Detergent composition
Patent Information
- Application Number
- BR112025021862
- Authority / Receiving Office
- BR · BR
- Patent Type
- Applications
- Publication Date
- 2026-09-15
Description
1 / 63 DETERGENT COMPOSITION Field of Invention
[0001] The present invention relates to a detergent composition comprising an improved surfactant. Background of the Invention
[0002] In the liquid detergent supply chain, from bottling at the factory to use in consumers' homes, the product can be exposed to temperatures above 40°C. This occurrence is becoming increasingly common due to global warming. Under these conditions, a considerable amount of fragrance can be lost due to evaporation and leakage from the packaging. A primary form of fragrance loss is through the loss of fragrance in the headspace above the liquid. This particularly occurs when there is a large headspace, for example, when the bottle is beginning to empty.
[0003] It would be desirable for the perfume to stabilize in the bottle, so that the perfume in the free space above the bottle is reduced.
[0004] Despite the prior state of the art, there is a need for improved anionic surfactants for detergent compositions. Summary of the Invention
[0005] Consequently, and in a first aspect, a detergent composition is provided comprising fragrance and an alcoholic ether sulfate, wherein the alcoholic ether sulfate comprises C12 and C14 alkyl chains and has a molar average of 2.0 to 4.0 ethoxylate units, wherein said alcoholic ether sulfate contains less than 10% by weight of alcoholic ether sulfate with zero ethoxylate groups and wherein the fragrance comprises a fragrance component selected from limonene, tonalide, octahydrotetramethylacetophenone (OTNE), cyclamen aldehyde, C8 to C12 linear and branched aldehyde, β-ionone, dihydromyrcenol, hexyl salicylate, and mixtures thereof. Petition 870250092227, dated 09 / 10 / 2025, page 6 / 141 2 / 63 Detailed Description of the Invention
[0006] Alcoholic ether sulfates with a molar average of 2 to 4 ethoxylate groups are produced by sulfation of the corresponding alcohol ethoxylates. The most widely used materials are based on linear or branched C12-C15 alcohols. Typically, ethoxylation reactions to form alcohol ethoxylates are base-catalyzed using NaOH, KOH, or NaOCH3. The reaction produces a narrow-band ethoxylation chain length distribution in the alcohol ethoxylate. Narrow-band ethoxylation promotes a narrower distribution of ethoxy chain lengths than NaOH, KOH, or NaOCH3. Most notably, narrow-band ethoxylation yields a significantly smaller fraction of material with exactly 0 or 1 ethoxylate group.
[0007] Surprisingly, it has been observed that surfactants having a narrow-range ethoxylate profile are able to improve the performance of fragrances incorporated into the formulation.
[0008] Alcoholic ether sulfate has a molar average of 2.0 to 4.0 ethoxylate units and contains less than 10% by weight of alcoholic ether sulfate with zero ethoxylate groups.
[0009] Preferably, the alcoholic ether sulfate contains less than 5% by weight of alcoholic ether sulfate with exactly zero ethoxylate groups.
[0010] Preferably, the alcoholic ether sulfate contains less than 12% by weight of alcoholic ether sulfate with exactly one ethoxylate group.
[0011] Preferably, the alcoholic ether sulfate has a molar average of 2.6 to 3.4 ethoxylate units, most preferably 2.8 to 3.2.
[0012] Preferably, the composition comprises at least 60% by weight of the composition water.
[0013] Preferably, alkyl ether sulfate is present in 5 to 30% by weight of the composition.
[0014] Preferably, the polyester-based dirt-releasing polymer is present at 0.1 to 2% by weight of the composition.
[0015] Preferably, the composition is a liquid detergent composition. Petition 870250092227, dated 09 / 10 / 2025, page 7 / 141 3 / 63
[0016] Preferably, the composition is a unit-dose liquid composition for washing clothes.
[0017] Preferably, the composition comprises an alcoholic ether sulfate Ci2:14, wherein the ratio of Ci2:i4 is from 5:1 to 1:20. More preferably, the ratio between Ci2:i4 is from 4:1 to 1:10, with the most preference being the ratio between Ci2:i4 being from 3:1 to 5:4.
[0018] Preferably, alcoholic ether sulfate is present in 1 to 30% by weight of the composition.
[0019] Preferably, the composition comprises salt. Preferably, the salt is selected from sodium chloride, potassium chloride, and mixtures thereof.
[0020] Preferably, the salt is present from 0.1 to 5% by weight of the composition. More preferably, the salt is present from 0.8 to 4% by weight of the composition.
[0021] Preferably, the composition comprises from 0.1 to 3% by weight of a betaine, preferably cocamidopropyl betaine. Alcoholic ether sulfate
[0022] Alcoholic ether sulfate has the formula I: R2-O-(CH2CH2O)pSO3H (I)
[0023] Where R2 is an alkyl group and p is the molar mean and is from 2.0 to 4.0. Preferably, greater than 80% by weight, more preferably greater than 95% by weight of R2 are selected from C12 and C14 chains, preferably the chains are linear.
[0024] The structure of alcoholic ether sulfates with exactly zero ethoxylate groups has the structure of formula II: R2-O-SO3H (II)
[0025] Alcohol ether sulfates are formed by the sulfation of the corresponding alcohol ethoxylate. The alcohol ethoxylate is formed by the ethoxylation of the alcohol using a narrow-band ethoxylation catalyst.
[0026] Preferably, the alcoholic ether sulfate contains less than 10% by weight, more preferably less than 4% by weight of non-C12 chains. Petition 870250092227, dated 09 / 10 / 2025, p. 8 / 141 4 / 63 and C14, with a maximum preference for less than 10% by weight of C16, C18 and C20 chains.
[0027] Narrow-band ethoxylation catalysts are described in documents EP3289790 (Procter & Gamble), EP1747183 (Hacros); Santacesatia et al Ind. Eng. Chem. Res. 1992, 31, 2419-2421; US4239917 (Conoco); Li et al ACS Omega. 2021 Nov 9; 6(44): 29774-29780; Hreczuch et al J. Am. Oil Chem. Soc. 1996, 73, 73-78 and WO2022 / 129374 (Unilever). Calcium- or Ba-based catalysts are preferred, with the highest preference given to those combined with sulfuric acid.
[0028] The standard 3EO as described in the literature is not a perfectly pure manifestation of 3EO; in fact, 100% pure 3EO is not commercially available. Instead, what is described as 3EO is a mixture of varying ethoxylation rates with an average around 3. This 3EO is ethoxylated using KOH. To achieve a narrow-band ethoxylation profile, a specific catalyst must be used.
[0029] Below is a comparison of the standard and narrowband 3EO.
[0030] Table 1: Comparison of standard and narrowband 3EO. Groups EO 3EO KOH NR 0 20 7 1 16 14 2 17 23 3 15 23 4 11 15 5 8 8 6 5 5 7 4 3 8 2 1 9 1 0 Petition 870250092227, dated 09 / 10 / 2025, page 9 / 141 5 / 63 10 0.5 0 11 0 0 2, 3 and 4 43 61 0 and 1 36 21
[0031] Preferably, the sum (n-1, n, n+1) is greater than 50%, and more preferably greater than 55%, where n is 2 to 4 (n=molar average of ethoxy).
[0032] Preferably, the total level of 2EO, 3EO and 4EO in the total alkyl ether sulfate, as measured by GC with flame ionization detection (FID), is greater than 50% and more preferably greater than 55% of the total alcoholic ether sulfate.
[0033] Preferably, the total proportion of 0EO and 1EO in the total alkyl ether sulfate, as measured by GC with flame ionization detection (FID), is less than 25% of the total alcoholic ether sulfate.
[0034] It is understood that the measurement is carried out on the alcohol ethoxylate prior to sulfonation, but that sulfonation does not substantially affect the ethoxylation ratios.
[0035] Alcoholic ether sulfates are also known as alkyl ether sulfates. FRAGRANCE
[0036] The composition comprises a fragrance and, preferably, the fragrance is present from 0.01 to 5% by weight, more preferably from 0.1 to 1% by weight of the composition.
[0037] Preferably, the fragrance comprises a fragrance component selected from limonene, tonalide, octahydrotetramethylacetophenone (OTNE), cyclamen aldehyde, C8 to C12 linear and branched aldehyde, β-ionone, dihydromyrcenol, hexyl salicylate, and mixtures thereof. Petition 870250092227, dated 09 / 10 / 2025, page 10 / 141 6 / 63
[0038] Preferably, the fragrance comprises from 0.5 to 30% by weight, more preferably from 2 to 15% by weight and, especially preferably, from 6 to 10% by weight of the fragrance component hexyl salicylate.
[0039] Preferably, the fragrance comprises from 0.5 to 30% by weight, more preferably from 2 to 15% by weight and, especially preferably, from 6 to 10% by weight of the fragrance component limonene.
[0040] Preferably, the fragrance comprises 0.5 to 30% by weight, more preferably 2 to 15%, and especially preferably 6 to 10% by weight of the fragrance component β-ionone.
[0041] Preferably, the fragrance comprises from 0.5 to 30% by weight, more preferably from 2 to 15% by weight and, especially preferably, from 6 to 10% by weight of the fragrance component octahydrotetramethylacetophenone (OTNE).
[0042] Preferably, the fragrance comprises from 0.5 to 30% by weight, more preferably from 2 to 15%, and especially preferably from 6 to 10% by weight of the fragrance component dihydromyrcenol.
[0043] Preferably, the fragrance comprises from 0.5 to 30% by weight, more preferably from 2 to 15%, and especially preferably from 6 to 10% by weight of the fragrance component cyclamen aldehyde.
[0044] Preferably, the fragrance comprises from 0.5 to 30% by weight, more preferably from 2 to 15%, and especially preferably from 6 to 10% by weight of the fragrance component tert-aldehyde MNA.
[0045] Preferably, the fragrance comprises from 0.5 to 30% by weight, more preferably from 2 to 15%, and especially preferably from 6 to 10% by weight of the linear and branched C8 to C12 aldehyde fragrance component.
[0046] Preferably, the fragrance comprises from 0.5 to 30% by weight, more preferably from 2 to 15% by weight and, especially preferably, from 6 to 10% by weight of the fragrance component Tonalide.
[0047] Preferably, the composition comprises at least two of the fragrance components selected from limonene, Tonalide, Petition 870250092227, dated 09 / 10 / 2025, page 11 / 141 7 / 63 octahydrotetramethylacetophenone (OTNE), cyclamen aldehyde, linear and branched C8 to C12 aldehyde, β-ionone, dihydromyrcenol and hexyl salicylate.
[0048] Preferably, the composition comprises at least three of the fragrance components selected from limonene, tonalide, octahydrotetramethylacetophenone (OTNE), cyclamen aldehyde, linear and branched C8 to C12 aldehyde, β-ionone, dihydromyrcenol and hexyl salicylate.
[0049] Preferably, the composition comprises at least four of the fragrance components selected from limonene, tonalide, octahydrotetramethylacetophenone (OTNE), cyclamen aldehyde, linear and branched C8 to C12 aldehyde, β-ionone, dihydromyrcenol and hexyl salicylate.
[0050] Preferably, the composition comprises at least five of the fragrance components selected from limonene, tonalide, octahydrotetramethylacetophenone (OTNE), cyclamen aldehyde, C8 to C12 linear and branched aldehyde, β-ionone, dihydromyrcenol and hexyl salicylate.
[0051] Preferably, the composition comprises at least six of the fragrance components selected from limonene, tonalide, octahydrotetramethylacetophenone (OTNE), cyclamen aldehyde, C8 to C12 linear and branched aldehyde, β-ionone, dihydromyrcenol and hexyl salicylate.
[0052] Preferably, the composition comprises at least seven of the fragrance components selected from limonene, tonalide, octahydrotetramethylacetophenone (OTNE), cyclamen aldehyde, C8 to C12 linear and branched aldehyde, β-ionone, dihydromyrcenol and hexyl salicylate.
[0053] Preferably, the composition comprises at least eight of the fragrance components selected from limonene, tonalide, octahydrotetramethylacetophenone (OTNE), cyclamen aldehyde, C8 to C12 linear and branched aldehyde, β-ionone, dihydromyrcenol and hexyl salicylate.
[0054] Preferably, the composition comprises all nine fragrance components selected from limonene, tonalide, octahydrotetramethylacetophenone (OTNE), cyclamen aldehyde, linear and branched C8 to C12 aldehyde, β-ionone, dihydromyrcenol and hexyl salicylate. Petition 870250092227, dated 09 / 10 / 2025, page 12 / 141 8 / 63
[0055] Preferably, the fragrance comprises one of the following mixtures of fragrance components:
[0056] - limonene, octahydrotetramethylacetophenone (OTNE), cyclamen aldehyde, linear and branched C8 to C12 aldehyde, β-ionone, dihydromyrcenol and hexyl salicylate.
[0057] - limonene, tonalide, octahydrotetramethylacetophenone (OTNE), linear and branched C8 to C12 aldehyde, β-ionone, dihydromyrcenol and hexyl salicylate.
[0058] - limonene, tonalide, octahydrotetramethylacetophenone (OTNE), cyclamen aldehyde, β-ionone, dihydromyrcenol and hexyl salicylate.
[0059] - limonene, Tonalide, octahydrotetramethylacetophenone (OTNE), cyclamen aldehyde, linear and branched C8 to C12 aldehyde, dihydromyrcenol and hexyl salicylate.
[0060] - limonene, Tonalide, octahydrotetramethylacetophenone (OTNE), cyclamen aldehyde, linear and branched C8 to C12 aldehyde, β-ionone and hexyl salicylate.
[0061] - limonene, tonalide, octahydrotetramethylacetophenone (OTNE), cyclamen aldehyde, linear and branched C8 to C12 aldehyde, β-ionone and dihydromyrcenol.
[0062] - limonene, tonalide, cyclamen aldehyde, linear and branched C8 to C12 aldehyde, β-ionone, dihydromyrcenol and hexyl salicylate.
[0063] - cyclamen aldehyde, linear and branched C8 to C12 aldehyde, β-ionone, dihydromyrcenol and hexyl salicylate.
[0064] - limonene, tonalide, octahydrotetramethylacetophenone (OTNE), β-ionone, dihydromyrcenol and hexyl salicylate.
[0065] - limonene, octahydrotetramethylacetophenone (OTNE), cyclamen aldehyde, β-ionone, dihydromyrcenol and hexyl salicylate.
[0066] - limonene, Tonalide, octahydrotetramethylacetophenone (OTNE), cyclamen aldehyde, linear and branched C8 to C12 aldehyde and hexyl salicylate.
[0067] - limonene, tonalide, octahydrotetramethylacetophenone (OTNE), cyclamen aldehyde, linear and branched C8 to C12 aldehyde, β-ionone and salicylate Petition 870250092227, dated 09 / 10 / 2025, p. 13 / 141 9 / 63 hexilla.
[0068] - limonene, tonalide, octahydrotetramethylacetophenone (OTNE), cyclamen aldehyde, linear and branched C8 to C12 aldehyde, β-ionone and dihydromyrcenol.
[0069] - limonene, tonalide, cyclamen aldehyde, linear and branched C8 to C12 aldehyde, β-ionone, dihydromyrcenol and hexyl salicylate.
[0070] More preferably, the composition comprises OTNE, dihydromyrcenol and C8 to C12 linear and branched aldehyde and, optionally, any of the remaining fragrance components.
[0071] Preferably, the composition comprises OTNE, dihydromyrcenol, C8 to C12 linear and branched aldehyde and Limonent and, optionally, any of the remaining fragrance components.
[0072] Preferably, the fragrance component listed above is present in the final detergent composition from 0.0001 to 1% by weight of the composition. SURFACTANT
[0073] The liquid detergent of the invention preferably comprises from 2 to 60% by weight of total surfactant, with a maximum preference of 4 to 30% by weight. Anionic and non-ionic surfactants are preferred.
[0074] Anionic surfactants are discussed in Anionic Surfactants: Organic Chemistry edited by Helmut W. Stache (Marcel Dekker 1995), Surfactant Science Series published by CRC Press. Preferred anionic surfactants are sulfonate and sulfate surfactants, preferably alkylbenzene sulfonates, alkyl sulfates, and alkyl ether sulfates.
[0075] The anionic surfactant is preferably added to the detergent composition in the form of a salt. Preferred cations are alkali metal ions, such as sodium and potassium. However, the salt form of the anionic surfactant can be formed locally by neutralization of the acidic form of the surfactant with an alkali, such as sodium hydroxide or an amine, for example mono-, di- or triethanolamine. The weight ratios are calculated for the protonated form of the surfactant. The ethoxy units can be partially replaced by Petition 870250092227, dated 09 / 10 / 2025, page 14 / 141 10 / 63 propoxy units in anionic and nonionic surfactants.
[0076] Other examples of suitable anionic surfactants are rhamnolipids, alpha-olefin sulfonates, olefin sulfonates, alkene sulfonates, 2,3-di-yl-bis(sulfate) alkanes, hydroxyalkanesulfonates and disulfonates, fatty alcohol sulfates (FAS), paraffin sulfonates, ester sulfonates, glycerol esters of sulfonated fatty acids, methyl ester sulfonate, alkyl or alkenylsuccinic acid, dodecenyl / tetradecenylsuccinic acid (DTSA), fatty acid amino acid derivatives, DATEMs, CITREMs and sulfosuccinic acid diesters and monoesters.
[0077] Examples of preferred nonionic surfactants are alcohol ethoxylates and methyl ester ethoxylates. Preferably, the level of nonionic surfactant in the formulation is less than 2% by weight. Preferred alcohol ethoxylates are C12 / 14 alcohol with a molar average of 7 to 9 ethoxylates and C16 / C18:i alcohol ethoxylate with a molar average of 8 to 12 ethoxylates.
[0078] Linear alkylbenzene sulfonate is a preferred anionic surfactant in addition to alcoholic ether sulfate. Linear alkylbenzene sulfonate
[0079] LAS (linear alkylbenzene sulfonate) is a preferred anionic surfactant.
[0080] The main intermediate compound in LAS production is the relevant alkene. These alkenes (olefins) can be produced by any of the methods described above and can be formed from primary sugars, biomass, residual plastic, municipal solid waste, carbon capture, methane capture, marine carbon, to name a few examples.
[0081] Whereas in the processes described above the olefin is processed to form linear alcohols by hydroformylation and oxidation, in this process the olefin is reacted with benzene and then sulfonate to form LAS.
[0082] Linear alkylbenzene sulfonates with an alkyl chain length of 10 to 18 carbon atoms. Commercial LAS is a mixture of closely related isomers and alkyl chain homologs, each Petition 870250092227, dated 09 / 10 / 2025, page 15 / 141 11 / 63 containing a sulfonated aromatic ring in the “para” position and attached to a linear alkyl chain in any position except the terminal carbons. The linear alkyl chain preferably has a chain length of 11 to 15 carbon atoms, with the predominant materials having a chain length of about C12. Each alkyl chain homologue consists of a mixture of all possible sulfophenyl isomers except for the 1-phenyl isomer. LAS is normally formulated in acidic compositions, i.e., in the HLAS form, and then at least partially neutralized locally. Preferably, the linear alkylbenzene sulfonate surfactant is present from 1 to 20% by weight, more preferably from 2 to 15% by weight of the composition, with the most preference being 8 to 12% by weight. BRANCHED SURFACTANT
[0083] The composition of the present invention preferably comprises a branched C8-11 alcoholic ether sulfate surfactant of formula (III): RO-(EO)nSO3X (III)
[0084] Where R is preferably C8 to C11 branched alkyl chains (R), preferably C9 or C10; n is from 1 to 6, preferably from 2.5 to 5, most preferably from 3.5 to 4.5; and X is a cation, preferably sodium or an amine. The integer n is an average molar value. EO represents an ethoxy group.
[0085] Preferably, the branched alcoholic ether sulfate surfactant has the structure of formula IV: H3C(H2C)p. YT)(EO)nSO3X (CH2)mCH3(IV), where p and m are greater than 1, more preferably m is 4 and p is 2 or m = p+2
[0086] Preferably, the branched alcoholic ether sulfate is made from a Guerbet alcohol. Preferably, the alcohol used to produce the branched alcoholic ether sulfate surfactant is greater than 80 molar percent of a simple alkyl chain length and configuration. The ether sulfate Petition 870250092227, dated 09 / 10 / 2025, p. 16 / 141 12 / 63 C10 branched alcoholic extract in 2-propylheptanolic alcohol with 4 molar mean ethoxylation is of maximum preference.
[0087] Branched alcohols are discussed by Farbe et al. in the chapter Alcohols, Aliphatic of Ullmann's Encyclopedia of Industrial Chemistry.
[0088] Branched alcohols are available near Sasol, Exxon and BASF.
[0089] Preferably, the branched surfactant comprises 1 to 20% by weight of the total surfactant in the composition.
[0090] Given the typical surfactant loading of the composition as a whole, it is preferred that the branched surfactant level be from 0.05 to 3% by weight of the composition.
[0091] Preferably, the weight ratio between anionic surfactants and / or total nonionic surfactants and C8 to C11 branched alcoholic ether sulfate is 100:1 to 30:1, more preferably 80:1 to 40:1. Methyl Ester Ethoxylate (MEE)
[0092] A preferred nonionic surfactant includes methyl ester ethoxylates. The methyl ester ethoxylate surfactant has the formula V: R3(-C=O)-O-(CH2CH2-O)n-CH3 (V)
[0093] Where R3COO is a fatty acid moiety, for example, oleic, stearic, palmitic. The nomenclature 'fatty acid' serves to describe the fatty acid by 2 numbers A:B, where A is the number of carbons in the fatty acid and B is the number of double bonds it contains. For example, oleic is 18:1, stearic is 18:0 and palmitic is 16:0. The position of the double bond in the chain can be shown in parentheses, 18:1(9) for oleic, 18:2 (9,12) for linoleic, where 9 is the number of carbons from the COOH end.
[0094] The integer n is the average molar number of ethoxylates.
[0095] Methyl ester ethoxylates (MEE) are described in chapter 8 of Biobased Surfactants (second edition) Synthesis, Properties, and Applications, pages 287-301 (AOCS Press 2019) by G.A. Smith; J.Am.Oil. Chem.Soc. vol 74 (1997) pages 847-859 by Cox ME and Weerasooriva U; Tenside Surf.Det. Petition 870250092227, dated 09 / 10 / 2025, p. 17 / 141 13 / 63 vol 28 (2001) pages 72-80 by Hreczuch et al; by C. Kolano. Household and Personal Care Today (2012) pages 52-55; J.Am.Oil. Chem.Soc. vol 72 (1995) pages 781-784 by A. Hama et al. MSEs can be produced in the reaction of methyl ester with ethylene oxide, using calcium or magnesium-based catalysts. The catalyst can be removed or left in the MSEs.
[0096] An alternative route of preparation is the transesterification reaction of a methyl ester or the esterification reaction of a carboxylic acid with a polyethylene glycol that has a methyl termination at one end of the chain.
[0097] Methyl esters can be produced by transesterification reaction of methanol with a triglyceride, or esterification reaction of methanol with a fatty acid. Transesterification reactions of a triglyceride into fatty acid and glycerol methyl esters are discussed in Fattah et al (Front. Energy Res., June 2020, Volume 8, Article 101) and references cited herein. Common catalysts for these reactions include sodium hydroxide, potassium hydroxide, and sodium methoxide. Esterase and lipase enzymes can also be used. Triglycerides occur naturally in vegetable fats or oils; preferred sources include rapeseed oil, castor oil, corn oil, cottonseed oil, olive oil, palm oil, safflower oil, sesame oil, soybean oil, high steric / high oleic sunflower oil, high oleic sunflower oil, non-edible vegetable oils, tallow oil, and any mixture thereof and any derivative thereof.Tree oil is called tallow oil. Used cooking oils can also be used. Triglycerides can also be obtained from algae, fungi, yeast, or bacteria. Plant sources are preferred.
[0098] The distillation and fractionation process can be used in the production of methyl ester or carboxylic acid to produce the desired carbon chain distribution. Preferred triglyceride sources are those containing less than 35% by weight of polyunsaturated fatty acids in the oil before distillation, fractionation, or hydrogenation.
[0099] The fatty acid and methyl ester can be obtained from suppliers Petition 870250092227, dated 09 / 10 / 2025, page 18 / 141 14 / 63 of oleochemicals such as Wilmar, KLK Oleo, Unilever Oleochemical Indonesia. Biodiesel is methyl ester and these sources can be used.
[0100] When ESB is MEE, it preferably has a molar average of 8 to 30 ethoxylate (EO) groups, more preferably 10 to 20. Most preferably, the ethoxylate comprises 12 to 18 EO. Preferably, at least 10% by weight, more preferably at least 30% by weight of the C18:1 MEE in the composition has 9 to 11 EO, even more preferably at least 10% by weight is exactly 10 EO. For example, when the MEE has a molar average of 10 EO, then at least 10% by weight of the MEE should consist of ethoxylate with 9, 10 and 11 ethoxylate groups.
[0101] The methyl ester ethoxylate preferably has a molar average of 8 to 13 ethoxylate (EO) groups. The ethoxylate most preferably has a molar average of 9 to 11 EO, even more preferably 10 EO. When the MEE has a molar average of 10 EO, then at least 10% by weight of the MEE must consist of ethoxylate with 9, 10 and 11 ethoxylate groups.
[0102] In the context of the broader MEE contribution, it is preferred that at least 40% by weight of the total MEE in the composition be Ci8:i.
[0103] Furthermore, it is preferable that the MEE component also comprise some Ci6 MEE. Therefore, it is preferable that the total MEE component comprise from 5 to 50% by weight of total MEE, Ci6 MEE. Preferably, the C16 MEE is greater than 90% by weight, more preferably greater than 95% by weight, Ci6:o.
[0104] Additionally, it is preferred that the total MEE component comprise less than 15% by weight, more preferably less than 10% by weight, with the highest preference being less than 5% by weight of total C18 polyunsaturated MEE, for example, C18:2 and C18:3. Preferably, C18:3 is present at less than 1% by weight, more preferably less than 0.5% by weight, with the highest preference being essentially absent. The levels of polyunsaturation can be controlled by distillation, fractionation or partial hydrogenation of the raw materials (triglyceride or methyl ester) or of the MEE.
[0105] Additionally, it is preferred that the Ci8:o component be smaller than Petition 870250092227, dated 09 / 10 / 2025, p. 19 / 141 15 / 63 10% by weight of the total MEE present.
[0106] Additionally, it is preferred that components with carbon chains 15 or shorter comprise less than 4% by weight of the total MEE weight present.
[0107] A particularly preferred MEE has 2 to 26% by weight of Ci6:o chains of MEE, 1 to 10% by weight of Ci8:0 chains, 50 to 85% by weight of Cis:i. chains, and 1 to 12% by weight of Ci8:2 chains.
[0108] Preferred sources for alkyl groups for MEE include distilled palm oil methyl ester and high oleic distilled palm kernel oil methyl ester, low erucic partially hydrogenated rapeseed oil methyl ester, high oleic sunflower oil methyl ester, high oleic safflower oil methyl ester, and high oleic soybean oil methyl ester. High oleic oils are available alongside DuPont (Plenish high oleic soybean oil), Monsanto (Visitive Gold soybean oil), Dow (Omega-9 canola oil, Omega-9 sunflower oil), National Sunflower Association, and Oilseeds International.
[0109] Preferably, the double bonds in the MEE are greater than 80% by weight in the cis configuration.
[0110] Preferably, component 18:1 is oleic. Preferably, component 18:2 is linoleic.
[0111] The methyl group of the methyl ester can be replaced by an ethyl or propyl group. Methyl is the most preferred.
[0112] Preferably, the methyl ester ethoxylate comprises from 0.1 to 95% by weight of methyl ester ethoxylate of the composition. More preferably, the composition comprises from 2 to 40% of MEE and, most preferably, from 4 to 30% by weight of MEE.
[0113] Preferably, the composition comprises at least 50% by weight of water, but this depends on the total surfactant level and is adjusted accordingly. Petition 870250092227, dated 09 / 10 / 2025, page 20 / 141 16 / 63
[0114] The weights of anionic surfactant are calculated as the protonated form. BRANCHED SURFACTANT
[0115] The composition of the present invention comprises a branched C8-11 alcoholic ether sulfate surfactant of formula III: RO-(EO)nSO3X (III)
[0116] Where R is preferably C8 to C11 branched alkyl chains (R), preferably C9 or C10; n is from 1 to 6, preferably from 2.5 to 5, most preferably from 3.5 to 4.5; and X is a cation, preferably sodium or an amine. The integer n is an average molar value. EO represents an ethoxy group.
[0117] Preferably, the branched alcoholic ether sulfate surfactant has the structure of formula IV: H3C(H2C)P. ^O(EO)nSO3X (CH2)mCH3(IV),
[0118] where p and m are greater than 1, more preferably m is 4 and p is 2 or m = p+2.
[0119] Preferably, the branched alcoholic ether sulfate is made from a Guerbet alcohol. Preferably, the alcohol used to produce the branched alcoholic ether sulfate surfactant is greater than 80 molar of a simple alkyl chain length and configuration. The C10 branched alcoholic ether sulfate in 2-propylheptanolic alcohol with 4 molar average ethoxylation is most preferably.
[0120] Branched alcohols are discussed by Farbe et al. in the chapter Alcohols, Aliphatic of Ullmann's Encyclopedia of Industrial Chemistry.
[0121] Branched alcohols are available from Sasol, Exxon and BASF.
[0122] Preferably, the branched surfactant comprises 1 to 20% by weight of the total surfactant in the composition. Petition 870250092227, dated 09 / 10 / 2025, page 21 / 141 17 / 63
[0123] Given the typical surfactant loading of the composition as a whole, it is preferred that the branched surfactant level be from 0.05 to 3% by weight of the composition.
[0124] Preferably, the weight ratio between anionic surfactants and / or total nonionic surfactants and C8 to C11 branched alcoholic ether sulfate is 100:1 to 30:1, more preferably 80:1 to 40:1. Zwitterionic surfactants
[0125] The composition may comprise from 0 to 3% by weight of zwitterionic surfactant.
[0126] Examples of zwitterionic surfactants include: secondary and tertiary amine derivatives, secondary and tertiary heterocyclic amine derivatives, or quaternary ammonium, quaternary phosphonium or tertiary sulfonium compounds. Betaines, including C10-C14 alkyldimethyl betaine and cocodimethylamidopropyl betaine, C10 to C14 amine oxides and sulfo and hydroxy betaines, for example, N-alkyl-N,N-dimethylamino-1-propane sulfonate, wherein the alkyl group may be C10 to C14. Surfactant ratios
[0127] Preferably, the weight ratio between total ether sulfate surfactant and total anionic surfactant is 1 to 0.5, preferably 1 to 0.8. Source of alkyl chains
[0128] The alkyl chain of the surfactant is preferably obtained from a renewable source, preferably from a triglyceride. A renewable source is one in which the material is produced by a natural ecological cycle from a living source, preferably from a plant, algae, fungi, yeast or bacteria, more preferably plants, algae or yeast.
[0129] Preferred plant sources of oils are rapeseed, sunflower, corn, soybean, cottonseed, olive, and olive trees. Tree oil is called tallow oil. Palm kernel and coconut oils are the preferred sources. The required C12O14 ratio can be obtained by fractionation / distillation and mixing of components. Petition 870250092227, dated 09 / 10 / 2025, p. 22 / 141 18 / 63
[0130] Algal oils are discussed in Energies 2019, 12, 1920 Algal Biofuels: Current Status and Key Challenges by Saad MG et al. A process for the production of triglycerides from biomass using yeast is described in Energy Environ. Sci., 2019,12, 2717 A sustainable, high-performance process for the economic production of waste-free microbial oils that can replace plant-based equivalents by Masri MA et al.
[0131] Non-edible vegetable oils may be used and are preferably selected from the fruits and seeds of Jatropha curcas, Calophyllum inophyllum, Sterculia feotida, Madhuca indica (mahua), Pongamia glabra (koroch seed), flaxseed, Pongamia pinnata (karanja), Hevea brasiliensis (rubber tree seed), Azadirachta indica (neem), Camelina sativa, Lesquerella fendleri, Nicotiana tabacum (tobacco), Deccan hemp, Ricinus communis L. (castor), Simmondsia chinensis (jojoba), Eruca sativa L., Cerbera odollam (suicide tree), coriander (Coriandrum sativum L.), Croton megalocarpus, Pilu, Crambe, lilac, Scheleichera triguga (kusum), Stillingia, Shorea robusta (sal), Terminalia belerica roxb, Cuphea, Camellia, Champaca, Simarouba glauca, Garcinia indica, rice bran, Hingan (balanite), Desert date, Curd thistle, Asclepias syriaca (wild cotton), Guizotia abyssinica, Ethiopian Radish mustard, Syagrus, Tung, Idesia polycarpa var.vestita, Alagae, Argemone mexicana L. (Argemone mexicana), Putranjiva roxburghii (lucky bean tree), Sapindus mukorossi (lava nut), M. azedarach (chinaberry), Thevettia peruviana (yellow oleander), Copaiba, Aveloz, Loureiro, Cumaru, Andiroba, Pequi, B. napus, Zanthoxylum bungeanum.
[0132] C12-C14 linear alcohols that are suitable as an intermediate step in the manufacture of C12-C14 ether sulfate can be obtained from several different sustainable sources. These include: Primary sugars
[0133] Primary sugars are obtained from sugar cane or sugar beets, etc., and can be fermented to form bioethanol. The bioethanol is then dehydrated to form bioethylene, which then undergoes olefin metathesis. Petition 870250092227, dated 09 / 10 / 2025, page 23 / 141 19 / 63 to form alkenes. These alkenes are then processed into linear alcohols by either hydroformylation or oxidation.
[0134] An alternative process that also uses primary sugars to form linear alcohols can be used, in which the primary sugar undergoes microbial conversion by algae to form triglycerides. These triglycerides are then hydrolyzed into linear fatty acids and are then reduced to form linear alcohols. Biomass
[0135] Biomass, for example forest products, rice husks and straw, to name a few, can be processed into synthesis gas by gasification. Through the Fischer-Tropsch reaction, these are processed into alkanes which, in turn, are dehydrogenated to form olefins. These olefins can be processed in the same way as the alkenes described above [primary sugars]. An alternative process transforms the same biomass into polysaccharides by steam explosion which can be enzymatically degraded into secondary sugars. These secondary sugars are then fermented to form bioethanol which, in turn, is dehydrated to form bioethylene. This bioethylene is then processed into linear alcohols as described above [primary sugars]. Waste plastics
[0136] Residual plastic is pyrolyzed to form pyrolyzed oils. These are then fractionated to form linear alkanes which are dehydrogenated to form alkenes. These alkenes are processed as described above [primary sugars].
[0137] Alternatively, the pyrolyzed oils are broken down to form ethylene which is then processed to form the necessary alkenes by olefin metathesis. These are then processed into linear alcohols as described above [primary sugars]. Municipal solid waste
[0138] Municipal solid waste is transformed into synthesis gas by Petition 870250092227, dated 09 / 10 / 2025, page 24 / 141 20 / 63 Gasification. From the synthesis gas, it can be processed as described above [primary sugars] or it can be transformed into ethanol by enzymatic processes before being dehydrogenated into ethylene. The ethylene can then be transformed into linear alcohols by the Ziegler Process.
[0139] Municipal solid waste can also be transformed into pyrolysis oil by gasification and then fractionated to form alkanes. These alkanes are then dehydrogenated to form olefins and then linear alcohols. Marine carbon
[0140] There are several sources of carbon from marine flora, for example, seaweed and kelp. From this marine flora, triglycerides can be separated from the source, which is then hydrolyzed to form fatty acids that are reduced to linear alcohols in the usual way.
[0141] Alternatively, the raw material can be separated into polysaccharides that are enzymatically degraded to form secondary sugars. These can be fermented to form bioethanol and then processed as described above [primary sugars]. Waste oils
[0142] Waste oils, for example, used cooking oil, can be physically separated into triglycerides which are broken down to form linear fatty acids and then linear alcohols as described above. Alternatively, used cooking oil can be subjected to the Neste Process whereby the oil is catalytically broken down to form bioethylene. This is then processed as described above. Methane capture
[0143] Methane capture methods capture methane from landfills or from fossil fuel production. Methane can be formed into synthesis gas by gasification. Synthesis gas can be processed as described above, where the synthesis gas is transformed into methanol (Fischer-Tropsch reaction) and then into olefins before being transformed into alcohols. Petition 870250092227, dated 09 / 10 / 2025, page 25 / 141 21 / 63 linear by hydroformylation or oxidation.
[0144] Alternatively, synthesis gas can be transformed into alkanes and then into olefins by Fischer-Tropsch reaction and then by dehydrogenation. Carbon capture
[0145] Carbon dioxide can be captured by any of several processes, all of which are well known. Carbon dioxide can be transformed into carbon monoxide by a reverse water-gas displacement reaction, which in turn can be transformed into synthesis gas using hydrogen gas in an electrolytic reaction. The synthesis gas is then processed as described above and is transformed into methanol and / or alkanes before being reacted to form olefins.
[0146] Alternatively, the captured carbon dioxide is mixed with hydrogen gas before being enzymatically processed to form ethanol. This is a process that was developed by Lanzatech. From here the ethanol is transformed into ethylene and then processed into olefins and then linear alcohols as described above.
[0147] The above processes can also be used to obtain the C12 / 14 chains of C12 / 14 ether sulfates.
[0148] Preferably, the composition is visually transparent.
[0149] Preferably, the composition contains 10 to 80% water by weight.
[0150] Preferably, the liquid detergent comprises 1 to 5% by weight of ethanol. Liquid laundry detergents
[0151] The term “laundry detergent”, in the context of the present invention, denotes formulated compositions intended to be capable of wetting and cleaning in domestic washing, for example, clothes, cloths, and other household textile articles. The object of the invention is to provide a composition that, upon dilution, is capable of forming a liquid laundry detergent composition in the manner described herein. Petition 870250092227, dated 09 / 10 / 2025, page 26 / 141 22 / 63
[0152] In a preferred embodiment, the liquid composition is isotropic.
[0153] The term “cloth” is generally used to describe certain types of laundry items, including bed sheets, pillowcases, towels, tablecloths, placemats, and uniforms. Textile articles may include woven fabrics, non-woven fabrics, and knitted fabrics; and may include natural or synthetic fibers, for example, silk fibers, linen fibers, cotton fibers, polyester fibers, polyamide fibers, such as nylon, acrylic fibers, acetate fibers, and blends thereof, including cotton and polyester blends.
[0154] Examples of liquid laundry detergents include heavy-duty liquid laundry detergents for use in the wash cycle of automatic washing machines, as well as liquid detergents for fine washing and color care, for example, those suitable for washing delicate clothes (e.g., those made of silk or wool), both manually and in the wash cycle of automatic washing machines.
[0155] The term “liquid”, in the context of the present invention, denotes that a continuous phase or predominant part of the composition is liquid and that the composition is fluid at 15 °C and above. Consequently, the term “liquid” may encompass emulsions, suspensions, and compositions having a fluid but more rigid consistency, known as gels or pastes. The viscosity of the composition is preferably from 200 to about 10,000 mPa.s at 25 °C at a shear rate of 21 s⁻¹. This shear rate is the shear rate that is generally exerted on the liquid when poured from a bottle. Pourable liquid detergent compositions preferably have a viscosity of 200 to 1,500 mPa.s, more preferably from 200 to 700 mPa.s.
[0156] A composition according to the invention may suitably have a continuous aqueous phase. The term “continuous aqueous phase” means a continuous phase that has water as its base. Preferably, the composition Petition 870250092227, dated 09 / 10 / 2025, page 27 / 141 23 / 63 comprises at least 50% by weight of water and more preferably at least 70% by weight of water.
[0157] Alkyl ether sulfate can be provided as a single raw material component or by means of a mixture of components.
[0158] When the composition comprises a mixture of the C16 / 18 material supplied for the alcoholic ether sulfate, as well as the more traditional C12 alkyl chain length materials, it is preferred that the C16 / 18 alcoholic ether sulfate should comprise at least 10% by weight of the total alcoholic ether sulfate, more preferably at least 50%, even more preferably at least 70%, especially preferably at least 90% and, most preferably, at least 95% of the alcoholic ether sulfate in the composition.
[0159] Alcohol ethoxylate can be provided as a single raw material component or by means of a mixture of components.
[0160] Preferably, the selection and quantity of surfactant are such that the composition and the dilute mixture are isotropic in nature. Alkoxylated oligoamine cleansing enhancers
[0161] Preferably, the composition comprises an alkoxylated oligoamine cleansing enhancer.
[0162] Alkoxylated oligoamine cleaning enhancers are polymers containing at least 2, preferably at least 4 nitrogen atoms and, most preferably, at least 4 polyalkoxy groups, wherein the polyalkoxy groups contain from 10 to 30 individual alkoxy units. Preferably, at least one of the polyalkoxy groups is directly linked to a nitrogen atom. Preferably, the alkoxylate groups are selected from ethoxy and propoxy groups, most preferably ethoxy (-[CH2CH2O]nH).
[0163] Preferably, the alkoxylated oligoamine contains from 2 to 40, more preferably from 2 to 10, most preferably from 3 to 8 nitrogen atoms.
[0164] These polymers are described in documents WO2023 / 287834 Petition 870250092227, dated 09 / 10 / 2025, page 28 / 141 24 / 63 (DOW), WO2023 / 287835 (DOW), WO2023 / 287836 (DOW), WO2021 / 165493 (BASF), WO2021 / 165468 (BASF), WO2022 / 136389 (BASF), WO2022 / 136409 (BASF), WO2004 / 24858 (Procter and Gamble) and WO2021239547 (Unilever).
[0165] Alkoxylated oligoamines preferably contain a permanent positive charge, wherein the positive charge is provided by quaternization of the nitrogen atoms of the amines. Preferably, the charge is present when the alkoxylated oligoamines contain from 2 to 10, preferably from 3 to 6 nitrogen atoms. When possessing a permanent positive charge, the alkoxylated oligoamines will also possess anionic groups by sulfation or sulfonation of the alkoxylated group.
[0166] Preferably, an amount greater than or equal to 50 molar percent of nitrogen amines is quaternized, preferably with a methyl group. Preferably, the polymer contains 3 to 10, more preferably 3 to 6, with the highest preference for 3 to 5 quaternized nitrogen amines. Preferably, the alkoxylate groups are selected from ethoxy and propoxy groups, with the highest preference for ethoxy.
[0167] Preferably, the alkoxylated oligoamine contains ester groups (COO) within the structure, preferably these groups are positioned so that when all ester groups are hydrolyzed, at least one, preferably all hydrolyzed fragments have a molecular weight less than 4000, preferably less than 2000, most preferably less than 1000.
[0168] Preferably, the alkoxylated oligoamine is selected from among alkoxylated polyethyleneimines, zwitterionic alkoxylated oligoamines and tetraester alkoxylated oligoamines.
[0169] Alkoxylated polyethyleneimines are made from polyethyleneimines, which are materials composed of ethyleneimine units (-CH2CH2NH-) and, when branched, the hydrogen on the nitrogen is replaced by another chain of ethyleneimine units. The preferred alkoxylated polyethyleneimines for use in the invention have a polyethyleneimine main structure with a weight Petition 870250092227, dated 09 / 10 / 2025, page 29 / 141 25 / 63 average molecular weight (Mw) of about 300 to about 10000. The main structure of polyethyleneimine can be linear or branched. It can be branched to the point of being a dendrimer. When a nitrogen atom is alkoxylated, a preferred average degree of alkoxylation is 10 to 30, preferably 15 to 25 alkoxy groups per modification. A preferred material is ethoxylated polyethyleneimine, with an average degree of ethoxylation ranging from 10 to 30, preferably 15 to 25 ethoxy groups per ethoxylated nitrogen atom in the main structure of polyethyleneimine.
[0170] Zwitterionic alkoxylated oligoamines are of formula VI: xx L(VI)
[0171] Wherein Ri is a C3 to C8 alkyl group, X is a (C2H4O)nY group, wherein n is from 15 to 30, preferably from 18 to 25, wherein m is from 1 to 10, preferably from 2, 3, 4 or 5, and wherein Y is selected from OH and SO3· and the number of SO3- groups is greater than the number of OH groups. Preferably, there are 0 or 1 OH groups. X and R1 may contain ester groups within them. X may contain a carbonyl group, preferably an ester group. There is preferably 1 C2H4O unit separating the ester group from N, so that the structural unit N-C2H4O-ester-(C2H4O)n-1Y is preferred.
[0172] These polymers are described in documents WO2004 / 24858 (Procter and Gamble) and WO2021239547 (Unilever). A preferred exemplary polymer is sulfated ethoxylated hexamethylenediamine, Example 4 of document WO2004 / 24858 and Examples P1, P2, P3, P4, P5 and P6 of document WO2021239547. Ester groups can be included using lactones or sodium chloroacetate (modified Williamson synthesis), addition to an OH or NH group, then subsequent ethoxylation.
[0173] An illustrative reaction scheme for the inclusion of an ester group is shown by chemical reaction 1 Petition 870250092227, dated 09 / 10 / 2025, p. 30 / 141 26 / 63 (Reaction 1)
[0174] The addition of lactones is discussed in document WO2021 / 165468. After the ester group is included, the alkoxylated ester-containing polyamine can be methylated and sulfated, for example, according to Example P6 of document WO2021239547. Preferably, the product is neutralized to pH=7 at the end of the synthesis. If ester hydrolysis has occurred to any degree, the hydrolyzed products can be removed or re-esterified.
[0175] Tetraester alkoxylated oligoamines are of formula VII:
[0176] Where Ri is a polyalkoxy group, R is a polyalkoxy group, x is 0, 1 or 2 and b is 2, 3 or 4. These are described in documents WO2023 / 287834 (DOW), WO2023 / 287835 (DOW) and WO2023 / 287836 (DOW).
[0177] Preferably, the alkoxylated oligoamine cleansing enhancers are present from 0.01 to 8% by weight of the composition, more preferably from 0.5 to 3% by weight. AMINOCARBOXYLATE
[0178] Preferably, the composition comprises an aminocarboxylate sequestrant. Preferably, the aminocarboxylate is selected from GLDA and MGDA.
[0179] Preferably, the aminocarboxylate is present in the composition from 0.1 to 15% by weight, more preferably from 0.1 to 10% by weight, even more preferably from 0.3 to 5% by weight, even more preferably from 0.8 to 3% by weight, and, most preferably, from 1 to 2.5% by weight (by weight of the composition). Petition 870250092227, dated 09 / 10 / 2025, page 31 / 141 27 / 63 Glutamic acid-diacetic acid (GLDA)
[0180] GLDA may be present as a salt or a mixture of GDLA and a GDLA salt. Preferred salt forms include mono-, di-, tri- or tetra-alkali metal and mono-, di-, tri- or tetra-ammonium salts of GLDA. Alkali metal salts of glutamic acid-diacetic acid GDLA are preferably selected from lithium salts, potassium salts and, most preferably, sodium salts of GLDA.
[0181] Glutamic acid-diacetic acid can be partially or preferably completely neutralized with the respective alkali. Preferably, an average of 3.5 to 4 COOH groups of GLDA is neutralized with an alkali metal, preferably sodium. Most preferably, the composition comprises a tetrasodium salt of GLDA.
[0182] GLDA is at least partially neutralized with an alkali metal, more preferably with sodium or potassium, with maximum preference for sodium.
[0183] The GLDA salt may be an alkali metal salt of L-GLDA, an alkali metal salt of D-GLDA, or mixtures of enantiomerically enriched isomers.
[0184] Preferably, the composition comprises a mixture of L and D enantiomers of glutamic acid-diacetic acid (GLDA) or its respective mono, di, tri or tetra alkali metal salt or mono, di, tri or tetra ammonium salt or mixtures thereof, wherein said mixtures predominantly contain the respective L isomer with an enantiomeric excess in the range of 10 to 95%.
[0185] Preferably, the GLDA salt is essentially L-glutamic acid diacetic acid that is at least partially neutralized with an alkali metal.
[0186] Sodium salts of GLDA are preferred.
[0187] A suitable commercial source of GLDA in tetrasodium salt form is DISSOLVINE® GL available from Nouryon.
[0188] Preferably, GLDA is present in the composition from 0.1 to 15% by weight, more preferably from 0.1 to 10% by weight, even more Petition 870250092227, dated 09 / 10 / 2025, page 32 / 141 28 / 63 preferably from 0.3 to 5% by weight, even more preferably from 0.8 to 3% by weight, and, most preferably, from 1 to 2.5% by weight (by weight of the composition). Methyl glycine diacetic acid (MGDA)
[0189] Preferred salt forms include mono-, di-, tri- or tetra-alkali metal salts and mono-, di-, tri- or tetra-ammonium MGDA salts. Alkali metal salts are preferably selected from lithium salts, potassium salts and most preferably sodium MGDA salts.
[0190] The sodium salt of diacetic acid of methylglycine is preferred. In particular, the trisodium salt of MGDA is preferred.
[0191] MGDA can be partially or preferably completely neutralized with the respective alkali metal. Preferably, an average of 2.7 to 3 COOH groups per MGDA molecule is neutralized with an alkali metal, preferably sodium.
[0192] MGDA can be selected from racemic mixtures of alkali metal salts of MGDA and pure enantiomers, such as alkali metal salts of L-MGDA, alkali metal salts of D-MGDA and mixtures of enantiomerically enriched isomers.
[0193] Suitable commercial sources of MGDA in trisodium salt form are TRILON® M available from BASF and Dissolvine® M-40 from Nouryon.
[0194] Preferably, MGDA is present in the composition from 0.1 to 15% by weight, more preferably from 0.1 to 10% by weight, even more preferably from 0.3 to 5% by weight, even more preferably from 0.8 to 3% by weight, and, most preferably, from 1 to 2.5% by weight (by weight of the composition).
[0195] Smaller amounts of the aminocarboxylate may contain a non-alkali metal cation. Thus, it is possible that smaller amounts, such as 0.01 to 5% molar, may contain alkaline earth metal cations, for example, Mg2+ or Ca2+, or an Fe(II) or Fe(III) cation. GLDA may contain minor amounts of impurities resulting from its synthesis, for example, Petition 870250092227, dated 09 / 10 / 2025, p. 33 / 141 29 / 63 lactic acid, alanine, propionic acid or similar. The term “minor amounts” in this context refers to a total of 0.1 to 1% by weight, with reference to the aminocarboxylate sequestrant. ORGANIC ACID
[0196] The composition preferably comprises an organic acid. Preferably, the organic acid has the general structure of formula VIII: R-CH(OH)-COOH (VIII), where R is a linear C1-C5 alkyl group, more preferably C2-C4, with maximum preference for C4.
[0197] Preferably, at least two, more preferably all, carbon atoms in the linear C1-4 are substituted with an OH group. Preferably, R comprises a terminal COOH group. Preferred examples are lactic acid, tartaric acid, gluconic acid, mucic acid, glucoheptonic acid. Most preferably, the organic acid is gluconic acid.
[0198] The organic acid may be in its D or L form.
[0199] Gluconic acid can be selected from racemic mixtures of gluconic acid salts (gluconates) and from pure enantiomers, such as alkali metal salts of L-gluconic acid, alkali metal salts of D-gluconic acid, and from mixtures of enantiomerically enriched isomers. Disomeric forms are preferred.
[0200] Preferably, the organic acid is present in the range of 0.1 to 15% by weight, more preferably 0.1 to 10% by weight, even more preferably 0.2 to 4% by weight, even more preferably 0.5 to 3% by weight, and, most preferably, 0.8 to 2% by weight (by weight of the composition). Measured with respect to its protonated form.
[0201] In a most preferred embodiment, the composition comprises GLDA and / or MGDA and gluconic acid, more preferably GLDA and gluconic acid. EXTERNAL STRUCTURES
[0202] The compositions of the invention may have their rheology additionally Petition 870250092227, dated 09 / 10 / 2025, page 34 / 141 30 / 63 modified by the use of one or more external structuring agents that form a structuring network within the composition. Examples of such materials include crystallizable glycerides, for example, hydrogenated castor oil, microfibrous cellulose, and citrus pulp fiber. The presence of an external structuring agent can promote pseudoplastic rheology and can also allow materials, such as encapsulated products and visual indicators, to be stably suspended in the liquid.
[0203] The composition preferably comprises a crystallizable glyceride.
[0204] Crystallizable glyceride is useful in forming an external structuring system as described in document WO2011 / 031940, the content of which, particularly regarding the manufacture of the ESS, is incorporated by reference. When an ESS is present, it is preferred that the ESS of the present invention preferably comprises: (a) crystallizable glyceride(s); (b) alkanolamine; (c) anionic surfactant; (d) additional components; and (e) optional components. Each of these components is discussed in detail below.
[0205] The crystallizable glyceride(s) described herein preferably include “hydrogenated castor oil” or “HCO”. HCO, as used herein, may more generally be any hydrogenated castor oil, provided it is capable of crystallizing in the ESS premix. Castor oils may include glycerides, especially triglycerides, comprising C10 to C22 alkyl or alkenyl fractions incorporating a hydroxyl group. Hydrogenation of castor oil to manufacture HCO converts the double bonds, which may be present in the initial oils as ricinoleyl fractions, to convert ricinoleyl fractions into saturated hydroxyalkyl fractions, for example, hydroxystearyl. The HCO cited herein, in some embodiments, may be selected from: trihydroxystearin; dihydroxystearin; and mixtures thereof. HCO3 can be processed into any suitable initial form, including, but not limited to, selected solids, melts, and mixtures thereof. Petition 870250092227, dated 09 / 10 / 2025, page 35 / 141 31 / 63 is typically present in the ESS of the present invention at a level of approximately 2 percent to approximately 10 percent, approximately 3 percent to approximately 8 percent, or approximately 4 percent to approximately 6 percent by weight of the structuring system. In some embodiments, the corresponding percentage of hydrogenated castor oil delivered in a finished laundry detergent product is below approximately 1.0 percent, typically from 0.1 percent to 0.8 percent.
[0206] Useful HCO may have the following characteristics: a melting point of approximately 40 degrees Celsius to approximately 100 degrees Celsius, or of approximately 65 degrees Celsius to approximately 95 degrees Celsius; and / or the iodine value ranging from 0 to approximately 5, from 0 to approximately 4, or from 0 to approximately 2.6. The melting point of HCO may be measured using ASTM D3418 or ISO 11357; both tests utilize DSC: differential scanning calorimetry. HCO for use in the present invention includes those commercially available. Non-limiting examples of commercially available HCO for use in the present invention include: THIXCIN® from Rheox, Inc. Other examples of useful HCO may be found in US patent 5,340,390. The source of castor oil for hydrogenation to form HCO may be of any suitable origin, such as from Brazil or India.In a suitable embodiment, castor oil is hydrogenated using a precious metal, for example, palladium catalyst, and the hydrogenation temperature and pressure are controlled to optimize the hydrogenation of the double bonds of natural castor oil while avoiding unacceptable levels of dehydroxylation.
[0207] The invention should not be directed solely to the use of hydrogenated castor oil. Any or any other suitable crystallizable glyceride(s) may be used. In one example, the structuring agent is substantially pure 12-hydroxystearic acid triglyceride. This molecule represents the pure form of a fully hydrogenated 12-hydroxystearic acid triglyceride. Petition 870250092227, dated 09 / 10 / 2025, page 36 / 141 32 / 63 hydroxy-9-cis-octadecenoic acid. In nature, the composition of castor oil is fairly constant, but it can vary somewhat. Similarly, hydrogenation procedures can vary. Any other suitable equivalent materials, such as triglyceride mixtures in which at least 80 percent by weight is castor oil, may be used.Exemplary equivalent materials comprise mainly, or consist essentially of, triglycerides; or comprise mainly, or consist essentially of, mixtures of diglycerides and triglycerides; or comprise mainly, or consist essentially of, mixtures of triglycerides with diglycerides and limited amounts, for example, less than approximately 20 percent by weight, of glyceride mixtures of monoglycerides; or comprise mainly, or consist essentially of, any of the above glycerides with limited amounts, for example, less than approximately 20 percent by weight, of the corresponding acid hydrolysis product of any of said glycerides. A caveat above is that the principal proportion, normally at least 80 percent by weight, of any of said glycerides is chemically identical to fully hydrogenated ricinoleic acid glyceride, i.e., 12-hydroxystearic acid glyceride.It is well known in the state of the art, for example, to modify hydrogenated castor oil so that in a given triglyceride there will be two 12-hydroxystearic fractions and one stearic fraction. Similarly, it is foreseen that hydrogenated castor oil may not be fully hydrogenated. In contrast, the invention excludes poly(oxyalkylated) castor oils when these do not meet the melting criteria.
[0208] The crystallizable glyceride(s) used in the present invention may have a melting point of approximately 40 degrees Celsius to approximately 100 degrees Celsius. hydroxamate
[0209] Preferably, the composition comprises hydroxamate.
[0210] Whenever used, the term 'hydroxamic acid' or 'hydroxamate' Petition 870250092227, dated 09 / 10 / 2025, page 37 / 141 33 / 63 covers both hydroxamic acid and the corresponding hydroxamate (salt of hydroxamic acid), unless otherwise indicated.
[0211] Hydroxamic acids are a class of chemical compounds in which a hydroxylamine is inserted into a carboxylic acid. The general structure of a hydroxamic acid is as follows, with formula IX: the II C\ ^ / OH R1N IH (IX),
[0212] where R1 is an organic residue, for example, alkyl or alkylene groups. Hydroxamic acid may be present as its corresponding alkali metal salt or hydroxamate. The preferred salt is the potassium salt.
[0213] Hydroxamates can be conveniently formed from the corresponding hydroxamic acid by replacing the acidic hydrogen atom with a cation, as in chemical reaction 2: O 0 © L (Reaction 2)
[0214] L+ is a monovalent cation, for example the alkali metals (e.g. potassium, sodium), or ammonium or a substituted ammonium.
[0215] In the present invention, hydroxamic acid or its corresponding hydroxamate has the structure of formula X: (X), where R1 is a linear or branched C4-C20 alkyl, or a substituted linear or branched C4-C20 alkyl, or a linear or branched C4-C20 alkenyl, or Petition 870250092227, dated 09 / 10 / 2025, p. 38 / 141 34 / 63 a linear or branched substituted C4-C20 alkenyl group, or an alkyl ether group CH3(CH2)n(EO)m, where n is from 2 to 20 and is from 1 to 12, or a substituted alkyl ether group CH3(CH2)n(E0)m, where n is from 2 to 20 and is from 1 to 12, and the types of substitution include one or more of NH2, OH, S, O- and COOH, and R2 is selected from hydrogen and a portion that is part of a cyclic structure with a branched R1 group.
[0216] Preferred hydroxamates are those in which R2 is hydrogen and R1 is Cs to C14 alkyl, preferably normal alkyl, with maximum preference for saturated alkyl.
[0217] The general structure of a hydroxamic acid in the context of the present invention is indicated in formula X, and R1 is as defined above. When R1 is an alkyl ether group (CH3(CH2)n(EO)m), where n is from 2 to 20 and e is from 1 to 12, then the alkyl portion terminates this side group. Preferably, R1 is chosen from the group consisting of normal alkyl groups C4, C5, C6, C7, C8, C9, C10, C11, C12 and C14, most preferably R1 is at least a normal C8-14 alkyl group. When the C8 material is used, this is called octylhydroxamic acid. The potassium salt (of formula XI) is particularly useful. octanehydroxamic acid K salt
[0218] However, other hydroxamic acids, although less preferred, are suitable for use in the present invention. These suitable compounds include, but are not limited to, the following compounds:
[0219] These hydroxamic acids include lysine hydroxamate HCl, methionine hydroxamate, and norvaline hydroxamate and are commercially available.
[0220] Hydroxamate is believed to act by binding to metal ions that are present in the dirt on the fabric. This binding action, which is, in fact, the Petition 870250092227, dated 09 / 10 / 2025, p. 39 / 141 35 / 63 The known sequestering property of hydroxamate is not, strictly speaking, of any use for removing dirt from fabric. The key is the "tail" of the hydroxamate, that is, the R1 group minus any branching that folds back into the amate nitrogen via the R2 group. The tail that has an affinity for the surfactant system is selected. This means that the dirt removal capacity of an already optimized surfactant system is further enhanced by the use of hydroxamate, as it effectively marks the difficult-to-remove particulate material (clay) as "dirt" for removal by the surfactant system acting on the hydroxamate molecules now attached to the particulates through their binding to the metal ions embedded in the clay-type particulates. Non-saponaceous surfactant detergents will adhere to the hydroxamate, leading to more surfactants interacting with the fabric, resulting in better dirt removal.In this way, hydroxamic acids act as a binding molecule that facilitates the removal and suspension of particulate dirt from the fabric in a washing liquid, thus intensifying the primary detergency.
[0221] Hydroxamates have a greater affinity for transition metals, such as iron, than for alkaline earth metals, for example calcium and magnesium; therefore, hydroxamic acid acts primarily to improve the removal of dirt from fabric, especially particulate dirt, and not additionally as a complexing agent for calcium and magnesium.
[0222] A preferred hydroxamate is cocohydroxamic acid with 80% solids available under the trade name RK853 near Axis House. The corresponding potassium salt is available near Axis House under the trade name RK852. Axis House also supplies cocohydroxamic acid as a 50% solids material under the trade name RK858. The 50% potassium salt of cocohydroxamate is available as RK857. Another preferred material is RK842, an alkylhydroxamic acid made from palm kernel oil, available near Axis House.
[0223] Preferably, hydroxamate is present at 0.1 to 3% by weight. Petition 870250092227, dated 09 / 10 / 2025, p. 40 / 141 36 / 63 of the composition, more preferably from 0.2 to 2% by weight of the composition.
[0224] Preferably, the weight ratio between the hydroxamate and the surfactant is 0.05 to 0.3, more preferably 0.75 to 0.2 and, most preferably, 0.8 to 1.2. The weights are calculated based on the protonated forms. DIRT-RELEASING POLYMERS
[0225] Dirt-releasing polymers help improve the release of dirt from fabric by modifying the fabric surface during washing. The adsorption of an SRP onto the fabric surface is promoted by an affinity between the chemical structure of the SRP and the target fiber. The SRPs for use in the invention may include various charged (i.e., anionic) and uncharged monomeric units, and the structures may be linear, branched, or have a star conformation. The SRP structure may also include termination groups to control the molecular weight or to alter polymeric properties, such as surface activity. The weight-average molecular weight (Mw) of the SRP may suitably range from about 1000 to about 20,000 and preferably range from about 1500 to about 10,000.
[0226] The SRPs for use in the invention may be suitably selected from copolyesters of dicarboxylic acids (e.g., adipic acid, phthalic acid or terephthalic acid), diols (e.g., ethylene glycol or propylene glycol) and polydiols (e.g., polyethylene glycol or polypropylene glycol). The copolyester may also include monomeric units substituted with anionic groups, for example, sulfonated isophthaloyl units.Examples of such materials include oligomeric esters produced by transesterification / oligomerization of poly(ethylene glycol) methyl ether, dimethyl terephthalate (DMT), propylene glycol (PG) and poly(ethylene glycol) (PEG); partially and fully anionic oligomeric esters provided with termination, for example, oligomers of ethylene glycol (EG), PG, DMT and sodium 3,6-dioxa-8-hydroxyoctanesulfonate; nonionic block polyester oligomeric compounds provided with termination, for example, those produced from DMT, PEG with Me termination and EG and / or PG, or a combination of DMT, EG. Petition 870250092227, dated 09 / 10 / 2025, page 41 / 141 37 / 63 and / or PG, PEG with Me termination and sodium dimethyl-5-sulfoisophthalate and copolymer blocks of ethylene terephthalate or propylene terephthalate with polyethylene oxide or polypropylene oxide terephthalate.
[0227] Other types of SRP for use in the invention include cellulosic derivatives, for example, hydroxyether cellulosic polymers, C1-C4 alkylcelluloses and C4 hydroxyalkylcelluloses; polymers with hydrophobic poly(vinyl) ester segments, for example, poly(vinyl) ester graft copolymers, such as C1-C6 vinyl esters (e.g., poly(vinyl) acetate) grafted onto polyalkylene oxide backbones; poly(vinyl caprolactam) and related copolymers with monomers, for example, vinylpyrrolidone and / or dimethylaminoethyl methacrylate; and polyesterpolyamide polymers prepared by condensation of adipic acid, caprolactam and polyethylene glycol.
[0228] Preferred SRPs for use in the invention include copolyesters formed by condensation of terephthalic acid ester and diol, preferably 1,2-propanediol, and further comprise a termination formed from alkylene oxide repeating units with an alkyl group at the termination. Examples of such materials have a structure corresponding to formula XII: THE CO-R2(XII), where R1 and R2, independently of each other, are X-(OC2H4)n-(OC3H6)m; where X is C1-4 alkyl and preferably methyl; n is a number from 12 to 120, preferably from 40 to 50; m is a number from 1 to 10, preferably from 1 to 7; and a is a number from 4 to 9.
[0229] Since they are averages, m, nea are not necessarily whole numbers for the bulk polymer. Petition 870250092227, dated 09 / 10 / 2025, p. 42 / 141 38 / 63
[0230] Mixtures of any of the materials described above may also be used.
[0231] The total level of polyester-based SRP can vary from 0.1 to 10%, depending on the level of polymer intended for use in the final diluted composition, and is desirably from 0.3 to 7%, more preferably from 0.5 to 5% (by weight based on the total weight of the diluted composition).
[0232] Suitable dirt-releasing polymers are described in more detail in U.S. Patents Nos. 5,574,179; 4,956,447; 4,861,512; 4,702,857, WO 2007 / 079850 and WO 2016 / 005271. If employed, the dirt-releasing polymers will typically be incorporated into the liquid laundry detergent compositions of the present invention at concentrations ranging from 0.01% to 10%, more preferably from 0.1% to 5%, by weight of the composition. ENZYMES
[0233] The composition preferably comprises an enzyme selected from cellulase, a protease and an amylase / mannase mixture.
[0234] In addition, other enzymes may be present, for example, those described below.
[0235] Preferably, the composition may comprise an effective amount of one or more enzymes preferably selected from the group comprising lipases, hemicellulases, peroxidases, hemicellulases, xylanases, xanthanase, lipases, phospholipases, esterases, cutinases, pectinases, carrageenases, pectate lyases, keratinases, reductases, oxidases, phenoloxidases, lipoxygenases, ligninases, pullulanases, tannases, pentosanases, malanases, βglucanases, arabinosidases, hyaluronidase, chondroitinase, laccase, tannases, nucleases (such as deoxyribonuclease and / or ribonuclease), phosphodiesterases, or mixtures thereof.
[0236] Preferably, the enzyme level is from 0.1 to 100, more preferably from 0.5 to 50, with the maximum preference being 5 to 30 mg of active enzyme protein per 100 g of finished liquid composition for washing. Petition 870250092227, dated 09 / 10 / 2025, page 43 / 141 39 / 63 clothes.
[0237] Examples of preferred enzymes are marketed under the following trade names: Purafect Prime®, Purafect®, Preferenz® (DuPont), Savinase®, Pectawash®, Mannaway®, Lipex®, Lipoclean®, Whitzyme®, Stainzyme®, Stainzyme Plus®, Natalase®, Mannaway®, Amplify®Xpect®, Celluclean® (Novozymes), Biotouch (AB Enzymes), Lavergy® (BASF).
[0238] Detergent enzymes are discussed in documents WO2020 / 186028 (Procter and Gamble), WO2020 / 200600 (Henkel), WO2020 / 070249 (Novozymes), WO2021 / 001244 (BASF) and WO2020 / 259949 (Unilever).
[0239] A nuclease enzyme is an enzyme capable of cleaving the phosphodiester bonds between the nucleotide subunits of nucleic acids and is preferably a deoxyribonuclease or ribonuclease enzyme. Preferably, the nuclease enzyme is a deoxyribonuclease, preferably selected from any of the classes EC 3.1.21.x, wherein x = 1, 2, 3, 4, 5, 6, 7, 8 or 9, EC 3.1.22.y, wherein y = 1, 2, 4 or 5, EC 3.1.30.Z, wherein z = 1 or 2, EC 3.1.31.1 and mixtures thereof.
[0240] Protease enzymes hydrolyze the bonds within peptides and proteins; in the context of laundry, this results in greater removal of stains containing protein or peptide. Examples of suitable protease families include aspartic proteases; cysteine proteases; glutamic proteases; asparagine peptide lyase; serine proteases and threonine proteases. These protease families are described in the MEROPS peptidase database (http: / / merops.sanger.ac.uk / ). Serine proteases are preferred. Subtilase-type serine proteases are more preferred. The term subtilases refers to a subgroup of serine protease according to Siezen et al., Protein Engng. 4 (1991) 719-737 and Siezen et al. Protein Science 6 (1997) 501-523. Serine proteases are a subgroup of proteases characterized by having a serine in the active site, which forms a covalent adduct with the substrate. Subtilases can be divided into 6 subdivisions, namely, the Subtilisin family, the Termitase family, Petition 870250092227, dated 09 / 10 / 2025, page 44 / 141 40 / 63 the Proteinase K family, the Lantibiotic Peptidase family, the Kexin family, and the Pyrolysin family.
[0241] Examples of subtilases are those derived from bacilli, such as Bacillus lentus, B. alkalophilus, B. subtilis, B. amyloliquefaciens, Bacillus pumilus and Bacillus gibsonii described in documents US7262042 and W009 / 021867, and subtilisin lentus, subtilisin Novo, subtilisin Carlsberg, Bacillus licheniformis, subtilisin BPN', subtilisin 309, subtilisin 147 and subtilisin 168 described in WO 89 / 06279 and protease PD138 described in document (WO 93 / 18140). Other useful proteases may include those described in documents WO 92 / 175177, WO 01 / 016285, WO 02 / 026024 and WO 02 / 016547. Examples of trypsin-like proteases are trypsin (e.g., of porcine or bovine origin) and the Fusarium protease described in documents WO 89 / 06270, WO 94 / 25583 and WO 05 / 040372, and the chymotrypsin proteases derived from Cellumonas described in documents WO 05 / 052161 and WO 05 / 052146.
[0242] The protease is most preferably a subtilisin (EC 3.4.21.62).
[0243] Examples of subtilases are those derived from Bacillus, such as Bacillus lentus, B. alkalophilus, B. subtilis, B. amyloliquefaciens, Bacillus pumilus and Bacillus gibsonii described in documents US7262042 and WO09 / 021867, subtilisin lentus, subtilisin Novo, subtilisin Carlsberg, Bacillus licheniformis, subtilisin BPN', subtilisin 309, subtilisin 147 subtilisin 168 described in document no WO89 / 06279 and protease PD138 described in document no (WO93 / 18140). Preferably, the subtilisin is derived from Bacillus, preferably Bacillus lentus, B. alkalophilus, B. subtilis, B. amyloliquefaciens, Bacillus pumilus and Bacillus gibsonii as described in US 6,312,936 B1, US 5,679,630, US 4,760,025, US 7,262,042 and WO 09 / 021867. More preferably, the subtilisin is derived from Bacillus gibsonii or Bacillus lentus.
[0244] Suitable commercially available protease enzymes include those marketed under the trade names Alcalase®, Blaze®; Duralase™, Durazym™, Relase®, Relase® Ultra, Savinase®, Savinase® Ultra. Petition 870250092227, dated 09 / 10 / 2025, page 45 / 141 41 / 63 Primase®, Polarzyme®, Kannase®, Liquanase®, Liquanase® Ultra, Ovozyme®, Coronase®, Coronase® Ultra, Neutrase®, Everlase® and Esperase® could all be marketed as Ultra® or Evity® (Novozymes A / S).
[0245] Suitable amylases (alpha and / or beta) include those of bacterial or fungal origin. Chemically modified or genetically engineered protein mutants are included. Amylases include, for example, alpha-amylases obtained from Bacillus, for example, a special strain of B. licheniformis, described in more detail in GB 1,296,839, or strains of the Bacillus species disclosed in documents WO 95 / 026397 or WO 00 / 060060. Commercially available amylases are Duramyl™, Termamyl™, Termamyl Ultra™, Natalase™, Stainzyme™, Fungamyl™ and BAN™ (Novozymes A / S), Rapidase™ and Purastar™ (from Genencor International Inc.).
[0246] Suitable cellulases include those of bacterial or fungal origin. Chemically modified or genetically engineered protein mutants are included. Suitable cellulases include cellulases of the genera Bacillus, Pseudomonas, Humicola, Fusarium, Thielavia, Acremonium, for example, fungal cellulases produced from Humicola insolens, Thielavia terrestris, Myceliophthora thermophila, and Fusarium oxysporum disclosed in documents US 4,435,307, US 5,648,263, US 5,691,178, US 5,776,757, WO 89 / 09259, WO 96 / 029397 and WO 98 / 012307. Commercially available cellulases include Celluzyme™, Carezyme™, Celluclean™, Endolase™, Renozyme™ (Novozymes A / S), Clazinase™ and Puradax HA™ (Genencor International Inc.) and KAC-500(B)™ (Kao Corporation). Celluclean™ is preferred. LIPASE
[0247] Lipases are lipid esterase enzymes and the terms lipid esterase and lipase are used here synonymously.
[0248] The composition preferably comprises from 0.0005 to 0.5% by weight, preferably from 0.005 to 0.2% by weight of a lipase.
[0249] Lipid scavenging esterases are discussed in Enzymes in Petition 870250092227, dated 09 / 10 / 2025, p. 46 / 141 42 / 63 Detergency edited by Jan H. Van Ee, Onno Misset, and Erik J. Baas (1997 Marcel Dekker, New York).
[0250] Lipid esterase can be selected from lipase enzymes in EC class 3.1 or 3.2 or a combination thereof.
[0251] Preferably, the scavenging lipid esterases are selected from: (1) Triacylglycerol lipases (EC 3.1.1.3) (2) Carboxylic ester hydrolase (EC 3.1.1.1) (3) Cutinase (EC 3.1.1.74) (4) Sterol esterase (EC 3.1.1.13) (5) Wax ester hydrolase (EC 3.1.1.50)
[0252] Triacylglycerol lipases (EC 3.1.1.3) are the most preferred.
[0253] Suitable triacylglycerol lipases may be selected from variants of Humicola lanuginosa lipase (Thermomyces lanuginosus). Other suitable triacylglycerol lipases may be selected from variants of Pseudomonas lipases, for example, from P. alcaligenes or P. pseudoalcaligenes (EP 218 272), P. cepacia (EP 331 376), P. stutzeri (GB 1,372,034), P. fluorescens, strain Pseudomonas sp. SD 705 (WO 95 / 06720 and WO 96 / 27002), P. wisconsinensis (WO 96 / 12012), Bacillus lipases, e.g. from B. subtilis (Dartois et al. (1993), Biochemica et Biophysica Acta, 1131, 253-360), B. stearothermophilus (JP 64 / 744992) or B. pumilus (WO 91 / 16422).
[0254] Suitable carboxylic ester hydrolases can be selected from wild-type variants or endogenous carboxylic ester hydrolase variants of B. gladioli, P. fluorescens, P. putida, B. acidocaldarius, B. subtilis, B. stearothermophilus, Streptomyces chrysomallus, S. diastatochromogenes and Saccaromyces cerevisiae.
[0255] Suitable cutinases may be selected from variants of wild types or variants of cutinases endogenous to Aspergillus strains, in particular Aspergillus oryzae, an Alternaria strain, in particular Alternaria brassiciola, a Fusarium strain, in particular Petition 870250092227, dated 09 / 10 / 2025, page 47 / 141 43 / 63 Fusarium solani, Fusarium solani pisi, Fusarium oxysporum, Fusarium oxysporum cepa, Fusarium roseum culmorum or Fusarium roseum sambucium, a strain of Helminthosporum, in particular Helminthosporum sativum, a strain of Humicola, in particular Humicola insolens, a strain of Pseudomonas, in particular Pseudomonas mendocina, or Pseudomonas putida, a strain of Rhizoctonia, in particular Rhizoctonia solani, a strain of Streptomyces, in particular Streptomyces scabies, a strain of Coprinopsis, in particular Coprinopsis cinerea, a strain of Thermobifida, in particular Thermobifida fusca, a strain of Magnaporthe, in particular Magnaporthe grisea or a strain of Ulocladium, in particular Ulocladium consortiale.
[0256] In a preferred embodiment, the cutinase is selected from variants of the Pseudomonas mendocina cutinase described in WO 2003 / 076580 (Genencor), for example, the variant with three substitutions at I178M, F180V and S205G.
[0257] In another preferred embodiment, cutinase is a wild-type variant or variant of six endogenous cutinases in Coprinopsis cinerea described in H. Kontkanen et al., App. Environ. Microbiologia, 2009, p2148-2157.
[0258] In another preferred embodiment, cutinase is a wild-type variant or variant of the two endogenous cutinases in Trichoderma reesei described in document WO2009007510 (VTT).
[0259] In a most preferred embodiment, the cutinase is derived from a Humicola insolens strain, in particular the Humicola insolens DSM 1800 strain. The Humicola insolens cutinase is described in WO 96 / 13580, which is incorporated herein by reference. The cutinase may be a variant, for example, one of the variants disclosed in WO 00 / 34450 and WO 01 / 92502. Preferred cutinase variants include the variants listed in Example 2 of WO 01 / 92502. Preferred commercial cutinases include Novozym 51032 (available from Novozymes, Bagsvaerd, Denmark). Petition 870250092227, dated 09 / 10 / 2025, page 48 / 141 44 / 63
[0260] Suitable sterol esterases can be derived from an Ophiostoma strain, for example, Ophiostoma piceae, a Pseudomonas strain, for example, Pseudomonas aeruginosa, or a Melanocarpus strain, for example, Melanocarpus albomyces.
[0261] In a most preferred embodiment, the sterol esterase is the Melanocarpus albomyces sterol esterase described in H. Kontkanen et al., Enzyme Microb Technol., 39, (2006), 265-273.
[0262] Suitable wax ester hydrolases may be derived from Simmondsia chinensis. The lipid esterase is preferably selected from lipase enzyme in class EC 3.1.1.1 or 3.1.1.3 or a combination thereof, with EC3.1.1.3 being the most preferred.
[0263] Examples of EC 3.1.1.3 lipases include those described in WIPO publications WO 00 / 60063, WO 99 / 42566, WO 02 / 062973, WO 97 / 04078, WO 97 / 04079 and US 5,869,438. Preferred lipases are produced by Absidia reflexa, Absidia corymbefera, Rhizmucor miehei, Rhizopus deleman, Aspergillus niger, Aspergillus tubigensis, Fusarium oxysporum, Fusarium heterosporum, Aspergillus oryzea, Penicillium camembertii, Aspergillus foetidus, Aspergillus niger, Thermomyces lanoginosus (synonym: Humicola lanuginosa) and Landerina penisapora, particularly Thermomyces lanoginosus. Certain preferred lipases are supplied by Novozymes under the trade names Lipolase®, Lipolase Ultra®, Lipoprime®, Lipoclean® and Lipex® (registered trade names of Novozymes) and LIPASE P AMANO® available from Areario Pharmaceutical Co. Ltd., Nagoya, Japan, AMANO-CES®, commercially available from Toyo Jozo Co., Tagata, Japan; and other Chromobacter viscosum lipases from Amersham Pharmacia Biotech., Piscataway, New Jersey, USA and Diosynth Co., Netherlands, and other lipases, such as Pseudomonas gladioli. Additional useful lipases are described in WIPO publications WO 02062973, WO 2004 / 101759, WO 2004 / 101760 and WO 2004 / 101763. In one embodiment, suitable lipases include the “first-cycle lipases” described in WO 00 / 60063 and US Patent 6,939,702 Blvd. Petition 870250092227, dated 09 / 10 / 2025, page 49 / 141 45 / 63 preferably a variant of SEQ ID No. 2, more preferably a variant of SEQ ID No. 2 having at least 90% homology with SEQ ID No. 2 comprising a substitution of an electrically neutral or negatively charged amino acid by R or K at any of the positions 3, 224, 229, 231 and 233, with a variant of maximum preference comprising T23 IR and N233R mutations, the most preferred variant being marketed under the trade names Lipex® (Novozymes).
[0264] The above-mentioned lipases can be used in combination (any mixture of lipases can be used). Suitable lipases can be purchased from Novozymes, Bagsvaerd, Denmark; Areario Pharmaceutical Co. Ltd., Nagoya, Japan; Toyo Jozo Co., Tagata, Japan; Amersham Pharmacia Biotech., Piscataway, New Jersey, USA; Diosynth Co., Oss, Netherlands and / or produced according to the examples contained herein. Lipid esterases with reduced odor generation potential and relatively good performance are particularly preferred, as described in WO 2007 / 087243. These include Lipoclean® (Novozyme).
[0265] Preferred commercially available lipase enzymes include Lipolase™ and Lipolase Ultra™, Lipex™ and Lipoclean™ (Novozymes A / S). FLUORESCENT AGENT
[0266] Preferably, the composition comprises a fluorescence agent. More preferably, the fluorescence agent comprises a distyrylbiphenyl sulfonate fluorescence agent, for example, that discussed in Chapter 7 of Industrial Dyes (K. Hunger ed, Wiley VCH 2003).
[0267] Distyrylbiphenyl sulfonate fluorescence agents are discussed in document US5145991 (Ciba Geigy).
[0268] 4,4'-distyrylbiphenyl is preferred. Preferably, the fluorescent agent contains 2 SO3- groups.
[0269] Most preferably, the fluorescent agent has the formula XIII structure: Petition 870250092227, dated 09 / 10 / 2025, page 50 / 141 46 / 63 (XIII)
[0270] Where X is a suitable counterion, preferably selected from metal ions, ammonium ions, or amine salt ions, more preferably alkali metal ions, ammonium ions or amine salt ions, most preferably Na or K.
[0271] Preferably, the fluorescence agent is present at levels of 0.01% by weight to 1% by weight of the composition, more preferably 0.05 to 0.4% by weight, with the most preference being 0.11 to 0.3% by weight.
[0272] C16 and / or C18 alkyl-based surfactants, both alcohol ethoxylate and alcoholic ether sulfate, are typically available as a mixture with raw materials having C16 and C18 alkyl chain lengths. ANTIFOAMING
[0273] The composition may also include an antifoaming agent, but it is preferred that it does not. Antifoaming materials are well known in the state of the art and include silicones and fatty acids.
[0274] Preferably, the fatty acid soap is present from 0 to 0.5% by weight of the composition (as measured with reference to the acid added to the composition), more preferably from 0 to 0.1% by weight and, most preferably, zero.
[0275] Suitable fatty acids, in the context of this invention, include aliphatic carboxylic acids of the formula RCOOH, where R is a linear or branched alkyl or alkenyl chain containing 6 to 24, more preferably 10 to 22, most preferably 12 to 18 carbon atoms and 0 or 1 double bond. Preferred examples of such materials include saturated C12-18 fatty acids, such as lauric acid, myristic acid, palmitic acid or stearic acid; and fatty acid mixtures in which 50 to 100% (by weight based on the total weight of the mixture) consists of saturated C12-18 fatty acids. Such mixtures Petition 870250092227, dated 09 / 10 / 2025, p. 51 / 141 47 / 63 can typically be derived from natural fats and / or optionally hydrogenated natural oils (such as coconut oil, palm kernel oil or tallow).
[0276] The fatty acids may be present in the form of their sodium, potassium or ammonium salts and / or in the form of soluble salts of organic bases, such as mono-, di- or triethanolamine. Mixtures of any of the materials described above may also be used.
[0277] For accounting purposes in the formulation, fatty acids and / or their salts (as defined above) are not included in the surfactant level or complexing agent level. Preferably, the composition comprises 0.2 to 10% by weight of the cleaning polymer of the composition. Preferably, the cleaning polymer is selected from polyethyleneimine alkoxylate, dirt-releasing polyester polymers and PEG / vinyl acetate copolymer. PRESERVATIVE
[0278] Food preservatives are discussed in Food Chemistry (Belitz H.-D., Grosch W., Schieberle), 4th edition Springer.
[0279] The formulation preferably contains a preservative or a mixture of preservatives selected from benzoic acid and its salts, alkyl esters of p-hydroxybenzoic acid and its salts, sorbic acid, diethyl pyrocarbonate, dimethyl pyrocarbonate, preferably benzoic acid and its salts, with sodium benzoate being the most preferred.
[0280] An alternatively preferred preservative is selected from sodium benzoate, phenoxyethanol, dehydroacetic acid and mixtures thereof.
[0281] The preservative is present at 0.1 to 3% by weight, preferably 0.3% by weight to 1.5% by weight. Weights are calculated for the protonated form, when appropriate.
[0282] Preferably, the composition comprises sodium benzoate from 0.1 to 3% by weight, preferably from 0.3% by weight to 1.5% by weight of the composition.
[0283] Preferably, the composition comprises phenoxyethanol from 0.1 to 3% Petition 870250092227, dated 09 / 10 / 2025, page 52 / 141 48 / 63 by weight, preferably from 0.3% by weight to 1.5% by weight of the composition.
[0284] Preferably, the composition comprises dehydroacetic acid from 0.1 to 3% by weight, preferably from 0.3% by weight to 1.5% by weight of the composition.
[0285] Preferably, the composition comprises less than 0.1% by weight of isothiazolinone-based preservative, more preferably less than 0.05% by weight. Hydrotropes
[0286] One composition of the invention may incorporate non-aqueous vehicles, for example, hydrotropes, cosolvents and phase stabilizers. These materials are typically low molecular weight organic liquids, soluble in water or miscible in water, for example, C1 to C5 monohydric alcohols (e.g., ethanol and n- or i-propanol); C2 to C6 diols (e.g., monopropylene glycol and dipropylene glycol); C3 to C9 triols (e.g., glycerol); polyethylene glycols having an average molecular weight (Mw) ranging from about 200 to 600; C1 to C3 alkanolamines, for example, mono-, di- and triethanolamines; and alkylaryl sulfonates having up to 3 carbon atoms in the lower alkyl group (e.g., the sodium and potassium xylene, toluene, ethylbenzene and isopropylbenzene (cumene) sulfonates).
[0287] Mixtures of any of the materials described above may also be used.
[0288] Non-aqueous vehicles, when included, may be present in an amount ranging from 0.1 to 3%, preferably from 0.5 to 1% (by weight based on the total weight of the composition). The hydrotrope level used is related to the surfactant level and it is desirable to use a hydrotrope level to manage viscosity in these compositions. Preferred hydrotropes are monopropylene glycol and glycerol. CO-SURFACTANTS
[0289] A composition of the invention may contain one or more co-surfactants (for example, amphoteric (zwitterionic) and / or cationic surfactants), in addition to Petition 870250092227, dated 09 / 10 / 2025, page 53 / 141 49 / 63 non-saponaceous anionic and / or non-ionic detergent surfactants described above.
[0290] Specific cationic surfactants include C8 to C18 alkyldimethyl ammonium halides and derivatives thereof, in which one or two hydroxyethyl groups replace one or two of the methyl groups, and mixtures thereof. The cationic surfactant, when included, may be present in an amount ranging from 0.1 to 5% (by weight based on the total weight of the composition).
[0291] Specific amphoteric (zwitterionic) surfactants include alkylamine oxides, alkylbetaines, alkylamidopropyl betaines, alkyl sulfobetaines (sultains), alkyl glycinates, alkyl carboxyglycinates, alkyl amphoacetates, alkyl amphopropionates, alkyl amphoglycinates, alkylamidopropyl hydroxysultains, acyl taurates and acyl glutamates, having alkyl radicals containing from about 8 to about 22 carbon atoms preferably selected from C12, C14, C16, C18 and C18:1, the term “alkyl” being used to include the alkyl portion of higher acyl radicals. The amphoteric (zwitterionic) surfactant, when included, may be present in an amount ranging from 0.1 to 5% (by weight based on the total weight of the composition).
[0292] Mixtures of any of the materials described above may also be used. COMPLEXING AND SEQUESTANTING AGENTS
[0293] Detergent compositions may also optionally contain relatively low levels of organic detergent complexing or sequestering agent material. Examples include alkali metal, citrates, succinates, malonates, carboxymethyl succinates, carboxylates, polycarboxylates, and polyacetyl carboxylates. Specific examples include sodium, potassium, lithium salts of oxydisuccinic acid, melitic acid, polycarboxylic benzene acids, and citric acid. Other examples are DEQUEST™, organic phosphonate-type sequestering agents marketed by Monsanto, and alkane-hydroxy phosphonates.
[0294] Other suitable organic complexing agents include Petition 870250092227, dated 09 / 10 / 2025, page 54 / 141 50 / 63 higher molecular weight polymers and copolymers known to exhibit complexing agent properties. For example, these materials include suitable polyacrylic acid, polymaleic acid and polyacrylic / polymaleic acid copolymers and their salts, for example, those marketed by BASF under the name SOKALAN™. If used, the organic complexing agent materials may comprise from about 0.5 percent to 20 percent by weight, preferably from 1 percent by weight to 10 percent by weight, of the composition. The preferred level of complexing agent is less than 10 percent by weight and preferably less than 5 percent by weight of the composition.
[0295] More preferably, the liquid laundry detergent formulation is a non-phosphate complexed laundry detergent formulation, i.e., it contains less than 1% by weight of phosphate.Ideally, the laundry detergent formulation should be unstructured, i.e., contain less than 1% by weight of complexing agent. Generally, in liquids, a preferred sequestrant is HEDP (1-hydroxyethylidene-1,1-diphosphonic acid), for example, sold as Dequest 2010. Also suitable, but less preferred as cleaning results are inferior, is Dequest®2066 (heptasodium diethylenetriamine penta(methylenephosphonic acid or DTPMP)). However, it is preferred that the composition comprise less than 0.5% by weight of phosphonate-based sequestrant and, more preferably, less than 0.1% by weight of phosphonate-based sequestrant. Ideally, the composition should be free of phosphonate-based sequestrant. POLYMERIC THICKENERS
[0296] A composition of the invention may comprise one or more polymeric thickeners. Polymeric thickeners suitable for use in the invention include hydrophobically modified alkaline expandable emulsion copolymers (HASE). Exemplary HASE copolymers for use in the invention include linear or crosslinked copolymers that are prepared by addition polymerization of a monomeric mixture including at least one Petition 870250092227, dated 09 / 10 / 2025, page 55 / 141 51 / 63 acidic vinyl monomer, for example, (meth)acrylic acid (e.g., methacrylic acid and / or acrylic acid); and at least one associative monomer. The term “associative monomer”, in the context of the present invention, denotes a monomer having an ethylenically unsaturated cross-section (for addition polymerization with the other monomers in the mixture) and a hydrophobic cross-section. A preferred type of associative monomer includes a polyoxyalkylene cross-section between the ethylenically unsaturated cross-section and the hydrophobic cross-section.The preferred HASE copolymers for use in the invention include linear or crosslinked copolymers prepared by (meth)acrylic acid addition polymerization with (i) at least one associative monomer selected from linear or branched C8-C40 alkyl (preferably linear C12-C22 alkyl) polyethoxylated (meth)acrylates; and (ii) at least one additional monomer selected from C1-C4 alkyl (meth)acrylates, polyacid vinyl monomers (e.g., maleic acid, maleic anhydride and / or salts thereof) and mixtures thereof. The polyethoxylated portion of the associative monomer (i) generally comprises about 5 to about 100, preferably about 10 to about 80, and more preferably about 15 to about 60 oxyethylene repeating units.
[0297] Mixtures of any of the materials described above may also be used.
[0298] When included, a composition of the invention will preferably comprise from 0.01 to 5% by weight of the composition, however depending on the amount intended for use in the final diluted product, which is desirably from 0.1 to 3% by weight based on the total weight of the diluted composition. TONING DYES
[0299] Tinting dyes can be used to improve the performance of compositions. Preferred dyes are violet or blue. It is believed that depositing a low level of a dye of these shades onto fabrics masks the yellowing of fabrics. An additional advantage of tinting dyes is that they can be used to mask any yellow hue in the fabric itself. Petition 870250092227, dated 09 / 10 / 2025, page 56 / 141 52 / 63 composition.
[0300] Coloring dyes are well known in the state of the art for liquid formulations for laundry.
[0301] Suitable and preferred classes of dyes include direct dyes, acid dyes, hydrophobic dyes, basic dyes, reactive dyes, and dye conjugates. Preferred examples are Disperse Violet 28, Acid Violet 50, anthraquinone dyes covalently linked to ethoxylate or propoxylated polyethyleneimine as described in WO2011 / 047987 and WO 2012 / 119859.
[0302] Alkoxylated monoazothiophenes, dye with CAS No. 72749-80-5, acid blue 59 and phenazine dye selected from formula XIV: N(CH2CH2Y2)2(XIV), where: X3 is selected from: -H; -F; -CHs; -C2H5; -OCH3; and -OC2H5; X4 is selected from: -H; -CH3; -C2H5; -OCH3; and -OC2H5; Y2 is selected from among: -OH, -OCH2CH2OH, -CH(OH)CH2OH, -OC(O)CH3, and C(O)OCH3.
[0303] Thiophene alkoxylated dyes are discussed in documents WO 2013 / 142495 and WO 2008 / 087497. The tinting dye is preferably present in the composition in the range of 0.0001 to 0.1% by weight. Depending on the nature of the tinting dye, there are preferred ranges depending on the effectiveness of the tinting dye, which depends on the class and the effectiveness in particular within a particular class. MICROCAPSULES
[0304] One type of microparticle suitable for use in the invention is a Petition 870250092227, dated 09 / 10 / 2025, page 57 / 141 53 / 63 Microcapsule. Microencapsulation can be defined as the process of enclosing or enveloping one substance within another substance on a very small scale, resulting in capsules ranging from less than a micron to several hundred microns in size. The material that is encapsulated may be called the core, component or active agent, load, paid load, center or internal phase. The material that encapsulates the core may be called the coating, membrane, shell or wall material.
[0305] In general, microcapsules typically have at least one continuous spherical shell surrounding the core. The shell may contain pores, free spaces, or interstitial openings depending on the materials and encapsulation techniques employed. Multiple shells can be made with the same or different encapsulation materials and can be arranged in layers of varying thicknesses around the core. Alternatively, microcapsules can be asymmetrically and variably shaped with a number of smaller droplets of core material embedded throughout the microcapsule.
[0306] The shell can have a barrier function that protects the core material from the environment external to the microcapsule, but it can also act as a means of modulating the release of core materials, for example, fragrance. Thus, a shell can be water-soluble or water-expandable, and fragrance release can occur in response to exposure of the microcapsules to a humid environment. Similarly, if a shell is temperature-sensitive, a microcapsule can release fragrance in response to elevated temperatures. Microcapsules can also release fragrance in response to shear forces applied to the surface of the microcapsules.
[0307] A preferred type of polymeric microparticle suitable for use in the invention is a polymeric core-shell microcapsule in which, generally, at least one continuous spherical shell of polymeric material encloses a core containing the fragrance formulation (f2). The shell will typically comprise at most 20% by weight based on the total weight of the Petition 870250092227, dated 09 / 10 / 2025, page 58 / 141 54 / 63 microcapsule. The fragrance formulation (f2) will typically comprise from about 10 to about 60%, and preferably from about 20 to about 40% by weight based on the total weight of the microcapsule. The amount of fragrance (f2) can be measured by taking a fluid mass of the microcapsules, extracting it in ethanol, and measuring it by liquid chromatography. OTHER OPTIONAL COMPONENTS
[0308] A composition of the invention may contain other optional components to enhance performance and / or consumer acceptability. Examples of such components include foam enhancers, preservatives (e.g., bactericides), polyelectrolytes, anti-shrinkage agents, anti-wrinkle agents, antioxidants, sunscreens, anti-corrosion agents, drape enhancers, antistatic agents, ironing aids, colorants, pearlescent and / or opacifying agents, as well as tinting dyes. Each of these components will be present in an amount effective to achieve this purpose. Generally, these optional components are included individually in an amount of up to 5% (by weight based on the total weight of the diluted composition) and then adjusted depending on the dilution ratio with water. AUTOMATIC DOSING
[0309] In a further aspect, the composition of the invention can be used in an automatic dosing washer.
[0310] Consequently, and in a further aspect, a washing machine is provided comprising a detergent reservoir, wherein said reservoir comprises from 80 mL to 3000 mL of liquid detergent according to the first aspect.
[0311] In yet another aspect, a method of cleaning fabric is provided comprising filling a washing machine reservoir with 80 mL to 3000 mL of a liquid detergent composition according to the first aspect, and performing at least two washing cycles before adding more liquid detergent to the reservoir. Petition 870250092227, dated 09 / 10 / 2025, p. 59 / 141 55 / 63
[0312] In yet another aspect, a method for cleaning fabric is provided comprising filling a washing machine reservoir with 80 mL to 3000 mL of a liquid detergent composition for washing clothes according to the first aspect, and performing a washing cycle by removing a portion of the liquid detergent from the reservoir and leaving at least 20 mL in the reservoir. In yet another aspect, a method for cleaning a first fabric is provided comprising filling a washing machine reservoir with 80 mL to 3000 mL of a liquid detergent composition according to the first aspect, and performing a first washing cycle by forming a first washing liquid in the washing machine by removing a portion of the liquid detergent from the reservoir and combining it with water to form a first washing liquid and washing said first fabric;
[0313] optionally rinse; and remove said first fabric from the washing machine; and perform an additional wash cycle to clean an additional fabric by removing a portion of the liquid detergent from the reservoir and combining it with water to form another washing liquid and wash said additional fabric;
[0314] optionally rinse; and remove said additional fabric from the washing machine;
[0315] optionally repeat the additional wash cycle; and
[0316] add additional liquid detergent to the reservoir.
[0317] A quantity of 80 mL to 3000 mL of liquid detergent characterizes a quantity of detergent that is greater than a dose. Preferably, the reservoir comprises 250 mL to 2500 mL, more preferably 400 mL to 2000 mL of liquid detergent.
[0318] The washing machine preferably comprises a detergent reservoir capable of storing up to 3000 mL of detergent. This washing machine is known in the market as an automatic dosing washing machine and is capable of storing enough liquid detergent for more than one wash cycle and preferably for many wash cycles. A typical example of this washing machine is found in document EP-A-3 071 742 (Electrolux). Petition 870250092227, dated 09 / 10 / 2025, p. 60 / 141 56 / 63 Preferably, the washer is a front-loading automatic washer.
[0319] Preferably, the washer comprises an outer casing, a washing tub that is disposed within the casing with its opening or inlet directly facing a laundry loading / unloading opening made in the front wall of the casing, a detergent release assembly that is structured to supply detergent to the washing tub, a main clean water supply circuit that is structured to be connected to the water supply system and to selectively channel a stream of clean water from the water supply system to the detergent release assembly and / or to the washing tub, and an equipment control panel that is structured to allow the user to manually select the desired washing cycle.
[0320] The detergent release assembly of the washing machine also comprises an automatic dosing detergent dispenser which is structured to automatically dose, based on the selected wash cycle, the appropriate amount of detergent to be used during the selected wash cycle, and which comprises: one or more detergent reservoirs, each structured to receive an amount of detergent to perform a plurality of wash cycles; and, for each detergent reservoir, a respective detergent feed pump which is structured to selectively draw, from the corresponding detergent reservoir, the amount of detergent to perform the selected wash cycle, and pump / channel said specific amount of detergent into a detergent collection chamber which communicates fluidly with the washing tub.
[0321] As well as the reservoir capable of holding the required amount of liquid detergent, the washing machine of the invention comprises a motor to drive the agitation of a drum. Water is distributed through the machine and a predetermined dose of detergent is added to this water to create the washing liquid. Petition 870250092227, dated 09 / 10 / 2025, p. 61 / 141 57 / 63
[0322] Using an automatic dosing washing machine, a consumer can perform a number of wash cycles before needing to add more liquid detergent to the dispenser. Typically, one dispenser is sufficient for five or more washes and potentially up to 20 or more depending on the size of the dispenser in the washing machine and also the dose to be used for each wash cycle.
[0323] Each wash cycle involves removing from the reservoir a volume of liquid laundry detergent sufficient to form a washing liquid suitable for cleaning the fabric. Preferably, this volume is 10 to 75 mL, but probably depends on the amount of fabric, the stains to be cleaned, and the amount of surfactant and other cleaning agents in the liquid laundry composition.
[0324] After the first wash cycle is completed, the remaining liquid detergent is kept in the washing machine until the next cycle starts, when an additional dose is pumped from the reservoir and mixed with water to form a washing liquid.
[0325] It is also possible that the compositions described herein may be loaded into the washing machine by means of a cartridge that is compatible with a component part of the washing machine. A cartridge may contain the required volume of liquid detergent composition, which may be from 200 mL to 3000 mL. EXAMPLES Example 1
[0326] A calcium catalyst was prepared in accordance with document EP1747183, with the following composition: n-butanol 73.5% by weight, calcium hydroxide 15% by weight, 2-ethylhexanoic acid 3.5% by weight, concentrated sulfuric acid 7.8% by weight from Example 1, was used in this example to produce narrow-range ethoxylates.
[0327] 915 g of a C14 alcohol (C12 = 10% by weight, C14 = 89% by weight, C16 = 1% by weight) were loaded into a 2-gallon capacity stainless steel autoclave fitted with a suspended stirrer, heating by Petition 870250092227, dated 09 / 10 / 2025, page 62 / 141 58 / 63 internal steam, water cooling, and thermocouple. C14 alcohol was vacuum-dried at 90 °C, then 2.1 g of catalyst were added and separated under vacuum at 90 °C until all solvent was removed (~5 minutes). The reactor was heated to 140 °C and ethylene oxide was slowly added. After an induction period, a small exothermic reaction is observed, in which the addition of ethylene oxide is continued at a pressure of 2 bars, until 3 moles of ethylene oxide in total have been consumed. The temperature was controlled using water cooling and allowed to reach 180 °C. When a molar ratio of 3:1 between ethylene oxide and C14 alcohol was reacted to form ethoxylate alcohol, the temperature was reduced to 90 °C and the product was separated under vacuum for 3 hours.
[0328] The narrow-band ethoxylation procedure was repeated using (CnH23COO)2Ba described in Ind. Eng. Chem. Res. 1992, 31, 2419-2421. A methanesulfonic acid catalyst described in document US10099964 and a barium oxide / sulfuric acid catalyst as described in document WO2012028435 (Kolb).
[0329] The distribution of ethoxylates for the methanesulfonic acid catalyst was measured and compared with a comparable wide-range material made with KOH as the catalyst.
[0330] Narrowband material has a smaller fraction of AE-0 material and AE-1, where AE-0 is non-ethoxylated alcohol (zero ethoxylate groups) and AE-1 is an ethoxylate alcohol with 1 ethoxylate group.
[0331] The resulting materials were sulfated using SO3 in a falling film reactor to produce the Na salt of ether sulfate. Example 2
[0332] A liquid laundry detergent was created containing a C12 / 14 ether sulfate. The C12 / 14 ether sulfate had a 3:1 molar ratio of C12O14 alkyl chains. The C12 / 14 ether sulfate was ethoxylated using a standard ethoxylation catalyst (SLES) or with a narrow-band ethoxylation catalyst (NRES), and both samples were present as a Na salt. Petition 870250092227, dated 09 / 10 / 2025, page 63 / 141 59 / 63 0.65% of a perfume was added to the formulation, and the sample was mixed to ensure complete separation. To evaluate the level of perfume in the headspace during storage at elevated temperatures, the samples were equilibrated at 40 °C for 15 minutes. The level of perfume in the headspace was then measured using GCMS. The difference in perfume intensity between the NRES sample and the SLES sample was calculated as NRES / SLES. The experiment was repeated three times, and the average NRES / SLES value is shown in Table 2 below along with the 95% confidence limits.
[0333] Surprisingly, for a range of perfume components listed as being of the invention, the level of perfume in the headspace was lower for the NRES sample. This is indicated by an NRES / SLES value less than 1. More surprisingly, β-ionone, benzene, (1-cyclohexylethyl), MNA aldehyde, cyclamen aldehyde, hexyl salicylate, and Tonalide show the lowest NRES / SLES values (the highest stabilization). Even more surprisingly, Tonalide, with an NRES / SLES value of 0.537, demonstrated the highest stabilization.
[0334] Table 2: Result of the average NRED / SLES value according to the formulation. NRES / SLES Perfume Component 95% Confidence Comparison Geraniol of formula XV: CH3 CH3 (XV) 1.151 0.180 Limonene of formula XVI: 0.827 0.030 Petition 870250092227, dated 09 / 10 / 2025, p. 64 / 141 60 / 63 2 (xvi) Dihydromyrcenol of formula XVII: CH3 CH3 <>ch2 ch3 (XVII) 0.868 0.019 β-ionone of formula XVIII: y (XVIII) 0.805 0.064 MNA aldehyde of formula XIX: 0 y (xix) 0.788 0.005 Cyclamen aldehyde of formula XX: 0 HaC·, CH3 ch3 y (XX) 0.784 0.044 Hexyl salicylate of formula XXI: 0.721 0.272 Petition 870250092227, dated 09 / 10 / 2025, p. 65 / 141 61 / 63 (octahydrotetramethylacetophenone (OTNE)) of formula XXIII:
[0336] MNA aldehyde is part of the group of linear and branched Cs to C12 aldehyde perfumes. EXAMPLE 3
[0337] Typical formulations include the components in Table 3:
[0338] Table 3: Formulation components. Ingredient wt% AB c DEFGH Linear alkylbenzene sulfonate C11.8 17 13 1.5 4.0 4 2 0 0 Alkylethoxy sulfate C12-14 (3) 1 8 10 5.5 2.0 3 0 8 0 Oleyl ether sulfate (6EO) 0 0 0 0 0 4 0 4 Alkyl-7 ethoxylate C12-142 5 10 1.0 9 5 Methyleyl ester ethoxylate (10EO) 3 4 8 Dimethylamine oxide C12-14 1 0.5 0.5 0.5 0.5 0 1 1 Petition 870250092227, dated 09 / 10 / 2025, page 66 / 141 62 / 63 C12-18 fatty acid 2 1.5 0.0 1 0.5 0 1 0 Ethoxylated polyethyleneimine (Sokalan HP20) 0 1.5 0.5 0 1 0 0 0 Ethoxylated sulfated hexamethylenediamine quaternized 1 0 0 0.5 1 1.5 1 1 PEG / vinyl acetate copolymer with MW of 6000 1 1.5 0.5 0.5 0.5 0.5 1 1 PEG-2 stearate 1 0 0 0 0 0 1 1 PEG / PPG-10 / 2 propyleptyl ether 3 1 0 1 0 0 1 1 Hydrogenated castor oil 0.1 0.1 0.2 0.1 0 0.2 0.2 0.2 Propylene glycol 3 2 0 0 0 2 0 0 Glycerol 1 1 0 1 1 1 0 0 Blue dye (anthraquinone ethoxylate) 0.002 0.001 0.001 0.001 0.001 0.002 0 0 Polyester agent for dirt release 0.5 0 0.5 1 1 1 0.5 0.5 Sequestrant (citric acid / Dequest 2066) 2 1 1 1 1 2 1 1 Protease - Purafect® (85 mg active / g) 0.3 0.2 0.1 0.2 0.3 0.3 0.3 0.3 Esterase - Lipex® (20 mg active / g) 0.1 0.15 0.1 0.1 Cellulase - Celluclean® (16 mg active / g) 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 Amylase - Stainzyme® 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 Mannase - 0.1 0.05 0.05 0.05 0.05 0.05 0.05 0.05 Petition 870250092227, dated 09 / 10 / 2025, page 67 / 141 63 / 63 Mannaway® (4 mg active ingredient / g) Fluorescence agent (Tinopal CBS-X) 0 0.1 0.2 0.1 0.1 0.1 0.1 0.1 Ethanol 0.5 0.2 0.5 1 0 1 1 1 Base (monoethanolamine or triethanolamine / NaOH) Up to pH 7.5 Perfume 0.6 0.6 0.5 0.4 0.8 0.5 0.4 0.4 Water and secondary components Remainder 1·2Also made with versions C12-18.
[0339] C12-14 alkylethoxy sulfate (3) is a narrowband AES as described herein.
[0340] The perfume comprises fragrance components selected from limonene, tonalide, octahydrotetramethylacetophenone (OTNE), cyclamen aldehyde, Ca to C12 linear and branched aldehyde, β-ionone, dihydromyrcenol, hexyl salicylate, and mixtures thereof. Petition 870250092227, dated 09 / 10 / 2025, page 68 / 141
Claims
1 / 2 Claims 1. Detergent composition, characterized by comprising fragrance and an alcoholic ether sulfate, wherein the alcoholic ether sulfate comprises C12 and C14 alkyl chains and has a molar average of 2.0 to 4.0 ethoxylate units, wherein said alcoholic ether sulfate contains less than 10% by weight of alcoholic ether sulfate with zero ethoxylate groups and wherein the fragrance comprises a fragrance component selected from limonene, tonalide, octahydrotetramethylacetophenone (OTNE), cyclamen aldehyde, C8 to C12 linear and branched aldehyde, β-ionone, dihydromyrcenol, hexyl salicylate, and mixtures thereof.
2. Composition according to claim 1, characterized in that it is a liquid detergent composition.
3. Composition, according to claim 1 or 2, characterized in comprising at least 60% by weight of water in the composition.
4. Composition, according to claim 1, characterized by being a unit dose liquid composition for washing clothes.
5. Composition, according to any of the preceding claims, characterized by the ratio of Ci2:14 being from 3:1 to 1:
20.
6. Composition, according to any of the preceding claims, characterized by the ratio of Ci2:14 being from 3:1 to 5:
4.
7. Composition, according to any of the preceding claims, characterized in that alcoholic ether sulfate is present from 1 to 30% by weight of the composition.
8. Composition, according to any of the preceding claims, characterized by comprising salt.
9. Composition according to claim 8, characterized in that the salt is selected from sodium chloride, potassium chloride and mixtures thereof.
10. Composition, according to claim 8 or 9, characterized in that the salt is present from 0.1 to 5% by weight of the composition.
11. Composition, according to any of the preceding claims, Petition 870250092227, dated 09 / 10 / 2025, p. 69 / 141 2 / 2 characterized by the alkoxylated polyamine being selected from propoxy and ethoxy, with ethoxy being the most preferred.
12. Composition, according to any of the preceding claims, characterized by having a pH of 5 to 10, more preferably 6 to 8, with a maximum preference of 6.1 to 7.
0. Petition 870250092227, dated 09 / 10 / 2025, p. 70 / 141