# US 11,028,342 B2 · Use of an ionic liquid and alcohol blend to modify the rheology of polyethoxylated alcohol sulfates > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,028,342 B2 - Document ID: US11028342B2 - Status: Granted - Kind: B2 - Application number: 15/831,500 - Filed: 2017-12-05 - Published: 2019-06-06 - Granted: 2021-06-08 - Earliest claimed: 2017-12-05 - Assignees: Henkel IP & Holding GmbH - Applicants: Henkel IP & Holding GmbH - Inventors: Daniel Thomas Piorkowski; David S. Stott, II - Web page: https://patentgrep.com/patent/US11028342B2 ## CPC - C11D 1/831: of sulfonates with ethers of polyoxyalkylenes without phosphates - C11D 1/29: Sulfates of polyoxyalkylene ethers - C11D 3/2006: {Monohydric alcohols} - C11D 3/30: Amines; Substituted amines {; Quaternized amines} - C11D 3/3409: {Alkyl -, alkenyl -, cycloalkyl - or terpene sulfates or sulfonates} - C11D 3/3463: {containing thio sulfate or sulfite groups} - C11D 17/042: {Water soluble or water disintegrable containers or substrates containing cleaning compositions or additives for cleaning compositions} - C11D 1/123: {derived from carboxylic acids, e.g. sulfosuccinates} - C11D 1/146: {Sulfuric acid esters} - C11D 1/62: Quaternary ammonium compounds - C11D 1/72: Ethers of polyoxyalkylene glycols - C11D 3/201: {linear} - C11D 3/2013: {fatty or with at least 8 carbon atoms in the alkyl chain} - C11D 3/2017: {branched} - C11D 11/0094: {Process for making liquid detergent compositions, e.g. slurries, pastes or gels} - C11D 2111/12: Soft surfaces, e.g. textile - C11D: DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL ## Abstract In one embodiment, a polyethoxylated alcohol sulfate composition is provided which includes a polyethoxylated alcohol sulfate, such as sodium laureth ether sulfate (SLES), water, an ionic liquid, and an alcohol. The ionic liquid and the alcohol form a synergistic blend, enabling a significant reduction of the viscosity of the polyethoxylated alcohol sulfate composition. Also provided is an embodiment of a method for modifying the rheology of polyethoxylated alcohol sulfate by use of an ionic liquid and alcohol blend. Finally provided is an embodiment of a detergent composition which is prepared by use of the polyethoxylated alcohol sulfate composition described herein, in addition to other commonly known ingredients. ## Claims ### Claim 1 A polyethoxylated alcohol sulfate blend consisting essentially of: sodium laureth ether sulfate (SLES), ethanol, tris(2-hydroxyethyl) methyl-ammonium methyl sulfate, and water; wherein the sodium laureth ether sulfate is present in an amount ranging from about 20% to about 80% by weight of the blend, wherein the ethanol is present with the tris(2-hydroxyethyl) methyl-ammonium methylsulfate in a weight ratio of about 6:12 to about 6:18, and wherein the blend does not include any component other than the sodium laureth ether sulfate, the water, the ethanol, and the tris(2-hydroxyethyl) methyl-ammonium methyl sulfate. ### Claim 2 (depends on 1) The polyethoxylated alcohol sulfate blend according to claim 1, wherein the sodium laureth ether sulfate (SLES) and water have a weight ratio of 7:3. ### Claim 3 (depends on 1) A detergent composition comprising the polyethoxylated alcohol sulfate blend according to claim 1. ### Claim 4 (depends on 3) The detergent composition according to claim 3, wherein the detergent composition is enclosed in a pouch made of a water-soluble polymer film. ### Claim 5 (depends on 1) The polyethoxylated alcohol sulfate blend according to claim 1, wherein the sodium laureth ether sulfate is present in an amount of about 60% by weight of the blend. ### Claim 6 (depends on 5) The polyethoxylated alcohol sulfate blend according to claim 5, wherein the ethanol is present with the tris(2-hydroxyethyl) methyl-ammonium methylsulfate in a weight ratio of about 6:12. ### Claim 7 (depends on 5) The polyethoxylated alcohol sulfate blend according to claim 5, wherein the ethanol is present with the tris(2-hydroxyethyl) methyl-ammonium methylsulfate in a weight ratio of about 6:18. ### Claim 8 (depends on 1) The polyethoxylated alcohol sulfate blend according to claim 1, wherein the ethanol is present with the tris(2-hydroxyethyl) methyl-ammonium methylsulfate in a weight ratio of about 6:12. ### Claim 9 (depends on 1) The polyethoxylated alcohol sulfate blend according to claim 1, wherein the ethanol is present with the tris(2-hydroxyethyl) methyl-ammonium methylsulfate in a weight ratio of about 6:18. ### Claim 10 (depends on 3) The detergent composition according to claim 3, wherein the sodium laureth ether sulfate is present in the blend in an amount of about 60% by weight of the blend. ### Claim 11 (depends on 10) The detergent composition according to claim 10, wherein the ethanol is present with the tris(2-hydroxyethyl) methyl-ammonium methylsulfate in a weight ratio of about 6:12. ### Claim 12 (depends on 10) The detergent composition according to claim 10, wherein the ethanol is present with the tris(2-hydroxyethyl) methyl-ammonium methylsulfate in a weight ratio of about 6:18. ### Claim 13 (depends on 3) The detergent composition according to claim 3, wherein the ethanol is present with the tris(2-hydroxyethyl) methyl-ammonium methylsulfate in a weight ratio of about 6:12. ### Claim 14 (depends on 3) The detergent composition according to claim 3, wherein the ethanol is present with the tris(2-hydroxyethyl) methyl-ammonium methylsulfate in a weight ratio of about 6:18. ### Claim 15 (depends on 2) A detergent composition comprising the polyethoxylated alcohol sulfate blend according to claim 2 that is enclosed in a pouch made of a water-soluble polymer film. ### Claim 16 (depends on 5) A detergent composition comprising the polyethoxylated alcohol sulfate blend according to claim 5 that is enclosed in a pouch made of a water-soluble polymer film. ### Claim 17 (depends on 6) A detergent composition comprising the polyethoxylated alcohol sulfate blend according to claim 6 that is enclosed in a pouch made of a water-soluble polymer film. ### Claim 18 (depends on 7) A detergent composition comprising the polyethoxylated alcohol sulfate blend according to claim 7 that is enclosed in a pouch made of a water-soluble polymer film. ### Claim 19 (depends on 8) A detergent composition comprising the polyethoxylated alcohol sulfate blend according to claim 8 that is enclosed in a pouch made of a water-soluble polymer film. ### Claim 20 (depends on 9) A detergent composition comprising the polyethoxylated alcohol sulfate blend according to claim 9 that is enclosed in a pouch made of a water-soluble polymer film.