Liquid detergent composition

Abstract

The liquid detergent composition comprises a first surfactant which is a mixture of surfactant isomers of Formula 1 and a surfactant of Formula 2, wherein about 50% to about 100% by weight of the first surfactant is an isomer having m+n=11, about 25% to about 50% of the mixture of surfactant isomers of Formula 1 having n=0, and about 0.001% to about 25% by weight of the first surfactant is a surfactant of Formula 2, where X is a hydrophilic moiety; and a C 12 ~C 15 and a second surfactant comprising an alkyl ethoxy sulfate. [Formula 1] TIFF2024544939000021.tif39150

Description

[Technical Field]

[0001] A liquid detergent composition comprising a first surfactant and a second surfactant, wherein the first surfactant is a branched alkyl sulfate and the second surfactant is a C 12 ~C 16 A liquid detergent composition, wherein the alkyl ethoxy sulfate is an alkyl ethoxy sulfate. [Background technology]

[0002] Liquid detergent compositions are commonly used to clean substrates such as fabrics.The formulation of liquid detergent compositions is, among other things, a balance between the ability to sufficiently clean target substrates without damaging the substrates that are cleaned.Therefore, it is beneficial to find and utilize the effective cleaning surfactant that can be used at a level that does not potentially damage target substrates.Therefore, there is a need for the cleaning surfactant that is effective and can be used at a level that is preferably harmless to target substrates. Summary of the Invention [Means for solving the problem]

[0003] Provided herein, for example, is a liquid detergent composition comprising: a) from about 1% to about 30%, by weight of the composition, a first surfactant consisting essentially of a mixture of surfactant isomers of Formula 1 and a surfactant of Formula 2,

[0004] [ka] and b) about 1% to about 30% by weight of a first surfactant having an average degree of ethoxylation of about 1.5 to about 3. 12 ~C 16A liquid detergent composition is included that includes a second surfactant that includes an alkyl ethoxy sulfate, and c) a detergent adjuvant.

[0005] Also provided herein is, for example, a liquid detergent composition comprising: a) a first surfactant consisting essentially of a mixture of surfactant isomers of Formula 1 and a surfactant of Formula 2,

[0006] [ka] and b) a first surfactant, wherein about 50% to about 100% by weight of the first surfactant is an isomer having m+n=11, and about 25% to about 50% of the surfactant isomer of Formula 1 of the mixture has n=0, and about 0.001% to about 25% by weight of the first surfactant is a surfactant of Formula 2, where X is a hydrophilic moiety; and c) a first surfactant, wherein about 50% to about 100% by weight of the first surfactant is an isomer having m+n=11, and about 25% to about 50% of the surfactant isomer of Formula 1 of the mixture has n=0, and about 0.001% to about 25% by weight of the first surfactant is a surfactant of Formula 2, where X is a hydrophilic moiety; 12 ~C 15 and a second surfactant comprising an alkyl ethoxy sulfate, wherein the weight ratio of the first surfactant to the second surfactant is from about 15:1 to about 1:5.

[0007] These and other embodiments will be described more fully throughout this specification. DETAILED DESCRIPTION OF THE INVENTION

[0008] For liquid detergent compositions, the ultimate goal is to effectively clean target substrates such as fabrics.Cleansing efficiency leads to lower cost products and more sustainable products.Surfactants have generally been used as cleaning tools for a long time, but not all surfactants are efficient cleaners, and many are good at cleaning one type of soil but not another.In addition, the general idea is that the more surfactants, the better cleaning.However, there is a limit to how much surfactant can be contained in a given product due to cost, formulation incompatibility and processing concerns.

[0009] The inventors investigated whether it was possible to find a synergy between certain surfactants that could help reduce the total amount of surfactant needed to clean a substrate, or result in better cleaning of the substrate, or both. The two surfactants investigated were anionic alkyl ethoxy sulfate (C with an average ethoxylation level of 2.5) and hydroxypropyl methyl acrylate (C). 12~15 alkyl moiety), and anionic surfactants containing branched alkyl sulfates (a mixture of surfactant isomers of Formula 1 and surfactants of Formula 2:

[0010] [ka] About 50% to about 100% by weight of the first surfactant was the isomer having m+n=11, about 25% to about 50% of the mixture had the surfactant isomer of Formula 1 having n=0, and about 0.001% to about 25% by weight of the first surfactant was the surfactant of Formula 2, where X is a hydrophilic moiety.

[0011] To investigate whether synergy exists between these materials, a liquid detergent composition is prepared (Comparative Composition A). This composition is a liquid detergent chassis containing neither alkyl ethoxy sulfate nor branched alkyl sulfate. Comparative Compositions B, D, and F are also prepared, which are liquid detergent chassis containing added alkyl ethoxy sulfate, and Comparative Compositions C, E, and G are liquid detergent chassis containing added branched alkyl sulfate. Inventive Compositions 1-3 are prepared with both alkyl ethoxy sulfate and branched alkyl sulfate. Formulations for Comparative Compositions A-G and Inventive Compositions 1-3 are provided in the Examples section below.

[0012] The cleaning efficiency of each of the comparative compositions A-G is tested. To do this, technical stain swatches of CW120 cotton are obtained. These stain swatches include identified sebum (PCS132), ASTM dust sebum (PCS94), American Lipton black tea (GSRTLIT001), Covergirl cosmetics (GSRTCGM001), cooked beef (GSRTCB001), dyed bacon grease (GSRTBGD001), and grass (GSRTGR001), all purchased from Accurate Product Development (Fairfield, OH). The stain swatches are run through a simulated wash cycle in a Tergotometer along with one of the comparative compositions A-G and compositions 1-3 of the present invention. The method for this is listed below in the method section referred to as the Stain Removal Index Method.

[0013] When looking for synergy, one is looking for a greater than additive effect. Thus, one looks at the effect of each of the given materials individually, the expected effect of using them together, and the actual effect of using them together. Cleaning efficiency is assessed using the Stain Removal Index, calculated as follows:

[0014]

number

[0015] Additionally, to take into account the chassis (Comparative Composition A) and any benefits seen from the chassis, the values ​​in Tables 1-3 are Delta SRI, which is calculated by subtracting the SRI of the chassis from the SRI of the composition in question.

[0016] As can be seen in Table 1 below, the actual stain removal index for Inventive Composition 1 (having 2.11 wt.% each of alkyl ethoxy sulfate and branched alkyl sulfate) was 1.2 Delta SRI units higher than the expected result for differential sebum stains. Similar results were observed for dust sebum and black tea stains, which had Delta SRI values ​​1.1 and 0.7 higher than expected, respectively. This demonstrates a synergistic effect between alkyl ethoxy sulfate and branched alkyl sulfate on stain removal, particularly for differential sebum, dust sebum, and black tea stains.

[0017] [Table 1]

[0018] To determine whether synergy exists at different surfactant concentrations, additional testing is completed at different levels of total surfactant. As seen in Tables 2 and 3 below, synergy also exists at levels of 4.23 (Table 2) and 8.26 (Table 3) weight percent of the alkyl ethoxy sulfate and branched alkyl sulfate compositions, respectively. For Inventive Composition 2, synergistic cleaning effects are observed with stains containing cosmetics, dust sebum, sensitive sebum, cooked beef, bacon grease, grass, and black tea. For Inventive Composition 3, synergy is observed with stains containing, for example, cooked beef and bacon grease.

[0019] [Table 2]

[0020] [Table 3]

[0021] Given the synergy observed between alkyl ethoxy sulfates and branched alkyl sulfates, it is believed that liquid detergent formulations can be formulated that have less total surfactant but may have similar or better cleaning performance than liquid detergents with higher levels of total surfactant that utilize different types of surfactants. This can provide additional formulation flexibility, cost savings, and provide opportunities for more sustainable formulations.

[0022] Liquid detergent composition The liquid detergent composition may include a first surfactant comprising a branched alkyl sulfate and a second surfactant comprising an alkyl ethoxy sulfate. The liquid detergent composition may comprise from about 5% to about 60% total surfactant by weight. The liquid detergent composition may comprise from about 5%, 6%, 7%, 8%, 9%, or 10% to about 8%, 9%, 10%, 12%, 14%, 16%, 18%, 20%, 22%, 24%, 26%, 28%, 30%, 32%, 34%, 36%, 38%, 40%, 45%, 50%, or any combination thereof, by weight of the composition. The weight ratio of the first surfactant to the second surfactant can be from about 10:1 to about 1:2, from about 7:1 to about 1:2, from about 5:1 to about 1:2, from about 3:1 to about 1:2, from about 2:1 to about 1:2, or about 1:1. The liquid detergent composition can also include from about 1% to about 95% of a carrier, such as water. The liquid detergent composition can be a laundry detergent composition. A liquid "laundry detergent composition" includes any composition capable of cleaning fabrics in a washing machine or hand-washing situation. Liquid laundry detergent compositions can be used in high-efficiency and standard washing machines, as well as hand-washing in, for example, a tub or basin.

[0023] The liquid detergent composition may have a stain removal index (as calculated above) higher than the combined stain removal index of a first reference composition containing a first surfactant and a second reference composition containing a second surfactant. The first reference composition does not contain the second surfactant, and the second reference composition does not contain the first surfactant. An example of a chassis that can be used to prepare the first and second reference compositions is Comparative Example A. In addition, the liquid detergent composition may have an actual stain removal index that is 0.5 units or more higher than its predicted stain removal index. The actual stain removal index and the predicted stain removal index can be calculated as described above. The stain removal index can be measured, for example, on a cotton swatch. Stains used in estimating the stain removal index may include cosmetics, dust sebum, sensitive sebum, cooked beef, bacon grease, grass, or American black tea.

[0024] Branched Alkyl Sulfate The liquid detergent composition may comprise from about 1% to about 30% by weight of the composition of a first surfactant comprising a branched alkyl sulfate. The liquid detergent composition may also comprise from about 1%, 2%, 3%, 4%, 5%, 6%, 7%, 8%, 9%, or 10% to about 5%, 6%, 7%, 8%, 9%, 10%, 12%, 14%, 16%, 18%, 20%, 22%, 24%, 26%, 28%, or any combination thereof, by weight of the composition of the branched alkyl sulfate. The branched alkyl sulfate may comprise a 2-alkyl branched alkyl alcohol. The 2-alkyl branched alcohol is a positional isomer, varying in the position of the hydroxymethyl group (consisting of a methylene bridge (-CH2- unit) attached to a hydroxy (-OH) group) on the carbon chain. Therefore, 2-alkyl branched alkyl alcohols generally consist of a mixture of positional isomers. Furthermore, it is well known that aliphatic alcohols and surfactants, such as 2-alkyl branched alcohols, are characterized by chain length distribution. In other words, aliphatic alcohols and surfactants generally consist of a blend of molecules with different alkyl chain lengths (although it is possible to obtain fragments of a single chain length). In particular, the 2-alkyl primary alcohols described herein, which may have a specific alkyl chain length distribution and / or a specific proportion of a specific positional isomer, cannot be obtained by simply blending commercially available materials. Specifically, a distribution of about 50% by weight to about 100% by weight of surfactants having m+n=11 cannot be achieved by blending commercially available materials.

[0025] The liquid detergent composition may comprise a first surfactant, the first surfactant consisting essentially of a mixture of surfactant isomers of Formula 1 and a surfactant of Formula 2,

[0026] [ka] About 50% to about 100% by weight of the first surfactant is the isomer having m+n=11, about 25% to about 50% of the mixture of surfactant isomers of Formula 1 have n=0, and about 0.001% to about 25% by weight of the first surfactant is surfactant of Formula 2, where X is a hydrophilic moiety.

[0027] X can be neutralized with, for example, sodium hydroxide, potassium hydroxide, magnesium hydroxide, lithium hydroxide, calcium hydroxide, ammonium hydroxide, monoethanolamine, diethanolamine, triethanolamine, monoisopropanolamine, diamines, polyamines, primary amines, secondary amines, tertiary amines, amine-containing surfactants, or combinations thereof.

[0028] X is sulfate, alkoxylated alkyl sulfate, sulfonate, amine oxide, polyalkoxylate, polyhydroxy moiety, phosphate ester, glycerol sulfonate, polygluconate, polyphosphate ester, phosphonate, sulfosuccinate, sulfosuccinate, polyalkoxylated carboxylate, glucamide, taurinate, sarcosinate, glycinate, isethionate, dialkanolamide, monoalkanolamide, monoalkanolamide sulfate, diglycolamide, diglycolamide sulfate, glycerol ester, glycerol The sulfonated alkyl esters may be selected from the group consisting of glycerol ester sulfates, glycerol ethers, glycerol ether sulfates, polyglycerol ethers, polyglycerol ether sulfates, sorbitan esters, polyalkoxylated sorbitan esters, ammonioalkanesulfonates, amidopropyl betaines, alkylated quaternary ammonium compounds, alkylated / polyhydroxyalkylated quaternary ammonium compounds, alkylated / polyhydroxylated oxypropyl quaternary ammonium compounds, imidazolines, 2-yl-succinates, sulfonated alkyl esters, sulfonated fatty acids, and mixtures thereof.

[0029] The first surfactant may comprise from about 15% to about 40% of the mixture, such as from about 20% to about 40%, such as from about 25% to about 35%, or such as from about 30% to about 40%, of the surfactant isomer of Formula 1 having n=1. The first surfactant may comprise from about 60% to about 90% of the mixture, such as from about 65% to about 85%, such as from about 70% to about 90%, or such as from about 80% to about 90%, of the surfactant isomer of Formula 1 having n<3. The detergent composition may comprise from about 90% to about 100%, such as from about 95% to 100%, of the first surfactant whose isomer has m+n=11.

[0030] The first surfactant may have about 15% to about 40% by weight of the first surfactant mixture of isomers of Formula 1 where n=1, and about 5% to about 20% by weight of the first surfactant mixture of isomers of Formula 1 where n=2. The first surfactant may have no isomers of Formula 1 where n is 6 or greater. The first surfactant may have up to about 40% of the mixture of surfactant isomers of Formula 1 where n>2. The first surfactant may have up to about 25% of the mixture of surfactant isomers of Formula 1 where n>2. The first surfactant may have up to about 20% by weight of the isomer of Formula 2.

[0031] impurities The process for making the above 2-alkyl primary alcohol derived surfactants can produce various impurities and / or contaminants at different steps in the process.

[0032] The starting C15 aldehydes and C13 aldehydes, as well as the C14 olefin and C12 olefin sources used in hydroformylation to produce the subsequent alcohols and corresponding surfactants used in the present invention, can have low levels of impurities that lead to impurities in the starting C15 alcohols and C13 alcohols, and therefore also to impurities in the C15 alkyl sulfates and C13 alkyl sulfates. Without being bound by theory, such impurities present in the C14 olefin and C12 olefin feedstocks can include vinylidene olefins, branched olefins, paraffins, aromatic components, and low levels of olefins with chain lengths other than the intended 14 or 12 carbons. Branched and vinylidene olefins are typically 5% or less in the C14 and C12 alpha-olefin sources. The resulting impurities in the C15 alcohols and C13 alcohols may include low levels, typically less than 5% by weight of the mixture, preferably less than 1%, of linear and branched alcohols ranging from C10 to C17 alcohols, particularly C11 and C15 alcohols in C13 alcohols, and particularly C13 and C17 alcohols in C15 alcohols; low levels of branching at positions other than the 2-alkyl position resulting from branched and vinylidene olefins, typically less than about 5% by weight of the alcohol mixture, preferably less than 2% by weight; paraffins and olefins, typically less than 1% by weight of the alcohol mixture, preferably less than about 0.5%; and low levels of aldehydes, typically having a carbonyl number less than 500 mg / kg, preferably less than about 200 mg / kg. These impurities in the alcohol can result in low levels of paraffins, linear and branched alkyl sulfates having total carbon numbers other than C15 or C13, and alkyl sulfates having branches at positions other than the 2-alkyl position, where the branches can vary in length but are typically linear alkyl chains having 1 to 6 carbons. The hydroformylation process can also produce impurities such as linear and branched paraffins, residual olefins from incomplete hydroformylation, and esters, formates, and heavy ends (dimers, trimers).Impurities that are not reduced to alcohol in the hydrogenation step can be removed during final purification of the alcohol by distillation.

[0033] It is also well known that the process of sulfating fatty alcohols to obtain alkyl sulfate surfactants also produces various impurities. The exact nature of these impurities depends on the conditions of sulfation and neutralization. However, generally, the impurities in the sulfation process include one or more inorganic salts, unreacted fatty alcohol, and olefins ("The Effect of Reaction By-Products on the Viscosities of Sodium Lauryl Sulfate Solutions," Journal of the American Oil Chemists' Society, Vol. 55, No. 12, pp. 909-913 (1978), C.F. Pustnik and S.E. McGuire).

[0034] Alkoxylated impurities may include dialkyl ethers, polyalkylene glycol dialkyl ethers, olefins, and polyalkylene glycols. Impurities may also include catalysts or components of catalysts used in various processes.

[0035] Alkyl ethoxy sulfate The liquid detergent composition may comprise from about 1% to about 30% by weight of the second surfactant composition, alkyl ethoxy sulfate (AES). The liquid detergent composition may also comprise from about 1%, 2%, 3%, 4%, 5%, 6%, 7%, 8%, 9%, or 10% to about 5%, 6%, 7%, 8%, 9%, 10%, 12%, 14%, 16%, 18%, 20%, 22%, 24%, 26%, 28%, or any combination thereof, alkyl ethoxy sulfate. The AES surfactant comprises multiple AES compounds, each of which comprises an alkyl chain. The alkyl chain of a particular AES compound can be characterized by the total number of carbon atoms in the alkyl portion, otherwise known as the alkyl chain length. A given amount of AES surfactant may contain various AES compounds having chain lengths within a certain ratio or distribution. Thus, the AES of a given amount or sample can be characterized by the distribution of AES compounds having a certain chain length and / or weight average number of carbon atoms in the alkyl moiety.

[0036] Commercially available AES surfactants include those with a weight average chain length of 12 to 15, known as C12-15 AES, or those with a chain length of 12 to 14, known as C12-14 AES. While these are described as having a specific range of weight average chain lengths, materials within these ranges may have carbon chain lengths outside the specified ranges. As long as the weight average chain length of the AES material falls within the defined range, the material may have some carbon chain lengths other than those specified.

[0037] Another AES surfactant suitable for use herein may contain a relatively high proportion of an AES compound having 15 carbon atoms in the alkyl chain ("C15 AES"). C15 AES may be desirable because the relatively long alkyl chain increases the hydrophobicity of the AES surfactant, which may result in improved soil removal, such as greasy soil removal. The AES surfactant may contain from about 40% by weight, or about 45% by weight, to about 70% by weight, or about 60% by weight of the C15 AES. The C15 AES may constitute a major portion of the AES surfactant, meaning that there is more C15 AES surfactant by weight than any other single type of AES surfactant. The C15 AES may constitute at least half, or even a majority, of the weight of the AES surfactant.

[0038] The AES surfactant may comprise an AES compound having 14 carbon atoms in the alkyl chain ("C14 AES"), for example, at least about 1% C14 AES by weight of the AES surfactant. The AES surfactant may comprise a relatively limited amount of C14 AES. For example, the AES surfactant may contain about 30% or less, or about 25% or less, or about 20% or less, or about 15% or less, or about 10% or less C14 AES by weight of the AES surfactant. When a composition or surfactant system comprises a relatively high proportion of C15 AES, it may be desirable to limit the amount of C14 AES, for example, for stability reasons.

[0039] The AES surfactant may include an AES compound having 13 carbon atoms in the alkyl chain ("C13 AES"). A C13 AES may be desirable because a relatively short alkyl chain reduces the relative hydrophobicity of the AES surfactant, thereby enabling the AES surfactant to remove various soils and / or be relatively more physically stable than more hydrophobic AES surfactants. The AES surfactant may comprise about 15%, about 20%, about 25%, up to about 50%, about 40%, or about 35% by weight of the AES surfactant, preferably about 15% to about 35% C13 AES. The C13 AES may be present as the most or second most abundant AES compound in the AES surfactant; for example, the AES surfactant may comprise mostly C15 AES and C13 AES, each of which has a relatively high concentration compared to AES of other chain lengths.

[0040] The AES surfactant may include an AES compound having 12 carbon atoms in the alkyl chain ("C12 AES"). The AES surfactant may contain at least about 1 wt. %, or at least about 3 wt. %, or at least about 5 wt. %, or at least about 10 wt. % C12 AES. The AES surfactant may contain about 20 wt. % or less, or about 15 wt. % or less, or about 12 wt. % or less, or about 10 wt. % or less, or about 5 wt. % or less C12 AES. The AES surfactant may contain about 1 wt. % or about 3 wt. % to about 20 wt. % or about 15 wt. % C12 AES, preferably about 3 wt. % to about 15 wt. % C12 AES. The C12 AES may be desirable, for example, to offset the hydrophobicity of the C15 AES, resulting in a broader cleaning profile and / or a better stability profile.

[0041] The AES surfactant may include at least 1% by weight of each of a C12 AES, a C13 AES, and a C14 AES surfactant, in addition to the amount of C15 surfactant described above. The AES surfactant of the present disclosure may include about 30% to about 60% by weight of the AES surfactant of a C12 AES, a C13 AES, a C14 AES, or a mixture thereof, preferably a mixture thereof.

[0042] The AES surfactant may comprise about 1% to about 20% by weight of C12 AES, about 25% to about 50% by weight of C13 AES, about 1% to about 10% by weight of C14 AES, and about 45% to about 60% by weight of C15 AES (each weight percent by weight of the AES surfactant), and may be characterized by alkyl chain lengths having an average molecular weight of about 205 to about 220, preferably about 208 to about 218, although the weight percents provided may total about 95% to about 100% by weight.

[0043] The AES surfactant may include an AES compound having 16 carbon atoms in the alkyl chain ("C16 AES"). For example, the amount of C16 present may be limited because longer chain lengths can cause phase instability. The AES surfactant of the present disclosure may include from about 0.1% to less than about 5%, or less than about 3%, or less than about 1.5%, or less than 1% C16 AES by weight of the AES surfactant.

[0044] AES surfactants can be characterized by the weight average molecular weight of the chain length of the AES compounds in the distribution. AES surfactants may be characterized by lower weight average molecular weight chain lengths than would be expected given the relatively high proportion of C15 AES as a whole.

[0045] The weight-average molecular weight of a chain length can be determined by determining the weight-average molecular weight of a fatty alcohol consisting of an alkyl chain and a hydroxyl group. Calculating the molecular weight of a chain length in this manner can offer several advantages. For example, AES surfactants are typically synthesized from such fatty alcohols, which serve as raw materials before being alkoxylated (e.g., ethoxylated) and sulfated to arrive at the final AES compound. Therefore, relevant information regarding the fatty alcohol raw materials is typically available from the raw material supplier and / or the AES manufacturer. Additionally, reporting the molecular weight based on the fatty alcohol containing the alkyl chain, rather than the molecular weight of the AES surfactant itself, helps eliminate uncertainties arising from variable alkoxylation. For example, a C15 AES material may contain some molecules containing one mole of ethoxylation and other molecules containing two and / or three moles of ethoxylation.

[0046] For example, the molecular weight of the alkyl chain of a C15 AES compound has the following empirical formula: 15 H 31 The molecular weights of some exemplary fatty alcohols are based on C15 fatty alcohols that may have OH groups. Such C15 fatty alcohols have a molecular weight of about 228 Daltons. For convenience, Table 4 shows the molecular weights of some exemplary fatty alcohols.

[0047] [Table 4]

[0048] AES surfactants can be characterized by chain lengths having a weight average molecular weight of about 200, or about 205, or about 208, or about 210, or about 211, or about 214 to about 220, or about 218, or about 215 Daltons, where the molecular weight of the particular alkyl chain is based on the molecular weight of the aliphatic alcohol containing the alkyl chain (i.e., the aliphatic alcohol consisting of an alkyl chain and a hydroxyl group). AES surfactants can be characterized by chain lengths having a weight average molecular weight of about 200 to about 220, or about 210 to about 220, or about 211 to about 220, or about 211 to about 218 Daltons. AES surfactants can be characterized by chain lengths having a weight average molecular weight of about 208 to 215 Daltons or less. AES characterized by a chain length with a relatively low weight average molecular weight (e.g., 208-215 Daltons) may be particularly preferred in detergent compositions having a relatively high amount of surfactant (e.g., greater than 20% by weight) because they promote improved physical stability.

[0049] AES surfactants can also be characterized by their degree of ethoxylation. In a population of AES compounds, AES molecules can have varying degrees of ethoxylation. Thus, a given amount or sample of AES can also be characterized by a weight-average degree of ethoxylation, reported as the number of moles of ethoxy groups (—O—CH—CH) per mole of AES. The AES surfactants of the present disclosure can be characterized by a weight-average degree of ethoxylation of about 0.5 to about 5, or about 1 to about 3, or about 1.5 to about 3.0, or about 1.5 to about 2.5.

[0050] AES may contain at least some non-ethoxylated alkyl sulfate ("AS") surfactant. Non-ethoxylated AS may be present as a result of incomplete reaction during the ethoxylation process and / or because it was added as a separate component. For purposes of this disclosure, (non-ethoxylated) AS is considered to be part of the AES surfactant when determining concentration, chain length molecular weight, and / or degree of ethoxylation.

[0051] The AES surfactant may include an AES compound having a linear alkyl chain, an AES compound having a branched alkyl chain, or a mixture thereof. The AES surfactant may include an AES surfactant branched at the C2 position, where C2 is the second carbon away from the ethoxy sulfate head group (i.e., the carbon adjacent to the ethoxy sulfate head group is at the C1 position). The AES surfactant may include about 10% to about 30% by weight of the AES surfactant branched at the C2 position. The branched alkyl chain may improve and / or broaden the cleaning profile of the AES surfactant. Alternatively, a linear alkyl moiety of the AES compound may be preferred. At least about 50% by weight, or at least about 75% by weight, or at least about 90% by weight, or at least about 95% by weight, or about 100% by weight of the AES surfactant's AES compounds may have alkyl chains that are linear alkyl chains. The AES may comprise a mixture of C15 AES, wherein at least 60% by weight of the C15 AES are linear and at least 10% by weight of the C15 AES are branched, preferably at the C2 position. The AES may comprise a mixture of C13 AES, wherein at least 60% by weight of the C13 AES are linear and at least 10% by weight of the C13 AES are branched, preferably at the C2 position.

[0052] As described above, AES compounds are typically produced by sulfating ethoxylated fatty alcohols. The fatty alcohol may be first provided and then ethoxylated according to known methods. Therefore, the AES compound, or at least the alkyl chain of the AES compound, can be described in terms of the source from which it is derived, such as oil or fatty alcohol. The AES compounds of the present disclosure may include alkyl chains derived from non-petroleum sources, preferably natural sources. The AESs of the present disclosure may include mixtures of AESs containing naturally occurring alkyl chains and AESs containing alkyl chains of synthetically derived (e.g., petroleum-derived) AESs. Such mixtures may be useful, for example, to account for supply chain variability, disruptions, and / or price fluctuations, so that shortages of one type of AES can be backfilled by another type.

[0053] Natural sources can include oils derived from plants or animal sources, preferably plants. Representative, non-limiting examples of vegetable oils include canola oil, rapeseed oil, coconut oil, corn oil, cottonseed oil, olive oil, palm oil, peanut oil, safflower oil, sesame oil, soybean oil, sunflower oil, linseed oil, palm kernel oil, tung oil, jatropha oil, mustard oil, shepherd's purse oil, camellia oil, castor oil, or mixtures thereof. Suitable feedstocks can typically include metathesized oils formed from a metathesis reaction in the presence of a suitable metathesis catalyst. The alkyl moiety can be derived from coconut oil, palm kernel oil, or a mixture thereof, preferably coconut oil, palm kernel oil, or a mixture thereof. Such sources may be desirable for environmental and / or sustainability reasons, as they do not rely on fossil fuels. Furthermore, the alkyl chains of AES compounds derived from natural sources typically contain an even number of carbon atoms.

[0054] Other sources of alkyl chains (e.g., raw alcohols) can include commercially available alcohols, such as those sold by Shell (e.g., under the trade name Neodol™, e.g., Neodol™ 23, Neodol™ 3, Neodol™ 45, and / or Neodol™ 5), and / or those sold by Sasol (e.g., Lial™, Isalchem™, Safol™, etc.).

[0055] The AES does not have to be derived from a Fischer-Tropsch process. The AES of the present disclosure may be derived from the well-known Shell Modified Oxo process. The AES of the present disclosure may include AES derived from a Ziegler process.

[0056] The AES may be in an acid form, a salt form (e.g., neutralized), or a mixture thereof. The salt form of the AES may be an alkali metal salt, preferably a sodium salt, an ammonium salt, or an alkanolamine salt.

[0057] Additional surfactants The liquid detergent composition may further comprise an additional surfactant. The additional surfactant may be present at a level of about 0.25% to about 25% by weight of the liquid detergent composition. The additional surfactant may be anionic, nonionic, cationic, zwitterionic, amphoteric, or a combination thereof. For example, the additional surfactant may be a combination of a linear alkylbenzene sulfonate and a nonionic surfactant, or a combination of an anionic surfactant and a nonionic surfactant containing an ethoxylated alcohol. The additional surfactant may be selected from alkylbenzene sulfonates, ethoxylated alcohol nonionic surfactants, amine oxides, methyl ester sulfonates, glycolipid surfactants, alkyl polyglucoside surfactants, or combinations thereof. The additional surfactant may be selected from the group consisting of alkylbenzene sulfonates, ethoxylated alcohol nonionic surfactants, amine oxide surfactants, and mixtures thereof.

[0058] The additional surfactant may include an alkylbenzene sulfonate surfactant. The alkyl group may contain from about 9 to about 15 carbon atoms. Such linear alkylbenzene sulfonates are known as "LAS." The linear alkylbenzene sulfonates may have an average number of carbon atoms in the alkyl group of from about 10 to about 13, from about 11 to about 12, or from about 11.6 to about 12. A linear linear alkylbenzene sulfonate may have an average number of carbon atoms in the alkyl group of about 11.8 carbon atoms, sometimes abbreviated as C11.8 LAS. The alkylbenzene sulfonate may be present, at least in part, as a salt, such as an alkali metal salt, preferably a sodium salt, or an amine salt, e.g., an ethanolamine salt, such as the monoethanolamine salt.

[0059] Suitable alkylbenzene sulfonates (LAS) can be, and preferably are, obtained by sulfonating commercially available linear alkyl benzenes (LABs). Suitable LABs include low 2-phenyl LABs, such as those supplied by Sasol under the trade name Isochem® or Petresa under the trade name Petrelab®. Other suitable LABs include high 2-phenyl LABs, such as those supplied by Sasol under the trade name Hyblene®. Suitable anionic surfactants are alkylbenzene sulfonates obtained by the DETAL catalytic process, DETAL-PLUS catalytic process, although other synthetic routes may be suitable, such as HF and other alkylation catalysts, such as zeolites ZSM-4, ZSM-12, ZSM-20, ZSM-35, ZSM-48, ZSM-50, MCM-22, TMA offretite, TEA mordenite, clinoptilolite, mordenite, REY, and zeolite Beta. In one embodiment, a magnesium salt of LAS is used. Preferably, the HLAS surfactant can be selected from alkali metal salts or amine salts of alkylbenzenesulfonic acid, C10-16 alkylbenzenesulfonic acid, more preferably C10-C14 alkylbenzenesulfonic acid. The LAS surfactant can contain more than 50% C12, preferably more than 60%, preferably more than 70%, more preferably more than 75% C12. Preferably, the HLAS surfactant can be selected from alkylbenzenesulfonic acid, alkali metal salts of C10-16 alkylbenzenesulfonic acid, and the HLAS surfactant contains an even carbon to odd carbon ratio of 3:2 to 99:1.

[0060] The additional surfactant may include an alkyl sulfate, which may include sodium lauryl sulfate, ammonium lauryl sulfate, or a combination thereof.

[0061] The additional surfactant may include an amine oxide surfactant. Preferred amine oxides are alkyl dimethyl amine oxide or alkyl amidopropyl dimethyl amine oxide, more preferably alkyl dimethyl amine oxide, especially coco dimethyl amine oxide. The amine oxide may have a straight-chain or mid-chain branched alkyl moiety. Typical linear amine oxides include water-soluble amine oxides containing one R1 C8-18 alkyl moiety and two R2 and R3 moieties selected from the group consisting of C1-3 alkyl groups and C1-3 hydroxyalkyl groups. Preferably, the amine oxide is characterized by the formula R1-N(R2)(R3)O, where R1 is a C8-18 alkyl and R2 and R3 are selected from the group consisting of methyl, ethyl, propyl, isopropyl, 2-hydroxyethyl, 2-hydroxypropyl, and 3-hydroxypropyl. Linear amine oxide surfactants may include, in particular, linear C10-C18 alkyl dimethyl amine oxides and linear C8-C12 alkoxyethyl dihydroxyethyl amine oxides. Preferred amine oxides include linear C10, linear C10-C12, and linear C12-C14 alkyl dimethyl amine oxides. As used herein, "mid-chain branched" means that the amine oxide has one alkyl moiety with n1 carbon atoms, and one alkyl branch on the alkyl moiety has n2 carbon atoms. The alkyl branch is located on the alpha carbon from the nitrogen on the alkyl moiety. This type of branching of amine oxides is also known in the art as internal amine oxides. The compositions of the present disclosure may contain from about 0.1% to about 5%, or about 3%, or about 1% by weight of the composition of the amine oxide.

[0062] The additional surfactant may include a non-ionic surfactant. The non-ionic surfactant may be an ethoxylated alcohol. The non-ionic surfactant may have the formula R(OC2H4) nOH, where R is selected from the group consisting of aliphatic hydrocarbon radicals containing from about 8 to about 16 carbon atoms, and the average value of n is from about 5 to about 15. For example, the nonionic surfactant may be selected from ethoxylated alcohols having an average of from about 12 to 14 carbon atoms in the alcohol (alkyl portion) and an average degree of ethoxylation of from about 7 to 9 moles of ethylene oxide per mole of alcohol.

[0063] Additional non-limiting examples include compounds of the formula R(OC2H4) n ethoxylated alkylphenols of the formula: OH, where R comprises an alkylphenyl radical in which the alkyl group contains from about 8 to about 12 carbon atoms and n has an average value of from about 5 to about 15; C 2 alkylphenols such as NEODOL® nonionic surfactants from Shell; 12 ~C 18 Alkyl ethoxylate; C 14 ~C 22 Medium-chain branched alcohol; C 14 ~C 22 Medium-chain branched alkyl ethoxylate, BAE x (wherein x is 1 to 30). The nonionic ethoxylated alcohol surfactant herein may further contain residual alkoxylation catalyst, which can be considered a residue or impurity from the reaction. It may also contain various impurities or by-products of the alkoxylation reaction. The impurities may vary depending on the catalyst used and reaction conditions. Impurities include alkyl ethers, e.g., dialkyl ethers such as didodecyl ether, glycols, e.g., diethylene glycol, triethylene glycol, pentaethylene glycol, and other polyethylene glycols.

[0064] The nonionic ethoxylated alcohol may be a narrow range ethoxylated alcohol. The narrow range ethoxylated alcohol may have the following general formula (I):

[0065] [ka] (wherein R is a saturated or unsaturated, straight or branched chain C8-C 20 alkyl groups, and greater than 90% of n are 0≦n≦15. Additionally, the average value of n can be from about 6 to about 10, with less than about 10% by weight of the alcohol ethoxylates being ethoxylates with n<7, and 10% by weight to about 20% by weight of the alcohol ethoxylates being ethoxylates with n=8.

[0066] The composition may comprise an average value of n of about 10. The composition may have the following ranges for each of n: n=0 up to 5%, n=1, 2, 3, 4, and 5 up to 2%, n=6 up to 4%, n=7 up to 10%, n=8 12%-20%, n=9 15%-25%, n=10 15%-30%, n=11 10%-20%, n=12 up to 10%, and n>12 up to 10%. The composition may have 30%-70% n of 9-10. The composition may have n 8-11 for more than 50% of the composition.

[0067] The alcohol ethoxylates described herein are typically not single compounds as suggested by their general formula (I). Rather, the alcohol ethoxylates comprise a mixture of several homologs having various polyalkylene oxide chain lengths and molecular weights. Among the homologs, those having a number of total alkylene oxide units per mole of alcohol close to the most prevalent alkylene oxide adduct are desirable, while those having a number of total alkylene oxide units much less or much more than the most prevalent alkylene oxide adduct are less desirable. In other words, a "narrow range" or "peaked" alkoxylated alcohol composition is desirable. A "narrow range" or "peaked" alkoxylated alcohol composition refers to an alkoxylated alcohol composition having a narrow distribution of the number of moles of alkylene oxide adduct.

[0068] A "narrow range" or "peaked" alkoxylated alcohol composition may be desirable for selected applications. Homologues within a selected target distribution range may have the appropriate lipophilic-hydrophilic balance for a selected application. For example, for an ethoxylated alcohol product containing an average ratio of 5 ethylene oxide (EO) units per molecule, a homologue with the desired lipophilic-hydrophilic balance may range from 2EO to 9EO. Homologues with shorter EO chain lengths (<2EO) or longer EO chain lengths (>9EO) may be undesirable for applications for which surfactants with an α=5 EO / alcohol ratio are typically selected, as these longer and shorter homologues may be too lipophilic or too hydrophilic for the application in which the product is utilized. Therefore, it is advantageous to develop alkoxylated alcohols with a peaked distribution.

[0069] Narrow range alkoxylated alcohol compositions of the present disclosure may have an average degree of ethoxylation in the range of about 0 to about 15, such as about 4 to about 14, about 5 to 10, about 8 to 11, and about 6 to 9. Narrow range alkoxylated alcohol compositions of the present disclosure may have an average degree of ethoxylation of 10. Narrow range alkoxylated alcohol compositions of the present disclosure may have an average degree of ethoxylation of 9. Narrow range alkoxylated alcohol compositions of the present disclosure may have an average degree of ethoxylation of 5.

[0070] Non-limiting examples of cationic surfactants include quaternary ammonium surfactants, which may have 26 or fewer carbon atoms, including alkoxylate quaternary ammonium (AQA) surfactants, dimethylhydroxyethyl quaternary ammonium surfactants, dimethylhydroxyethyl lauryl ammonium chloride, polyamine cationic surfactants, cationic ester surfactants, and amino surfactants such as amidopropyldimethylamine (APA). The compositions of the present disclosure may be substantially free of cationic surfactants and / or surfactants that become cationic at a pH below 7 or below 6, as cationic surfactants may negatively interact with other ingredients, such as anionic surfactants.

[0071] Examples of zwitterionic surfactants include secondary and tertiary amine derivatives, heterocyclic secondary and tertiary amine derivatives, or derivatives of quaternary ammonium compounds, quaternary phosphonium compounds, or tertiary sulfonium compounds. Zwitterionic surfactants include betaines, including alkyl dimethyl betaines, cocodimethylamidopropyl betaine, and C8-C6 alkyl methyl ... 18 (For example, C 12 ~C 18 ) amine oxide, and N-alkyl-N,N-dimethylamino-1-propanesulfonate (the alkyl group is C8 to C 18 or C 10 ~C 14 The betaines may include sulfo and hydroxy betaines such as

[0072] Detergent Auxiliary Agents The liquid detergent composition may contain one or more adjunct ingredients, for example, at a level of about 0.1% to about 50%. Examples of adjunct ingredients include color care agents, organic solvents, aesthetic dyes, toning dyes, leuco dyes, opacifiers such as those sold under the Acusol trademark, brighteners including FWA49, FWA15, and FWA36, dye transfer inhibitors including PVNO, PVP, and PVPVI dye transfer inhibitors, builders including citric acid and fatty acids, chelating agents, enzymes, fragrance capsules, preservatives, sulfites such as potassium sulfite or potassium bisulfite, and antioxidants including those sold under the brand name Ralox, and Tinosan available from BASF. Antibacterial and antiviral agents including 4,4'-dichloro 2-hydroxydiphenyl ether such as HP100; anti-mite actives such as benzyl benzoate; structuring agents including hydrogenated castor oil; silicone-based antifoam materials; inorganic electrolytes such as sodium chloride, potassium chloride, magnesium chloride, and calcium chloride and related sodium, potassium, magnesium, and calcium sulfate salts, and organic electrolytes such as sodium, potassium, magnesium, and calcium salts of carbonates, bicarbonates, and carboxylates such as formates, citrates, and acetates; sodium hydroxide, hydrogen chloride, and pH adjusters including alkanolamines including monoethanolamine, diethanolamine, triethanolamine, and monoisopropanolamine; probiotics; sanitary agents, zinc ricinoleate, thymol, quaternary ammonium salts such as Bardac®, polyethyleneimine (such as Lupasol® manufactured by BASF) and its zinc complexes, silver and silver compounds, cationic biocides including octyldecyldimethylammonium chloride, dioctyldimethylammonium chloride, didecyldimethylammonium chloride, dispersants, cleaning polymers, glucans, or mixtures thereof. For example, detergent adjuvants include enzymes, enzyme stabilizers, builders, hueing agents, soil redeposition inhibitors, bleaching agents, or combinations thereof.

[0073] The organic solvent may include an alcohol and / or a polyol. For example, the organic solvent may include ethanol, propanol, isopropanol, a sugar alcohol, a glycol, a glycol ether, or a combination thereof. The organic solvent may include polyethylene glycol, particularly low molecular weight polyethylene glycols such as PEG200 and PEG400; diethylene glycol; glycerol; 1,2-propanediol; polypropylene glycols including dipropylene glycol and tripropylene glycol, and low molecular weight polypropylene glycols such as PPG400; or mixtures thereof. The chelating agent may include, for example, EDDS, HEDP, GLDA, DTPA, DTPMP, DETA, EDTA, MGDA, or mixtures thereof. The chelating agent may be biodegradable. Examples of biodegradable chelating agents include NTA, IDS, EDDG, EDDM, HIDS, HEIDA, HEDTA, DETA, or combinations thereof.

[0074] The enzymes can include, for example, proteases, amylases, cellulases, mannanases, lipases, xyloglucanases, pectate lyases, nuclease enzymes, or mixtures thereof.

[0075] Cleaning polymers can include, for example, those that can help clean stains or soils on clothing and / or help prevent these soils from redepositing on clothing during washing. Examples are optionally modified carboxymethylcellulose, modified polyglucans, poly(vinylpyrrolidone), poly(ethylene glycol), poly(vinyl alcohol), poly(vinylpyridine-N-oxide), poly(vinylimidazole), polycarboxylates such as polyacrylates, maleic acid / acrylic acid copolymers, and lauryl methacrylate / acrylic acid copolymers.

[0076] The composition may contain one or more amphiphilic cleaning polymers. Such polymers have balanced hydrophilic and hydrophobic properties to remove grease particles from fabrics and surfaces. Suitable amphiphilic alkoxylated grease cleaning polymers include a core structure having multiple alkoxylate groups attached to the core structure. These may include alkoxylated polyalkyleneimines, particularly ethoxylated polyethyleneimines, or polyethyleneimines having an inner polyethylene oxide block and an outer polypropylene oxide block. Typically, these may be incorporated into the compositions of the present invention in amounts of 0.005% to 10% by weight, generally 0.5% to 8% by weight.

[0077] water The detergent composition may also include water, which may be present at a level of from about 5% to about 95% by weight of the composition.

[0078] pH The detergent composition may have a pH of from about 5.0 to about 12, preferably from 6.0 to 10.0, more preferably from 8.0 to 10, the pH of the detergent composition being measured as a 10% dilution in demineralized water at 20°C.

[0079] viscosity The liquid detergent composition may be in the form of an aqueous solution or a homogeneous dispersion or suspension. Such a solution, dispersion, or suspension has acceptable phase stability. The liquid detergent composition has a viscosity of 1 to 1500 centipoise (1 to 1500 mPa) at 20 s-1 and 21°C. * s), more preferably 100 to 1000 centipoise (100 to 1000 mPa * s), most preferably 200 to 500 centipoise (200 to 500 mPa *The viscosity may be measured by conventional methods. Viscosity may be measured using a TA Instruments AR550 rheometer using a plate steel spindle with a diameter of 40 mm and a gap size of 500 μm. High shear viscosity at 20 s and low shear viscosity at 0.05 s can be obtained from a 3-minute log shear rate sweep of 0.1 s to 25 s at 21° C. The preferred rheologies described herein can be achieved by using internal structuring agents with the detergent ingredients or by using external rheology modifiers. More preferably, the laundry care compositions, e.g., liquid detergent compositions, have a high shear rate viscosity of about 100 centipoise to 1500 centipoise, more preferably 100 to 1000 cps.

[0080] Preparation of the composition Liquid compositions can be prepared by combining the components in any convenient order and mixing, for example, stirring, the resulting combination of components to form a phase-stable liquid laundry care composition. In the process for preparing such compositions, a liquid matrix can be formed containing at least most, or even substantially all, of the liquid components, such as nonionic surfactants, non-surface-active liquid carriers, and other optional liquid components, and the liquid components are thoroughly mixed by applying shear agitation to the liquid combination. For example, high-speed stirring using a mechanical stirrer can be usefully used. While maintaining shear agitation, any anionic surfactants and substantially all of the solid-state components can be added. Agitation of the mixture can be continued and, if necessary, increased at this point to form a solution or homogeneous dispersion of insoluble solid-phase particles within the liquid phase. After adding some or all of the solid-state materials to this agitated mixture, any enzyme material particles, such as enzyme prills, can be incorporated. As a variation of the above-described composition preparation procedure, one or more of the solid components may be added to the stirred mixture as a solution or slurry of particles premixed with a minor portion of one or more of the liquid components. After all of the composition components have been added, stirring of the mixture is continued for a time sufficient to form a composition having the required viscosity and phase stability characteristics. Often, this involves stirring for a period of about 30 to 60 minutes.

[0081] combination 1. A liquid detergent composition comprising: a) from about 1% to about 30%, preferably from about 1% to about 10%, by weight of the composition, of the formula 1 A mixture of surfactant isomers of formula 2 a first surfactant consisting essentially of a surfactant of

[0082] [ka] About 50% to about 100% by weight of the first surfactant is the isomer having m+n=11, and about 25% to about 50% of the mixture is the isomer of the formula 1wherein the surfactant isomer has n=0 and about 0.001% to about 25% by weight of the first surfactant is a surfactant isomer of the formula 2 wherein X is a hydrophilic moiety; b) about 1% to about 30%, preferably about 1% to about 10%, by weight of the composition of C having an average degree of ethoxylation of about 1.5 to about 3 12 ~C 16 a second surfactant comprising an alkyl ethoxy sulfate; c) a detergent adjuvant. 2. A liquid detergent composition according to 1, wherein the liquid detergent composition has a higher stain removal score relative to the combined scores of a first reference composition comprising the first surfactant and a second reference composition comprising the second surfactant. 3. The liquid detergent composition of 1 or 2, wherein the stain comprises cosmetics, dust sebum, discriminating sebum, cooked beef, bacon grease, grass, or American black tea. 4. A liquid detergent composition described in any one of 1 to 3, wherein the weight ratio of the first surfactant to the second surfactant is from about 15:1 to about 1:5, preferably from about 10:1 to about 1:2, and more preferably about 1:1. 5. A liquid detergent composition described in any one of 1 to 4, further comprising an additional surfactant including a nonionic surfactant, an anionic surfactant, or a combination thereof. 6. The liquid detergent composition of 5, wherein the additional surfactant comprises a combination of a linear alkyl benzene sulfonate and a nonionic surfactant. 7. The liquid detergent composition according to 5, wherein the additional surfactant comprises an anionic surfactant and a nonionic surfactant comprising an ethoxylated alcohol. 8. The liquid detergent composition according to any one of 1 to 7, wherein the detergent adjuvant comprises an enzyme, an enzyme stabilizer, a builder, a hueing agent, a soil redeposition inhibitor, a bleaching agent, or a combination thereof. 9. A liquid detergent composition according to any one of 1 to 8, wherein the composition has an actual stain removal index that is at least 0.5 higher than the expected stain removal index. 10. The liquid detergent composition of claim 9, wherein the stain removal is measured in dust sebum, discriminating sebum, cooked beef, bacon grease, grass, or American black tea. 11.C 12 ~C 16 11. The liquid detergent composition according to any one of 1 to 10, wherein the alkyl ethoxy sulfate has an alkyl chain with a weight average molecular weight of about 211 to about 220 daltons. 12. mixture About 15% by weight to about 40% by weight of Equation 1 surfactant isomerism The body 12. The liquid detergent composition according to any one of 1 to 11, wherein n=1. 13. mixture About 60% to about 90% by weight of Equation 1 surfactant isomerism The body 13. The liquid detergent composition according to any one of 1 to 12, wherein n<3. 14. A liquid detergent composition according to any one of 1 to 13, wherein about 90% to about 100% by weight of the first surfactant is a surfactant isomer having m+n=11. 15.C 12 ~C 16 15. The liquid detergent composition according to any one of 1 to 14, wherein the alkyl ethoxy sulfate has an alkyl chain with a weight average molecular weight of about 211 to about 220 daltons. 16. A liquid detergent composition according to any one of 1 to 15, wherein the stain removal index is measured on a cotton swatch. [Example]

[0083] Example 1: Preparation of branched C15 alcohol products The homogeneous rhodium organophosphorus catalyst used in this example was prepared in a high-pressure, stainless steel, stirred autoclave. To the autoclave was added 0.027 wt. % Rh(CO)2ACAC ((acetylacetonato)dicarbonylrhodium(I)), 1.36 wt. % tris(2,4-di-t-butylphenyl)phosphite ligand, and 98.62 wt. % Synfluid® PAO 4 cSt (Chevron Phillips Chemical Company LP, PO Box 4910, The Woodlands, TX 77387-4910, phone number (800) 231-3260) inert solvent. The mixture was heated at 80°C for 4 hours under a CO / H2 atmosphere and 2 bar (g) pressure to produce an active rhodium catalyst solution (109 ppm rhodium, P:Rh molar ratio = 20). A C14 linear alpha olefin feedstock (1-tetradecene) from Chevron Phillips Chemical Company LP (AlphaPlus® 1-tetradecene from Chevron Phillips Chemical Company LP, PO Box 4910, The Woodlands, TX 77387-4910, telephone number (800) 231-3260) was added. The resulting mixture had a rhodium concentration of approximately 30 ppm. The 1-tetradecene linear alpha olefin was then isomerized at 80°C for 12 hours in the presence of a CO / H2 atmosphere and 1 bar (g) pressure. The isomerized olefin was then hydroformylated at 70°C for 8 hours in the presence of a CO / H2 atmosphere and 20 bar (g) pressure. The resulting reaction product was flash distilled at 150-160°C and 25 mbar to recover the rhodium catalyst solution as a bottoms product and a branched C15 aldehyde overhead product. The recovered rhodium catalyst solution was then used again to complete a second batch of 1-tetradecene isomerization (4 hours) and hydroformylation (6 hours). The C15 aldehyde products from the two batches were combined to yield a branched C15 aldehyde product containing:

[0084] [Table 5] The weight percent of branching in the branched C15 aldehyde product was 87.8%.

[0085] The branched C15 aldehyde product was hydrogenated in a high-pressure Inconel 625 stirred autoclave at 150°C and 20 bar (g) hydrogen pressure. The hydrogenation catalyst used was Raney® Nickel 3111 (WR Grace & Co., 7500 Grace Drive, Columbia, MD 21044, USA, phone number 1-410-531-4000) catalyst used at 0.25 wt% loading. The aldehyde was hydrogenated for 10 hours, and the resulting reaction mixture was filtered to produce a branched C15 alcohol product containing:

[0086] [Table 6] The weight percent of 2-alkyl branches in the branched C15 alcohol product was 83.6%.

[0087] Example 2. Synthesis of narrowly branched pentadecanol (C15) sulfate using a falling film sulfation reactor (branched alkyl sulfate example Z) The alcohol from Example 1 was sulfated in a falling film using a Chemithon single 15 mm x 2 m tubular reactor with SO3 produced from a sulfur-fired gas plant operating at 5.5 lb / hr of sulfur and producing 3.76% SO3 by volume. The alcohol feed rate was 17.4 kg / hr and the feed temperature was 83°F. Conversion of the alcohol to an alcohol sulfate acid mixture was achieved with 97% completeness. Neutralization with 50% sodium hydroxide was complete to 0.54% excess sodium hydroxide at ambient process temperature. 30 gallons of sodium were used to neutralize the C15 narrow-branched alcohol sulfate paste. Analysis by standard cationic SO3 titration determined the final average product activity to be 74.5%. The average unsulfated level was 2.65% w / w.

[0088] [Table 7] * By weight of starting alcohol ** By weight of 2-alkyl branched C15 alcohol

[0089] Combination example

[0090] [Table 8]

[0091] [Table 9]

[0092] [Table 10] 1 C12-15EO2.5S alkyl ethoxy sulfate, where the alkyl portion of the AES has a molecular weight of 211-218 daltons, available from P&G Chemicals; 2 Branched Alkyl Sulfate Example Z; 3 High C12 (96%) linear alkylbenzene sulfonate supplied by P&G Chemicals; 4 Surfonic L24-9 available from Huntsman 5 C12 / C14 amine oxides supplied by P&G Chemicals; 6 Citrosol 502, commercially available from Archer Daniels Midland; 7 Preferenz, commercially available from DuPont; 8 Arctic, commercially available from Novozymes; 9 disodium tetraborate pentahydrate, commercially supplied by Univar Solutions; 10 PE-20, commercially available from BASF; 11 Sodium lauryl sulfate available from P&G Chemicals

[0093] Comparative and inventive examples are prepared by combining all ingredients to obtain comparative composition A, except that for comparative compositions B-G and inventive compositions 1-3, not all of the water is added to leave space (called a hole) for the addition of the branched alkyl sulfate and alkyl ethoxy sulfate. To make comparative composition A, the following ingredients were rapidly mixed with a mixing impeller for approximately 60 minutes to achieve vortexing: some water, solvent, surfactant (any surfactant that is not a branched alkyl sulfate or alkyl ethoxy sulfate), borax, stabilizer, neutralizer, builder, chelating agent, polymer, and enzyme to result in a stable one-phase liquid.

[0094] To make Comparative Compositions B-G and Inventive Compositions 1-3, branched alkyl sulfate and alkyl ethoxy sulfate were added to the top of Comparative Composition A (with holes) to achieve the desired levels. Caustic or sulfur was added to achieve a consistent pH of 8.2-8.6 before adding the remaining water to balance the formula.

[0095] Compositions 4-9 of the present invention can be made by rapidly mixing the following ingredients with a mixing impeller for approximately 60 minutes to achieve vortexing: some water, solvent, surfactant, borax, stabilizer, neutralizer, builder, chelating agent, polymer, and enzyme to result in a stable one-phase liquid. Caustic or sulfur was added to achieve a consistent pH of 8.2-8.6 before adding the remaining water to balance the formulation.

[0096] method Stain Removal Index Method The method involves using a tergotometer to simulate washing fabrics in a washing machine. The test formulation was used to wash the test fabrics along with clean knitted cotton ballast and eleven 6 cm x 6 cm SBL2004 stain squares (60 g). The SBL2004 sheets were purchased from WFK Testgewebe GmbH and cut into 6 cm x 6 cm squares. The wash test consisted of two internal replicates and four external replicates for each stain type and treatments A-J listed below (Table 4). The total amount of liquid detergent used in the test was 2.36 grams.

[0097] A tergotometer pot containing 1 L of test wash solution + test fabric, stain square, and ballast at 25°C and 7 US gpg was agitated at 208 rpm for 12 minutes and spun dry. The fabrics were then rinsed in 7 US gpg water at 15°C for 5 minutes at 167 rpm and spun dry. After rinsing, the fabrics were dried on high for 70 minutes before analysis. Image analysis was used to compare each stain to a control sample of unstained fabric. Software converted the resulting images to standard color values ​​and compared them to reference values ​​based on the commonly used Macbeth Color Retention Chart, assigning a color value to each stain (stain level). Eight replicates of each were prepared. A Stain Removal Index score for each stain can be calculated. Stain removal from the swatches was measured as follows:

[0098]

number

[0099] The dimensions and values ​​disclosed herein should not be understood as being strictly limited to the exact numerical values ​​recited. Instead, unless otherwise specified, each such dimension is intended to mean both the recited value and a functionally equivalent range surrounding that value. For example, a dimension disclosed as "40 mm" is intended to mean "about 40 mm."

[0100] All documents cited herein, including any cross-referenced or related patents or patent applications, and any patent applications or patents to which this application claims priority or benefit, are incorporated herein by reference in their entirety, unless expressly stated to the contrary. The citation of any document shall not be deemed to be prior art to any invention disclosed or claimed herein, or to teach, suggest, or disclose any such invention, either alone or in combination with any other reference or references. Furthermore, to the extent that any meaning or definition of a term in this document conflicts with any meaning or definition of the same term in a document incorporated by reference, the meaning or definition assigned to that term in this document shall apply.

[0101] While particular embodiments of the present invention have been illustrated and described, it would be obvious to those skilled in the art that various other changes and modifications can be made without departing from the spirit and scope of the invention. It is therefore intended to cover in the appended claims all such changes and modifications that are within the scope of this invention.

Claims

1. 1. A liquid detergent composition comprising: a) a first surfactant consisting essentially of a mixture of surfactant isomers of Formula 1 and a surfactant of Formula 2, 【Chemistry 1】 1% to 30% by weight of the composition of a first surfactant, wherein 50% to 100% by weight of the first surfactant is an isomer having m+n=11, and 25% to 50% by weight of the mixture of surfactant isomers of Formula 1 have n=0, and 15% to 40% by weight of the mixture of surfactant isomers of Formula 1 have n=1, and 0.001% to 25% by weight of the first surfactant is a surfactant of Formula 2, where X is a hydrophilic moiety; b) C having an average degree of ethoxylation of 1.5 to 3 １２ ~C １６ a second surfactant comprising an alkyl ethoxy sulfate, in an amount of 1% to 30% by weight of the composition; c) a detergent adjuvant.

2. A liquid detergent composition as described in claim 1, wherein the liquid detergent composition contains the first surfactant in an amount of 1% to 10% by weight of the composition.

3. A liquid detergent composition as described in claim 1, wherein the liquid detergent composition contains the second surfactant in an amount of 1% to 10% by weight of the composition.

4. 10. The liquid detergent composition of claim 1, wherein the liquid detergent composition has a higher stain removal score relative to a combination of the scores of a first reference composition comprising the first surfactant and a second reference composition comprising the second surfactant.

5. 5. The liquid detergent composition of claim 4, wherein the stain comprises makeup, dust sebum, sensitive sebum, cooked beef, bacon grease, grass, or American black tea.

6. 3. The liquid detergent composition according to claim 1, wherein the weight ratio of the first surfactant to the second surfactant is from 15:1 to 1:

5.

7. A liquid detergent composition as described in claim 1 or 2, wherein the weight ratio of the first surfactant to the second surfactant is 10:1 to 1:

2.

8. A liquid detergent composition as described in claim 1 or 2, wherein the weight ratio of the first surfactant to the second surfactant is 1:

1.

9. 3. The liquid detergent composition of claim 1 or 2, further comprising an additional surfactant comprising a nonionic surfactant, an anionic surfactant, or a combination thereof.

10. 10. The liquid detergent composition of claim 9, wherein the additional surfactant comprises a combination of a linear alkyl benzene sulfonate and a nonionic surfactant.

11. 10. The liquid detergent composition of claim 9, wherein the additional surfactant comprises an anionic surfactant and a nonionic surfactant comprising an ethoxylated alcohol.

12. 3. The liquid detergent composition of claim 1, wherein the composition has an actual stain removal index that is at least 0.5 higher than the predicted stain removal index.

13. 13. The liquid detergent composition of claim 12, wherein the stain removal is measured in dust sebum, discriminating sebum, cooked beef, bacon grease, grass, or American black tea.

14. Said C １２ ~C １６ 3. A liquid detergent composition according to claim 1 or 2, wherein the alkyl ethoxy sulfate has an alkyl chain with a weight average molecular weight of 211 to 220 daltons.

15. A liquid detergent composition according to claim 1 or 2, wherein from 60% to 90% by weight of the mixture of surfactant isomers of Formula 1 have n<3.

16. 3. A liquid detergent composition according to claim 1 or 2, wherein from 90% to 100% by weight of the surfactant isomer of the first surfactant has m+n=11.

17. 13. The liquid detergent composition of claim 12, wherein the stain removal index is measured on a cotton swatch.

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