquid detergent composition comprising:
from about 5% to 20%, by weight of the composition, of a surfactant system,
the surfactant system comprising alkyl ethoxylated sulfate surfactant (AES) and linear alkyl benzene sulfonate surfactant (LAS),
wherein the alkyl portion of the AES includes, on average, from 13.9 to about 14.6 carbon atoms,
wherein the AES has an average degree of ethoxylation of from 1 to 5, and
wherein the AES and the LAS are present in a weight ratio of from about 1.5:1 to about 5:1 and the surfactant system further comprises 0.1-2% by weight of amine oxide and furthermore the composition includes a viscosity of greater than 500 cps, measured at 20 s-1 and 20° C.

2. A liquid detergent composition according to claim 1 , wherein the composition comprises from about 8% to about 18%, preferably about 10% to about 16%, by weight of the composition, of a surfactant system.

3. A liquid detergent composition according to claim 1 , wherein the AES has an average degree of ethoxylation of from about 1.5 to about 3.

4. A liquid detergent composition according to claim 1 , wherein the AES and the LAS are present in a weight ratio of from about 2:1 to about 4:1.

5. A liquid detergent composition according to claim 1 , wherein the composition comprises less than about 2%, by weight of the composition, of an inorganic salt.

6. A liquid detergent composition according to claim 1 , wherein the composition comprises less than 0.1%, by weight of the composition, of external structurants, wherein the external structurants are selected from the group consisting of polymeric structurants, non-polymeric crystalline hydroxy-functional structurants, and combinations thereof.

7. A liquid detergent composition according to claim 1 , wherein the composition includes less than about 1% of anionic mid-chain branched surfactant.

8. A liquid detergent composition according to claim 1 , wherein the composition further comprises a detergent adjunct selected from the group consisting of fatty acids and/or salts thereof, enzymes, encapsulated benefit agents, soil release polymers, hueing agents, builders, chelating agents, dye transfer inhibiting agents, dispersants, enzyme stabilizers, catalytic materials, bleaching agents, bleach catalysts, bleach activators, polymeric dispersing agents, soil removal/anti-redeposition agents, polymeric soil release agents, polymeric dispersing agents, polymeric grease cleaning agents, brighteners, suds suppressors, dyes, perfume, structure elasticizing agents, fabric softeners, carriers, fillers, hydrotropes, solvents, anti-microbial agents and/or preservatives, neutralizers and/or pH adjusting agents, processing aids, opacifiers, pearlescent agents, pigments, and mixtures thereof.

9. A liquid detergent composition according to claim 1 , wherein the composition further comprises at least about 50%, by weight of the composition, of water.

10. A liquid detergent composition according to claim 1 , wherein the composition further comprises from about 0.1% to about 5% of a viscosity-reducing polymer.

11. A liquid detergent composition according to claim 10 , wherein the viscosity-reducing polymer is an alkoxylated polyalkyleneimine.

12. A liquid detergent composition according to claim 11 , wherein the alkoxylated polyalkyleneimine is a polyethyleneimine (PEI) comprising inner polyethylene oxide blocks and outer polypropylene oxide blocks, where the ratio of polyethylene oxide blocks to polypropylene oxide blocks (n/p) is from about 1 to about 5.

13. A method of treating a fabric, the method comprising the step of contacting a fabric with the composition of claim 1 .

Assignees

• Procter & Gamble

Inventors

• Delaney Sarah Ann
• Stenger Patrick Christopher
• Hall Meg Elizabeth
• Thomas Cheyne

Classifications

• C11D1/22

  derived from aromatic compounds · CPC title

• C11D1/29

  Sulfates of polyoxyalkylene ethers · CPC title

• C11D3/046

  Salts · CPC title

• C11D3/3723

  Polyamines or polyalkyleneimines · CPC title

• C11D1/37 Primary

  Mixtures of compounds all of which are anionic · CPC title