Alkylbenzenesulfonate surfactants

Patent metadata

Field	Value
Publication number	US-11879110-B2
Application number	US-202017101307-A
Country	US
Kind code	B2
Filing date	Nov 23, 2020
Priority date	Nov 27, 2019
Publication date	Jan 23, 2024
Grant date	Jan 23, 2024

Abstract

A liquid laundry composition having from about 6% to about 50%, by weight of the laundry composition, of a surfactant component. The surfactant component having from about 0.5% to about 30%, by weight of the laundry composition, of an HLAS surfactant selected from alkyl benzene sulfonic acids, alkali metal or amine salts of C10-16 alkyl benzene sulfonic acids, wherein the HLAS surfactant comprises greater than 50% C12.

First claim

What is claimed is:

1. A liquid laundry detergent composition comprising:
from about 6% to about 50%, by weight of the laundry composition, of a surfactant component, comprising; a) from about 0.5% to about 30%, by weight of the laundry composition, of an alkyl benzene sulfonate surfactant comprising alkyl benzene sulfonic acids, alkali metal or amine salts of C10-16 alkyl benzene sulfonic acids, or a combination thereof, wherein the alkyl benzene sulfonate surfactant comprises greater than 70% C12 and a ratio of even carbons to odd carbons of 3:2 to 99:1, and b) a second surfactant comprising a C14-C15 alkyl ethoxylates, an amine oxide, and between 2% to 10%, by weight of the laundry composition, of an alkyl ethoxylated sulfate surfactant.

2. The liquid laundry detergent composition according to claim 1 , wherein the surfactant component comprises from about 1% to about 20%, by weight of the laundry composition, of the alkyl benzene sulfonate surfactant.

3. The liquid laundry detergent composition according to claim 1 , wherein the surfactant component comprises from about 30% to about 75% by weight of the alkyl benzene sulfonate surfactant.

4. The liquid laundry detergent composition according to claim 1 , wherein the ratio of alkyl benzene sulfonate surfactant to alkyl ethoxylated sulfate surfactant, on a weight basis, is from about 1:1 to about 10:1.

5. The liquid laundry detergent composition according to claim 1 , wherein the second surfactant further comprises an alkyl sulfate surfactant and the ratio of alkyl benzene sulfonate surfactant to alkyl sulfate surfactant, on a weight basis, is from about 0.5:1 to about 5:1.

6. The liquid laundry detergent composition according to claim 1 , wherein the alkyl benzene sulfonate surfactant is selected from C10 to C14 alkyl benzene sulfonic acids and mixtures thereof.

7. The liquid laundry detergent composition according to claim 6 , wherein the alkyl benzene sulfonate surfactant is selected from linear alkyl benzene sulfonates and mixtures thereof.

8. The liquid laundry detergent composition according to claim 7 , wherein the alkyl benzene sulfonate surfactant comprises greater than 75% C12.

9. The liquid laundry detergent composition of claim 1 , wherein the alkyl benzene sulfonate surfactant comprises greater than 80% C12.

10. The liquid laundry detergent composition of claim 1 , wherein the alkyl benzene sulfonate surfactant comprises greater than 90% C12.

11. The liquid laundry detergent composition according to claim 1 , wherein the laundry composition has a pH from about 4 to about 9.

12. The liquid laundry detergent composition according to claim 1 , wherein the laundry composition is transparent or translucent.

13. The liquid laundry detergent composition according to claim 1 , wherein the alkyl benzene sulfonate surfactant is neutralized by any combination of the following counterions: sodium, potassium, magnesium, ammonium, monoisopropanolamine, monoethanolamine, triethanolamine, methyldiethanolamine, dimethylethanolamine.

14. The liquid composition of claim 1 , wherein the alkyl portion of the alkyl ethoxylated sulfate surfactant includes, on average, from 13.9 to about 14.6 carbon atoms distribution.

15. The liquid laundry detergent composition according to claim 1 wherein the liquid laundry detergent composition is a unitized dose article.

Assignees

• Procter & Gamble

Inventors

• Vinson Phillip Kyle
• Reilman Randall Thomas
• Stenger Patrick Christopher
• Thomas Cheyne

Classifications

• C11D1/22 Primary

  derived from aromatic compounds · CPC title

• C11D1/29

  Sulfates of polyoxyalkylene ethers · CPC title

• C11D11/0017

  Chemistry & Metallurgy · mapped topic

• C11D17/0008

  aqueous liquid non soap compositions (C11D3/0015, C11D3/3947, C11D3/3956 take precedence) · CPC title

• C11D17/043

  Liquid or thixotropic (gel) compositions · CPC title