WO2022136656A2 - Compositions comprising a fatty acid sulfonate and hydrogen peroxide - Google Patents
Compositions comprising a fatty acid sulfonate and hydrogen peroxide Download PDFInfo
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- WO2022136656A2 WO2022136656A2 PCT/EP2021/087528 EP2021087528W WO2022136656A2 WO 2022136656 A2 WO2022136656 A2 WO 2022136656A2 EP 2021087528 W EP2021087528 W EP 2021087528W WO 2022136656 A2 WO2022136656 A2 WO 2022136656A2
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- Prior art keywords
- aqueous liquid
- liquid composition
- concentration
- fatty acid
- total weight
- Prior art date
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- 239000000203 mixture Substances 0.000 title claims abstract description 122
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 title claims abstract description 52
- -1 fatty acid sulfonate Chemical class 0.000 title claims abstract description 36
- 235000014113 dietary fatty acids Nutrition 0.000 title claims abstract description 32
- 229930195729 fatty acid Natural products 0.000 title claims abstract description 32
- 239000000194 fatty acid Substances 0.000 title claims abstract description 32
- 239000007788 liquid Substances 0.000 claims abstract description 82
- 239000004094 surface-active agent Substances 0.000 claims description 41
- 238000000034 method Methods 0.000 claims description 28
- 238000004140 cleaning Methods 0.000 claims description 17
- 150000001412 amines Chemical class 0.000 claims description 16
- 230000001954 sterilising effect Effects 0.000 claims description 10
- 239000002736 nonionic surfactant Substances 0.000 claims description 7
- 230000003330 sporicidal effect Effects 0.000 claims description 7
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 5
- 229920000642 polymer Polymers 0.000 claims description 5
- 239000002904 solvent Substances 0.000 claims description 5
- 241000064585 Clostridioides Species 0.000 claims description 4
- AEMRFAOFKBGASW-UHFFFAOYSA-N Glycolic acid Chemical compound OCC(O)=O AEMRFAOFKBGASW-UHFFFAOYSA-N 0.000 claims description 4
- 239000000654 additive Substances 0.000 claims description 4
- 239000003945 anionic surfactant Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical class [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims description 3
- 239000008139 complexing agent Substances 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 claims description 3
- 239000003112 inhibitor Substances 0.000 claims description 3
- 239000003381 stabilizer Substances 0.000 claims description 3
- XPFCZYUVICHKDS-UHFFFAOYSA-N 3-methylbutane-1,3-diol Chemical compound CC(C)(O)CCO XPFCZYUVICHKDS-UHFFFAOYSA-N 0.000 claims description 2
- 241000251468 Actinopterygii Species 0.000 claims description 2
- 150000001413 amino acids Chemical class 0.000 claims description 2
- 229940078443 disodium 2-sulfolaurate Drugs 0.000 claims description 2
- KKGXXVNMUUFEDZ-UHFFFAOYSA-L disodium;2-sulfonatododecanoate Chemical group [Na+].[Na+].CCCCCCCCCCC(C([O-])=O)S([O-])(=O)=O KKGXXVNMUUFEDZ-UHFFFAOYSA-L 0.000 claims description 2
- 235000013305 food Nutrition 0.000 claims description 2
- 239000011521 glass Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 235000013372 meat Nutrition 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 108090000765 processed proteins & peptides Proteins 0.000 claims description 2
- 239000004575 stone Substances 0.000 claims description 2
- 229920002994 synthetic fiber Polymers 0.000 claims description 2
- 239000002023 wood Substances 0.000 claims description 2
- MOTZDAYCYVMXPC-UHFFFAOYSA-N dodecyl hydrogen sulfate Chemical compound CCCCCCCCCCCCOS(O)(=O)=O MOTZDAYCYVMXPC-UHFFFAOYSA-N 0.000 claims 4
- 229940043264 dodecyl sulfate Drugs 0.000 claims 4
- 239000000843 powder Substances 0.000 claims 3
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 claims 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 claims 2
- 235000019333 sodium laurylsulphate Nutrition 0.000 claims 2
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 claims 1
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 claims 1
- 239000002253 acid Substances 0.000 claims 1
- 150000007513 acids Chemical class 0.000 claims 1
- 150000001298 alcohols Chemical class 0.000 claims 1
- 150000004996 alkyl benzenes Chemical class 0.000 claims 1
- 125000000217 alkyl group Chemical group 0.000 claims 1
- KDYFGRWQOYBRFD-NUQCWPJISA-N butanedioic acid Chemical compound O[14C](=O)CC[14C](O)=O KDYFGRWQOYBRFD-NUQCWPJISA-N 0.000 claims 1
- 150000002009 diols Chemical class 0.000 claims 1
- 235000019253 formic acid Nutrition 0.000 claims 1
- 239000004310 lactic acid Substances 0.000 claims 1
- 235000014655 lactic acid Nutrition 0.000 claims 1
- 102000004196 processed proteins & peptides Human genes 0.000 claims 1
- HFQQZARZPUDIFP-UHFFFAOYSA-M sodium;2-dodecylbenzenesulfonate Chemical compound [Na+].CCCCCCCCCCCCC1=CC=CC=C1S([O-])(=O)=O HFQQZARZPUDIFP-UHFFFAOYSA-M 0.000 claims 1
- IIACRCGMVDHOTQ-UHFFFAOYSA-N sulfamic acid Chemical compound NS(O)(=O)=O IIACRCGMVDHOTQ-UHFFFAOYSA-N 0.000 claims 1
- 230000000845 anti-microbial effect Effects 0.000 description 11
- 239000000047 product Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 230000000249 desinfective effect Effects 0.000 description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- 238000004659 sterilization and disinfection Methods 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- ULSUXBXHSYSGDT-UHFFFAOYSA-N tangeretin Chemical compound C1=CC(OC)=CC=C1C1=CC(=O)C2=C(OC)C(OC)=C(OC)C(OC)=C2O1 ULSUXBXHSYSGDT-UHFFFAOYSA-N 0.000 description 3
- KBPLFHHGFOOTCA-UHFFFAOYSA-N 1-Octanol Chemical compound CCCCCCCCO KBPLFHHGFOOTCA-UHFFFAOYSA-N 0.000 description 2
- KFSLWBXXFJQRDL-UHFFFAOYSA-N Peracetic acid Chemical compound CC(=O)OO KFSLWBXXFJQRDL-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 230000000844 anti-bacterial effect Effects 0.000 description 2
- 239000004599 antimicrobial Substances 0.000 description 2
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 229930003935 flavonoid Natural products 0.000 description 2
- 150000002215 flavonoids Chemical class 0.000 description 2
- 235000017173 flavonoids Nutrition 0.000 description 2
- BXWNKGSJHAJOGX-UHFFFAOYSA-N hexadecan-1-ol Chemical compound CCCCCCCCCCCCCCCCO BXWNKGSJHAJOGX-UHFFFAOYSA-N 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 108090000623 proteins and genes Proteins 0.000 description 2
- 102000004169 proteins and genes Human genes 0.000 description 2
- 238000012113 quantitative test Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000009736 wetting Methods 0.000 description 2
- HVCOBJNICQPDBP-UHFFFAOYSA-N 3-[3-[3,5-dihydroxy-6-methyl-4-(3,4,5-trihydroxy-6-methyloxan-2-yl)oxyoxan-2-yl]oxydecanoyloxy]decanoic acid;hydrate Chemical compound O.OC1C(OC(CC(=O)OC(CCCCCCC)CC(O)=O)CCCCCCC)OC(C)C(O)C1OC1C(O)C(O)C(O)C(C)O1 HVCOBJNICQPDBP-UHFFFAOYSA-N 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- 208000025721 COVID-19 Diseases 0.000 description 1
- 239000004155 Chlorine dioxide Substances 0.000 description 1
- 241000193403 Clostridium Species 0.000 description 1
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 1
- 229930186217 Glycolipid Natural products 0.000 description 1
- 241000408529 Libra Species 0.000 description 1
- 150000001204 N-oxides Chemical class 0.000 description 1
- OBIOZWXPDBWYHB-UHFFFAOYSA-N Nobiletin Natural products C1=CC(OC)=CC=C1C1=C(OC)C(=O)C2=C(OC)C(OC)=C(OC)C(OC)=C2O1 OBIOZWXPDBWYHB-UHFFFAOYSA-N 0.000 description 1
- 206010040880 Skin irritation Diseases 0.000 description 1
- 125000005227 alkyl sulfonate group Chemical group 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- BUOSLGZEBFSUDD-BGPZCGNYSA-N bis[(1s,3s,4r,5r)-4-methoxycarbonyl-8-methyl-8-azabicyclo[3.2.1]octan-3-yl] 2,4-diphenylcyclobutane-1,3-dicarboxylate Chemical compound O([C@H]1C[C@@H]2CC[C@@H](N2C)[C@H]1C(=O)OC)C(=O)C1C(C=2C=CC=CC=2)C(C(=O)O[C@@H]2[C@@H]([C@H]3CC[C@H](N3C)C2)C(=O)OC)C1C1=CC=CC=C1 BUOSLGZEBFSUDD-BGPZCGNYSA-N 0.000 description 1
- 239000003093 cationic surfactant Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 235000019398 chlorine dioxide Nutrition 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229940117583 cocamine Drugs 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 125000002704 decyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000004925 denaturation Methods 0.000 description 1
- 230000036425 denaturation Effects 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 150000002191 fatty alcohols Chemical class 0.000 description 1
- ZSIAUFGUXNUGDI-UHFFFAOYSA-N hexan-1-ol Chemical compound CCCCCCO ZSIAUFGUXNUGDI-UHFFFAOYSA-N 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 229940042880 natural phospholipid Drugs 0.000 description 1
- MRIAQLRQZPPODS-UHFFFAOYSA-N nobiletin Chemical compound C1=C(OC)C(OC)=CC=C1C1=CC(=O)C2=C(OC)C(OC)=C(OC)C(OC)=C2O1 MRIAQLRQZPPODS-UHFFFAOYSA-N 0.000 description 1
- 125000002347 octyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 244000052769 pathogen Species 0.000 description 1
- 125000000864 peroxy group Chemical group O(O*)* 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 230000036556 skin irritation Effects 0.000 description 1
- 231100000475 skin irritation Toxicity 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 235000008603 tangeritin Nutrition 0.000 description 1
- 230000003612 virological effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/02—Anionic compounds
- C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
- C11D1/28—Sulfonation products derived from fatty acids or their derivatives, e.g. esters, amides
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/16—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using chemical substances
- A61L2/18—Liquid substances or solutions comprising solids or dissolved gases
- A61L2/186—Peroxide solutions
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/39—Organic or inorganic per-compounds
- C11D3/3947—Liquid compositions
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/48—Medical, disinfecting agents, disinfecting, antibacterial, germicidal or antimicrobial compositions
Definitions
- compositions Comprising a Fatty Acid Sulfonate and Hydrogen Peroxide
- the present invention relates to compositions comprising a C 12 to C 14 fatty acid sulfonate and hydrogen peroxide as well as the use of respective compositions in methods for cleaning or disinfecting surfaces.
- a wide range of hygiene products for cleaning and disinfecting (solid) surfaces are commercially available. In general it is distinguished between products to be used in methods of cleaning a surface and products to be used in methods of disinfecting a surface.
- US 6,479,454 discloses compositions comprising hydrogen peroxide and an amine oxide.
- US 6,444,230 discloses compositions comprising peroxy compounds, fatty alcohol ethoxylates and an amine oxide.
- compositions comprising a surfactant for reduction of surface tension and a compound having anti-microbial activity have an unpredictable effects on anti-microbial activity.
- surfactants SDS and SLES will significantly reduce surface tension, however, their effects on protein denaturation causes an inhibition of anti-microbial effects of a composition comprising SDS and/or SLES as well as a compound with anti-microbial activity.
- aqueous liquid composition comprising a C 12 to C 14 fatty acid sulfonate in a concentration of 0.01 to 0.9 w/w% and hydrogen peroxide in a concentration of 0.01 to 5.0 w/w%, wherein all concentrations are relative to the total weight of the aqueous liquid composition.
- the C 12 to C 14 fatty acid sulfonate is disodium 2-sulfolaurate can be characterized by the following formula:
- a respective a C 12 to C 14 fatty acid sulfonate is commercially available from BASF under the trademark Texapon SFA.
- composition comprising a C 12 to C 14 fatty acid sulfonate in a concentration of 0.01 to 0.9 w/w% and hydrogen peroxide in very low concentrations, such as a concentration of the C 12 to C 14 fatty acid sulfonate of 0.01 to 0.9 w/w% and a concentration of the hydrogen peroxide of 0.01 to 5.0 w/w%, provides a number of advantages in methods for cleaning and disinfecting surfaces, including:
- compositions comprising a C 12 to C 14 fatty acid sulfonate in extremely low concentration of 0.05 w/w% have a significantly higher anti-microbial activity as determined by the 4-field-test carried out according to EN 16615
- compositions can be used at mild pH values, namely at pH values between 4 and 8;
- the composition achieves a very significant reduction of the bacteria and even spores present on the surfaces treated.
- aqueous liquid compositions of the present invention have a significantly higher anti-microbial activity as determined by the 4-field-test carried out according to EN 16615.
- the aqueous liquid compositions of the present invention may further comprise additional components selected from surfactants, stabilizers, complexing agents, pH regulators, corrosion inhibitors and/or additives.
- Compositions comprising a combination of different surfactants, in particular a combination of the C 12 to C 14 fatty acid sulfonate and further non-ionic surfactants, anionic surfactants and/or cationic surfactants are preferred, for example a polymer-based non-ionic surfactants.
- the aqueous liquid compositions of the present invention preferably have a dynamic surface tension of less than 26 mN/m after 30 seconds, preferably less than 24 mN/m after 30 seconds, more preferably less than 23 mN/m after 30 seconds.
- the dynamic surface tension can be determined using a pressure tensiometer for example by the BPT Mobilie of Kruss using the method as illustrated in Example 2.
- the aqueous liquid compositions of the present invention are characterized in achieving a reduction of Clostridioides difficele sporicidal activity of at least log 2 in a 4-field test after 5 minutes, preferably at least log 3 or at least log 4 in a 4-field test after 5 minutes.
- the a reduction of Clostridioides difficele sporicidal activity is determined using a 4-field-test for determining sporicidal activity on non-porous surfaces in accordance with EN 16615 as described in Example 3.
- the concentrations of the components of the compositions are provided as w/w%, wherein all concentrations are relative to the total weight of the aqueous liquid composition.
- the aqueous liquid compositions of the invention may contain the C 12 to C 14 fatty acid sulfonate in a concentration of 0.05 to 0.50 w/w% relative to the total weight of the aqueous liquid composition.
- the aqueous liquid compositions of the invention preferably contain the hydrogen peroxide in a concentration of 0.05 to 3.5 w/w% relative to the total weight of the aqueous liquid composition.
- aqueous liquid compositions of the invention can further be characterized by a pH in the range of 2.0 and 8.0, preferably in the range of 4.0 to 6.0.
- the aqueous liquid compositions of the present invention further comprise additional surfactants selected from amine oxide surfactants, for example the kryptoionic surfactant I cocamine oxide, amine, C12-14 Alkyldimethyl, N-Oxides, such as the product commercially available from Libra under the trademark LIBRANOX AO12/14.
- additional surfactants selected from amine oxide surfactants, for example the kryptoionic surfactant I cocamine oxide, amine, C12-14 Alkyldimethyl, N-Oxides, such as the product commercially available from Libra under the trademark LIBRANOX AO12/14.
- the aqueous liquid compositions of the present invention further comprise additional surfactants selected from non-ionic surfactants, polymer-based surfactant made from hexan-l-ol and ethylene oxide (C6 and 5 moles etylene oxid), such as the products commercially available from BASF under the trademark Lutensol CS 6250, Lutensol XL40, Lutensol XL60, Lutensol XL80 or combinations thereof.
- additional surfactants selected from non-ionic surfactants, polymer-based surfactant made from hexan-l-ol and ethylene oxide (C6 and 5 moles etylene oxid), such as the products commercially available from BASF under the trademark Lutensol CS 6250, Lutensol XL40, Lutensol XL60, Lutensol XL80 or combinations thereof.
- Combinations of surfactants comprising C6 to C8 alcohol ethoxylates and CIO to C16 alcohol ethoxylates are preferred, in particular in a relative concentration of the C6 to C8 alcohol ethoxylates to the CIO to C16 alcohol ethoxylates of 6: 1 to 1 : 1, preferably in the range of 3: 1 to 5: 1, most preferred in the range of 4: 1.
- the aqueous liquid compositions of the present invention further comprise surfactants selected from amine oxide and Lutensol in a relative concentration range of amine oxide : Lutensol of 4: 1.
- the aqueous liquid compositions of the present invention can contain SLES in a concentration of less than 0.15 w/w %.
- the aqueous liquid compositions of the present invention most preferably do not contain SLS or SLES.
- aqueous liquid compositions of the present invention may further contain surfactants selected from the group of (1) phosphoric acid-based ester surfactants (C-6 to C-14), such as decyl and/or octyl esters sold by ILCO Chemikalien GmbH under the trademark "ILCO- Phos 204" (CAS No.
- N-acylated peptide and/or N-acylated amino acid surfactants such as the product commercially available as “Protelan ENS” from Zschimmer & Schwarz or “Perlastan” from Schill + Seilacher, such as "Perlastan SC 25 NKPF”
- alkyl ether carboxylate surfactants such as "Akypo LF6" or “Akypo LF2” from Kao Chemicals
- SAS secondary alkyl sulfonate
- Mersolat H 95 from Lanxess (5) glycolipid containing sophorolipids and/or rhamno-lipids surfactants, such as the product Rewoferm LS ONE from EVONIK and combinations thereof.
- aqueous liquid compositions of the present invention may further contain additional anti-microbial agents selected from the group of (1) chlorine dioxide and (2) peracetic acid or mixtures thereof.
- aqueous liquid compositions of the present invention may further contain secondary plant compounds selected from the group of (1) flavonoids, such as Tangeritin, (2) flavonoids, such as nobiletin, or mixtures thereof.
- flavonoids such as Tangeritin
- flavonoids such as nobiletin
- aqueous liquid compositions of the present invention may further contain solvents selected from the group of (1) ethanol and (2) isopentyldiol or mixtures thereof.
- aqueous liquid compositions of the present invention include (1) (bio-) polymers, for temporary coating of surfaces and/or compensation of protein agressivity, such as "NOVOTEC CB800", GELITA, (2) poyalcoxyl ethers, such as "GEOlube 75 W 270" from GEO SECIALYTY CHEMICALS, and (3) natural phospholipids, such as Natipide ECO from Lipoid Kosmetik AG and mixtures thereof.
- the present invention provides methods of cleaning or sterilizing a surface, comprising a step of treating the surface with an aqueous liquid composition according to the present invention as described above.
- the method comprises treating a surface with a composition comprising a C12 to C14 fatty acid sulfonate in a concentration of 0.01 to 0.9 w/w% and hydrogen peroxide in a concentration of 0.01 to 5.0 w/w%, wherein all concentrations are relative to the total weight of the aqueous liquid composition.
- the surface may comprises or made of a synthetic material, glass, stone, metal, wood or a plant material or a skin, a food surface, a meat or fish surface.
- the term "sterilizing” is used to characterize a method which achieves a significant reduction of a bacterial or viral contamination. However, the term does not necessarily require that all microorganisms on the surfaces treated in the methods of the present invention are killed.
- the present invention provides methods of cleaning or sterilizing a surface comprising the following steps:
- the methods of the present invention preferably achieve a reduction of Clostridium difficele sporicidal activity of at least log 2 in a 4-field test, preferably at least log 3 in a 4-field test explained in more detail below.
- the invention provides container comprising at least two chambers and a dispensing device, wherein one chamber comprises an aqueous liquid composition comprising a C 12 to C 14 fatty acid sulfonate and the at least one other chamber comprises an aqueous liquid composition comprising hydrogen peroxide.
- aqueous liquid composition comprising a C 12 to C 14 fatty acid sulfonate
- the at least one other chamber comprises an aqueous liquid composition comprising hydrogen peroxide.
- the Wilhelmy plate method using the Krüss Force Tensiometer - K1OO was employed to determine the static surface tension.
- a platinum plate of known geometry with a roughened surface is brought into contact with the liquid.
- the wetting and contact line corresponds to the circumference of the plate.
- the force with which the liquid acts on the plate along the wetting line is measured. This force is directly proportional to the surface tension of the liquid.
- the platinum plate was cleaned with distilled water and 2-propanol before each measurement and then annealed.
- a Bubble Pressure Tensiometer - BPT Mobile from Kruss was used to determine the dynamic surface tension. The measurements were carried out at 20 °C with disposable capillary in 7 steps over a period of 10 - 30000 ms.
- the anti-microbial activity of the compositions was determined using the quantitative test method for the evaluation of bactericidal and yeasticidal activity on non-porous surfaces with mechanical action employing wipes in the medical area (4-field-test; phase 2, Step 2) I based on prWI - sporicidal activity on non-porous surfaces 4-field-test (April 2019), EN 16615 (2015). Table 4
- aqueous composition comprising 2% hydrogen peroxide as the only active component merely achieved a reduction factor of 2,77 log after 15 minutes and was thus significantly inferior to the compositions of the invention.
- the anti-microbial activity of the following further compositions was determined using the quantitative test method for the evaluation of bactericidal and yeasticidal activity on non- porous surfaces with mechanical action employing wipes in the medical area (4-field-test; phase 2, Step 2) I based on prWI - sporicidal activity on non-porous surfaces 4-field-test (April 2019), EN 16615 (2015). i ! j
- TXP containing 30% TXP
- the mixture was heated to 60 °C in a water bath, held at that temperature for one h, and the temperature was slowly lowered (over a period of 24 h) to 38 °C.
- the sample was held at this temperature for 48 h.
- the sample was stored for 5 weeks in a centrifuge tube at room temperature.
- the sample separated into a sediment of about 12.5 ml and a transparent supernatant of about 37.5 ml at a pH of about 5.5.
Abstract
The present invention provides aqueous liquid compositions comprising a C12 to C14 fatty acid sulfonate in a concentration of 0.01 to 0.9 w/w% and hydrogen peroxide in a concentration of 0.01 to 5.0 w/w%, wherein all concentrations are relative to the total weight of the aqueous liquid composition.
Description
Compositions Comprising a Fatty Acid Sulfonate and Hydrogen Peroxide
The present invention relates to compositions comprising a C12 to C14 fatty acid sulfonate and hydrogen peroxide as well as the use of respective compositions in methods for cleaning or disinfecting surfaces.
A wide range of hygiene products for cleaning and disinfecting (solid) surfaces are commercially available. In general it is distinguished between products to be used in methods of cleaning a surface and products to be used in methods of disinfecting a surface.
Exceptionally, US 6,479,454 discloses compositions comprising hydrogen peroxide and an amine oxide. US 6,444,230 discloses compositions comprising peroxy compounds, fatty alcohol ethoxylates and an amine oxide.
However, it is also well known that compositions comprising a surfactant for reduction of surface tension and a compound having anti-microbial activity have an unpredictable effects on anti-microbial activity. For example, while the well-known surfactants SDS and SLES, will significantly reduce surface tension, however, their effects on protein denaturation causes an inhibition of anti-microbial effects of a composition comprising SDS and/or SLES as well as a compound with anti-microbial activity.
Spore-forming pathogens, such as the bacterium Clostridioides difficele cause major problems for cleaning and disinfection in hospitals and public care facilities. The need to provide improved cleaning and disinfection compositions is further evidenced by the current COVID-19 pandemic. For modern hygiene management, it would therefore be desirable to have compositions for cleaning and disinfection, which combine high anti-microbial activity with environmental safety and cost-efficiency.
Summary of the Present Invention
The above problems are solved by the present invention, which provides aqueous liquid composition comprising a C12 to C14 fatty acid sulfonate in a concentration of 0.01 to 0.9 w/w% and hydrogen peroxide in a concentration of 0.01 to 5.0 w/w%, wherein all concentrations are relative to the total weight of the aqueous liquid composition. The C12 to C14 fatty acid sulfonate is disodium 2-sulfolaurate can be characterized by the following formula:
A respective a C12 to C14 fatty acid sulfonate is commercially available from BASF under the trademark Texapon SFA.
The present inventor surprisingly found that a composition comprising a C12 to C14 fatty acid sulfonate in a concentration of 0.01 to 0.9 w/w% and hydrogen peroxide in very low concentrations, such as a concentration of the C12 to C14 fatty acid sulfonate of 0.01 to 0.9 w/w% and a concentration of the hydrogen peroxide of 0.01 to 5.0 w/w%, provides a number of advantages in methods for cleaning and disinfecting surfaces, including:
(1) compositions comprising a C12 to C14 fatty acid sulfonate in extremely low concentration of 0.05 w/w% have a significantly higher anti-microbial activity as determined by the 4-field-test carried out according to EN 16615
(2) the compositions can be used at mild pH values, namely at pH values between 4 and 8;
(3) significant reduction of the surface tension of the composition in comparison to other compositions comprising a surfactant and an anti-microbial compound which is required for cleaning activity;
(4) significant cleaning and anti-microbial effects are obtained at very low concentrations;
(5) the C12 to C14 fatty acid sulfonate does not cause any skin irritation;
(6) the composition achieves a very significant reduction of the bacteria and even spores present on the surfaces treated.
In particular, it has been found that the aqueous liquid compositions of the present invention have a significantly higher anti-microbial activity as determined by the 4-field-test carried out according to EN 16615.
The aqueous liquid compositions of the present invention may further comprise additional components selected from surfactants, stabilizers, complexing agents, pH regulators, corrosion inhibitors and/or additives. Compositions comprising a combination of different surfactants, in particular a combination of the C12 to C14 fatty acid sulfonate and further non-ionic surfactants, anionic surfactants and/or cationic surfactants are preferred, for example a polymer-based non-ionic surfactants.
The aqueous liquid compositions of the present invention preferably have a dynamic surface tension of less than 26 mN/m after 30 seconds, preferably less than 24 mN/m after 30 seconds, more preferably less than 23 mN/m after 30 seconds. The dynamic surface tension can be determined using a pressure tensiometer for example by the BPT Mobilie of Kruss using the method as illustrated in Example 2.
In a further aspect, the aqueous liquid compositions of the present invention are characterized in achieving a reduction of Clostridioides difficele sporicidal activity of at least log 2 in a 4-field test after 5 minutes, preferably at least log 3 or at least log 4 in a 4-field test after 5 minutes. The a reduction of Clostridioides difficele sporicidal activity is determined using a 4-field-test for determining sporicidal activity on non-porous surfaces in accordance with EN 16615 as described in Example 3.
In the context of the present application, the concentrations of the components of the compositions are provided as w/w%, wherein all concentrations are relative to the total weight of the aqueous liquid composition.
Accordingly, the aqueous liquid compositions of the invention may contain the C12 to C14 fatty acid sulfonate in a concentration of 0.05 to 0.50 w/w% relative to the total weight of the aqueous liquid composition.
The aqueous liquid compositions of the invention preferably contain the hydrogen peroxide in a concentration of 0.05 to 3.5 w/w% relative to the total weight of the aqueous liquid composition.
The aqueous liquid compositions of the invention can further be characterized by a pH in the range of 2.0 and 8.0, preferably in the range of 4.0 to 6.0.
In a preferred embodiment, the aqueous liquid compositions of the present invention further comprise additional surfactants selected from amine oxide surfactants, for example the kryptoionic surfactant I cocamine oxide, amine, C12-14 Alkyldimethyl, N-Oxides, such as the product commercially available from Libra under the trademark LIBRANOX AO12/14.
In a related embodiment, the aqueous liquid compositions of the present invention further comprise additional surfactants selected from non-ionic surfactants, polymer-based surfactant made from hexan-l-ol and ethylene oxide (C6 and 5 moles etylene oxid), such as the products commercially available from BASF under the trademark Lutensol CS 6250, Lutensol XL40, Lutensol XL60, Lutensol XL80 or combinations thereof. Combinations of
surfactants comprising C6 to C8 alcohol ethoxylates and CIO to C16 alcohol ethoxylates are preferred, in particular in a relative concentration of the C6 to C8 alcohol ethoxylates to the CIO to C16 alcohol ethoxylates of 6: 1 to 1 : 1, preferably in the range of 3: 1 to 5: 1, most preferred in the range of 4: 1.
In a further related embodiment, the aqueous liquid compositions of the present invention further comprise surfactants selected from amine oxide and Lutensol in a relative concentration range of amine oxide : Lutensol of 4: 1.
The aqueous liquid compositions of the present invention can contain SLES in a concentration of less than 0.15 w/w %. The aqueous liquid compositions of the present invention most preferably do not contain SLS or SLES.
The aqueous liquid compositions of the present invention may further contain surfactants selected from the group of (1) phosphoric acid-based ester surfactants (C-6 to C-14), such as decyl and/or octyl esters sold by ILCO Chemikalien GmbH under the trademark "ILCO- Phos 204" (CAS No. : 68186-45-8), (2) N-acylated peptide and/or N-acylated amino acid surfactants, such as the product commercially available as "Protelan ENS" from Zschimmer & Schwarz or "Perlastan" from Schill + Seilacher, such as "Perlastan SC 25 NKPF", (3) alkyl ether carboxylate surfactants, such as "Akypo LF6" or "Akypo LF2" from Kao Chemicals, (4) secondary alkyl sulfonate (SAS) surfactants, such as Mersolat H 95 from Lanxess, (5) glycolipid containing sophorolipids and/or rhamno-lipids surfactants, such as the product Rewoferm LS ONE from EVONIK and combinations thereof.
The aqueous liquid compositions of the present invention may further contain additional anti-microbial agents selected from the group of (1) chlorine dioxide and (2) peracetic acid or mixtures thereof.
The aqueous liquid compositions of the present invention may further contain secondary plant compounds selected from the group of (1) flavonoids, such as Tangeritin, (2) flavonoids, such as nobiletin, or mixtures thereof.
The aqueous liquid compositions of the present invention may further contain solvents selected from the group of (1) ethanol and (2) isopentyldiol or mixtures thereof.
Further additives that can be encompassed by the aqueous liquid compositions of the present invention include (1) (bio-) polymers, for temporary coating of surfaces and/or compensation of protein agressivity, such as "NOVOTEC CB800", GELITA, (2) poyalcoxyl
ethers, such as "GEOlube 75 W 270" from GEO SECIALYTY CHEMICALS, and (3) natural phospholipids, such as Natipide ECO from Lipoid Kosmetik AG and mixtures thereof.
In a related embodiment the present invention provides methods of cleaning or sterilizing a surface, comprising a step of treating the surface with an aqueous liquid composition according to the present invention as described above. Accordingly in one embodiment the method comprises treating a surface with a composition comprising a C12 to C14 fatty acid sulfonate in a concentration of 0.01 to 0.9 w/w% and hydrogen peroxide in a concentration of 0.01 to 5.0 w/w%, wherein all concentrations are relative to the total weight of the aqueous liquid composition. The surface may comprises or made of a synthetic material, glass, stone, metal, wood or a plant material or a skin, a food surface, a meat or fish surface.
In the context of the present application, the term "sterilizing" is used to characterize a method which achieves a significant reduction of a bacterial or viral contamination. However, the term does not necessarily require that all microorganisms on the surfaces treated in the methods of the present invention are killed.
In a further embodiment, the present invention provides methods of cleaning or sterilizing a surface comprising the following steps:
(a) applying a C12 to C14 fatty acid sulfonate in a concentration of 0.01 to 0.9 w/w% to the surface; and subsequently
(b) applying hydrogen peroxide in a concentration of 0.01 to 5.0 w/w% to the surface.
The methods of the present invention preferably achieve a reduction of Clostridium difficele sporicidal activity of at least log 2 in a 4-field test, preferably at least log 3 in a 4-field test explained in more detail below.
In a further aspect the invention provides container comprising at least two chambers and a dispensing device, wherein one chamber comprises an aqueous liquid composition comprising a C12 to C14 fatty acid sulfonate and the at least one other chamber comprises an aqueous liquid composition comprising hydrogen peroxide.
Overview over the surfactants: [ | ' t , j | i j | | | I j j l | ! >
Table 1
Example 1 (Influence of TXP on static interfacial tension in mN/m):
The Wilhelmy plate method using the Krüss Force Tensiometer - K1OO was employed to determine the static surface tension.
A platinum plate of known geometry with a roughened surface is brought into contact with the liquid. The wetting and contact line corresponds to the circumference of the plate. The force with which the liquid acts on the plate along the wetting line is measured. This force is directly proportional to the surface tension of the liquid. The platinum plate was cleaned with distilled water and 2-propanol before each measurement and then annealed.
All measurements were performed with the following parameters:
Table 2
Example 2: (Influence of TXP on dynamic surface tension in mN/m)
A Bubble Pressure Tensiometer - BPT Mobile from Kruss was used to determine the dynamic surface tension. The measurements were carried out at 20 °C with disposable capillary in 7 steps over a period of 10 - 30000 ms. | ! *
Table 3
Example 3 (influence of TXP on disinfection performance)
The anti-microbial activity of the compositions was determined using the quantitative test method for the evaluation of bactericidal and yeasticidal activity on non-porous surfaces with mechanical action employing wipes in the medical area (4-field-test; phase 2, Step 2) I based on prWI - sporicidal activity on non-porous surfaces 4-field-test (April 2019), EN 16615 (2015).
Table 4
These results were compared to the anti-microbial activity of an aqueous composition comprising 2% hydrogen peroxide as the only component using the same quantitive assay conditions, i.e., the conditions of EN 16615 (2015).
The aqueous composition comprising 2% hydrogen peroxide as the only active component merely achieved a reduction factor of 2,77 log after 15 minutes and was thus significantly inferior to the compositions of the invention.
Example 4
The anti-microbial activity of the following further compositions was determined using the quantitative test method for the evaluation of bactericidal and yeasticidal activity on non- porous surfaces with mechanical action employing wipes in the medical area (4-field-test; phase 2, Step 2) I based on prWI - sporicidal activity on non-porous surfaces 4-field-test (April 2019), EN 16615 (2015). i ! j | | 1 |
1 1 ! )
Example 5
Commercial TXP as described above can be further purified before use in the above methods.
In one example, 8.333 g TXP (containing 30% TXP) was added to a centrifuge tube containing 50 ml of deionized water and 0.15 g of glycolic acid and mixed by shaking. The mixture was heated to 60 °C in a water bath, held at that temperature for one h, and the temperature was slowly lowered (over a period of 24 h) to 38 °C. The sample was held at this temperature for 48 h. The sample was stored for 5 weeks in a centrifuge tube at room temperature.
The sample separated into a sediment of about 12.5 ml and a transparent supernatant of about 37.5 ml at a pH of about 5.5.
Claims
Claims 1. Aqueous liquid composition comprising a C12 to C14 fatty acid sulfonate in a concentration of 0.01 to 0.9 w/w% and hydrogen peroxide in a concentration of 0.01 to 5.0 w/w%, wherein all concentrations are relative to the total weight of the aqueous liquid composition.
2. Aqueous liquid composition according to claim 1, wherein the C12 to C14 fatty acid sulfonate is disodium 2-sulfolaurate characterized by the following formula:
3. Aqueous liquid composition according to claim 1 or 2, wherein the C12 to C14 fatty acid sulfonate is present in a concentration of 0.05 to 0.50 w/w% relative to the total weight of the aqueous liquid composition.
4. Aqueous liquid composition according to one of claims 1 to 3, wherein hydrogen peroxide is present in a concentration of 0.05 to 3.5 w/w% relative to the total weight of the aqueous liquid composition.
5. Aqueous liquid composition according to one of claims 1 to 4, wherein the composition has a pH in the range of 2.0 and 8.0, preferably in the range of 4.0 to 6.0.
6. Aqueous liquid composition according to one of claims 1 to 5, wherein the composition further comprises an amine oxide surfactant in a concentration of 0.01 to 1.2, wherein all concentrations are relative to the total weight of the aqueous liquid composition.
7. Aqueous liquid composition according to one of claims 1 to 6, wherein the composition further comprises a lauryl sulfate surfactant in a concentration of 0.2 to 2.6, wherein all concentrations are relative to the total weight of the aqueous liquid composition.
8. Aqueous liquid composition according to one of claims 1 to 7, wherein the composition further comprises components selected from surfactants, stabilizers,
complexing agents, pH regulators, corrosion inhibitors and/or further additives, wherein non-ionic surfactants are preferred, for example a polymer-based non-ionic surfactants. 9. Method of cleaning or sterilizing a surface, comprising a step of treating the surface with an aqueous liquid composition comprising a C12 to C14 fatty acid sulfonate in a concentration of 0.01 to 0.
9 w/w% and hydrogen peroxide in a concentration of 0.01 to 5.0 w/w%, wherein all concentrations are relative to the total weight of the aqueous liquid composition.
10. Method of cleaning or sterilizing a surface according to claim 7, wherein the surface comprises or is made of a synthetic material, glass, stone, metal, wood or plant material or skin, a food surface, a meat or fish surface.
11. Method of cleaning or sterilizing a surface according to claim 7 to 10, further comprising a step of producing the aqueous liquid composition comprising a C12 to C14 fatty acid sulfonate and hydrogen peroxide within less than 3 hours prior to use by mixing an aqueous liquid comprising the C12 to C14 fatty acid sulfonate and an aqueous liquid comprising hydrogen peroxide such that a composition is obtained, wherein the concentration of the C12 to C14 fatty acid sulfonate is 0.01 to 0.9 w/w% and the concentration of the hydrogen peroxide is 0.01 to 5.0 w/w%, wherein all concentrations are relative to the total weight of the aqueous liquid composition.
12. Aqueous liquid composition according to one of claims 1 to 11, wherein the composition further comprises at least one surfactant selected from the group of sodium lauryl sulfates (SLES and/or SLS), in a concentration 0.10% to 6.00%, preferably 0.20% to 2.50%, particularly preferably 0.30% to 1.80%, most preferably 0.60% to 1.40%, wherein all concentrations are relative to the total weight of the aqueous liquid composition.
13. Aqueous liquid composition according to one of claims 1 to 12, wherein the composition further comprises at least one surfactant from the group alkylbenzenesulfonates (SAS u./o. SDBS), in a concentration 0.02 % to 1.20 %, preferably 0.10 % to 0.75 %, wherein all concentrations are relative to the total weight of the aqueous liquid composition.
14. Aqueous liquid composition according to one of claims 1 to 13, wherein the composition further comprises at least one surfactant from the group of amine
oxides, in a concentration 0.02% to 1.20%, preferably 0.10% to 0.75 %, wherein all concentrations are relative to the total weight of the aqueous liquid composition.
15. Aqueous liquid composition according to claim 14, wherein the the amine oxide has a chain length of C12-14.
16. Aqueous liquid composition according to one of claims 1 to 15, wherein the composition further comprises at least one surfactant from the group of alkyl polyglycosides, in a concentration 0.20% to 6.0%, preferably 0.30% to 2.60%, wherein all concentrations are relative to the total weight of the aqueous liquid composition.
17. Aqueous liquid composition according to one of claims 1 to 16, wherein the composition further comprises at least one alcohol in the concentration 0.1 % to 49 %, preferably ethanol and/or 2-propanol, wherein all concentrations are relative to the total weight of the aqueous liquid composition.
18. Aqueous liquid composition according to one of claims 1 to 17, wherein the composition further comprises water and alcohols and at least one further solvent in a concentration of 0.1 % to 6 %, preferably a diol, more preferred isopentyldiol, wherein all concentrations are relative to the total weight of the aqueous liquid composition.
19. Aqueous liquid composition according to one of claims 1 to 18, wherein the composition further comprises at least two acids selected from the group consisting of glycolic acid, succinic acid, formic acid, amidosulfonic acid, lactic acid, in a concentration of 0.01% to 1.50%, wherein all concentrations are relative to the total weight of the aqueous liquid composition.
20. Aqueous liquid composition according to one of claims 1 to 19, wherein the composition further comprises at least one surfactant from the group of N-acylated peptides and/or N-acylated amino acids, in the concentration, 0.03% to 2.60%, preferably 0.09% to 1.60%, wherein all concentrations are relative to the total weight of the aqueous liquid composition.
21. Aqueous liquid composition according to one of claims 1 to 20, wherein the sum of all anionic surfactants in the solution and the at least one amine oxide is present in a ratio of from 8: 1 to 2: 1, preferably from 6: 1 to 2: 1, more preferably from 6: 1 to 3: 1,
most preferably from 5: 1 to 4:1, preferably the group of anionic surfactants being more concentrated than the group of amine oxide surfactants.
22. Aqueous liquid composition according to one of claims 1 to 21, wherein the composition further comprises alkyl benzene sulfonates in a ratio to the group of amine oxides 6: 1 to 1 :6, preferably in a ratio of 3: 1 to 1 :3, more preferred in a ratio of 1 : 1.
23. Method of producing an aqueous liquid composition comprising a C12 to C14 fatty acid sulfonate in a concentration of 0.01 to 0.9 w/w% and hydrogen peroxide in a concentration of 0.01 to 5.0 w/w%, wherein all concentrations are relative to the total weight of the aqueous liquid composition, wherein the method comprises steps of:
(a) mixing the C12 to C14 fatty acid sulfonate with an aqueous liquid;
(b) optionally adding further components, such as anionic surfactants;
(c) adding hydrogen peroxide.
24. Method of producing an aqueous liquid composition according to claim 23, further comprising an amine oxide surfactant but no a lauryl sulfate surfactant, wherein the amine oxide surfactant is dissolved in the solvent before the C12 to C14 fatty acid sulfonate is added.
25. Method of producing an aqueous liquid composition according to claim 23 or 24, further comprising a lauryl sulfate and an amine oxide surfactant, wherein the lauryl sulfate surfactant is dissolved in the solvent before the amine oxide surfactant is added.
26. Method of producing an aqueous liquid composition according to claim 23, further comprising a alkylpolyglycoside surfactant and wherein
(a) the alkylpolyglycoside surfactant is acidified and mixed with the solvent comprising the other surfactants; or
(b) the surfactants other than the alkylpolyglycoside surfactant are mixed, the mixture is acidified and the alkylpolyglycoside surfactant is added.
27. Container comprising at least two chambers and a dispensing device, wherein one chamber comprises an aqueous liquid composition comprising a C12 to C14 fatty acid sulfonate and the at least one other chamber comprises an aqueous liquid composition comprising hydrogen peroxide.
28. Container according to claim 27 , the dispensing device mixes the at least two components upon dispensing such that an aqueous liquid composition comprising a C12 to C14 fatty acid sulfonate and hydrogen peroxide is dispensed, wherein the liquid composition comprises the C12 to C14 fatty acid sulfonate in a concentration of 0.01 to 0.9 w/w% and hydrogen peroxide in a concentration of 0.01 to 5.0 w/w%, wherein all concentrations are relative to the total weight of the aqueous liquid composition.
29. Method of cleaning or sterilizing a surface comprising the following steps:
(a) applying a C12 to C14 fatty acid sulfonate in a concentration of 0.01 to 0.9 w/w% to the surface; and subsequently
(b) applying hydrogen peroxide in a concentration of 0.01 to 5.0 w/w% to the surface.
30. Method of cleaning or sterilizing a surface according to claim 29, wherein the aqueous liquid composition has a pH in the range of 2.0 and 8.0, preferably in the range of 4.0 to 6.0.
31. Method of cleaning or sterilizing a surface according to one of claims 29 or 30, wherein the aqueous liquid composition further comprises one or more components selected from surfactants, stabilizers, complexing agents, pH regulators, corrosion inhibitors and/or further additives, wherein non-ionic surfactants are preferred, for example a polymer-based non-ionic surfactants.
32. Method of sterilizing a surface according to one of claims 7 to 12, wherein the treatment achieves a reduction of Clostridioides difficele sporicidal activity of at least log 2 in a 4-field test after 5 minutes, preferably at least log 3 or at least log 4 in a 4-field test after 5 minutes, more preferably at least 4 log levels after 4 min or after 2 min, and wherein the 4-field test is carried out according to EN 16615.
33. Dry powder composition comprising a C12 to C14 fatty acid sulfonate.
34. Method of producing a dry powder composition according to claim 33, wherein the C12 to C14 fatty acid sulfonate is dried to a powder.
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| US8871807B2 (en) * | 2008-03-28 | 2014-10-28 | Ecolab Usa Inc. | Detergents capable of cleaning, bleaching, sanitizing and/or disinfecting textiles including sulfoperoxycarboxylic acids |
| EP3409265A1 (en) * | 2017-05-29 | 2018-12-05 | Basf Se | Method for the preparation of brightly coloured disalt |
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| US6479454B1 (en) | 2000-10-05 | 2002-11-12 | Ecolab Inc. | Antimicrobial compositions and methods containing hydrogen peroxide and octyl amine oxide |
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