Highly alkaline textile washing agent comprising protease

Patent metadata

Field	Value
Publication number	US-12492360-B2
Application number	US-202117920407-A
Country	US
Kind code	B2
Filing date	Mar 23, 2021
Priority date	Apr 26, 2020
Publication date	Dec 9, 2025
Grant date	Dec 9, 2025

Abstract

The present disclosure relates to a textile washing agent having at least one protease and a washing agent ingredient for cleaning textiles by removing protease-sensitive stains. The protease may have proteolytic activity and include an amino acid sequence having at least 70% sequence identity with the amino acid sequence given in SEQ ID NO:1 over its entire length and, in each case based on the numbering according to SEQ ID NO:1. The protease may have amino acid substitutions at the positions corresponding to positions 9, 130, 133, 144, 217, 252 and 271; and at least one additional amino acid substitution at least one of the positions corresponding to positions 6, 89, 131, 166, 189, 211 or 224. The washing agent may have a pH ranging from approximately 9 to approximately 12, measured in a 1 wt. % solution in deionized water at 20° C.

First claim

The invention claimed is:

1 . A textile washing agent, comprising:
a) at least one protease, wherein the protease has proteolytic activity and comprises an amino acid sequence which has at least 80% sequence identity with the amino acid sequence as set forth in SEQ ID NO: 1 over its entire length and, in each case based on the numbering according to SEQ ID NO: 1, has
(i) amino acid substitutions 89A and 133A,
(ii) optionally comprising substitutions corresponding to positions 9, 130, 144, 217, 252 and 271, and
(iii) optionally comprising at least one additional amino acid substitution at the position corresponding to position 6, 131, 166, 189, 211 or 224, and
b) at least one washing agent ingredient, wherein the textile washing agent has a pH ranging from approximately 9 to approximately 12, measured in a 1 wt. % solution in deionized water at 20° C.

2 . The textile washing agent according to claim 1 , wherein the protease comprises substitutions (i) 9T, 130D/V, 144K, 217M, 252T and 271E, and (ii) at least two substitutions, selected from the group consisting of 6W/F, 131H/Y/F, 166M/L/I, 189T/L/I, 211N/Q and 224A/G.

3 . The textile washing agent according to claim 1 , wherein the protease has one of the following amino acid substitution variants, in each case based on the numbering according to SEQ ID NO: 1:
(i) P9T+N130D+N144K+G166M+S189T+Y217M+N252T+Q271E; (ii) P9T+N130D+N144K+G166M+S189T+Y217M+S224A+N252T+Q271E; (iii) P9T+N130D+G131H+N144K+S189T+Y217M+S224A+N252T+Q271E; (iv) Y6W+P9T+N130D+N144K+S189T+Y217M+S224A+N252T+Q271E; (v) P9T+N130D+N144K+G166M+S211N+Y217M+N252T+Q271E; or (vi) P9T+N130D+N144K+S189T+Y217M+S224A+N252T+Q271E.

4 . The textile washing agent according to claim 1 , wherein the protease is present in an amount ranging from 1×10 −8 to 5 wt. % based on the total weight of the textile washing agent.

5 . The textile washing agent according to claim 1 , further comprising at least one additional enzyme selected from the group consisting of amylases, cellulases, hemicellulases, mannanases, tannases, xylanases, xanthanases, xyloglucanases, β-glucosidases, pectinases, carrageenases, perhydrolases, oxidases, oxidoreductases, lipase, and combinations thereof.

6 . The textile washing agent according to claim 5 , wherein the at least one additional enzyme is an amylase and wherein the at least one amylase is selected from:
a) an α-amylase which comprises an amino acid sequence which is at least 80% identical to the amino acid sequence as set forth in SEQ ID NO:2 over its entire length and optionally has at least one amino acid substitution at one of the positions 172, 202, 208, 255, 261, and combinations thereof in the numbering according to SEQ ID NO:2; b) an α-amylase which comprises an amino acid sequence which is at least 60% identical to the amino acid sequence as set forth in SEQ ID NO:3 over the entire length thereof and optionally has at least one amino acid substitution at one of the positions 9, 26, 30, 33, 82, 37, 106, 118, 128, 133, 149, 150, 160, 178, 182, 186, 193, 195, 202, 203, 214, 231, 256, 257, 258, 269, 270, 272, 283, 295, 296, 298, 299, 303, 304, 305, 311, 314, 315, 318, 319, 320, 323, 339, 345, 361, 378, 383, 419, 421, 437, 441, 444, 445, 446, 447, 450, 458, 461, 471, 482, 484, and combinations thereof, and/or a deletion at one of the positions 183 and 184 in the numbering according to SEQ ID NO:3; c) an α-amylase comprising an amino acid sequence which is at least 90% identical to the amino acid sequence as set forth in SEQ ID NO:4 over its entire length and optionally has at least one substitution and/or deletion at one or more of the positions 93, 116, 118, 129, 133, 134, 140, 142, 146, 147, 149, 151, 152, 169, 174, 183, 184, 186, 189, 193, 195, 197, 198, 200, 203, 206, 210, 212,213, 235, 243, 244, 260, 262,284, 303, 304, 320, 338, 347, 359, 418, 431, 434, 439, 447, 458, 469, 476, and 477 in the numbering according to SEQ ID NO:4; and d) combinations thereof.

7 . The textile washing agent according to claim 1 , wherein the washing agent ingredient is selected from the group consisting of surfactants, builders, complexing agents, polymers, glass corrosion inhibitors, corrosion inhibitors, bleaching agents, peroxygen compounds, bleach activators or bleach catalysts, water-miscible organic solvents, enzyme stabilizers, sequestering agents, electrolytes, pH regulators, optical brighteners, graying inhibitors, dye transfer inhibitors, foam regulators, dyes, fragrances, and combinations thereof.

8 . The textile washing agent according to claim 1 , wherein the washing agent ingredient comprises:
a) one or more anionic surfactants in an amount ranging from 5 to 20 wt. %; b) one or more non-ionic surfactants in an amount ranging from 1 to 20 wt. %; c) one or more water-soluble organic builder substances in an amount ranging from 0.5 to 10 wt. %; d) one or more complexing agents in an amount ranging from 0.01 to 5 wt. %; e) one or more graying inhibitors in an amount ranging from 0.01 to 5 wt. %; f) one or more suds suppressors in an amount ranging from 0.01 to 5 wt. %; and g) combinations thereof.

9 . The textile washing agent according to claim 1 , wherein the washing agent ingredient comprises:
a) one or more anionic surfactants in an amount ranging from 1 to 10 wt. %; b) one or more non-ionic surfactants in an amount ranging from 5 to 20 wt. %; c) one or more water-soluble or water-dispersable inorganic builder substances in an amount ranging from 1 to 10 wt. %; d) one or more fragrances in an amount ranging from 0.01 to 1 wt. %; e) one or more optical brighteners in an amount ranging from 0.01 to 5 wt. %; and f) combinations thereof.

10 . The textile washing agent according to claim 1 , wherein the pH ranges from approximately 9.5 to approximately 11.5, in a 1 wt. % solution in deionized water at 20° C.

11 . A method for cleaning textiles, wherein the method comprises:
applying k textile washing agent according to claim 1 to a textile.

12 . The method according to claim 11 , wherein an increased amount of protease-sensitive stains are removed from the textile as compared to a textile in the absence of the textile washing agent.

Assignees

• Henkel Ag & Co Kgaa

Inventors

• Degering Christian
• Wieland Susanne
• Lindner Claudia
• Islam Shohana

Classifications

• C11D2111/12

  Soft surfaces, e.g. textile · CPC title

• C12Y304/21062

  Subtilisin (3.4.21.62) · CPC title

• C12N9/54

  bacteria being Bacillus · CPC title

• C11D3/50

  Perfumes · CPC title

• C11D3/42

  Brightening agents {; Blueing agents} · CPC title